Stage circuit, display device including the same, and electronic device including the same
AssigneeSamsung Display Co., Ltd.
InventorsMin Joo Kim, Kyung Hoon Kim
Life of this patent
Estimating the term…
Abstract
A stage circuit includes a first input terminal configured to receive a clock signal, a second input terminal configured to receive a driving signal, an output terminal configured to output a carry signal, an input circuit configured to transmit the driving signal to a first node in response to the clock signal, a voltage control circuit that controls voltages of a first control node and a second control node in response to the driving signal transmitted to the first node, and a carry driver circuit including a boosting capacitor connected between the first control node and the output terminal, and a buffer capacitor configured to maintain the voltage of the output terminal.
Claims20
A stage circuit comprising:
- a first input terminal configured to receive a clock signal;
- a second input terminal configured to receive a driving signal;
- an output terminal configured to output a carry signal;
- an input circuit configured to transmit the driving signal to a first node in response to the clock signal;
- a voltage control circuit configured to control voltages of a first control node and a second control node in response to the driving signal transmitted to the first node;
- and
- a carry driver circuit including a boosting capacitor connected between the first control node and the output terminal, and a buffer capacitor configured to maintain a voltage of the output terminal.
A display device comprising:
- a display panel including a plurality of pixels and scan lines electrically connected to the plurality of pixels;
- and
- a scan driving circuit including a plurality of stage circuits configured to supply scan signals to the plurality of scan lines,
- wherein at least one of the plurality of stage circuits comprises:
- a first input terminal configured to receive a clock signal;
- a second input terminal configured to receive a driving signal;
- a first output terminal configured to output a scan signal of the scan signals;
- a second output terminal configured to output a carry signal;
- an input circuit configured to transmit the driving signal to a first node in response to the clock signal;
- a voltage control circuit configured to control voltages of a first control node and a second control node in response to the driving signal transmitted to the first node;
- a carry driver circuit including a boosting capacitor connected between the first control node and the second output terminal, and a buffer capacitor configured to maintain a voltage of the second output terminal;
- and
- a scan output circuit configured to output the scan signal according to voltages of the first control node and the second control node.
An electronic device comprising:
- a processor configured to output input image data;
- a display device configured to display an image corresponding to the input image data according to a scan signal generated by a plurality of stage circuits,
- wherein at least one of the plurality of stage circuits comprises:
- a first input terminal configured to receive a clock signal;
- a second input terminal configured to receive a driving signal;
- a first output terminal configured to output the scan signal;
- a second output terminal configured to output a carry signal;
- an input circuit configured to transmit the driving signal to a first node in response to the clock signal;
- a voltage control circuit configured to control voltages of a first control node and a second control node in response to the driving signal transmitted to the first node;
- a carry driver circuit including a boosting capacitor connected between the first control node and the output terminal, and a buffer capacitor configured to maintain a voltage of the second output terminal;
- and
- a scan output circuit configured to output the scan signal according to voltages of the first control node and the second control node.
Dependencies are inferred from the claim text.