Kyulux, Inc.

Junichi Nishide

Chihaya Adachi

Hajime Nakanotani

Hiroko Nomura

Takuma Yasuda

Kensuke Masui

Katsuyuki Shizu

Kenichi Goushi

Ryosuke Kondo

Hiroki Uoyama

An organic electroluminescent device containing a cathode, an anode, and one or more organic layers containing plural light emitting materials between the cathode and the anode, wherein the organic electroluminescent device is a multiple wavelength light emitting organic electroluminescent device emitting light from the plural light emitting materials, and which is designed so that light that has the shortest wavelength contains delayed fluorescent light can improve light emission efficiency of a short wavelength light and color tone and has a large degree of freedom in design and a simple structure.

Organic electroluminescent device comprising delayed fluorescent materials

An organic light-emitting device having a light-emitting layer containing a compound represented by the general formula below has a high light emission efficiency. In the general formula, at least one of Rto Rrepresents a cyano group, at least one of Rto Rrepresents a 9-carbazolyl group, a 1,2,3,4-tetrahydro-9-carbazolyl group, a 1-indolyl group or a diarylamino group, and the balance of Rto Rrepresents a hydrogen atom or a substituent. 

Organic light-emitting device, and light-emitting material and compound used therefor

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Fukuoka, Japan

Junichi Nishide