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US 10,503,291 B2Granted
Touch input device and electronic device
AssigneeMurata Manufacturing Co., Ltd.
InventorTakashi Kihara
Life of this patent
Estimating the term…
Abstract
A touch input device that includes a housing which has an insulation property; a piezoelectric element group which includes a plurality of piezoelectric elements which produce charges when stretched in a direction parallel to a flat film surface; and an adhesive member which adheres the piezoelectric element group to a back surface of the housing.
Claims15
A touch input device comprising:
- a housing having a front wall extending in a longitudinal direction and having a front surface, a back surface opposite the front surface, a first side extending along the longitudinal direction, and a second side surface opposite the first side surface and extending along the longitudinal direction;
- a first sidewall connected to the first side surface and extending along the longitudinal direction;
- and a second sidewall connected to the second side surface and extending along the longitudinal direction;
- a single piezoelectric sheet having a first surface and a second surface and extending along the longitudinal direction;
- a first detection electrode on the first surface of the single piezoelectric sheet;
- a second detection electrode on the second surface of the single piezoelectric sheet, the first detection electrode and the second detection electrode facing each other through the single piezoelectric sheet to form a first piezoelectric element having a flat film shape and producing a voltage when stretched in a direction parallel to a principal surface thereof;
- a third detection electrode on the first surface of the single piezoelectric sheet and arranged in a row along the longitudinal direction with the first detection electrode;
- a fourth detection electrode on the second surface of the single piezoelectric sheet and arranged in a row along the longitudinal direction with the second detection electrode, the third detection electrode and the fourth detection electrode facing each other through the single piezoelectric sheet to form a second piezoelectric element having a flat film shape and producing a voltage when stretched in a direction parallel to a principal surface thereof, wherein the first and second piezoelectric elements are constructed to detect a pressing location on the housing;
- and
- an adhesive member adhering the first and second piezoelectric elements and/or the single piezoelectric sheet to the back surface of the front wall of the housing.
7 more elements
A touch input device comprising:
- a housing having a front wall extending in a longitudinal direction and having a front surface, a back surface opposite the front surface, a first side extending along the longitudinal direction, and a second side surface opposite the first side surface and extending along the longitudinal direction;
- a first sidewall connected to the first side surface and extending along the longitudinal direction;
- and a second sidewall connected to the second side surface and extending along the longitudinal direction;
- a single piezoelectric sheet having a first surface and a second surface and extending along the longitudinal direction;
- a plurality of first detection electrodes on the first surface of the single piezoelectric sheet, the plurality of;
- a plurality of second detection electrodes on the second surface of the single piezoelectric sheet, the plurality of first detection electrodes and the plurality of second detection electrodes respectively facing each other through the single piezoelectric sheet to form a plurality of piezoelectric elements, each of which having a flat film shape and producing voltages when stretched in a direction parallel to a principal surface thereof, and the plurality of piezoelectric elements are constructed to detect a pressing location on the housing and are arranged in a row along the longitudinal direction with respect to each other;
- and
- an adhesive member adhering the plurality of piezoelectric elements and/or the single piezoelectric sheet to the back surface of the front wall of the housing.
5 more elements
Dependencies are inferred from the claim text.