Compositions – Organic luminescent material containing compositions
Reexamination Certificate
2006-11-13
2010-06-22
Koslow, C. Melissa (Department: 1793)
Compositions
Organic luminescent material containing compositions
C428S917000, C428S690000
Reexamination Certificate
active
07740771
ABSTRACT:
Organic white-light-emitting blend materials were prepared by light-doping method and electroluminescent devices fabricated using the same, including a transparent substance, translucent electrode, white-light-emitting layer and metal electrode in order, can efficiently control Förster energy transfer in organic light-emitting materials by performing light doping, thus to fabricate a white electroluminescent device using the blend materials which can emit white-light with high efficiency. The white-light-emitting blend materials can be obtained by the light-doping method, in which the energy transfer occurs only between a host which is a donor and each dopant which is an acceptor, while the energy transfers between dopants are efficiently blocked.
REFERENCES:
patent: 5281489 (1994-01-01), Mori et al.
patent: 5283132 (1994-02-01), Ogura et al.
patent: 5683823 (1997-11-01), Shi et al.
patent: 6127693 (2000-10-01), Chen et al.
patent: 6194119 (2001-02-01), Wolk et al.
patent: 9063770 (1997-07-01), None
patent: 2000-243565 (2000-09-01), None
R.S. Deshpande et al., “White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer”, Applied Physics Letters, vol. 75, No. 7, Aug. 1999, pp. 888-890.
Magnus Granstrom, et al., “White light emission from a polymer blend light emitting diode”, Appl. Phys. Lett, 68(2), Jan. 1996, pp. 147-149.
J. Kido et al., Single-layer white light-emitting organic electroluminescent devices based on dye-dispersed poly(N-vinylcarbazole), Appl. Phys. Lett. 67(16), Oct. 1995, pp. 2281-2283.
Junji Kido, et al., “Multilayer White Light-Emitting Organic Electoluminescent Device”, Science vol. 267, Mar. 1995, pp. 1332-1334.
Zhiyuan Xie, et al., “Organic multiple-quantum well white electroluminescent devices”, Synthetic Metals, 106 (1999) 71-74.
Th. Forster, “Transfer Mechanisms of Electronic Excitation”, Faraday Discuss. Chem. Socc. vol. 27, No. 7 (1969).
Young Chul Kim, et al., “Low-Threshold Amplified Spontaneous Emission in a Fluorene-Based Liquid Crystalline Polymer Blend”, Advanced materials, vol. 13, No. 9, May 2001, pp. 646-649.
JPO abstract and computer-generated translation for JP 2000-243565, publication date Sep. 8, 2000.
Article: Organic Electroluminescence Materials and Displays; Supervisor: Junji Kido; Title page and 254-257, 400; 2001.
Cho Hyun-Nam
Kim Jai-Kyeong
Kim Young-Chul
Lee Tae-Woo
Park O-Ok
Fish & Richardson P.C.
Korea Institute of Science and Technology
Koslow C. Melissa
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