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Backlight module and liquid crystal display device

A technology for a liquid crystal display device and a backlight module, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve the problems of inconvenient replacement of the light source of the backlight module, and achieve the effect of convenient replacement of the light source.

Inactive Publication Date: 2013-10-23
XINCHENG TECH CHENGDU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of inconvenient replacement of the light source of the backlight module in the prior art, it is necessary to provide a backlight module that is convenient for replacing the light source

Method used

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  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

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Embodiment Construction

[0042] see figure 1 , figure 2 and image 3 , figure 1 is an exploded perspective view of the first embodiment of the liquid crystal display device 10 of the present invention, figure 2 yes figure 1 The three-dimensional assembly diagram of the liquid crystal display device 10 shown, image 3 yes figure 2 The schematic cross-sectional view of the liquid crystal display device 10 along line III-III is shown. The liquid crystal display device 10 includes a liquid crystal display panel 11 and a backlight module 12 opposite to the liquid crystal display panel 11 . The backlight module 12 provides uniform planar light for the liquid crystal display panel 11 .

[0043] The backlight module 12 includes an optical film 13 , a light guide plate 14 , a light source 15 , a reflection sheet 16 , a first frame 17 and a second frame 18 . The first frame 17 includes a backboard 171 and sidewalls 172 vertically extending along the edge of the backboard 171 for supporting and accomm...

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Abstract

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a light source, a light guide plate, a reflective sheet and a frame. The frame comprises a back plate and a side wall. The reflective sheet and the light guide plate are sequentially arranged on the back plate, and the light source is arranged on one side of the light entering face of the light guide plate and comprises a base body and a light-emitting element fixed on the base body. The backlight module is characterized in that the reflective sheet comprises a main body part clamped between the light guide plate and the back plate and an extending part extending towards one side where the light source is located, the extending part comprises a first opening corresponding to the light-emitting element, a second opening is located at the position of the back plate corresponding to the extending part, the light-emitting element penetrates through the first opening to be arranged on one side of the light entering face of the light guide plate, and the base body is fixed on the extending part and exposed from one side of the back plate away from the light guide plate through the second opening. According to the backlight module, light source replacement is facilitated.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display device. Background technique [0002] Liquid crystal display devices have been widely used in mobile phones, personal digital assistants, notebook computers, personal computers, and televisions due to their low radiation, small size, and low power consumption. Since the liquid crystal panel itself of the liquid crystal display device does not have light-emitting characteristics, in order to achieve the display effect, it is necessary to provide the liquid crystal panel with a backlight module to provide the liquid crystal panel with sufficient brightness and evenly distributed plane light, thereby realizing the display of the liquid crystal display device. Features. [0003] The backlight module mainly includes a light guide plate, a light source, a reflector, one or more optical films to carry and accommodate the lower frame (also called back-cover) for the above components, and...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00G02F1/13357
Inventor 黄星童宋法轮
Owner XINCHENG TECH CHENGDU
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