Tdk Corporation

Masatoshi Takizawa

Yukihiko Shirakawa

Shirou Ootsuki

Minoru Ookoba

A thin-film EL device includes a lower electrode layer, a barrier layer containing a conductive inorganic compound, a lower insulating layer, a light emitting layer, and an upper electrode layer stacked in order on an electrically insulating substrate. An EL device of high display quality is established at a low cost by acquiring satisfactory light emitting properties without using an expensive high-melting point noble metal in the lower electrode layer and without increasing the thickness of the lower electrode layer, even when the lower insulating layer contains a lead base dielectric material.

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Tokyo, Japan

Masatoshi Takizawa