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A direct type backlight module and a liquid crystal display device

A backlight module, direct type technology, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve the problems of the shadow of the support column, affecting the light output effect of the direct type backlight module, etc., to prevent the shadow phenomenon, The effect of improving the backlight effect and display effect

Active Publication Date: 2014-10-01
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • 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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  • A direct type backlight module and a liquid crystal display device
  • A direct type backlight module and a liquid crystal display device
  • A direct type backlight module and a liquid crystal display device

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Embodiment Construction

[0026] see Image 6 , Image 6 It is a schematic three-dimensional structure diagram of an embodiment of the direct type backlight module of the present invention. like Image 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 diffuser plate 804, wherein there are multiple support columns 803 (only one is shown in the figure).

[0027] The light source 802 is arranged on the bottom frame 801 , the diffuser plate 804 is arranged above the light source 802 for uniformly diffusing the light emitted by the light source 802 , and the support column 803 is arranged on the bottom frame 801 and supports the diffuser plate 804 .

[0028] In the following, the embodiment of the present invention analyzes the relationship between the support column 803 itself and the shadow of the support column, as well as the relationship between the distance between the support column 803 and the light sou...

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Abstract

A direct backlight module and a liquid crystal display device are provided. The direct backlight module includes a bottom frame (801), a light source (802), a diffusion plate (804) and a plurality of supporting columns (803). The light source (802) is arranged on the bottom frame (801). The diffusion plate (804) is arranged above the light source (802). The supporting columns (803) are arranged on the bottom frame (801) so as to support the diffusion plate (804). At least one supporting column (803) is made of a first light transmission material or formed by combining a second light transmission material and a light shielding material which are connected up and down. By the above mentioned manner, light emitted by the light source (802) can pass through the supporting columns (803) when being irradiated on the supporting columns (803), so that the phenomenon of the supporting column (803) shadow can be prevented, and the backlight effect and the display effect of the liquid crystal display device can be improved.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a direct type backlight module and a liquid crystal display device. Background technique [0002] With the rapid development of liquid crystal display technology, LED (Light Emitting Diode), one of the backlight sources of liquid crystal display, has continued to increase its market share due to its advantages of thinness, energy saving and no mercury, gradually replacing most CCFLs. (Cold Cathode Fluorescent Lamp, cold cathode fluorescent lamp tube) backlight, and is also gradually used in direct type backlight modules. [0003] The current low-cost direct-lit backlight module technology uses surface-mounted LED technology and is used with a secondary lens to convert the original Lambertian scattering light type emitted by LEDs into a light type with the maximum light intensity occurring at a large viewing angle. like figure 1 , figure 1 It is a schemat...

Claims

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Application Information

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