Animated dithered display system

Details Animated dithered display system Animated dithered display system

G - Physics

06

F

375/53, 350/56,

G06F 3/14 (2006.01) G09G 3/00 (2006.01) H04N 5/70 (2006.01)

Patent

CA 1055627

ANIMATED DITHERED DISPLAY SYSTEMS Abstract of the Disclosure Dithered display systems are adapted to present animated images via a conditional replenishment technique. The only cells of the display panel which are accessed for any given frame are cells which are to have states in that frame which differ from their respective states in the previous frame. Additionally, random scintillations in animated dithered displays are substantially eliminated by establishing a hysteresis band about the dither threshold value assigned to each display cell. The hysteresis band is delimited by upper and lower dither threshold values. Determination of whether the intensity of a given picture element of the image to be displayed is to be compared to the upper or the lower dither threshold value assigned to the corresponding display cell is made based on the current state of the cell.

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