US 12,336,378 B2
Organic light emitting display device and method of manufacturing the same
Wooyong Sung, Yongin-si (KR); Seungho Yoon, Yongin-si (KR); Wonje Cho, Yongin-si (KR); and Wonwoo Choi, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Feb. 7, 2022, as Appl. No. 17/666,509.
Application 17/666,509 is a continuation of application No. 15/924,658, filed on Mar. 19, 2018, granted, now 11,245,093.
Claims priority of application No. 10-2017-0116131 (KR), filed on Sep. 11, 2017.
Prior Publication US 2022/0158131 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/52 (2006.01); H01L 27/32 (2006.01); H01L 51/56 (2006.01); H10K 50/80 (2023.01); H10K 50/844 (2023.01); H10K 77/10 (2023.01); H10D 86/40 (2025.01); H10D 86/60 (2025.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 50/80 (2023.02); H10K 77/111 (2023.02); H10D 86/441 (2025.01); H10D 86/451 (2025.01); H10D 86/60 (2025.01); H10K 59/12 (2023.02); H10K 59/1201 (2023.02); H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 2102/311 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An organic light emitting display device, comprising:
a flexible substrate having a groove, the groove being undercut;
a common layer on the flexible substrate, the common layer comprising an organic light emitting layer and being disconnected by the groove; and
an encapsulation member on the common layer, the encapsulation member covering the common layer,
wherein the flexible substrate comprises a first plastic layer and a first barrier layer on the first plastic layer,
wherein the first plastic layer is undercut at the groove with respect to the first barrier layer,
wherein the first plastic layer is formed of a plastic material,
wherein the first barrier layer is formed of an inorganic material;
wherein the organic light emitting layer is on the flexible substrate and spaced from the groove; and
wherein the flexible substrate comprises a second plastic layer on the first barrier layer and a second barrier layer on the second plastic layer, and
wherein the second plastic layer is undercut at the groove with respect to the second barrier layer.
 
14. An organic light emitting display device, comprising:
a flexible substrate having a display area, a through area, and a peripheral area, and having a groove in the peripheral area, the groove being undercut;
an organic light emitting element on the display area of the flexible substrate;
a common layer on the peripheral area of the flexible substrate, the common layer being disconnected by the groove; and
an encapsulation member on the organic light emitting element and the common layer,
wherein the flexible substrate comprises a first plastic layer and a first barrier layer on the first plastic layer,
wherein the first plastic layer is undercut at the groove with respect to the first barrier layer,
wherein the first plastic layer is formed of a plastic material,
wherein the first barrier layer is formed of an inorganic material;
wherein the organic light emitting display device defines a through hole at the through area, the through hole extending through an entire thickness of the organic light emitting display device in a thickness direction of the organic light emitting display device;
wherein the through hole is adjacent to the groove and spaced from the display area by the groove; and
wherein the organic light emitting element comprises:
a pixel electrode;
a first organic function layer on the pixel electrode;
an organic light emitting layer on the first organic function layer;
a second organic function layer on the organic light emitting layer; and
a common electrode on the second organic function layer.