3GAMMA CORRECTION METHOD AND SYSTEM FOR AN OLED DISPLAY MODULE

A 3Gamma correction method and system for an OLED display module. The method comprises: S1, obtaining a correspondence relationship between a register value of an OLED display module (4) and red, green, and blue brightness values, and a correspondence relationship among red, green, and blue tristimulus values; S2, obtaining a first white-color tristimulus value of the OLED display module (4) at a set gray scale, and performing calculation according to a set rule to obtain a theoretical red-color tristimulus value, a theoretical green-color tristimulus value, and a theoretical blue-color tristimulus value; S3, obtaining corresponding red brightness, green brightness, and blue brightness, and correcting a white screen; and S4, collecting actual white brightness and actual white chromaticity coordinates, and if the actual white brightness and the actual white chromaticity coordinates do not conform to target white brightness and target white chromaticity coordinates, compensating first parameter data and then pe