Polymeric fluorescent substance and polymer light-emitting...

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition

Reexamination Certificate

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C428S001300, C428S001330, C428S461000, C428S462000

Reexamination Certificate

active

07396571

ABSTRACT:
Provided is a polymeric fluorescent substance showing fluorescence in solid state, which has a specific carrier drift mobility, a specific repeating unit, and specific number-average molecular weight. The polymeric fluorescent substance is excellent in solubility to organic solvents, and has higher efficiency and longer lifetime in applying as a polymer LED.

REFERENCES:
patent: 5247190 (1993-09-01), Friend et al.
patent: 5254633 (1993-10-01), Han
patent: 5731599 (1998-03-01), Hwang et al.
patent: 5777070 (1998-07-01), Inbasekaran
patent: 5807974 (1998-09-01), Kim et al.
patent: 5883684 (1999-03-01), Millikan et al.
patent: 5909038 (1999-06-01), Hwang et al.
patent: 5945502 (1999-08-01), Hsich et al.
patent: 19505416 (1996-08-01), None
patent: 0 637 621 (1995-02-01), None
patent: 0672741 (1995-09-01), None
patent: 0725120 (1996-08-01), None
patent: 0786924 (1997-07-01), None
patent: 0825242 (1998-02-01), None
patent: 0964045 (1999-12-01), None
patent: 6-36877 (1994-02-01), None
patent: WO 94/20589 (1994-09-01), None
patent: WO 96/29356 (1996-09-01), None
patent: WO 99/20711 (1999-04-01), None
patent: WO 00/46321 (2000-08-01), None
Patent Abstract of Japan vol. 1999, No. 3, Mar. 31, 1999; JP 10 324870A (Sumitomo Chem. Co. Ltd.), Dec. 8, 1998 Abstract.
Patent Abstract of Japan vol. 16, No. 33 (C-0905), Jan. 28, 1992, JP 03 244630A (Sumitomo Chem. Co. Ltd.) Oct. 31, 1991., Abstract.
Patent Abstract of Japan, vol. 14. No. 509 (C-0776), & JP 02 209988A (Idemitsu Kosan Co. Ltd.), Aug. 21, 1990, Abstract.
Yamamoto , T. et al. “Preparation and Properties of PI-Conjugated Poly(benzimidazole-4,7-diyl)” Macromolecular Chemistry and Physics, Wiley VCH, Weinheim, DE , vol. 199, No. 9, Sep. 1998 pp. 1807-1813; XP000785721 ISSN: 1022-1352.
Peng Z. et al. “Oxadiazole-containing conjugated polymers for light-emitting diodes” Advanced Materials, VCH Verlagsgesellschaft, Weinheim, DE, vol. 10, No. 9, Jun. 18, 1998 pp. 680-684, XP000774672 ISSN: 0935-9648.
Yamamoto, T. et al., “Polymer light-emitting diodes with single-and double-layer structures using poly(2,3-diphenylquinoxaline-5,8-diyl)” Japanese Journal of Applied Physics, Publication Office Japanese Journal of Applied Physics, Tokyo, JP, vol. 33, No. 2B Part 2, Feb. 15, 1994, pp. L250-L253, XP000595019 ISSN: 0021-4922.
Janietz, S. et al. “Synthesis of New Thianthrene containing polymers and aromatic poly(oxadiazoles) and their application in OLEDS” Polymer preprints, American Chemical Society, U.S., vol. 40, 1999, pp. 1219-1220, XP001061912, ISSN: 0032-3934.
Yamamoto, T. et al., “Conjugated poly(pyridine-2-5-diyl), poly(2,2′-bipyridine-5-′-diyl), and their alkyl derivatives. Preparation, linear structure, function as a ligand to form their transition metal complexes, catalytic reactions, n-type electrically conducting properties, optical properties, and Alignment On substrat” Journal of American Chemical Society, American Chemical Society, Washington, D.C., US,vol. 116, 1994, pp. 4832-4845, XP002201577, ISSN: 0002-7863.
Huang, W. et al., “A new blue light-emitting polymer containing substituted thiophene and an arylene-1,3,5-oxadiazole moiety” Advance Mateirals, VCH, Verlagsgesellschaft, Weinheim, DE, vol. 10, No. 8, Jun. 2, 1998, pp. 593-596, XP000766724, ISSN 0935-9648.
Li, X. C., et al., “Synthesis, Properties, and Application of new luminescent polymers with both hole and electron injection abilities for light-emitting devices” Chemistry of Materials, American Chemical Society, Washington, D.C., US, vol. 11, No. 6, Jun. 1999, pp. 1568-1575, XP000865219, ISSN: 0897-4756.
Hwang, D. H. et al., “New Luminescent Polymers for LEDS and LECS” Macromolecular Symposia, Wiley VCH, Weinheim, DE, vol. 125, No. 125, 1997, pp. 111-120, XP000907043, ISSN: 1022-1360.
Takakazu, Yamamoto et al., “Preparation of Conjugated poly(thiophene-2,5-Diyl), poly(P-Phenylene), and related polymers using Zerovalent nickel complexes. Linear structure and perperties of the conjugated polymers” Macromolecules, American Chemical Society. Easton, NJ., US, vol. 25, No. 4, Feb. 17, 1992, pp. 1214-1223, XP000257555, ISSN: 0024-9297.
D. Hwang et al., Green light-emitting diodes from poly(2-dimethyloctylsilyl-1,4-phenylenevinylene), Chem. Commun., (1996), pp. 2241-2242.
B. Chuah et al., “New luminescent polymers for LED's”, Synthetic Metals 91, (1997), pp. 279-282 with Abstract.
D. Hwang et al., “Highly efficient green light-emitting diodes with aluminum cathode”, Synthetic Metals 84, (1997), pp. 615-618 with Abstract.

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