US 12,260,833 B2
Method and apparatus of multi-modal illumination and display for improved color rendering, power efficiency, health and eye-safety
David Wyatt, Austin, TX (US)
Assigned to PIXELDISPLAY, INC., San Jose, CA (US)
Filed by PixelDisplay, Inc., San Jose, CA (US)
Filed on Dec. 12, 2023, as Appl. No. 18/537,747.
Application 18/537,747 is a continuation of application No. 17/714,053, filed on Apr. 5, 2022, granted, now 11,842,699.
Application 17/714,053 is a continuation of application No. 16/846,206, filed on Apr. 10, 2020, granted, now 11,295,680.
Claims priority of provisional application 62/832,792, filed on Apr. 11, 2019.
Claims priority of provisional application 62/832,498, filed on Apr. 11, 2019.
Prior Publication US 2024/0274095 A1, Aug. 15, 2024
Int. Cl. G09G 3/34 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C09K 11/00 (2006.01); F21V 8/00 (2006.01); G02B 5/20 (2006.01); G02F 1/01 (2006.01); G02F 1/167 (2019.01); G02F 1/1677 (2019.01); G03F 7/09 (2006.01); H01L 25/075 (2006.01); H01L 27/15 (2006.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01)
CPC G09G 3/3413 (2013.01) [C09K 11/00 (2013.01); G02B 5/208 (2013.01); G02B 6/0068 (2013.01); G02F 1/01 (2013.01); G03F 7/091 (2013.01); H01L 25/0753 (2013.01); H01L 27/15 (2013.01); H10K 59/352 (2023.02); H10K 59/353 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); G02B 6/0073 (2013.01); G02F 1/167 (2013.01); G02F 1/1677 (2019.01); G02F 2202/30 (2013.01); G09G 2320/0666 (2013.01); H10K 59/38 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A computerized method for operating a display, comprising:
setting, by a display controller, operation of the display to a first mode of operation of the display by:
selecting, by the display controller, a first ratio of active light sources of a plurality of light sources illuminating pixels of the display to generate white light from a group comprising a first distinct white-point color temperature group and a second distinct white-point color temperature group;
selecting, by the display controller, a first illumination strength for the plurality of light sources; and
producing, from the first distinct white-point color temperature group, a first white light, the first distinct white-point color temperature group configured to generate the first white light to have reduced amounts of hazardous blue wavelength content compared with white light generated by the second distinct white-point color temperature group; and
adjusting, by the display controller, the operation of the display to a second mode of operation of the display by:
adjusting, by the display controller, the first ratio of active light sources to a second ratio of active light sources of the plurality of light sources illuminating pixels of the display to generate white light from the second distinct white-point color temperature group;
adjusting, by the display controller, the first illumination strength for the plurality of light sources to a second illumination strength for the plurality of light sources; and
producing, from the second distinct white-point color temperature group, a second white light with a wider display color gamut rendering capability than the first white light from the first distinct white-point illumination source group.