Thin-film EL display panel drive

Details Thin-film EL display panel drive Thin-film EL display panel drive

1988-08-08

1990-06-19

Griffin, Robert L.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

3151692, 340781, 34082581, H01J 1914

Patent

active

049356712

ABSTRACT:
When driving a thin-film EL display panel having groups of two electrodes on opposing sides of a thin-film EL layer, a voltage is applied so that the polarity of the AC pulse applied to the intersection (picture element) of opposing electrodes is the reverse of the polarity of the AC pulse applied simultaneously or nearly simultaneously to adjacent or nearly adjacent picture elements. This drive method avoids flicker caused by differing luminance intensities resulting from alternating polarity in EL matrix-type displays.

REFERENCES:
patent: 3885196 (1975-05-01), Fischer
patent: 4032818 (1977-06-01), Chan
patent: 4338598 (1982-07-01), Ohba et al.
patent: 4367468 (1983-01-01), Curry
patent: 4485379 (1984-11-01), Kinoshita et al.

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