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:
Jul. 13, 2021
Filed:
Oct. 25, 2019
Applicant:
Ignis Innovation Inc., Waterloo, CA;
Inventors:
Raymond Leerentveld, Palgrave, CA;
Joe Acchione, Caledon, CA;
Assignee:
Ignis Innovation Inc., Waterloo, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 5/00 (2006.01); G06F 3/038 (2013.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 5/10 (2013.01); G09G 3/3233 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0285 (2013.01); G09G 2320/041 (2013.01); G09G 2320/045 (2013.01);
Abstract
Systems and methods for correcting non-uniformity and for compensating for display OLED degradation utilize a correction factors k for each pixel, which is modelled and tracked based on grey level and a pixel parameter, such as temperature and time. The correction factor k is used to correct image data provided to an OLED display. To improve display uniformity for active matrix organic light emitting diode devices (AMOLED) and other emissive displays the panel luminance is a based on operating temperature, whereby the aging effect on a compensation parameter is independent of temperature.