US 12,082,440 B2
Display apparatus including plurality of subpixels with light emission area
Jintae Kim, Paju-si (KR); Sookang Kim, Paju-si (KR); and Mingeun Choi, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 14, 2021, as Appl. No. 17/501,703.
Claims priority of application No. 10-2020-0146531 (KR), filed on Nov. 5, 2020.
Prior Publication US 2022/0140291 A1, May 5, 2022
Int. Cl. H10K 50/858 (2023.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 59/126 (2023.01); H10K 59/38 (2023.01)
CPC H10K 50/858 (2023.02) [H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 59/126 (2023.02); H10K 59/38 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a plurality of subpixels configured to include a light emission area;
a planarization layer configured to include a plurality of light extraction patterns having a plurality of concave portions and a plurality of protruding portions in each of the plurality of subpixels;
a light emitting device layer disposed at the planarization layer of each of the plurality of subpixels; and
a bank layer disposed between the planarization layer and the light emitting device layer to open the light emission area in each of the plurality of subpixels,
wherein an end of the bank layer is configured to be disposed at the concave portion of an outermost light extraction pattern of at least one of the plurality of subpixels,
wherein the concave portions adjacent along a first direction among the plurality of concave portions are connected to each other in a straight line, and
the concave portions adjacent along a second direction crossing to the first direction among the plurality of concave portions are connected by a zigzag line.