US 12,392,949 B2
Wide angle imaging directional backlights
Jonathan Harrold, Leamington Spa (GB); and Graham J Woodgate, Henley-on-Thames (GB)
Assigned to RealD Spark, LLC, Boulder, CO (US)
Filed by RealD Spark, LLC, Beverly Hills, CA (US)
Filed on Jun. 21, 2021, as Appl. No. 17/352,497.
Application 17/352,497 is a continuation of application No. 15/595,615, filed on May 15, 2017, granted, now 11,079,619.
Claims priority of provisional application 62/339,081, filed on May 19, 2016.
Prior Publication US 2021/0389516 A1, Dec. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 8/00 (2006.01); G02B 27/01 (2006.01); G02F 1/13 (2006.01); G02F 1/133 (2006.01); G06T 7/70 (2017.01); H04N 7/18 (2006.01); G02F 1/13357 (2006.01); H04N 13/31 (2018.01); H04N 13/383 (2018.01)
CPC G02B 6/0016 (2013.01) [G02B 6/0045 (2013.01); G02B 6/0048 (2013.01); G02B 6/0055 (2013.01); G02B 6/0068 (2013.01); G02B 27/0149 (2013.01); G02F 1/1323 (2013.01); G02F 1/13318 (2013.01); G06T 7/70 (2017.01); H04N 7/183 (2013.01); G02F 1/133615 (2013.01); G02F 2203/12 (2013.01); H04N 13/31 (2018.05); H04N 13/383 (2018.05)] 22 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a directional display device for use in a vehicle arranged to display an image, the directional display device having an angular output light distribution that is adjustable; and
a control system arranged to angularly expand the angular output light distribution of the directional display device on the basis of the output of a gaze sensor system provided on the vehicle indicating that an occupant's gaze is sensed at an angular direction toward the directional display device.