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GAMMA correction method of display equipment and device therefor

A technology for display equipment and calibration methods, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as insufficient disclosure, achieve a wide range of applications, and reduce complexity and error.

Inactive Publication Date: 2010-01-06
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This patent does not fully disclose how to use image processing to perform specific calculations, and then obtain the RGB weight value to affect the signal, and determine a target color (one of RGB) to be used for GAMMA correction according to the obtained weight value.

Method used

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  • GAMMA correction method of display equipment and device therefor
  • GAMMA correction method of display equipment and device therefor
  • GAMMA correction method of display equipment and device therefor

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Embodiment Construction

[0024] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0025] Such as figure 1 The display device shown is a display device; a collection device is used to collect brightness and chromaticity values ​​under the gray scale; a computing device is used to calculate the collected brightness and chromaticity values ​​and obtain RGB values; The programmable GAMMA buffer device receives the set value corresponding to RGB, and generates the GAMMA correction reference voltage corresponding to the RGB. In the present invention, the buffer device preferably adopts Buffer. Among them, the values ​​of brightness and chromaticity are obtained through a normalized calculation method to obtain R...

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Abstract

The invention relates to a GAMMA correction device of display equipment, comprising display equipment, an acquisition device, a calculating device and a programmable GAMMA cache device, wherein, the acquisition device is used for acquiring the brightness and colourity numerical value under the gray level, the acquisition device is used for acquiring the brightness and colourity numerical value under the gray level, the calculating device is used for calculating the acquired brightness and colourity numerical value to obtain RCB numerical value; the programmable GAMMA cache device is used for receiving set value of the corresponding RCB to generate a GAMMA correction reference voltage corresponding to the RCB. The invention reduces complexity and inaccuracy brought by adopting a complex hardware manner required by a traditional GAMMA modulation, and has a wide application range, can generate different GAMMA curves on different equipment. While in the traditional manner, an adaptive hardware design is carried out on the same type of equipment.

Description

technical field [0001] The present invention relates to a correction method and device, in particular to a GAMMA correction method and device for display equipment. Background technique [0002] Gamma correction is an important technology for display devices to improve the overall display effect according to the characteristics of the main display device itself. In display systems such as TVs, monitors, and scanners, the actual output image may have a deviation in brightness due to graphics cards or monitors, and Gamma curve correction is a method to correct this image deviation through certain methods. Devices without gamma correction will affect the color brightness of the final output image. [0003] At present, the usual practice is to adjust the GAMMA value on the LCD main board, if the displayed screen can be used to calculate and adjust the GAMMA value. Make each device's LCD screen have its own GAMMA value, so that the display effect can be better, but obviously, t...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G5/02
Inventor 陈雄
Owner HISENSE VISUAL TECH CO LTD
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