WO2020191820A1

WO2020191820A1 - Display apparatus

Info

Publication number: WO2020191820A1
Application number: PCT/CN2019/082344
Authority: WO
Inventors: 陈建霖; 章小和; 陈少棉; 郑瑞建
Original assignee: 信利光电股份有限公司
Priority date: 2019-03-27
Filing date: 2019-04-12
Publication date: 2020-10-01
Also published as: CN208922027U

Abstract

A display apparatus. Light shielding layers (12) are provided on a surface around an area, corresponding to a camera hole (11), on a lower glass substrate (7) to block light from leaking out of the camera hole (11) from an edge of a lower polarizer (8), thereby preventing the generation of leaked light around the camera hole (11). In an existing display apparatus, a front-facing camera is located in a display area, and a narrow bezel can be made around a screen; however, in the case where the camera hole is very small, a hole still needs to be formed in a backlight module to receive a camera, and the phenomena of reflection and diffuse reflection of light etc. still occurs, and light only slightly leaks from around the camera hole.

Description

A display device

Technical field

The utility model relates to the technical field of liquid crystal display, in particular to a display device

Background technique

As mobile phones become narrower and narrower and require higher screen-to-body ratios, the fingerprint module at the lower end can do fingerprints on the back or under the screen, while the front camera at the upper end cannot be hidden. It can only be made at the front, occupying a lot of Large area.

At present, some manufacturers place the front camera in the display area, so that a narrow border can be achieved around the screen. Since the camera hole is small, the backlight needs to be opened to place the camera. Due to the phenomenon of light reflection and diffuse reflection, there is a slight light leakage around the camera hole.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

The utility model provides a display device. A light shielding layer is provided on the surface of the lower glass substrate corresponding to the surrounding area of the imaging hole to block light from leaking out of the imaging hole from the edge of the lower polarizer and prevent light leakage around the imaging hole.

The above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

A display device includes a camera, a display module, and a backlight module; the camera is located in the display area of the display module; the display module is located on the light emitting side of the backlight module; the backlight module is provided with a camera hole The camera is located in the camera hole; the display module includes a lower glass substrate; a light shielding layer is provided around the area of the lower glass substrate corresponding to the camera hole to block light leakage of the backlight module around the camera hole.

With the above structure, the light leakage of the imaging hole is mainly caused by the light leaking from the lower polarizer between the backlight module and the lower glass substrate. The light shielding layer is provided on the surface of the lower glass substrate corresponding to the surrounding area of the imaging hole to block the light from the lower polarizer. Leaking the camera hole.

It is further optimized that the light shielding layer is BM ink.

With the above structure, BM ink is often used in the production process of display devices, and has a good shading effect.

It is further optimized that the backlight module includes an optical film group and a back plate, the back plate is arranged on a side of the backlight module away from the display module; the camera hole penetrates the optical film group and the back plate board.

With the above structure, the camera hole penetrates through the optical film set and the back plate to avoid interference between the normal operation of the camera and the backlight module.

It is further optimized that the back plate of the backlight module is bent inward as the side wall of the imaging hole; a light-shielding glue is arranged on the side wall of the imaging hole, and the light-shielding glue is pasted on the backlight module.

With the above structure, the light from the side of the backlight module is prevented from entering the imaging hole, causing light leakage from the imaging hole.

It is further optimized that the camera and the side wall of the camera hole are connected by glue.

With the above structure, the camera and the camera hole are firmly fixed to prevent the camera from falling off due to vibration.

It is further optimized that black glue is arranged between the side wall of the imaging hole and the lower glass substrate.

With the above structure, the black glue seals the gap between the lower polarizer and the side wall of the imaging hole to further prevent light from entering the imaging hole from the lower polarizer.

It is further optimized that the display area of the display module includes a light incident area; the light incident area is transparent, and the light incident area corresponds to the imaging hole and is used to transmit external light to facilitate imaging by the camera.

It is further optimized that the display module includes a cover plate from top to bottom, a transparent optical OCA glue, an upper polarizer, an upper glass substrate, a lower glass substrate, and a lower polarizer; between the upper glass substrate and the lower glass substrate Equipped with BM ink.

It is further optimized that liquid crystal is arranged between the upper glass substrate and the lower glass substrate; no liquid crystal is arranged in the light incident area.

With the above structure, the camera needs light for imaging, and no liquid crystal is provided in the light incident area, which is convenient for the camera to obtain sufficient light for imaging.

The beneficial effects of the invention

Beneficial effect

The utility model provides a display device. A light shielding layer is provided on the surface of the lower glass substrate corresponding to the surrounding area of the imaging hole to block light from leaking out of the imaging hole from the edge of the lower polarizer and prevent light leakage around the imaging hole. The problem solved is that In the technology, the front camera is located in the display area of the display device, and the screen can be narrowed around the screen. However, because the camera hole is small, the backlight needs to be opened to place the camera, and there are phenomena such as light reflection and diffuse reflection. There is a slight light leakage around the hole.

Brief description of the drawings

Description of the drawings

FIG. 1 is a schematic cross-sectional view of a display device in the prior art, which is mainly used to illustrate light leakage around an imaging hole.

2 is a schematic cross-sectional view of a display device in an embodiment of the present invention, and is mainly used to illustrate the light shielding layer.

3 is a schematic cross-sectional view of the display device in an embodiment of the present invention, which is mainly used to illustrate the vinyl between the side wall of the imaging hole and the lower glass substrate.

Fig. 4 is a schematic front view of a display device in an embodiment of the present invention.

Reference signs: 1. Display area of the display module; 2. Frame of the display module; 3. Cover plate; 4. Transparent optical OCA glue; 5. Upper polarizer; 6. Upper glass substrate; 7. Lower glass substrate; 8. Lower polarizer; 9. Optical film group; 10. Back plate; 11. Camera hole; 12. Light-shielding layer; 13. Light-shielding glue; 14. BM ink between upper and lower glass substrates; 15. Camera angle of view ; 16. Vinyl.

Invention embodiment

Embodiments of the invention

In order to be able to understand the above objectives, features and advantages of the present utility model more clearly, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described here. Therefore, the protection scope of the present utility model is not covered by the following Limitations of the specific embodiments disclosed.

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the display device of the prior art and the display device of the present utility model will be described in further detail below in conjunction with the embodiments and drawings.

Prior art: As shown in Figure 1, a display device includes a display module, a backlight module, and a camera (not shown in the figure). The display module includes a display area 1 and a frame 2. In order to pursue a higher screen-to-body ratio, some manufacturers place the front camera in the display area 1, so that a narrow frame can be achieved around the screen. The camera hole 11 is very small, and the backlight module has to open a hole to place the camera. Due to the phenomenon of light reflection and diffuse reflection, the light easily leaks at the lower polarizer 8, so there is slight light leakage in the area B around the camera hole 11.

The following describes the embodiments of the utility model.

Example

As shown in Figures 2-4, a display device includes a camera (not shown in the figure), a display module, and a backlight module; the camera is located in the display area 1 of the display module; the display module is located in the backlight The light-emitting side of the module; the backlight module is provided with a camera hole 11, and the camera is located in the camera hole 11; the display module is provided with a light shielding layer 12 around the area corresponding to the camera hole 11 to shield the backlight module Set the light leakage around the imaging hole 11; by providing a light shielding layer 12 around the display module area corresponding to the imaging hole 11, light leakage in the area B around the imaging hole 11 is prevented.

Preferably, the display module further includes an upper polarizer 5, an upper glass substrate 6, a lower glass substrate 7, and a lower polarizer 8 from top to bottom; the light shielding layer 12 is disposed on the lower glass substrate 7 corresponding to the imaging hole 11 The surface of the surrounding area of the imaging hole 11 is mainly caused by light leaking from the edge of the lower polarizer 8 between the backlight module and the lower glass substrate 7, and a light shielding layer is provided on the surface of the lower glass substrate 7 corresponding to the surrounding area of the imaging hole 11 12. Block the light from leaking out of the imaging hole 11 from the edge of the lower polarizer 8.

Further, the upper polarizer 5 is further provided with a cover plate 3, and the upper polarizer 5 and the cover plate 3 are bonded by a transparent optical OCA glue 4.

Further, the light-shielding layer 12 is BM ink; BM ink is often used in the production process of display devices and has a good light-shielding effect; it is easy to understand that the light-shielding layer can also be other sheet-like films that can refract light, such as black flakes. Double-sided tape, any film that can shading and does not interfere with the normal operation of the display device can be used as a shading layer.

Preferably, BM ink 14 is provided between the upper glass substrate 6 and the lower glass substrate 7; to prevent the light from entering the imaging hole 11 from the area between the upper and lower glass substrates in the working state of the display module, causing the imaging hole 11 Light leak.

Preferably, the backlight module includes an optical film group 9 and a back plate 10, the back plate 10 is arranged on the side of the backlight module away from the display module; the camera hole 11 penetrates the optical film group 9 And the back plate 10; the camera hole 11 penetrates the optical film set 9 and the back plate 10 to avoid interference between the normal operation of the camera and the backlight module.

Preferably, the back plate 10 of the backlight module is bent inward as the side wall of the imaging hole 11; above the side wall of the imaging hole 11 is provided with a light-shielding glue 13, and the light-shielding glue 13 is pasted on the backlight module Above the optical film set 9; the shading glue 13 prevents light from the side of the backlight module from entering the imaging hole 11, the shading glue 13 is dark glue, preferably black glue; the back plate 10 is bent inward as the side wall of the imaging hole 11 to avoid The light from the side of the backlight module enters the imaging hole 11, no other structure needs to be introduced as the side wall of the imaging hole 11, and the structure is simple.

Preferably, the camera and the side wall of the camera hole 11 are connected by glue; the camera and the camera hole 11 are firmly fixed to prevent the camera from shaking in the camera hole 11 due to vibration.

Further, black glue 16 is provided between the side wall of the imaging hole 11 and the lower glass substrate 7 by means of glue; the black glue 16 seals the gap between the lower polarizer 8 and the side wall of the imaging hole 11 to further prevent light from passing The lower polarizer 8 enters the imaging hole 11, causing light leakage in the area around the imaging hole; the black glue 16 can also be other dark-colored colloids to further prevent light leakage in the area around the imaging hole 11.

Preferably, the display module includes a display area 1 and a frame 2; the display area 1 includes a light incident area A, the light incident area A corresponds to the imaging hole 11, and the light incident area A is transparent and used to pass through Passing outside light is convenient for imaging by the camera; the display area corresponding to the viewing angle 15 of the camera is located inside the light incident area A.

Furthermore, a liquid crystal (not shown in the figure) is arranged between the upper glass substrate 6 and the lower glass substrate 7; no liquid crystal is arranged in the light incident area A. ; The camera imaging needs light, and no liquid crystal is set inside the light incident area A, which is convenient for the camera to obtain images with the same true color as external objects.

The utility model provides a display device. A light shielding layer is provided on the surface of the lower glass substrate corresponding to the surrounding area of the imaging hole to block light from leaking out of the imaging hole from the edge of the lower polarizer and prevent light leakage around the imaging hole. The problem solved is that the existing In the technology, the front camera is located in the display device in the display area, and the screen can have a narrow frame around the screen. However, because the camera hole is small, the backlight needs to be opened to place the camera, and there are phenomena such as light reflection and diffuse reflection. There is a slight light leakage around.

The above-mentioned specific embodiments are merely explanations of the present utility model, and are not a limitation of the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment and implementation modes without creative contribution as needed, but as long as The utility model is protected by the patent law within the scope of the claims.

Claims

A display device, characterized by comprising a camera, a display module, and a backlight module; the camera is located in the display area of the display module; the display module is located on the light emitting side of the backlight module; on the backlight module There is a camera hole, the camera is located in the camera hole; the display module includes a lower glass substrate; the lower glass substrate is provided with a light shielding layer around the area corresponding to the camera hole to shield the backlight module around the camera hole Light leak.
The display device of claim 1, wherein the light shielding layer is BM ink.
The display device according to claim 1, wherein the backlight module comprises an optical film set and a back plate, the back plate is arranged on a side of the backlight module away from the display module; the camera hole Through the optical film set and the back plate.
The display device according to claim 3, wherein the back plate of the backlight module is bent inward as the side wall of the imaging hole; a light-shielding glue is provided on the side wall of the imaging hole, and the light-shielding glue Paste on the top of the backlight module.
The display device of claim 1, wherein the camera is connected to the side wall of the imaging hole by glue.
The display device according to claim 1, wherein a black glue is provided between the side wall of the imaging hole and the lower glass substrate.
The display device according to claim 1, wherein the display area of the display module comprises a light incident area; the light incident area is transparent, and the light incident area corresponds to the imaging hole for transmitting External light facilitates imaging by the camera.
8. The display device of claim 7, wherein the display module comprises a cover plate from top to bottom, a transparent optical OCA glue, an upper polarizer, an upper glass substrate, a lower glass substrate, and a lower polarizer; BM ink is arranged between the upper glass substrate and the lower glass substrate.
8. The display device of claim 8, wherein a liquid crystal is provided between the upper glass substrate and the lower glass substrate; and no liquid crystal is provided in the light incident area.