US 12,035,569 B2
Hydrophobic and hydrophilic dual bank structures in organic light emitting display device
Kwanghoon Shin, Paju-si (KR); and Joungwon Woo, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Dec. 23, 2019, as Appl. No. 16/725,200.
Claims priority of application No. 10-2018-0169813 (KR), filed on Dec. 26, 2018.
Prior Publication US 2020/0212146 A1, Jul. 2, 2020
Int. Cl. H10K 59/122 (2023.01); H10K 59/121 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 71/13 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/121 (2023.02); H10K 59/131 (2023.02); H10K 59/352 (2023.02); H10K 59/353 (2023.02); H10K 59/38 (2023.02); H10K 71/13 (2023.02); H10K 2102/351 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An organic light-emitting display device comprising:
a substrate;
a first sub-pixel arranged along a first horizontal line and a second sub-pixel arranged along a second horizontal line on the substrate;
at least one thin film transistor and a first electrode of an organic light-emitting diode connected to the thin film transistor, the at least one thin film transistor and the first electrode of the organic light-emitting diode being disposed in each of the first sub-pixel and the second sub-pixel;
at least one line, the at least one line being one of a data line, a sensing line, a power line or a cathode power line intersecting the first horizontal line;
a first bank layer disposed on the first electrode and defining a respective first opening in each of the first sub-pixel and the second sub-pixel exposing the first electrode of each of the first sub-pixel and the second sub-pixel; and
a second bank layer disposed on the first bank layer and defining a respective second opening in each of the first sub-pixel and the second sub-pixel exposing the first bank layer of each of the first sub-pixel and the second sub-pixel and the first electrode of each of the first sub-pixel and the second sub-pixel,
wherein the second bank layer extends perpendicular to the first horizontal line and the second horizontal line and parallel to side ends of the first opening of the first sub-pixel and the first opening of the second sub-pixel,
wherein the second bank layer is angled in a first direction at a boundary between the respective first opening of the first sub-pixel and the respective first opening of the second sub-pixel,
wherein the first sub-pixel has a first center line extending in parallel with the at least one line,
wherein the first electrode of the first sub-pixel has a second center line extending in parallel with the at least one line,
wherein the second center line of the first electrode of the first sub-pixel is disposed on a first side with respect to the first center line of the first sub-pixel;
wherein the respective second opening of the second bank layer of the first sub-pixel and the respective second opening of the second bank layer of the second sub-pixel are connected to each other, and
wherein an organic light emitting layer of the organic light-emitting diode is consecutively arranged in the first sub-pixel and the second sub-pixel, and a position of the organic light emitting layer of the first sub-pixel along the first horizontal line is shifted relative to a position of the organic light emitting layer of the second sub-pixel along the second horizontal line.