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:
Nov. 08, 2005
Filed:
Oct. 15, 2003
Jun Maede, Kyoto, JP;
Shinichi Abe, Kyoto, JP;
Akio Fujikawa, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
Determination means determines for every column pin whether or not display data of a current horizontal scan period (display time period) is the same as that of a next horizontal scan line (display time period). When the display data for one horizontal line are identical, an anode of an OEL element is connected to this terminal pin and then the drive current of the OEL element having a cathode to be scanned next in the vertical direction becomes substantially the same. Then, when a next vertical line is scanned for the column pin having display data, which is determined as identical, the resetting of the OEL element is inhibited by the reset inhibit circuit and the generation of peak current in a next horizontal scan period (display time period D) is stopped.