Circuit and method for driving a thin-film EL panel

Details Circuit and method for driving a thin-film EL panel Circuit and method for driving a thin-film EL panel

1982-02-10

1984-11-27

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340805, 34082581, G09G 330

Patent

active

044853793

ABSTRACT:
An EL panel including an array of scan electrodes, an array of data electrodes crossing the scan electrodes and a plurality of pixels each lying sandwiched between a respective one of the scan electrodes and a respective one of data electrodes is driven by a circuit for applying sequentially a write pulse voltage to the scan electrodes in a line scanning fashion and a circuit for applying a refresh pulse voltage of a polarity opposite to that of the write pulse voltage throughout the panel upon completion of field scanning. The system further includes a circuit for applying throughout the display panel upon completion of field scanning a write compensation pulse of the same polarity as that of the refresh pulse voltage and an amplitude insufficient to cause electroluminescence, and a refresh compensation pulse of a polarity opposite to that of the refresh pulse and an amplitude not enough to cause electroluminescence. Preferably, the values of the write compensation pulse and the refresh compensation pulse depend on factors of an equivalent circuit of the EL panel.

REFERENCES:
patent: 3975661 (1976-08-01), Kanatani et al.
patent: 4152626 (1979-05-01), Hatta et al.
patent: 4237456 (1980-12-01), Kanatani
patent: 4301451 (1981-11-01), Barta
patent: 4338598 (1982-07-01), Ohba et al.

Affiliated with

Also associated with

Rating

Circuit and method for driving a thin-film EL panel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for driving a thin-film EL panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for driving a thin-film EL panel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2136746