Piezoelectric sensor, touch panel, touch input device, and display device

A piezoelectric sensor includes: a piezoelectric sheet which is stretched in a uniaxial direction; an electrode which detects electric charges generated in the piezoelectric sheet; and an optical compensation layer which includes a slow axis stacked on at least one side of the piezoelectric sheet an...

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Bibliographische Detailangaben
Hauptverfasser:	Kano, Hidekazu, Mori, Kenichi
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	A piezoelectric sensor includes: a piezoelectric sheet which is stretched in a uniaxial direction; an electrode which detects electric charges generated in the piezoelectric sheet; and an optical compensation layer which includes a slow axis stacked on at least one side of the piezoelectric sheet and intersects the uniaxial direction, and optically compensates for a phase difference produced when the piezoelectric sheet is stretched in the uniaxial direction.