Back light module unit and LCD device

A technology of backlight module and light guide plate, applied in optics, nonlinear optics, static indicators, etc., can solve the problem of low light utilization rate, and achieve the effect of ensuring light output quality, relative position stability, and increasing stability

Inactive Publication Date: 2008-05-14
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problem of low light utilization in the prior art, it is necessary to provide a backlight module with high light utilization

Method used

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  • Back light module unit and LCD device
  • Back light module unit and LCD device
  • Back light module unit and LCD device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] See image 3 , Is an exploded perspective view of the first embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 2 includes a liquid crystal panel 29 and a backlight module 20 disposed adjacent to the liquid crystal panel 29.

[0027] The backlight module 20 includes a light guide plate 27 with a light incident surface 26, a flexible circuit board 21, a plurality of light-emitting elements 25, a fixing sheet 222 and a frame 23. The light guide plate 27, the flexible circuit board 21, a plurality of light-emitting elements 25 and the fixing sheet 222 are housed in the frame 23.

[0028] The flexible circuit board 21 includes a light source setting area 212, and the light emitting element 25 is usually a light emitting diode, which is provided in the light source setting area 212.

[0029] The fixing sheet 222 is a metal sheet body with an L-shaped structure, which includes a first blade 226 and a second blade 228 that in...

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PUM

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Abstract

The invention relates to a BLU and a liquid crystal display device adopting the BLU. The BLU comprises a light guide plate, a flexible circuit board, a frame and a fastening structure, and the light guide plate is positioned in the frame and is provided with a light inlet surface. The flexible circuit board comprises a light source installation area with a luminous element, and the luminous element is arranged between the frame and the light inlet surface of the light guide plate. The fastening structure clamps the flexible circuit board between the frame and the fastening structure.

Description

Technical field [0001] The invention relates to a backlight module and a liquid crystal display device adopting the backlight module. Background technique [0002] Since the liquid crystal in the liquid crystal display panel does not have light-emitting characteristics, in order to achieve the display effect, it is necessary to provide a surface light source device for the liquid crystal display panel to realize the display function, such as a backlight module, whose function is to provide the liquid crystal display panel with sufficient brightness and distribution Uniform plane light. [0003] Generally, the backlight module mainly includes a light source, a light source cover, a light guide plate, a flexible printed circuit (FPC) and other optical components. Each component of the backlight module requires a backlight module frame to fix it during assembly. . [0004] See figure 1 with figure 2 , figure 1 It is a three-dimensional exploded view of a prior art backlight modul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/133
Inventor 张正芳张志清
Owner INNOCOM TECH SHENZHEN
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