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:
Apr. 02, 2013
Filed:
Apr. 15, 2010
Takashi Miyazawa, Hokuto, JP;
Takashi Miyazawa, Hokuto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A unit circuit includes a capacitive element having a first electrode, a second electrode, and a dielectric layer; a transistor having a gate electrode connected to the first electrode, a first terminal, and a second terminal connected to a driven element; a first switching element controlling electrical connection between the gate electrode of the transistor and the second terminal; and a second switching element connected to the second electrode. A potential of the first electrode is set to a predetermined potential higher by a threshold voltage of the transistor than a first potential by turning on the first switching element, and the potential of the first electrode is set to the first potential by supplying a first operation signal to the second electrode through the turned-on second switching element in a state that the first electrode is electrically isolated from the predetermined potential by turning off the first switching element.