US 12,230,199 B2
Maintaining luminance when refresh rate changes
Ken Kok Foo, Sunnyvale, CA (US); John William Kaehler, Mountain View, CA (US); and Chien-Hui Wen, Cupertino, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Mar. 28, 2024, as Appl. No. 18/620,973.
Application 18/620,973 is a continuation of application No. 17/593,414, granted, now 11,972,723, previously published as PCT/US2020/070442, filed on Aug. 21, 2020.
Prior Publication US 2024/0265859 A1, Aug. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3208 (2016.01)
CPC G09G 3/3208 (2013.01) [G09G 2320/0247 (2013.01); G09G 2320/0626 (2013.01); G09G 2340/0435 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a computing device, a first image for presentation by a display device, the first image specifying a first encoded intensity level for a first pixel of the first image;
presenting, by the computing device, the first image on the display device at a first refresh rate, including by sending a signal with a first intensity level to a pixel of the display device at which the first pixel of the first image is presented, based on the first image specifying the first encoded intensity level for the first pixel of the first image and the computing device presenting the first image at the first refresh rate;
identifying, by the computing device, that the computing device has switched from presenting content at the first refresh rate to presenting content at a second refresh rate, wherein the second refresh rate is greater than the first refresh rate, such that a rate of refresh of the display device by increased, when switching from the first refresh rate to the second refresh rate;
receiving, by the computing device, a second image for presentation on the display device, the second image specifying the first encoded intensity level for a second pixel of the second image; and
presenting, by the computing device, the second image on the display device at the second refresh rate, including by sending a signal with a second intensity level to a pixel of the display device at which the second pixel of the second image is presented, based on the second image specifying the first encoded intensity level for the second pixel of the second image and the computing device presenting the second image at the second refresh rate, wherein the second intensity level is lower than the first intensity level, such that the intensities of signals sent to pixels that presented content having the first encoded intensity level decreased, when switching from the first refresh rate to the second refresh rate.