A display module and electronic device

Abstract

This utility model provides a display module and an electronic device. The display module includes a frame structure, a light guide plate disposed in the frame structure, a light source, and a flexible circuit board. The light source is disposed on one side wall of the flexible circuit board, the light guide plate is located on one side of the light source, and a gap is provided between the light guide plate and the light source. The flexible circuit board is located above the light guide plate, and a portion of the flexible circuit board and the end of the light guide plate facing the light source are staggered. A colored film layer is provided on the side wall of the flexible circuit board facing the light source. The colored film layer is used to mix the refracted light to form white light before it is emitted. This application can improve the problem of yellowing in the lamp opening area.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display module and electronic device. Background Technology

[0002] The company currently manufactures mobile phones and tablets. Customers have increasingly higher requirements for the module light source effect, the backlight border is getting narrower, the width of the light-shielding adhesive on the light source side is getting smaller, and the FPC cover film is generally white, which causes the light source end of the module to appear yellowish.

[0003] LEDs rely on a blue light chip to excite yellow phosphors (such as silicate phosphors, nitride phosphors, fluoride phosphors, and aluminate phosphors). When the LED passes through the phosphor at a small angle, the distance is short, and it emits blue light, resulting in a normal display. However, at a large angle, the distance passed through the phosphor is long, and it emits yellow light. When the LED passes through the LGP (Light Gauge Plate), the blue light is deflected at a greater angle than the yellow light, causing the yellow light to converge at the lamp opening and resulting in a yellow tint in the lamp opening area. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a display module and electronic device to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides a display module, including a frame structure, a light guide plate disposed in the frame structure, a light source, and a flexible circuit board. The light source is disposed on one side wall of the flexible circuit board, the light guide plate is located on one side of the light source, and a gap is provided between the light guide plate and the light source. The flexible circuit board is located above the light guide plate, and a portion of the flexible circuit board and the end of the light guide plate facing the light source are staggered. A colored film layer is provided on the side wall of the flexible circuit board facing the light source. The colored film layer is used to mix the refracted light to form white light before it is emitted.

[0006] The beneficial effects of this utility model are as follows: by placing the light guide plate on one side of the light source and leaving a gap between the light guide plate and the light source, placing the flexible circuit board above the light guide plate, and staggering the ends of the flexible circuit board and the light guide plate facing the light source, a colored film layer is then placed on the side wall of the flexible circuit board facing the light source. After the light emitted by the light source passes through the phosphor area, the portion of the light that has a longer path passes through the colored film layer, mixes to form white light, and is then reflected to the lamp opening area, thereby improving the problem of yellowing in the lamp opening area.

[0007] Preferably, a lens structure is provided in the gap, and a reflective sheet is provided below the light guide plate. The lens structure is used to change the angle of some of the light emitted by the light source so that the light with the changed angle is reflected by the reflective sheet and then directed towards the lamp port area of ​​the display module. The lens structure is connected to the flexible circuit board through a transparent block.

[0008] Preferably, the lens structure is a concave lens, and the lens angle is -10° to 30°.

[0009] Preferably, the flexible circuit board and the colored film layer are both inclined downwards at the ends near the light guide plate.

[0010] Preferably, an FPC adhesive layer is provided on the light guide plate, and the FPC adhesive layer is located at the intersection of the light guide plate and the flexible circuit board.

[0011] Preferably, the light source includes a plurality of LED chips, which are evenly arranged at equal angles on the flexible circuit board.

[0012] Preferably, a diffusion film is provided on the light guide plate, the diffusion film covers a portion of the light guide plate, and two layers of brightness enhancement film are stacked on the diffusion film.

[0013] To achieve the above objectives, the present invention also includes an electronic device, comprising the display module as described above.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 A cross-sectional view of the display module provided in an embodiment of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Explanation of key component symbols:

[0018] 10. Frame structure; 11. Light guide plate; 12. LED chip; 13. Flexible circuit board; 14. Reflective sheet; 15. Lens structure; 16. Colored film layer; 17. Transparent block; 18. FPC adhesive layer; 19. Diffuser film; 20. Brightness enhancement film; 21. Display screen; 22. Light-shielding adhesive layer.

[0019] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1 to 2 The display module provided in the first embodiment of this utility model includes a frame structure 10, a light guide plate 11, a light source, and a flexible circuit board 13.

[0024] The light guide plate 11, the light source, and the flexible circuit board 13 are located in the frame structure 10. A reflective sheet 14 is also provided in the frame structure 10. The reflective sheet 14 is located below the light guide plate 11. The bottom of the reflective sheet 14 is connected to the frame structure 10, and the top of the reflective sheet 14 is connected to the light guide plate 11. The flexible circuit board 13 is located above the light guide plate 11 and the light source. The flexible circuit board 13 is inclined downward towards the end of the light guide plate 11. The light source is located on one side of the light guide plate 11. The top of the light source is connected to the bottom of the flexible circuit board 13. The flexible circuit board 13 and the end of the light guide plate 11 facing the light source are staggered. There is a gap between the light source and the light guide plate 11. A lens structure 15 is provided in the gap. The lens structure 15 corresponds to the position of part of the light emitted by the light source (blue light that passes through the phosphor for a short distance). The angle of this part of the light is changed by the lens structure 15. The light passes through the lens structure 15 and the reflective sheet 14 in sequence and is directed to the lamp port area of ​​the display module, so that the blue light can be focused in the lamp port area.

[0025] Additionally, a colored film layer 16 is provided at the bottom of the flexible circuit board 13. The end of the colored film layer 16 near the light guide plate 11 is inclined downwards. The colored film layer 16 is located between the light source and the flexible circuit board 13. The colored film layer 16 is a blue base film. Under large angle conditions, the light passing through the phosphor over a long distance is yellow light. The yellow light is mixed and refracted into white light after passing through the blue base film, thereby improving the problem of yellowing in the lamp port area.

[0026] In this embodiment, the lens structure 15 is a concave lens with a diopter of -10° to 30°. The specific diopter of the lens structure 15 is determined based on the light source, the distance between the lens structure 15 and the colored film layer 16, and the incident angle.

[0027] In this embodiment, the lens structure 15 is connected to the flexible circuit board 13 via a transparent block 17. Specifically, one end of the transparent block 17 is connected to the top of the lens structure 15, and the other end of the transparent block 17 is connected to the bottom of the flexible circuit board 13.

[0028] In this embodiment, the light source includes a plurality of LED chips 12, which are evenly arranged at equal angles on the flexible circuit board 13. The size of the transparent structure and the transparent block 17 is adapted to the plurality of LED chips 12, and the LED chips 12 are used to emit light.

[0029] In this embodiment, an FPC adhesive layer 18 and a diffusion film 19 are disposed on the light guide plate 11. The FPC adhesive layer 18 and the diffusion film 19 do not interfere with each other. The diffusion film 19 covers part of the light guide plate 11. The FPC adhesive layer 18 is located between the diffusion film 19 and the flexible circuit board 13, and the FPC adhesive layer 18 is located at the intersection of the light guide plate 11 and the flexible circuit board 13. Two layers of brightness enhancement film 20 are stacked on the diffusion film 19. A light-shielding adhesive layer 22 is disposed on the flexible circuit board 13. A display screen 21 is disposed on the diffusion film 19. The display screen 21 and the light-shielding adhesive layer 22 are located on the same plane. The light-shielding adhesive layer 22 is connected to the FPC adhesive layer 18, and the light-shielding adhesive layer 22 covers part of the diffusion film 19.

[0030] In specific implementation, by placing the light guide plate 11 on one side of the light source and leaving a gap between the light guide plate 11 and the light source, placing the flexible circuit board 13 above the light guide plate 11, and staggering the ends of the flexible circuit board 13 and the light guide plate 11 facing the light source, then setting a lens structure 15 in the gap, setting a reflective sheet 14 below the light guide plate 11, and setting a colored film layer 16 on the side wall of the flexible circuit board 13 facing the light source, the lens structure 15 is used to change the angle of the short path of the light emitted by the light source through the phosphor area. The light emitted by the lens structure 15 then passes through the reflective sheet 14 and is directed to the lamp port area of ​​the display module. The light emitted by the light source that passes through the phosphor area through the colored film layer 16 is mixed to form white light and then reflected to the lamp port area, thereby improving the problem of yellowing in the lamp port area.

[0031] It should be noted that the above implementation process is only to illustrate the feasibility of this application, but it does not mean that the display module of this application has only the above-mentioned unique implementation process. On the contrary, as long as the display module of this application can be implemented, it can be included in the feasible implementation scheme of this application.

[0032] The electronic device provided in the second embodiment of the utility model includes the display module in the first embodiment.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A display module, comprising a frame structure, a light guide plate disposed in the frame structure, a light source, and a flexible circuit board, characterized in that, The light source is disposed on one side wall of the flexible circuit board, the light guide plate is located on one side of the light source, a gap is provided between the light guide plate and the light source, the flexible circuit board is located above the light guide plate, and a portion of the flexible circuit board and the end position of the light guide plate facing the light source are staggered. A colored film layer is provided on the side wall of the flexible circuit board facing the light source, and the colored film layer is used to mix the refracted light to form white light before it is emitted.

2. The display module according to claim 1, characterized in that, A lens structure is provided in the gap, and a reflective sheet is provided below the light guide plate. The lens structure is used to change the angle of some of the light emitted by the light source so that the light with the changed angle is reflected by the reflective sheet and then directed towards the lamp port area of ​​the display module. The lens structure is connected to the flexible circuit board through a transparent block.

3. The display module according to claim 2, characterized in that, The lens structure is a concave lens, and the lens power is -10° to 30°.

4. The display module according to claim 1, characterized in that, The flexible circuit board and the colored film layer are both inclined downwards at the ends near the light guide plate.

5. The display module according to claim 1, characterized in that, An FPC adhesive layer is provided on the light guide plate, and the FPC adhesive layer is located at the intersection of the light guide plate and the flexible circuit board.

6. The display module according to claim 1, characterized in that, The light source includes a plurality of LED chips, which are arranged uniformly at equal angles on the flexible circuit board.

7. The display module according to claim 1, characterized in that, A diffusion film is provided on the light guide plate, the diffusion film covers a portion of the light guide plate, and two layers of brightness enhancement film are stacked on the diffusion film.

8. An electronic device, characterized in that, Includes the display module as described in any one of claims 1-7.

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