US 12,236,830 B2
Calibrating input display data for seamless transitions in multiple display refresh rates
Chien-Hui Wen, Cupertino, CA (US); and Hsin-Yu Chen, Taoyuan (TW)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 18/273,933
Filed by Google LLC, Mountain View, CA (US)
PCT Filed Jan. 25, 2021, PCT No. PCT/US2021/014902
§ 371(c)(1), (2) Date Jul. 24, 2023,
PCT Pub. No. WO2022/159114, PCT Pub. Date Jul. 28, 2022.
Prior Publication US 2024/0087494 A1, Mar. 14, 2024
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 2320/0247 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0673 (2013.01); G09G 2340/0435 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method comprising:
measuring, from a device having a display panel configured to operate at multiple refresh rates, an optical property of the display panel for an input gray level at a first refresh rate;
measuring, from the device, the optical property of the display panel for a plurality of candidate gray levels at a second refresh rate;
selecting, based on the measured optical property of the display panel for the input gray level and the plurality of candidate gray levels, a corresponding gray level for the input gray level, wherein the corresponding gray level is selected from the plurality of candidate gray levels; and
storing, at the device, the corresponding gray level for the input gray level, wherein subsequent to the storing, the device is configured to adjust input display data using the corresponding gray level for the input gray level when the display panel is transitioning from the first refresh rate to the second refresh rate.