Display device driving circuit

Details Display device driving circuit Display device driving circuit

1990-04-13

1992-05-19

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

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

340805, 340811, 358148, G09G 336, H04N 504

Patent

active

051152320

ABSTRACT:
A display device driving circuit for converting a binary display data into an AC signal having no DC component and supplying the AC signal to a display device including, a synchronizing circuit for receiving the display data, a binary modulating signal and a clock signal and for synchronizing the display data and the modulating signal with the clock signal, a decoder connected to the synchronizing circuit for generating a signal having a logic level corresponding to logic levels of the synchronized display data and modulating signal, and a power supply circuit connected to the decoder for outputting a voltage having an amplitude corresponding to the logic level of the signal received from the decoder to the display device.

REFERENCES:
patent: 4393379 (1983-07-01), Berting et al.
patent: 4393380 (1983-07-01), Hosokawa et al.
patent: 4427978 (1984-01-01), Williams
patent: 4525710 (1985-06-01), Hoshi et al.
patent: 4556880 (1985-12-01), Hamada
patent: 4775891 (1988-10-01), Aoki et al.

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