WO2014131230A1

WO2014131230A1 - Image collection device and 3d display system

Info

Publication number: WO2014131230A1
Application number: PCT/CN2013/074372
Authority: WO
Inventors: 秦广奎
Original assignee: 京东方科技集团股份有限公司
Priority date: 2013-02-28
Filing date: 2013-04-18
Publication date: 2014-09-04
Also published as: CN203522943U; CN103442240A; CN103149696A

Abstract

Disclosed are an image collection device and a 3D display system. The 3D display system comprises an image display device. The image display device receives image data and displays an image corresponding to the received image data, wherein the image display device comprises: a display panel and a focal distance adjustment lens layer formed at a light-emitting side of the display panel, and the image data comprises: image feature data and objective image distance data.

Description

Image acquisition device and 3D display system

Embodiments of the present invention relate to an image capture device and a 3D display system. Background technique

The 3D (three dimension) display is a pair of "stereoscopic image pairs" that allow the viewer's left and right eyes to see "binocular parallax". Based on the binocular parallax principle, the viewer can view a three-dimensional stereoscopic image that produces a 3D effect. The current 3D display technology can be mainly divided into a mirror type and a eye type.

The current eye 3D technology mainly includes: Barrier, Lenticular Lens technology and Directional Backlight. The light barrier type 3D display technology is divided into a front type and a rear type according to the position of the parallax barrier relative to the 2D display screen, and the left and right eye images displayed on the 2D display screen respectively enter the observer's left and right eyes by using the parallax barrier, and The left and right eye images are separated, allowing the viewer to see the 3D image. The lenticular lens 3D technology is to add a columnar lens in front of the 2D display screen, so that the human eyes can view the display screen at different angles, and the left and right eyes respectively receive two different 2D images, and the human brain receives the left and right eyes to see Different 2D images are perceived as 3D images. However, in the above-mentioned three-eye display technology, there are defects such as limitations in resolution, viewing angle, and visible distance, and people may feel dizzy when watching, and are restricted by the viewing distance, so that viewing 3D images. There are many inconveniences. Summary of the invention

Embodiments of the present invention provide an image capture device and a 3D display system, which are different from the existing light barrier type 3D display technology and lenticular lens 3D technology, and the 3D display system can be realized without using a parallax barrier or a lenticular lens. The eye 3D display can eliminate the stun feeling when viewing 3D images and is not limited by the viewing distance.

Embodiments of the present invention provide an image capture device for acquiring image data, wherein the image data includes image feature data and object image distance data.

Alternatively, the image acquisition device comprises an image feature data collection device and an object image distance data acquisition device. Alternatively, the image feature data collection device comprises: a camera or a camera.

Alternatively, the object image distance data acquisition device comprises: a laser pulse scanner or an ultrasonic pulse scanner or an infrared scanner.

Embodiments of the present invention also provide a 3D display system including an image display device that receives image data and displays an image corresponding to the image data, wherein the image display device includes: a display panel and is formed in the a focus adjustment lens layer on the light exit side of the display panel, the image data comprising: image feature data and object image distance data.

Alternatively, the image data received by the image display device is image data processed by the image processing device to be suitable for display by the image display device.

Alternatively, the image processing device receives image data provided by the image capture device or other image capture device as described above, and processes to obtain image data suitable for display by the image display device.

Alternatively, the display system further includes an image capture device that captures image data that is provided to the image processing device.

Alternatively, the 3D display system further includes an image acquisition device, the image acquisition device comprising: an image feature data collection device and an object image distance data acquisition device.

Alternatively, the image feature data collection device comprises: a camera or a camera.

Alternatively, the object image distance data collecting device comprises: a laser pulse scanner or an ultrasonic pulse scanner or an infrared scanner.

Alternatively, the focus adjustment lens layer comprises a plurality of microlenses.

Alternatively, the microlens includes: a first substrate, a first electrode layer, a cavity, a second electrode layer, a second substrate, and a liquid crystal filled with the cavity, which are sequentially formed.

Alternatively, one of the first electrode layer and the second electrode layer is an electrode layer providing a uniform voltage, and the other electrode layer is an electrode layer having a voltage difference from an electrode layer providing a uniform voltage.

Alternatively, the microlens has a switching element that is connected to the electrode layer having a voltage difference from an electrode layer that provides a uniform voltage.

Alternatively, the microlens adjusts the focal length by switching the operating state by the switching element and controlling the voltage magnitude by a data signal.

Alternatively, each of the plurality of microlenses corresponds to each pixel of the display panel. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, rather than to the present invention. limit.

1 is a schematic diagram of an image capture device in accordance with an embodiment of the present invention;

2 is a block diagram of a 3D display system in accordance with an embodiment of the present invention;

3 is a schematic diagram showing the operation of an image display device of a 3D display system according to an embodiment of the present invention; and FIGS. 4a to 4b are schematic views showing the internal structure of a microlens in a 3D display system according to an embodiment of the present invention;

Fig. 5 is a schematic plan view showing the structure of a microlens in a 3D display system according to an embodiment of the present invention. detailed description

The technical solutions of the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings of the embodiments of the present invention. It is apparent that the described embodiments are part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without departing from the scope of the invention are within the scope of the invention.

Example 1

Embodiments of the present invention provide an image capture device. Referring to Figure 1, there is shown an image capture device in accordance with an embodiment of the present invention. As shown in Fig. 1, the image pickup device 1 includes: an image feature data collecting device 21 and an object image distance data collecting device 22. The image feature data includes: RGB (red, green, and blue) values of each image pixel; the object image distance data is the distance data of the image pixel corresponding to the image of the real scene formed in the image capturing device. Therefore, the data collected by the entire image acquisition device 1 of the embodiment of the present invention is matrix data according to pixel distribution, and the matrix data of each pixel is four-dimensional, that is, (R/G/B/Z), wherein the color represented by RGB And the brightness characteristic, Z represents the object image distance. The image pickup device of the embodiment of the present invention differs from the prior art image capture device in that an embodiment of the present invention collects an object image distance data as compared with the conventional image data acquisition.

The image feature data collecting device 21 includes: a camera or a camera. Object image distance The acquisition device 22 includes: a laser pulse scanner or an ultrasonic pulse scanner or an infrared scanner. Taking the laser pulse scanner as an example, the process of collecting the object image distance data by the laser pulse scanner is: Since each pixel corresponds to a different spatial azimuth angle, the laser pulse scanner scans each orientation of the real scene to which the image data is to be acquired, And calculating, according to the response time of the image of the real scene collected by the image pixel corresponding to the real image to the image capturing device, the image distance data is calculated according to the laser pulse scanner. Using an ultrasonic pulse scanner or an infrared scanner to obtain the image distance data works similarly. Of course, other methods can also be used. The only purpose here is to collect the object image distance data, as long as it can achieve this purpose, any kind. The way is fine.

The image data collected by the image acquisition device according to the embodiment of the present invention may be provided to any display system as long as the display system can process the image data to display an image corresponding to the image data; or, the image collection according to an embodiment of the present invention The image data collected by the device can be provided to any image processing device, and the image data processed by the image processing device can be provided to any display device, as long as the image processing device can process the image data and the display device can display the image data. The corresponding image can be.

Example 2

As shown in Fig. 2, the present embodiment provides a 3D display system 4 including an image display device 3 that receives image data and displays an image corresponding to the image data. The image data received therein includes: image feature data and object image distance data; the image display device 3 includes: a display panel and a focus adjustment lens layer formed on a light exiting side of the display panel.

Alternatively, the image display device 3 of the 3D display system of the embodiment of the present invention receives the data processed by the external image processing device, and displays the corresponding image, the external image processing device is the image feature data and the object image distance data. Processing and obtaining image data suitable for display by the image display device of the embodiment of the present invention, and the external image processing device can receive image data collected by the image capturing device according to Embodiment 1 of the present invention or receive other image capturing device The image data is provided as long as the image data includes object distance data other than the RGB values for each pixel.

As shown in FIG. 3, an image display device 3 according to an embodiment of the present invention includes: a display panel 31 and a focus adjustment lens layer 32 formed on a light exit side of the display panel 31, the focus adjustment lens layer 32 including a plurality of microlenses 321; The main function of the display panel is to display a 2D planar image. The light emitted by the display panel, all of the light-emitting points are on one plane of the display panel. In the embodiment of the present invention, after the light 102 emitted from the display panel 31 is transmitted through the black matrix 33 formed on the display panel 31, the image distance of the pixel 34 is adjusted by the microlens 321 in the adjustable focal length adjusting lens layer 32. According to the imaging formula 丄+丄=丄, where s is the object distance, s is the image distance, f is the focal length of the lens, here,

s s' f

The distance between the display panel 31 and the microlens 321 is the object distance, so we can adjust the required image distance s by adjusting the focal length f of the microlens, that is, s'= . And the required image distance is based on the image

s - f

The object image distance data Z acquired during the image data acquisition process received by the processing device is obtained by processing the image feature data and the object image distance data by the image processing device. That is, when viewing an image displayed by the image display device according to the embodiment of the present invention, the light-emitting point of the pixel seen by the human eye is hierarchical, that is, in the image display device of the embodiment of the present invention, the plane The light 102 emitted by the pixel point 34 in the image is adjusted by the microlens 321 corresponding to the pixel in the focus adjustment lens layer 32. The microlens 321 is adjusted in accordance with the object distance data in the image data acquired by the image pickup device when adjusting the focal length. As shown in FIG. 3, after adjustment, the light-emitting points 35 seen by the human eye are no longer in the same display plane, thus, unlike the existing light barrier type 3D display technology and the lenticular lens 3D technology, without using the parallax barrier, A lenticular lens or the like realizes a 3D display of the eye, and can eliminate the stun feeling when viewing the 3D image without being restricted by the viewing distance.

As shown in FIG. 4a to FIG. 4b, the microlens 321 includes: a first substrate 3213, a first electrode layer 3214, a cavity 3212, a second electrode layer 3215, a second substrate 3211, and a cavity formed in this order. The liquid crystal 39 is filled in 3212. One of the first electrode layer 3214 and the second electrode layer 3215 is an electrode layer that provides a uniform voltage, and the other electrode layer is an electrode layer that has a voltage difference from an electrode layer that provides a uniform voltage. In the embodiment of the present invention, the cavity 3212 is a hemispherical or semi-ellipsoidal shape, and those skilled in the art can change the shape of the cavity as needed, and are not limited by the shape of the cavity disclosed in the embodiments of the present invention. The microlens 321 has a switching element 40 (here, the switching element 40 may be a Thin Film Transister, a cartridge called a TFT; or other device capable of reaching a switching element), and the switching element 40 is connected to and provides a uniform voltage. The electrode layer has an electrode layer of a voltage difference and can control the magnitude of the voltage supplied to the electrode layer. The microlens 321 switches the operating state by the switching element 40 and adjusts the focal length by controlling the magnitude of the voltage. Illustratively, taking the switching element 40 as a TFT, the source or the drain of the switching element 40 is connected to an electrode layer of the microlens 321 having a voltage difference from an electrode layer providing a uniform voltage, the switching element 40 The other of the source and the drain is connected to the data signal line, the gate of the switching element 40 is connected to the gate line, and when the switching element 50 is turned on to select the microlens 321 connected thereto, the data signal passes through the lens 321 The source or the drain is applied to the electrode layer of the lens 321 having a voltage difference from the electrode layer providing the uniform voltage, thereby adjusting the focal length of the microlens 321 to the required focal length calculated according to the above calculation, thereby adjusting the image distance. For other types of switching elements, the operation process depends on the specific situation as long as the operation state of the corresponding microlens can be converted and the magnitude of the voltage applied to the microlens can be adjusted.

Illustratively, the lens works as follows:

Referring to FIGS. 4a, 4b and 5, when the switching element 40 is turned off, the microlens 321 is in an unpowered state, and the refractive index of the liquid crystal material is equal to the refractive index of the cavity material in contact therewith, The role of the lens. When the switching element 40 is turned on, the data signal 41 is supplied to the electrode layer of the microlens 321 having a voltage difference from the electrode layer providing the uniform voltage, thereby achieving the purpose of the microlens. At the same time, according to the different data signals 41 provided, microlenses with different focal lengths can be obtained. As shown in FIG. 3, after the microlens adjustment, the light-emitting points 35 seen by the human eye are no longer in the same display plane, thus achieving The eye 3D display. The focal length of the microlens 321 is determined by the refractive index of the liquid crystal material filled in the cavity 3212, and the refractive index of the liquid crystal is changed, and different refractive indices may correspond to different focal lengths. The refractive index of the liquid crystal can be changed by the voltage applied thereto, so that the focal length of the microlens can be changed by changing the voltage applied to the electrode layer, thereby achieving the purpose of changing the focus within a certain range.

The microlens 321 in the embodiment of the present invention is two-dimensional, not one-dimensional (one-dimensional lens is strip-shaped), and each microlens 321 has a switching element 40, and the switch not only converts the working state of the microlens, and The magnitude of the voltage is controlled by the data signal 41 to adjust the focal length of the microlens, such that each microlens 321 according to an embodiment of the present invention can not only achieve on and off, but also achieve control over the magnitude of the data signal applied thereto. The adjustment of the focal length is such that with the adjusted microlens, the light-emitting points 35 seen by the human eye are no longer in the same display plane; again, since each microlens 321 has a switching element respectively, all the microlenses 321 are not uniformly controlled. (that is, the microlens 321 of the present invention is not all turned on if turned on, and all turned off if turned off), but is separately controlled separately, thus, unlike the existing light barrier type 3D display technology and lenticular lens 3D technology The 3D display of the eye can be realized without using the parallax barrier, the lenticular lens, etc., and the vertigo feeling can be eliminated when viewing the 3D image, and is not limited by the viewing distance.

Illustratively, the display panel according to an embodiment of the present invention may be any product or component having a display function such as a liquid crystal panel, an electronic ink display panel, an OLED panel, a plasma display panel, or the like.

If the display panel is a liquid crystal panel, the specific structure is: the TFT array substrate and the opposite substrate are opposed to each other to form a liquid crystal cell, and the liquid crystal cell is filled with a liquid crystal material. The counter substrate is, for example, a color filter substrate. The pixel electrode of each pixel unit of the TFT array substrate is used to apply an electric field to control the degree of rotation of the liquid crystal material to perform a display operation. In some illustrative examples, the liquid crystal display further includes a backlight that provides backlighting for the array substrate.

If the display panel is an OLED panel, alternatively, each of the pixel units of the TFT array substrate, the 3D display system of the embodiment of the present invention may also include an image processing apparatus that receives image data and processes it to fit Displayed on the image display device.

In addition, an embodiment of the present invention further provides a display system that integrates an image capture device, an image processing device, and an image display device, such that the display system has both an image capture device and an image display function, and The display system may display image data provided from the outside, or directly display image data acquired by the image acquisition device of the display system, wherein the image acquisition device included in the display system and the image acquisition device according to Embodiment 1 of the present invention It is identical, and its image processing apparatus and image display apparatus are also identical to the image processing apparatus and the image display apparatus according to the embodiment of the present invention, and the description thereof will not be repeated here.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the scope of the invention, and various modifications and changes can be made without departing from the spirit and scope of the invention. Equivalent technical solutions are also within the scope of the invention, and the scope of the invention is defined by the claims.

Claims

Claim

I. An image acquisition device for acquiring image data, wherein the image data comprises image feature data and object distance data.

The image capture device of claim 1, wherein the image capture device comprises an image feature data acquisition device and an object image distance data acquisition device.

3. The image capture device of claim 2, wherein the image feature data collection device comprises: a camera or a camera.

4. The image capture device of claim 2, wherein the object image distance data acquisition device comprises: a laser pulse scanner or an ultrasonic pulse scanner or an infrared scanner.

5. A 3D display system, comprising:

An image display device that displays an image corresponding to the received image data,

Wherein the image display device includes: a display panel and a focus adjustment lens layer formed on a light exiting side of the display panel,

The image data includes: image feature data and object image distance data.

6. The 3D display system according to claim 5, wherein the image data received by the image display device is image data processed by the image processing device to be suitable for display by the image display device.

7. The 3D display system according to claim 6, wherein the image processing device receives image data provided by the image acquisition device according to any one of claims 1 to 4 or other image acquisition device, and performs processing To obtain image data suitable for display by the image display device.

8. The 3D display system of claim 6, wherein the display system further comprises an image acquisition device that captures image data, the image data being provided to the image processing device.

9. The 3D display system of claim 8, wherein the image acquisition device comprises an image feature data collection device and an object image distance data acquisition device.

10. The 3D display system of claim 9, wherein the image feature data acquisition device comprises: a camera or a camera.

II. The 3D display system according to claim 9, wherein the object image distance data collecting device comprises: a laser pulse scanner or an ultrasonic pulse scanner or an infrared scanner.

12. The 3D display system of claim 5, wherein the focus adjustment lens layer comprises a plurality of lenses.

13. The 3D display system of claim 12, wherein each of the plurality of microlenses comprises: a first substrate, a first electrode layer, a cavity, a second electrode layer, a second substrate, and a plurality of sequentially formed The liquid crystal of the cavity.

14. The 3D display system according to claim 13, wherein one of the first electrode layer and the second electrode layer is an electrode layer that provides a uniform voltage, and the other electrode layer is provided with a uniform voltage. The electrode layer has an electrode layer with a voltage difference.

The 3D display system according to claim 14, wherein each of the plurality of microlenses has a switching element connected to an electrode layer having a voltage difference from an electrode layer that supplies a uniform voltage.

16. The 3D display system according to claim 15, wherein each of the plurality of microlenses adjusts a focal length of the microlens by switching an operating state by the switching element and controlling a voltage magnitude by a data signal.

17. The 3D display system of any of claims 12-16, wherein each of the plurality of micro-lenses corresponds to each pixel of the display panel.