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Back light module and optical plate

A backlight module and optical board technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem of uneven light output from the backlight module 100

Inactive Publication Date: 2008-10-29
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matching design of the light emitting diode 105 and the reflector 107 can reduce the bright area directly above the light emitting diode 105 to a certain extent, but the backlight module 100 still has the problem of uneven light emission.

Method used

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  • Back light module and optical plate
  • Back light module and optical plate
  • Back light module and optical plate

Examples

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Embodiment Construction

[0025] The backlight module and its optical plate of the present invention will be further described in detail below with reference to the drawings and embodiments.

[0026] Please also refer to image 3 , Figure 4 and Figure 5 , the first preferred embodiment of the present invention provides an optical plate 20 . The optical plate 20 has a square shape and includes a plurality of optical plate units 21 arranged closely in an array. Each optical plate unit 21 includes a bottom surface 213 and a light emitting surface 215 opposite to the bottom surface 213 . A light source receiving portion 211 is defined at the center of the bottom surface 213 . In this embodiment, the light source receiving portion 211 is a through hole penetrating from the bottom surface 213 to the light emitting surface 215 . The bottom surface 213 is formed with a plurality of micro-protrusions 214 located around the light source containing portion 211 . The light emitting surface 215 forms a plur...

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PUM

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Abstract

The invention relates to a backlight module and an optical plate thereof. The optical plate comprises at least one optical plate unit which includes a first surface and a second surface opposite to the first surface. A plurality of tiny bulges are formed on the first surface, and each tiny bulge comprises at least three sides which are interconnected, the horizontal width of each side is gradually decreased along the direction which is far away from the first surface. A plurality of spherical bulges are formed on the second surface, and at least one of the first surface and the second surface is provided with at least one light source containing part. The backlight module adopting the optical plate has the advantage of even light emission.

Description

technical field [0001] The invention relates to a backlight module and its optical board, in particular to a backlight module for liquid crystal display and its optical board. Background technique [0002] Since the liquid crystal itself of the liquid crystal display panel does not have luminescent properties, in order to achieve the display effect, it is necessary to provide the liquid crystal display panel with a light source device, such as a backlight module. The function of the backlight module is to supply a surface light source with sufficient brightness and uniform distribution to the LCD panel. [0003] Please also see figure 1 and figure 2 , shows a conventional backlight module 100 , which includes a frame 101 , a reflector 102 , a diffuser 103 , a prism sheet 104 and at least one side-view LED 105 . The frame 101 includes a rectangular bottom plate 1011 and four sidewalls 1013 vertically extending from the edge of the bottom plate 1011 to the same side thereo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/00G02B6/00G02F1/13357G02F1/1335
CPCG02B5/045G02B6/0036G02B6/003G02B3/0056G02B6/0021
Inventor 章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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