公开(公告)号：JP2002050480A

公开(公告)日：2002-02-15

申请号：JP2000236644

申请日：2000-08-04

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  NISHIYAMA TAKUYA ,  KITAZAWA DAISUKE

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element in which luminous efficiency is enhanced, and which is superior in a chromatic purity with a high luminance. SOLUTION: This is the organic electric field light emitting element wherein a light emitting substance exists between a positive electrode and a negative electrode, and the element has a fluorescent skeleton coupled by a single bond, and the respectively coupled fluoreseent skeleton includes an organic fluorescent material of a formula 1 having a stereoscopic repulsion. R1 to R18 are respectively selected from hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxy group, alkylthio group, aryl ether group, arylthio ether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group, and a bonding ring of aromatic, alicyclic or heterocyclic ring formed between an adjacent substituted group.

公开(公告)号：JP2001257078A

公开(公告)日：2001-09-21

申请号：JP2000397145

申请日：2000-12-27

Applicant: TORAY INDUSTRIES

Inventor： TOMINAGA TAKESHI ,  KITAZAWA DAISUKE ,  TAKANO AKIKO ,  MURASE SEIICHIRO

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a luminous element that has a high utilization efficiency of electric energy and a high brightness. SOLUTION: The luminous element comprises a luminous substance between a positive electrode and a negative electrode and emits light by electric energy. The element contains at least a compound as shown in the following formula (1); Formula (1), wherein A is an organic luminescent structure, B is a substituted group, of which isotropic rotation to A is limited by a cubic repulsion between A and B or B and B and n is any of natural number 1 to 4.

公开(公告)号：JP2000208272A

公开(公告)日：2000-07-28

申请号：JP24722699

申请日：1999-09-01

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  TOMINAGA TAKESHI ,  HIMESHIMA YOSHIO

IPC: G09F9/30 ,  C09K11/06 ,  G09F13/22 ,  H01L27/32 ,  H01L51/50 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a red light emitting element having high color purity by including at least a styryl heterocyclic derivative having a fluorescence peak wave length being in a specific range and a compound having a pyrromethene skeleton or the metallic complex. SOLUTION: A light emitting material emits the light in a peak wave length of 580 nm to 720 nm by electric energy. This light emitting material includes a styryl heterocyclic derivative having a fluorescence peak wave length of 540 nm to 720 nm and a compound having a pyrromethene skeleton or the metallic complex. The pyrromethene skeleton is expressed by the formula. In the formula, R1 to R7 may be the same or may be different, and are hydrogen, alkyl, alkoxy, halogen, aryl, aralkyl, alkenyl or the like, X is carbon or nitrogen, but in the case of nitrogen, R7 does not exist. B, Be, Mg, Cr, Fe, Co, Ni, Cu, Zn, Pt or the like are preferably cited as metal capable of coordinating with the metallic complex.

公开(公告)号：JP2000208267A

公开(公告)日：2000-07-28

申请号：JP23241599

申请日：1999-08-19

Applicant: TORAY INDUSTRIES

Inventor： TOMINAGA TAKESHI ,  KITAZAWA DAISUKE ,  HIMESHIMA YOSHIO

IPC: C09K11/06 ,  G09F13/22 ,  H01L51/50 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a red light emitting element having high color purity by including at least a quinolinol metallic complex having a fluorescent peak wave length being in a specific range and a compound having a pyrromethene skeleton or the metallic complex. SOLUTION: A light emitting material emits the light in a peak wave length of 580 nm to 720 nm by electric energy. This light-emitting material includes a quinolinol metallic complex having a fluorescence peak wave length of 540 nm to 720 nm and a compound having a pyrromethene skeleton or the metallic complex. The pyrromethene skeleton is expressed by the formula. In the formula, R1 to R7 may be the same or may be different, and the hydrogen, alkyl, alkoxy, halogen, aryl, aralkyl, alkenyl or the like, X is carbon or nitrogen, but in the case of nitrogen, R7 does not exits. B, Be, Mg, Cr, Fe, Co, Ni, Cu, Zn, Pt or the like are preferably cited as metal capable of coordinating with the metallic complex.

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

公开(公告)号：JP2003206278A

公开(公告)日：2003-07-22

申请号：JP2002297030

申请日：2002-10-10

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  KOHAMA TORU ,  TOMINAGA TAKESHI

IPC: H01L51/50 ,  C07D213/22 ,  C07D471/04 ,  C09K11/06 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a tetraphenylmethane derivative and a light-emitting element having high emission efficiency, high luminance and excellent color purity. SOLUTION: This tetramethylphenylmethane derivative is represented by general formula (1) (wherein, R 1 to R 20 are each selected from hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, hydroxy group, mercapto group, an alkoxy group, an alkylthio group, an arylether group, an arylthioether group, an aryl group, a heterocyclic group, a halogen, a haloalkane, a haloalkene, a haloalkyne, cyano group, an aldehyde group, carbonyl group, carboxy group, an ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group and a cyclic structure formed between the adjacent substituents, with the proviso that at least one of R 1 to R 5 and at least one of R 6 to R 10 are each a substituent having a pyridine ring skeleton). The light-emitting element is obtained by using the compound as a light-emitting substance present between the anode and the cathode and capable of emitting light with electrical energy. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003096072A

公开(公告)日：2003-04-03

申请号：JP2001293437

申请日：2001-09-26

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  KOHAMA TORU ,  TOMINAGA TAKESHI

IPC: H01L51/50 ,  C07D311/96 ,  C07D335/12 ,  C07D519/00 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element, having a high light-emitting efficiency, a high brightness and an excellent color purity. SOLUTION: This luminous element is a spiro compound expressed by formula (1) and emits light by an electric energy through using the compound as a light emitting substance present between an anode and a cathode. (wherein A1 and A2 are each selected from among a single bond, a substituted or a nonsubstituted alkyl chain, ether chain, ketone chain, a substituted or nonsubstituted amino chain, providing that A1 is not A2 ; B represents C or Si; R1 to R16 are selected from H, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxy group, mercapto group, alkoxy group, alkylthio group, arylether group, arylthioether group, aryl group, heterocyclic group, halogen group, haloalkane group, haloalkene group, haloalkine group, cyano group, aldehyde group, carbonyl group, carboxy group, ester group, carbamoyl group, amino group, nitro group, silyl group, siloxanyl group and a ringed structure formed between adjacent substituents).

公开(公告)号：JP2003086381A

公开(公告)日：2003-03-20

申请号：JP2001271543

申请日：2001-09-07

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  KOHAMA TORU ,  TOMINAGA TAKESHI

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element that has a high luminous efficiency, low drive voltage and high durability. SOLUTION: This is a light-emitting element that comprises film layers including at least a luminous layer and an electron carrier layer made of an organic compound on a first electrode formed on the substrate and a second electrode formed on the film layers. The above electron carrier layer is made of an organic compound having a molecular weight of 580 or more, and a donor impurity is doped in at least a part of the electron carrier layer, and the above organic compound is a heterocyclic compound and it has two or more of nitrogen atoms in at least one cycle structure that constitutes the heterocycle. Or a donor impurity is doped in at least a part of the electron carrier layer and the above organic compound is a non-metallic complex system heterocyclic compound, and it has zero or one nitrogen atom for one cycle structure that constitutes the heterocycle.

公开(公告)号：JP2002015871A

公开(公告)日：2002-01-18

申请号：JP2001120709

申请日：2001-04-19

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  KITAZAWA DAISUKE ,  MAKIYAMA AKIRA

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a luminescent element having high usage efficiency of electrical energy, high luminance and high color purity. SOLUTION: This luminescent element has a luminescent substance present between the positive electrode and the negative electrode, and the element emits light by electrical energy and contains a triptycene derivative.

公开(公告)号：JP2001332385A

公开(公告)日：2001-11-30

申请号：JP2000148011

申请日：2000-05-19

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  KITAZAWA DAISUKE ,  MAKIYAMA AKIRA

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element which has high luminous efficiency, high luminance, and which is superior in chromatic purity. SOLUTION: This is an element in which a luminescent substance exists between a positive electrode and a negative electrode, and which emits light by the electric energy, and the element is the light emitting element containing an organic fluorescent material having a fluorescent skeleton substituted by silyl group(s), and the organic fluorescent material having the fluorescent skeleton substituted by silyl group(s) is a compound of a formula (1). Here, R1 to R4 are respectively hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxy group, alkylthio group, aryl ether group, arylthio ether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, ester group, carbamoyl group, amino group, nitro group, or siloxanyl group, and further, at least one of R1 to R4 has the fluorescent skeleton.