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:
Jan. 26, 2010
Filed:
Feb. 15, 2006
Hiroyuki Hara, Chino, JP;
Rie Makiura, Suwa, JP;
Hiroyuki Hara, Chino, JP;
Rie Makiura, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An organic electro-luminescence (EL) device including at least an emission layer between an anode and a cathode that are opposed to each other, including an anode buffer layer that is composed of an electrically conductive material and is provided between the anode and the emission layer, a cathode buffer layer that is composed of an electrically conductive material and is provided between the cathode and the emission layer, and a drive unit that applies a forward bias voltage and a reverse bias voltage that have opposite polarities to the anode and the cathode with setting application time periods of the forward bias voltage and the reverse bias voltage according to a luminance ratio of an image to be displayed.