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:
Sep. 01, 2009
Filed:
Apr. 18, 2005
Katsunori Yamazaki, Matsumoto, JP;
Shoichi Iino, Nirasaki, JP;
Katsunori Yamazaki, Matsumoto, JP;
Shoichi Iino, Nirasaki, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A method of driving a pixel circuit, which has a driving transistor for making a current according to a gate voltage flow into a driven element, a resistive element electrically connected in series to the driven element, and a switching transistor provided between the gate of the driving transistor and a data line to be turned on/off, includes first turning on the switching transistor and applying a voltage according to a target current flowing into the driven element to the data line, second turning off the switching transistor, third turning on the switching transistor and applying an added voltage obtained by adding a voltage across the resistive element to the voltage according to the target current to the data line, and fourth turning off the switching transistor and reducing the gate voltage of the driving transistor by the voltage across the resistive element in the third turning on.