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:
Jun. 04, 2013
Filed:
Feb. 03, 2011
Applicants:
Makoto Kohno, Tokyo, JP;
Nobuyuki Mori, Tokyo, JP;
Seiichi Mizukoshi, Tokyo, JP;
Inventors:
Assignee:
Global OLED Technology LLC, Herndon, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Display unevenness is suppressed. A display device includes pixels () arranged in matrix, each including a current-driven type light emitting element (EL) and a drive transistor (Tr) for supplying a current to the current-driven type light emitting element (EL). The current-driven type light emitting element (EL) is driven by dividing each frame period into a plurality of sub-frame periods for lighting time. The drive transistor is controlled under current write driving using two write currents having a ratio of 1:1/2and a sum of the two write currents.