VIOLANTHRENE COMPOUND, ISOVIOLANTHRENE COMPOUND, ORGANIC EL DEVICE, AND EL DISPLAY

摘要

An organic EL device excellent in luminous efficiency, luminance, and color purity of red light. The organic EL device is characterized in that it has an anode, a cathode, and an organic thin-film layer interposed between the anode and cathode, and in that the organic thin-film layer contains as an emitting material either a violanthrene compound expressed by structural formula (1) or an isoviolanthrene compound expressed by structural formula (2). Structural Formula (1) In structural formula (1), R<1> to R<18> can be the same or different, they denote a hydrogen atom or a substituent, and at least one of them is a group expressed by structural formula (3). Structural Formula (3) In structural formula (3), R<37> and R<38> can be the same or different, they denote a hydrogen atom, an alkyl group, or an aryl group, and R<37> and R<38> can be directly or indirectly bonded to each other. Structural formula (2) In structural formula (2), R<19> to R<36> can be the same or different, they denote a hydrogen atom or a substituent, and at least one of them is a group expressed by structural formula (3).