US 11,930,684 B2
Display device
Chang Soon Jang, Seoul (KR); Keun Chan Oh, Hwaseong-si (KR); Gak Seok Lee, Hwaseong-si (KR); Sang Hun Lee, Hwaseong-si (KR); So Yun Lee, Seoul (KR); and Ji Eun Jang, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jun. 3, 2021, as Appl. No. 17/337,476.
Claims priority of application No. 10-2020-0102239 (KR), filed on Aug. 14, 2020.
Prior Publication US 2022/0052121 A1, Feb. 17, 2022
Int. Cl. H10K 59/38 (2023.01); H10K 50/842 (2023.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/38 (2023.02) [H10K 50/8428 (2023.02); H10K 50/865 (2023.02); H10K 59/12 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display device, comprising:
a first base portion;
a second base portion facing the first base portion;
a first light emitting element including a light emitting layer disposed on one surface of the first base portion and emitting blue light;
a first wavelength conversion pattern disposed on the first light emitting element and converting blue light into red light;
a red color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern;
an air layer interposed between the first wavelength conversion pattern and the red color filter;
a second light emitting element disposed on the first base portion and emitting blue light;
a second wavelength conversion pattern disposed on the second light emitting element and converting blue light into green light;
a first capping layer disposed on the first wavelength conversion pattern;
a second capping layer disposed between the red color filter and the air layer; and
a color mixing prevention member disposed between the first wavelength conversion member and the second wavelength conversion member,
wherein the air layer is disposed between the first capping layer and the second capping layer to directly contact the first capping layer and the second capping layer,
wherein the first capping layer is in direct contact with the first wavelength conversion pattern, and
wherein the color mixing prevention member is disposed on the first capping layer.