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Backlight module and liquid crystal display device thereof

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 problems such as excessively thick frames, light leakage, and inability to achieve narrow borders, and achieve the effect of improving the appearance level.

Active Publication Date: 2015-10-21
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 crystal display device thereof
  • Backlight module and liquid crystal display device thereof
  • Backlight module and liquid crystal 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

Disclosed is a liquid crystal display device, comprising a panel module and a backlight module. The backlight module comprises: a light guide plate, the light guide plate comprising a bottom surface, a light outgoing surface opposite to the bottom surface, at least one lateral light incident surface, and at least one lateral surface, wherein the lateral surface comprises a clamping surface; a frame, used for accommodating the light guide plate, the frame having an abutting piece arranged corresponding to the clamping surface, and the abutting piece tightly abutting against the clamping surface of the light guide plate, so as to fix the light guide plate; and a light source, accommodated in the frame and emitting light to the lateral light incident surface.

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 Patents(China)
IPC IPC(8): F21S8/00F21V17/10G02F1/13357
CPCG02B6/0088G02B6/0055G02F1/133615G02F2001/133322G02F1/133322
Inventor 周革革黄建发
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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