Matrix type liquid crystal display with faculties of providing a

Details Matrix type liquid crystal display with faculties of providing a Matrix type liquid crystal display with faculties of providing a

1978-10-17

1982-11-16

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340784, 340812, 350333, G09G 336

Patent

active

043597297

ABSTRACT:
The disclosure is directed toward an XY matrix type liquid crystal. In the case where more than one kind of display pattern are to be displayed using substantially the same line or lines (a column or columns for a column sequential drive method), only line (or column) electrodes associated with a predetermined display are supplied with a voltage. The period of time where a voltage is applied per line or per column (that is, duty factor) is switched in accordance with a display pattern which is about to be displayed.

REFERENCES:
patent: 3776615 (1973-12-01), Tsukamoto et al.
patent: 3883778 (1975-05-01), Kaji et al.
patent: 3922667 (1975-11-01), Ueda et al.
patent: 3955187 (1976-05-01), Bigelow
patent: 3975726 (1976-08-01), Kawakami
patent: 4044346 (1977-08-01), Akahane et al.
patent: 4163230 (1979-07-01), Konii

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