Image display device and method of driving the same

Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source

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345 96, G09G 336

Patent

active

054899109

ABSTRACT:
An image display device having an electro-optical medium interposed between a pair of electrode substrates composing a matrix electrode, a driving circuit for driving the electro-optical medium by selectively applying a voltage on the matrix electrode and a reference voltage generator for supplying the driving circuit with a predetermined driving voltage. A noise compensating circuit is interposed between the driving circuit and the reference voltage generator, the noise compensating circuit detecting a noise in a voltage supplied from the reference voltage generator to the electro-optical medium at a predetermined noise detecting position, forming a noise compensating voltage having a first polarity reverse to a second polarity of the noise by using the noise, and supplying the noise compensating voltage to the driving circuit.

REFERENCES:
patent: 4485380 (1984-11-01), Soneda et al.
patent: 4539527 (1985-09-01), Ishigaki et al.
patent: 4577161 (1986-03-01), Hirohashi et al.
patent: 4814722 (1989-03-01), Hartmann et al.
patent: 4999584 (1991-03-01), Eskelinen
patent: 5087890 (1992-02-01), Ishiguro et al.

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