PIEZOELECTRIC OSCILLATION DEVICE AND TOUCH PANEL DEVICE

WIPO Patent Application WO/2012/090893

A1

In a piezoelectric oscillation device in which a support substrate is oscillated using a bimorph-type piezoelectric oscillation element, the click sensation when the support substrate is operated is improved, and impact resistance of a control panel is improved. Provided is a piezoelectric oscillation device in which wiring is not easily broken. On the reverse side of a touch panel (16), the whole of one principal surface of a bimorph-type piezoelectric oscillation element (20) is bonded via an elastic body (18) having a tensile elasticity of 20-100 MPa as measured according to JIS K7161. The piezoelectric oscillation element (20) has surface electrode layers (30A, 30B) connected to terminal electrodes (36A, 36B) via wires (38A, 38B). The wires (38A, 38B) are formed on top of a wiring protection layer (32) made from an elastic body provided on the reverse side of the touch panel (16), and thus the wires conform to displacement and are resistant to breakage. When the piezoelectric oscillation element (20) is displaced to the touch panel (16) it can transmit a greater amount of displacement to the touch panel (16) than when it is disposed to the reverse side.

ISHII SHIGEO (JP)
SASHIDA NORIKAZU (JP)
WATANABE YOSHIYUKI (JP)

PCT/JP2011/079989

July 05, 2012

December 26, 2011

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TAIYO YUDEN KK (JP)
ISHII SHIGEO (JP)
SASHIDA NORIKAZU (JP)
WATANABE YOSHIYUKI (JP)

G06F3/041

JP2005045691A	2005-02-17
JP2010108490A	2010-05-13
JP2010146576A	2010-07-01
JP2008130055A	2008-06-05
JP2011175518A	2011-09-08

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