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Direct type backlight module group and liquid crystal display device

A backlight module and direct-type technology, which is applied in the direction of lighting devices, fixed lighting devices, lighting device components, etc., can solve the problems of supporting column shadows, affecting the light output effect of direct-type backlight modules, etc., to prevent shadows, Improve the effect of backlight effect and display effect

Active Publication Date: 2012-09-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the light output effect of the direct type backlight module is affected
[0005] Therefore, it is necessary to provide a direct-type backlight module to solve the problem of supporting column shadows in the prior art

Method used

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  • Direct type backlight module group and liquid crystal display device
  • Direct type backlight module group and liquid crystal display device
  • Direct type backlight module group and liquid crystal display device

Examples

Experimental program
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Embodiment Construction

[0030] see Figure 6 , Figure 6 It is a three-dimensional structural schematic diagram of an embodiment of the direct type backlight module of the present invention. Such as Figure 6 As shown, the direct type backlight module of the present invention includes: a bottom frame 801, a light source 802, a support column 803 and a diffusion plate 804, wherein there are multiple support columns 803 (only one is shown in the figure).

[0031] The light source 802 is arranged on the bottom frame 801 , and the diffuser plate 804 is arranged above the light source 802 for uniformly diffusing the light emitted by the light source 802 . The support column 803 is arranged on the bottom frame 801 and supports the diffuser plate 804 .

[0032] Next, the embodiment of the present invention analyzes the relationship between the support column 803 itself and the support column shadow, and the relationship between the distance between the support column 803 and the light source 802 and the s...

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PUM

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Abstract

The invention discloses a direct type backlight module group and a liquid crystal display device. The direct type backlight module group comprises a bottom frame, a light source, a diffusion plate and a plurality of support columns, wherein the light source is arranged on the bottom frame; the diffusion plate is arranged above the light source; the support columns are arranged on the bottom frame and used for supporting the diffusion plate; and at least one support column is made of a first light transmission material or formed by combining a second light transmission material and a light shading material which are connected up and down. Through the adoption of the manner, light emitted by the light source can pass through the support columns when being irritated on the support columns, thereby preventing support column shade from occurring and improving the backlight effect and the display effect.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a direct-lit backlight module and a liquid crystal display device. Background technique [0002] With the rapid development of liquid crystal display technology, LED (Light Emitting Diode, Light Emitting Diode), one of the backlight sources of liquid crystal displays, has continued to increase its market share due to its advantages of thinness, energy saving and mercury-free, gradually replacing most CCFLs. (Cold Cathode Fluorescent Lamp, Cold Cathode Fluorescent Lamp) backlight, and it is also gradually applied to direct-type backlight modules. [0003] The current low-cost direct-type backlight module technology uses surface-mounted LED technology and is used with a secondary lens to change the original Lambertian light pattern of LED light into a light pattern with maximum light intensity occurring at a large viewing angle. Such as figure 1 , figure 1 It is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/00G02F1/13357F21Y101/02
CPCG02F1/133602G02F1/133606G02F1/1339
Inventor 张光耀刘红叶符攀攀
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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