US 11,968,876 B2
Display device
Kyungjin Jeon, Incheon (KR); Joon-seok Park, Yongin-si (KR); Kwang-suk Kim, Suwon-si (KR); Taesang Kim, Seoul (KR); Yeon-keon Moon, Hwaseong-si (KR); Geunchul Park, Suwon-si (KR); and Jun-hyung Lim, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Appl. No. 17/283,714
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
PCT Filed Feb. 1, 2019, PCT No. PCT/KR2019/001485
§ 371(c)(1), (2) Date Apr. 8, 2021,
PCT Pub. No. WO2020/075923, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 10-2018-0119623 (KR), filed on Oct. 8, 2018.
Prior Publication US 2021/0327964 A1, Oct. 21, 2021
Int. Cl. H10K 59/38 (2023.01); H10K 50/844 (2023.01); H10K 50/86 (2023.01); H10K 59/121 (2023.01); H10K 59/126 (2023.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01)
CPC H10K 59/38 (2023.02) [H10K 50/844 (2023.02); H10K 50/865 (2023.02); H10K 59/1213 (2023.02); H10K 59/126 (2023.02); H01L 27/1225 (2013.01); H01L 29/78633 (2013.01); H01L 29/7869 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a base substrate comprising a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area;
first to third thin film transistors on the base substrate and comprising first to third active patterns, respectively;
first to third pixel electrodes electrically connected to the first to third thin film transistors, respectively, and in the first to third sub-pixel areas, respectively;
a blue light emitting layer on the first to third pixel electrodes and configured to emit a blue light;
a first color conversion pattern in the first sub-pixel area on the blue light emitting layer;
a second color conversion pattern in the second sub-pixel area on the blue light emitting layer; and
a red color filter layer between the blue light emitting layer and the first to third active patterns,
wherein, in a plan view, an area, in which the blue light emitting layer overlaps the first to third pixel electrodes, defines a light emitting area, and
wherein the red color filter layer overlaps the defined light emitting area in the plan view.