US 11,942,009 B2
Display non-uniformity correction
Edward Buckley, Redmond, WA (US); and Michael Yee, Kirkland, WA (US)
Assigned to META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Jun. 29, 2022, as Appl. No. 17/853,561.
Application 17/853,561 is a continuation of application No. 16/998,916, filed on Aug. 20, 2020, granted, now 11,410,580.
Prior Publication US 2023/0015610 A1, Jan. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/00 (2006.01); G02B 27/01 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/002 (2013.01) [G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); G09G 3/2003 (2013.01); G09G 3/2044 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising, by a computing system:
accessing a first value from a first bitmap associated with a first color channel, the first value being associated with a first pixel of the first color channel, wherein the first pixel of the first color channel is associated with a first light-emitting element of the first color channel;
selecting a first mask based on the first value of the first bitmap, the first mask comprising a plurality of first scaling factors;
accessing a second value from a second bitmap associated with a second color channel, the second value being associated with a second pixel of the second color channel, wherein the second pixel of the second color channel is associated with a second light-emitting element of the second color channel, and wherein the first light-emitting element of the first color channel and the second light-emitting element of the second color channel are within a threshold distance in a viewer space as perceived by a viewer and have different positions within respective light-emitting element arrays;
selecting a second mask based on the second value of the second bitmap, the second mask comprising a plurality of second scaling factors;
modifying (1) first component values of the first color channel of an image using the plurality of first scaling factors of the first mask, the first component values being associated with a first pixel region containing the first pixel, and (2) second component values of the second color channel of the image using the plurality of second scaling factors of the second mask, the second component values being associated with a second pixel region containing the second pixel; and
outputting the modified first component values and the modified second component values of the image to a display.