Mitsubishi Chemical Corporation

Hideki Gorohmaru

Koichiro Iida

Koichi Ishibashi

Kazuki Okabe

Yanjun Li

Tomokazu Umemoto

Tomomi Okamoto

Wataru Shimizu

Ichiro Imada

Takashi Oya

Kazuhiro Nagayama

Kyoko Endo

Tatsushi Baba

Tomohiro Abe

Yoshimasa Bando

Kouji Adachi

Yoshiko Kajiyama

Futoshi Tanaka

Takayuki Shouda

Hideji Komatsu

Yasuyuki Tsurutani

Akira Migita

Emi Nakamoto

Iida Koichiro

Ishibashi Koichi

Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer. The polymer contains a repeating unit represented by the following Formula (1) or a repeating unit represented by the following Formula (2) (wherein, Arand Areach represent an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; X represents —C(R)(R)—, —N(R)—, or —C(R)(R)—C(R)(R)—; Rand Ras well as Rand Reach independently represent an alkyl group optionally having a substituent; Rand Reach independently represent an alkyl group optionally having a substituent, an alkoxy group optionally having a substituent, or an aralkyl group optionally having a substituent; and Rto Rand Rto Reach independently represent hydrogen, an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aromatic hydrocarbon group optionally having a substituent).

Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, organic EL lighting, and manufacturing method for organic electroluminescent element

The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Electron-accepting compound and composition for charge-transporting film, and luminescent element using same

The present invention provides with an electron-accepting compound having a structure of the following formula (1): 

The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group &#x3b1; for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group &#x3b1; comprises: a compound &#x3b1;1; and another compound &#x3b1;n satisfying a specific condition.

Composition for organic electroluminescent element, organic electroluminescent element, display and lighting

The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.

Iridium complex compound, solution composition containing the compound, organic electroluminescent element, display, and lighting

The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.

Organic compound, charge-transporting material, composition containing the compound, organic electroluminescent element, display device, and lighting device

The objection of invention is to provide an organic electroluminescent element having an excellent current-voltage property. The organic electroluminescent element of the invention comprises an anode, a light emitting layer and a cathode, in this order, wherein a total number of kinds of an electron transport material and a light emitting material contained in the light emitting layer is five or more. Preferably, a total number of kinds of an electron transport material contained in the light emitting layer is four or more, and at least one of an ionization potential and an electron affinity of three kinds or more of the electron transport materials contained in the light emitting layer is different from each other.

Organic electroluminescent element and organic electroluminescent device

An organic electroluminescent element comprising: an anode; a cathode; a luminescent layer provided between the anode and the cathode; and a hole injecting and transporting layer provided between the anode and the cathode and adjacent to the luminescent layer, wherein at least the luminescent layer is formed by a wet film forming method, and contains a charge transporting material and a luminescent material, in which the charge transporting material contains a hole transporting material and an electron transporting material each having a specific partial structure, and the luminescent material contains at least three kinds of materials and has an emission spectrum having at least two kinds of emission maximums.

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

A polymer comprising a repeating unit represented by the following formula (1) and a cross-linkable group wherein Arto Ar, R, Rand r are as defined; and an organic electroluminescent element containing at least one organic layer containing a network polymer formed by cross-linking the polymer, the layer being a hole injection layer or a hole transporting layer.

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

The present invention relates to a polymer comprising a repeating unit containing a specific partial structure and a repeating unit containing a crosslinking group, a composition for an organic electroluminescent element comprising the polymer, and an organic electroluminescent element comprising an organic layer formed using the composition for an organic electroluminescent element by a wet film formation method.

Polymer and organic electroluminescent element

An object of the present invention is to provide a conjugated polymer which has a high hole transportability and is excellent in solubility and depositability. Another object of the present invention is to provide an organic electroluminescence element which is capable of low voltage driving and has a high luminous efficiency and drive stability. The conjugated polymer of the present invention is a conjugated polymer containing a specific structure as the repeating unit, where the conjugated polymer contains an insolubilizing group as a substituent, the weight average molecular weight (Mw) is 20,000 or more and the dispersity (Mw/Mn) is 2.40 or less.

Conjugated polymer, insolubilized polymer, organic electroluminescence element material, composition for organic electroluminescence element, polymer production process, organic electroluminescence element, organic EL display and organic EL lighting

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Kanagawa, Japan

Hideki Gorohmaru