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. 20, 2015
Filed:
Feb. 03, 2012
Kongning LI, Toronto, CA;
Vasudha Gupta, Cupertino, CA (US);
Gholamreza Chaji, Waterloo, CA;
Arokia Nathan, Cambridge, GB;
Kongning Li, Toronto, CA;
Vasudha Gupta, Cupertino, CA (US);
Gholamreza Chaji, Waterloo, CA;
Arokia Nathan, Cambridge, GB;
Ignis Innovation Inc., Waterloo, Ontario, CA;
Abstract
Raw grayscale image data, representing images to be displayed in successive frames, is used to drive a display having pixels that include a drive transistor and an organic light emitting device by dividing each frame into at least first and second-frames, and supplying each pixel with a drive current that is higher in the first sub-frame than in the second sub-frame for raw grayscale values in a first preselected range, and higher in the second sub-frame than in the first sub-frame for raw grayscale values in a second preselected range. The display may be an active matrix display, such as an AMOLED display.