Organoelectroluminescence device material and organoelectrolumin

Details Organoelectroluminescence device material and organoelectrolumin Organoelectroluminescence device material and organoelectrolumin

1996-07-31

1999-12-14

Tucker, Philip

Compositions

Light transmission modifying compositions

Modification caused by energy other than light

428690, 428917, 556 32, G02F 100, B32B 900, C07F 1500

Patent

active

060012846

ABSTRACT:
An organic EL device which is excellent in stability in the repetitive operation and has a high light emission brightness can be obtained from a gallium complex of the general formula (1), ##STR1## wherein each of Q.sup.1 and Q.sup.2 is independently a ligand of the general formula (2); and L is a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic ring group, --OR.sup.1 in which R.sup.1 is a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic ring group, or --O--Ga--Q.sup.3 (Q.sup.4) in which Q.sup.3 and Q.sup.4 have the same meanings as those of Q.sup.1 and Q.sup.2, ##STR2## wherein A.sup.1 and A.sup.2 are substituted or unsubstituted six-membered aryl rings which are mutually fused to form a fused ring moiety.

REFERENCES:
patent: 5294869 (1994-03-01), Tang et al.
patent: 5405709 (1995-04-01), Littman et al.
patent: 5456988 (1995-10-01), Sano et al.
patent: 5712051 (1998-01-01), Sugiura et al.
Burrows et al., Applied Physics Letters, vol. 64, No. 20, May 16, (1994), pp. 2718-2720.
Sapochak et al., Polym. Mater. Sci. Eng. (1995) vol. 72, pp. 331-332.

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