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Liquid crystal display device and backlight module thereof

A technology for liquid crystal display devices and backlight modules, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., and can solve the problems of narrow color gamuts of three primary colors and sub-pixels

Inactive Publication Date: 2014-12-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is CCFL or white light LED, the light emitted by it is white light with a continuous spectrum distribution, so the color gamut of the three primary color sub-pixels produced after passing through the color filter is narrow.

Method used

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  • Liquid crystal display device and backlight module thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] See figure 1 It discloses a liquid crystal display device 100 according to an embodiment of the present invention, which includes a backlight module 200 and a liquid crystal panel 300.

[0013] The backlight module 200 includes a number of light-emitting units 10 arranged in an array ( figure 1 Only two of them are shown) and the optical film set 20 placed on the light-emitting unit 10. The liquid crystal panel 300 is located on the optical film group 20.

[0014] Each light-emitting unit 10 includes a scanning mirror 11 and a laser light source unit 12. The laser light source unit 12 is used to emit a beam of white light. Since the laser light is collimated light of a single color, monochromatic laser light sources of different colors must be used to generate white light, so that the lights emitted by the monochromatic laser light sources are mixed with each other to generate white light. The laser light source unit 12 includes a first laser light source 121, a second las...

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PUM

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Abstract

The invention provides a liquid crystal display device which comprises a backlight module and a liquid crystal panel located on the backlight module. The backlight module comprises an optical membrane set and a plurality of light emitting units arranged in an array mode, and each light emitting unit comprises a scanning reflecting mirror and a laser light source unit emitting white light. The white light emitted by the laser light source units is reflected by the scanning reflecting mirrors in different directions to be expanded into an area light source, and then the area light source is reflected out of the liquid crystal display device through the optical membrane set and the liquid crystal panel. The invention further relates to the backlight module.

Description

Technical field [0001] The invention relates to a liquid crystal display device and a backlight module used in the liquid crystal display device. Background technique [0002] The current structure of the backlight module of the liquid crystal display device includes the use of cold cathode tube (CCFL) light bar arrays to mix light to produce uniform surface light sources and the use of white light emitting diodes (LEDs) (which are generally monochromatic LEDs covered with white phosphors) array mixing The light produces a uniform surface light source. However, whether it is a CCFL or a white LED, the light emitted is white light with a continuous spectrum distribution. Therefore, the three primary color sub-pixels produced after passing through the color filter have a narrow color gamut. Summary of the invention [0003] In view of this, it is necessary to provide a liquid crystal display device that can solve the above-mentioned problems. [0004] In view of this, it is also nec...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V14/04G02F1/13357
Inventor 曾永昌
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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