Driving apparatus

Details Driving apparatus Driving apparatus

1989-11-28

1991-07-23

Weldon, Ulysses

Communications: electrical

Land vehicle alarms or indicators

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

340765, 340805, 340811, 350332, 350333, G09G 336

Patent

active

050347357

ABSTRACT:
A driving apparatus includes a scanning driver circuit connected to scanning electrodes and a signal driver circuit connected to signal electrodes. The scanning driver circuit includes: (1) a drive signal voltage generating unit which includes a first signal voltage generating unit for generating a scanning selection signal voltage supplied to a first bus, and a second signal voltage generating unit for generating a scanning nonselection signal voltage supplied to a second bus, (2) a switching circuit unit for selectively supplying the scanning selection signal or the scanning nonselection signal to a scanning electrode, and (3) a switching signal generating unit for supplying a switching control signal to the switching circuit unit.

REFERENCES:
patent: 4380008 (1983-04-01), Kawakami et al.
patent: 4714921 (1987-12-01), Kanno et al.
patent: 4716403 (1987-12-01), Morozumi
patent: 4816819 (1989-03-01), Enai et al.
patent: 4930875 (1990-06-01), Inoue et al.

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