公开(公告)号：JP2000208273A

公开(公告)日：2000-07-28

申请号：JP24722799

申请日：1999-09-01

Applicant: TORAY INDUSTRIES

Inventor： TAKANO AKIKO ,  TOMINAGA TAKESHI ,  HIMESHIMA YOSHIO ,  KITAZAWA DAISUKE

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 thiophene 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 thiophene 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 expresed 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：JP2000208268A

公开(公告)日：2000-07-28

申请号：JP23241699

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 naphthalimide 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 naphthalimide derivative having a fluorescent 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 desirably cited as metal capable of coordinating with the metallic complex.

公开(公告)号：JP2000208265A

公开(公告)日：2000-07-28

申请号：JP18876699

申请日：1999-07-02

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  TOMINAGA TAKESHI ,  HIMESHIMA YOSHIO ,  KITAZAWA DAISUKE

IPC: C09K11/06 ,  G09F13/22 ,  H01L51/00 ,  H01L51/30 ,  H01L51/50 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a red light emitting element with high efficiency of used electric energy and excellent color purity. SOLUTION: An element wherein a substrate for managing light emission exists between positive and negative electrodes and a light of a peak wavelength ranging within 580 nm or more to 720 nm or under is emitted, this element is a light emitting element including a fluorescent compound of a fluorescent peak wavelength ranging within 540 nm or more to 720 nm or under and including a compound having a pyrromethene skeleton represented in a formula (1) or a metallic complex thereof. In the formula (1), R1 to R7 may be the same or different and are selected from condensed rings formed among neighboring substituted groups of a hydrogen, alkyl, alkoxy, halogen, aryl, aralkyl, alkenyl, arylether, heterocycle, cyano, aldehyde, carbonyl, ester, carbamoyl, and amino and from aliphatic rings. X is a carbon or nitrogen; in a case of a nitrogen, R7 does not exist.

公开(公告)号：JP2002121459A

公开(公告)日：2002-04-23

申请号：JP2000319075

申请日：2000-10-19

Applicant: TORAY INDUSTRIES

Inventor： KAWABE KENICHI ,  KITAZAWA DAISUKE ,  KUBOTA YASUO

IPC: G02B5/20 ,  B01F17/32 ,  C09D5/00 ,  C09D17/00 ,  C09D201/00

Abstract: PROBLEM TO BE SOLVED: To obtain a pigment dispersion and a colorant composition having excellent flow characteristics and dispersion stability and to provide a color filter having excellent surface roughness and contrast. SOLUTION: This pigment dispersion has an amino group in a quinophthalone skeleton represented by general formula 1. The pigment dispersion comprises a phthalic acid derivative represented by general formula 2 or general formula 3. (wherein, R1 to R3 are each selected from hydrogen, a halogen, an alkyl group and an aryl group; m and n denote each an integer of 1-4; and R4 and R5 are each selected from hydrogen, a halogen and an alkyl group). The pigment composition consists essentially of a pigment, a resin and solvent and the colorant composition comprises the pigment dispersion. The color filter comprises colored layers which are colored films formed of each colorant composition.

公开(公告)号：JP2002121418A

公开(公告)日：2002-04-23

申请号：JP2000319076

申请日：2000-10-19

Applicant: TORAY INDUSTRIES

Inventor： KAWABE KENICHI ,  KITAZAWA DAISUKE ,  KUBOTA YASUO

IPC: G02B5/20 ,  B01F17/32 ,  C08K5/3437 ,  C08L101/00 ,  C09B67/20 ,  C09B67/46 ,  G02B5/22

Abstract: PROBLEM TO BE SOLVED: To provide a pigment dispersion and a coloring agent composition, containing finely and stably dispersed particles of a pigment, and having excellent fluidity characteristics and dispersion stability, and further to provide a color filter having excellent surface roughness and contrast of the pixel coating film. SOLUTION: This pigment dispersion is characterized by a pigment disperser having a quinolin skeleton represented by general formula (1) (wherein, R1 is selected from hydrogen, a halogen, an aryl group and a heteroaromatic group; m is an integer of 1-3; R2 and R3 may be same or different, and are each selected from hydrogen, an alkyl group and an aryl group; and n is an integer of 1-4) included therein. The coloring agent composition comprising the pigment, a resin and a solvent as main components is characterized by the pigment dispersion included therein. The color filter is characterized by the colored film formed out of the coloring agent composition.

公开(公告)号：JP2002121410A

公开(公告)日：2002-04-23

申请号：JP2000319074

申请日：2000-10-19

Applicant: TORAY INDUSTRIES

Inventor： KUBOTA YASUO ,  KITAZAWA DAISUKE ,  EGUCHI MASUICHI

IPC: G02B5/20 ,  C09B67/00 ,  C09B67/14 ,  C09B67/20 ,  C09B67/42 ,  G02B5/22 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a pigment having excellent dispersibility, and thereby provide a color paste having excellent dispersion stability of the pigment and a color filter having pixels excellent in transmission, contrast and surface smoothness. SOLUTION: The method for manufacturing a pigment comprises forming hydrophilic groups at least on the surface layer of the pigment by partially breaking the molecular structure of the pigment molecule. The color paste contains a pigment which has been produced by the method for manufacturing a pigment. The color filter is produced by using the color paste.

公开(公告)号：JP2002063989A

公开(公告)日：2002-02-28

申请号：JP2001167809

申请日：2001-06-04

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  KITAZAWA DAISUKE ,  MURASE SEIICHIRO

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

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element having high luminous efficiency, high brightness, and excellent color purity. SOLUTION: The element is the light emitting element characterized in including an organic phosphor which has a phosphor skeleton substituted with a phosphorus oxide group.

公开(公告)号：JP2001313174A

公开(公告)日：2001-11-09

申请号：JP2000127124

申请日：2000-04-27

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  MAKIYAMA AKIRA ,  KOHAMA TORU

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

Abstract: PROBLEM TO BE SOLVED: To provide a luminous element with high energy efficiency and possibility of multi-colored illumination. SOLUTION: At light emitting element having a luminous material between an anode and a cathode, the luminous element includes a derivative of thiophenedioxide shown by the formula (1), where ; R1-R8 can be either the same or different with one another, and represent hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxyl group, mercapto group, alkoxyl group, alkylthio group, arylether group, arylthioether group, aryl group, heterocyclic group, halogen, haloalkane, haloalkene, haloalkyne, cyano group, aldehyde group, carbonyl group, carboxyl group, esther group, carbamoyl group, amino group, nitro group, silyl group, or siloxanyl group, or a cyclic structure formed between adjacent substituent.

公开(公告)号：JP2001307880A

公开(公告)日：2001-11-02

申请号：JP2000115392

申请日：2000-04-17

Applicant: TORAY INDUSTRIES

Inventor： KITAZAWA DAISUKE ,  NISHIYAMA TAKUYA ,  KOHAMA TORU

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

Abstract: PROBLEM TO BE SOLVED: To provide a red-color electroluminescent element which has a high utilization efficiency of electric energy, and which has a high luminance and which is superior in the chromatic purity. SOLUTION: This is the 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 contains a compound expressed in formula (1). Here, R1 to R8 may be either the same or may be different and selected from hydrogen, alkyl group, cycloalkyl group, aralkyl group, alkenyl group, cycloalkenyl group, alkynyl group, hydroxy 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, a ring structure formed between neighboring substituted groups. Further, at least one of R1 to R8 is aryl group.

公开(公告)号：JP2001196182A

公开(公告)日：2001-07-19

申请号：JP2000006935

申请日：2000-01-14

Applicant: TORAY INDUSTRIES

Inventor： KOHAMA TORU ,  MAKIYAMA AKIRA ,  KITAZAWA DAISUKE

IPC: C07D307/79 ,  C07D493/04 ,  C09K11/06 ,  H01L51/50 ,  H05B33/14 ,  H05B33/22

Abstract: PROBLEM TO BE SOLVED: To provide a light emitting element which is excellent in brightness, color purity and luminous emission efficiency. SOLUTION: The element in which a luminescence substance exists between a positive electrode and a negative electrode, and emits light by electrical energy, is a luminous element containing an organic luminescence substance having a furan skeleton which is expressed with formula (1) or (2).