Organic red electro-luminescent device and dopant

Details Organic red electro-luminescent device and dopant Organic red electro-luminescent device and dopant

2005-01-18

2005-01-18

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C546S082000, C546S094000, C546S098000, C544S250000, C544S252000

Reexamination Certificate

active

06844089

ABSTRACT:
The invention relates to an electroluminescent device, in which the luminescent layer contains a luminescent compound and a compound of the general formula I as doping agent, wherein B is an unsaturated carbocyclic or heterocyclic 4-8-link ring, which can also contain an alicyclic bridge, the rings D and E are five- or six-link rings, which each can contain one more hetero-atom N, O and S, the radicals R are one or more substituents H or straight-chain or branched C1-C6-alkyl, X and Y are carbon or nitrogen, R1; R2and R9are H or straight-chain or branched C1-C6-alkyl, R3and R9are hydrogen, straight-chain or branched C1-C6-alkyl, hydroxy, —OR16, —COOR16, N,N-dialkylamino, acetylamino or halogen, wherein R16is hydrogen, or straight-chain or branched C1-C6-alkyl, R1and R2or R2and R3and/or R9and R9together can form an alicyclic, heterocyclic or aromatic ring, and A1and A2, which can be the same or different, are cyan, nitro or —COOR16. The compounds I are partly new. Together with the luminescent compound, the doping agents have a red or white color, depending on the concentration, with excellent quantum efficiency.

REFERENCES:
patent: 2965486 (1960-12-01), Brooker et al.
patent: 3511831 (1970-05-01), Dunbar et al.
patent: 3852683 (1974-12-01), Webster et al.
patent: 4047948 (1977-09-01), Horgan
patent: 4175960 (1979-11-01), Berwick et al.
patent: 4539507 (1985-09-01), Van Slyke et al.
patent: 4769292 (1988-09-01), Tang et al.
patent: 5061569 (1991-10-01), VanSlyke et al.
patent: 5166339 (1992-11-01), Duff et al.
patent: 5283132 (1994-02-01), Ogura et al.
patent: 5359072 (1994-10-01), Mignani et al.
patent: 5535048 (1996-07-01), Mignani et al.
patent: 5908581 (1999-06-01), Chen et al.
patent: 5935720 (1999-08-01), Chen et al.
patent: 6020078 (2000-02-01), Chen et al.
patent: 6025894 (2000-02-01), Shirasaki et al.
patent: 6329086 (2001-12-01), Shi et al.
patent: 6451456 (2002-09-01), Kim et al.
patent: 20020164498 (2002-11-01), Chen et al.
patent: 20030044644 (2003-03-01), Kim et al.
patent: 20030098861 (2003-05-01), Lee et al.
patent: 20030162054 (2003-08-01), Chen et al.
patent: 20030176520 (2003-09-01), Taniguchi et al.
patent: 23 45 189 (1975-03-01), None
patent: 28 31 054 (1979-01-01), None
patent: 689 19 989 (1995-05-01), None
patent: 195 41 113 (1997-04-01), None
patent: 0 244 051 (1987-11-01), None
Su-Jin Park et al., “A Molecular Orbital Study on the Optical Properties of Fluorescent Dyes”, Mat. Res. Soc. Symp. Proc. vol. 677, pp. AA7.4.1-AA7.4.6 (Sep. 2001).*
X. T. Tao, S. Miyata, H. Sasabe, G.J. Zhang, T. Wada, M.H. Jiang, “Efficient Organic Red Electroluminescent Device with Narrow Emission Peak,” Applied Physics Letters, vol. 78, No. 3, Jan. 15, 2001, pp. 279-281.
C.W. Tang, “Organic Electroluminescent Diodes,” Applied Physics Letters, vol. 51, No. 12, Sep. 21, 1987, pp. 913-915.
Ralf Lemke, “Knoevenagel-Kondensationen in Dimethylformamid,” International Journal of Methods in Synthetic Organic Chemistry, May 1974, pp. 359-361.
Ralf Lemke, “Solvatochromie von 80 mμ in verschiedenen Alkoholen bei Arylidenisophoron-Abkömmlingen,” Chemische Berichte Jahrg. vol. 103, Jun. 1970, pp. 1894-1899.
H. Katayama, M. Ohkoshi, “International Journal of Methods in Synthetic Organic Chemistry,” Aug. 1982, pp. 692-693.
Kari Skinnemoen, Kjell Undheim, “Synthesis of 2H-Pyran-3-(6H)-ones,” Acta Chemica Scandinavica, Series B, 1980, pp. 295-297.

Affiliated with

Also associated with

Rating

Organic red electro-luminescent device and dopant does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic red electro-luminescent device and dopant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic red electro-luminescent device and dopant will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3437626