Manufacture of electroluminescent display devices

Details Manufacture of electroluminescent display devices Manufacture of electroluminescent display devices

1977-09-28

1980-01-08

Tupman, W. C.

Metal working

Method of mechanical manufacture

Assembling or joining

29580, 29583, 357 45, B01J 1700

Patent

active

041820258

ABSTRACT:
In the manufacture of a monolithic light-emitting diode array, electrical isolation between the n-type regions of portions of the array, for example the columns of a matrix array, is effected by mechanically cutting channels between the portions, through the n-type region and the common electrode. This method of forming the isolation channels makes it possible to produce much narrower channels than can be achieved by chemical etching, thus providing a high resolution array.

REFERENCES:
patent: 3555365 (1971-01-01), Forlani
patent: 3673016 (1972-06-01), Gerstner
patent: 3781975 (1974-01-01), Ressel
patent: 3918150 (1975-11-01), Gantley

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