US 11,778,844 B2
Light emitting element and display panel including the same
Sungwook Kim, Hwaseong-si (KR); Kyungsik Kim, Suwon-si (KR); SeulOng Kim, Hwaseong-si (KR); Tsuyoshi Naijo, Suwon-si (KR); Sung-Soo Bae, Seoul (KR); Dongchan Lee, Sejong-si (KR); Hyein Jeong, Suwon-si (KR); Hyewon Choi, Suwon-si (KR); Seung-Jin Chu, Gwangmyeong-si (KR); and Jaeweon Hur, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 15, 2020, as Appl. No. 16/901,672.
Claims priority of application No. 10-2019-0092404 (KR), filed on Jul. 30, 2019.
Prior Publication US 2021/0036255 A1, Feb. 4, 2021
Int. Cl. H01L 27/32 (2006.01); H01L 27/15 (2006.01); H01L 33/08 (2010.01); H01L 33/14 (2010.01); H01L 33/26 (2010.01); H01L 33/50 (2010.01); H01L 33/36 (2010.01); H10K 50/12 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01)
CPC H10K 50/12 (2023.02) [H10K 50/15 (2023.02); H10K 50/16 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A light emitting element comprising:
a first electrode;
a second electrode facing the first electrode;
a first light emitting layer between the first electrode and the second electrode to emit a first light;
a second light emitting layer between the first light emitting layer and the second electrode to emit a second light; and
an intermediate layer including a host material between the first light emitting layer and the second light emitting layer,
wherein the intermediate layer has a thickness of about 90 nm to about 170 nm, and
wherein an emission wavelength of the first light and an emission wavelength of the second light are substantially the same.