US 11,991,343 B2
Optical method and system for light field displays based on distributed apertures
Jukka-Tapani Makinen, Oulu (FI); and Kai Ojala, Oulu (FI)
Assigned to InterDigital Madison Patent Holdings, SAS, Paris (FR)
Appl. No. 17/616,140
Filed by InterDigital Madison Patent Holdings, SAS, Paris (FR)
PCT Filed Jun. 5, 2020, PCT No. PCT/US2020/036341
§ 371(c)(1), (2) Date Dec. 2, 2021,
PCT Pub. No. WO2020/247763, PCT Pub. Date Dec. 10, 2020.
Claims priority of provisional application 62/870,858, filed on Jul. 5, 2019.
Claims priority of provisional application 62/858,671, filed on Jun. 7, 2019.
Prior Publication US 2022/0311990 A1, Sep. 29, 2022
Int. Cl. H04N 13/305 (2018.01); H04N 13/366 (2018.01)
CPC H04N 13/305 (2018.05) [H04N 13/366 (2018.05)] 17 Claims
OG exemplary drawing
 
1. A display device comprising:
a light-emitting layer comprising an addressable array of light-emitting elements;
an optical layer overlaying the light-emitting layer, wherein the optical layer includes interlaced distributed lenses, comprising:
a first distributed lens formed by lens regions that constitute a portion of a first lens having a first principal focus point and a second distributed lens formed by lens regions that constitute a portion of a second lens having a second principal focus point,
wherein the lens regions of the first and of the second distributed lenses are capable of being interlaced without an overlap; and
a spatial light modulator operative to provide control over which of the lens regions of the distributed lenses transmit light from the light-emitting layer to the outside of the display device, wherein lens regions that are allowed to transmit light focus the light at a position of a voxel to be displayed.