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Digital video process method and device for improving colour contrast of liquid crystal television set

A technology of LCD TV and digital video, which is applied in the direction of brightness and chrominance signal processing circuit, color signal processing circuit, etc. It can solve the problem of poor color and contrast enhancement effect of LCD TV, and achieve the effect of convenient maintenance

Inactive Publication Date: 2006-12-06
HISENSE +1
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Problems solved by technology

[0003] In order to solve the problem of poor color and contrast enhancement effects of LCD TVs in the prior art, the present invention provides a new digital video processing method and device for improving the color contrast of LCD TVs. The research, and the use of programmable logic devices to achieve, and finally achieved the purpose of improving the subjective effect of the LCD TV

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  • Digital video process method and device for improving colour contrast of liquid crystal television set
  • Digital video process method and device for improving colour contrast of liquid crystal television set
  • Digital video process method and device for improving colour contrast of liquid crystal television set

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention mainly involves three aspects: 1. Color optimization method; 2. Comparison optimization method; 3. Input and output standard interface. For the block diagram of the whole machine, see figure 1 shown.

[0030] figure 1 In the process, the circuit board of the whole machine cooperates with the circuit module of the LCD TV through the standard interface of the input signal, and through the I 2 The C bus is used for control, and the standard 24bit digital video signal and synchronous signal are sent in at the same time. The core part is responsible for the signal processing, and the color enhancement and contrast enhancement processing are performed through the color optimization component and the contrast optimization component in turn; the video memory is used to cache the video data and intermediate valu...

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Abstract

The method thereof comprises: a piecewise linear algorithm is used to enhance partial and overall contrast of LCD TV; a two dimensional looking-up table configured with many non-linear parameters given from subjective experience are used to enhance color effect in order to make it match user's subjective vision feeling. The invention also provides an interface definition by which the provided circuit can be conveniently used on the motherboard of LCD TV and its relevant application software can be updated online.

Description

technical field [0001] The invention relates to a digital video processing method and device, in particular to a digital video processing method and device capable of improving the color and contrast text of a liquid crystal television. Background technique [0002] The development of economy and technology makes flat panel display more and more become the mainstream of the market. In recent years, whether it is the actual market performance or various forecasts, it shows that flat panel display is growing at a high speed. Consumers are becoming more rational in purchasing products, and have higher requirements for product quality. Some technical defects inherent in flat panel displays have been paid attention to, specifically in terms of color, contrast, response speed, and clarity. The traditional contrast enhancement algorithm for improving liquid crystal display is based on global histogram stretching, and the enhancement effect is not good in some specific areas; the c...

Claims

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Application Information

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IPC IPC(8): H04N9/64H04N9/77
Inventor 曹建伟黄海华王松丽支运安陈世雷
Owner HISENSE
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