US 12,471,463 B2
Display panel and display device with structure where signal line and electrode of light emitting element are disposed in same layer
EunJi Park, Wonju-si (KR); InHyo Han, Seoul (KR); and Daeyoung Seo, Seoul (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Oct. 28, 2022, as Appl. No. 17/976,557.
Claims priority of application No. 10-2021-0194695 (KR), filed on Dec. 31, 2021.
Prior Publication US 2023/0217744 A1, Jul. 6, 2023
Int. Cl. H10K 59/131 (2023.01); H10D 86/40 (2025.01); H10D 86/60 (2025.01); H10K 59/121 (2023.01)
CPC H10K 59/131 (2023.02) [H10D 86/441 (2025.01); H10D 86/60 (2025.01); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising:
a substrate;
first, second, third, and fourth signal lines and an active layer disposed on the substrate, the first, second, third, and fourth signal lines spaced apart from each other;
a first metal layer and a second metal layer disposed on a portion of an upper surface of the active layer and spaced apart from each other;
a first insulation film disposed on the first and second metal layers;
a second insulation film disposed on the first insulation film and overlapping at least a portion of the first and second metal layers disposed on the active layer, overlapping the first, second, third, and fourth signal lines, and offsetting from a portion of the upper surface of the active layer;
an electrode pattern disposed on the active layer and the first insulation film and offsetting from the second insulation film;
a first electrode disposed on the first insulation film;
a fifth signal line disposed on the second insulation film and crossing the first, second, third, and fourth signal lines;
a light emitting layer disposed on the first electrode; and
a second electrode disposed on the light emitting layer,
wherein the first electrode contacts an upper surface of the first metal layer disposed on the active layer, and
wherein the fifth signal line is disposed on a same layer as the first electrode.