US 12,219,822 B2
Organic light emitting diode display device
Junghyun Cho, Yongin-si (KR); and Haeyoung Yun, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 4, 2021, as Appl. No. 17/141,061.
Application 17/141,061 is a division of application No. 15/868,060, filed on Jan. 11, 2018, granted, now 10,916,607.
Claims priority of application No. 10-2017-0005380 (KR), filed on Jan. 12, 2017.
Prior Publication US 2021/0126068 A1, Apr. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/124 (2023.01); H10K 50/852 (2023.01); H10K 50/854 (2023.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 50/852 (2023.02); H10K 50/854 (2023.02); H10K 59/122 (2023.02); H10K 59/352 (2023.02); H10K 59/353 (2023.02); H10K 59/1201 (2023.02)] 11 Claims
OG exemplary drawing
 
1. An organic light emitting diode display device, comprising:
a substrate;
a protection layer on the substrate, the protection layer including comprising a trench pattern and a recessed portion;
a first electrode on the protection layer;
a pixel defining layer on the protection layer, the pixel defining layer defining an opening, the opening exposing at least a part of the first electrode;
an organic light emitting layer on the first electrode; and
a second electrode on the organic light emitting layer,
wherein:
the recessed portion overlaps the opening and is spaced apart from an edge of the opening in a plan view of the display device,
the trench pattern includes comprises a plurality of trenches, each trench having a dot shape,
each trench of the plurality of trenches overlaps the pixel defining layer in the plan view, and
each trench of the plurality of trenches is spaced apart from the first electrode in the plan view and has a concave cross-section.