CN204678160U - Backing structure and display unit - Google Patents

Abstract

The utility model discloses a backlight structure, comprising a backlight module and a shading sheet attached above the backlight module, the shading sheet has a folding mechanism, and the folding mechanism is attached to the backlight module side or back. The utility model also discloses a display device comprising the backlight structure. The structure of the backlight is simple; there is no need to over-consider the width and narrowness of the frame of the backlight structure, and its main sticking area is on the side and back of the backlight module, which solves the problem of the existing backlight structure that the sticking area of the shading sheet is small and the sticking strength is not enough problem; the backlight structure can greatly improve the light leakage problem on the side and back of backlight structures such as the integration of frames and iron frames; the backlight structure of the present utility model has better practicability, and can not only improve the The bonding strength can also reduce the defect rate of the backlight, such as light leakage, and it also caters to the current development trend of the backlight.

Description

Backlight structure and display device

technical field

The utility model relates to the technical field of display equipment, in particular to a backlight structure and a display device comprising the backlight structure.

Background technique

In order to solve the above problems, the present invention adopts the wrapping method, which not only has sufficient bonding area and bonding strength, but also solves the problem of light leakage, improves the yield rate, and fully conforms to the development trend of the market.

At present, the "ultra-large, ultra-thin, ultra-narrow" backlight structure has become the mainstream of the market, and the requirements for product effects are becoming more and more stringent, which not only increases the difficulty of manufacturing the backlight structure, but also improves the process requirements of the backlight structure . The current requirement for the frame of the backlight structure is narrower, narrower, or even none, which makes the traditional light-shielding film gradually unable to meet today's needs. If the shading sheet is too narrow, it will lead to low bonding strength, difficulty in bonding, and high defect rate; if it is too wide, it will violate the development trend of the market. As shown in Figures 1 to 3, according to the design standard of traditional shading sheets, a gap of 0.05-0.10mm is generally left on one side between the periphery of the shading sheet and the periphery of the backlight structure. In order to ensure that the shading has enough pasting area, no matter it is the "frame" backlight structure shown in Figure 1, the "frame+iron frame" backlight structure shown in Figure 2, or the "iron frame integration" shown in Figure 3 For the backlight structure, it must be considered that the width of the backlight frame should not be too narrow, because only a wide enough frame can ensure the effective bonding area and strength of the shading sheet, but this obviously does not meet the needs of today's market development.

Utility model content

In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a simple structure, which does not need to worry about problems such as small pasting area of the light-shielding sheet, insufficient viscosity, difficult pasting, etc. A backlight structure that eliminates light leakage problems such as rubber ports and effectively improves yield. The utility model also provides a display device comprising the backlight structure.

The technical problem to be solved by the utility model is realized through the following technical solutions:

A backlight structure, comprising a backlight module and a shading sheet attached above the backlight module, the shading sheet has a folding mechanism, and the folding mechanism is attached to the side or back of the backlight module.

Further, the folding mechanism is two symmetrical folding.

Further, the folding mechanism is four folding.

Further, the backlight module includes a frame, a light guide plate located in the frame, a light-emitting unit located on one side of the light guide plate, an optical film located above the light guide plate, and a reflective sheet located below the light guide plate .

Further, the backlight module includes a frame, a light guide plate located in the frame, a light emitting unit located on one side of the light guide plate, an optical film located above the light guide plate, a reflective sheet located below the frame, An iron frame for fastening the frame.

Further, the frame is integrally formed with the iron frame.

Further, the optical film includes a diffusion film, a lower brightness enhancement film and an upper brightness enhancement film, and the diffusion film, the lower brightness enhancement film and the upper brightness enhancement film are sequentially stacked above the light guide plate.

Further, the light emitting unit includes a flexible circuit board and a plurality of LED lights connected to the circuit board.

A display device includes the above-mentioned backlight structure.

The utility model has the following beneficial effects:

The shading sheet of the utility model does not need to consider the width and narrowness of the frame of the backlight structure too much, and its main sticking area is on the side and back of the backlight module, which solves the problem of the existing backlight structure that the sticking area of the shading sheet is small and the sticking strength is not enough problem; the backlight structure can greatly improve the light leakage problem on the side and back of backlight structures such as the integration of frames and iron frames; the backlight structure of the present utility model has better practicability, and can not only improve the The bonding strength can also reduce the defect rate of the backlight, such as light leakage, and it also caters to the current development trend of the backlight.

Description of drawings

Figure 1 is a partial structural schematic diagram of a traditional "frame" backlight structure;

Figure 2 is a partial structural schematic diagram of the traditional "frame + iron frame" backlight structure;

Figure 3 is a partial structural schematic diagram of the traditional "frame and iron frame integration" backlight structure;

Fig. 4 is a schematic diagram of the front structure of the backlight structure of the present invention;

Fig. 5 is a schematic diagram of the reverse structure of the backlight structure of the present invention;

Fig. 6 is a partial structural schematic diagram of the "frame" backlight structure of the utility model;

Fig. 7 is a partial structural schematic diagram of the backlight structure of the utility model "frame + iron frame";

Fig. 8 is a partial structural schematic diagram of the backlight structure of the utility model "integrated frame and iron frame".

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Please refer to Figures 4 to 8, which show a backlight structure, including a backlight module 2 and a shading sheet 1 attached above the backlight module 2, the shading sheet 1 has a folding mechanism 11, the The folding mechanism 11 is attached to the side or the back of the backlight module 2 .

Preferably, the shading sheet 1 is an annular shading sheet with one wide side and three narrow sides. The shading sheet 1 is mainly fixed by the sticking area on the side and/or back of the backlight module 2 . The hemming mechanism 11 can be two hemmings arranged symmetrically; it can also be three hemmings, or it can be four hemmings. The light-shielding sheet 1 is pasted above the backlight module 2 and wraps the side and/or back of the backlight module 2 through the hemming mechanism 11, further improving the stability of the light-shielding sheet 1 and the backlight structure.

Example 1

Please refer to FIG. 6 , which shows a partial structural schematic diagram of the "frame" backlight structure of the present invention. The backlight mechanism includes a backlight module 2 and a shading sheet 1 attached above the backlight module 2, the shading sheet 1 has a folding mechanism 11, and the folding mechanism 11 is attached to the side of the backlight module 2 The edge and the back, the folding mechanism 11 is four folding. The backlight module 2 includes a frame 21 , a light guide plate 23 , a light emitting unit 28 , an optical film and a reflection sheet 27 . The frame 21 is provided with an accommodating space for carrying the light guide plate 23; the light guide plate 23 has a light incident surface and a light exit surface; the light emitting unit 28 is located near the light incident surface of the light guide plate 23 Inside the frame 21; the optical film includes a diffusion film 24, a lower brightness enhancement film 25, and an upper brightness enhancement film 26, and the diffusion film 24, the lower brightness enhancement film 25, and the upper brightness enhancement film 26 are sequentially stacked on the guide Above the light emitting surface of the light plate 23 ; the reflection sheet 27 is located below the light guide plate 23 .

Example 2

Please refer to FIG. 7 , which shows a partial structural schematic diagram of the "frame+iron frame" backlight structure of the present invention. The backlight mechanism includes a backlight module 2 and a shading sheet 1 attached above the backlight module 2, the shading sheet 1 has a folding mechanism 11, and the folding mechanism 11 is attached to the side of the backlight module 2 edge, the folding mechanism 11 is two symmetrically arranged folding edges. The backlight module 2 includes an iron frame 22 , a frame 21 , a light guide plate 23 , a light emitting unit 28 , an optical film and a reflection sheet 27 . The iron frame 22 buckles the frame 21; the frame 21 is provided with an accommodating space for carrying the light guide plate 23; the light guide plate 23 has a light incident surface and a light output surface; the light emitting unit 28 is located close to In the frame 21 on the light incident side of the light guide plate 23; the optical film includes a diffusion film 24, a lower brightness enhancement film 25 and an upper brightness enhancement film 26, and the diffusion film 24, the lower brightness enhancement film 25 and the The upper brightness enhancement film 26 is sequentially stacked above the light-emitting surface of the light guide plate 23 ; the reflection sheet 27 is located below the light guide plate 23 .

Example 3

Please refer to FIG. 8 , which shows a schematic diagram of a partial structure of the backlight structure of the "integrated frame and iron frame" of the present invention. The difference between this embodiment and Embodiment 2 is that the folding mechanism 11 is attached to the side and the back of the backlight module 2, and the folding mechanism 11 has four folding edges and the iron frame 22 and the The frame 21 is integrally formed.

The light emitting unit 28 of the present invention includes a flexible circuit board and a plurality of LED lamps connected on the circuit board.

The shading sheet of the backlight structure of the utility model does not need to consider the width and narrowness of the frame too much, because its main pasting area is on the side and back of the backlight module, which solves the problem of the existing backlight structure that the pasting area of the shading sheet is small and the bonding strength is not enough problems; the backlight structure can also greatly improve the light leakage problems on the side and back of backlight structures such as frame, frame + iron frame, and frame iron frame integration; the backlight structure has good practicability, not only can Improving the bonding strength of the shading sheet can also reduce the defect rate of the backlight, such as light leakage, and also cater to the current development trend of the backlight.

The utility model also provides a display device, comprising the above-mentioned backlight structure.

The above-mentioned embodiments only express the implementation manner of the present utility model, and its description is comparatively specific and detailed, but can not therefore be interpreted as the restriction to the patent scope of the present utility model, as long as adopt the form of equal replacement or equivalent transformation to obtain All technical solutions should fall within the protection scope of the present utility model.

Claims (9)

1. a backing structure, is characterized in that, comprise a backlight module and be fitted in the anti-dazzling screen above this backlight module, described anti-dazzling screen has edge-folding mechanism, and described edge-folding mechanism is fitted in side or the back side of backlight module.

2. backing structure according to claim 1, is characterized in that, described edge-folding mechanism is two symmetrical flangings.

3. backing structure according to claim 1, is characterized in that, described edge-folding mechanism is four flangings.

4. backing structure according to claim 1, it is characterized in that, described backlight module comprises framework, be positioned at the light guide plate of described framework, be positioned at the luminescence unit of described light guide plate side, be positioned at blooming above described light guide plate, be positioned at reflector plate below described light guide plate.

5. backing structure according to claim 1, it is characterized in that, described backlight module comprises framework, be positioned at the light guide plate of described framework, be positioned at the luminescence unit of described light guide plate side, be positioned at blooming above described light guide plate, being positioned at reflector plate below described framework, for fastening the brandreth of described framework.

6. backing structure according to claim 5, is characterized in that, described framework and brandreth are formed in one.

7. backing structure according to claim 5, is characterized in that, described blooming comprises diffusion barrier, lower brightness enhancement film and upper brightness enhancement film, and described diffusion barrier, lower brightness enhancement film and upper brightness enhancement film are sequentially laminated on above described light guide plate.

8. backing structure according to claim 5, is characterized in that, described luminescence unit comprises flexible PCB and the multiple LED be connected on circuit boards.

9. a display unit, is characterized in that, comprises backing structure according to claim 1.