WO2013047100A1

WO2013047100A1 - Stereoscopic image display apparatus

Info

Publication number: WO2013047100A1
Application number: PCT/JP2012/072395
Authority: WO
Inventors: 孝太南澤; 稲見　昌彦; ▲すすむ▼ 舘; 典昭山口; 茂人吉田
Original assignee: シャープ株式会社
Priority date: 2011-09-30
Filing date: 2012-09-03
Publication date: 2013-04-04

Abstract

A stereoscopic image display apparatus (1) comprises an LED display device (20) in which LED modules (M) are disposed in a matrix, and a shutter device (30) in which liquid crystal cells (SL) are disposed in a matrix as a shutter that can switch between a transmissive state and a light-shielding state; a shutter pitch (SP) of the liquid crystal cells (SL) being smaller than a pixel pitch (PP) of the LED modules (M) in at least one direction among the directions in which the LED modules (M) and the liquid crystal cells (SL) are disposed. Consequently, a stereoscopic image is displayed in multiple viewpoints and the generation of crosstalk is suppressed.

Description

Stereoscopic image display device

The present invention relates to a stereoscopic image display apparatus capable of displaying a stereoscopic image in multiple directions.

Recently, display technologies for displaying 3D (stereoscopic) images have been developed. As a 3D image display technique, there are mainly a method in which a user wears glasses and a method that does not require the user to wear glasses such as a parallax barrier method.

Among these, in the method in which the user wears glasses, it is inconvenient because the user needs to wear dedicated glasses in order to view a stereoscopic image, and therefore, development of a method in which the user does not wear glasses is being developed.

Patent Document 1 discloses a stereoscopic image display device having a liquid crystal panel for displaying a stereoscopic image and a liquid crystal panel functioning as a parallax barrier disposed on the front surface of the liquid crystal panel.

FIG. 22 is a diagram illustrating the configuration of the stereoscopic image display apparatus disclosed in Patent Document 1.

As shown in FIG. 22, the stereoscopic image display device includes a display panel 250 for displaying a stereoscopic image, and an active barrier 230 that functions as a parallax barrier disposed on the front surface of the display panel 250.

In the stereoscopic image display device, the display panel 250 is composed of a liquid crystal display device, and the active barrier 230 is configured by arranging liquid crystal cells in a matrix.

For this reason, among the liquid crystal cells arranged in the active barrier 230, a liquid crystal cell at an arbitrary position can be caused to function as a parallax barrier.

Accordingly, as shown in FIG. 23, it is possible to make the observer observe the stereoscopic image with the longitudinal direction of the stereoscopic image display device as the vertical direction (vertically long type), and also in the longitudinal direction of the stereoscopic image display device as shown in FIG. With the horizontal direction (horizontal type), the image displayed on the display panel 250 can be stereoscopically viewed by the observer. Furthermore, since the center position C1 of each screen in the case of displaying a stereoscopic image in a vertically long type and in the case of displaying a stereoscopic image in a horizontally long type can be made substantially coincident with the center position C2 of the observer, the observer can It is possible to visually recognize a stereoscopic image with almost no movement of the line of sight.

Japanese Patent Publication “Japanese Patent Laid-Open No. 2006-154809” (published on June 15, 2006)

However, the stereoscopic image display device does not define the relationship between the pixel size of the display panel 250 (ie, the size of the liquid crystal cell) and the pixel size of the active barrier 230 (ie, the size of the liquid crystal cell). Depending on the observation position, crosstalk occurs in which an image of unintended pixels is visually recognized by an observer.

The present invention has been made to solve the above-described problems, and an object of the present invention is to display a stereoscopic image from multiple viewpoints and suppress the occurrence of crosstalk.

In order to solve the above problems, a stereoscopic image display device of the present invention is a stereoscopic image display device capable of displaying a stereoscopic image in multiple directions, a display device in which pixels are arranged in a matrix, and a transmission device. Shutter elements that can be switched between a state and a light-shielding state are arranged in a matrix, and the shutter device is arranged to face the light emitting surface of the display device, and the pixels and the shutter elements are arranged. In at least one of the directions, the shutter pitch of the shutter element is smaller than the pixel pitch of the pixel.

According to the above configuration, since the shutter device is aligned with the light emitting surface of the display device, light emitted from the pixel can be transmitted or shielded by the shutter element. Thereby, a multi-viewpoint stereoscopic image display device that displays stereoscopic images in multiple directions can be obtained.

And, since the shutter pitch of the shutter is smaller than the pixel pitch of the pixel in at least one direction among the directions in which the pixel and the shutter element are arranged, the stereoscopic images displayed in different directions. Crosstalk displayed with overlapping can be prevented.

The stereoscopic image display device of the present invention is a stereoscopic image display device capable of displaying stereoscopic images in multiple directions, and can switch between a display device in which pixels are arranged in a matrix and a transmission state and a light shielding state. The shutter elements are arranged in a matrix, and include a shutter device arranged to face the light emitting surface of the display device. The shutter elements are arranged in at least one direction among the directions in which the pixels and the shutter elements are arranged. The shutter pitch of the shutter element is smaller than the pixel pitch of the pixel.

This provides the effect of displaying a stereoscopic image from multiple viewpoints and suppressing the occurrence of crosstalk.

It is a figure which represents typically the cross section of a three-dimensional image display apparatus. It is a perspective view showing the structure of a three-dimensional image display apparatus. It is a top view showing the structure of the light emission surface of an LED display apparatus. It is a circuit diagram showing the structure of a LED display apparatus. It is a figure showing the structure of a shutter apparatus. It is a figure showing the display state of the stereo image of the stereo image display apparatus for every elapsed time in a horizontal viewpoint. It is a top view showing the permeation | transmission part and light-shielding part of the shutter apparatus for every elapsed time in a horizontal viewpoint. It is a figure explaining how an observer sees an image which a stereoscopic image display device displays. (A) is the schematic showing the stereoscopic image display apparatus with the same pixel pitch of an LED module, and the pixel pitch of a liquid crystal cell, (b) is a mode of the display of the stereoscopic image of the stereoscopic image display apparatus of (a). It is a figure explaining. (A) is the schematic showing the stereoscopic image display apparatus which concerns on this Embodiment, (b) is a figure explaining the mode of a stereoscopic image display of the stereoscopic image display apparatus of (a). It is a figure explaining the production | generation procedure of a stereo image. It is a figure showing the display state of the stereo image of the stereo image display apparatus for every elapsed time in a vertical viewpoint. It is a top view showing the permeation | transmission part and light-shielding part of the shutter apparatus for every elapsed time from a vertical viewpoint. It is a figure showing the mode of the stereo image display apparatus which is displaying the stereo image from the vertical and horizontal viewpoint. It is a figure explaining the method to display a stereo image from a vertical and horizontal viewpoint. It is a figure showing the relationship between the number of viewpoints and a permeation | transmission part. These are perspective views showing the structure of the stereoscopic image display apparatus which concerns on this Embodiment. (A) is a top view showing a part of pixel structure of a shutter apparatus, (b) is a figure explaining operation | movement of a MEMS shutter. It is a perspective view showing the structure of the three-dimensional image display apparatus which concerns on this Embodiment. (A) It is a top view showing the structure of the pixel of the shutter apparatus which is a permeation | transmission state, (b) is sectional drawing showing the structure of a pixel. (A) is a top view showing the structure of the pixel of the shutter apparatus which is a light-shielding state, (b) is sectional drawing showing the structure of a pixel. It is a figure showing the structure of the conventional stereo image display apparatus. It is a figure explaining how the image of the conventional stereoscopic image display apparatus looks. It is a figure explaining how the image of the conventional stereoscopic image display apparatus looks.

Hereinafter, embodiments of the present invention will be described in detail.

(Outline of stereoscopic image display device)
First, the outline of the configuration of the stereoscopic image display apparatus 1 according to the first embodiment will be described with reference to FIGS. 1 and 2.

FIG. 2 is a perspective view showing the configuration of the stereoscopic image display apparatus 1 according to the present embodiment. FIG. 1 is a diagram schematically illustrating a cross section of the stereoscopic image display device 1.

The stereoscopic image display device 1 is a multi-view stereoscopic image display device capable of displaying a stereoscopic (3D) image in multiple directions. The stereoscopic image display device 1 displays a multi-view stereoscopic image by displaying an image by space division and time division.

The stereoscopic image display device 1 includes a control unit 10, an LED (light emitting diode) display device 20 that is a self-luminous image display device, and a shutter that can switch between a light transmitting state and a light blocking state in a matrix. And a shutter device 30 as an active shutter.

1 and 2, the horizontal direction (horizontal direction) of the LED display device 20 and the shutter device 30 is defined as the X direction, and the vertical direction (vertical direction) is defined as the Y direction. Further, the direction from the left side to the right side of the LED display device 20 and the shutter device 30 is the X plus direction, and the direction from the upper side to the lower side of the LED display device 20 and the shutter device 30 is the Y plus direction.

The control unit 10 acquires a video signal from the outside, and controls driving of the LED display device 20 and the shutter device 30 in synchronization with each other based on the acquired video signal.

The LED display device 20 is a self-luminous display for image display. The LED display device 20 is an LED array display in which a plurality of LED modules (pixels) M constituting one pixel are arranged in a matrix on the light emitting surface 20a.

The LED display device 20 sequentially displays a plurality of frames constituting one stereoscopic image by sequentially lighting a plurality of LED modules. Thereby, the stereoscopic image display apparatus 1 displays a stereoscopic image.

The shutter device 30 is a shutter that partially transmits or blocks light emitted from the LED display device 20. Thereby, the stereoscopic image display apparatus 1 displays a stereoscopic image in a plurality of directions. That is, the stereoscopic image display apparatus 1 realizes display of a multi-viewpoint stereoscopic image.

The shutter device 30 is arranged to face the light emitting surface 20a of the LED display device 20. The shutter device 30 includes liquid crystal cells (shutter elements) SL arranged in a matrix as shutter elements that can be switched between a transmission state and a light shielding state.

The shutter device 30 includes an active substrate (not shown) in which a pixel electrode PE (see FIG. 5) made of a transparent electrode and a TFT element TR (see FIG. 5) functioning as a switching element of each liquid crystal cell are arranged for each liquid crystal cell. And a liquid crystal layer and a counter substrate (not shown) disposed opposite to the active substrate via the liquid crystal layer and provided with a common electrode (not shown) made of a transparent electrode.

The shutter device 30 switches the LED of the LED display device 20 by switching between the transmission state (white liquid crystal cell SL in FIG. 1) and the light shielding state (black liquid crystal cell SL in FIG. 1) of each liquid crystal cell SL. It functions as an active shutter that transmits or blocks light emitted from the module M.

In the shutter device 30, a region where the adjacent transmissive liquid crystal cell SL is formed is a transmissive portion SLT. A region adjacent to the transmissive portion SLT and where the light-shielded liquid crystal cell SL is formed is the light-shielding portion SLS.

As described above, the shutter device 30 is a liquid crystal display that displays a light shielding pattern or a transmission pattern using the liquid crystal cell SL as one pixel.

As the shutter device 30, a general liquid crystal panel without a color filter can be used.

The configuration of the shutter device 30 is preferably a matrix structure capable of displaying a vertical viewpoint (described later), a horizontal viewpoint (described later), and a vertical and horizontal viewpoint (described later). More preferably, it has an active matrix structure in which each barrier can be dynamically switched.

In the stereoscopic image display device 1, as shown in FIG. 1, a plurality of pixels arranged in the shutter device 30 compared to the pixel pitch PP which is the pitch of the plurality of LED modules M arranged in the LED display device 20. The shutter pitch SP which is the pitch of the liquid crystal cell SL is smaller. That is, the shutter pitch SP, which is the pixel pitch of the shutter device 30 that is a display that displays a light shielding pattern, is smaller and higher definition than the pixel pitch PP of the LED display device 20 that is a display that displays a stereoscopic image. .

Thereby, the stereoscopic image display device 1 can reduce crosstalk that occurs when a stereoscopic image is displayed from multiple viewpoints.

As an example, in the stereoscopic image display device 1, the ratio between the length of the pixel pitch PP and the length of the shutter pitch SP is 6: 1. Note that the ratio between the length of the pixel pitch PP and the length of the shutter pitch SP is not limited to this. That is, it is only necessary that the length of the pixel pitch PP> the length of the shutter pitch SS. For example, 9: 1 can be appropriately set.

Further, the shutter device 20 is provided with a transmissive portion SLT that is configured by a plurality of adjacent liquid crystal cells SL disposed to face the LED module M in a transmissive state. Then, the length of the transmission part SLT in the direction in which the LED modules M are arranged (for example, the X direction or the Y direction) is compared with the length MS of the LED modules M in the direction in which the LED modules M are arranged (for example, the X direction or the Y direction). Shorter.

Thereby, the stereoscopic image display apparatus 1 can narrow the light emitted from the LED module M by the transmission part SLT. Thereby, crosstalk can be reliably prevented. Details will be described later.

(Configuration of LED display device 20)
Next, the configuration of the LED display device 20 of the stereoscopic image display device 1 will be described with reference to FIGS. 3 and 4.

FIG. 3 is a plan view showing the configuration of the light emitting surface 20a of the LED display device 20. FIG.

The LED display device 20 is provided with LED modules M constituting pixels, and includes a light emitting surface 20a for displaying an image (parallax image).

The LED modules M are arranged in a matrix in the horizontal direction (that is, X direction) on the light emitting surface 20a and in the vertical direction (that is, Y direction) on the light emitting surface 20a.

As shown in FIG. 3, the light emitting surface 20a includes a reflecting member 22 arranged in a lattice shape. A region partitioned by the reflecting member 22 is a formation region P of the LED module M. One LED module M which is one pixel is arranged in the formation area P of the LED module M.

The LED module M includes an LED (self-emitting element) R that emits red light, an LED (self-emitting element) G that emits green light, an LED (self-emitting element) B that emits blue light, and an LEDR / G. A hemispherical lens member 23 covering B is provided. LEDR · G · B is mounted on a substrate in the LED module formation region P. In the present embodiment, one LEDR, G, and B are arranged in the LED module M, respectively, and are described as being arranged in a line in the X direction in this order.

However, the number and arrangement of the LEDs R, G, and B are not limited to this, and a plurality of the LEDs R, G, and B may be arranged in each pixel P. The pixels P may be arranged so as to form an equilateral triangle. The number and arrangement of the LEDR / G / B can be appropriately set according to the required specifications of the product.

For convenience of explanation, FIG. 3 shows the LED modules M as a 5 × 5 array, but actually, the number of LED modules M in the LED display device 20 is larger.

In the following description, among the LED modules M arranged in a matrix, the upper left LED module M11 will be referred to as the LED modules M12, M13,. The LED modules M that are referred to as M14, M15,... And arranged in order from the LED module M11 in the Y direction may be referred to as LED modules M21, M31, M41, M51,.

The pixel pitch PP is a pitch between adjacent pixels P, that is, a pitch between adjacent LED modules M.

In the present embodiment, it is assumed that the pixel pitch PP _{X in} the X direction is equal to the pixel pitch PP _{Y in the} Y direction.

As an example, the pixel pitch P of the LED display device 20 is about 1.5 mm.

FIG. 4 is a circuit diagram showing the configuration of the LED display device 20.

As shown in FIG. 4, the LED display device 20 includes a light emitting surface 20 a and a driver 25.

The driver 25 includes a source-side shift register 20SRS, a common-side shift register 20SRC, a gradation current generation circuit GR, transistors 20S1, 20S2, 20S3,..., And transistors 20T1, 20T2,. . The light emitting surface 20a includes common lines 20C1, 20C2,..., Source lines 20L1, 20L2, 20L3.

The shift register 20SRS, the shift register 20SRC, and the gradation current generation circuit GR are each connected to the control unit 10.

The control unit 10 inputs display data to the gradation current generation circuit GR, inputs a horizontal synchronization signal (start pulse or the like) or a clock signal to the shift register 20SRS on the source side, and outputs a vertical synchronization signal (start pulse or the like) or clock. The signal is input to the shift register 20SRC on the common side. Further, the gradation current generation circuit GR generates a constant current according to display data (gradation data) DAT input from the control unit 10.

The source lines 20L1 to 20L3 extend in the Y direction and are arranged in parallel to each other. The common lines 20C1 and 20C2 extend in the X direction and are arranged in parallel to each other. The source lines 20L1, 20L3, 20L3,... And the common lines 20C1, 20C2,.

The source line 20L1 is connected to the gradation current generation circuit GR via the transistor 20S1, the source line 20L2 is connected to the gradation current generation circuit GR via the transistor 20S2, and the source line 20L3 is connected via the transistor 20S3. It is connected to the gradation current generation circuit GR.

The gate of the transistor 20S1 is connected to the output terminal 20n1 of the source-side shift register 20SRS, the gate of the transistor 20S2 is connected to the output terminal 20n2 of the source-side shift register 20SRS, and the gate of the transistor 20S3 is connected to the output terminal 20SRS of the source-side shift register 20SRS. It is connected to the output terminal 20n3.

The common line 20C1 is grounded via the transistor 20T1, the common line 20C2 is grounded via the transistor 20T2, the gate of the transistor 20T1 is connected to the output terminal 20m1 of the shift register on the common side, and the gate of the transistor 20T2 is common. Is connected to the output terminal 20m2 of the shift register on the side.

In addition, the anode of LEDR, the anode of LEDG, and the anode of LEDB of LED module M11 (upper left LED module M) are connected to common line 20C1, the cathode of LEDR is connected to source line 20L1, and the cathode of LEDG is source line 20L2. The cathode of LEDB is connected to the source line 20L3.

The LEDR anode, LEDG anode, and LEDB anode of the LED module M21 (the LED module M adjacent in the Y direction of the LED module M11) are connected to the common line 20C2, and the cathode of the LEDR is connected to the source line 20L1. The cathode is connected to the source line 20L2, and the cathode of LEDB is connected to the source line 20L3.

The LED display device 20 displays one image by causing LEDR, LEDG, and LEDB to emit light alone or in a superimposed manner.

(Configuration of shutter device 30)
Next, the configuration of the shutter device 30 will be described with reference to FIG. FIG. 5 is a diagram illustrating the configuration of the shutter device 30.

As shown in FIG. 5, the shutter device 30 includes a shutter array unit 31 and a driver 35.

The driver 35 includes a source driver 30SD on the source side and a common driver 30CD on the common side. Further, the shutter array unit 31 includes common lines 30C1, 30C2, 30C3, source lines 30L1, 30L2, 30L3, and liquid crystal cells SL arranged in a matrix.

The source driver 30SD and the common driver 30CD are connected to the control unit 10, respectively.

The control unit 10 inputs a horizontal synchronization signal (start pulse or the like) or a clock signal to the source driver 30SD, and inputs a vertical synchronization signal (start pulse or the like) or a clock signal to the common driver 30CD. The source driver 30SD corresponds to a horizontal synchronization signal and a clock signal input from the control unit 10, and supplies a current for setting the liquid crystal cell SL in a transmissive state or a current for setting the liquid crystal cell SL in a light shielding state. Application to a predetermined liquid crystal cell.

The source lines 30L1, 30L2, 30L3,... Extend in the Y direction and are arranged in parallel to each other. Further, the common lines 30C1, 30C2, 30C3,... Extend in the X direction and are arranged in parallel to each other. The source lines 30L1, 30L2, 30L3,... And the common lines 30C1, 30C2, 30C3,.

The source line 30L1 is connected to the output terminal 30n1 of the source driver 30SD, the source line 30L2 is connected to the output terminal 30n2 of the source driver 30SD, and the source line 30L3 is connected to the output terminal 30n3 of the source driver 30SD.

The common line 30C1 is connected to the output end 30m1 of the common driver 30CD, the common line 30C2 is connected to the output end 30m2 of the common driver 30CD, and the common line 30C3 is connected to the output end 30m3 of the common driver 30CD.

A region defined by the source lines 30L1, 30L2, 30L3,... And the common lines 30C1, 30C2, 30C3,.

The liquid crystal cell SL is provided with a pixel electrode PE made of a transparent electrode such as ITO and a TFT element TR functioning as a switching element for driving the liquid crystal in the liquid crystal cell SL. In FIG. 5, the structure of the surface of the active substrate facing the counter substrate is particularly shown as the shutter array unit 31.

In the following description, among the liquid crystal cells SL arranged in a matrix, the upper left liquid crystal cell SL is referred to as a liquid crystal cell SL11, and the liquid crystal cells SL arranged in order in the X direction are sequentially arranged as liquid crystal cells. The liquid crystal cells SL arranged in order in the Y direction from the liquid crystal cell SL11 may be sequentially referred to as liquid crystal cells SL21, SL31, SL41, SL51,. .

A pitch between adjacent liquid crystal cells SL is a shutter pitch SP. The X-direction of the shutter pitch SP and shutter pitch SP _X, when the Y-direction of the shutter pitch SP and shutter pitch SP _Y, shutter pitch SP _X and Yattapitchi SP _Y together, smaller pixel pitch PP. Either of the shutter pitch SP _X and the shutter pitch SP _Y may be larger.

In this embodiment, the liquid crystal cell SL, from the shutter pitch SP _X, Vertical towards shutter pitch SP _Y is large (the longitudinal direction is the Y direction) is in the shape.

In the liquid crystal cell SL11, the gate of the TFT element TR is connected to the common line 30C1, the source of the TFT element TR is connected to the source line 30L1, and the drain of the TFT element TR is connected to the pixel electrode PE. In the liquid crystal cell SL12, the gate of the TFT element TR is connected to the common line 30C1, the source of the TFT element TR is connected to the source line 30L2, and the drain of the TFT element TR is connected to the pixel electrode PE. In the liquid crystal cell SL13, the gate of the TFT element TR is connected to the common line 30C1, the source of the TFT element TR is connected to the source line 30L3, and the drain of the TFT element TR is connected to the pixel electrode PE.

In the liquid crystal cell SL21, the gate of the TFT element TR is connected to the common line 30C2, the source of the TFT element TR is connected to the source line 30L1, and the drain of the TFT element TR is connected to the pixel electrode PE. In the liquid crystal cell SL22, the gate of the TFT element TR is connected to the common line 30C2, the source of the TFT element TR is connected to the source line 30L2, and the drain of the TFT element TR is connected to the pixel electrode PE. In the liquid crystal cell SL23, the gate of the TFT element TR is connected to the common line 30C2, the source of the TFT element TR is connected to the source line 30L3, and the drain of the TFT element TR is connected to the pixel electrode PE.

The pixel electrode PE is an electrode for switching (driving) the transmission state or the light shielding state of the liquid crystal cell SL. The shutter device 30 switches between the transmissive state and the light-shielded state of the liquid crystal cell SL by changing the orientation of the liquid crystal according to the potential difference between the pixel electrode PE and the common electrode of the counter substrate (not shown). In the liquid crystal cell SL, a transparent state is a region where the pixel electrode PE is formed.

(3D image display method (horizontal view))
Next, a stereoscopic image display method of the stereoscopic image display device 1 will be described with reference to FIGS.

FIG. 6 is a diagram illustrating a display state of a stereoscopic image of the stereoscopic image display device 1 for each elapsed time from a horizontal viewpoint. 6A shows the display state of the stereoscopic image of the stereoscopic image display apparatus 1 at time 0/240 [sec], and FIG. 6B shows the stereoscopic image display apparatus 1 at time 1/240 [sec]. (C) shows the display state of the stereoscopic image of the stereoscopic image display device 1 at time 2/240 [sec], and (d) shows the display state of 3/240 [sec]. The stereoscopic image display state of the stereoscopic image display device 1 is represented, and (e) is a diagram illustrating the stereoscopic image display state of the stereoscopic image display device 1 at a time of 4/240 [sec].

FIG. 7 is a plan view showing a transmission part and a light shielding part of the shutter device 30 for each elapsed time from a horizontal viewpoint. FIG. 7A is a plan view showing a transmission part and a light shielding part of the shutter device 30 at a time of 0/240 [sec], and FIG. 7B is a shutter device at a time of 1/240 [sec]. 30 is a plan view showing the transmissive part and the light shielding part of FIG. 30, (c) is a plan view showing the transmissive part and the light shielding part of the shutter device 30 at a time of 2/240 [sec], and (d) is a plan view. It is a top view showing the transmission part and light-shielding part of the shutter apparatus 30 in time 3/240 [sec], (e) is the transmission part and light-shielding part of the shutter apparatus 30 in time 4/240 [sec]. FIG.

As an example, a case where a stereoscopic image of five viewpoints is displayed in the horizontal direction (X direction) will be described.

Assuming that one stereoscopic image is one frame, the stereoscopic image display device 1 sequentially displays five subframes constituting one frame in each of five directions when displaying a stereoscopic image of five viewpoints. Thereby, a stereoscopic image is displayed in each of five different directions.

Here, it is assumed that the stereoscopic image display device 1 is driven at a driving frequency of 240 Hz per subframe.

As shown in FIG. 6A, a stereoscopic image is displayed at each of the viewpoint AX1, viewpoint AX2, viewpoint AX3, viewpoint AX4, and viewpoint AX5 that are sequentially arranged in the positive direction of X.

At this time, the states of the transmission part SLT and the light shielding part SLS of the shutter device 30 are as shown in FIG. In order to display a stereoscopic image from a horizontal viewpoint, a slit-like transmissive portion SLT extending in the vertical direction has a plurality of light shielding portions SLS, transmissive portions SLT, light shielding portions SLS, transmissive portions SLT,. The transmission state and the light shielding state of the liquid crystal cell SL are controlled so as to be arranged.

As shown in FIG. 6A, the slit of the transmission part SLT is provided in correspondence with the LED module M.

Here, as shown in FIG. 6A, in the lateral direction (X direction), a plurality of liquid crystal SELs facing each of the LED modules M13 and M18 are set in a transmissive state, whereby the shutter device. A transmissive portion SLT is formed at 30.

As a result, among the LED modules M arranged in the horizontal direction, five LED modules M form one set and pass through one transmission part SLT, and five viewpoints AX1, AX2, AX3, and AX4. Each of the viewpoints AX5 displays one different subframe among the five subframes constituting one frame.

6A, the light emitted from each of the LED modules M11, M12, M13, M14, and M15 is transmitted through one common transmission part SLT. The light emitted from the LED module M11 is emitted to the viewpoint AX5, the light emitted from the LED module M12 is emitted to the viewpoint AX4, the light emitted from the LED module M13 is emitted to the viewpoint AX3, and the light emitted from the LED module M14. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M15 is emitted to the viewpoint AX1.

The light emitted from each of the LED modules M16, M17, M18, M19, and M110 is adjacent to the transmissive portion SLT through which the light emitted from the LED modules M11, M12, M13, M14, and M15 is transmitted in the lateral direction (X direction). The transmission part SLT to be transmitted is transmitted as a common transmission part. The light emitted from the LED module M16 is emitted to the viewpoint AX5, the light emitted from the LED module M17 is emitted to the viewpoint AX4, the light emitted from the LED module M18 is emitted to the viewpoint AX3, and the light emitted from the LED module M19. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M110 is emitted to the viewpoint AX1.

Next, at 1/240 [sec], the position of the transmission part SLT is slid in the X minus direction as shown in FIGS. 6B and 7B.

Here, as shown in FIG. 6B, by transmitting a plurality of liquid crystal SELs facing each of the LED modules M12 and M17 in a transmissive state, transmission from 0/240 [sec] is performed. Slide the position of the part SLT in the X minus direction.

Thereby, the light emitted from each of the LED modules M11, M12, M13, and M14 is transmitted through one common transmission part SLT. The emitted light from the LED module M11 is emitted to the viewpoint AX4, the emitted light from the LED module M12 is emitted to the viewpoint AX3, the emitted light from the LED module M13 is emitted to the viewpoint AX2, and the emitted light from the LED module M14. The incident light is emitted to the viewpoint AX1.

The light emitted from each of the LED modules M15, M16, M17, M18, and M19 is transmitted adjacent to the transmissive portion SLT through which the light emitted from the LED modules M11, M12, M13, and M14 is transmitted. The part SLT is transmitted as a common transmission part. The light emitted from the LED module M15 is emitted to the viewpoint AX5, the light emitted from the LED module M16 is emitted to the viewpoint AX4, the light emitted from the LED module M17 is emitted to the viewpoint AX3, and the light emitted from the LED module M18. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M19 is emitted to the viewpoint AX1.

Next, at 2/240 [sec], as shown in FIGS. 6C and 7C, the position of the transmission part SLT is further slid in the X minus direction.

Here, as shown in FIG. 6C, a plurality of liquid crystal SELs facing each of the LED modules M11 and M16 are set in a transmissive state, so that transmission is possible from 1/240 [sec]. Slide the position of the part SLT in the X minus direction.

Thereby, the light emitted from each of the LED modules M11, M12, and M13 is transmitted through one common transmission part SLT. The emitted light from the LED module M11 is emitted to the viewpoint AX3, the emitted light from the LED module M12 is emitted to the viewpoint AX2, and the emitted light from the LED module M13 is emitted to the viewpoint AX1.

In addition, the light emitted from each of the LED modules M14, M15, M16, M17, and M18 is transmitted through the transmissive part SLT that transmits the light emitted from the LED modules M11, M12, and M13, and the transmissive part SLT adjacent in the lateral direction (X direction). Are transmitted as a common transmission part. The light emitted from the LED module M14 is emitted to the viewpoint AX5, the light emitted from the LED module M15 is emitted to the viewpoint AX4, the light emitted from the LED module M16 is emitted to the viewpoint AX3, and the light emitted from the LED module M17. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M18 is emitted to the viewpoint AX1.

Next, at 3/240 [sec], as shown in FIG. 6D and FIG. 7D, the position of the transmission part SLT is further slid in the X minus direction.

Here, as shown in FIG. 6 (d), a plurality of liquid crystal SELs facing each of the LED modules M15 and M110 are set in a transmissive state, so that transmission is possible from 2/240 [sec]. Slide the position of the part SLT in the X minus direction.

Thereby, the light emitted from each of the LED modules M13, M14, M15, M16, and M17 is transmitted through one common transmission part SLT. The light emitted from the LED module M13 is emitted to the viewpoint AX5, the light emitted from the LED module M14 is emitted to the viewpoint AX4, the light emitted from the LED module M15 is emitted to the viewpoint AX3, and the light emitted from the LED module M16. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M17 is emitted to the viewpoint AX1.

The light emitted from each of the LED modules M18, M19, and M110 is a transmissive portion SLT that is adjacent in the lateral direction (X direction) to the transmissive portion SLT through which the emitted light from the LED modules M13, M14, M15, M16, and M17 is transmitted. Are transmitted as a common transmission part. The emitted light from the LED module M18 is emitted to the viewpoint AX5, the emitted light from the LED module M19 is emitted to the viewpoint AX4, and the emitted light from the LED module M110 is emitted to the viewpoint AX3.

Next, at 4/240 [sec], as shown in FIGS. 6E and 7E, the position of the transmission portion SLT is further slid in the X minus direction.

Here, as shown in FIG. 6 (e), a plurality of liquid crystal SELs facing each of the LED modules M14 and M19 are set in a transmissive state, so that transmission is possible from 3/240 [sec]. Slide the position of the part SLT in the X minus direction.

Thereby, the light emitted from each of the LED modules M12, M13, M14, M15, and M16 is transmitted through one common transmission part SLT. The light emitted from the LED module M12 is emitted to the viewpoint AX5, the light emitted from the LED module M13 is emitted to the viewpoint AX4, the light emitted from the LED module M14 is emitted to the viewpoint AX3, and the light emitted from the LED module M15. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M16 is emitted to the viewpoint AX1.

The light emitted from each of the LED modules M17, M18, M19, and M110 is transmitted adjacent to the transmissive portion SLT through which the light emitted from the LED modules M12, M13, M14, M15, and M16 is transmitted. The part SLT is transmitted as a common transmission part. The light emitted from the LED module M17 is emitted to the viewpoint AX5, the light emitted from the LED module M18 is emitted to the viewpoint AX4, the light emitted from the LED module M19 is emitted to the viewpoint AX3, and the light emitted from the LED module M110. The incident light is emitted to the viewpoint AX2.

In this way, the stereoscopic image display device 1 displays a stereoscopic image as a stereoscopic image pixel for displaying, for example, the LED modules M16 to M110 to the observer of the viewpoint AX1. In addition, the stereoscopic image is displayed to the observer at the viewpoint AX2, for example, using the LED modules M15 to M109 as the stereoscopic image pixels for displaying one stereoscopic image. In addition, the stereoscopic image is displayed to the observer at the viewpoint AX3 using, for example, the LED modules M14 to M108 as the stereoscopic image pixels for displaying one stereoscopic image. Further, the stereoscopic image is displayed to the observer of the viewpoint AX4 using, for example, the LED modules M13 to M107 as stereoscopic image pixels for displaying one stereoscopic image. Further, a stereoscopic image is displayed to the observer at the viewpoint AX5, for example, using the LED modules M13 to M109 as the stereoscopic image pixels for displaying one stereoscopic image.

In this way, the stereoscopic image display device 1 displays a plurality of stereoscopic images using the plurality of pixels as one pixel for stereoscopic image display.

FIG. 8 is a diagram for explaining how an image displayed by the stereoscopic image display device 1 is viewed by an observer.

8A shows the relationship between the image D0 displayed by the stereoscopic image display device 1 and each viewpoint AX1, viewpoint AX2, viewpoint AX3, viewpoint AX4, and viewpoint AX5, and FIG. 8B shows one stereoscopic display. The five frames DA, DB, DC, DD, and DE constituting the image D are represented, and (c) represents one stereoscopic image D.

For example, as shown in FIG. 8A, when the stereoscopic image display device 1 displays an image (parallax image) D0 at time 0/240 [sec], the observer of the viewpoint AX1 receives ( b) The frame DA is visually recognized as a display image as shown in (i), and the observer of the viewpoint AX2 sees the frame DB as a display image as shown in (b) (ii) of FIG. The observer sees the frame DC as a display image as shown in (b) and (iii) of FIG. 8, and the observer sees the frame DD as shown in (b) and (iv) of FIG. As shown in FIGS. 8B and 8V, the frame DE is visually recognized as a display image by an observer who is visually recognized as an image AX5.

Although the order of the viewpoints AX1, AX2, AX3, AX4, and AX5 is different, the frames DA to DE shown in (b), (i), and (v) of FIG. 8 are each viewed once, AX1, AX2, and AX3.・ Each observer of AX4 and AX5 visually recognizes as a display image, so that each observer of the viewpoints AX1, AX2, AX3, AX4, and AX5 visually recognizes one stereoscopic image D as shown in FIG. 8C. can do.

In this way, the stereoscopic image display device 1 displays five different images in one set at high speed in five directions, so that the user does not wear glasses for visually recognizing the stereoscopic image. In addition, a stereoscopic image can be displayed in five directions. Note that the plurality of directions for displaying a stereoscopic image is not limited to five directions, but may be four directions or less, or may be six directions or more.

In this way, the stereoscopic image display apparatus 1 includes, for example, the pixel pitch PP _{X in the} direction in which the pixels for stereoscopic images for displaying one stereoscopic image, such as the LED modules M16 to M110, are arranged, and the shutter pitch SP _X. In this case, the shutter pitch SP _X is smaller.

As an example, as shown in FIG. 1, the ratio of the pixel pitch PP _X and the shutter pitch SP _X is 6: 1.

Thereby, since the color mixture of the light radiate | emitted from each of the some LED module M which comprises the pixel for stereoscopic images can be suppressed, crosstalk can be prevented. Note that the ratio between the pixel pitch PP _X and the shutter pitch SP _X is not limited to 6: 1, and can be changed as appropriate, for example, 9: 1.

Further, as described above, one stereoscopic image D is composed of a plurality of frames DA, DB, DC, DD, DE displayed in order, and each of the plurality of frames DA, DB, DC, DD, DE is Among the plurality of LED modules M constituting the stereoscopic image pixel (for example, LED modules M16 to M110 for the observer of the viewpoint AX1), different LED modules M (for example, for the observer of the viewpoint AX1) Any one of the LED modules M16 to M110) is displayed as one pixel.

Accordingly, each of the plurality of frames DA, DB, DC, DD, and DE is displayed as a pixel that is different from each other among the plurality of pixels constituting the pixel for the stereoscopic image. 1 can display a stereoscopic image in multiple directions.

As described above, in the stereoscopic image display apparatus 1, the plurality of LED modules M constituting the stereoscopic image pixels are arranged in a line in the horizontal direction on the light emitting surface 20a. Thereby, a plurality of stereoscopic images can be displayed in a direction parallel to the horizontal direction on the light emitting surface 20a.

(Regarding the resolution of the LED display device 20 and the shutter device 30)
Next, the resolution of the LED display device 20 and the shutter device 30 will be described with reference to FIGS. 9A and 9B and FIGS. 10A and 10B.

9A is a schematic diagram illustrating the stereoscopic image display device 100 in which the pixel pitch of the LED module is equal to the pixel pitch of the liquid crystal cell, and FIG. 9B is a stereoscopic image of the stereoscopic image display device 100 in FIG. It is a figure explaining the mode of a display.

FIG. 10A is a schematic diagram illustrating the stereoscopic image display apparatus 1 according to the present embodiment, and FIG. 10B is a diagram for explaining a display state of the stereoscopic image of the stereoscopic image display apparatus 1 of FIG. is there.

First, with reference to FIGS. 9A and 9B, a case where a stereoscopic image display device 100 in which the pixel pitch of the LED display device is the same as the pixel pitch of the shutter device displays a multi-viewpoint stereoscopic image. explain.

The stereoscopic image display device 100 includes an LED display device 120 and a shutter device 130.

The LED display device 120 has the same configuration as the LED display 20. In the shutter device 130, the shutter pitch SP, which is the pitch of the liquid crystal cells 130SL, is the same as the pixel pitch PP of the LED display device 120.

In order to display a stereoscopic image of five viewpoints in the horizontal direction on the stereoscopic image display device 100, for example, the transmissive portion 130SLT is provided in the shutter device 130 by setting the liquid crystal cell 130SL facing the LED module M13 in a transmissive state.

9B, the light emitted from each of the LED modules M11, M12, M13, M14, and M15 of the LED display device 120 passes through one common transmission unit 130SLT.

As a result, the emitted light from the LED module M11 is emitted to the viewpoint AX5, the emitted light from the LED module M12 is emitted to the viewpoint AX4, the emitted light from the LED module M13 is emitted to the viewpoint AX3, and from the LED module M14. The emitted light is emitted to the viewpoint AX2, and the emitted light from the LED module M15 is emitted to the viewpoint AX1.

However, in the stereoscopic image display device 100, since the shutter pitch SP of the shutter device 100 and the pixel pitch PP of the LED display device 120 are equal, light emitted from adjacent LED modules is mixed between the viewpoints.

For example, the light emitted from the LED module M15 and the light emitted from the LED module M14 are mixed between the viewpoint AX1 and the viewpoint AX2, and the light emitted from the LED module M14 and the LED module are mixed between the viewpoint AX2 and the viewpoint AX3. The light emitted from M13 is mixed in color, the light emitted from the LED module M13 and the light emitted from the LED module M12 are mixed between the viewpoints AX3 and AX4, and the LED module between the viewpoints AX4 and AX5. The light emitted from M12 and the light emitted from LED module M11 are mixed.

Thus, in the stereoscopic image display apparatus 100, crosstalk occurs in which light emitted from adjacent LED modules is mixed between adjacent viewpoints. For this reason, depending on the angle at which the observer observes the stereoscopic image, the observer visually recognizes the image in which crosstalk has occurred, which causes a reduction in display quality.

Further, for example, even when the number of viewpoints is increased instead of five viewpoints or when the number of viewpoints is reduced, the stereoscopic image display apparatus 100 sets the slit position of the transmission unit 130SLT to the pixel pitch of the LED module M. It can be set only at equal pitch intervals with PP, and cannot be set to an optimum position for suppressing crosstalk.

In order to finely adjust the relative position of the liquid crystal cell 130SLP with respect to the LED module M, the position of the LED display device 120 or the shutter device 130 must be physically shifted, which is not practical.

On the other hand, as shown in FIG. 10A, the stereoscopic image display device 1 according to the present embodiment has a liquid crystal of the shutter device 30 as compared with the pixel pitch PP that is the pitch of the LED modules M of the LED display device 20. The shutter pitch SP, which is the pitch of the cell SL, is finer. For this reason, the transmissive part SLT whose length in the X direction is shorter than the pixel pitch PP of the LED module M can be formed in the shutter device 30.

Furthermore, in the stereoscopic image display device 1 according to the present embodiment, the pitch of the liquid crystal cells SL of the shutter device 30 is larger than the length M (the length MS _X in the X direction) of the LED module M of the LED display device 20. A certain shutter pitch SP is finer. For this reason, the length of the transmissive part SLT in the X direction can be made shorter than the length MS of the LED module M.

For example, in order to display a stereoscopic image of five viewpoints in the lateral direction on the stereoscopic image display device 1, out of the plurality of liquid crystal cells SL facing the LED module M13, the length MS _X in the X direction of the LED module M13 is longer. The transmissive portion SLT is provided so that the length is short.

Then, as shown in FIG. 10B, the light emitted from each of the LED modules M11, M12, M13, M14, and M15 of the LED display device 20 passes through one common transmission part SLT.

As described above, since the length of the transmissive portion SLT in the X direction is shorter than the pixel pitch PP of the LED module M, the light emitted to each viewpoint AX1, viewpoint AX2, viewpoint AX3, viewpoint AX4, and viewpoint AX5 is It is narrowed down by the transmission part SLT, and it is possible to prevent the occurrence of crosstalk among the viewpoints AX1, AX2, AX3, AX4, and AX5.

Further, in the present embodiment, the length of the transmissive part SLT in the X direction is shorter than the length MS _X of the LED module M13 in the X direction, so that each viewpoint AX1, viewpoint AX2, viewpoint AX3, viewpoint It is possible to prevent crosstalk from occurring between AX4 and viewpoint AX5.

Further, in the stereoscopic image display device 1, for example, even when the number of viewpoints is increased instead of five viewpoints or when the number of viewpoints is reduced, the slit position of the transmissive part SLT is set to the pixel pitch of the LED module M. It can be set more finely than PP, and the relative position of the liquid crystal cell 130SLP with respect to the LED module M can be finely adjusted simply by changing the display of the shutter pattern of the shutter device 30. For this reason, there is no need to physically move the relative position between the LED display device 20 and the shutter device 30, so that a practical stereoscopic image display device 1 can be obtained.

Thus, since the stereoscopic image display device 1 displays a stereoscopic image from a horizontal viewpoint, the shutter pitch SP of the liquid crystal cell SL is smaller than the pixel pitch PP that is the pitch of the LED module M in the X direction. As a result, it is possible to prevent crosstalk in which stereoscopic images are displayed overlapping each other among the viewpoints AX1, AX2, AX3, AX4, and AX5.

Further, the transmissive portion SLT of the shutter device 30 is formed by a plurality of liquid crystal cells SL arranged at positions facing any one of the LED modules M among the plurality of LED modules M constituting the stereoscopic image pixel. Has been. Then, the transmissive portion SLT sequentially moves so as to face any one of the different LED modules M among the plurality of LED modules M constituting the stereoscopic image pixel for each of the frames DA to DE.

Thereby, the light emitted from each of the plurality of LED modules M configuring the stereoscopic image pixel is transmitted through the transmission part SLT and emitted in different directions. Thereby, a three-dimensional image can be displayed in multiple directions.

FIG. 16 is a diagram illustrating the relationship between the number of viewpoints and the transmission part. As shown in FIG. 16, as the number of viewpoints increases, the opening area of the transmission part SLT becomes smaller. In FIG. 16, the white spot represents the transmission part SLT.

Also, as shown in FIG. 16, the stereoscopic image display apparatus 1 can display a multi-view stereoscopic image by adopting a vertical viewpoint or a vertical / horizontal viewpoint in addition to the horizontal viewpoint. This vertical viewpoint and vertical and horizontal viewpoint will be described later. Even in the vertical viewpoint and the vertical and horizontal viewpoint, the area of the transmissive part SLT decreases as the number of viewpoints increases, as in the horizontal viewpoint.

Here, in the fixed slit method in which the position of the shutter is fixed instead of the active shutter, a display image of a certain pixel is only one corresponding to a specific viewpoint. For this reason, the resolution of such a fixed-slit stereoscopic image display apparatus decreases as the number of viewpoints increases.

On the other hand, according to the three-dimensional image display device 1, multi-viewpoint autostereoscopic display can be performed without reducing the resolution.

In addition, since the stereoscopic image display device 1 uses an LED display with a higher brightness than the liquid crystal display for the LED display device 20, the stereoscopic image display device 1 can display a stereoscopic image with a brightness that is visible even under ambient light. it can.

(Stereoscopic image generation procedure)
Next, a procedure for generating a stereoscopic image will be described with reference to FIG.

FIG. 11 is a diagram illustrating a procedure for generating a stereoscopic image. As shown in FIGS. 11A and 11B, the image of the structure 5 arranged in the three-dimensional space is projected onto the surface of the shutter device 30 from all lines of sight (for example, five viewpoints). Next, as shown in FIGS. 11C and 11D, a shutter pattern having a slit-like transmission portion SLT is displayed on the shutter device 30. Thereby, the projection image from each viewpoint direction is masked. Next, as shown in (e) and (f) of FIG. 11, all masked images in the line of sight (for example, five viewpoints) directions are projected onto the light emitting surface 20 a of the LED display device 20. Thereby, a three-dimensional image can be generated.

(3D image display method (vertical view))
The stereoscopic image display device 1 is not limited to a horizontal viewpoint that displays a plurality of stereoscopic images in the horizontal direction, and may display a multi-viewpoint stereoscopic image by another display method.

Next, a method of displaying a stereoscopic image from a vertical viewpoint that displays a plurality of stereoscopic images in the vertical direction (Y direction) will be described with reference to FIGS.

FIG. 12 is a diagram illustrating a display state of a stereoscopic image of the stereoscopic image display device 1 for each elapsed time from a vertical viewpoint. 12A shows the display state of the stereoscopic image of the stereoscopic image display apparatus 1 at time 0/240 [sec], and FIG. 12B shows the stereoscopic image display apparatus 1 at time 1/240 [sec]. (C) shows the display state of the stereoscopic image of the stereoscopic image display device 1 at time 2/240 [sec], and (d) shows the display state of 3/240 [sec]. The stereoscopic image display state of the stereoscopic image display device 1 is represented, and (e) is a diagram illustrating the stereoscopic image display state of the stereoscopic image display device 1 at a time of 4/240 [sec].

FIG. 13 is a plan view showing a transmission part and a light shielding part of the shutter device 30 at each elapsed time from a vertical viewpoint. FIG. 13A is a plan view showing a transmission part and a light shielding part of the shutter device 30 at a time of 0/240 [sec], and FIG. 13B is a shutter device at a time of 1/240 [sec]. 30 is a plan view showing the transmissive part and the light shielding part of FIG. 30, (c) is a plan view showing the transmissive part and the light shielding part of the shutter device 30 at a time of 2/240 [sec], and (d) is a plan view. It is a top view showing the transmission part and light-shielding part of the shutter apparatus 30 in time 3/240 [sec], (e) is the transmission part and light-shielding part of the shutter apparatus 30 in time 4/240 [sec]. FIG.

As an example, a case where a stereoscopic image of five viewpoints is displayed in the vertical direction (Y direction) will be described.

As shown in FIG. 12A, it is assumed that a stereoscopic image is displayed at each of the viewpoints AY1, AY2, AY3, AY4, and AY5 that are sequentially arranged in the positive Y direction.

At this time, the state of the transmissive part SLT and the light shielding part SLS of the shutter device 30 is as follows. As shown in FIG. The transmission state and the light shielding state of the liquid crystal cell SL are controlled so that a plurality of transmission portions SLT, light shielding portions SLS, transmission portions SLT,.

As shown in FIG. 12A, a transmissive portion SLT is formed in the shutter device 30 by setting a plurality of liquid crystal SELs facing the LED modules M31 and M81 to a transmissive state.

Thereby, among the LED modules M arranged in the vertical direction, five LED modules are set as one set, and are transmitted through one transmission part SLT, and five viewpoints AY1, AY2, AY3, AY4, Each of the viewpoints AY5 displays one different subframe among the five subframes constituting one frame.

In FIG. 12A, the light emitted from each of the LED modules M11, M21, M31, M41, and M51 is transmitted through one common transmission part SLT. The light emitted from the LED module M11 is emitted to the viewpoint AY5, the light emitted from the LED module M21 is emitted to the viewpoint AY4, the light emitted from the LED module M31 is emitted to the viewpoint AY3, and the light emitted from the LED module M41. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M51 is emitted to the viewpoint AY1.

In addition, the light emitted from each of the LED modules M61, M71, M81, M91, and M101 is adjacent to the transmission portion SLT through which the light emitted from the LED modules M11, M21, M31, M41, and M51 is transmitted in the vertical direction (Y direction). The transmission part SLT to be transmitted is transmitted as a common transmission part. The emitted light from the LED module M61 is emitted to the viewpoint AY5, the emitted light from the LED module M71 is emitted to the viewpoint AY4, the emitted light from the LED module M81 is emitted to the viewpoint AY3, and the emitted light from the LED module M91. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M101 is emitted to the viewpoint AY1.

Next, at 1/240 [sec], as shown in FIGS. 12B and 13B, the position of the transmission part SLT is slid in the Y minus direction.

Here, as shown in FIG. 12 (b), a plurality of liquid crystal SELs facing each of the LED modules M21 and M71 are set in a transmissive state, so that transmission can be performed from 0/240 [sec]. Slide the position of the part SLT in the Y minus direction.

Thereby, the light emitted from each of the LED modules M11, M21, M31, and M41 is transmitted through one common transmission part SLT. The light emitted from the LED module M11 is emitted to the viewpoint AY4, the light emitted from the LED module M21 is emitted to the viewpoint AY3, the light emitted from the LED module M31 is emitted to the viewpoint AY2, and the light emitted from the LED module M41. The incident light is emitted to the viewpoint AY1.

The light emitted from each of the LED modules M51, M61, M71, M81, and M91 is transmitted adjacent to the transmissive portion SLT through which the light emitted from the LED modules M11, M21, M31, and M41 is transmitted. The part SLT is transmitted as a common transmission part. The light emitted from the LED module M51 is emitted to the viewpoint AY5, the light emitted from the LED module M61 is emitted to the viewpoint AY4, the light emitted from the LED module M71 is emitted to the viewpoint AY3, and the light emitted from the LED module M81. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M19 is emitted to the viewpoint AY1.

Next, at 2/240 [sec], as shown in FIGS. 12C and 13C, the position of the transmission part SLT is further slid in the Y-minus direction.

Here, as shown in FIG. 12 (c), a plurality of liquid crystal SELs facing each of the LED modules M11 and M61 are set in a transmissive state, so that transmission is possible from 1/240 [sec]. Slide the position of the part SLT in the Y minus direction.

Thereby, the light emitted from each of the LED modules M11, M21, and M31 is transmitted through one common transmission part SLT. The emitted light from the LED module M11 is emitted to the viewpoint AY3, the emitted light from the LED module M21 is emitted to the viewpoint AY2, and the emitted light from the LED module M31 is emitted to the viewpoint AY1.

In addition, the light emitted from each of the LED modules M41, M51, M61, M71, and M81 is transmitted through the light-transmitting portion SLT that transmits light emitted from the LED modules M11, M21, and M31, and the light-transmitting portion SLT adjacent in the vertical direction (Y direction). Are transmitted as a common transmission part. The light emitted from the LED module M41 is emitted to the viewpoint AY5, the light emitted from the LED module M15 is emitted to the viewpoint AY4, the light emitted from the LED module M16 is emitted to the viewpoint AY3, and the light emitted from the LED module M17. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M18 is emitted to the viewpoint AY1.

Next, at 3/240 [sec], as shown in FIG. 12 (d) and FIG. 13 (d), the position of the transmission part SLT is further slid in the Y minus direction.

Here, as shown in FIG. 12 (d), a plurality of liquid crystal SELs facing each of the LED modules M51 and M101 are set in a transmissive state, so that transmission is possible from 2/240 [sec]. Slide the position of the part SLT in the Y minus direction.

Thereby, the light emitted from each of the LED modules M31, M41, M51, M61, and M71 is transmitted through one common transmission part SLT. The light emitted from the LED module M31 is emitted to the viewpoint AY5, the light emitted from the LED module M41 is emitted to the viewpoint AY4, the light emitted from the LED module M51 is emitted to the viewpoint AY3, and the light emitted from the LED module M61. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M71 is emitted to the viewpoint AY1.

In addition, the light emitted from each of the LED modules M81, M91, and M101 is transmitted through the light-transmitting portion SLT that transmits light emitted from the LED modules M31, M41, M51, M61, and M71, and the light-transmitting portion SLT adjacent in the vertical direction (Y direction). Are transmitted as a common transmission part. The emitted light from the LED module M81 is emitted to the viewpoint AY5, the emitted light from the LED module M91 is emitted to the viewpoint AY4, and the emitted light from the LED module M101 is emitted to the viewpoint AY3.

Next, at 4/240 [sec], as shown in FIGS. 12E and 13E, the position of the transmission part SLT is further slid in the Y-minus direction.

Here, as shown in FIG. 12 (e), by transmitting a plurality of liquid crystal SELs facing each of the LED modules M41 and M91 in a transmissive state, transmission is possible from 3/240 [sec]. Slide the position of the part SLT in the Y minus direction.

Thereby, the light emitted from each of the LED modules M21, M31, M41, M51, and M61 is transmitted through one common transmission part SLT. The light emitted from the LED module M21 is emitted to the viewpoint AY5, the light emitted from the LED module M31 is emitted to the viewpoint AY4, the light emitted from the LED module M41 is emitted to the viewpoint AY3, and the light emitted from the LED module M51. The emitted light is emitted to the viewpoint AY2, and the emitted light from the LED module M61 is emitted to the viewpoint AY1.

In addition, the light emitted from each of the LED modules M71, M81, M91, and M101 is transmitted adjacent to the transmissive portion SLT through which the light emitted from the LED modules M21, M31, M41, M51, and M61 is transmitted in the vertical direction (Y direction). The part SLT is transmitted as a common transmission part. The light emitted from the LED module M71 is emitted to the viewpoint AY5, the light emitted from the LED module M81 is emitted to the viewpoint AY4, the light emitted from the LED module M91 is emitted to the viewpoint AY3, and the light emitted from the LED module M101. The incident light is emitted to the viewpoint AY2.

In this way, the stereoscopic image display device 1 can display a stereoscopic image of five viewpoints in the vertical direction. In addition, the direction which displays a stereo image is not limited to 5 directions, 4 directions or less may be sufficient and 6 directions or more may be sufficient.

As described above, in the stereoscopic image display device 1, a plurality of pixels (for example, M61 to M101 for the observer of the viewpoint AY1) constituting the above-mentioned standing image pixels are arranged in the vertical direction (Y direction) on the light emitting surface 20a. They may be arranged in a line. Thereby, a plurality of stereoscopic images can be displayed in a direction parallel to the vertical direction on the light emitting surface 20a.

As described above, the stereoscopic image display apparatus 1 includes, for example, the pixel pitch PP _{Y in the} direction in which the pixels for stereoscopic images for displaying one stereoscopic image, such as the LED modules M61 to M101, and the shutter pitch SP _Y are arranged. and in, the smaller the shutter pitch SP _Y.

Thereby, since color mixture of light emitted from each of the plurality of LED modules M constituting the stereoscopic image pixel can be suppressed, crosstalk can be prevented.

(3D image display method (vertical and horizontal viewpoint))
Next, a three-dimensional image display method for a vertical and horizontal viewpoint, which is a method for displaying a stereoscopic image different from the horizontal viewpoint and the vertical viewpoint, will be described with reference to FIGS.

FIG. 14 is a diagram illustrating a state of the stereoscopic image display apparatus 1 displaying a stereoscopic image from a vertical and horizontal viewpoint. FIG. 15 is a diagram illustrating a method of displaying a stereoscopic image from a vertical and horizontal viewpoint.

As shown in FIG. 14, in order to display one stereoscopic image at the vertical and horizontal viewpoints, one stereoscopic image is displayed by displaying frames in a plurality of directions in the horizontal and vertical directions.

As an example, a method of displaying a stereoscopic image with vertical and horizontal viewpoints of a total of 12 viewpoints of 4 viewpoints in the horizontal direction and 3 viewpoints in the vertical direction will be described.

When one stereoscopic image is set as one set, the stereoscopic image display device 1 displays one stereoscopic image by sequentially displaying 12 frames obtained by dividing one set.

Here, it is assumed that the stereoscopic image display device 1 is driven at a driving frequency of 240 Hz per frame.

A region MSET indicated by a broken line in FIG. 15 is a range in which one transmission portion SLT operates (slides) per set.

Further, the arrow in the area MSET in FIG. 15 indicates the direction in which the transmission part SLT operates (slides) per set.

Suppose that the area MEST includes four LED modules M in the horizontal direction and three LED modules M in the vertical direction among the LED modules M.

At time 0/240 [sec], the transmission state and the light shielding state of the liquid crystal cell SL of the shutter device 30 are controlled so that the transmission part SLT is located in the upper left of the region MSET. Thereby, the light emitted from the 12 LED modules M around the LED module M centering on the LED module M facing the transmission part SLT is transmitted through the transmission part SLT as a common transmission part, and is different from each other. It is emitted in the direction. As a result, the first frame of the 12 frames constituting one set is displayed in 12 directions.

At time 1/240 [sec], the transmissive part SLT is slid in the X plus direction by the pitch of the LED module M from time 0/240 [sec]. As a result, the light emitted from the 12 LED modules M around the LED module M around the LED module M facing the transmissive part SLT that has slid passes through the transmissive part SLT as a common transmissive part, and It is emitted in 12 different directions. As a result, the second frame of the 12 frames constituting one set is displayed in 12 directions.

In this way, the transmissive part SLT is sequentially slid in the horizontal direction (X plus direction), and when it reaches the right end of the area MSET, it is slid to the left end of the second step from the top of the area MSET, and sequentially in the right direction ( The light emitted from the LED module M is transmitted by sliding in the X plus direction).

Then, at 11/240 sec, the light emitted from the LED module M is transmitted through the transmission part SLT located in the lower right of the region MSET, so that one set of stereoscopic images including 12 frames can be displayed in 12 directions. Is displayed.

As described above, the stereoscopic image display apparatus 1 can display a multi-viewpoint stereoscopic image with a vertical and horizontal viewpoint combining a horizontal viewpoint and a vertical viewpoint.

As described above, in the stereoscopic image display device 1, a plurality of pixels constituting the stereoscopic image pixels are arranged side by side in the horizontal direction on the light emitting surface 20a (for example, LED modules M11 to M14), A plurality of the light emitting surfaces 20a may be arranged in the vertical direction (for example, LED modules M11 to M31).

Thereby, a plurality of stereoscopic images can be displayed in a direction parallel to the horizontal direction on the light emitting surface 20a, and a plurality of stereoscopic images can also be displayed in a direction parallel to the vertical direction on the light emitting surface 20a. For this reason, a stereoscopic image can be displayed in multiple viewpoints over a wide range.

As described above, the stereoscopic image display device 1 displays one stereoscopic image by the four LED modules M adjacent in the horizontal direction and the three LED modules M adjacent in the vertical direction. The directions in which image pixels are arranged are the X direction and the Y direction.

Therefore, the pixel pitch PP _X, in the shutter pitch SP _X is smaller towards the shutter pitch SP _X, further, a pixel pitch PP _Y, in the shutter pitch SP _Y, the smaller the shutter pitch SP _Y.

[Embodiment 2]
Next, the configuration of the stereoscopic image display apparatus 4 according to the second embodiment will be described with reference to FIGS. 17 and 18A and 18B. For convenience of explanation, members having the same functions as those in the drawings described in the first embodiment are given the same reference numerals, and descriptions thereof are omitted.

FIG. 17 is a perspective view showing the configuration of the stereoscopic image display device 4 according to the present embodiment.

As shown in FIG. 17, the stereoscopic image display device 4 is different from the stereoscopic image display device 1 in that a shutter device 40 is provided instead of the shutter device 30. Other configurations of the stereoscopic image display device 4 are the same as those of the stereoscopic image display device 1.

The shutter device 30 described in the first embodiment is a liquid crystal panel. On the other hand, the shutter device 40 according to the present embodiment is not a liquid crystal panel but a MEMS shutter panel.

18A is a plan view showing a part of the pixel configuration of the shutter device 40, and FIG. 18B is a diagram for explaining the operation of the MEMS shutter.

The shutter device 40 has a plurality of pixels (shutter elements) PXM arranged in a matrix.

The pixel PXM of the shutter device 40 includes a MEMS shutter SH, a support column 43, and a MEMS shutter SH provided on the substrate 45 provided with the opening and slidable on the surface of the substrate 45. A spring portion 42 and an electrode portion 41 are provided for sliding movement.

The MEMS shutter SH can be slid in the direction of the arrow shown in FIG.

The LED display disposed on the back side of the shutter device 40 by sliding the MEMS shutter SH by electrostatic force so that the opening provided in the substrate 45 of the pixel PXM and the opening of the MEMS shutter 45 overlap each other. Light emitted from the LED module M of the device 20 passes through the pixel PXM. That is, the pixel PXM is in a transmissive state.

On the other hand, the LED display device 20 disposed on the back side of the shutter device 40 by sliding the MEMS shutter SH by electrostatic force so that the substrate 45 is disposed in the opening of the MEMS shutter 45 when viewed in plan. The light emitted from the LED module M is blocked by the pixel PXM. That is, the pixel PXM is in a light shielding state.

Since the shutter device 40 operates (slides) the MEMS shutter SH with electrostatic force in this manner, the switching between the transmission state and the light shielding state of the pixel PXM can be performed faster than the liquid crystal cell SL.

The pitch of the pixels PXM, when displaying a stereoscopic image with horizontal viewpoint by the stereoscopic image display apparatus 4 is made smaller than the pixel PP _X is the pitch in the X direction of the LED module M pitches in the X direction of the pixel PXM, stereoscopic When the image display device 4 displays a stereoscopic image from a vertical viewpoint, the pitch of the pixels PXM in the Y direction is set smaller than the pixel PP _Y that is the pitch of the LED modules M in the Y direction.

Also, when displaying a stereoscopic image with horizontal and vertical viewpoint by the stereoscopic image display apparatus 4 is made smaller than the pixel PP _X is a X direction pitches of the LED module M in the X direction of the pixel PXM, and the pixel PXM The pitch in the Y direction is made smaller than the pixel PP _Y that is the pitch in the Y direction of the LED module M.

This makes it possible to prevent crosstalk between the viewpoints when displaying a stereoscopic image from multiple viewpoints.

Furthermore, since the stereoscopic image display device 4 transmits the emitted light of the LED module M through the opening of the pixel PXM and displays a stereoscopic image, the transmittance is higher than when the liquid crystal cell SL functions as a shutter. .

For this reason, according to the stereoscopic image display device 4, the number of viewpoints is larger, flickering is suppressed, and a stereoscopic image can be displayed with high luminance.

[Embodiment 3]
Next, a third embodiment will be described with reference to FIGS. For convenience of explanation, members having the same functions as those in the drawings described in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted.

FIG. 19 is a perspective view showing the configuration of the stereoscopic image display device 5 according to the present embodiment.

As shown in FIG. 19, the stereoscopic image display device 5 is different from the stereoscopic image display device 1 in that a shutter device 50 is provided instead of the shutter device 30. Other configurations of the stereoscopic image display device 5 are the same as those of the stereoscopic image display device 1.

The shutter device 30 described in the first embodiment is a liquid crystal panel. On the other hand, the shutter device 50 according to the present embodiment is not a liquid crystal panel but an EW (electrowetting) shutter panel.

20A is a plan view illustrating the configuration of the pixel PXE of the shutter device 50 in the transmissive state, and FIG. 20B is a cross-sectional view illustrating the configuration of the pixel PXE.

21A is a plan view illustrating the configuration of the pixel PXE of the shutter device 50 in a light-shielding state, and FIG. 21B is a cross-sectional view illustrating the configuration of the pixel PXE.

The shutter device 50 has a plurality of pixels PXE arranged in a matrix.

The shutter device 50 includes a nonpolar solution 52 sealed in a region partitioned as a pixel (shutter element) PXE between the substrate 54 a and the substrate 54 b and a polar solution, and slides in the nonpolar solution 52. And a shutter EWSH. The polar solution is made of a material that blocks light.

A light shielding member 56 having an opening 51 is disposed on the surface of the substrate 54a facing the substrate 54b. In the pixel PXE, a region where the opening 51 is formed is a transmission portion. Further, in the pixel PXE, a region where the light shielding member 56 is formed is a light shielding portion.

The nonpolar solution 52 is arranged between the nonpolar solution 52 and the electrodes 53a and 53b arranged in parallel in the layer between the light shielding member 56 and the nonpolar solution 52 and the substrate 54b. It is sandwiched between the electrodes 53c. The electrode 53a is disposed so as to cover the opening 51, and the electrode 53b is juxtaposed with the electrode 53a in the pixel PXE.

In order to make the pixel PXE in a transmissive state, a voltage is applied between the electrode 53c and the electrode 53a. Then, the shutter EWSH, which is a polar electrode, moves between the electrode 53c and the electrode 53b. As a result, the pixel PXE is in a transmissive state, and light emitted from the LED module M (arrow 55 in FIG. 20B) disposed on the back side of the substrate 54a is transmitted through the opening 51.

On the other hand, in order to put the pixel PXE into a light shielding state, a voltage is applied between the electrode 53c and the electrode 53b (arrow 56 in FIG. 21B). Then, the shutter EWSH, which is a polar electrode, moves between the electrode 53c and the electrode 53a. Accordingly, the shutter EWSH covers the opening 51, and the pixel PXE is in a light shielding state. As a result, light emitted from the LED module M arranged on the back side of the substrate 54a (arrow 55 in FIG. 21B) is shielded by the shutter EWSH.

Thus, since the shutter device 50 which is an electrowetting panel transmits the light emitted from the LED module M through the opening 51, the transmittance is higher than that in the case where the shutter is configured by a liquid crystal panel.

For this reason, according to the stereoscopic image display device 5, since the shutter device 50 is configured by an electrowetting panel, the transmittance is higher and the number of viewpoints is larger than when the shutter device is configured by a liquid crystal panel. But it can be displayed with high brightness.

As for the pitch of the pixel PXE, when a stereoscopic image is displayed from the horizontal viewpoint by the stereoscopic image display device 5, the pitch of the pixel PXE in the X direction is smaller than the pixel PP _X that is the pitch of the LED module M in the X direction. When the stereoscopic image display device 5 displays a stereoscopic image from a vertical viewpoint, the pitch of the pixels PXE in the Y direction is made smaller than the pixel PP _Y that is the pitch in the Y direction of the LED module M.

Also, when displaying a stereoscopic image with horizontal and vertical viewpoint by the stereoscopic image display device 5, and less than the pixel PP _X is a X direction of the pitch of the LED module M pitches in the X direction of the pixel PXE, and the pixel PXE The pitch in the Y direction is made smaller than the pixel PP _Y that is the pitch in the Y direction of the LED module M.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

As described above, the stereoscopic image display device of the present invention is a stereoscopic image display device capable of displaying a stereoscopic image in multiple directions, and includes a display device in which pixels are arranged in a matrix, a transmission state, and a light shielding state. Are arranged in a matrix, and includes a shutter device disposed opposite to the light emitting surface of the display device, and at least of the directions in which the pixels and the shutter are disposed. In one direction, the shutter pitch of the shutter element is smaller than the pixel pitch of the pixel.

The display device preferably includes a self-luminous element in the pixel. With the above configuration, a stereoscopic image display device that displays a stereoscopic image with high luminance can be obtained.

A stereoscopic image pixel that displays one stereoscopic image is composed of a plurality of the pixels arranged adjacent to each other, and the shutter element includes a plurality of pixels that constitute the stereoscopic image pixel. The pixel pitch in the direction in which a plurality of pixels constituting the stereoscopic image pixel are arranged and the shutter pitch in the direction in which the shutter elements are arranged are arranged in parallel with the direction in which the pixels are arranged. It is preferable that this is smaller.

According to the above configuration, the stereoscopic image pixel for displaying one stereoscopic image is composed of the plurality of pixels arranged adjacent to each other. A stereoscopic image can be displayed as a pixel.

The shutter elements are arranged in parallel in a direction in which a plurality of pixels constituting the stereoscopic image pixels are arranged, and a pixel pitch in a direction in which the plurality of pixels constituting the stereoscopic image pixels are arranged. The shutter pitch is smaller than the shutter pitch in the direction in which the shutter elements are arranged. Thereby, since the color mixture of the light radiate | emitted from each of the some pixel which comprises the pixel for the said stereo image can be suppressed, crosstalk can be prevented.

Further, the shutter device is provided with a transmissive portion configured by transmitting one or a plurality of adjacent shutter elements that are opposed to the pixel to be in a transmissive state, and the stereoscopic image pixel. It is preferable that the length of the transmissive portion in the direction in which the plurality of pixels constituting the stereoscopic image pixel are arranged is shorter than the length of the pixel in the direction in which the plurality of pixels constituting the pixel are arranged.

According to the above configuration, the light emitted from the pixel can be narrowed down by the transmission portion. Thereby, crosstalk can be reliably prevented.

In addition, one stereoscopic image is composed of a plurality of frames that are displayed in order, and each of the plurality of frames includes a pixel that is different from one another among the plurality of pixels that constitute the pixel for the stereoscopic image. Preferably it is displayed.

According to the above configuration, each of the plurality of frames is displayed as a pixel that is different from one another among the plurality of pixels constituting the pixel for the stereoscopic image, so that a stereoscopic image can be displayed in multiple directions. it can.

The transmissive portion is formed by a shutter element arranged at a position facing any one of the plurality of pixels constituting the stereoscopic image pixel, and the transmissive portion is provided for each frame. In addition, it is preferable that the plurality of pixels constituting the stereoscopic image pixel are sequentially moved so as to face any one of the different pixels.

According to the above configuration, the transmission unit sequentially moves so as to face any of the different pixels among the plurality of pixels constituting the stereoscopic image pixel for each frame. Light emitted from each of the plurality of pixels constituting the light passes through the transmission part and is emitted in different directions. Thereby, a three-dimensional image can be displayed in multiple directions.

In addition, it is preferable that the plurality of pixels constituting the stereoscopic image pixels are arranged in a line in the horizontal direction on the light emitting surface. According to the above configuration, a plurality of stereoscopic images can be displayed in a direction parallel to the horizontal direction on the light emitting surface.

Further, it is preferable that the plurality of pixels constituting the stereoscopic image pixels are arranged in a line in the vertical direction on the light emitting surface. According to the above configuration, a plurality of stereoscopic images can be displayed in a direction parallel to the vertical direction on the light emitting surface.

The plurality of pixels constituting the stereoscopic image pixel are arranged in a row in the horizontal direction on the light emitting surface and arranged in a plurality in the vertical direction on the light emitting surface. Is preferred. According to the above configuration, a plurality of stereoscopic images can be displayed in a direction parallel to the horizontal direction on the light emitting surface, and a plurality of stereoscopic images can be displayed in a direction parallel to the vertical direction on the light emitting surface. For this reason, a stereoscopic image can be displayed in multiple viewpoints over a wide range.

The display device is preferably an LED display. According to the above configuration, it is possible to obtain a stereoscopic image display device that has high luminance and can be driven at a high frequency. As a result, a stereoscopic image display device in which crosstalk is suppressed can be obtained.

The shutter device is preferably a liquid crystal panel. With the above configuration, a high-performance stereoscopic image display device can be configured at low cost.

Further, the shutter device may be a MEMS shutter panel. With the above configuration, it is possible to obtain a stereoscopic image display device that has high luminance and can be driven at a high frequency. As a result, a stereoscopic image display device in which crosstalk is suppressed can be obtained.

The shutter device may be an electrowetting panel. Since a high-luminance stereoscopic image display device can be obtained with the above configuration, a stereoscopic image display device in which crosstalk is suppressed can be obtained.

The present invention can be used in a display device that displays a stereoscopic image.

DESCRIPTION OF SYMBOLS 1 Stereoscopic image display apparatus 4 Stereoscopic image display apparatus 5 Stereoscopic image display apparatus 10 Control part 20 LED display apparatus (display apparatus)
30 Shutter device 31 Shutter array unit 40 Shutter device 45 MEMS shutter 50 Shutter device AX1, AX2, AX3, AX4, AX5 Viewpoint D Stereo image DA / DB / DC / DD / DE Frame EWSH Shutter M LED module PP Pixel pitch SP Shutter pitch SL Liquid crystal cell (shutter element)
PXM pixel (shutter element)
PXE pixel (shutter element)
R / G / B LED (Self-emitting element)

Claims

A stereoscopic image display device capable of displaying a stereoscopic image in multiple directions,
A display device in which pixels are arranged in a matrix;
Shutter elements that can be switched between a transmissive state and a light-shielded state are arranged in a matrix, and include a shutter device that is disposed to face the light emitting surface of the display device,
A stereoscopic image display device, wherein a shutter pitch of the shutter element is smaller than a pixel pitch of the pixel in at least one direction among directions in which the pixel and the shutter element are arranged.
The stereoscopic image display device according to claim 1, wherein the display device includes a self-luminous element in the pixel.
The stereoscopic image pixels that display one stereoscopic image are:
It is composed of a plurality of the pixels arranged adjacent to each other,
The shutter elements are arranged in parallel in a direction in which a plurality of pixels constituting the pixels for the stereoscopic image are arranged,
A pixel pitch in a direction in which a plurality of pixels constituting the stereoscopic image pixel are arranged;
The stereoscopic image display device according to claim 1, wherein the shutter pitch is smaller than a shutter pitch in a direction in which the shutter elements are arranged.
The shutter device is provided with a transmissive portion configured such that one or a plurality of adjacent shutter elements arranged to face the pixel are in a transmissive state,
The length of the transmission part in the direction in which the plurality of pixels constituting the stereoscopic image pixel is arranged is shorter than the length of the pixel in the direction in which the plurality of pixels constituting the stereoscopic image pixel are arranged. The stereoscopic image display apparatus according to claim 3, wherein
One stereoscopic image is composed of a plurality of frames displayed in order,
Each of the plurality of frames is
5. The stereoscopic image display device according to claim 4, wherein among the plurality of pixels constituting the stereoscopic image pixel, different pixels are displayed as one pixel.
The transmissive portion is formed by a shutter element arranged at a position facing any one of a plurality of pixels constituting the stereoscopic image pixel,
The stereoscopic image display according to claim 5, wherein the transmission unit sequentially moves so as to face any one of different pixels among a plurality of pixels constituting the stereoscopic image pixel for each frame. apparatus.
The stereoscopic image display device according to claim 6, wherein the plurality of pixels constituting the stereoscopic image pixels are arranged in a line in a horizontal direction on the light emitting surface.
The stereoscopic image display device according to claim 6, wherein the plurality of pixels constituting the stereoscopic image pixels are arranged in a line in a vertical direction on the light emitting surface.
A plurality of pixels constituting the three-dimensional image pixels are arranged in a row in the horizontal direction on the light emitting surface, and a plurality of pixels are arranged in the vertical direction on the light emitting surface. The stereoscopic image display device according to claim 6.
The stereoscopic image display device according to any one of claims 2 to 9, wherein the display device is an LED display.
11. The three-dimensional image display device according to claim 1, wherein the shutter device is a liquid crystal panel.
11. The stereoscopic image display device according to claim 1, wherein the shutter device is a MEMS shutter panel.
The three-dimensional image display device according to any one of claims 1 to 10, wherein the shutter device is an electrowetting panel.