COLOR TEMPERATURE ADJUSTMENT METHOD AND DEVICE Russian patent published in 2018 - IPC G09G3/36 G09G3/34 

FIELD: image forming devices.

SUBSTANCE: invention relates to the color temperature adjustment means. Obtaining the pixel color coordinates value in the liquid crystal (LCD) display when the LCD screen displays a white screen. Detecting whether the color coordinates value is in the color coordinates target area, where the color coordinates target area is an area including the color coordinates target value, and the color coordinates target value is the color coordinates value calculated in accordance with the LCD display target color temperature. When the color coordinates value is not in the color coordinates target area, performing the component value adjustment of at least one primary light emission from the N primary light emissions corresponding to said pixel, until this pixel color coordinates value is within the color coordinates target area boundaries due to the adjustment, where N is a positive integer. Adjusting the excitation voltage values for the liquid crystal corresponding to at least one primary light emission from the N primary light emissions, where the excitation voltage value is in positive correlation with the component value.

EFFECT: technical result is in improvement of the display color temperature stability.

11 cl, 5 dwg