Image display method and device

Details Image display method and device Image display method and device

1997-09-08

1999-12-28

Wu, Xiao

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345127, 345212, G09G 336

Patent

active

060087897

ABSTRACT:
A method of displaying an image on a display screen and a image display device are described. The display device includes a display screen, horizontal and vertical scanning circuits, and a control circuit. The display screen has a predetermined aspect ratio of its lateral axis length and its longitudinal axis length. The horizontal scanning circuits derive signal voltages from a video signal in accordance with a clock signal and provide the same to pixels of horizontal pixel lines. The vertical scanning circuits select the horizontal pixel lines. The control circuit includes a divider circuit to divide a reference clock signal by first and second dividing ratios, and a switching circuit to select either a combination of the reference clock signal and an output signal of the divider circuit by the first dividing ratio or an output of the divider circuit divided by the second dividing ratio so that it may supply the clock signal to the horizontal scanning circuit.

REFERENCES:
patent: 5471251 (1995-11-01), Inaba et al.
patent: 5600347 (1997-02-01), Thompson et al.
patent: 5619225 (1997-04-01), Hashimoto
patent: 5764297 (1998-06-01), Sengoku

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