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:
Apr. 22, 2003
Filed:
Sep. 01, 2000
Brian P. Dehmlow, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A method of compensating for differential aging of independent emitters in a display is disclosed. According to the method, an image on the display is periodically sampled to determine how often each independent emitter is used. A history is compiled of the use of each independent emitter for a predetermined time. The amount of luminance decay that each independent emitter has experienced over the predetermined time is estimated. The maximum luminance of each independent emitter is adjusted so that the maximum luminances of all of the independent emitters is substantially the same as the maximum luminance of the independent emitter that has experienced the most decay.