Drive system for a thin-film EL display panel

Details Drive system for a thin-film EL display panel Drive system for a thin-film EL display panel

1977-07-26

1980-12-02

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340166EL, 340781, G06F 314

Patent

active

042374561

ABSTRACT:
A drive system is provided for a thin-film EL display panel which includes an EL thin layer sandwiched between a pair of dielectric layers, a plurality of scanning line electrodes formed on one of the dielectric layers, and a plurality of data line electrodes formed on the other of the dielectric layers. The scanning line electrodes and the data line electrodes, in combination, define a matrix pattern. A selected data line is preliminarily charged to a predetermined level below the threshold level of electroluminescence. Thereafter, a selected scanning line is connected to receive a write-in pulse, of which the level is also below the threshold level of electroluminescence. A picture point at which the selected data line and the selected scanning line cross each other receives a voltage of the preliminary charge superimposed on the write-in pulse and having a value exceeding the threshold level, thereby providing electroluminescence.

REFERENCES:
patent: 2947912 (1960-08-01), Hoffman et al.
patent: 3142819 (1964-07-01), Duinker et al.
patent: 3300581 (1967-01-01), Steinmeyer
patent: 3885196 (1975-05-01), Fischer
patent: 3904924 (1975-09-01), Hilsom et al.
patent: 3922668 (1975-11-01), Kishimoto et al.
patent: 3973136 (1976-08-01), Lee
patent: 4006383 (1977-02-01), Luo et al.
patent: 4042854 (1977-08-01), Luo et al.

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