Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1991-09-10
1994-05-17
Weldon, Ulysses
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345210, G09G 300
Patent
active
053131967
ABSTRACT:
When performing gradation display by giving digital value as display data to each pixel arranged in a matrix on a display panel and emitting the pixels at a brightness corresponding to the magnitude of the digital value, plural display frame periods are set as one cycle, and digital value .alpha. is given as display data in certain display frames selectively determined in the cycle, and digital value .beta.=.alpha..+-.M (M being a positive Integer) is given as display data in, other display frames in the same cycle. Accordingly, a halftone gradation between the gradation corresponding to the digital value .alpha. and the gradation corresponding to the digital value .beta. may be displayed in plural degrees depending on the rate of the number of display frames given the digital value .alpha. and the number of display frames given the digital value .beta..
REFERENCES:
patent: 4779083 (1988-10-01), Ishii et al.
patent: 4956638 (1990-09-01), Larky et al.
patent: 5023603 (1991-06-01), Wakimoto et al.
Nakanishi Kaoru
Tanaka Hiroshi
Conlin David G.
Luu Matthew
Neuner George W.
Sharp Kabushiki Kaisha
Weldon Ulysses
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