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Backlight module and liquid crystal display

A technology of backlight module and light source, which is applied in the direction of instruments, optics, light guides, etc., can solve problems affecting the quality of liquid crystal displays, etc., and achieve the effects of eliminating brightness differences, eliminating bright spots, and improving uniformity

Inactive Publication Date: 2015-04-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the frame of the liquid crystal display becomes narrower and narrower, bright spots are prone to appear in the area where the light source is set on the liquid crystal display, which greatly affects the quality of the liquid crystal display

Method used

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

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] figure 1 A backlight module 10 according to the first embodiment of the present invention is schematically shown. Such as figure 1 As shown, the backlight module 10 includes a light guide plate 101 and a light source 102 disposed on the light incident side of the light guide plate 101 . An optical film 115 for displaying images is disposed above the light guide plate 101 . The light source 102 is located at the side of the light guide plate 101, so the backlight module 10 is a side-mounted type. figure 2 A liquid crystal display 20 including the backlight module 10 according to the present invention (or the backlight module 40 of the second embodiment below) is shown, in which the installation area 201 and the viewing area 202 of the backlight module are schematically shown.

[0027] The backlight module 10 also includes a light source circuit board 105 electric...

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PUM

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Abstract

The invention relates to a backlight module and a liquid crystal display. The backlight module comprises a light conducting plate, and a light source which is arranged at the light incoming side of the light conducting plate; the light source comprises a plurality of lighting points which are linearly arranged at intervals; reflecting parts are arranged at intervals in the reflecting side of the light source, away from the light conducting plate, wherein the reflecting parts directly face the part between adjacent lighting points; the scattered light irradiated into the intervals can be reflected into the light conducting plate through the reflecting parts. According to the backlight module, the brightness in a light source area is uniform, so that the high brightness point in a liquid crystal display can be completely reduced and even removed.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a backlight module. The invention also relates to a liquid crystal display including the backlight module. Background technique [0002] As a display component of electronic equipment, liquid crystal displays have been widely used in various electronic products. In a liquid crystal display, the liquid crystal itself does not emit light but it can modulate the light from the backlight module to display graphics or characters. Therefore, the structure of the backlight module will directly affect the display effect of the crystal display. [0003] In the prior art, according to the positional relationship between the light source and the light guide plate, the backlight module can be divided into a bottom type and a side type (or side light type). The side-mounted backlight module makes the liquid crystal display thinner and lighter, so the side-mounted backlight module is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V13/02F21V23/00G02F1/13357F21Y101/02
CPCF21S8/00F21V13/02F21V23/003G02F1/133605G02F1/133607G02B6/0031G02B6/0068G02B6/0088G02F1/133615G02F1/1333G02F1/1335G02B6/0083
Inventor 周革革
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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