公开(公告)号：US11926750B2

公开(公告)日：2024-03-12

申请号：US16761943

申请日：2018-10-25

Applicant: DIC Corporation

Inventor： Takeo Kizaki ,  Minoru Tabuchi ,  Mariko Toshimitsu ,  Sunao Yoshihara ,  Ikuro Kiyoto

IPC: C09D11/037 ,  C09D11/107 ,  C09D11/322 ,  C09D11/38 ,  G02B5/22

CPC classification number: C09D11/322 ,  C09D11/037 ,  C09D11/107 ,  C09D11/38 ,  G02B5/223

Abstract: There is provided an ink composition that can form a color filter pixel unit with high external quantum efficiency. An ink composition containing light-emitting nanocrystal particles, light-diffusing particles, and at least two monomers with an ethylenically unsaturated group, wherein the at least two monomers include two monomers with Hansen solubility parameters δd, δp, and δh that satisfy the following conditions: 16.0 MPa0.5≤δd

公开(公告)号：US20180095205A1

公开(公告)日：2018-04-05

申请号：US15564892

申请日：2016-04-05

Applicant: DIC Corporation

Inventor： Shogo Yamada ,  Ikuro Kiyoto

IPC: G02B5/22 ,  C09B47/04 ,  C09B67/00 ,  C09B67/12 ,  C09B67/04

CPC classification number: G02B5/223 ,  C09B47/04 ,  C09B67/0002 ,  C09B67/0016 ,  C09B67/0032

Abstract: Provided is an organic pigment composition for color filters, which can be used preferably for a color filter that allows to produce a liquid crystal display device which has excellent heat resistance, a brighter display screen, and accordingly higher brightness; a method for producing the same; and a color filter which includes the organic pigment composition for color filters. The color filter has higher heat resistance by using the organic pigment composition for color filters which includes a phthalocyanine pigment and a pigment derivative in which the ratio of a multi-substituted phthalimide alkyl group to the whole amount of the pigment derivative is limited.

公开(公告)号：US20200224047A1

公开(公告)日：2020-07-16

申请号：US16629128

申请日：2018-07-19

Applicant: DIC CORPORATION

Inventor： Sunao Yoshihara ,  Takayuki Miki ,  Hirotomo Sasaki ,  Ikuro Kiyoto ,  Minoru Tabuchi

IPC: C09D11/322 ,  C09D11/38 ,  G02B5/20

Abstract: The present invention provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.5 to 7.0. The present invention also provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.0 to 6.5, and the ink composition has a water (H2O) content of 90 ppm or less measured with a Karl Fischer moisture meter. The present invention also provides a light conversion layer including a plurality of pixel units, wherein the plurality of pixel units include a pixel unit containing a cured product of the ink composition, and the light conversion layer is formed of the cured product of the ink composition. The present invention also provides a color filter including the light conversion layer.

公开(公告)号：US10247863B2

公开(公告)日：2019-04-02

申请号：US15564892

申请日：2016-04-05

Applicant: DIC Corporation

Inventor： Shogo Yamada ,  Ikuro Kiyoto

IPC: C09B47/04 ,  C09B47/12 ,  C09B67/04 ,  C09B67/16 ,  C09B67/20 ,  C09B67/50 ,  G02B5/20 ,  G02B5/22 ,  C09B67/12 ,  C09B67/00

Abstract: Provided is an organic pigment composition for color filters, which can be used preferably for a color filter that allows to produce a liquid crystal display device which has excellent heat resistance, a brighter display screen, and accordingly higher brightness; a method for producing the same; and a color filter which includes the organic pigment composition for color filters. The color filter has higher heat resistance by using the organic pigment composition for color filters which includes a phthalocyanine pigment and a pigment derivative in which the ratio of a multi-substituted phthalimide alkyl group to the whole amount of the pigment derivative is limited.

公开(公告)号：US11618833B2

公开(公告)日：2023-04-04

申请号：US16629128

申请日：2018-07-19

Applicant: DIC CORPORATION

Inventor： Sunao Yoshihara ,  Takayuki Miki ,  Hirotomo Sasaki ,  Ikuro Kiyoto ,  Minoru Tabuchi

IPC: C09D11/322 ,  C09D11/38 ,  G02B5/20 ,  C09D11/32 ,  C09D11/101

Abstract: The present invention provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.5 to 7.0. The present invention also provides an ink composition containing light-emitting nanocrystal particles and a photopolymerizable compound, wherein the photopolymerizable compound has a Log P value in the range of −1.0 to 6.5, and the ink composition has a water (H2O) content of 90 ppm or less measured with a Karl Fischer moisture meter. The present invention also provides a light conversion layer including a plurality of pixel units, wherein the plurality of pixel units include a pixel unit containing a cured product of the ink composition, and the light conversion layer is formed of the cured product of the ink composition. The present invention also provides a color filter including the light conversion layer.

公开(公告)号：US20220056292A1

公开(公告)日：2022-02-24

申请号：US17299519

申请日：2019-12-23

Applicant: DIC Corporation

Inventor： Eiji Otsuki ,  Mariko Toshimitsu ,  Masahiro Kobayashi ,  Minoru Tabuchi ,  Takayuki Miki ,  Ikuro Kiyoto

IPC: C09D11/38 ,  G02B5/22 ,  G02B1/04

Abstract: An ink composition that contains light-emitting nanocrystalline particles, a photopolymerizable component containing at least one photopolymerizable compound and having a Hansen solubility parameter δp of 3.0 MPa0.5 or more, and a phosphite compound with a partial structure represented by the following formula (1). [In the formula (1), X1 to X3 independently denote an oxygen atom or a sulfur atom, R1 denotes an alkyl group, and * denotes a bonding arm.]

公开(公告)号：US20210009826A1

公开(公告)日：2021-01-14

申请号：US16761943

申请日：2018-10-25

Applicant: DIC Corporation

Inventor： Takeo Kizaki ,  Minoru Tabuchi ,  Mariko Toshimitsu ,  Sunao Yoshihara ,  Ikuro Kiyoto

IPC: C09D11/322 ,  C09D11/107 ,  C09D11/037 ,  C09D11/38 ,  G02B5/22

Abstract: There is provided an ink composition that can form a color filter pixel unit with high external quantum efficiency. An ink composition containing light-emitting nanocrystal particles, light-diffusing particles, and at least two monomers with an ethylenically unsaturated group, wherein the at least two monomers include two monomers with Hansen solubility parameters δd, δp, and δh that satisfy the following conditions: 16.0 MPa0.5≤δd