Patent ID: 11908379
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The color temperature calibration method according to claim 6, wherein the third method includes:
determining whether the difference between the measured coordinate in the first direction and the standard coordinate in the first direction is less than the first threshold;
if it is determined that the difference between the measured coordinate in the first direction and the standard coordinate in the first direction is not less than the first threshold, increasing the pixel value of the third sub-pixel, re-obtaining a measured coordinate in the first direction corresponding to the target pixel of which the pixel value of the third sub-pixel is adjusted, and determining a difference between the re-obtained measured coordinate in the first direction and the standard coordinate in the first direction, until the difference between the re-obtained measured coordinate in the first direction and the standard coordinate in the first direction is less than the first threshold; and
if it is determined that the difference between the measured coordinate in the first direction and the standard coordinate in the first direction is less than the first threshold, increasing the pixel value of the second sub-pixel, re-obtaining a measured coordinate in the second direction corresponding to the target pixel of which the pixel value of the second sub-pixel is adjusted, and determining a difference between the re-obtained measured coordinate in
if it is determined that a difference between the measured coordinate in the first direction in the current state and the standard coordinate in the first direction is not less than the second threshold, determining whether the measured coordinate in the first direction in the current state is greater than the standard coordinate in the first direction;
if it is determined that the measured coordinate in the first direction in the current state is greater than the standard coordinate in the first direction, increasing the pixel value of the third sub-pixel;
if it is determined that the measured coordinate in the first direction in the current state is less than the standard coordinate in the first direction, decreasing the pixel value of the third sub-pixel;
re-obtaining a measured coordinate in the first direction corresponding to the target pixel of which the pixel value of the third sub-pixel is adjusted; and
determining a difference between the re-obtained measured coordinate in the first direction and the standard coordinate in the first direction, until the difference between the re-obtained measured coordinate in the first direction and the standard coordinate in the first direction is less than the second threshold; and

if the difference between the measured coordinate in the first direction in the current state and the standard coordinate in the first direction is less than the second threshold, adjusting the pixel values of the second sub-pixel and the third sub-pixel based on a second sub-adjustment mode;
re-obtaining measured color coordinates corresponding to the target pixel of which the pixel values of the second sub-pixel and the third sub-pixel are adjusted;
determining differences between the re-obtained measured color coordinates and the standard color coordinates, until a difference between a re-obtained measured coordinate in the first direction in the re-obtained measured color coordinates and the standard coordinate in the first direction is not greater than the third threshold, and/or a difference between a re-obtained measured coordinate in the second direction in the re-obtained measured color coordinates and the standard coordinate in the second direction is not greater than the third threshold; and, the second direction and the standard coordinate in the second direction, until the difference between the re-obtained measured coordinate in the second direction and the standard coordinate in the second direction is less than a second threshold.