US 12,137,575 B2
Organic light emitting diode display device with barrier wall and method of manufacturing the same
Mikyung Kim, Ansan-si (KR); and Sunyoul Lee, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Apr. 18, 2022, as Appl. No. 17/723,065.
Application 16/744,088 is a division of application No. 14/855,337, filed on Sep. 15, 2015, granted, now 10,547,028, issued on Jan. 28, 2020.
Application 17/723,065 is a continuation of application No. 16/744,088, filed on Jan. 15, 2020, granted, now 11,309,525.
Claims priority of application No. 10-2015-0032501 (KR), filed on Mar. 9, 2015.
Prior Publication US 2022/0238843 A1, Jul. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 50/844 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/8445 (2023.02) [H10K 59/122 (2023.02); H10K 71/00 (2023.02)] 11 Claims
OG exemplary drawing
 
1. An organic light emitting diode (OLED) display device comprising:
a substrate comprising a display area and a non-display area;
an organic light emitting diode element located at the display area;
a thin film encapsulation layer coating the organic light emitting diode element; and
a barrier wall around the display area,
wherein:
the thin film encapsulation layer is a multilayer in which an inorganic layer and an organic layer are alternately stacked, the inorganic layer comprises a lowermost inorganic layer and an uppermost inorganic layer,
the barrier wall comprises a first barrier wall spaced from the organic light emitting diode element by a first distance and a second barrier wall spaced from the organic light emitting diode element by a second distance greater than the first distance,
the organic layer in its entirety is inwardly of the first barrier wall,
the first barrier wall has an inner side surface facing the display area and an outer side surface facing the second barrier wall, and a top surface extending from the inner side surface to the outer side surface,
the lowermost inorganic layer surrounds the inner side surface and the outer side surface of the first barrier wall, and
the uppermost inorganic layer surrounds the inner side surface, the outer side surface and the top surface of the first barrier wall.