Backlight module, display and manufacturing method of reflecting cover of backlight module

A technology of a backlight module and a reflector, which is applied in the field of surface light source devices, can solve the problems of increasing the number of light-emitting diodes used and the production cost of the backlight module 100, and achieve the effects of improving display quality, improving uniformity, and increasing light mixing distance.

Inactive Publication Date: 2010-10-20
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this will increase the number of LEDs 114 used, resulting in an increase in the production cost of the backlight module 100

Method used

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  • Backlight module, display and manufacturing method of reflecting cover of backlight module
  • Backlight module, display and manufacturing method of reflecting cover of backlight module
  • Backlight module, display and manufacturing method of reflecting cover of backlight module

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Embodiment Construction

[0050] figure 2 is a three-dimensional schematic diagram of a backlight module according to an embodiment of the present invention, and image 3 yes figure 2 sectional schematic diagram. Please refer to figure 2 and image 3 , the backlight module 200 of this embodiment includes a light guide plate 210 , a reflector 220 and a plurality of point light sources 230 . The light guide plate 210 has a light incident surface 212 , and the reflector 220 is disposed beside the light incident surface 212 . The reflection cover 220 includes a reflection portion 221 , and the reflection portion 221 is provided with a plurality of microstructures 222 . The point light source 230 is used to respectively provide light 232 to the reflective part 221 , and the reflective part 221 is used to reflect the light 232 to the light incident surface 212 .

[0051]The above-mentioned light guide plate 210 also has opposite light-emitting surface 214 and bottom surface 216 , wherein the light-i...

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Abstract

The invention provides a backlight module, a display and a manufacturing method of a reflecting cover of the backlight module. The backlight module comprises a light guide plate, a reflecting cover and a plurality of point light sources. The light guide plate is provided with a light incident surface, and the reflecting cover is arranged on the light incident surface. The reflecting cover comprises a reflecting part. The point light sources are used for respectively providing light rays for the reflecting part, and the reflecting part is used for reflecting the light rays to the light incident surface. Because the light rays can enter the light guide plate only by being reflected by the reflecting cover, the uniformity degree of an area light source provided by the backlight module can be improved.

Description

technical field [0001] The present invention relates to a surface light source device, and in particular to a backlight module, a display using the backlight module and a manufacturing method for a reflector of the backlight module. Background technique [0002] The backlight module is applied in the display device to provide the display light source required by the display panel. Traditional backlight modules use cold cathode fluorescent lamps (cold cathode fluorescent lamp, CCFL) as light sources. However, in recent years, because the production technology of light emitting diodes (LEDs) has gradually matured, and the light emitting diodes have the advantages of small size and power saving, etc., light emitting diodes have been gradually and widely used in backlight modules. [0003] figure 1 It is a partial three-dimensional schematic diagram of an existing backlight module using light emitting diodes and a liquid crystal display panel. Please refer to figure 1 , the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V8/00F21V7/10G02F1/13357
Inventor 陈俊名沈文斌邱鹏严吴居郇
Owner AU OPTRONICS CORP
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