Scanning driver circuit for ferroelectric liquid crystal device

Details Scanning driver circuit for ferroelectric liquid crystal device Scanning driver circuit for ferroelectric liquid crystal device

1989-06-27

1990-06-05

James, Andrew J.

Communications: electrical

Land vehicle alarms or indicators

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

350350S, 340805, G02F 113, G09G 336

Patent

active

049308750

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.

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A. I. Lakatos--"Promise and Challenge of TFSi Approaches to Active Matrix", pp. 185-192--Proceedings of the SID--vol. 24/2, 1983.
D. J. Barclay--"Direct View Matrix-Addressable Displays Employing IC Drivers'", pp. 2688-2690--IBM Technical Disclosure Bulletin--vol. 27, No. 4B--1984.

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