Organic electroluminescent light emitting device comprising an a

Details Organic electroluminescent light emitting device comprising an a Organic electroluminescent light emitting device comprising an a

1997-11-28

1999-09-14

O'Shea, Sandra

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, H01J 162

Patent

active

059527790

ABSTRACT:
An organic EL light emitting device with some contrast improvement is provided at low cost yet with no provision of an antireflection coating film. The device comprises a transparent substrate, and an anode, a light emitting layer and a cathode formed thereon in the described order. The anode contains indium oxide doped with tin and/or zinc, and iron in such a way as to have a light transmittance of 30 to 70% in a light emitting wavelength range.

REFERENCES:
patent: 5059861 (1991-10-01), Littman et al.
patent: 5104746 (1992-04-01), Sato et al.
patent: 5200668 (1993-04-01), Ohashi et al.
patent: 5314775 (1994-05-01), Ueda
Patent Abstracts of Japan, vol. 096, No. 011, Nov. 29, 1996, and JP 08 185979, Jul. 16, 1996.
Patent Abstracts of Japan, vol. 017, No. 180 (C-1046), Apr. 8, 1993, and JP 04 335087, Nov. 24, 1992.
Patent Abstracts of Japan, vol. 095, No. 11, Dec. 26, 1995, and JP 07 201467, Aug. 4, 1995.

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