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Light background module with light collecting function

A backlight module and light collection technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of high cost, inability to improve the profitability of manufacturers, and high production cost of backlight modules

Inactive Publication Date: 2008-11-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

so its cost will be higher
In addition, in the prior art, when the brightness enhancement sheet and the diffusion sheet are assembled, the diffusion sheet is easily scratched, which affects the yield
[0012] Due to the above reasons, the overall production cost of the backlight module is too high, which not only causes the price of the product to remain high, but also makes it difficult for the manufacturer to increase the profit. The impact is that the utilization rate of the LCD cannot be fully popularized.

Method used

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  • Light background module with light collecting function
  • Light background module with light collecting function
  • Light background module with light collecting function

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Embodiment Construction

[0043] Please refer to FIG. 3 , which is a schematic diagram of a backlight module 30 with light collecting function according to the present invention. In the figure, the backlight module 30 is placed under a liquid crystal panel 20 and provides the backlight needed for the liquid crystal panel 20 to display images.

[0044]The present invention discloses an end-illuminated backlight module 30 , which includes a light guide plate 31 , a light source 32 and a set of three diffusers 33 . The light guide plate 31 is a light-permeable wedge-shaped plate structure, and its material is mainly acrylic, wherein the upper surface of the light guide plate 31 is a light-emitting surface 311 corresponding to the liquid crystal panel 20, and one side surface is a light-incoming surface 312 A plurality of diffusion points 313 are formed on the lower surface of the light guide plate 31 , and a reflective plate 34 is disposed below it. The light emitting source 32 mostly adopts a cold cathod...

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PUM

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Abstract

A photonegative module for collecting light consists of a light guide plate including light incoming face and light outgoing face corresponding to liquid crystal panel, lightening source for emitting light in light guide plate and outgoing the light from light outgoing face, a set of dispersion sheet being overlapped above light outgoing face for collecting light emitted out from light outgoing face. The collected light can be used as photonegative source for displaying image on liquid crystal panel.

Description

technical field [0001] The invention relates to a backlight module of a liquid crystal panel, in particular to a backlight module with light collecting function. Background technique [0002] With the rapid advancement of thin-film transistor manufacturing technology and its advantages of lightness, thinness, power saving, and no radiation, LCD panels are widely used in personal digital assistants, notebook computers, digital cameras, televisions, and mobile phones. In various electronic products such as telephones. However, since the liquid crystal panel is a non-self-illuminating display device, it must be assisted by the backlight provided by the backlight module to display the picture information of the liquid crystal panel. [0003] Please refer to FIG. 1A and FIG. 1B , which are schematic diagrams of an enhanced brightness backlight module in the prior art. In the figure, the backlight module 10 includes a light guide plate 11 , a light source 12 , a reflector 13 and...

Claims

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Application Information

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IPC IPC(8): G02F1/1335
Inventor 刘曜旗
Owner AU OPTRONICS CORP