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LCD device

A liquid crystal display and driver technology, applied in static indicators, instruments, nonlinear optics, etc., can solve the problems of high backlight power consumption, low output brightness, and reduced transmittance, and achieve the effect of increasing the average transmittance

Active Publication Date: 2009-05-27
AU OPTRONICS CORP
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AI Technical Summary

Problems solved by technology

[0004] Although the color gamut (Color Gamut) presented by the liquid crystal display 100 can be made to be more than 100% of the NTSC (National Television Standards Committee, National Television Standards Committee) color gamut by using the color filter 110 and the backlight source 150 with high color rendering properties, However, the output brightness of the liquid crystal display 100 will be significantly reduced due to the low transmittance of the high color rendering color filter 110, so a higher brightness backlight source 150 is required to maintain image brightness, which will result in high backlight power consumption

Method used

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Embodiment Construction

[0050] In order to make the present invention more comprehensible, the liquid crystal display according to the present invention will be described in detail below with specific embodiments together with the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention.

[0051] FIG. 2 is a schematic diagram of a preferred embodiment of the liquid crystal display of the present invention. As shown in FIG. 2 , the liquid crystal display 200 includes a liquid crystal panel 280 and a backlight module 290 . The liquid crystal panel 280 includes a color filter 210 , a liquid crystal layer 220 and a thin film transistor array unit 230 . The backlight module 290 includes a diffusion plate 240 , a first backlight 251 , a first driver 253 , a second backlight 261 and a second driver 263 . The liquid crystal display 200 controls the circuit operation of the thin film transistor array unit 230 according to a plurality of gate signals to ...

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Abstract

The invention provides a liquid crystal display device including a first back-light source, a second back-light source and a liquid crystal panel. The first back-light source provides carmine back light and the second back-light source provides the green back light. The first and second back-light sources are periodically alternatively drived to provide the back light display image. The liquid crystal panel includes a liquid crystal layer and a color filter. A plurality of liquid crystal molecules in the liquid crystal layer are controlled for adjusting the penetration of the back light generated by the first and second back-light sources. The color filter includes a plurality of red pixel area, a plurality of transparent pixel area and a plurality of green pixel area for performing the colorful filtering treatment for the back light penetrating the liquid crystal layer.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display with wide color gamut. Background technique [0002] A liquid crystal display (Liquid Crystal Display; LCD) is a flat panel display widely used at present, which has the advantages of light and thin appearance, power saving and no radiation. Generally speaking, a liquid crystal display includes a color filter, a liquid crystal layer and a backlight. However, due to the limitation of the optical characteristics of the color filter and the liquid crystal layer, the liquid crystal display cannot completely present the true color of the original image. In other words, high color reproduction is an important performance characteristic of the advanced liquid crystal display. [0003] FIG. 1 is a schematic diagram of a known liquid crystal display. As shown in FIG. 1 , the liquid crystal display 100 includes a color filter 110 , a liquid crystal layer 120 , a thin f...

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Application Information

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IPC IPC(8): G02F1/1335G09G3/34
Inventor 徐雅玲林俊良陈建凯廖烝贤
Owner AU OPTRONICS CORP
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