US 11,988,919 B2
Backlights including patterned diffusers and wavelength selective reflectors
Kirk Richard Allen, Elmira, NY (US); Songfeng Han, Shanghai (CN); Pamela Arlene Maurey, Savona, NY (US); Xiang-Dong Mi, Pittsford, NY (US); and Andrii Varanytsia, Corning, NY (US)
Assigned to CORNING INCORPORATED, Corning, NY (US)
Appl. No. 17/995,439
Filed by Corning Incorporated, Corning, NY (US)
PCT Filed Apr. 14, 2021, PCT No. PCT/US2021/027233
§ 371(c)(1), (2) Date Oct. 4, 2022,
PCT Pub. No. WO2021/221908, PCT Pub. Date Nov. 4, 2021.
Claims priority of provisional application 63/144,760, filed on Feb. 2, 2021.
Claims priority of provisional application 63/017,296, filed on Apr. 29, 2020.
Prior Publication US 2023/0168541 A1, Jun. 1, 2023
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1335 (2006.01)
CPC G02F 1/133611 (2013.01) [G02F 1/133514 (2013.01); G02F 1/133605 (2013.01); G02F 1/133606 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A reflector comprising:
a carrier comprising a first surface and a second surface opposite to the first surface;
a first wavelength selective reflector on the first surface of the carrier, the first wavelength selective reflector to transmit more than 60 percent of normal incident light of a first wavelength range and reflect more than 60 percent of normal incident light of a second wavelength range different from the first wavelength range; and
a second wavelength selective reflector on the second surface of the carrier, the second wavelength selective reflector to transmit more than 60 percent of normal incident light of the first wavelength range and reflect more than 60 percent of normal incident light of a third wavelength range different from the first wavelength range.