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Backing structure of LCD

A liquid crystal display, backlight module technology, applied in optics, instruments, optical components, etc., can solve the problem of unable to meet the color saturation of the display, and achieve the effect of good color reproducibility, high NTSC, and color gamut enhancement

Inactive Publication Date: 2007-08-15
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that even when light-emitting diodes are used instead of cold-cathode fluorescent tubes as the light source, it still cannot meet the color saturation requirements of the display.

Method used

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  • Backing structure of LCD
  • Backing structure of LCD
  • Backing structure of LCD

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Embodiment Construction

[0023] In view of this, in order to reduce the loss caused by the color filter to the light spectrum emitted by the light source, the present invention designs a filter layer to be located at the light exit such as a light emitting diode, and uses this filter layer to filter in advance, that is, Filter out the overlapping portion of the wavelength of the blue light emitted by the light source and the green light part, or filter out the overlapping part of the wavelength of the red light emitted by the light source and the green light part, so that the red (R) and blue (B) rays passing through the color filter ), the green (G) spectrum is separated to purify the light, so the display can obtain higher NTSC and better color reproducibility.

[0024] Please refer to FIG. 4 a , which is a structural view of a display device according to a preferred embodiment of the present invention. The display device 200 includes a backlight module 210 and a display panel 240 . The backlight mo...

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Abstract

This invention relates to one aphototropism module or display device, wherein, the light source top has one filter slice to filter one part of light and the part of light comprises red light, green light and blue light for two overlap parts; when light sends emission light through filter slice to remove above overlap light to improve light line purification with the filter display to improve its color saturation degree.

Description

technical field [0001] The invention relates to a backlight module and a display device, and in particular to a backlight module and a display device with better color saturation, and a method for increasing the color gamut of the display device. Background technique [0002] The next generation of large-size displays, such as LCD TVs, are being extensively researched and developed, because LCD TVs have the advantages of large size, excellent picture quality, high brightness, and wide viewing angles; however, LCD TVs do not emit light themselves, so they are used in The backlight module of LCD TV plays a very important role. [0003] The light source of the existing backlight module includes cold cathode fluorescent lamps (cold cathode fluorescent lamps, CCFL), light emitting diodes (light emitting diodes, LED), external electrode fluorescent lamps (external electrode fluorescent lamps, EEFL), field emission devices (field emission devices, FED), or flat lamp plates. At pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/136G02B5/00G02B5/23G02B5/30G02B1/10G02F1/1335
Inventor 张之礼黄季仁高宏成孙庆成李正中
Owner HANNSTAR DISPLAY CORPORATION