GATE DRIVING CIRCUIT AND A DRIVING METHOD THEREOF, AS WELL AS A DISPLAY DEVICE
First Claim
1. A gate driving circuit, characterized in that, comprising:
- a plurality of mutually cascaded shift register units located in a first region and a second region respectively, except for a first stage of shift register unit of the first region, a signal output terminal of each of the other shift register units is connected to a reset signal terminal of a previous stage of shift register unit adjacent to it, and except for the last stage of shift register unit of the second region, a signal output terminal of each of the other shift register units is connected to a signal input terminal of a next stage of shift register unit adjacent to it; and
a pre-charging unit connected to a first stage of shift register unit of the second region,wherein gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately, and the pre-charging unit is used for pre-charging the first stage of shift register unit of the second region during the touch control scanning.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a gate driving circuit and a driving method thereof, a display device, which relates to the field of display technology. The gate driving circuit may comprise a plurality of mutually cascaded shift register units and a pre-charging unit, the gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately. By additionally arranging a pre-charging unit connected with the corresponding first stage of shift register unit when the gate row drive scanning is performed again after the touch control scanning is accomplished, the first stage of shift register unit can be pre-charged during the touch control scanning. In this way, the electric leakage phenomenon of the pull-up control node (PU point) of the corresponding first stage of shift register unit when the gate row drive scanning is performed again after the touch control scanning is accomplished due to a relatively long touch control scanning time interval between outputs of two rows of shift register units is avoided, thereby avoiding the defect of insufficient charging rate of row of pixels while ensuring touch control scanning of high report rate.
31 Citations
15 Claims
-
1. A gate driving circuit, characterized in that, comprising:
-
a plurality of mutually cascaded shift register units located in a first region and a second region respectively, except for a first stage of shift register unit of the first region, a signal output terminal of each of the other shift register units is connected to a reset signal terminal of a previous stage of shift register unit adjacent to it, and except for the last stage of shift register unit of the second region, a signal output terminal of each of the other shift register units is connected to a signal input terminal of a next stage of shift register unit adjacent to it; and a pre-charging unit connected to a first stage of shift register unit of the second region, wherein gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately, and the pre-charging unit is used for pre-charging the first stage of shift register unit of the second region during the touch control scanning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15)
-
-
11. A method for driving a gate driving circuit, the gate driving circuit comprising:
- a plurality of mutually cascaded shift register units located in a first region and a second region respectively, except for a first stage of shift register unit of the first region, a signal output terminal of each of the other shift register units is connected to a reset signal terminal of a previous stage of shift register unit adjacent to it, and except for the last stage of shift register unit of the second region, a signal output terminal of each of the other shift register units is connected to a signal input terminal of a next stage of shift register unit adjacent to it; and
a pre-charging unit connected to a first stage of shift register unit of the second region, characterized in that the method comprises;performing gate row drive scanning to the shift register units located in the first region in the gate driving circuit; performing touch control scanning after the gate row drive scanning of the shift register units located in the first region is accomplished, performing pre-charging to the first stage of shift register unit of the second region during the touch control scanning; and performing gate row drive scanning to the shift register units located in the second region in the gate driving circuit. - View Dependent Claims (12)
- a plurality of mutually cascaded shift register units located in a first region and a second region respectively, except for a first stage of shift register unit of the first region, a signal output terminal of each of the other shift register units is connected to a reset signal terminal of a previous stage of shift register unit adjacent to it, and except for the last stage of shift register unit of the second region, a signal output terminal of each of the other shift register units is connected to a signal input terminal of a next stage of shift register unit adjacent to it; and
-
13. A display device, characterized in that, comprising a gate driving circuit, the gate driving circuit comprising:
-
a plurality of mutually cascaded shift register units located in a first region and a second region respectively, except for a first stage of shift register unit of the first region, a signal output terminal of each of the other shift register units is connected to a reset signal terminal of a previous stage of shift register unit adjacent to it, and except for the last stage of shift register unit of the second region, a signal output terminal of each of the other shift register units is connected to a signal input terminal of a next stage of shift register unit adjacent to it; and a pre-charging unit connected to a first stage of shift register unit of the second region, wherein gate row drive scanning and touch control scanning of the plurality of mutually cascaded shift register units are performed alternately, and the pre-charging unit is used for pre-charging the first stage of shift register unit of the second region during the touch control scanning.
-
Specification