Shift register circuit and display device
The present disclosure relates to the field of display technologies, and in particular, to a shift register circuit and a display device. The shift register circuit may include a plurality of GOAs for outputting scan signals to a plurality of pixel driving circuits and a plurality of EOAs for outputting control signals to the plurality of pixel driving circuits, where the GOAs and the EOAs are alternately arranged in a straight line.
1. A shift register circuit configured to output scan signals and control signals to a plurality of pixel driving circuits, the shift register circuit comprising:
a plurality of gate on array GOAs configured to output the scan signals to the plurality of pixel driving circuits; and
a plurality of emission on array EOAs configured to output the control signals to the plurality of pixel driving circuits, wherein the GOAs and the EOAs are alternately arranged in a column direction;
wherein the plurality of pixel driving circuits are arranged in N rows, the plurality of gate on array GOAs comprise N/2 first GOAs, and the plurality of emission on array EOAs comprise N/2 first EOAs and N/2 second EOAs;
N/2 cascaded first GOAs and N/2 cascaded first EOAs are arranged in a column and disposed on a first side of the pixel driving circuits, and N/2 cascaded second EOAs are arranged in a column and disposed on a second side of the pixel driving circuits;
an output terminal of a first GOA in an nth row is connected to scan-signal input terminals of pixel driving circuits in the nth row and in an (n+1)th row;
an output terminal of a first EOA in the (n+1)th row is connected to a control-signal input terminal of a pixel driving circuit in the nth row;
an output terminal of a second EOA in the (n+1)th row is connected to a control-signal input terminal of a pixel driving circuit in the (n+1)th row; and
N is an even number, n is an odd number and n∈N.
2. The shift register circuit according to claim 1 , wherein taking one display frame as a unit, input terminals of the first EOAs and the second EOA in a second row are alternately input with a first gate drive signal.
3. The shift register circuit according to claim 1 , wherein the plurality of gate on array GOAs further comprise: N/2 cascaded second GOAs disposed on the second side of the pixel driving circuits, wherein an output terminal of a second GOA in the nth row is connected to scan-signal input terminals of the pixel driving circuit in the nth row and the (n+1)th row, N is an even number, n is an odd number and n∈N.
4. The shift register circuit according to claim 3 , wherein the output terminal of the second GOA in the nth row is connected to reset terminals of the pixel driving circuits in an (n+2)th row and in an (n+3)the row.
5. The shift register circuit according to claim 1 , wherein the output terminal of the first GOA in the nth row is connected to reset terminals of the pixel driving circuits in an (n+2)th row and in an (n+3)the row.
6. The shift register circuit according to claim 1 , wherein each of the plurality of GOAs comprise comprises:
a first switching element having a control terminal for receiving a first signal, a first terminal for receiving a second gate drive signal, and a second terminal connected to a first node;
a second switching element having a control terminal connected to the first node, a first terminal connected to a second node, and a second terminal for receiving the first signal;
a third switching element having a control terminal for receiving the first signal, a first terminal for receiving a second power signal, a second terminal connected to the second node;
a fourth switching element having a control terminal connected to the second node, a first terminal for receiving a first power signal, and a second terminal connected to the output terminal of the GOA;
a fifth switching element having a control terminal connected to a third node, a first terminal for receiving a second signal, and a second terminal connected to the output terminal of the GOA;
a sixth switching element having a control terminal connected to the second node, a first terminal for receiving the first power signal, and a second terminal connected to a fourth node;
a seventh switching element having a control terminal for receiving the second signal, a first terminal connected to the fourth node, and a second terminal connected to the first node;
an eighth switching element having a control terminal for receiving the second power signal, a first terminal connected to the first node, and a second terminal connected to the third node;
a first storage capacitor having a first terminal connected to the first terminal of the fourth switching element, and a second terminal connected to the second node; and
a second storage capacitor having a first terminal connected to the third node, and a second terminal connected to the output terminal of the GOA.
7. The shift register circuit according to claim 6 , wherein:
the switching elements are all N-type thin film transistors, the first terminal of each switching element is a drain electrode, and the second terminal of each switching element is a source electrode; or
the switching elements are all P-type thin film transistors, the first terminal of each switching element is a source electrode, and the second terminal of each switching element is a drain electrode.
8. The shift register circuit according to claim 1 , wherein each of the plurality of EOAs comprises:
a ninth switching element having a control terminal for receiving a third signal, a first terminal for receiving a first gate drive signal, and a second terminal connected to a fifth node;
a tenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the third signal, and a second terminal connected to a sixth node;
an eleventh switching element having a control terminal connected to the sixth node, a first terminal for receiving a first power signal, and a second terminal connected to a seventh node;
a twelfth switching element having a control terminal for receiving a fourth signal, a first terminal connected to the fifth node, and a second terminal connected to the seventh node;
a thirteenth switching element having a control terminal for receiving the third signal, a first terminal for receiving a second power signal, and a second terminal connected to the sixth node;
a fourteenth switching element having a control terminal connected to the sixth node, a first terminal for receiving the fourth signal, and a second terminal connected to an eighth node;
a fifteenth switching element having a control terminal for receiving the fourth signal, a first terminal connected to the eighth node, and a second terminal connected to a ninth node;
a sixteenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the first power signal, and a second terminal connected to the ninth node;
a seventeenth switching element having a control terminal connected to the ninth node, a first terminal for receiving the first power signal, and a second terminal connected to the output terminal of the EOA;
an eighteenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the second power signal, and a second terminal connected to the output terminal of the EOA;
a third storage capacitor having a first terminal connected to the sixth node, and a second terminal connected to the eighth node;
a fourth storage capacitor having a first terminal connected to the ninth node, and a second terminal for receiving the first power signal; and
a fifth storage capacitor having a first terminal for receiving the fourth signal, and a second terminal connected to the fifth node.
9. The shift register circuit according to, claim 8 , wherein:
the switching elements are all N-type thin film transistors, the first terminal of each switching element is a drain electrode, and the second terminal of each switching element is a source electrode; or
the switching elements are all P-type thin film transistors, the first terminal of each switching element is a source electrode, and the second terminal of each switching element is a drain electrode.
10. A display device, comprising:
a plurality of pixel driving circuits and a shift register circuit configured to output scan signals and control signals to the plurality of pixel driving circuits, wherein the shift register comprises:
a plurality of gate on array GOAs configured to output the scan signals to the plurality of pixel driving circuits; and
a plurality of emission on array EOAs configured to output the control signals to the plurality of pixel driving circuits, wherein the GOAs and the EOAs are alternately arranged in a column direction;
wherein the plurality of pixel driving circuits are arranged in N rows, the plurality of gate on array GOAs comprise N/2 first GOAs, and the plurality of emission on array EOAs comprise N/2 first EOAs and N/2 second EOAs;
N/2 cascaded first GOAs and N/2 cascaded first EOAs are arranged in a column and disposed on a first side of the pixel driving circuits, and N/2 cascaded second EOAs are arranged in a column and disposed on a second side of the pixel driving circuits;
an output terminal of a first GOA in an nth row is connected to scan-signal input terminals of pixel driving circuits in the nth row and in an (n+1)th row;
an output terminal of a first EOA in the (n+1)th row is connected to a control-signal input terminal of a pixel driving circuit in the nth row;
an output terminal of a second EOA in the (n+1)th row is connected to a control-signal input terminal of a pixel driving circuit in the (n+1)th row; and
N is an even number, n is an odd number, and n∈N.
11. The display device according to claim 10 , wherein, the output terminal of the first GOA in the nth row is connected to reset terminals of the pixel driving circuits in an (n+2)th row and in an (n+3)the row.
12. The display device according to claim 11 , wherein taking one display frame as a unit, input terminals of the first EOA and the second EOA in a second row are alternately input with a first gate drive signal.
13. The display device according to claim 11 , wherein the plurality of gate on array GOAs further comprise: N/2 cascaded second GOAs disposed on the second side of the pixel driving circuits, wherein an output terminal of a second GOA in the nth row is connected to scan-signal input terminals of the pixel driving circuit in the nth row and the (n+1)th row, N is an even number, n is an odd number and n∈N.
14. The display device according to claim 13 , wherein, the output terminal of the second GOA in the nth row is connected to reset terminals of the pixel driving circuits in an (n+2)th row and in an (n+3)the row.
15. The display device according to claim 11 , wherein each of the plurality of GOAs comprises:
a first switching element having a control terminal for receiving a first signal, a first terminal for receiving a second gate drive signal, and a second terminal connected to a first node;
a second switching element having a control terminal connected to the first node, a first terminal connected to a second node, and a second terminal for receiving the first signal;
a third switching element having a control terminal for receiving the first signal, a first terminal for receiving a second power signal, a second terminal connected to the second node;
a fourth switching element having a control terminal connected to the second node, a first terminal for receiving a first power signal, and a second terminal connected to the output terminal of the GOA;
a fifth switching element having a control terminal connected to a third node, a first terminal for receiving a second signal, and a second terminal connected to the output terminal of the GOA;
a sixth switching element having a control terminal connected to the second node, a first terminal for receiving the first power signal, and a second terminal connected to a fourth node;
a seventh switching element having a control terminal for receiving the second signal, a first terminal connected to the fourth node, and a second terminal connected to the first node;
an eighth switching element having a control terminal for receiving the second power signal, a first terminal connected to the first node, and a second terminal connected to the third node;
a first storage capacitor having a first terminal connected to the first terminal of the fourth switching element, and a second terminal connected to the second node; and
a second storage capacitor having a first terminal connected to the third node, and a second terminal connected to the output terminal of the GOA.
16. The display device according to claim 15 , wherein:
the switching elements are all N-type thin film transistors, the first terminal of each switching element is a drain electrode, and the second terminal of each switching element is a source electrode; or
the switching elements are all P-type thin film transistors, the first terminal of each switching element is a source electrode, and the second terminal of each switching element is a drain electrode.
17. The display device according to claim 11 , wherein each of the plurality of EOAs comprises:
a ninth switching element having a control terminal for receiving a third signal, a first terminal for receiving a first gate drive signal, and a second terminal connected to a fifth node;
a tenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the third signal, and a second terminal connected to a sixth node;
an eleventh switching element having a control terminal connected to the sixth node, a first terminal for receiving a first power signal, and a second terminal connected to a seventh node;
a twelfth switching element having a control terminal for receiving a fourth signal, a first terminal connected to the fifth node, and a second terminal connected to the seventh node;
a thirteenth switching element having a control terminal for receiving the third signal, a first terminal for receiving a second power signal, and a second terminal connected to the sixth node;
a fourteenth switching element having a control terminal connected to the sixth node, a first terminal for receiving the fourth signal, and a second terminal connected to an eighth node;
a fifteenth switching element having a control terminal for receiving the fourth signal, a first terminal connected to the eighth node, and a second terminal connected to a ninth node;
a sixteenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the first power signal, and a second terminal connected to the ninth node;
a seventeenth switching element having a control terminal connected to the ninth node, a first terminal for receiving the first power signal, and a second terminal connected to the output terminal of the EOA;
an eighteenth switching element having a control terminal connected to the fifth node, a first terminal for receiving the second power signal, and a second terminal connected to the output terminal of the EOA;
a third storage capacitor having a first terminal connected to the sixth node, and a second terminal connected to the eighth node;
a fourth storage capacitor having a first terminal connected to the ninth node, and a second terminal for receiving the first power signal; and
a fifth storage capacitor having a first terminal for receiving the fourth signal, and a second terminal connected to the fifth node.
18. The display device according to claim 17 , wherein:
the switching elements are all N-type thin film transistors, the first terminal of each switching element is a drain electrode, and the second terminal of each switching element is a source electrode; or
the switching elements are all P-type thin film transistors, the first terminal of each switching element is a source electrode, and the second terminal of each switching element is a drain electrode.