Backlight module and liquid display device thereof

A liquid crystal display device and backlight module technology, which is applied in the direction of lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of too thick frames, light leakage, and the inability to realize narrow frames, etc., and achieve the effect of improving the appearance level

Active Publication Date: 2012-09-26
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem to be solved is that the plastic frame cannot press the light guide plate tightly, causing the reflected light from the side of the light guide plate to exit from the gap between the plastic frame and the light guide plate, resulting in light leakage, and the frame is too thick, and the frame extends to the light guide plate The light-emitting surface makes it impossible to achieve narrow borders

Method used

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  • Backlight module and liquid display device thereof
  • Backlight module and liquid display device thereof
  • Backlight module and liquid display device thereof

Examples

Experimental program
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Embodiment Construction

[0021] Further details will be given below in conjunction with the preferred embodiments shown in the accompanying drawings.

[0022] see figure 2 It is a side sectional view of the backlight module of the first embodiment of the present invention. The backlight module disclosed in this embodiment includes: a light guide plate 100, the light guide plate 100 includes a bottom surface 110, and a light emitting surface 130 opposite to the bottom surface , at least one side toward the light incident surface 140 and at least one side surface, wherein the side surface includes a clamping surface 120, and the clamping surface 120 includes an upper portion 122 and a lower portion 121, wherein the lower portion 121 is a first Inclined surface, the first inclined surface forms an acute angle with the bottom surface 110, the upper surface 122 is a plane perpendicular to the top surface, and the plane shrinks toward the center of the light guide plate 100, the lower surface 121 and the up...

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PUM

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Abstract

The invention discloses a liquid crystal display device which comprises a panel module, a backlight module, a frame and a light source. The backlight module comprises a light guide plate which comprises a bottom surface, an emergent face opposite to the bottom surface, at least one lateral incident face and at least one lateral face. The lateral faces include a clamping face. The frame is used for containing the light guide plate and is provided with an abutting part corresponding to the clamping face, and the abutting part is tightly abutted to the clamping face of the light guide plate to fix the same. The light source is contained in the frame and faces the lateral incident face to allow light to emerge.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display device using the backlight module, in particular to a mechanism design method for fixing a light guide plate by a frame. Background technique [0002] Whether it is a cathode ray tube display device or a liquid crystal display device, the backlight module needs to provide light to display images with sufficient brightness. Under the quality requirements of the liquid crystal display device, the quality of the backlight module also needs to be required. One of them, a good appearance level is basic and highly valued. Market requirements such as bezels, etc., so the above mentioned are all directions for improvement of the backlight module at present. [0003] The components of a liquid crystal display device include: a backplane, a panel module, a light guide plate, a light bar, an optical film, a plastic frame, and a front frame. The panel module, optical film, light bar, and li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V17/10G02F1/13357
CPCG02F2001/133322G02B6/0088F21V17/10F21S8/00G02B6/0055G02B6/0086G02F1/133615G02F1/133322
Inventor 周革革黄建发
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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