Material for organoelectroluminescence device and organoelectroluminescence device using the material
AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsMichiko Tamano, Toshikazu Onikubo, Satoshi Okutsu, Toshio Enokida
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Abstract
A material for an organic EL device, having excellent capability of injecting holes from a metal electrode and having durability, and an organic EL device which is imparted with excellent stability in the repeated use for light emission by using the above material, the material having the formula (1), (6) or (7) as specified in claim 1.
Claims7
A material for an organic EL device, which has the formula (1), ##STR34## wherein each of Ar.sup.1 to Ar.sup.6 is independently a substituted or non-substituted aryl group, each of X.sup.1 to X.sup.6 is independently --(CH.sub.2).sub.x --O--(CH.sub.2).sub.y --, a substituted or non-substituted alkylene group or a substituted or non-substituted alicyclic moiety, in which each of x and y is an integer of 0 to 20, provided that x+y=0 in no case, and A is a group having one of the following formulae, ##STR35##
Dependencies are inferred from the claim text.