Backlight module and liquid crystal display device

A backlight module and light source technology, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., and can solve problems such as uneven light output from backlight modules

Inactive Publication Date: 2013-12-18
XINCHENG TECH CHENGDU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of uneven light output from backlight modules in the prior art, it is necessary to provide a backlight module with uniform light output

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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Experimental program
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Embodiment Construction

[0038] see figure 1 , figure 1 It is a three-dimensional schematic view of the first embodiment of the liquid crystal display device 10 of the present invention. The liquid crystal display device 10 includes a liquid crystal display panel 11 and a backlight module 12 for providing planar light to the liquid crystal display panel 11 . The backlight module 12 includes a light guide plate 13 and a light source 14 . The light guide plate 13 includes a light incident surface 131 , a bottom surface 132 adjacent to the light incident surface 131 , and a light exit surface 133 opposite to the bottom surface 132 . The light source 14 is located on one side of the light incident surface 131 , and includes a substrate 141 , a plurality of first point light sources 142 and a plurality of second point light sources 143 , and a driving chip 144 .

[0039] The substrate 141 includes a carrying surface 145 for disposing the plurality of first point light sources 142 , the plurality of seco...

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Abstract

The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a light guide plate and a light source. The light guide plate comprises a light entering surface, a bottom surface adjacent to the light entering surface and a light-out surface opposite to the bottom surface. The light source comprises a first row of point light sources and a second row of point light sources, the first row of point light sources and the second row of point light sources are located on the same side of the light guide plate and correspond to the light entering surface, the first row of point light sources comprise a plurality of first point light sources arranged at intervals and positioned on a first straight line, the second row of point light sources comprise a plurality of second point light sources arranged at intervals and positioned on a second straight line, the second straight line is different from the first straight line and parallel to the first straight line, and the positions of the plurality of second point light sources correspond to the positions of intervals between the plurality of first point light sources. The backlight module enables light to be emitted evenly.

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. Function. [0003] The backlight module mainly includes a light guide plate, a light source, a reflector and one or more optical films. The light source is usually a point light source or a line light source, and point light s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V19/00F21V8/00G02F1/13357
Inventor 黄星童宋法轮
Owner XINCHENG TECH CHENGDU
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