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Light board and backlight assembly comprising the same

A technology of backlight module and light guide plate, which is applied in the direction of optics, nonlinear optics, diffuser elements, etc., can solve the problems of small light divergence angle and small visual angle of liquid crystal display, etc., and achieve the effect of large light divergence angle

Inactive Publication Date: 2007-05-16
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most of the light is emitted substantially perpendicular to the light-emitting surface 123, the light divergence angle of the backlight module 1 using the light guide plate 12 is relatively small, so the viewing angle of the liquid crystal display using the backlight module 1 is relatively small.

Method used

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  • Light board and backlight assembly comprising the same
  • Light board and backlight assembly comprising the same
  • Light board and backlight assembly comprising the same

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Embodiment Construction

[0017] The first embodiment of the backlight module of the present invention is shown in FIG. 3 , FIG. 4 and FIG. 5 , the backlight module 3 includes a light source 31 and a light guide plate 32 . The light guide plate 32 includes a light incident surface 321 , a bottom surface 322 intersecting the light incident surface 321 , and a light exit surface 323 opposite to the bottom surface 322 .

[0018] The light divergence diagram of the light source 31 is shown in FIG. 4 , which divides the light emitted from the light source into light rays of 0-90 degrees, wherein the light rays greater than 0 degrees are located on both sides of the 0 degree light rays. The light source 31 is disposed relative to the light-incident surface 321 , the 90-degree light emitted by the light source 31 is parallel to the light-incident surface 321 , and the 0-degree light is perpendicular to the light-incident surface 321 .

[0019] The bottom surface 322 includes three regions: a first region 326 ...

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Abstract

This invention relates to one light conductive board, which comprises light incidence surface and light in surface, wherein, the bottom surface comprises first area of light incidence and second and third areas on both sides of first area; the first, second and third areas are set with multiple first V shape tanks, second and third tanks; the multiple first V shape extending direction is parallel to the light in surface; the second and third tanks extending direction is crossed to the light in surface and first area and the multiple second tanks and third V tanks are separately between two cross points.

Description

【Technical field】 [0001] The invention relates to a light guide plate and a backlight module using the light guide plate, in particular to a light guide plate and a backlight module applied to a liquid crystal display. 【Background technique】 [0002] Since the liquid crystal in the liquid crystal display panel itself does not have light-emitting characteristics, in order to achieve the display effect, a light source device must be provided for the liquid crystal display panel, such as a backlight module, whose function is to provide a surface light source with sufficient brightness and uniform distribution to the liquid crystal display panel. The light guide plate is a key component of the backlight module. It must have a good optical design, so that the light guide plate can guide the light emitted by the light source and convert it into flat light with a certain brightness and chromaticity. [0003] A prior art backlight module is shown in FIGS. 1 and 2 . The backlight mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02B5/02
Inventor 谢祥晖
Owner INNOCOM TECH SHENZHEN
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