US 11,984,085 B2
Shift register unit, gate driving circuit, display device and driving method
Xuehuan Feng, Beijing (CN); Yongqian Li, Beijing (CN); and Hao Liu, Beijing (CN)
Assigned to HEFEI BOE JOINT TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by HEFEI BOE JOINT TECHNOLOGY CO., LTD., Hefei (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Feb. 13, 2023, as Appl. No. 18/108,730.
Application 18/108,730 is a continuation of application No. 17/490,054, filed on Sep. 30, 2021, granted, now 11,615,743.
Application 17/490,054 is a continuation of application No. 16/766,470, granted, now 11,164,516, issued on Nov. 2, 2021, previously published as PCT/CN2019/128655, filed on Dec. 26, 2019.
Claims priority of application No. 201910048927.5 (CN), filed on Jan. 18, 2019.
Prior Publication US 2023/0196994 A1, Jun. 22, 2023
Int. Cl. G09G 3/3225 (2016.01); G09G 3/3266 (2016.01); G11C 19/28 (2006.01)
CPC G09G 3/3266 (2013.01) [G09G 3/3225 (2013.01); G11C 19/28 (2013.01); G09G 2310/0286 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A shift register unit, comprising a first sub-circuit, a second sub-circuit, a leakage prevention circuit and a blanking input sub-circuit, wherein
the first sub-circuit comprises a first input circuit and a first output circuit, the first input circuit is configured to control a level of a first node in response to a first input signal, and the first output circuit is configured to output a shift signal and a first output signal under control of the level of the first node;
the second sub-circuit comprises a second input circuit and a second output circuit, the second input circuit is configured to control a level of a second node in response to the first input signal while the first input circuit controls the level of the first node, and the second output circuit is configured to output a second output signal under control of the level of the second node;
the leakage prevention circuit is connected to the first node, and is configured to control a level of a leakage prevention node under control of the level of the first node, so as to turn off a circuit connected between the first node and the leakage prevention node; and
the blanking input sub-circuit is connected to the first node and the second node, and is configured to receive a selection control signal and a first clock signal, and control the level of the first node and the level of the second node,
wherein the blanking input sub-circuit comprises a selection control circuit, a third input circuit, a first transmission circuit, and a second transmission circuit
the selection control circuit is configured to control a level of a third node using a second input signal in response to the selection control signal, and maintain the level of the third node;
the third input circuit is configured to transmit a signal of an input terminal to a fourth node under control of the level of the third node;
the first transmission circuit is electrically connected to the first node, the fourth node, and the leakage prevention node, and is configured to control the level of the first node and the level of the leakage prevention node in response to the first clock signal; and
the second transmission circuit is connected to the second node and the fourth node, and is configured to transmit the level of the fourth node to the second node in response to the first clock signal, and
wherein the input terminal is connected to the first clock signal, and wherein the third input circuit is configured to transmit the first clock signal to the fourth node under control of the level of the third node.