Flat display device and method of driving same

Details Flat display device and method of driving same Flat display device and method of driving same

1996-04-25

1998-04-28

Pascal, Robert

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151693, 345 74, 345208, G09G 310

Patent

active

057449147

ABSTRACT:
A flat display device having microcathodes where the selected pixel is turned ON and OFF by a high frequency which can reduce the amplitude between ON voltage and OFF voltage and reduce the power consumption and a driving method thereof. The device has microcathodes arranged in the form of a matrix; gate electrodes controlled so that electrons are selectively discharged from the microcathodes; emitter electrodes for supplying a negative voltage to the gate electrodes of one or more selected microcathodes; a DC voltage supplying unit for supplying a DC bias voltage giving an emission current of a predetermined value or less between the emitter electrode and gate electrode irrespective of selection and non-selection; and a selective voltage supplying unit which supplies a voltage to an extent where the electrons are emitted from the microcathodes between the emitter electrode and the gate electrode of the selected microcathodes while being superimposed on the DC bias voltage.

REFERENCES:
patent: 5572231 (1996-11-01), Kobori

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