Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-11-14
1997-06-10
Hjerpe, Richard
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 94, 345100, G09G 336
Patent
active
056380887
ABSTRACT:
A liquid crystal (LC) display apparatus using an active matrix driving method includes an LC panel having electrodes of N rows by M columns (where N.gtoreq.2, M.gtoreq.2). Intersections of row electrodes and column electrodes form display dots. A column data generation circuit generates, for each row, column data to be supplied to the LC panel, on the basis of display data representing whether each dot should be turned on or not and values of an orthogonal function having values of -1 or 1. A column electrode driver drives column electrodes of the LC panel on the basis of generated column data. A row data generation circuit generates row data for each column on the basis of a part of values of the orthogonal function. A row electrode driver drives row electrodes of the LC panel on the basis of row data.
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Kitajima Masaaki
Mano Hiroyuki
Nishitani Shigeyuki
Tanaka Toshio
Chang Kent
Hitachi , Ltd.
Hjerpe Richard
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