Resin composition, film, optical filter, image display device, solid-state imaging element, and compound

Patent metadata

Field	Value
Publication number	US-11926740-B2
Application number	US-202016992668-A
Country	US
Kind code	B2
Filing date	Aug 13, 2020
Priority date	Feb 28, 2018
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

Provided are a resin composition including a compound represented by Formula (1) and a resin, a film and a filter including the resin composition, a liquid crystal display device and a solid-state imaging element including the filter, and a compound suitable as a light absorbing component of the resin composition and the filter.

In Formula (1), Dye represents a colorant structural part obtained by removing n1 hydrogen atoms from a squarylium compound having a specific structure. Q 1 is a structural part in which energy levels of a highest occupied molecular orbital and a lowest unoccupied molecular orbital satisfy a specific condition. L 1 represents a divalent linking group and n1 represents an integer of 1 to 4.

First claim

What is claimed is:

1. A resin composition comprising:
a compound represented by Formula (1); and
a resin,

in Formula (1), Dye represents a colorant structural part obtained by removing n1 hydrogen atoms from a compound represented by Formula (2),

in Formula (2), A and B represent an aryl group and a heterocyclic group, or —CH=G, in which G represents a heterocyclic group,
Q 1 represents a structural part satisfying the following (i) and (ii),
(i) an energy level difference between a highest occupied molecular orbital and a lowest unoccupied molecular orbital is 2.9 eV or more,
(ii) an absolute value of the energy level of the lowest unoccupied molecular orbital is lower than an absolute value of an energy level of a lowest unoccupied molecular orbital of Dye, or an absolute value of the energy level of the highest occupied molecular orbital is lower than an absolute value of an energy level of a highest occupied molecular orbital of Dye,
L 1 represents a divalent linking group in which a linking part with Q 1 is composed of an alkylene group, or a divalent linking group which is directly bonded to a ring-constituting carbon atom of an aliphatic ring included in Q 1 , and
n1 represents an integer of 1 to 4,
wherein Dye is a structure up to a portion where a conjugated structure is interrupted due to that the structure of Formula (2) is linked to L 1 , and
wherein Q 1 represents a structural part obtained by removing one hydrogen atom from a compound represented by any one of Formulae (5) to (13),

R 5 to R 20 , R 22 , R 23 , R 25 to R 27 , R 30 to R 36 , R 37a to R 37e , and R 38 to R 42 represent a hydrogen atom or a substituent,
R 21 and R 24 represent a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group, provided that, in a case where R 21 and R 24 are hydrogen atoms, Q 1 is bonded to the linking group L 1 at a nitrogen atom position from which the hydrogen atom has been removed,
X 1 represents an oxygen atom, a sulfur atom, or a carbon atom, and
n represents an integer of 1 to 3.

2. The resin composition according to claim 1 ,
wherein A in Formula (2) is a heterocyclic group.

3. The resin composition according to claim 1 ,
wherein Dye represents a colorant structural part obtained by removing n1 hydrogen atoms from a compound represented by Formula (3),

R 3 and R 4 represent a hydrogen atom or a substituent, and
B is the same as B in Formula (2).

4. The resin composition according to claim 1 ,
wherein the resin is at least one kind of a polystyrene resin, a cellulose acylate resin, an acrylic resin, or a cycloolefin resin.

5. A film comprising:
the resin composition according to claim 1 .

6. An optical filter comprising:
the resin composition according to claim 1 .

7. An image display device comprising:
the optical filter according to claim 6 .

8. A solid-state imaging element comprising:
the optical filter according to claim 6 .

9. A compound represented by Formula (1A),

in Formula (1A), Dye 1 represents a colorant structural part obtained by removing n1 hydrogen atoms from a compound represented by Formula (2A),

in Formula (2A), A represents a heterocyclic group and B represents an aryl group, a heterocyclic group, or —CH=G, in which G represents a heterocyclic group,
Q 1 represents a structural part satisfying the following (i) and (ii),
(i) an energy level difference between a highest occupied molecular orbital and a lowest unoccupied molecular orbital is 2.9 eV or more,
(ii) an absolute value of the energy level of the lowest unoccupied molecular orbital is lower than an absolute value of an energy level of a lowest unoccupied molecular orbital of Dye, or an absolute value of the energy level of the highest occupied molecular orbital is lower than an absolute value of an energy level of a highest occupied molecular orbital of Dye,
L 1 represents a divalent linking group in which a linking part with Q 1 is composed of an alkylene group, or a divalent linking group which is directly bonded to a ring-constituting carbon atom of an aliphatic ring included in Q 1 , and
n1 represents an integer of 1 to 4,
wherein Dye 1 is a structure up to a portion where a conjugated structure is interrupted due to that the structure of Formula (2A) is linked to L 1 , and
wherein Q 1 represents a structural part obtained by removing one hydrogen atom from a compound represented by any one of Formulae (5) to (13),

R 5 to R 20 , R 22 , R 23 , R 25 to R 27 , R 30 to R 36 , R 37a to R 37e , and R 38 to R 42 represent a hydrogen atom or a substituent,
R 21 and R 24 represent a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group, provided that, in a case where R 21 and R 24 are hydrogen atoms, Q 1 is bonded to the linking group L 1 at a nitrogen atom position from which the hydrogen atom has been removed,
X 1 represents an oxygen atom, a sulfur atom, or a carbon atom, and
n represents an integer of 1 to 3.

10. The compound according to claim 9 ,
wherein Dye 1 represents a colorant structural part obtained by removing n1 hydrogen atoms from a compound represented by Formula (3),

R 3 and R 4 represent a hydrogen atom or a substituent, and
B is the same as B in Formula (2A).

Assignees

• Fujifilm Corp

Inventors

• Sasaki Daisuke
• Hara Akihiro
• Kodama Kunihiko
• Fukagawa Nobutaka
• Naito Yu
• Kuwahara Hiroki

Classifications

• H10F39/12

  Image sensors · CPC title

• H10F39/8053

  Colour filters · CPC title

• C09B57/007 Primary

  Squaraine dyes · CPC title

• C08K5/3445

  Five-membered rings · CPC title

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title