Electro-optical display device

Details Electro-optical display device Electro-optical display device

1995-11-17

1997-09-16

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 87, 345 94, G09G 318

Patent

active

056685670

ABSTRACT:
An electro-optical display device in accordance with the present invention has a plurality of picture elements arranged in a matrix form, and each of the picture elements is composed of an electro-optical material layer and a switching element which is electrically connected to the material layer in a series form. A data voltage is written on the electro-optical material layer via the switching element for a writing period. A reference voltage is applied to the other end of a connection to which the data voltage is applied, and the reference voltage is inverted alternately together with the data voltage for each predetermined period, by which the electro-optical material layer is ac driven. The value of the data voltage is controlled to coincide approximately with that of the reference voltage for the periods other than the writing period.

REFERENCES:
patent: 4896149 (1990-01-01), Buzak et al.
patent: 4945352 (1990-07-01), Ejiri
patent: 5077553 (1991-12-01), Buzak
patent: 5272472 (1993-12-01), Buzak
patent: 5349454 (1994-09-01), Iwama
patent: 5525862 (1996-06-01), Miyazaki

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