Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1993-11-09
1995-05-02
Hjerpe, Richard
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345102, 345148, G09G 336
Patent
active
054123968
ABSTRACT:
A flat-panel display device 500, 600 with an active array of parallel longitudinal row backlights 520, 620 disposed in a first plane is disclosed. The row backlights sequentially emit a row of light for a fixed-duration row-interval of time t in successive row periods of duration p. Each row is illuminated once in each frame. The flat panel display device also has an array of longitudinal parallel liquid-crystal column shutters 531, 631 disposed in a second plane parallel to the first plane. The column shutters are oriented orthogonally to the row backlights so as to define pixels at each intersection of a column shutter and a row backlight. A driver 590, 690 is provided for causing the column shutters to make, at most, one transition from the "off" state to the "on" state or vice-versa every row period.
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Bell Communications Research Inc.
Chang Vivian W.
Falk James W.
Hjerpe Richard
Suchyta Leonard Charles
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