US 12,072,577 B2
Horizontal parallax multiview backlight, display, and method
David A. Fattal, Menlo Park, CA (US); Thomas Hoekman, Redwood City, CA (US); and Ming Ma, Menlo Park, CA (US)
Assigned to LEIA INC., Menlo Park, CA (US)
Filed by LEIA INC., Menlo Park, CA (US)
Filed on May 3, 2023, as Appl. No. 18/142,901.
Application 18/142,901 is a continuation of application No. PCT/US2021/056899, filed on Oct. 27, 2021.
Claims priority of provisional application 63/111,209, filed on Nov. 9, 2020.
Prior Publication US 2023/0276042 A1, Aug. 31, 2023
Int. Cl. G02F 1/13357 (2006.01); F21V 8/00 (2006.01); G02B 30/33 (2020.01); G09G 3/3208 (2016.01); G09G 3/34 (2006.01); H04N 13/32 (2018.01); H04N 13/349 (2018.01); H04N 13/351 (2018.01)
CPC G02F 1/133606 (2013.01) [G02B 6/0073 (2013.01); G02B 30/33 (2020.01); G09G 3/3208 (2013.01); G09G 3/3426 (2013.01); H04N 13/32 (2018.05); H04N 13/349 (2018.05); H04N 13/351 (2018.05); G09G 2320/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A multiview backlight comprising:
a first array of active emitters arranged as spaced-apart columns, each column of the first active emitter array being configured to provide a first plurality of directional light beams during a first time interval, the first plurality of directional light beams having directions corresponding to view directions of a multiview display; and
a second array of active emitters arranged as spaced-apart columns disposed between and alternating with the columns of the first active emitter array, each column of the second active emitter array being configured to provide a second plurality of directional light beams during a second time interval, the first and second time intervals being alternating sequential time intervals, the second plurality of directional light beams having directions corresponding to the view directions of the multiview display,
wherein the view directions of the multi view display are in a plane that crosses the columns of first and second active emitter arrays,
wherein the columns of the first and second active emitter arrays are slanted, and wherein a width of the columns of the first and second active emitter arrays is between one quarter and two times a size of a light valve of the multiview display.