Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1988-08-30
1990-05-29
Miller, Stanley D.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
350350S, 340784, G02F 113, G09G 336
Patent
active
049290584
ABSTRACT:
A driving method for a display device is disclosed. The display device includes column electrodes and row electrodes, both laid in a matrix of columns and rows, and a display picture element disposed at each intersection between the column and row electrodes and adapted to be selectively set in one of bright an dark memory states. The driving method includes the steps of dividing the column electrodes into K groups of column electrodes; defining the number Z of column electrode lines constituting each group of the column electrodes rendering one frame period; selecting a predetermined one of the K groups of the column electrodes for a time width ZT.sub.0 of each of the blocks so that each picture element in the selected one of the groups of the column electrodes can be set in one of the bright and dark memory states; and selecting a number of times, not smaller than n, the K groups of the column electrodes, during each one-frame period T.sub.F, will operate according to a predetermined sequence.
REFERENCES:
patent: 4508429 (1985-04-01), Nagae et al.
patent: 4709995 (1987-12-01), Kuribayashi
Mai Huy K.
Miller Stanley D.
Sharp Kabushiki Kaisha
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