Organic electroluminescent element

Details Organic electroluminescent element Organic electroluminescent element

1996-07-30

1998-09-29

Cooney, Jr., John M.

Stock material or miscellaneous articles

Composite

Of inorganic material

313504, 313506, 313509, 313511, 428917, B32B 902

Patent

active

058144170

ABSTRACT:
An organic electroluminescent element comprises; a transparent substrate; an anode formed on the substrate; an emitting functional layer made of an organic material formed on the anode; and a cathode disposed on the emitting functional layer with a predetermined shape to be formed by a laser-material-processing; characterized in that a laser protective layer of a heat-resistant thin film is disposed on at least a portion to be provided with the laser-material-processing between the emitting functional layer and the anode; and alternatively or additionally in that a laser absorbing layer of a thin film with a predetermined thickness having a reflectance lower than that of the cathode with respect to a predetermined wavelength of the laser beam is formed on the cathode at a portion to be provided with the laser-material-processing.

REFERENCES:
patent: 4909895 (1990-03-01), Cusano
patent: 5332946 (1994-07-01), Eckersley et al.
Patent Abstracts of Japan, vol. 017, No. 257 (E-1368), May 20, 1993 & JP 05 003077 A (Pioneer Electron Corp), Jan. 8, 1993, *Abstract.
Patent Abstracts of Japan, vol. 017, No. 257 (E-1368), May 20, 1994 & JP 05 003076 A (Pioneer Electron Corp), Jan. 8, 1993, *Abstract.

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