US 12,225,776 B2
Display panel and manufacturing method thereof
Kanghyun Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Dec. 10, 2021, as Appl. No. 17/547,359.
Claims priority of application No. 10-2020-0189651 (KR), filed on Dec. 31, 2020.
Prior Publication US 2022/0208905 A1, Jun. 30, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/353 (2023.02); H10K 59/1201 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display panel comprising:
a substrate on which a plurality of pixels are disposed;
a bank which defines a light emitting area of the plurality of pixels;
a light emitting layer disposed at the light emitting area,
wherein the bank comprises:
a hydrophilic bank which extends in a row direction and separates pixel rows;
a first hydrophobic bank which is formed on the hydrophilic bank; and
a second hydrophobic bank which extends in a column direction and separates pixel columns,
wherein the first hydrophobic bank has a lower hydrophobic property than that of the second hydrophobic bank,
wherein the first hydrophobic bank and the second hydrophobic bank comprise a hydrophobic material, and
wherein an amount of the hydrophobic material of the first hydrophobic bank is less than an amount of the hydrophobic material of the second hydrophobic bank.