The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2021
Filed:
Dec. 13, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Mark Thomas Johnson, Eindhoven, NL;
David Andrew Fish, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An active matrix array of electroactive polymer actuators () is provided, each electroactive polymer actuator () having a switching arrangement (). The switching arrangement comprises an input which is connected to a respective data line () and an output which is connected to a first terminal of the associated electroactive polymer actuator (), wherein a second terminal of each electroactive polymer actuator is connected to a control line (). A driver provides drive signals which comprise at least first and second drive levels for application to the data lines and third and fourth drive levels for application to the control line. Use is made of of common electrode driving (i.e. the control line driving) to enable low transistor control voltages to be used to switch larger voltages across the electroactive polymer actuators.