Frishauf, Holtz, Goodman, Langer & Chick
Carrier injection type organic electro-luminescent device which emits light in response to an application of a voltage
 A carrier-injection type organic electroluminescent device includes, provided on a substrate, a transparent anode electrode, and a hole transport layer containing hole-transporting poly(N-vinylcarbazole) and 2,5-bis(1-naphthyl)-oxadiazole, and 3-(2'-benzothiazoyl)-7-diethylaminocoumarin as a fluorescent material which absorbs light within a predetermined wavelength range and emits light having a longer wavelength. Further included are an electron transport layer containing an electron-transporting tris(8-quinolinolate)aluminum complex, and a cathode electrode. When a voltage is applied between the anode and the cathode, the fluorescent material absorbs light emitted by the recombination of electrons and holes, and emits visible light. 
Casio Computer Co., Ltd.
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H05B H01L H05B
inventional inventional inventional
Norihiko Hiroyasu Tomoyuki
Kaneko Yamada Shirasaki