US 12,148,871 B2
Display device
Shinhyuk Yang, Seongnam-si (KR); Jeehoon Kim, Cheonan-si (KR); Kyumin Kim, Suwon-si (KR); and Jongmoo Huh, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Dec. 29, 2021, as Appl. No. 17/565,088.
Claims priority of application No. 10-2021-0071018 (KR), filed on Jun. 1, 2021.
Prior Publication US 2022/0384696 A1, Dec. 1, 2022
Int. Cl. H01L 33/62 (2010.01); H01L 33/38 (2010.01)
CPC H01L 33/62 (2013.01) [H01L 33/382 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a driving element disposed in a display area;
an emission element disposed in the display area and electrically connected to the driving element; and
a connection pad disposed in a pad area adjacent to the display area and electrically connected to the driving element,
wherein the connection pad includes a first pad conductive layer having a metal and a second pad conductive layer having indium tin zinc oxide (ITZO), and
wherein the indium tin zinc oxide of the second pad conductive layer includes about 20 at % to about 35 at % of indium (In), about 2 at % to about 20 at % of zinc (Zn), about 4 at % to about 6 at % of tin (Sn), and a remainder of oxygen (O).