US 11,721,253 B2
Demura processing for a display panel having multiple regions with different pixel densities
Kazutoshi Aogaki, Kanagawa (JP); Hirobumi Furihata, Tokyo (JP); and Takashi Nose, Kanagawa (JP)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Aug. 26, 2022, as Appl. No. 17/896,910.
Claims priority of provisional application 63/257,549, filed on Oct. 19, 2021.
Prior Publication US 2023/0120671 A1, Apr. 20, 2023
Int. Cl. G09G 3/20 (2006.01); G09G 3/00 (2006.01)
CPC G09G 3/006 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising,
generating first demura data comprising first correction amounts for pixels in a first region of a display panel, the first region having a first pixel density;
generating second demura data comprising second correction amounts for pixels in a second region of the display panel, the second region having a second pixel density different from the first pixel density;
generating modified second demura data by modifying the second correction amounts of the second demura data by a first factor, wherein the first factor is based on a ratio between an average of the first correction amounts for the pixels in the first region and an average of the second correction amounts for the pixels in the second region;
compressing the first demura data and the modified second demura data to generate compressed demura data; and
providing the compressed demura data and factor information indicative of the first factor to a display driver.