US 11,730,017 B2
Display device and method of fabricating the same
Jaekwon Hwang, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 27, 2019, as Appl. No. 16/552,972.
Claims priority of application No. 10-2018-0139326 (KR), filed on Nov. 13, 2018; and application No. 10-2019-0033816 (KR), filed on Mar. 25, 2019.
Prior Publication US 2020/0152717 A1, May 14, 2020
Int. Cl. H01L 51/50 (2006.01); H10K 59/122 (2023.01); H10K 50/844 (2023.01); H10K 50/86 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01); H10K 71/40 (2023.01); H10K 71/13 (2023.01); H10K 71/20 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/844 (2023.02); H10K 50/865 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); H10K 71/135 (2023.02); H10K 71/211 (2023.02); H10K 71/233 (2023.02); H10K 71/40 (2023.02); H10K 59/1201 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display device, comprising:
a circuit device layer comprising a transistor;
a display element layer comprising:
a first electrode connected to the transistor;
a second electrode disposed on the first electrode;
an organic light emitting layer disposed between the first electrode and the second electrode;
a hole control layer disposed between the first electrode and the organic light emitting layer;
a first layer comprising a first opening exposing the first electrode; and
a second layer disposed on the first layer, the second layer comprising a second opening overlapping the first opening; and
an encapsulation layer disposed on the display element layer,
wherein:
a top surface of the first layer is exposed by the hole control layer and the second layer;
the hole control layer is in contact with the first electrode;
the second electrode is in contact with the top surface of the first layer and a side surface of the second layer defining the second opening; and
the first layer and the second layer contain a same liquid-repellent material.