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Liquid crystal panel backlight

A liquid crystal panel and backlight technology, applied in the field of backlight, can solve problems such as color spots and shadows, optical reflection superimposition effect, etc., and achieve the effect of improving display effect and eliminating color spots and light shadows

Active Publication Date: 2008-02-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is: the inclined planar side frame structure of the existing liquid crystal panel backlight is likely to cause optical reflection superimposition effect, thus easily producing color spots and shadows

Method used

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  • Liquid crystal panel backlight
  • Liquid crystal panel backlight
  • Liquid crystal panel backlight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment provides a liquid crystal panel backlight, as shown in Figure 2A, including a side frame 1, a bottom frame 5, a light source array 3 arranged on the bottom frame 5, an optical molding material 4 arranged on the top, and a side frame laid on the side The bottom counter plate 3 on the inside surface of the frame 1 and the bottom frame 5 .

[0017] Wherein, the angle between the inner surface of the side frame 1 and the inner surface of the bottom frame 5 is an acute angle; the shape of the outer edge of the inner surface of the side frame 1 is a triangle; The shape of the surface corresponds to that of a triangle; the bottom reflector 3 laid on the inner surface of the bottom frame 5 has an opening at a position corresponding to the light source array 2 , so that the light source array 2 exposes the bottom reflector 3 . Wherein, each light source in the light source array 2 may be a cold cathode fluorescent tube (abbreviated: CCFL) or may also be a light e...

Embodiment 2

[0021] This embodiment provides another liquid crystal panel backlight. As shown in FIG. 3 , the difference from Embodiment 1 is that the outer edge of the inner surface of the side frame 1 is zigzag. The bottom counter plate 3 laid on the inner surface of the side frame 1 corresponds to the shape of the inner surface, and is also zigzag. And one or more through holes 6 can also be provided at desired positions.

Embodiment 3

[0023] This embodiment provides another liquid crystal panel backlight. The difference from the above embodiments is that the outer edge of the inner surface of the side frame 1 is arched. The bottom counter plate 3 laid on the inner surface of the side frame 1 corresponds to the shape of the inner surface and is also arched. Specifically, it may be a single arch as shown in FIG. 4A ; it may also be a multi-arch as shown in FIG. 4B . And one or more through holes 6 can also be provided at desired positions.

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Abstract

The invention relates to a LCD backlight source, including a lateral framework, a bottom framework, a light source array arranged on the bottom framework, an optical model arranged on the top and a bottom plate arranged on the internal side surface of the lateral framework and the bottom framework. The included angle between the internal side surface of the lateral framework and the internal side surface of the bottom framework is an acute angle; the external shape pf the internal side surface of the lateral framework is a fold line or an arc line; the bottom plate arranged on the lateral framework is corresponding to the shaped of the internal side surface; the bottom plate arranged on the bottom framework is provided with an opening in the corresponding position to the light source array so as to make the light source array out of the bottom plate. The invention changes the internal side surface of the lateral framework in the prior technology into a non-inclined plane structure, thus forming an acute angle with the internal side surface of the bottom framework, so that the invention can reduce or eliminate color spot and light shadow produced on surrounding frames of the liquid crystal panel backlight source due to the optical reflection superimposed effect and further increase the display quality.

Description

technical field [0001] The invention relates to a backlight source, in particular to a frame structure for a backlight source of a liquid crystal panel, and belongs to the structure design technology of the backlight source of a liquid crystal panel. Background technique [0002] The existing liquid crystal panel backlight, as shown in FIG. 1 , includes: a side frame 1 , a bottom frame 5 , a light source array 2 , a bottom counter plate 3 and an optical molding material 4 . Wherein, the bottom reflector 3 is laid on the inner surface of the side frame 1 and the bottom frame 5 for reflecting the light emitted by the light source array 2 to form the desired lighting effect. [0003] The defect of the prior art is that: the inner surface of the side frame 1 has a planar inclined structure relative to the bottom frame 5, so that the bottom reflector 3 laid on the inner surface of the side frame 1 will reflect the light emitted by the light source array 2 to the optical module. ...

Claims

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Application Information

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IPC IPC(8): G02F1/13357F21V21/00G02F1/1335
Inventor 万丽芳
Owner BOE TECH GRP CO LTD
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