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

IPC: H01L51/50 ,  C07F7/08 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

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.

公开(公告)号：JP2002198175A

公开(公告)日：2002-07-12

申请号：JP2000393986

申请日：2000-12-26

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  TOMINAGA TAKESHI ,  MURASE SEIICHIRO

IPC: H01L51/50 ,  C07F7/08 ,  C09K11/06 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting element having high luminescence efficiency, high luminance, and superior in color purity. SOLUTION: The light-emitting element is constituted of an element, which a luminescence substance exists in between a positive pole an a negative pole, and emits light through electrical energy, and this luminescence substance contains the organic florescent substance expressed with a formula (1). Here R1 to R16, 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 a ring structure may be formed between adjoining substitution groups.

公开(公告)号：JP2002050473A

公开(公告)日：2002-02-15

申请号：JP2000235393

申请日：2000-08-03

Applicant: TORAY INDUSTRIES

Inventor： MURASE SEIICHIRO ,  KOHAMA TORU ,  TOMINAGA TAKESHI

IPC: H05B33/10 ,  H01L51/50 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element in which the durability is enhanced and utilizing efficiency of electric energy is high. SOLUTION: This is the element in which a light emitting substance exists between a positive electrode and a negative electrode and which emits light by electric energy, and the element contains at least one kind of product formed by a photoreaction.

公开(公告)号：JP2002033194A

公开(公告)日：2002-01-31

申请号：JP2000217297

申请日：2000-07-18

Applicant: TORAY INDUSTRIES

Inventor： MURASE SEIICHIRO ,  KOHAMA TORU ,  TOMINAGA TAKESHI

IPC: H01L51/50 ,  C07F5/02 ,  C09K11/06 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element capable of emitting each color light and having high emission efficiency and high luminance. SOLUTION: This light emitting element is formed of an electroluminescence element comprising a compound of general formula 1 or a metal complex thereof. (wherein R1-R4, which may be the same or different, each represent hydrogen, an alkyl, cylcloalkyl, aralkyl, alkenyl, cycloalkyl, or alkynyl group, a hydroxyl group, a mercapto, alkoxy, alkylthio, arylether, arylthioether, or aryl group, a heterocyclic group, a halogen, a haloalkane, haloalkene, haloalkyne, or cyano group, an aldehyde group, a carbonyl, carboxyl, ester, carbamoyl, amino, nitro, silyl, or siloxanyl group, a condensed ring, heterocyclic ring or aliphatic ring formed with an adjacent substituent, or a single bond, ether bond, amino bond, amido bond, ester bond or sulfide bond with another frame).

公开(公告)号：JP2002008862A

公开(公告)日：2002-01-11

申请号：JP2000184268

申请日：2000-06-20

Applicant: TORAY INDUSTRIES

Inventor： TOMINAGA TAKESHI ,  MURASE SEIICHIRO ,  KOHAMA TORU

IPC: H01L51/50 ,  C07D241/42 ,  C07D333/20 ,  C07D471/04 ,  C07D471/16 ,  C09K11/06 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a red light-emitting element of high electric energy utilization efficiency and an excellent color purity. SOLUTION: This element has a luminous material between an anode and a cathode and emits light of a peak wavelength of 580 nm to 750 nm by electric energy. The element contains a fluorescent compound of a fluorescent peak wavelength of 580 nm to 750 nm and a chemical compound including a base skeleton condensed from at least two heteloocyclics.

公开(公告)号：JP2002008861A

公开(公告)日：2002-01-11

申请号：JP2000184267

申请日：2000-06-20

Applicant: TORAY INDUSTRIES

Inventor： TOMINAGA TAKESHI ,  MURASE SEIICHIRO ,  KOHAMA TORU

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

Abstract: PROBLEM TO BE SOLVED: To provide a red light-emitting element of high electric energy utilization efficiency and an excellent color purity. SOLUTION: This element has a luminous material between and anode and a cathode and emits light of a peak wavelength of 580 nm to 750 nm by electric energy. The element contains at least a fluorescent compound of a fluorescence peak wavelength of 540 nm to 750 nm and a chemical compound including a porphyrin skeleton.

公开(公告)号：JP2001338763A

公开(公告)日：2001-12-07

申请号：JP2000159882

申请日：2000-05-30

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  TOMINAGA TAKESHI ,  MURASE SEIICHIRO

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

Abstract: PROBLEM TO BE SOLVED: To provide a red luminescent element having high utilization efficiency of electrical energy and superior color purity. SOLUTION: This luminescent element contains a luminescent substance present between a positive electrode and a negative electrode and emits light, having a peak wavelength of 580 nm to 720 nm by electrical energy. The element is characterized, by containing at least a fluorescent compound having a fluorescent peak wavelength of 540 nm to 720 nm and a coumarin derivative.

公开(公告)号：JP2001297881A

公开(公告)日：2001-10-26

申请号：JP2000110411

申请日：2000-04-12

Applicant: TORAY INDUSTRIES

Inventor： TOMINAGA TAKESHI ,  MURASE SEIICHIRO ,  KOHAMA TORU

IPC: H01L51/50 ,  C09K11/06 ,  H05B33/12 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a red color light emission element which is excellent in color purity and has high utilization efficiency of electric energy. SOLUTION: The light emission element in which a light emission material exists between an anode and a negative electrode, and emits light having a peak wavelength of 580 nm or more to 720 nm or less by electric energy, and an element contains a compound which has a pyromethene skeleton shown in a formula (1), or its metal complex. Here, at least one of R1-R4 is an aromatic ring or aromatic ring vinyl group, and at least one part of these aromatic rings substituted with an alkyl, an alkoxy, an alyroxy, a thioether, an aralkyl, or cyril. Moreover, aromatic rings or R1-R4 and R5-R7 which are not an aromatic ring vinyl group may be same or differ from each other, respectively, and they are chosen from hydrogen, an alkyl, an alkoxy, halogen, an alyl, an aralkyl, an alkenyl, an alyroxy, a heterocyclic, a cyano, an aldehyde, a carbonyl, an ester, a carbamoyl, an amino, and an aliphatic series ring. Although X1 is carbon or nitrogen, in the case of nitrogen, the above R7 does not exist.

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.