US 11,658,189 B2
Display apparatus comprising different types of thin film transistors and method for manufacturing the same
Jaeman Jang, Paju-si (KR); SeHee Park, Paju-si (KR); DaeHwan Kim, Paju-si (KR); and PilSang Yun, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Mar. 9, 2021, as Appl. No. 17/196,805.
Application 17/196,805 is a division of application No. 16/525,482, filed on Jul. 29, 2019, granted, now 10,978,499.
Claims priority of application No. 10-2018-0169569 (KR), filed on Dec. 26, 2018.
Prior Publication US 2021/0193699 A1, Jun. 24, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 27/12 (2006.01); H01L 27/32 (2006.01)
CPC H01L 27/1255 (2013.01) [H01L 27/1225 (2013.01); H01L 27/1251 (2013.01); H01L 27/3262 (2013.01)] 21 Claims
OG exemplary drawing
 
8. A display apparatus comprising:
a substrate;
a pixel driving circuit on the substrate; and
a display unit connected with the pixel driving circuit,
wherein the pixel driving circuit includes a first thin film transistor and a second thin film transistor,
wherein the first thin film transistor includes,
a first gate electrode on the substrate,
a first active layer spaced apart from the first gate electrode and overlapping at least a part of the first gate electrode,
a first source electrode connected with the first active layer; and
a first drain electrode spaced apart from the first source electrode and connected with the first active layer, and
wherein the second thin film transistor includes,
a second active layer on the substrate, and
a second gate electrode spaced apart from the second active layer and partially overlapping at least a part of the second active layer,
wherein the first gate electrode is disposed between the substrate and the first active layer,
the second active layer is disposed between the substrate and the second gate electrode, and
the first gate electrode and the second gate electrode are disposed at an opposite side with respect to the second active layer, and
wherein the display apparatus further comprises a first insulating interlayer on the first active layer, and the second active layer is disposed on the first insulating interlayer,
wherein the first active layer and the second active layer are disposed at opposite sides with respect to the first insulating interlayer.