Electroluminescent displays

Details Electroluminescent displays Electroluminescent displays

1982-07-07

1984-05-08

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With load device temperature modifier

Electric heater for the load device

315117, 3151693, H05B 3308

Patent

active

044477627

ABSTRACT:
When a display incorporating electroluminescent (EL) device is switched on, the electrical resistance across electrodes and which indicates the moisture content of the EL layer is measured by electrical resistance measuring device. If the resistance is below a preset value corresponding to an unacceptable moisture content a current pulse source is activated to heat the EL layer and evaporate the moisture. The resistance is also measured periodically during continued use of the display.

REFERENCES:
patent: 2791723 (1957-05-01), Magy et al.

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