US 12,219,820 B2
Organic light-emitting display device and method of manufacturing the same
Duckjung Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on May 12, 2023, as Appl. No. 18/317,048.
Application 18/317,048 is a continuation of application No. 17/365,940, filed on Jul. 1, 2021, granted, now 11,723,237.
Application 17/365,940 is a continuation of application No. 16/288,715, filed on Feb. 28, 2019, granted, now 11,056,547, issued on Jul. 6, 2021.
Claims priority of application No. 10-2018-0028268 (KR), filed on Mar. 9, 2018.
Prior Publication US 2023/0284485 A1, Sep. 7, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 71/20 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 71/00 (2023.02); H10K 71/221 (2023.02); H10K 59/1201 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An organic light-emitting display device comprising:
a substrate;
a first pixel electrode and a second pixel electrode spaced from each other on the substrate;
a pixel defining layer having a first opening exposing a center portion of each of the first and second pixel electrodes, the pixel defining layer continuously surrounding edges of each of the first pixel electrode and the second pixel electrode;
a barrier layer on the pixel defining layer and continuously surrounding edges of each of the first pixel electrode and the second pixel electrode, the barrier layer comprising a first barrier layer and a second barrier layer, and having a second opening that is larger than the first opening and having an undercut structure in which an edge of a top surface of the barrier layer protrudes from a portion of the barrier layer below the top surface in a direction parallel to the substrate, a side of the second barrier layer being at an obtuse angle with respect to a side of the first barrier layer;
a first intermediate layer comprising a first emissive layer, the first emissive layer being arranged on the first pixel electrode, the pixel defining layer, and the barrier layer;
a second intermediate layer comprising a second emissive layer, the second emissive layer being arranged on the second pixel electrode, the pixel defining layer, and the barrier layer;
a first electrode arranged on the first intermediate layer; and
a second electrode arranged on the second intermediate layer,
wherein the first electrode and the second electrode are electrically connected to each other, and
wherein each of the first emissive layer and the second emissive layer is unconnected at the undercut structure.