Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

Dai Nippon Printing Co., Ltd.

Dai Ikemizu

Tomohiro Oshiyama

Masato Nishizeki

Hiroshi Kita

Hideo Taka

Eisaku Katoh

Yasushi Okubo

Shinya Otsu

Takatugu Suzuki

Emiko Kataoka

Hiroyuki Yamashita

Tatsuo Tanaka

Kazuya Yoshida

Rie Katakura

Noriko Yasukawa

Takamune Hattori

Takayuki Iijima

Kazuhiro Oikawa

Hidekane Ozeki

One objective of the present invention is to provide a coating liquid for forming a light emitting layer, which improves quantum efficiency. Another objective of the present invention is to provide: an organic electroluminescent element which is formed by means of this coating liquid for forming a light emitting layer; a lighting device, a display device and a white electroluminescent device, each of which is provided with this organic electroluminescent element; and a method for manufacturing an organic electroluminescent element. A coating liquid for forming a light emitting layer according to the present invention is used for the purpose of forming a light emitting layer, which is one of one or more organic layers held between a positive electrode and a negative electrode, and this coating liquid for forming a light emitting layer is characterized by containing a thermally activated delayed fluorescent compound.

Coating liquid for forming light emitting layer, organic electroluminescent element, method for manufacturing organic electroluminescent element, and lighting/display device

A wet process using an organic solvent is used to produce an organic EL element, which has high light emission efficiency, a long light emission life and a small color change when continuously driven, an illuminating device and a display device are provided. Especially, an organic EL element which emits white light and can be manufactured at low cost is provided.

Organic electroluminescent element, display device and lighting device

The organic electroluminescent element has a pair of electrodes and at least two organic functional layers including a light-emitting layer on a substrate. The light-emitting layer contains a host compound and a phosphorescent dopant. The light-emitting layer or the layer adjacent to the light-emitting layer contains quantum dots.

Organic electroluminescent element

Disclosed is an electroluminescence element, wherein at least a first electrode, a light-emitting layer, and a second electrode may be laminated on a substrate in said order. In said element, the light-emitting layer may contain quantum dots, and an intermediate layer formed from a polymer containing nitrogen atoms may be formed between the first electrode and the light-emitting layer.

Electroluminescence element

An object of the present invention is to provide an organic electroluminescent element that has low drive voltage, high emission efficiency, long endurance and an excellent effect of preventing generation of dark spots. Another object of the present invention is to provide a lighting device and a display device each including the organic electroluminescent element. The organic electroluminescent element according to the present invention includes an anode, a cathode, and an emissive layer, and the organic electroluminescent element includes a layer containing compound A that has a difference of 0 nm or more and 5 nm or less between the maximum emission wavelength on the shortest wavelength side in an emission spectrum measured at 300 K and the maximum emission wavelength on the shortest wavelength side in an emission spectrum measured at 77 K.

Organic electroluminescent element, lighting device, and display device

An organic electroluminescent device containing: a six-coordinate, ortho-metalated iridium complex represented by the formula (I):  wherein V represents a trivalent linking group and is bound to Lto Lthrough covalent bonds; each of Lto Lis represented by the formula (II)  and Rrepresents a substituted aryl group having seven or more carbon atoms.

Organic electroluminescent device, display apparatus, and lighting apparatus

Disclosed are: an organic EL material which emits light having a short wavelength and has high luminous efficiency and long light emission life; an organic EL element which contains the organic EL material; and a lighting device and a display device, each of which comprises the organic EL element. The organic EL material is a compound represented by Formula (1): 

Organic electroluminescent material, organic electroluminescent element, display device and lighting device

An organic electroluminescent element comprising a metal complex represented by Formula (1), 

Organic electroluminescent element, white light emission element, full color display device and lighting device

A thermal transfer recording material contains at least one colorant represented by the following general formula (II), 

Thermal transfer recording material and thermal transfer recording method

An azomethine dye represented by the following Formula 1: wherein Y represents a substituent of 0.2&#x2266;&#x3c3;p&#x2266;0.9, Zand Zeach represent &#x2014;CR&#x2550;, where Rrepresents a hydrogen atom or a substituent, or &#x2014;N&#x2550;, L represents the group represented by the following Formula 1, X represents an unsubstituted or substituted di-alkylamino group, R represents an unsubstituted or substituted alkyl group, and n represents an integer more than 0. wherein B represents a group of non-metallic atoms which are necessary to form a heterocyclic ring.

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Hachioji, Japan

Dai Ikemizu