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Backlight module

A technology of backlight module and block, applied in optics, light guide, light source, etc., can solve the problem of poor clamping effect of plastic frame and so on

Inactive Publication Date: 2011-05-25
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to propose a backlight module, so as to solve the problem of poor clamping effect of the plastic frame in the prior art, and further improve the light incident efficiency of the light entering the light guide plate from the light-emitting diode

Method used

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  • Backlight module
  • Backlight module
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Please refer to image 3 , which is an enlarged schematic diagram of a partial cross-section of a backlight module according to an embodiment of the present invention. The backlight module 1000 includes a circuit board 110 , a light emitting diode 120 , a light guide plate 200 and a first frame 300 . In this embodiment, the first frame 300 includes a bottom 310 and a retaining wall 320 erected on the bottom 310 . The bottom 310 has a bearing surface 310a. The circuit board 110 is disposed on the carrying surface 310 a and fixed on the bottom 310 of the first frame 300 . Preferably, the circuit board 110 of this embodiment is a flexible printed circuit board (Flexible Printed Circuit Board). One side of the light guide plate 200 is stacked on the circuit board 110 , wherein the light guide plate 200 has a light incident surface 210 . The LED 120 is fixed and electrically connected to the circuit board 110 , wherein the LED 120 has a light emitting surface 122 , and t...

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PUM

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Abstract

The invention discloses a backlight module which comprises a first frame, a circuit board, a light guide plate and a light emitting diode. The circuit board is fixed on the first frame; the light guide plate is laminated on the circuit board and is provided with a light incidence face; the light emitting diode is fixed on and electrically connected to the circuit board and is provided with a light emergent face facing the light incidence face; and the light emitting diode is provided with a first flange which extrudes from the light emergent face; and the first flange and the circuit board together clamp the light guide plate.

Description

technical field [0001] The invention relates to a backlight module, in particular to a backlight module of a side light type. Background technique [0002] A current liquid crystal display device is composed of a liquid crystal display panel and a backlight module. The liquid crystal display panel is configured on the backlight module to receive the light provided by the backlight module and display images through the light. [0003] figure 1 It is a partially enlarged top view diagram of a conventional backlight module. figure 2 for along figure 1 The cross-sectional schematic diagram shown by the section line 2-2. Please refer to figure 1 as well as figure 2 . The existing backlight module 2000 includes an iron frame 2110 , a printed circuit board 2120 , a plurality of LEDs 2130 , a light guide plate 2140 , a plastic frame 2150 and a multilayer optical film 2160 . [0004] The iron frame 2110 has a bearing surface 2112 . The printed circuit board 2120 is located...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V8/00F21V17/10F21V19/00F21V23/00G02F1/13357F21Y101/02
Inventor 张新安郑杰仁许明吉郑嘉弘
Owner AU OPTRONICS CORP