Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2004-11-13
2009-11-03
Tran, Henry N (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S600000
Reexamination Certificate
active
07612787
ABSTRACT:
The invention concerns a display (1) afflicted with wear, and to a method for operating a display (1) of this type. In conjunction with the problems associated with the burning in of non-moving images or image elements in wear-afflicted displays, particularly plasma displays, and with the problems associated with the wear-characteristics, which differ in the individual primary colors red, green and blue, of the phosphorous cells of a display (1) of this type whereby resulting in a shift in the color temperature of the image reproduction, the invention provides that the latest pixel wear values (R*, G*, B*) are written into a memory element (3), whereby pixel correction values are determined by means of a logic element (2), which is assigned to this memory element (3), and corrected pixel values R′, G′, B′ are generated from these pixel correction values and are applied to the display (1) for homogenizing the individual pixel wear values. According to the invention, a two-stage memory element having a volatile and a non-volatile memory (5and6) is used that stores the enormous volumes of data resulting from this context. The inventive solution also works with at least two temporally decoupled cycles for determining the pixel wear values and for determining the pixel correction values.
REFERENCES:
patent: 5821917 (1998-10-01), Cappels et al.
patent: 6501230 (2002-12-01), Feldman
patent: 6911781 (2005-06-01), Yamazaki et al.
patent: 7456827 (2008-11-01), Rosmalen
patent: 2002/0033783 (2002-03-01), Koyama
patent: 2003/0011539 (2003-01-01), Kubota
patent: 2003/0063053 (2003-04-01), Yamazaki
patent: 2003/0071804 (2003-04-01), Yamazaki et al.
patent: 100 10 964 (2000-03-01), None
patent: 101 13 248 (2002-10-01), None
patent: 0 661 726 (1995-07-01), None
patent: 0 702 347 (1996-03-01), None
patent: 0 755 042 (1997-01-01), None
patent: 1 376 520 (2004-01-01), None
patent: 2002-006796 (2002-01-01), None
Harness & Dickey & Pierce P.L.C.
Ingenieurbuero Kienhoefer GmbH
Leiby Christopher E
Tran Henry N
LandOfFree
Method and device for operating a display afflicted with wear does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for operating a display afflicted with wear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for operating a display afflicted with wear will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4055209