Backlight module and application thereof

A backlight module and chromatic light technology, applied in optics, light guides, electric light sources, etc., can solve problems such as unfavorable display thinning, high-order diffracted light crosstalk, and lower color saturation of display panels, so as to improve light extraction efficiency and save raw materials Effect of cost and optical film reduction

Active Publication Date: 2016-11-23
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the light absorption efficiency that can be improved by omitting the color filter still has its limit, and the use of prism microstructures for light splitting must occupy a considerable thickness space, which is not conducive to the thinning of the display
The prism structure has a very high wavelength selectivity, so the angle of the diffracted outgoing light is highly correlated with the wavelength. This feature is likely to cause crosstalk of high-order diffracted light between different colors of light and reduce the color saturation of the display panel.

Method used

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  • Backlight module and application thereof
  • Backlight module and application thereof
  • Backlight module and application thereof

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Embodiment Construction

[0073] The invention provides a backlight module with a waveguide and a display device using the backlight module, which can reduce the use of optical films and save power while improving the light extraction efficiency of the display device. Further, the purpose of saving raw material cost and making the display thinner is achieved. In order to make the above-mentioned embodiments and other objectives, features and advantages of the present invention more comprehensible, several preferred embodiments are specifically cited below and described in detail with the accompanying drawings.

[0074] However, it must be noted that these specific implementation cases and methods are not intended to limit the present invention. The invention can still be implemented with other features, elements, methods and parameters. The proposal of the preferred embodiment is only used to illustrate the technical features of the present invention, and is not used to limit the claims of the present...

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Abstract

Disclosed is a backlight module. The backlight module comprises at least one light source, a plurality of wave guides and a plurality of periodical micro structures. The at least one light source can provide a plurality of beams of colored light. The wave guides are opto-coupled to the colored light, and thus each beam of colored light can be correspondingly transmitted in one wave guide. The periodical micro structures are arrayed on one of the wave guides at certain intervals and used for taking the colored light out of the wave guides.

Description

technical field [0001] The present invention relates to a backlight module and a display device using the backlight module, and in particular to a backlight module with a wave guide and a display device using the backlight module. Background technique [0002] The current display devices are mostly developed towards the trend of power saving, thinning and high luminance. However, known display devices, for example please refer to figure 1 For liquid crystal displays, after the light L1 exits the backlight module 100, it must pass through various optical films, such as a light guide plate 101, a polarizer (polarizer) 102, a liquid crystal layer 103, a color filter (color filter) 104, and a spectrophotometer. Sheet (analyer) 105 and surface reflective sheet (surface reflection) 106 can be displayed by. After the light is absorbed layer by layer, the light extraction efficiency is quite low, which consumes a lot of power, and it is difficult to improve the brightness. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V8/00G02F1/13357
Inventor 陈宏宾
Owner INNOLUX CORP
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