Adjustment method and device for gamma circuit

An adjustment device for a gamma circuit, comprising:

• at least one processing unit and at least one storage unit, wherein the storage unit has program codes stored therein, which when executed by the processing unit, cause the processing unit to perform:
• determining a brightness and color coordinates of a white light corresponding to voltage values of a sub-pixel set comprising a red sub-pixel, a green sub-pixel and a blue sub-pixel;
• for a sub-pixel of each color in the sub-pixel set, determining color coordinates of the sub-pixel of the color corresponding to different voltage values of the sub-pixel of the color;
• according to the determined brightness and the color coordinate of the white light and the determined color coordinates of the sub-pixel of each color, determining a correspondence relationship between the brightness of the sub-pixel of each color in the white light and the voltage value of the sub-pixel of each color;
• for any grayscale, according to the brightness of the white light corresponding to the grayscale, determining the brightness of the sub-pixel of each color in the white light corresponding to the grayscale;
• and
• according to the determined correspondence relationship between the brightness of the sub-pixel of each color in the white light and the voltage values of the sub-pixel of each color, determining a target voltage value of the sub-pixel of each color corresponding to the brightness of the sub-pixel of each color in the white light which corresponds to the grayscale.