Dithering method and circuit using dithering matrix rotation

Details Dithering method and circuit using dithering matrix rotation Dithering method and circuit using dithering matrix rotation

1994-04-25

1998-02-03

Saras, Steven

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345147, G09G 510

Patent

active

057149747

ABSTRACT:
A display device with improved color and grey scale capability employs an improved time dependent dithering technique. In the display device, each pixel is controlled so as to be illuminated for only a certain number of times during a display time period, the number of illuminations during the display period being dependent on the color or grey scale value of a corresponding pixel in an original image and a dither matrix element. After each frame in the fixed time period, the dither matrix elements are circulated to a new position, thereby introducing a time factor into the dithering technique.

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