US 12,457,856 B2
Light emitting display device
Nak Cho Choi, Yongin-si (KR); Taek Geun Lee, Cheonan-si (KR); Kwang Sik Lee, Cheonan-si (KR); and Yun-Kyeong In, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jan. 11, 2022, as Appl. No. 17/573,345.
Claims priority of application No. 10-2021-0083448 (KR), filed on Jun. 25, 2021.
Prior Publication US 2022/0415979 A1, Dec. 29, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/86 (2023.01); H10K 59/38 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/865 (2023.02); H10K 59/38 (2023.02); H10K 59/8723 (2023.02); H10K 59/8792 (2023.02)] 7 Claims
OG exemplary drawing
 
1. A light emitting display device comprising:
a substrate;
an anode positioned on the substrate;
a black pixel defining layer, wherein an opening overlapping the anode is defined in the black pixel defining layer;
an emission layer positioned in the opening of the black pixel defining layer;
a spacer positioned on the black pixel defining layer and having a step, an entirety of the spacer being transparent; and
a cathode formed on the emission layer, the black pixel defining layer, and the spacer,
wherein the spacer has a first portion and a second portion having a lower height than the first portion and integrally formed with the first portion, and
one of end portions of the second portion is positioned closer to the opening than one of end portions of the first portion.