US 11,895,866 B2
Light emitting element, projection type display device, and planar light emitting device
Kazuichiro Itonaga, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/295,108
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Nov. 8, 2019, PCT No. PCT/JP2019/043911
§ 371(c)(1), (2) Date May 19, 2021,
PCT Pub. No. WO2020/110665, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 2018-220849 (JP), filed on Nov. 27, 2018; and application No. 2019-144354 (JP), filed on Aug. 6, 2019.
Prior Publication US 2022/0006057 A1, Jan. 6, 2022
Int. Cl. H10K 50/856 (2023.01); H10K 50/858 (2023.01); H10K 50/125 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/856 (2023.02) [H10K 50/125 (2023.02); H10K 50/858 (2023.02); H10K 2102/00 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A light emitting element, comprising:
a first electrode;
an organic layer on the first electrode, wherein the organic layer includes a plurality of luminescent layers composed of an organic luminescent material;
a second electrode on the organic layer, wherein
the organic layer is configured by layering the plurality of luminescent layers that emit light of same color;
a light reflecting layer in an insulating layer which is in direct contact with the first electrode; and
a metal thin-film filter layer between the first electrode and the light reflecting layer which is in the insulating layer which is in direct contact with the first electrode.