US 11,812,639 B2
Electroluminescent display device
Hyuk-Chan Gee, Paju-si (KR); Sang-Bin Lee, Paju-si (KR); Nack-Youn Jung, Paju-si (KR); Jeong-Mook Choi, Paju-si (KR); and Sung-Jin Park, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Dec. 8, 2020, as Appl. No. 17/115,358.
Claims priority of application No. 10-2019-0172999 (KR), filed on Dec. 23, 2019.
Prior Publication US 2021/0193761 A1, Jun. 24, 2021
Int. Cl. H10K 59/122 (2023.01); H10K 59/88 (2023.01); H10K 59/35 (2023.01); H10K 59/123 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/123 (2023.02); H10K 59/352 (2023.02); H10K 59/88 (2023.02)] 25 Claims
OG exemplary drawing
 
1. An electroluminescent display device, comprising:
a substrate including a first pixel column and a second pixel column, wherein the first pixel column and the second pixel column respectively include a plurality of first pixels and a plurality of second pixels arranged in a first direction and respectively have a first width and a second width in a second direction perpendicular to the first direction, and wherein the second pixel column is positioned in the second direction from the first pixel column, and the second width is greater than the first width;
a light emitting diode in each first pixel from the plurality of first pixels and each second pixel from the plurality of second pixels, the light emitting diode including a first electrode, a light emitting layer and a second electrode;
a first bank positioned between adjacent first pixels from the plurality of first pixels and between adjacent second pixels from the plurality of second pixels and covering an edge of the first electrode;
a second bank positioned between the first pixel column and the second pixel column and extending along the first direction; and
a first partition wall being across the second pixel column along the first direction and positioned on the first electrode,
wherein the second bank includes a first portion at a first side of the second pixel column and a second portion at a second side of the second pixel column, and
wherein the first electrode is disposed between the first portion and the first partition wall and between the second portion and the first partition wall.