US 11,871,621 B2
Display device comprising partition walls
Nak Cho Choi, Yongin-si (KR); Dae-Gi Kweon, Asan-si (KR); Ji hee Kim, Suwon-si (KR); Kie Hyun Nam, Seongnam-si (KR); Min Yeul Ryu, Suwon-si (KR); Sang Hee Yu, Hwaseong-si (KR); Jun Hee Lee, Hwaseong-si (KR); and Da-young Jung, Incheon (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 4, 2022, as Appl. No. 17/713,034.
Application 17/713,034 is a continuation of application No. 16/734,980, filed on Jan. 6, 2020, granted, now 11,296,159.
Claims priority of application No. 10-2019-0042015 (KR), filed on Apr. 10, 2019.
Prior Publication US 2022/0223670 A1, Jul. 14, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/115 (2023.01); H10K 50/818 (2023.01); H10K 50/844 (2023.01); H10K 50/86 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/115 (2023.02); H10K 50/818 (2023.02); H10K 50/844 (2023.02); H10K 50/865 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a thin film transistor on the substrate;
a first electrode electrically connected to the thin film transistor;
a first partition wall on the first electrode;
a second partition wall on the first partition wall;
a third partition wall overlapping a part of the second partition wall, and comprising a material that is different from a material of the second partition wall; and
a light emitting layer and a second electrode overlapping the first electrode;
wherein the second partition wall comprises at least one of a black pigment and a black dye,
wherein the first partition wall and the third partition wall comprise an organic insulating material, and
wherein the third partition wall is located on only one of a first side of the first electrode or a second side of the first electrode in plan view.