HAPTIC FEEDBACK USING COMPOSITE PIEZOELECTRIC ACTUATOR

The present invention concerns an electronic device (10) comprising a display layer (44) configured to visually display images; a touch sensitive layer (36) located on a front side of the displayer layer (44) and configured to sense if an object touches the touch sensitive layer (46) and to sense wh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Modarres, Ali, Grant, Danny A, Ramstein, Christophe, Cruz-Hernandez, Juan Manuel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention concerns an electronic device (10) comprising a display layer (44) configured to visually display images; a touch sensitive layer (36) located on a front side of the displayer layer (44) and configured to sense if an object touches the touch sensitive layer (46) and to sense where the touch sensitive layer (36) is contacted; a composite piezoelectric assembly (26) placed on a backside of the display layer, wherein the composite piezoelectric assembly comprises a first electrode layer (38), a second electrode layer (42), and a composite piezoelectric layer (40) between the first electrode layer and the second electrode layer; and a drive circuit (32) configured to apply an alternating voltage to the first electrode layer and the second electrode layer.