US 11,925,069 B2
Display device having a protrusion in a non-emission area to reduce leakage current
ByoungHyun Koo, Seoul (KR); SungWook Yoon, Goyang-si (KR); Chung Hoon Lee, Paju-si (KR); and DongMin Jang, Incheon (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jun. 1, 2021, as Appl. No. 17/336,253.
Claims priority of application No. 10-2020-0073199 (KR), filed on Jun. 16, 2020.
Prior Publication US 2021/0391397 A1, Dec. 16, 2021
Int. Cl. H01L 27/32 (2006.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/352 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display device, comprising:
a substrate including an emission area and a non-emission area and in which a plurality of sub-pixels is defined;
a plurality of first electrodes disposed in the plurality of sub-pixels, respectively;
a bank that is disposed in the non-emission area between the plurality of sub-pixels, the bank exposing a first electrode from the plurality of first electrodes through an opening;
a protrusion disposed at least in part in a second non-emission area of the non-emission area which is divided into a first non-emission area at a flat top surface of the bank and the second non-emission area at an inclined top surface of the bank;
an organic layer disposed on the plurality of first electrodes, the organic layer including an emission layer disposed in each of the plurality of sub-pixels and a common layer commonly disposed in the plurality of sub-pixels; and
a second electrode disposed on the organic layer,
wherein the common layer and the second electrode are disconnected from each other between adjacent sub-pixels at the protrusion.