Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1987-03-25
1988-05-31
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358241, 340784, H04N 570, H04N 314
Patent
active
047485108
ABSTRACT:
A liquid crystal display device includes a liquid crystal display, which has a plurality of liquid crystal elements arranged in a matrix and has signal electrodes and scanning electrodes provided with respect to the liquid crystal elements. A signal electrode driver, for driving the signal electrodes of the liquid crystal display, has a driver and a switch circuit. This switch circuit comprises groups of switches connected in multi-stages in the column direction. Each switching stage includes a plurality of switches, the number of which increases from one stage to another toward the final stage. The switches of the first switching stage have their input terminals supplied with video signals, respectively. The output terminal of each switch of one switching stage is branched and coupled to the input terminals of associated switches of the succeeding stage. The output terminals of the switches of the last switching stage are respectively coupled to the signal electrodes. The actuation of the switches of each switching stage is controlled by a driver such that they are sequentially activated one at a time.
REFERENCES:
patent: 4427978 (1984-01-01), Williams
patent: 4630122 (1986-12-01), Morokawa
patent: 4635127 (1987-01-01), Togashi
A Pocketable Liquid Crystal Television Receiver, by Kokado, et al., IEEE Transactions on Consumer Electronics, vol. Ce-27, No. 3, Aug. 1981; pp. 462-469.
Nikkei Electronics (9-10, 1984; pp. 233-236).
Chin Tommy P.
Kabushiki Kaisha Toshiba
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