US 12,387,652 B2
Dynamic Vreset and VSSEL tuning for better low gray accuracy and power saving
Mahdi Farrokh Baroughi, Santa Clara, CA (US); Hopil Bae, Palo Alto, CA (US); Seung B Rim, Pleasanton, CA (US); Haitao Li, Mountain View, CA (US); Sunmin Jang, Sunnyvale, CA (US); and Ce Zhang, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 1, 2023, as Appl. No. 18/204,927.
Claims priority of provisional application 63/357,493, filed on Jun. 30, 2022.
Prior Publication US 2024/0005833 A1, Jan. 4, 2024
Int. Cl. G09G 3/20 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/2007 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/041 (2013.01); G09G 2330/021 (2013.01); G09G 2354/00 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An electronic display device, comprising:
one or more self-emissive pixels comprising respective light-emitting elements;
a temperature sensor configured to determine a temperature of the electronic display device; and
a control circuit configured to cause different values of a reset voltage to be supplied to the one or more self-emissive pixels based at least in part on the temperature, wherein the reset voltage comprises a precharge voltage applied to the respective light-emitting elements, wherein the precharge voltage has a value higher than a source supply voltage, and wherein the control circuit is configured to vary the precharge voltage at least in part based on the temperature.