US 11,996,026 B1
Scan driver and display device
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 Jun. 28, 2023, as Appl. No. 18/215,736.
Claims priority of application No. 10-2022-0148690 (KR), filed on Nov. 9, 2022.
Int. Cl. G09G 3/20 (2006.01); G09G 3/3266 (2016.01); G09G 3/36 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 3/3266 (2013.01); G09G 3/3677 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/04 (2013.01); G09G 2330/021 (2013.01); G09G 2340/0435 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A scan driver including a plurality of stages, each of the plurality of stages comprising:
a control circuit which controls a voltage of a first node and a voltage of a second node in response to an input signal, a first clock signal and a second clock signal;
a carry output circuit which outputs a carry signal in response to the voltage of the first node and the voltage of the second node;
an enable node controlling circuit which controls a voltage of an enable node in response to the carry signal, an enable signal and an inverted enable signal;
a masking circuit which controls a voltage of a third node in response to the voltage of the second node and the voltage of the enable node; and
a scan output circuit which outputs a scan signal in response to the voltage of the first node and the voltage of the third node.