Unlock instant, AI-driven research and patent intelligence for your innovation.

Gamma correction method and apparatus and uses thereof

A correction method and technology of a memory device, which are applied in the direction of cathode ray tube indicators, televisions, instruments, etc., can solve the problems of influence and poor display quality of flat-panel displays.

Active Publication Date: 2009-12-09
AU OPTRONICS CORP
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

from figure 1 It can be clearly seen that the Gamma curves of grayscale, red, green, and blue at room temperature are significantly different from each other. Therefore, if the Gamma curve is corrected simply by using the Gamma curve of grayscale at room temperature, the plane will be damaged. The display quality of the monitor is adversely affected

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gamma correction method and apparatus and uses thereof
  • Gamma correction method and apparatus and uses thereof
  • Gamma correction method and apparatus and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] figure 2 A structural diagram of a flat panel display device 2 applying the gamma correction device 20 of the present invention is shown. In the figure, the flat panel display device 2 includes: a Gamma correction device 20 , a data driver 22 , a scan driver 24 and a display unit 26 . The above-mentioned gamma correction device 20 uses signal processing to find the most dominant and decisive color in the image signal, so as to output the corresponding gamma correction voltage VG to the data driver 2 . The data driver 26 drives the display unit 26 in conjunction with the operation of the scan driver 24 after receiving the image signal and the Gamma correction voltage VG. In this embodiment, the above-mentioned flat display device 2 is, for example, a liquid crystal display or other flat display devices capable of applying Gamma correction.

[0019] Gamma correction method and one of the implementations of the device

[0020] The gamma correction method suitable for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A gamma correction method and device, which mainly use signal processing methods to first find out the most dominant and decisive color of the image signal in the picture, and then directly perform gamma correction according to the color, so as to realize the independent adjustment of red, green, The image display quality that blue gamma correction can achieve.

Description

technical field [0001] The present invention relates to a calibration method and device, in particular to a Gamma calibration method and device applied to flat panel display devices and applications thereof. Background technique [0002] Gamma correction (Gamma correction) has been widely used in order to improve the image displayed by the flat panel display device. Currently, a source driver circuit in a flat panel display device has only one set of resistor series inside it, which is used to generate a Gamma correction reference voltage. Therefore, the current Gamma corrections of red (R), green (G), and blue (B) cannot be adjusted independently, and only the grayscale Gamma curve at room temperature can be used as a reference for correcting the Gamma correction voltage. [0003] figure 1 Display the grayscale, red, green, and blue Gamma curves at normal temperature, where "W" represents the grayscale at normal temperature. from figure 1 It can be clearly seen that the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00H04N5/14
Inventor 易建宇
Owner AU OPTRONICS CORP