US 11,917,856 B2
Organic light emitting display device
Seonghan Hwang, Goyang-si (KR); and Wonrae Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Aug. 18, 2021, as Appl. No. 17/405,948.
Claims priority of application No. 10-2020-0109693 (KR), filed on Aug. 28, 2020.
Prior Publication US 2022/0069259 A1, Mar. 3, 2022
Int. Cl. H10K 50/86 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 59/124 (2023.01); H10K 59/12 (2023.01)
CPC H10K 50/865 (2023.02) [H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 59/124 (2023.02)] 19 Claims
OG exemplary drawing
 
1. An organic light-emissive display device comprising:
a substrate including a first sub-pixel area, a second sub-pixel area, and a third sub-pixel area;
a first color filter disposed in the first sub-pixel area;
a second color filter disposed in the second sub-pixel area;
a third color filter disposed in the third sub-pixel area;
a planarization layer disposed on the first, second, and third color filters; and
a bank layer disposed on the planarization layer and between adjacent ones of the first, second, and third sub-pixel areas,
wherein a portion of the second color filter protrudes upwardly beyond a top face of the planarization layer, and
wherein the bank layer covers the portion of the second color filter protruding upwardly beyond the top face of the planarization layer.