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Liquid crystal display device and control method thereof

A technology of a liquid crystal display device and a control method, which is applied to lighting devices, static indicators, electric lamp circuit layout, etc., and can solve problems such as chromaticity deviation amplification of color pictures, and achieve the effect of precise control

Inactive Publication Date: 2009-02-11
INNOLUX CORP
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Problems solved by technology

[0007] However, since the spectral response of the photo-sensing unit is different from the spectral response of the color filter 121, in other words, the spectral response of the photo-sensing unit and the gain value corresponding to each dominant wavelength in the spectral response of the color filter The variation is not the same, so the chromaticity deviation of the color picture is enlarged to about 8 thousandths

Method used

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  • Liquid crystal display device and control method thereof
  • Liquid crystal display device and control method thereof
  • Liquid crystal display device and control method thereof

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Embodiment Construction

[0019] The liquid crystal display device and the control method thereof according to the preferred embodiments of the present invention will be described below with reference to the related drawings.

[0020] Referring to FIG. 2 , a liquid crystal display device 3 according to a preferred embodiment of the present invention includes a backlight module 31 and a liquid crystal display panel 32 . The liquid crystal display panel 32 has at least a color filter 321, and the backlight module 31 has at least a light-emitting unit 311, a light-sensing unit 312, and an adjusting unit 313, wherein the adjusting unit 313 is electrically connected to the light-emitting unit 311 and the light-sensing unit 312, respectively. connect.

[0021] The optical characteristic of the light sensing unit 312 corresponds to the first spectral response OR1, and the light sensing unit 312 receives the light LT generated by the light emitting unit 311, and filters the light LT according to the first spec...

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Abstract

A liquid crystal display device includes a backlight module and a liquid crystal display panel. The liquid crystal display panel is provided with a colorized light filter. The backlight module is provided with a lighting unit, a light sensing unit and an adjusting unit, wherein, the adjusting unit is respectively and electrically connected with the lighting unit and the light sensing unit; the optical characteristics of the light sensing unit corresponds to a first spectrum response, and the light sensing unit receives the rays generated by the lighting unit and filtrates rays according to the first spectrum response to generate a light intensity signal value; the adjusting unit generates an adjusting signal to adjust the lighting intensity of the lighting unit according to the light intensity signal value and a target light intensity signal value; the optical characteristics of the colorized light filter corresponds to a second spectrum response, and the colorized light filter filtrates rays according to the second spectrum response, wherein the first spectrum response and the second spectrum response are virtually the same.

Description

technical field [0001] The present invention relates to a flat display device and a control method thereof, in particular to a liquid crystal display device and a control method thereof. technical background [0002] With the development of display technology, flat-panel display devices and their products have been widely used, and liquid crystal display devices have gradually replaced traditional cathode ray tube display devices due to their superior characteristics such as thinness, low power consumption, and no radiation. And applied to many kinds of electronic products. [0003] Referring to FIG. 1 , a known liquid crystal display device 1 includes a backlight module 11 and a liquid crystal display panel 12 . The backlight module 11 has a control unit 111 , a driving unit 112 , a plurality of red, green and blue light-emitting diodes 113 (hereinafter referred to as light-emitting diodes) and a light mixing unit 114 , wherein the driving unit 112 is electrically connecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G09G3/36H05B37/02G02F1/1335
Inventor 李永龙
Owner INNOLUX CORP
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