Konica-minolta Holdings, Inc.

Konica Minolta Medical and Graphic, Inc.

Konica Minolta, Inc.

Masato Nishizeki

Tomohiro Oshiyama

Eisaku Katoh

Norio Miura

Shinya Otsu

Dai Ikemizu

Kimihiko Okubo

Hiroshi Kita

Yoshiyuki Suzuri

Kimihiko Ookubo

Noboru Sekine

Tatsuo Tanaka

Toshiyuki Takabayashi

Noriko Yasukawa

Kaori Ono

Takeshi Kurata

An organic electroluminescent element having at least one organic layer including a light emitting layer sandwiched between a positive electrode and a negative electrode, which is characterized in that at least one organic layer contains an organometallic complex represented by General Formula (2). 

Organic electroluminescent element, lighting device and 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

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

An organic electroluminescent element containing an anode and a cathode having therebetween a light emitting layer, wherein the light emitting layer contains a guest compound having a substructure represented by the following Formula (A): wherein Ra represents alkyl, alkenyl, alkynyl, cycloalkyl, aromatic hydrocarbon, aromatic heterocyclic or heterocyclic, Rb and Rc represent hydrogen or a substituent, A1 represents a group of atoms which forms an aromatic hydrocarbon ring or an aromatic heterocycle, M represents Ir or Pt, and a host compound having the following Formula (1): wherein Rarepresents alkyl, alkenyl, alkynyl, cycloalkyl or heterocyclic, R, Rand Reach represent hydrogen or a substituent, and n1, n2 and n5 each represent 0 to 4.

Organic electroluminescent element, illuminator and display

An organic electroluminescent element containing an anode and a cathode having therebetween a light emitting layer, wherein the light emitting layer contains a guest compound having a substructure represented by Formula (AA): wherein A represents a group of atoms necessary to form an aromatic hydrocarbon ring or an aromatic heterocycle, B represents a group of atoms necessary to form a 5-membered aromatic heterocycle containing nitrogen or a 5-membered heterocycle containing nitrogen and M represents Ir or Pt, and a host compound represented by Formula (1): 

A material for an organic EL element showing high light emission efficiency and high color purity of the emission light, an organic EL element, a lighting device and a displaying device each using the material.

Organic electroluminescent element using iridium complex, display device and lighting device using iridium complex

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

An organic electroluminescent element includes a laminated body incorporating an anode substrate, an anode, at least one non-light emitting organic layer A exhibiting positive hole transportability, at least one light emitting organic layer B, at least one non-light emitting organic layer C exhibiting electron transportability, a cathode, and a cathode substrate in the sequence set forth. At least 80% by weight of the organic layer A and the organic layer C in the laminated body is formed via a wet process, and the laminated body is made with an adhesion process between the organic layer A and the organic layer B, or between the organic layer B and the organic layer C.

Organic electroluminescent element, production method of the same, display device, and lighting device

An organic electroluminescent element comprising a laminated body incorporating an anode substrate, an anode, at least one non-light emitting organic layer A exhibiting positive hole transportability, at least one light emitting organic layer B, at least one non-light emitting organic layer C exhibiting electron transportability, a cathode, and a cathode substrate in the sequence set forth, wherein at least 80% by weight of the organic layer A and the organic layer C in the laminated body is formed via a wet process, and the laminated body is made with an adhesion process between the organic layer A and the organic layer B, or between the organic layer B and the organic layer C.

Disclosed is an organic EL device material having high luminous efficiency and high color purity. Also disclosed are an organic EL device, and an illuminating device and a display each using the organic EL device.

Material for organic electroluminescence element, organic electroluminescence element, display device and lighting device

A white light emitting organic electroluminescent element comprising two electrodes having therebetween one or more constituting layers including a light emission layer, the one or more constituting layers comprising at least two phosphorescent compounds, wherein at least one of the phosphorescent compounds is a green light emitting ortho metalated complex; and a spectral ratio of the green light emitting ortho metalated complex in ae emission spectral distribution in a range of 400-800 nm is not less than 60%.

White light emitting organic electroluminescence element, display and illuminator

An active ray curable ink-jet ink composition comprising a photo-induced acid generating agent containing an onium salt which does not generate benzene under active ray radiation, and a photopolymerizable compound containing a compound having an oxetane ring in the molecule.

Active ray curable ink-jet composition, image forming method using the same, ink-jet recording apparatus, and triarylsulfonium salt compound

An active ray curable composition, including an epoxy compound which is represented by Formula (A) and an oxetane compound, The active ray curable compound exhibiting a viscosity of 1 to 500 mPa&#xb7;s at 25&#xb0; C.: 

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Hachioji, Japan

Masato Nishizeki