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Light guide plate, backlight module and liquid crystal module

A technology of backlight module and light guide plate, applied in the fields of light guide plate, backlight module and liquid crystal module, can solve the problems of uneven brightness of edge-lit backlight display, difficulty in cutting and making dots of large-size light guide plate, etc., and achieves simplification Cropping and dot production, uniform brightness effect

Active Publication Date: 2014-06-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a light guide plate, which is used to solve the problems of uneven brightness of side-lit backlight displays, and difficulties in cutting large-size light guide plates and making dots

Method used

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  • Light guide plate, backlight module and liquid crystal module
  • Light guide plate, backlight module and liquid crystal module
  • Light guide plate, backlight module and liquid crystal module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In this embodiment, a light guide plate is provided, which is used in a backlight module, especially an edge-lit backlight module, and the backlight source 7 emitting light is arranged near the side of the light guide plate. The light guide plate has an incident surface and a first light emitting surface adjacent to the incident surface, the light emitted by the backlight 7 is incident into the light guide plate from the incident surface, and after being guided by the light guide plate, the light from the entire second A light emitting surface is emitted to form a surface light source, which is provided to the display panel for display.

[0021] which, combined with figure 2 and image 3 As shown, the light guide plate is composed of a plurality of light guide blocks 20, which can simplify the cutting of large-sized light guide plates and the production of dots. The light guide block 20 is also doped with scattering particles 21, so that most of the light incident on...

Embodiment 2

[0029] combine figure 2 and image 3 As shown, this embodiment provides a backlight module, especially an edge-lit backlight module. It includes a backplane 1, a light guide plate disposed on the backplane 1, and a backlight source 7 disposed adjacent to the side of the light guide plate. The light guide plate has an incident surface and a first light emitting surface adjacent to the incident surface, the light emitted by the backlight 7 is incident into the light guide plate from the incident surface, and after being guided by the light guide plate, the light from the entire second A light emitting surface is emitted to form a surface light source, which is provided to the display panel for display.

[0030] Wherein, the light guide plate is composed of a plurality of light guide blocks 20, which can simplify the cutting of the large size light guide plate and the production of dots. Scattering particles 21 are also doped in the light guide block 20, so that in the first ...

Embodiment 3

[0041] This embodiment provides a liquid crystal module, specifically a liquid crystal display device. It adopts the backlight module in the second embodiment, because the backlight module provides a surface light source with uniform brightness distribution, which makes the brightness of the liquid crystal module uniform and improves the display quality of the liquid crystal module.

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PUM

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Abstract

The invention relates to the technical field of liquid crystal display, and discloses a light guide plate, a backlight module and a liquid crystal module. The light guide plate is composed of a plurality of light guide blocks, scattering particles are doped in the light guide blocks, and most of light entering in the light guide blocks is scattered in the preset direction. Due to the fact that the light guide plate is composed of the light guide blocks, cutting of the light guide plate and manufacturing of mesh points can be simplified. Through the arrangement of the scattering particles, most of the light entering in the light guide blocks is scattered in the preset direction and is guided to the middle and the far light end of the backlight module, the brightness of the middle and the far light end of the backlight module is compensated, and the brightness of a side light type backlight displayer can be uniform.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a light guide plate, a backlight module and a liquid crystal module. Background technique [0002] Since the liquid crystal itself does not emit light, in various liquid crystal display devices (Liquid Crystal Display, hereinafter referred to as "LCD") such as liquid crystal monitors and liquid crystal TVs, it is necessary to rely on an external backlight source to realize display. Backlights are divided into two types: side-lit and direct-lit according to the distribution position, and side-lit backlights are widely used in small and medium-sized LCDs because of the advantages of fewer light-emitting devices required, low cost, and thin thickness. [0003] figure 1 Shown is a partial cross-sectional view of an edge-lit backlight module, which includes a backplane 1, a light guide plate 2 and an optical film material 3 sequentially arranged above the backplane 1 f...

Claims

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Application Information

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IPC IPC(8): G02B6/00G02B5/02G02F1/13357F21S8/00F21V8/00
CPCG02B6/0041G02B6/0035G02B6/0078
Inventor 张宇马文文贾丽丽马青尹大根
Owner BOE TECH GRP CO LTD