Sumitomo Chemical Company, Limited

Joled Inc.

Panasonic Corporation

Sumitomo Chemical Company, Limtied

Cambridge Display Teclmology Limited

Cambridge Display Technology Limited

Hidenobu Kakimoto

Tomoya Nakatani

Shuhei Nakatani

Kei Sakanoue

Seiji Shinkai

Takahiro Ueoka

Osamu Goto

Hiroyuki Saito

Shuichi Haraguchi

Masashi Ogawa

Tomohiro Shiraki

Takanobu Noguchi

Tomoyuki Suzuki

Chizu Sekine

Martin Humphries

Annette Steudel

Kiran Timothy Kamtekar

Noriyuki Hida

Makoto Anryu

Ruth Pegington

Haruka Kusukame

Sophie Barbara Heidenhain

Satoshi Mikami

Takuya Mori

Hisaaki Miyamoto

Nozomi Masui

Hiroyuki Hayasaka

Shigeya Kobayashi

Shota Moriwaki

Sadamu Yoshida

Yasutaka Yatsumonji

Nobuchika Iwata

Elena Hojas Garcia

Toshihiro Hodai

Annette Regine Steudel

Sophie Heidenhain

Martin John Humphries

A method for producing a liquid composition formed of a phosphorescent material and an organic solvent includes the steps of: dissolving a phosphorescent material in an organic solvent to prepare a mixed liquid, and filtering the mixed liquid by a filtering device. The filtering device is a housing or holder, a fluororesin membrane filter, and a filter support member. A material of a portion of the housing and holder in contact with the mixed liquid is a metal or a mixture of metal and at least one of glass, fluororesins, polyethylene not containing a phosphorus antioxidant, and polyethylene not containing an oxidized phosphorus antioxidant. A material of a portion of the filter support member in contact with the mixed liquid is at least one of metals, glass, fluororesins, polyethylene not containing a phosphorus antioxidant, and polyethylene not containing an oxidized phosphorus antioxidant.

Method for producing liquid composition

A polymer compound comprising a constitutional unit represented by the following formula (1) and a constitutional unit represented by the following formula (X) and/or a constitutional unit represented by the following formula (Y), [wherein, aand aeach independently represent an integer of 0 or more. Arand Areach independently represent an arylene group or a divalent heterocyclic group and these groups each optionally have a substituent. Arand Areach independently represent an arylene group, a divalent heterocyclic group or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are bonded directly to each other, and these groups each optionally have a substituent. When there are a plurality of Arand a plurality of Ar, each of them may be the same or different. R, Rand Reach independently represent an alkyl group, an aryl group or a monovalent heterocyclic group and these groups each optionally have a substituent. When there are a plurality of Rand a plurality of R, each of them may be the same or different.]Ar&#x2003;&#x2003;(Y)[wherein, Arrepresents an arylene group, a divalent heterocyclic group or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are bonded directly to each other, and these groups each optionally have a substituent.].

Polymer compound and light emitting device using the same

A composition which is useful for producing a light emitting device having excellent luminance life is provided. The composition contains a primary fluorinated alcohol represented by the formula (1), a secondary fluorinated alcohol represented by the formula (1') and an electron injectable compound or an electron transportable compound, wherein the content of the secondary fluorinated alcohol is 0.01% by mass to 0.75% by mass with respect to the total content of the primary fluorinated alcohol and the secondary fluorinated alcohol:CHFOH&#x2003;&#x2003;(1)CHFOH&#x2003;&#x2003;(1&#x2032;)In the formula (1), n represents an integer of 1 to 10, and m is an integer satisfying 1&#x2264;m&#x2264;2n+1. In the formula (1&#x2032;), n&#x2032; represents an integer of 3 to 10, and m&#x2032; is an integer satisfying 1&#x2264;m&#x2032;&#x2264;2n&#x2032;+1.

Composition and light emitting device obtained by using the composition

A composition comprising an organic EL material, a solvent (A) represented by the formula (1), an aromatic hydrocarbon solvent (B) and an aromatic ether solvent (C): [wherein Rrepresents an alkyl group having a number of carbon atoms of 10 to 12].

Composition and light emitting device using the same

A composition containing a phosphorescent compound and solvents, which is useful for producing a film having excellent flatness when used in a discharge type application method, is provided. The composition contains a phosphorescent compound, a solvent (A) and a solvent (B), in which the boiling point under 1 atm of the solvent (A) (bpA (&#xb0; C.)) and the boiling point under 1 atm of the solvent (B) (bpB (&#xb0; C.)) satisfy formulas (11) and (12), and the content of the solvent (A) (wtA (by weight)) and the content of solvent (B) (wtB (by weight)) satisfy formula (13):bp&#x3c;200&#xb0; C.&#x2264;bp&#x2003;&#x2003;(11)70&#xb0; C.&#x2264;bp&#x2212;bp&#x2264;120&#xb0; C.&#x2003;&#x2003;(12)wt&#x2264;wt&#x2003;&#x2003;(13).

Composition containing phosphorescent compound and light emitting device using the same

A polymer compound is provided having constitutional units of formula (1) and formula (2), and a constitutional unit of formula (3) and/or (4'): wherein Arto Ar, Ar, Ar&#x2032; and Arrepresent arylene groups or the like; Arto Arrepresent aryl groups or the like; Arrepresents (2+p)-valent aromatic hydrocarbon group or the like; Arrepresents (2+n)-valent aromatic hydrocarbon group or the like; Rrepresents alkyl group or the like; L, L, Land Lrepresent alkylene groups or the like; Land Lrepresent oxygen atoms or the like; Qrepresents monovalent crosslinkable group; Q&#x2032; to Q&#x2032; represent monovalent crosslinkable groups or the like; x, y, c, nA and nD represent 0 or 1; p represents integer of 1 or greater; na and ng represent integer of 0 to 3; nb and nh represent integer of 0 to 12; and n represents integer of 1 to 4.

Polymer compound and light emitting element using same

A problem to be solved of the present invention is to provide a liquid composition for an organic semiconductor device having good coating property, wherein the lifetime of the function of an organic semiconductor device is prolonged when an organic layer is formed from the liquid composition for an organic semiconductor device, and a process for producing the liquid composition. A mean for solving the problem is a process for producing a liquid composition for an organic semiconductor device comprising a step of dissolving an organic compound which is solid at 1 atm and 25&#xb0; C. in an organic solvent which is liquid at 1 atm and 25&#xb0; C. and has a halogen compound concentration of not more than 100 ppm by weight.

Process for producing liquid composition for organic semiconductor element

A method is provided for producing an organic EL device, capable of producing an organic EL device having a long light emission life, an organic EL device produced by the production method, and a planar light source, a lightening system and a display device each having the organic EL device. Included is a method for producing an organic electroluminescence device including a first electrode; a second electrode; and an organic layer including an organic compound provided between the first and second electrodes. The organic layer is formed by a method including an organic thin film forming step of forming, by coating, an organic thin film including an organic compound on a surface of a layer on which the organic layer is formed, under low-humidity; and an organic thin film storing step of storing the organic thin film obtained by the organic thin film forming step, under high-humidity.

Method for producing electroluminescence device

A problem of the present invention is to prevent a base layer beneath the layer to be irradiated with light from deterioration in property and a functional thin film from deterioration in property as the fine patterning of a functional film is performed with light irradiation. Means for solving the problem is a compound obtained by dimerizing with light irradiation a compound (A) containing a group that has photosensitivity and can be photodimerized and a group having lyophilicity and a compound (B) containing a group that has photosensitivity and can be photodimerized and a group having liquid-repellency.

Compound obtained by dimerizing with light irradiation, a compound containing a group having lyophilicity, and a compound containing a group having liquid-repellency

A problem of the present invention is to provide a device having good characteristics and long life, wherein a functional thin film is formed in a desired region by a coating method; a thin film transistor; a method for producing the device; and a method for producing the thin film transistor. This problem can be solved by a device comprising: a substrate, a first electrode formed on the substrate, a functional thin film formed above the first electrode, and a second electrode disposed above the functional thin film, characterized by further comprising, in a region surrounding the region where the functional thin film is formed, a film containing a compound in which a group containing fluorine and a &#x3c0;-conjugated system are bound together by a cycloalkene structure or a cycloalkane structure.

Device, thin film transistor, method for manufacturing the device and method for manufacturing the thin film transistor

A polymer compound having a repeating unit of the following formula (1): (wherein, Rrepresents a substituent, Qand Qrepresent a group containing a benzocyclobutane structure, a represents an integer of 0 to 3. When there exist a plurality of Rs, these may be the same or different).

Polymer compound and polymer light emitting device using the same

Problem to be solved by the present invention is to prevent volatilization of an organic solvent while a liquid composition for an organic semiconductor device is stored by placing in a container, and to prevent deterioration in function of an organic compound for forming an organic semiconductor device. Means for solving the problem is a method of storing a liquid composition for an organic semiconductor device comprising the step of storing the liquid composition for an organic semiconductor device containing an organic compound for forming an organic semiconductor device, and an organic solvent, in a container having a container body, a packing covering an opening part of the container body, and a lid, wherein the container body has an inner wall formed of a material which does not chemically act on the organic solvent nor on the organic compound, and a surface of the packing, which covers the opening part and which comes into contact with the opening-periphery part when the packing and the lid are mounted to the container body to form a sealed state, is formed of a material containing a resin having fluorine atom.

Method of storing liquid composition for organic semiconductor element

Disclosed is a polymer light-emitting device having a light-emitting layer arranged between an anode and a cathode, and a hole transport layer arranged between the light-emitting layer and the anode. This polymer light-emitting device is characterized in that the hole transport layer is a layer containing a polymer compound which contains a repeating unit represented by the general formula (I) below, a repeating unit represented by the general formula (II) below and a repeating unit represented by the general formula (III) below. 

Polymer light-emitting device, polymer compound, composition, liquid composition, and conductive thin film

Disclosed is a block copolymer characterized by containing a block (A) containing two or more different repeating units respectively composed of a specific divalent heterocyclic group, and a repeating unit composed of an arylene group, and a block (B) containing a repeating unit composed of an arylene group and a repeating unit composed of a divalent aromatic amine residue. Also disclosed are a composition containing a solvent, a light-emitting material other than the block copolymer, a hole-transporting material other than the block copolymer, an electron-transporting material other than the block copolymer or a combination of two or more of them, in addition to the block copolymer; a light-emitting thin film characterized by containing the block copolymer; and a polymer light-emitting device characterized by having an anode, a cathode and an organic layer containing the block copolymer and arranged between the anode and the cathode.

Block copolymer and polymer light-emitting device

Growing community of inventors

Tsukuba, Japan

Hidenobu Kakimoto