G11C19/287

Shift register, driving method thereof, gate driving circuit and display device

A shift register, a driving method, a gate driving circuit and a display device are disclosed. The input module controls the potential of the first node. The first reset module controls the potential of the first node. The second reset module controls the potential of the driving signal output terminal. The first output module controls the potential of the driving signal output terminal under the control of the first node. The second output module controls the potential of the driving signal output terminal under the control of the second node. The pull-down driving module controls the potentials of the first node and the second node. Since the node control signal at the node control signal terminal can eliminate the noise on the first node resulting from the change in the first clock signal, the output stability of the shift register can be improved.

Shift register circuit with two discharging modules

A shift register circuit is disclosed. The shift register circuit includes a first gate driving module, a second gate driving module, a first discharging module, and a second discharging module. The first gate driving module has a first node and a first output terminal. The second gate driving module has a second node and a second output terminal. The first discharging module is coupled to the first node, the second node, and the first output terminal respectively. The second discharging module is coupled to the second node, the first node, and the second output terminal respectively. Both the first discharging module and the second discharging module include ten transistors respectively.

SHIFT REGISTER UNIT AND GATE SCANNING CIRCUIT
20190013083 · 2019-01-10 ·

The present disclosure provides a shift register unit and a gate scanning circuit. In the shift register unit, when a first scanning pulse inputting terminal is at a first level, a voltage at a first node is pulled by a first DC voltage terminal; when a second scanning pulse inputting terminal is at the first level, the voltage at a first node is pulled by a second DC voltage terminal. In addition, each stage of the shift register unit have two scanning pulse outputting terminal. In a next period after the first scanning pulse outputting terminal outputs gate driving signals to the Nth row of pixel units, the second scanning pulse outputting terminal may output gate voltages to the (N+1)th row of pixel units.

SHIFT REGISTER UNIT AND DRIVE METHOD THEREOF, SHIFT REGISTER AND DISPLAY APPARATUS
20190012976 · 2019-01-10 ·

The present disclosure provides a shift register unit, which includes an input circuit, a reset circuit, a noise reduction circuit, and an output circuit. The input circuit is configured to control a voltage of a first node based on a first input signal and a second input signal, and control a voltage of a second node based on a first voltage and the voltage of the first node. The reset circuit is configured to reset the voltage of the first node and the voltage of the second node. The noise reduction circuit is configured to maintain a reset voltage of the first node and a reset voltage of the second node. The output circuit is configured to provide, for an output terminal of the output circuit, a second clock signal from a second clock signal terminal or the second voltage. The shift register unit is composed of switch elements.

SHIFT REGISTER CIRCUIT AND DRIVING METHOD THEREOF, GATE DRIVING CIRCUIT, AND DISPLAY DEVICE

A shift register circuit is disclosed that includes an input control circuit configured to set a first node at a first potential in response to an active pulse signal from a signal input terminal, an output control circuit configured to supply a clock signal from a first clock signal terminal to a signal output terminal in response to the first node being at the first potential, the first potential being less than a potential of the active pulse signal and greater than or equal to a potential for maintaining operation of the output control circuit, and a reset circuit configured to supply a reference voltage from a reference voltage terminal to the first node and the signal output terminal in response to a reset signal.

Display device
10176775 · 2019-01-08 · ·

A disclosed display device comprises a display panel having a display area configured to display an image. The display panel includes in the display area a plurality of data lines extending in a first direction, a plurality of gate lines extending in a second direction and crossing the data lines, and a plurality of pixels defined by the data lines and the gate lines, and arranged in a plurality of rows and a plurality of columns. The display device further comprises at least one gate in panel (GIP) circuit disposed in the display area and having a plurality of signal lines and a plurality of transistors each respectively disposed between two adjacent columns of the pixels among the columns.

SHIFT REGISTER UNIT CIRCUIT, METHOD OF DRIVING THE SAME, GATE DRIVE CIRCUIT, AND DISPLAY APPARATUS
20190006018 · 2019-01-03 ·

A shift register unit circuit is disclosed that includes a first node control circuit, a second node control circuit, and a plurality of output circuits. Each of the plurality of output circuits is connected to a respective output terminal and provides a gate drive signal to the respective output terminal. Also disclosed are a method of driving the shift register unit circuit, a gate drive circuit, and a display apparatus.

SHIFT REGISTER AND METHOD FOR DRIVING THE SAME, GATE DRIVING CIRCUIT AND DISPLAY DEVICE
20190005867 · 2019-01-03 · ·

A shift register and a method for driving the same, a gate driving circuit, and a display device, the shift register includes: a pull-up node control circuit allowing a potential of a pull-up node to become high according to a first input signal and a second input signal; a first capacitor coupled between a signal output terminal and the pull-up node of the shift register; a pull-down node control circuit controlling a potential of the pull-down node according to the second clock signal and the third clock signal and the potential of the pull-up node; an output circuit controlling an output of a gate driving signal at the signal output terminal; and a pull-down circuit allowing the potential of the pull-up node and a potential of the signal output terminal to become low.

SHIFT REGISTER AND DISPLAY APPARATUS
20180366208 · 2018-12-20 ·

A shift register and a display apparatus are provided. The shift register includes a pre-charge unit, a pull-up unit, a first pull-down unit and a second pull-down unit. The pre-charge unit receives first and second input signals, and outputs a pre-charge signal via a first node. The pull-up unit receives a pre-charge signal and a clock signal, and outputs a scanning signal via a second node. The first pull-down unit receives the pre-charge signal, first and second pull-down control signals, and controls whether to pull-down the scanning signal to a reference voltage level. The second pull-down unit receives the pre-charge signal, first and second pull-down control signals, and controls whether to keep the scanning signal at the reference voltage level. The duty cycle of the clock signal is less than 50 percent.

RESET CIRCUIT, SHIFT REGISTER UNIT, AND GATE SCANNING CIRCUIT

A reset circuit for compensating a level reduction at a first node during a first stage without affecting levels during a second stage includes a reset portion, a reset control portion, and at least three input terminals. The reset portion is coupled to the first and second input terminals, and a second node, and is configured to be turned on if the second node is at a first level, to electrically couple the second and first input terminals. The reset control portion is coupled to the first, second, and third input terminals, and the second node, and is configured to electrically couple the second input terminal with the second node if the first input terminal is at the first level, and to electrically couple the second node with the third input terminal if the second input terminal is at a second level.