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公开(公告)号：JP2003151774A
公开(公告)日：2003-05-23
申请号：JP2001348774
申请日：2001-11-14
Applicant: TORAY INDUSTRIES
Inventor： MURASE SEIICHIRO , TOMINAGA TAKESHI , KOHAMA TORU
Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element of high durability and reliability. SOLUTION: The element has a luminescent material existing between an anode and a cathode and emits light using electric energy. The element contains a compound represented by the following general formula (1): In the formula, L is a fluorescent skeleton having the center of point or line symmetry and a planar skeleton with two or more rings condensed; A and B are different and each represent a substituted or unsubstituted aryl group existing in a symmetrical position with respect to the center of symmetry of the fluorescent skeleton L.
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公开(公告)号：JP2003086379A
公开(公告)日：2003-03-20
申请号：JP2002150546
申请日：2002-05-24
Applicant: TORAY INDUSTRIES
Inventor： TOMINAGA TAKESHI , MURASE SEIICHIRO , KOHAMA TORU
Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element that has high efficiency of electric energy and high luminance and high color purity. SOLUTION: This is an organic light-emitting element and this element emits light at the peak wavelength of 580 nm or more and 720 nm or less and contains at least a diketopyrrolo[3,4-c]pyrrole derivative as shown in the formula (1) and an organic fluorescent substance having a fluorescent peak wavelength of 580 nm or more and 720 nm or less. In the formula, R and R are chosen from an alkyl group having carbon number of 1-25 or from the formula (2), (R and R are chosen from an alkyl group having carbon number of 1-4, an unsubstituted phenyl group or an phenyl group substituted with an alkyl group having carbon number of 1-3, and Ar is chosen from an alkyl group, a phenyl group having a substituted group chosen from alkoxy group, etc., or the like. m is an integer of 0-4.) Ar and Ar are chosen from a phenyl group having an unsubstituted or substituted group, a naphthyl group or the like.
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公开(公告)号：JP2002359080A
公开(公告)日：2002-12-13
申请号：JP2001166257
申请日：2001-06-01
Applicant: TORAY INDUSTRIES
Inventor： MURASE SEIICHIRO , TOMINAGA TAKESHI , KOHAMA TORU
Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element having high durability, and having high utilization efficiency of electric energy. SOLUTION: An element emits the light with the electric energy by allowing a light emitting substance to exist between an anode and a cathode. This light emitting element is characterized in that the element includes at least a light emitting material and a triplet capturing agent.
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公开(公告)号：JP2002289351A
公开(公告)日：2002-10-04
申请号：JP2001092051
申请日：2001-03-28
Applicant: TORAY INDUSTRIES
Inventor： KOHAMA TORU , TOMINAGA TAKESHI , MAKIYAMA AKIRA
IPC: H01L51/50 , C07D209/44 , C09K11/06 , H05B33/14
Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element which has high luminescence efficiency, high luminosity, and excellent color purity. SOLUTION: In the element which a luminescence substance exists between a positive electrode and a negative electrode and emits light by electric energy, the luminescence substance contains an organic fluorescent substance which has an isoindole skeleton.
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公开(公告)号：JP2002198176A
公开(公告)日：2002-07-12
申请号：JP2000393990
申请日：2000-12-26
Applicant: TORAY INDUSTRIES
Inventor： KOHAMA TORU , TOMINAGA TAKESHI , MURASE SEIICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element having high luminescence efficiency, high luminance, and superior color purity. SOLUTION: The light-emitting element is constituted of an element, which a luminescence substance exists in between a positive pole and a negative pole, and emits light through electrical energy, and this luminescence substance contains the organic fluorescent substance expressed by general formula (1). Here R1 to R10, are respectively chosen from among hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkyinyl group, hydroxyl group, mercapto group, alkoxy group, alkyl-thio group, aryl- ether group, aryl-thio-ether group, aryl group, heterocyclic-ring group, halogen, haloalkane, haloalkene, haloalkine, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, cyril group, and siroxyanyl group, and R3 to R10 may respectively form ring structures between adjoining substitution groups.
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Patent Agency Ranking
公开(公告)号：JP2001307879A
公开(公告)日：2001-11-02
申请号：JP2000115391
申请日：2000-04-17
Applicant: TORAY INDUSTRIES
Inventor： KOHAMA TORU , MAKIYAMA AKIRA , TOMINAGA TAKESHI
Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element which has a high luminous efficiency and which is superior in chromatic purity with a high luminance. SOLUTION: A luminescent material exists between a positive electrode and a negative electrode, and an element emits light in which the peak wave length is not less than 400 nm and not more than 550 nm by the electric energy, and the element contains at least a fluorescent compound and spiro derivatives, whose fluorescent peak wave length is not less than 400 nm and not more than 550 nm.
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公开(公告)号：JP2001223082A
公开(公告)日：2001-08-17
申请号：JP2000030373
申请日：2000-02-08
Applicant: TORAY INDUSTRIES
Inventor： KITAZAWA DAISUKE , TOMINAGA TAKESHI , KOHAMA TORU
Abstract: PROBLEM TO BE SOLVED: To obtain a light emitting element which has high luminosity, high color purity, and high efficiency of an electric energy. SOLUTION: A light emission element in which a luminescence substance exists between a positive electrode and a negative electrode, and emits light by the electric energy, is characterized by inclusion of a compound shown in formula (1) at least. In the formula (1), A is a perinone derivative and B is a substitution group of which the isotoropic rotation to A is restricted by a solid repulsion between A-B or between B-B. The n is one of natural numbers of 1-4.
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公开(公告)号：JP2001223081A
公开(公告)日：2001-08-17
申请号：JP2000030372
申请日：2000-02-08
Applicant: TORAY INDUSTRIES
Inventor： KITAZAWA DAISUKE , TOMINAGA TAKESHI , KOHAMA TORU
Abstract: PROBLEM TO BE SOLVED: To obtain a light emitting element which has high luminosity, high color purity, and high efficiency of an electric energy. SOLUTION: A light emitting element in which a luminescence substance exists between a positive electrode and a negative electrode, and emits light by the electric energy, is characterized by inclusion of a compound shown in formula (1) at least. In the formula (1), A is a naphthalimido derivative and B is a substitution group of which the isotoropic rotation to A is restricted by a solid repulsion between A-B or between B-B. The n is one of natural numbers of 1-4.
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公开(公告)号：JP2001118683A
公开(公告)日：2001-04-27
申请号：JP2000223449
申请日：2000-07-25
Applicant: TORAY INDUSTRIES
Inventor： KOHAMA TORU , TOMINAGA TAKESHI , MAKIYAMA AKIRA
IPC: H01L51/50 , C07D209/14 , C07D235/08 , C07D307/87 , C09K11/06 , H05B33/14
Abstract: PROBLEM TO BE SOLVED: To provide a luminescent element with high luminous efficiency and high brightness and good color purity. SOLUTION: This luminescent element, luminating by electric energy, retaining the material which functions as a luminary, where the material functioning luminescence is at least composed of guest material and host material, is distinguished by the peak of emission spectrum of host material being more than 300 nm and less than 460 nm.
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公开(公告)号：JP2004010736A
公开(公告)日：2004-01-15
申请号：JP2002165293
申请日：2002-06-06
Applicant: TORAY INDUSTRIES
Inventor： MURASE SEIICHIRO , KITAZAWA DAISUKE , TOMINAGA TAKESHI
IPC: H01L51/50 , C07D493/04 , C07D495/04 , C07D519/00 , C09K11/06 , H05B33/14 , H05B33/22
Abstract: PROBLEM TO BE SOLVED: To provide a light emission element having excellent thermal stability, providing high utilization efficiency of electric energy, and having high reliability. SOLUTION: The material for the light emission element using a furofuran derivative is represented by the formula (wherein, Ar 1 and Ar 2 are each an aryl group and may be the same or different; and X is an oxygen atom or a sulfur atom). COPYRIGHT: (C)2004,JPO
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