Organic electroluminescent device

Details Organic electroluminescent device Organic electroluminescent device

1997-07-15

2000-08-08

Yamnitzky, Marie

Stock material or miscellaneous articles

Composite

Of inorganic material

428195, 428917, 313504, 313506, 257 40, 257 88, 427 66, 427337, H05B 3314, B05D 310, B05D 506

Patent

active

060999802

ABSTRACT:
An organic electroluminescent device and a method of manufacturing such a device. By patterned exposure of an alkylatable-compound-containing organic layer of the device to an alkylating agent, a device is obtained which, in operation, exhibits patterned light emission, without it being necessary to structure the electrode layers. A salt is locally formed by means of alkylating in accordance with a pattern. If the salt contains ions which can move under the influence of an electric field, the threshold voltage necessary to produce light emission is reduced.

REFERENCES:
patent: 5444330 (1995-08-01), Leventis et al.
patent: 5677546 (1997-10-01), Yu
patent: 5682043 (1997-10-01), Pei et al.
patent: 5767624 (1998-06-01), Gordon, II et al.
Pei et al., "Polymer Light-Emitting Electrochemical Cells", Science, vol. 269, pp. 1086-1088, Aug. 25, 1995.
Netherlands Patent No. NL 1002944 (PHN 15.772), publication date not given.

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