Back to results
US 9,804,725 B2Granted
Touch panel and touch type input device
AssigneeMurata Manufacturing Co., Ltd.
InventorMasamichi Andoh
Life of this patent
Estimating the term…
Abstract
A touch panel that includes a film having piezoelectric properties, the film having a first principal plane and a second principal plane. A divided electrode is on the first principal plane, and a uniform ground electrode is on the second principal plane and arranged opposite to the divided electrode on the first principal plane.
Claims22
A touch panel comprising:
- a single unitary film having piezoelectric properties, the single unitary film having a first principal plane and a second principal plane;
- a divided electrode having a plurality of sections on the first principal plane;
- and
- a ground electrode on the second principal plane and arranged opposite to the divided electrode on the first principal plane,
- the single unitary film having piezoelectric properties being constructed to generate independent voltages in regions beneath and corresponding to a respective section of each of the plurality of sections of the divided electrode when the single unitary film having piezoelectric properties is deformed at a deformation location, and
- a voltage profile of the divided electrode changes when the deformation location changes within the regions corresponding to the respective section of each of the plurality of sections of the divided electrode.
3 more elements
Dependencies are inferred from the claim text.