US 10,558,053 B2
Optical device and display apparatus
Akio Fukase, Chino (JP); and Kunihiko Yano, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on May 24, 2018, as Appl. No. 15/988,589.
Claims priority of application No. 2017-109013 (JP), filed on Jun. 1, 2017.
Prior Publication US 2018/0348532 A1, Dec. 6, 2018
Int. Cl. G02B 27/10 (2006.01); G02B 27/01 (2006.01)
CPC G02B 27/102 (2013.01) [G02B 27/0172 (2013.01); G02B 2027/0114 (2013.01); G02B 2027/0125 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical device comprising:
a first display panel having a plurality of first pixels on a first substrate, each including a first light-emitting element, wherein the first display panel emits first color light from each of the plurality of first pixels;
a second display panel having a plurality of second pixels on a second substrate that is separated from the first substrate, each including a second light-emitting element, and a plurality of third pixels, each including a third light-emitting element, wherein the second display panel emits second color light having a different wavelength range from the first color light from each of the plurality of second pixels and emits third color light having a different wavelength range from the first color light and the second color light from each of the plurality of third pixels; and
a combining optical system that combines the light emitted from the first display panel and the light emitted from the second display panel.