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Backlight module and liquid crystal display device

A technology for a liquid crystal display device and a backlight module, which is applied to lighting devices, components of lighting devices, optics, etc., can solve the problems of complex technology of control circuits, high cost, etc., and achieves simple manufacturing process, good uniformity of light output, production low cost effect

Inactive Publication Date: 2010-03-03
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] However, the use of cold-cathode fluorescent tubes with uniform luminescence and the configuration of optical films all require high costs, and the adjustment of the control circuit requires more complicated technology

Method used

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  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

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Embodiment Construction

[0055] In order to improve the light uniformity of the backlight module, the present invention proposes to use reflection areas with different light reflectances to perform luminance compensation for different luminance regions in the backlight module. Therefore, the light uniformity of the backlight module can be compensated without expensive optical films, high-quality lamps, or even circuit adjustments. An implementation example of the backlight module of the present invention will be presented below for illustration, but those skilled in the art of the present invention should know that the scope of the present invention is not limited to this example.

[0056] figure 1 It is a schematic diagram of a backlight module according to an embodiment of the present invention. Please refer to figure 1 , the backlight module 100 includes a light box 110 , at least one light source 120 and a plurality of reflective layers 130 . The light box 110 has a light outlet 112 and a botto...

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Abstract

The invention provides a backlight module comprising a light box and at least one light tube, wherein the light box is provided with a reflecting structure capable of defining that the light box has a first area and a second area with different reflecting rates; the light tube is configured in the light box and has a high-voltage electrode end and a low-voltage electrode end; the second area corresponds to the high-voltage electrode end; the first area corresponds to the low-voltage electrode end and the reflecting rate of the first area is higher than that of the second area. The backlight module has good light emitting equality.

Description

technical field [0001] The present invention relates to a backlight module and a display device, and in particular to a backlight module with good light uniformity and a liquid crystal display device using the backlight module as a display light source. Background technique [0002] The liquid crystal display panel of the liquid crystal display itself does not have the function of emitting light, so an external light source, such as a backlight module, must be used to provide the surface light source required by the liquid crystal display panel to achieve the function of displaying images. Therefore, the light output quality of the backlight module is closely related to the display quality of the liquid crystal display. [0003] Generally speaking, CCFLs are commonly used as light sources in backlight modules, so the luminous quality of CCFLs can be said to be an important key to the quality of surface light sources provided by backlight modules. The two ends of the CCFL tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/09H01J61/00G02F1/13357G02F1/133
Inventor 李宏伦林志宾
Owner INNOLUX CORP
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