US 12,349,550 B2
Display apparatus including an emission area and a non-emission area and a charge blocking layer interposed in an organic layer
Eunhyung Lee, Goyang-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on May 17, 2022, as Appl. No. 17/746,291.
Claims priority of application No. 10-2021-0063499 (KR), filed on May 17, 2021.
Prior Publication US 2022/0367829 A1, Nov. 17, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/125 (2023.01); H10K 50/18 (2023.01); H10K 101/30 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/125 (2023.02); H10K 50/18 (2023.02); H10K 2101/30 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a substrate having thereon an emission area and a non-emission area;
a plurality of sub pixels on the substrate;
an insulating layer on the substrate;
a first electrode disposed in each of the plurality of sub pixels, the first electrode on the insulating layer;
a bank on the insulating layer and the first electrode;
an opening defined within the bank, the opening exposing the first electrode;
a trench defined within the bank at a different location from the opening, the trench exposing the insulating layer, the trench between the plurality of sub pixels;
an organic layer disposed above the substrate in which the bank is disposed;
a charge blocking layer interposed in the organic layer in the trench; and
a second electrode disposed on the organic layer.