US 12,426,430 B2
Display device that improves light extraction efficiency from light emitting element by functioning as a mirror
Akira Ohshima, Sakai (JP); and Yasushi Asaoka, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 18/024,008
Filed by SHARP KABUSHIKI KAISHA, Osaka (JP)
PCT Filed Sep. 4, 2020, PCT No. PCT/JP2020/033605
§ 371(c)(1), (2) Date Feb. 28, 2023,
PCT Pub. No. WO2022/049723, PCT Pub. Date Mar. 10, 2022.
Prior Publication US 2023/0352517 A1, Nov. 2, 2023
Int. Cl. H01L 27/15 (2006.01); H10H 29/14 (2025.01)
CPC H10H 29/142 (2025.01) 17 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate; and
a light-emitting element provided on the substrate and including a light-emitting portion, a first reflective layer overlapping with the light-emitting portion and configured to reflect external light, and a light-exiting portion adjacent to the light-emitting portion,
wherein the light-emitting portion includes a first electrode, a first light-emitting layer, and a second electrode provided in this order from the substrate side to the first reflective layer side, and
the light-exiting portion includes a first opening, the first opening being an opening of the first reflective layer, and a second reflective layer configured to reflect light from the light-emitting portion to the first opening.