Abstract: A piezoelectric touch device is provided. According to a first aspect, a piezoelectric touch device comprises: a conductive support structure comprising an inseparable section as a bridge separated by a first opening; a piezoelectric element configured to provide a touch sensing and a haptic feedback; connection pads configured to form an electrically connected circuit for the piezoelectric element, wherein the piezoelectric element is electrically connected to the connection pads, and wherein the bridge comprises one of the connection pads and the conductive support structure comprises another of the connection pads; a second opening next to the another connection pad allowing the piezoelectric element to bend freely. The piezoelectric touch device for touch sensing and haptic feedback may be consequently manufactured with an improved manufacturability.

Abstract: A piezoelectric touch device is provided. According to a first aspect, a piezoelectric touch device comprises: a conductive support structure comprising an inseparable section as a bridge separated by a first opening; a piezoelectric element configured to provide a touch sensing and a haptic feedback; connection pads configured to form an electrically connected circuit for the piezoelectric element, wherein the piezoelectric element is electrically connected to the connection pads, and wherein the bridge comprises one of the connection pads and the conductive support structure comprises another of the connection pads; a second opening next to the another connection pad allowing the piezoelectric element to bend freely. The piezoelectric touch device for touch sensing and haptic feedback may be consequently manufactured with an improved manufacturability.

Abstract: An apparatus or installation comprises a surface (2) and at least one piezoelectric sensor device (18, 27, 90) that is a piezoelectric touch switch comprising at least one piezoelectric sensor (13), located below the surface (2) so that the surface (2) functions as an overlay to the piezoelectric touch switch, the piezoelectric sensor device (18, 27, 90) configured so that the piezoelectric sensor (13) bends in response to a force or pressure exerted on the surface (2) causing the surface (2) to bend. The apparatus (1) or installation comprises continuously adjustable compression adjusting means (6) that operate on the backer piece (5) to compress the piezoelectric sensor device (18, 27, 90) and the at least one squeezer (7) between the overlay (2) and the backer piece (5), for compensating the surface or mounting tolerances.

Abstract: An apparatus or installation comprises a surface (2) and at least one piezoelectric sensor device (18, 27, 90) that is a piezoelectric touch switch comprising at least one piezoelectric sensor (13), located below the surface (2) so that the surface (2) functions as an overlay to the piezoelectric touch switch, the piezoelectric sensor device (18, 27, 90) configured so that the piezoelectric sensor (13) bends in response to a force or pressure exerted on the surface (2) causing the surface (2) to bend. The apparatus (1) or installation comprises continuously adjustable compression adjusting means (6) that operate on the backer piece (5) to compress the piezoelectric sensor device (18, 27, 90) and the at least one squeezer (7) between the overlay (2) and the backer piece (5), for compensating the surface or mounting tolerances.