Electroluminescent device driving circuit

Details Electroluminescent device driving circuit Electroluminescent device driving circuit

1990-10-12

1992-01-07

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315246, 340781, 357 41, G09G 310, G09G 330

Patent

active

050794833

ABSTRACT:
An electroluminescent device driving circuit comprising first and second switching devices, a dividing capacitor, an electroluminescent device, and a driving power supply is described. The electroluminescent device illuminates when the second switching device is in an off-state (open). When the second switching device is in an on-state (closed), however, the electroluminescent device does not emit light. The second switching device can readily incorporate an offset drain structure.

REFERENCES:
patent: 3708717 (1973-01-01), Fleming
patent: 4006383 (1977-02-01), Luo et al.
patent: 4087792 (1978-05-01), Asars
patent: 4114070 (1978-09-01), Asars
patent: 4574315 (1986-03-01), Yoshimura
patent: 4602192 (1986-07-01), Nomura et al.

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