Electronic device
A display apparatus which can reduce a parasitic capacitance during driving of driving electrodes based on a self-capacitance detecting method is provided. The display apparatus includes: a plurality of connection wires which are formed in a peripheral area and are connected to a plurality of corresponding video signal lines; a video signal line selection circuit which is connected with a plurality of connection wires, selects at least one connection wire and supplies a signal to the video signal lines; self-capacitance detection wires which extend in a direction intersecting an extension direction of the connection wires and intersects the connection wires; common wires which electrically connect the self-capacitance detection wires and drive electrodes; and transistors which are provided between the self-capacitance detection wires and the common wires. Further, the self-capacitance detection wires extend between a display area and the video signal line selection circuit in a plan view.
1. An electronic device comprising:
a first electrode, a second electrode facing the first electrode, and a plurality of signal lines, which are in a display area;
a plurality of connection wires which are in a peripheral area and which are connected to the plurality of corresponding signal lines;
a selection circuit which is connected with the plurality of connection wires, which selects at least one connection wire of the plurality of connection wires and which supplies a signal to one signal line of the plurality of signal lines via the connection wire;
a first wire which extends in a direction intersecting an extension direction of the connection wires and which intersects the connection wires;
a second wire which electrically connects the first wire and the second electrode;
a switching element which is between the first wire and the second wire; and
a detection circuit which is connected to the first wire and which supplies a drive signal to the second electrode via the switching element and the second wire,
wherein
the selection circuit is between the display area and the connection wires in a plan view,
the switching element is between the display area and the selection circuit in a plan view, and
the first wire extends between the selection circuit and the switching element in a plan view.
2. The electronic device according to claim 1 ,
wherein the second electrode also has a function of a detection electrode which detects approach or contact of an object, and
the detection circuit detects the approach or the contact of the object based on a self-capacitance detecting method.
3. The electronic device according to claim 1 ,
wherein the signal lines are video signal lines, and
the selection circuit is a video signal line selection circuit.
4. The electronic device according to claim 1 ,
wherein the connection wires are floated in terms of a potential during detection.
5. The electronic device according to claim 1 , further comprising
a switch circuit which is connected to the connection wires and which supplies the same potential as a potential supplied to the first wire, to the connection wires.
6. The electronic device according to claim 4 ,
wherein a ground potential is supplied to the connection wire which is between a drive circuit and the selection circuit.
7. The electronic device according to claim 4 , further comprising
a scan signal line,
wherein the scan signal line is floated in terms of a potential.
8. The electronic device according to claim 4 , further comprising:
a scan signal line; and
a switch circuit which supplies the same potential as a potential supplied to the first wire, to the scan signal line.
9. The electronic device according to claim 2 ,
wherein the signal lines are video signal lines, and
the selection circuit is a video signal line selection circuit.
10. The electronic device according to claim 2 ,
wherein the connection wires are floated in terms of a potential during detection.
11. The electronic device according to claim 3 ,
wherein the connection wires are floated in terms of a potential during detection.
12. The electronic device according to claim 2 , further comprising
a switch circuit which is connected to the connection wires and which supplies the same potential as a potential supplied to the first wire, to the connection wires.
13. The electronic device according to claim 3 , further comprising
a switch circuit which is connected to the connection wires and which supplies the same potential as a potential supplied to the first wire, to the connection wires.
14. The electronic device according to claim 5 ,
wherein a ground potential is supplied to the connection wire which is between a drive circuit and the selection circuit.
15. The electronic device according to claim 5 , further comprising
a scan signal line,
wherein the scan signal line is floated in terms of a potential.
16. The electronic device according to claim 6 , further comprising
a scan signal line,
wherein the scan signal line is floated in terms of a potential during detection.
17. The electronic device according to claim 5 , further comprising:
a scan signal line; and
a switch circuit which supplies the same potential as a potential supplied to the first wire, to the scan signal line during detection.
18. The electronic device according to claim 6 , further comprising:
a scan signal line; and
a switch circuit which supplies the same potential as a potential supplied to the first wire, to the scan signal line during detection.