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Edge-type backlight module and liquid crystal display

A side-entry backlight and liquid crystal display technology, which is applied in the direction of instruments, optics, electric light sources, etc., can solve the problems of thermal expansion and contraction of light guide plates

Inactive Publication Date: 2011-04-06
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The secondary object of the present invention is to provide a side-type backlight module and a liquid crystal display, by arranging the elastic element at the other end of the light guide plate relative to the light emitting device, to ensure that the distance between the light guide plate and the light emitting device is fixed, and provide Stable light source to solve the problem of thermal expansion and contraction of the light guide plate

Method used

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  • Edge-type backlight module and liquid crystal display
  • Edge-type backlight module and liquid crystal display
  • Edge-type backlight module and liquid crystal display

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Embodiment Construction

[0037] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings:

[0038] Please also refer to Figure 2 to Figure 4 As shown, figure 2 A partial side cross-sectional view of the edge-lit backlight module according to the first embodiment of the present invention is disclosed; image 3 A partial three-dimensional exploded view of the edge-lit backlight module according to the first embodiment of the present invention is disclosed; and Figure 4 A partial three-dimensional assembly diagram of the edge-type backlight module according to the first embodiment of the present invention is disclosed.

[0039] Such as Figure 2 to Figure 4 As shown, an edge-type backlight module 10 includes a back plate 11, a light guide plate 12, an optical film set 13, a fixing frame 14 and a light emit...

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PUM

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Abstract

The invention discloses an edge-type backlight module and a liquid crystal display. The edge-type backlight module comprises a back plate, a light guide plate, a fixing frame and a light-emitting device, wherein the fixing frame encases and fixes the light guide plate on the back plate, a circuit board of the light-emitting device is arranged at the outer side of the fixing frame, and the fixing frame is provided with at least one light inlet opening corresponding to at least one light-emitting element of the light-emitting device. In the invention, a lateral light source required by the light guide plate can be provided through the light inlet onpenging, but most of heat energy generated by the light-emitting device can be isolated.

Description

【Technical Field】 [0001] The invention relates to an edge-type backlight module and a liquid crystal display, and in particular to an edge-type backlight module and a liquid crystal display with a thermal isolation function. 【Background technique】 [0002] In the field of liquid crystal display panels (LCD panel), the use of light-emitting diodes (LED) as a backlight source has advantages in energy saving and environmental protection over cold cathode fluorescent lamps (CCFL). Therefore, replacing CCFL with LEDs will be the trend of backlight development, but the heat dissipation of LEDs The problem is still an important factor affecting its development. Please refer to figure 1 As shown, figure 1 It is a side sectional view of an existing side-lit backlight module. The side-lit backlight module 90 includes a back plate 91, side walls 911 are provided on both sides of the back plate heat dissipation structure 91, and a light guide plate 92 is carried in the center of the back pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V17/00F21V19/00F21V29/00F21V7/00G02F1/13357
CPCG02F1/133615G02F1/133608
Inventor 阙成文
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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