US 11,862,106 B2
Scan driver and display apparatus comprising the same
Jonghee Kim, Yongin-si (KR); Bogyeong Kim, Yongin-si (KR); Dooyoung Lee, Yongin-si (KR); Takyoung Lee, Yongin-si (KR); Sanguk Lim, Yongin-si (KR); and BoYong Chung, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 3, 2022, as Appl. No. 17/980,425.
Claims priority of application No. 10-2021-0170188 (KR), filed on Dec. 1, 2021.
Prior Publication US 2023/0169926 A1, Jun. 1, 2023
Int. Cl. G09G 3/3266 (2016.01); G09G 3/3233 (2016.01)
CPC G09G 3/3266 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/041 (2013.01); G09G 2320/045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A scan driver comprising a plurality of stages,
wherein each of the plurality of stages comprises:
a node controller configured to control a voltage level of a first control node;
a first output controller comprising a first pull-up transistor connected between a first clock input terminal configured to receive a first clock signal, and a first output terminal and configured to output the first clock signal as a first scan signal in response to the first control node having an on-voltage level;
a second output controller comprising a second pull-up transistor connected between a second clock input terminal and configured to receive a second clock signal, and a second output terminal and configured to output the second clock signal as a second scan signal in response to the first control node having the on-voltage level; and
a third output controller comprising a third pull-up transistor connected between a third clock input terminal configured to receive a third clock signal, and a third output terminal and configured to output the third clock signal as a carry signal in response to the first control node having the on-voltage level,
wherein a falling time of the first clock signal is shorter than falling times of the second clock signal and the third clock signal.