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:
Feb. 06, 2007
Filed:
Mar. 19, 2004
Kazumasa Hasegawa, Nagano-ken, JP;
Tatsuya Shimoda, Nagano-ken, JP;
Kazumasa Hasegawa, Nagano-ken, JP;
Tatsuya Shimoda, Nagano-ken, JP;
Seiko Epson Corporation, , JP;
Abstract
A first electrode layer, a first piezoelectric film layer, a second electrode layer, a second piezoelectric film layer, and a third electrode layerare layered in that order on a substrate; these are constrained so as pot to expand or contract in a thickness direction and a piezoelectric transducer is constructed thereby. A plurality of gate linesand, a plurality of data linesandintersecting with the gate lines, and thin film transistorsand, disposed at the intersections of the abovementioned gate lines and data lines, are established; one source-drain of the abovementioned thin film transistors is connected to the abovementioned data lines; another source-drain of the abovementioned thin film transistors is connected to the input sides of the abovementioned thin film piezoelectric transducersthrough; the output sides of the abovementioned thin film piezoelectric transducers are connected to the electrodes of electrophoretic ink display elements; and an electrophoretic ink display apparatus is constructed thereby.