Use and modify the number gamma of the mipi Interface

In the color management system, in order to produce consistent color effects, it is necessary to correct and characterize the display used to observe the color of the image. In the correction and characterization of the display, parameters such as gamma value, white point coordinate, color temperature, and color of the three-color fluorescent agent are often set. The setting of GAMMA value is crucial, different GAMMA value parameter settings make the brightness and color of the display significantly different. As the main device for output of image information, the gamma value has more practical application value for the experimental data on the effect of LCD colors.

I recently debugged an IPS screen with the IC fl10801. After compiling the initialization code, I found that the screen was partial to a certain color. I thought it was an issue with the RGB color arrangement in the initialization code, modify the parameter to find that the color will be biased towards another color. After verification, it should not be the problem of RGB arrangement. Finally, with the help of Fae in the module factory, remove the digital gamma parameter of the screen, during the compilation verification, the screen only shows a reversed color. After the corresponding register is modified, the screen can be displayed normally.

The following uses fl10801 as an example to describe the function and application of digital Gamma!

The digital gamma is generally used to correct problems caused by screen backlight skewness. If there is no problem with the backlight, this parameter generally does not need to be written. It is not a problem caused by the digital gamma skewness!