Mitsubishi Chemical Corporation

Mitsuru Tanamura

Tomoyuki Ogata

Hideki Sato

Koichiro Iida

Yoshiharu Sato

Masayoshi Yabe

Kazuki Okabe

Hironori Ishikawa

Asato Tanaka

Yuichiro Kawamura

Hiroshi Ito

Eisuke Fujiwara

Yuichiro Mitsubishi Chemical Group Scien Kawamura

A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material E, the first reduction potential of the phosphorescent material E, the first oxidation potential of the charge transporting material E, and the first reduction potential of the charge transporting material Esatisfy the following condition: E+0.1&#x2266;E&#x3c;E&#x2266;E&#x2212;0.1 or E+0.1&#x2266;E&#x3c;E&#x2266;E&#x2212;0.1.

Organic electric field light emitting element and production therefor

A method of controlling an illumination apparatus includes a malfunction detecting step for detecting a malfunction of an organic electroluminescence element based on its electrical characteristic, a short-circuit malfunction restoration step for applying a short-circuit malfunction restoration pulse to an element that is determined to be a short-circuit malfunction, a short-circuit malfunction restoration determination step for determining whether the element that is determined to be the short-circuit malfunction is restored, a malfunctioning element determination step for storing into a storage, when an element that is determined to be the short-circuit malfunction is not restored, individual information including identification information on the element as a malfunctioning element, and a turn-on control step for controlling the turn-on state of a light-emitting surface based on a state of distribution of the malfunctioning organic electroluminescence elements.

Method of controlling illumination apparatus

The invention provides an organic electroluminescent device which is excellent in heat resistance and weather resistance, emits light at a low voltage with high brightness, maintains stable luminescence characteristics in driving, and can be produced under broad process conditions. It comprises a substrate ( ) having a luminescent layer ( ) held between an anode ( ) and a cathode ( ). The cathode ( ) comprises a metallic material, an alkali metal, and an oxygen atom. The cathode is formed by simultaneous vacuum deposition using a metallic material and an organic compound containing an alkali metal as deposition sources.

Organic electroluminescent device and process for producing the same

Organic electroluminescent device comprising a patterned photosensitive composition and a method for producing same

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Yokohama, Japan

Mitsuru Tanamura