US 12,272,334 B2
Method to calibrate the luminance of the display panel
Hyeonju Park, Seoul (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Dec. 18, 2023, as Appl. No. 18/543,654.
Claims priority of application No. 10-2023-0005100 (KR), filed on Jan. 13, 2023.
Prior Publication US 2024/0242694 A1, Jul. 18, 2024
Int. Cl. G09G 5/10 (2006.01)
CPC G09G 5/10 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0693 (2013.01); G09G 2360/16 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of calibrating luminance of a display panel, the method comprising:
driving a display panel with a first grayscale, and capturing, by a camera, the display panel on which a first image configured with the first grayscale is displayed and generating a first panel luminance image based on a first luminance from the first image configured with the first grayscale;
calculating a first calibration value for the first panel luminance image;
applying the first calibration value to the display panel so that the display panel is configured with the first calibration value;
driving the display panel configured with the first calibration value with a second grayscale, capturing, by the camera, the display panel on which a second image configured with the second grayscale is displayed and generating a second panel luminance image based on a second luminance from the second image configured with the second grayscale;
calculating a second calibration value for the second panel luminance image; and
applying the second calibration value to the display panel so that the display panel is configured with the second calibration value.