US 11,943,982 B2
Display device and method of manufacturing display device
Hyuneok Shin, Gwacheon-si (KR); Hyunwoo Kang, Yeosu-si (KR); Hyunah Sung, Suwon-si (KR); Dokeun Song, Yongin-si (KR); Sukyoung Yang, Hwaseong-si (KR); Yunjong Yeo, Hwaseong-si (KR); Dongmin Lee, Anyang-si (KR); Donghyeok Lee, Yongin-si (KR); and Shin Il Choi, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Aug. 10, 2021, as Appl. No. 17/398,336.
Claims priority of application No. 10-2020-0154473 (KR), filed on Nov. 18, 2020.
Prior Publication US 2022/0157925 A1, May 19, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/1315 (2023.02) [H10K 59/1201 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display device including a display area and a non-display area surrounding at least a portion of the display area, the display device comprising:
a base substrate;
a buffer layer disposed on the base substrate;
an active layer disposed on the buffer layer in the display area;
a first gate insulation layer disposed on the active layer;
a first gate line disposed on the first gate insulation layer in the display area;
a first signal line disposed in a same layer as the first gate line in the non-display area, the first signal line including a same material as a material of the first gate line including molybdenum;
a second gate insulation layer disposed on the first gate line and the first signal line;
a second gate line disposed on the second gate insulation layer in the display area; and
a second signal line disposed in a same layer as the second gate line in the non-display area, the second signal line including a same material as a material of the second gate line including at least one of aluminum and an aluminum alloy,
wherein a width of the first signal line is greater than a width of the second signal line.