TWM512147U - Display device - Google Patents

Abstract

A display device comprises a display panel, a first light source module, and a second light source module. The display panel has a display surface. The first light source module is disposed on one side of the display panel opposite to the display surface, comprising a first region and a second region. Wherein the first light source module outputs a first backlight on the first region, and allows an ambient light in back of the second region to pass through the second region to display on the display surface. The second light source module is disposed corresponding to the second region disposed between the second light source module and the display panel. Wherein the second light source module allows the ambient light in back of the second region to pass through the second light source module and the second region to display on the display surface. The second light source module can selectively output a second backlight into the second region.

Description

Display device

This creation relates to a display device. In particular, it is in particular an at least partially see-through display device.

In recent years, flat display devices have been widely used in various fields, and can be used alone as displays or embedded in electronic devices for information display. There are many types of flat display devices, such as organic light-emitting diode displays, liquid crystal displays, electrophoretic displays, etc. Among them, liquid crystal displays are currently the most common flat display devices.

In the conventional liquid crystal display device, only the display of the image is provided, and the rear view cannot be seen through the display device. However, in the recent development direction, in order to meet the needs of specific use, there has been a display device with a see-through perspective. Nowadays, the liquid crystal display device can be provided with a see-through range and a display range in the display area. In order to display images or information in the display range, it is necessary to provide a backlight behind the display range, and then the liquid crystal layer controls the degree of backlight penetration. Produce images or information. The backlight can pass through the light guide plate and pass through the liquid crystal layer, which is caused by the total reflection of the light destroyed by the microstructure on the light guide plate. Therefore, in order to display images or information in the perspective range, the light guide plate in the perspective range must also have a microstructure, but this will affect the transparency in the perspective range, and it is impossible to see the rear scene through the perspective range. . Conversely, when the light guide plate in the see-through range is not provided with a microstructure, the transparency effect is There is a significant drop in the image display effect of the perspective range and the display effect of the display range, resulting in visual inconsistency.

One of the aims of the present invention is to provide a display device that allows a see-through area on the display surface and other areas to have a closer display effect.

Another object of the present invention is to provide a display device which can reduce the influence of the transparency of the light guide plate on the transparency of the see-through region.

The display device includes a display panel, a first light source module, and a second light source module. The display panel has a display surface. The first light source module is disposed on a side of the display panel opposite to the display surface, and includes a first area and a second area; wherein the first light source module outputs the first backlight in the first area and allows the environment behind the second area Light passes through the second area and is displayed on the display surface. The second light source module is disposed corresponding to the second area, and the second area is located between the second light source module and the display panel; wherein the second light source module allows the rear ambient light to pass through the second light source module and the second area And displayed on the display surface, and the second light source module can selectively output the second backlight into the second region.

Another display device provided by the present invention includes a display panel, a first light source module, a second light source module, and a scroll wheel. The first light source module is disposed on one side of the display panel, and the first light source module has a first light source and a first light guide plate, so that the first light source module can form a first backlight for the display panel, wherein the first light guide The light panel forms an opening. The second light source module is disposed on one side of the first light source module and corresponding to the opening, so that the first light source module is sandwiched between the display panel and the second light source module. The second light source module has a second light source and a second light guide plate, so that the second light source module forms a second backlight. The second light guide plate is made of glass or polymer material, and the surface of the second light guide plate has a nano-scale microstructure. The roller is disposed on one side of the second light source module, and the pair The vertical projections of the openings of the second light source module, the roller and the first light guide plate on the display panel overlap each other at the opening of the first light guide plate.

The advantages and spirit of the present invention can be further understood by the following embodiments and the drawings.

1‧‧‧ display device

11‧‧‧ display panel

12‧‧‧ Display surface

13‧‧‧First light source module

14‧‧‧First light guide

15‧‧‧First area

16‧‧‧Second area

17‧‧‧First light source

18‧‧‧Second light source module

19‧‧‧Second light guide

141‧‧‧dotted graphics

191‧‧‧Light switching components

2‧‧‧Display device

20‧‧‧second light source

21‧‧‧ display panel

22‧‧‧First light source module

23‧‧‧First light guide

24‧‧‧ openings

25‧‧‧First light source

26‧‧‧Second light source module

27‧‧‧Second light guide

28‧‧‧second light source

29‧‧‧Roller

F1‧‧‧Optical diaphragm

F2‧‧‧reflector

1A is an exploded view of an embodiment of the creation display device.

Figure 1B is a side elevational view of the embodiment of Figure 1A.

FIG. 2A is a schematic diagram of an embodiment of the creation display device.

FIG. 2B is a schematic diagram of another embodiment of the creation display device.

3 is an exploded view of another embodiment of the creation display device.

FIG. 4 is a schematic view showing the optical characteristics of the second light guide plate.

5A to 5C are schematic views of another embodiment of the creation display device.

FIG. 6 is a schematic diagram of another embodiment of the creative display device.

7A-7C are schematic views of another embodiment of the creation display device.

In the following, a plurality of embodiments of the present invention will be disclosed in the context of a textual description. For the sake of clarity, a number of practical details will be described in the following description. However, it should be understood that these practical details are not applied to limit the creation. In addition, well-known structures and elements are illustrated in the drawings in a

The present invention provides an electronic device and a display device used therefor. In a preferred embodiment, the electronic device may include a large game console, a vending machine, or a transparent display. An electronic device, and the display device included therein has a partially transparent function. However, in various embodiments, the electronic device may be other lighter devices such as portable or vehicle-mounted electronic devices, but the display device included therein still needs to have a partially transparent function.

1A and FIG. 1B, FIG. 1A is an exploded view of an embodiment of the creation display device, and FIG. 1B is a side view of the embodiment of FIG. 1A. The display device 1 includes a display panel 11 , a first light source module 13 , and a second light source module 18 . One side of the display panel 11 has a display surface 12 for generating an image to be displayed. The first light source module 13 is disposed on one side of the display panel 11 opposite to the display surface 12 , that is, the display surface 12 and the first light source module 13 are located on opposite sides of the display panel 11 . The first light source module 13 includes a first light guide plate 14 and a first light source 17 , and the first light guide plate 14 includes a first region 15 and a second region 16 . The first light source 17 may be a Light-Emitting Diode (LED) light bar, but is not limited thereto.

The second light source module 18 is disposed corresponding to the second region 16 of the first light guide plate 14 . The second region 16 is sandwiched between the display panel 11 and the second light source module 18 in a relative position. The second light source module 18 includes a second light guide plate 19 and a second light source 20, wherein a vertical projection range of the second light guide plate 19 on the first light guide plate 14 covers the second region 16, that is, the second light guide plate The area of 19 is greater than the second area 16. However, it should be understood that in other embodiments, the area of both may be the same. In this embodiment, the number of the second light guide plates 19 is set corresponding to the number of the second regions 16, however, in other embodiments, the second light guide plate 19 may also be in the form of a one piece, as long as the coverage is Two areas 16 can be. The second light source 20 may be a Light-Emitting Diode (LED) light bar, but is not limited thereto. The second light source module 18 allows the ambient light of the rear to be displayed on the display surface 12 through the second light source module 18 and the second region 16 .

In this embodiment, the bottom surface of the first light guide plate 14 has a dot pattern 141. The light in the first light guide plate 14 is totally reflected and transmitted to generate light, but in the range of the second region 16, there is no dot pattern or a dot pattern having a lower distribution density. The lower distribution density described in this embodiment means relative to the first area. For example, the spacing of the dot patterns in the second region 16 is relatively large compared to the dot pattern of the first region 15. Specifically, the dot patterns 141 of the first light guide plate 14 are all or mostly distributed in the first region 15 . According to this design, when the first light source 17 is lit, the first light source module 13 outputs a first backlight in the first region 15 and allows ambient light behind the second region 16 to pass through the second region 16 for display on the display. On the face 12. In other preferred embodiments, the second region 16 can be directly hollowed out to form a physical opening, and the same effect can be achieved.

It is worth mentioning that the second light source module 18 can selectively output the second backlight into the second region 16 . As shown in FIG. 2A , when the first light source 17 and the second light source 20 are not illuminated, the rear ambient light A is displayed on the display surface 12 through the second light source module 18 and the second region 16 . The scene behind the scene can be displayed on the display 12; otherwise, as shown in FIG. 2B, when the first light source 17 and the second light source 20 are illuminated, the second light source 20 has the effect of reinforcing the brightness of the image, thereby making The influence of the rear ambient light A is reduced, so that the rear scene is not presented on the display surface 12, that is, in this case, the rear scene does not interfere with the complete picture that the display surface 12 currently presents.

In the different embodiments, as shown in FIG. 3, the optical film F1 may be disposed between the display panel 11 and the first light source module 13. However, the optical film corresponds to the first optical module 13. The area of the second area 16 can be hollowed out or not provided with micro-structures for the rear ambient light to pass through. On the other hand, a reflective sheet F2 may be disposed between the first optical module 13 and the second optical module 18. Similarly, the portion of the reflective sheet corresponding to the second region 16 also needs to be hollowed out to form an opening.

In the embodiment of the present invention, the second light guide plate 19 is made of an etched glass. The special light guide plate preferably has a surface roughness of less than 50 nm and a transmittance of more than 90%. The microstructure under the design is not easily seen by the naked eye, and the transparent effect can be achieved. According to this design, as shown in FIG. 4, compared with the general light guide plate, an optical film is required to guide the light, and the second light guide plate 19 of the embodiment does not need to be matched with the optical film to achieve a central symmetric distribution. Achieve uniform light output from all angles of view. In another embodiment, the second light guide plate 19 can be a polymer material.

In another embodiment, the light switching element 191 can be disposed behind the second light source module 18. As shown in FIG. 5A, the light switching element 191 is disposed corresponding to the second region 16, and the second light source module 18 is located between the light switching element 191 and the display panel 11. The optical switching element 191 in this embodiment may be a polymer dispersed liquid crystal (PDLC) layer or a polymer network iqd crystal (PNLC) layer, but is not limited thereto. The optical switching element 191 (PDLC/PNLC) can form a light valve through the control voltage, thereby switching the penetration or blocking of the light, thereby controlling the penetration of the ambient light.

In an actual application, as shown in FIG. 5B, when the second light source module 18 does not output the second backlight, the light switching element 191 is turned on by the control voltage, and the light switching element 191 is in a light-transmissive state, and the environment behind. Light can enter the second region 16, that is, the rear scene can be displayed on the display surface 12.

On the other hand, as shown in FIG. 5C, when the second light source module 18 outputs the second backlight, the light switching element 191 is turned off by the control voltage, and the light switching element 191 may exhibit an opaque or near-matte surface. The rear ambient light is not allowed to enter the second area 16, that is, the rear scene is not displayed on the display surface 12.

In other embodiments, the optical switching component 191 can be combined with the first and second light source modules to further achieve the effect of the partition perspective. As shown in FIG. 6, the independently controlled second light source 20 Control of the zonal perspective is performed, wherein each of the second light sources 20 can be individually turned on or off. When the first light source module (not shown) and the second light source 20 are lit, the light switching element is turned off, and at this time, the light switching element blocks the ambient light passing through, and the rear scene is not displayed on the screen (slashed line) region). In this embodiment, the second light sources 20 are respectively disposed on the left and right sides of the second light guide plate. However, in other embodiments, it may be disposed above or below the second light guide plate, and is not particularly limited.

Conversely, when the first light source module (not shown) and the second light source 20 are turned off, the light switching element is turned on, and at this time, the light switching element will let the rear ambient light pass through, and the rear scene will be displayed on the screen. (An empty area).

In another embodiment of the present invention, as shown in FIG. 7A, the display device 2 includes a display panel 21, a first light source module 22, a second light source module 26, and a roller 29. The display device 2 can be an electronic game machine, and the scroll wheel 29 can be used as a winning number. The first light source module 22 is disposed on one side of the display panel 21 and opposite to the display surface (not shown). The first light source module 22 has a first light guide plate 23 and a first light source 25, so that the first light source module 22 The light source module 22 can form a first backlight for the display panel 11 , wherein the first light guide plate 23 is formed with an opening 24 . The opening 24 can be selected to be achieved by physical perforation. In another modification, the opening 24 is replaced by a portion of the first light guide plate 23 that is not partially covered.

The second light source module 26 is disposed on one side of the first light source module 22 away from the display panel 21 and corresponding to the opening 24 , so that the first light source module 22 is sandwiched between the display panel 11 and the second light source module 26 . . The second light source module 26 has a second light guide plate 27 and a second light source 28, and the second light source module 26 forms a second backlight. The roller 29 is disposed on a side of the second light source module 26 away from the display panel 21 and corresponding to the opening 24 of the first light guide plate 23, so that the second light source module 26 and the roller The vertical projections of the openings 24 on the display panel 21 with the openings 24 of the first light guide plate 23 overlap each other. In this embodiment, the inside of the roller 29 may include a light source to identify the pattern on the roller 29.

In detail, when the second light source 28 is not lit, the pattern on the rear roller 29 is displayed on the display surface of the display panel 21 through the second light source module 26 and the opening 24 through the included light source. A light source 25 can be selectively turned on or off. If the first light source 25 is turned off, only the pattern on the scroll wheel 29 is displayed on the screen; if the first light source 25 is turned on, other images on the display panel 21 corresponding to the opening 24 can simultaneously display other images, which can increase the diversity of the screen display. On the other hand, when the first light source 25 and the second light source 28 are turned on, the second light source 28 has the effect of reinforcing the brightness of the image, and the influence of the brightness emitted by the rear roller 29 is reduced. The graphic on the 29 is not visible on the display surface, that is, in this case, the rear roller 29 does not interfere with the complete picture currently presented by the display surface.

Similarly, the second light guide plate 27 is a glass material, specifically, an etched glass, and has a nano-scale microstructure on the surface thereof to achieve a transparent effect, and the detailed design specifications are preferably the same as the foregoing embodiment. This will not be repeated here.

In practical applications, the display device 2 may be a game machine such as a slot machine, but is not limited thereto. As shown in FIG. 7B, in the first display mode (for example, the game mode), the second light source 28 is not lit, that is, the second light source module 26 does not output the second backlight, and the pattern on the roller 29 can be displayed. On the display panel 21. In detail, in the game mode, the second light source 28 is turned off, and the pattern on the roller 29 is displayed on the display surface of the display panel 21 through the second light source module 26 and the opening 24 through the included light source. As shown, the screen presents a digital (777) picture on the scroll wheel 29 for viewing by the user. It should be noted that in this mode, the first light source 25 can be selectively turned on or off. If the first light source 25 is turned off, the screen is as shown in FIG. 7B; if the first light source 25 is turned on, Other images on the display panel 21 corresponding to the openings 24 may simultaneously be presented.

On the other hand, as shown in FIG. 7C, in the second display mode (for example, the non-game mode), the second light source 28 is illuminated, that is, the second light source module 26 outputs the second backlight, and the roller 29 is on the screen 29 The pattern cannot be displayed on the display panel 21. In detail, when the first light source 25 and the second light source 28 are lit, the second light source 28 has the effect of reinforcing the brightness of the image, and thus the influence of the brightness emitted by the rear roller 29 is reduced. The graphic on the 29 is not visible on the display surface, that is, in this case, the rear roller 29 does not interfere with the complete picture currently presented by the display surface. As shown, the pattern on the wheel 29 does not see through the display surface of the display panel when the game is over or not played.

In other embodiments, the optical switching element may be disposed behind the second light source module 26. The manner and effect of the arrangement are described in the foregoing embodiments, and thus are not described herein.

Compared with the prior art, the display device of the present invention can enhance the perspective effect of the display device and the variety of display modes through the design of the special second light guide plate.

The features and spirit of the present invention are intended to be more clearly described in the detailed description of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without changing from the spirit and scope of this creation, you can make all kinds of changes and retouching. Therefore, the scope of protection of this creation is subject to the definition of the scope of the appended patent application.

1‧‧‧ display device

11‧‧‧ display panel

12‧‧‧ Display surface

13‧‧‧First light source module

14‧‧‧First light guide

15‧‧‧First area

16‧‧‧Second area

17‧‧‧First light source

18‧‧‧Second light source module

19‧‧‧Second light guide

20‧‧‧second light source

Claims (10)

A display device includes: a display panel having a display surface; a first light source module disposed on a side of the display panel opposite to the display surface, the first light source module including a first area and a first a second area; wherein the first light source module outputs a first backlight in the first area, and allows ambient light behind the second area to pass through the second area to be displayed on the display surface; and a second light source a module corresponding to the second area, wherein the second area is located between the second light source module and the display panel, wherein the second light source module allows rear ambient light to pass through the second light source module And displaying the second area on the display surface, and the second light source module selectively outputs a second backlight to enter the second area. The display device of claim 1, wherein the first light source module further comprises a first light source and a first light guide plate, and the first light guide plate corresponding to the second region does not have a dot pattern. The display device of claim 1, wherein the first light source module further comprises a first light source and a first light guide plate, and the first light guide plate corresponding to the second region forms an opening. The display device of claim 3, wherein the second light source module further comprises a second light source and a second light guide plate, and the second light guide plate is an etched glass. The display device of claim 4, wherein the second light guide plate has a surface roughness of less than 50 nm. The display device of claim 4, wherein the transmittance of the second light guide plate is greater than 90%. The display device of claim 4, further comprising an optical switching component corresponding to the second region The second light source module is disposed between the light switching component and the display panel, wherein the light switching component exhibits a fog state when the second light source module outputs the second backlight. The display device of claim 4, further comprising a light switching component, wherein the second light source module is located between the light switching component and the display panel, wherein the second light source module When the group does not output the second backlight, the light switching element exhibits light transmission, and the ambient light enters the second area. A display device includes: a display panel; a first light source module disposed on one side of the display panel, and the first light source module has a first light source and a first light guide plate, such that the first light source The module can form a first backlight for the display panel, wherein the first light guide plate forms an opening; a second light source module is disposed on one side of the first light source module, and corresponds to the opening, The first light source module is disposed between the display panel and the second light source module, wherein the second light source module has a second light source and a second light guide plate, so that the second light source module is formed. a second backlight, wherein the second light guide plate is made of a glass material, and the surface of the second light guide plate has a nano-scale microstructure; and a roller is disposed on one side of the second light source module, and corresponds to The opening of the first light guide plate overlaps the vertical projections of the second light source module, the roller and the opening of the first light guide plate on the display panel. The display device of claim 9, further comprising a first display mode and a second display mode, wherein when the display device is in the first display mode, the second light source module does not form the second backlight or When the display device is in the second display mode, the second light source module forms the second backlight.