US 12,153,313 B2
Display device
Takeo Koito, Tokyo (JP); and Junji Kobashi, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Sep. 5, 2023, as Appl. No. 18/460,784.
Application 18/460,784 is a continuation of application No. PCT/JP2022/005084, filed on Feb. 9, 2022.
Claims priority of application No. 2021-035349 (JP), filed on Mar. 5, 2021.
Prior Publication US 2023/0408877 A1, Dec. 21, 2023
Int. Cl. G02F 1/1347 (2006.01); G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G02F 1/29 (2006.01)
CPC G02F 1/1347 (2013.01) [G02F 1/1323 (2013.01); G02F 1/133536 (2013.01); G02F 1/13363 (2013.01); G02F 1/29 (2013.01); G02F 1/292 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A display device comprising:
a lighting device;
a liquid crystal diffraction element arranged on the lighting device;
a first retardation plate arranged on the liquid crystal diffraction element;
a first variable phase difference element arranged on the first retardation plate to provide phase difference to an incoming light; and
an image display panel arranged on the first variable phase difference element.