US 12,293,703 B2
Scan driver having a node control circuit in response to carry signal, enable signal, and voltage of inverted carry node and display device including the same
Kyungho Kim, Yongin-si (KR); and Gichang Lee, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Sep. 18, 2023, as Appl. No. 18/369,350.
Claims priority of application No. 10-2023-0016339 (KR), filed on Feb. 7, 2023.
Prior Publication US 2024/0265847 A1, Aug. 8, 2024
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/0267 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A scan driver, comprising:
a plurality of stages each including:
a first node control circuit, which controls a voltage of a first node in response to an input signal, a first clock signal, and a second clock signal;
an inverted carry node control circuit, which controls a voltage of an inverted carry node in response to the voltage of the first node;
a carry output circuit, which outputs a carry signal in response to the voltage of the inverted carry node;
a fourth node control circuit, which controls a voltage of a fourth node in response to the carry signal;
a second node control circuit, which controls a voltage of a second node in response to the carry signal, an enable signal, and the voltage of the inverted carry node;
a third node control circuit, which controls a voltage of a third node in response to the voltage of the second node and the voltage of the fourth node; and
a scan output circuit, which outputs a scan signal in response to the voltage of the third node and the voltage of the fourth node.