Flat-panel display device

Details Flat-panel display device Flat-panel display device

1992-01-15

1994-07-12

Oberley, Alvin E.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345211, G09G 310

Patent

active

053292880

ABSTRACT:
A flat-panel display device is disclosed which comprises m column electrodes, n row electrodes, a column electrode driver for driving the m column electrodes in response to pixel data, and a row electrode driver for driving the n row electrodes by a one-line-at-a-time scanning methode, the column electrode driver comprising a detector for checking whether or not the number of turned-on column electrodes among the m column electrodes is greater than a predetermined number and an on-time varying unit for shortening the on-time of the column electrodes in response to the output of the detector. The device has an effect of reducing power consumed by varying the on-time of the electrodes when more than the predetermined number of pixels are on.

REFERENCES:
patent: 4257045 (1981-03-01), Miles
patent: 4642524 (1987-02-01), Eaton et al.
patent: 4683470 (1987-07-01), Criscimasna
patent: 4818982 (1989-04-01), Kuehn et al.
patent: 5119085 (1992-06-01), Yamazaki
patent: 5122783 (1992-06-01), Bassetti, Jr.

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