Touch Panel, and Touch-Type Input Apparatus and Control Method Therefor
First Claim
1. A touch panel comprising:
- a piezoelectric sheet of poly-L-lactic acid having a stretching axis oriented in a predetermined direction; and
a plurality of electrodes on said piezoelectric sheet;
said piezoelectric sheet is in such a condition that tension is imparted in a direction that forms approximately a 45 degree angle with said stretching axis.
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Accused Products
Abstract
A touch panel capable of detecting a pen and a finger, capable of corresponding to multi-touch, capable of detecting pressing force, and capable of reducing the use amount of a transparent electrode as much as possible. The touch panel has a piezoelectric sheet of poly-L-lactic acid having a predetermined stretching axial direction, electrodes that are opposed to each other and formed on the piezoelectric sheet do not cover the entire surface of the piezoelectric sheet and are formed so that they are discretely distributed in plural positions. The piezoelectric sheet is brought into the condition that tension is imparted in directions not coincident with the stretching axial direction.
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Citations
3 Claims
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1. A touch panel comprising:
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a piezoelectric sheet of poly-L-lactic acid having a stretching axis oriented in a predetermined direction; and a plurality of electrodes on said piezoelectric sheet; said piezoelectric sheet is in such a condition that tension is imparted in a direction that forms approximately a 45 degree angle with said stretching axis. - View Dependent Claims (2, 3)
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Specification