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Diffusion plate, backlight module and assembling method of backlight module, and display device

A technology of backlight module and diffusion plate, which is applied in the directions of installation, optics, optical components, etc., and can solve the problems of shortening, direct-type backlight module frame and thickness difficulty, etc.

Active Publication Date: 2019-10-08
BEIJING JINGDONGFANG CHAGU ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention at least partly solves the problem that the frame and thickness of the existing direct-lit backlight module are difficult to be further shortened, and provides a diffusion plate, a backlight module, an assembly method of the backlight module, and a display device

Method used

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  • Diffusion plate, backlight module and assembling method of backlight module, and display device
  • Diffusion plate, backlight module and assembling method of backlight module, and display device
  • Diffusion plate, backlight module and assembling method of backlight module, and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see figure 1 , the present embodiment provides a diffuser plate 1, comprising a diffuser plate main body 11, the diffuser plate main body 11 includes a relative light incident surface and a light exit surface, and a plurality of sides connected to the light incident surface and the light exit surface, and the diffuser plate main body 11 is divided into There is a display area and a plurality of segments surrounding the display area, each segment of the perimeter area corresponding to a side.

[0026] The diffuser plate 1 can be applied in a direct type backlight module. The diffuser main body 11 is used to form a surface light source, and the specific structural features can refer to the diffuser in the traditional direct-lit backlight module. Therefore, the features of the diffusion plate main body 11 will not be described in detail. Wherein, the light emitted from the display area is used for display. figure 1 The diffuser plate 1 shown has four sides and correspon...

Embodiment 2

[0044] see figure 2 and image 3 , and combined with figure 1 , this embodiment provides a backlight module, including the diffusion plate 1 of Embodiment 1, the optical film 3 located on the light exit side of the diffusion plate main body 11 and limited by the stopper 12 , the entrance of the diffusion plate main body 11 The lamp panel 2 on the light side and carried by the mounting member 13 .

[0045] Since the diffuser plate 1 simultaneously functions to limit the position of the optical film 3 and to carry the lamp panel 2, the backlight module can achieve narrow frame and light weight.

[0046] Optionally, a closing structure 4 is provided at the light-emitting side of the diffuser plate main body 11 at a side position where no limiting member 12 is provided, and at the side position where the light-incident side of the main body of the diffuser plate 1 is not provided with a mounting member 13 , the sealing structure 4 is used to seal the optical film 3 and the lam...

Embodiment 3

[0052] see Figure 6 and combine figure 2 and image 3 , this embodiment provides an assembly method of a backlight module, using the diffuser plate 1 of Embodiment 1, and the assembly method includes the following steps.

[0053] S1. Place the optical film 3 on the light emitting side of the main body 11 of the diffuser, wherein the optical film 3 is limited by the limiting member 12 .

[0054] S2. Insert the lamp panel 2 from below the light-incident side of the diffuser plate main body 11 without the mounting part 13 to the lower side of the light-incident side of the diffuser plate main body 11 and mount it on the mounting part 13 .

[0055] S3. Use the sealing structure 4 to seal the optical film 3 at the light-emitting side of the diffuser plate main body 11 and the side position where the stopper 12 is not provided, and the light-incident side of the main body of the diffuser plate 1 without the mounting member 13 The side position is used to seal the lamp panel 2 ....

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Abstract

The invention provides a diffusion plate, a backlight module and an assembling method of backlight module, and a display device, and belongs to the technical field of display, and the problem that theexisting direct down type backlight module is difficult to further thin can be solved at least partially. The diffusion plate comprises a diffusion plate main body, and also comprises at least one limiting piece and at least two carrying pieces; the limiting piece is used for limiting an optical diaphragm, and each limiting piece is located on the light emitting side of the diffusion plate main body; the orthographic projection of each limiting piece on the diffusion plate main body is not overlapped with a display area and overlaps with a peripheral area; the carrying pieces are used for carrying lamp panels, and each carrying piece is positioned on the light inlet side of the diffusion plate main body; each carrying piece is not overlapped with the display area on the contact surface ofthe diffusion plate main body and is overlapped with the peripheral area; at least one pair of opposite peripheral areas of the diffusion plate main body is correspondingly provided with the carryingpieces; and a carrying piece is not arranged on at least one peripheral area of the diffusion plate main body.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a diffusion plate, a backlight module, an assembly method of the backlight module, and a display device. Background technique [0002] The backlight module can provide backlight for liquid crystal display panels and the like. Existing backlight modules can be divided into direct-type backlight modules and side-type backlight modules. Usually, in a direct-lit backlight module, a backplane and a frame are required to support the lamp panel and optical films (eg, upper prism sheet, lower prism sheet, etc.). It is difficult to further shorten the frame and thickness of the existing direct-lit backlight module. Contents of the invention [0003] The present invention at least partly solves the problem that the frame and thickness of the existing direct-lit backlight module cannot be further shortened, and provides a diffusion plate, a backlight module, an assembly met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B7/00
CPCG02F1/133606G02F1/133608G02B7/00
Inventor 李亭
Owner BEIJING JINGDONGFANG CHAGU ELECTRONICS