Television – Cathode-ray tube burn-in prevention
Reexamination Certificate
2008-07-15
2008-07-15
Lee, M. (Department: 2622)
Television
Cathode-ray tube burn-in prevention
C348S556000, C348S801000
Reexamination Certificate
active
07400345
ABSTRACT:
A method for uniformly aging an OLED display device, the OLED display device including a display screen with a screen aspect ratio, the method comprising: receiving a first external video signal having a first signal aspect ratio different from the screen aspect ratio; illuminating a primary region of the OLED display in response to the first external video signal, whereby a secondary region of the OLED display is not illuminated in response to the first external video signal; receiving a second external video signal having a second signal aspect ratio different from the first external video signal aspect ratio, wherein the display area corresponding to the second signal aspect ratio includes at least a portion of each of the primary and of the secondary regions of the OLED display; generating a regional correction value corresponding to the primary and secondary regions of the OLED display; employing the regional correction value to correct the second external video signal to compensate for differential aging in the included portions of the primary and secondary regions of the OLED display resulting from differential illumination of the primary and secondary regions of the OLED display in response to the first external video signal; and illuminating the OLED display in response to the corrected second external video signal.
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Anderson Andrew J.
Eastman Kodak Company
Lee M.
Shaw Stephen H.
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