US 12,114,543 B2
Display device with active pattern interposed between island shaped electrodes
Jinsung An, Seongnam-si (KR); Seokje Seong, Seongnam-si (KR); and Seongjun Lee, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jun. 8, 2021, as Appl. No. 17/342,262.
Prior Publication US 2022/0392988 A1, Dec. 8, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/121 (2023.01)
CPC H10K 59/131 (2023.02) [H10K 59/121 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate;
a first active pattern on the substrate;
a second active pattern on the first active pattern;
a gate insulating layer on the second active pattern;
a first upper electrode on the second active pattern and having an island shape;
a first signal line on the first upper electrode, being electrically connected to the first upper electrode, and having an electrical resistance smaller than an electrical resistance of the first upper electrode,
wherein the second active pattern comprises a material that differs from a material of the first upper electrode,
the second active pattern is covered by the gate insulating layer, and
the first upper electrode contacts an upper surface of the gate insulating layer; and
a first lower electrode between the first active pattern and the second active pattern,
wherein the first signal line is electrically connected to the first lower electrode.