Colour compensation circuit of display and its compensation method

A color compensation and display technology, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of different transmittances, white color temperature differences, inability to make timely adjustments, etc., to achieve the effect of improving color contrast

Active Publication Date: 2008-06-25
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0005] Based on the above, since red, green, and blue colors share a gamma correction curve, and the range of color data on it is also fixed, the three colors will have the same driving voltage, but have different Transmittance, so the white color temperature will have great differences in different gray levels, and it cannot be adjusted in time

Method used

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  • Colour compensation circuit of display and its compensation method
  • Colour compensation circuit of display and its compensation method
  • Colour compensation circuit of display and its compensation method

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Embodiment Construction

[0030] Please refer to figure 1 , which is a structural block diagram of a liquid crystal display according to a preferred embodiment of the present invention. In this embodiment, the color compensation circuit 100 of the display adjusts the original N-bit image data to N+1-bit or more image data and then provides each level of voltage, so that the red, green, Each of the three colors of blue has its own gamma correction curve. Wherein, the color compensation circuit 100 of the display includes an image look-up table circuit 110 , at least N+1-bit data driving circuit 120 and at least N+1-bit data gamma voltage generating circuit 130 . The coupling relationship is that the image look-up table circuit 110 is coupled to an image source and at least N+1 bit data driving circuit 120, and at least N+1 bit data driving circuit 120 is coupled to at least N+1 bit data gamma voltage generating circuit 130 and display panel 140.

[0031] Please also refer to figure 1 and figure ...

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Abstract

The invention discloses a monitor and the color compensating circuit and the compensating method. The color compensating circuit includes image table searching circuit, at least N+1 bits data driving circuit and at least N+1 bits data gamma voltage generating circuit. In the invention, the image table searching circuit adjusts the original N bit image data into N+1 bit or more than N+1 bits image data, then the at least N+1 bits data gamma voltage generating circuit provides each stage with voltage, thus the red, green and blue have their suitable gamma correcting curves, each color in the image data can reach the best intensity and darkness.

Description

technical field [0001] The invention relates to a color compensation circuit, and in particular to a color compensation circuit and a compensation method of a display which can make three colors of red, green and blue have their own optimum operating voltage ranges. Background technique [0002] After the liquid crystal material was discovered in Europe, its practicality was researched and developed in the United States. Japan deeply explored its physical properties and application technologies in various fields, and continued to develop new generations of liquid crystal flat-panel displays. At present, various liquid crystal technologies have been widely used in displays, especially liquid crystal flat panel displays (LCD), and various manufacturers have expanded from TN-LCD (TwistedNematic-Liquid Crystal Display, Twisted Nematic-Liquid Crystal Display) to STN -LCD (Super Twisted Nematic-Liquid Crystal Display, super-twisted nematic liquid crystal display), and expanded to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/02G09G3/36
Inventor 梁建钦
Owner AU OPTRONICS CORP
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