US 9,810,944 B2
Techniques for dual modulation with light conversion
Chun Chi Wan, Campbell, CA (US); and Ajit Ninan, San Jose, CA (US)
Assigned to Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
Appl. No. 15/505,432
Filed by Dolby Laboratories Licensing Corporation, San Francisco, CA (US)
PCT Filed Aug. 20, 2015, PCT No. PCT/US2015/046074
§ 371(c)(1), (2) Date Feb. 21, 2017,
PCT Pub. No. WO2016/028994, PCT Pub. Date Feb. 25, 2016.
Claims priority of provisional application 62/040,352, filed on Aug. 21, 2014.
Prior Publication US 2017/0242301 A1, Aug. 24, 2017
Int. Cl. G09G 3/36 (2006.01); G02F 1/1335 (2006.01); G09G 3/34 (2006.01)
CPC G02F 1/133609 (2013.01) [G09G 3/3426 (2013.01); G02F 2001/133601 (2013.01); G02F 2001/133614 (2013.01); G02F 2202/36 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0646 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus comprising:
logic controlling one or more illumination sources of a backlight configured to emit first light onto one or more light conversion layers, the one or more light conversion layers configured to be stimulated by the first light and to convert at least a portion of the first light into second light;
logic to control one or more light modulators, the one or more light modulators configured to modulate light transmitting through individual elements;
logic to perform at least one light field simulation for a backlight point spread function to determine intermediate drive values for the one or more light modulators;
logic to determine a compensation light field to adjust the intermediate drive values for the one or more light modulators to mitigate spatial non-uniformity of the second light.