Touch sensor, touch pad and input device
First Claim
1. A touch sensora contact sensor, including a first electrode and a first switching element connected to the first electrode, configured to detect a change in an electric potential when an object contacts a surface;
- a pressure sensor, including a second electrode and a second switching element connected to the second electrode, configured to detect a change in a pressure when an object depresses the surface and,a piezoelectric provided on the first switching element and the second switching element, whereinthe first electrode is provided on the piezoelectric and is connected to the first switching element through a contact part in a contact hole formed in the piezoelectric, andthe second electrode is provide under the piezoelectric anda plurality of the contact sensors and a plurality of the pressure sensors are disposed regularly in an array.
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Accused Products
Abstract
A touch sensor includes a contact sensor and a pressure sensor. The contact sensor includes a first electrode and a first switching element connected to the first electrode, and detects a change in an electric potential when an object contacts a surface. The pressure sensor includes a second electrode and a second switching element connected to the second electrode, and detects a change in a pressure when an object depresses the surface. The touch sensor includes a plurality of the contact sensors and a plurality of the pressure sensors disposed regularly in an array.
118 Citations
11 Claims
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1. A touch sensor
a contact sensor, including a first electrode and a first switching element connected to the first electrode, configured to detect a change in an electric potential when an object contacts a surface; -
a pressure sensor, including a second electrode and a second switching element connected to the second electrode, configured to detect a change in a pressure when an object depresses the surface and, a piezoelectric provided on the first switching element and the second switching element, wherein the first electrode is provided on the piezoelectric and is connected to the first switching element through a contact part in a contact hole formed in the piezoelectric, and the second electrode is provide under the piezoelectric and a plurality of the contact sensors and a plurality of the pressure sensors are disposed regularly in an array. - View Dependent Claims (2, 9)
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3. A touch pad comprising:
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a contact sensor, including a first electrode and a first switching element connected to the first electrode, configured to detect a change in an electric potential when an object contacts a surface; and a pressure sensor, including a second electrode and a second switching element connected to the second electrode, configured to detect a change in a pressure when an object depresses the surface and, a piezoelectric provided on the first switching element and the second switching element, wherein the first electrode is provided on the piezoelectric and is connected to the first switching element through a contact part in a contact hole formed in the piezoelectric, and the second electrode is provide under the piezoelectric, and a plurality of the contact sensors and a plurality of the pressure sensors are disposed regularly in an array, and a CPU configured to generate a control signal based on a signal outputted from the touch sensor; and
to send the control signal to an external device. - View Dependent Claims (10)
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4. An input device comprising:
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a contact sensor, including a first electrode and a first switching element connected to the first electrode, configured to detect a change in an electric potential when an object contacts a surface; and a pressure sensor, including a second electrode and a second switching element connected to the second electrode, configured to detect a change in a pressure when an object depresses the surface and, a piezoelectric provided on the first switching element and the second switching element, wherein the first electrode is provided on the piezoelectric and is connected to the first switching element through a contact part in a contact hole formed in the piezoelectric, and the second electrode is provide under the piezoelectric and a plurality of the contact sensors and a plurality of the pressure sensors are disposed regularly in an array, a CPU configured to generate a control signal based on a signal outputted from the touch sensor; and
to send the control signal to an external device, anda display configured to output information in response to the control signal, the information corresponding to the position detected by the contact sensor, or corresponding to the position detected by the pressure sensor. - View Dependent Claims (5, 6, 7, 8, 11)
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Specification