Detection device
AssigneeJapan Display Inc.
InventorsFumihoru Nakano, Hiroshi Yamaguchi
Life of this patent
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Abstract
A detection device includes a shield layer provided with a shield electrode and a shield electrode connection wiring connected to the shield electrode, and a sensor layer located over the shield layer and provided with a sensor electrode and a sensor electrode connection wiring connected to the sensor electrode. The shield electrode has the same planar pattern as the sensor electrode and overlaps the sensor electrode. The shield electrode connection wiring has the same planar pattern as the sensor electrode connection wiring and overlaps the sensor electrode connection wiring.
Claims5
A detection device comprising:
- a shield layer provided with a shield electrode and a shield electrode connection wiring connected to the shield electrode;
- a sensor layer located over the shield layer and provided with a sensor electrode and a sensor electrode connection wiring connected to the sensor electrode;
- and
- a terminal portion connected to a detection circuit and provided with a first terminal and a second terminal,
- wherein the shield electrode has a same planar pattern as the sensor electrode and overlaps the sensor electrode,
- the shield electrode connection wiring has a same planar pattern as the sensor electrode connection wiring and overlaps the sensor electrode connection wiring,
- the first terminal and the second terminal are provided in the shield layer,
- the detection circuit comprises:
- a first detection signal amplifier circuit to which a first detection signal and a first AC rectangular wave output from the first terminal are input, and
- a second detection signal amplifier circuit to which a second detection signal and a second AC rectangular wave output from the second terminal are input, and
- a phase of the second AC rectangular wave is different from a phase of the first AC rectangular wave.
A detection device comprising:
- a shield layer provided with a shield electrode and a shield electrode connection wiring connected to the shield electrode;
- a sensor layer located over the shield layer and provided with a sensor electrode and a sensor electrode connection wiring connected to the sensor electrode;
- and
- a terminal portion connected to a detection circuit and provided with a first terminal and a second terminal,
- wherein the shield electrode has a same planar pattern as the sensor electrode and overlaps the sensor electrode,
- the shield electrode connection wiring has a same planar pattern as the sensor electrode connection wiring and overlaps the sensor electrode connection wiring,
- the first terminal is provided in the sensor layer,
- the second terminal is provided in the shield layer,
- the detection circuit comprises:
- a first detection signal amplifier circuit to which a first detection signal and a first AC rectangular wave output from the first terminal are input, and
- a second detection signal amplifier circuit to which a second detection signal and a second AC rectangular wave output from the second terminal are input, and
- a phase of the second AC rectangular wave is different from a phase of the first AC rectangular wave.
Dependencies are inferred from the claim text.