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Straight-down type back-light module group and liquid-crystal display

A backlight module, direct type technology, applied in static indicators, instruments, optics, etc., can solve the problems of small light outlet area, low brightness of liquid crystal display, low light utilization rate, etc., to increase the area and improve the light utilization rate , the effect of improving brightness

Inactive Publication Date: 2009-02-25
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of small light outlet area and low light utilization rate of the direct-type backlight module in the prior art, it is necessary to provide a direct-type backlight module with a large light outlet area and high light utilization rate
[0006] In order to solve the problem of low brightness of liquid crystal displays in the prior art, it is necessary to provide a liquid crystal display with higher brightness

Method used

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  • Straight-down type back-light module group and liquid-crystal display
  • Straight-down type back-light module group and liquid-crystal display
  • Straight-down type back-light module group and liquid-crystal display

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Embodiment Construction

[0020] see Figure 4 , is a schematic cross-sectional view of the first embodiment of the liquid crystal display of the present invention. The liquid crystal display 100 includes a liquid crystal panel 110 and a direct-type backlight module 190; the direct-type backlight module 190 includes a light enhancement sheet 120, a diffusion plate 130 and a light source portion 191; the liquid crystal panel 110, the light enhancement sheet 120, The diffusion plate 130 and the light source part 191 are stacked.

[0021] The light source part 191 of the direct type backlight module of the first embodiment of the liquid crystal display of the present invention is as follows: Figure 5 , Figure 6 and Figure 7 shown. The light source part 191 of the direct type backlight module includes a frame body 140 , a reflection unit 150 , a diffuse reflection unit 151 and four lamp tubes 160 . The frame body 140 has a light outlet 180; the reflection unit 150 and the diffuse reflection unit 151 ...

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Abstract

The present invention relates to a direct down type backlight module and a liquid crystal display device. It contains one frame, one reflector element, one diffuse reflection unit and one lamp tube; wherein said lamp tube having at least one straight tube part and at least one elbow part, said frame having one light outgoing port, said diffuse reflection unit and said lamp tube in turn set in said frame, said diffuse reflection unit located lower side of said elbow part. Said invention has large light outgoing port area and high light utilization ratio.

Description

【Technical field】 [0001] The invention relates to a direct type backlight module and a liquid crystal display. 【Background technique】 [0002] The backlight module is a key component of the liquid crystal display, which can provide a light source with sufficient brightness to enable the liquid crystal panel to display normally. The structure of the backlight module is roughly divided into two types: side-light type and direct-light type. As the size of liquid crystal displays increases and the brightness requirements increase, edge-lit backlight modules cannot provide sufficient brightness. Therefore, direct-lit backlight modules are widely used, which can increase the brightness by increasing the number of lamp tubes. [0003] The structure of a prior art direct type backlight module 9 is as follows: figure 1 , figure 2 and image 3 As shown, it includes a frame body 1, a reflector 2 and a lamp tube 3, and the reflector sheet 2 and the lamp tube 3 are sequentially arran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/133
Inventor 林科黄郁良付志峰
Owner INNOCOM TECH (SHENZHEN) CO LTD
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