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公开(公告)号：US20240151879A1
公开(公告)日：2024-05-09
申请号：US18405213
申请日：2024-01-05
Applicant: TOPPAN INC.
Inventor： Kai FUTAMATA , Yoshiko ISHIMARU , Shinya ISHIKAWA
IPC: G02B1/11
CPC classification number: G02B1/11
Abstract: An optical film comprises: a transparent substrate having an ultraviolet blocking rate of 85% or more according to JIS L 1925; one or more functional layers formed on a first surface side of the transparent substrate; and a colored layer that is formed on a second surface side of the transparent substrate that is configured by one or more layers containing a colored material. The colored layer contains a first colorant that has a maximum absorption wavelength in a range of 470 nm or more and 530 nm or less, an absorption spectrum thereof having a half-width of 15 nm or more and 45 nm or less, and a second colorant that has a maximum absorption wavelength in a range of 560 nm or more and 620 nm or less, an absorption spectrum thereof having a half-width of 15 nm or more and 55 nm or less.
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公开(公告)号：US20240004113A1
公开(公告)日：2024-01-04
申请号：US18244891
申请日：2023-09-11
Applicant: TOPPAN INC.
Inventor： Shinya ISHIKAWA , Yoshiko ISHIMARU , Kai FUTAMATA
CPC classification number: G02B5/208 , C09J11/06 , G02B5/223 , G03F7/0007 , C09J2301/312 , C09J2301/408
Abstract: An adhesive sheet includes a colored adhesive layer of one or more layers comprising a first colorant with the maximum absorption wavelength in the range of 470 nm or more and 530 nm or less and the half width of absorption spectrum is 15 nm or more and 45 nm or less, a second colorant with the maximum absorption wavelength in the range of 560 nm or more and 620 nm or less and the half width of absorption spectrum thereof is 15 nm or more and 55 nm or less, and a third colorant with the wavelength range of 400 nm or more and 780 nm or less, the wavelength with a lowest transmittance is in the range of 650 nm or more and 780 nm or less; and a UV absorbing adhesive layer on the surface of the colored adhesive layer with a UV shielding rate of 85%.
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公开(公告)号：US20220381973A1
公开(公告)日：2022-12-01
申请号：US17881902
申请日：2022-08-05
Applicant: TOPPAN INC.
Inventor： Yukari ODA , Masashi KAWASHITA , Yoshiko ISHIMARU , Azusa YAMAGISHI
Abstract: An optical device includes a concave-convex structure layer having a concavo-convex structure on a surface thereof, the concavo-convex structure formed of a plurality of convexities or a plurality of concavities which are arranged with a sub-wavelength period, a high refractive index layer made of a material having a refractive index higher than that of the concavo-convex structure layer and located on the concavo-convex structure while having a surface conforming to the concavo-convex structure, and a low refractive index layer made of a material having a refractive index lower than that of the high refractive index layer and located on the high refractive index layer. The high refractive layer includes first grating high refractive index portions located at a bottom of the concavo-convex structure to form a first sub-wavelength grating, and second grating high refractive index portions located at a top of the concavo-convex structure to form a second sub-wavelength grating.
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公开(公告)号：US20240199889A1
公开(公告)日：2024-06-20
申请号：US18440204
申请日：2024-02-13
Applicant: TOPPAN INC.
Inventor： Kai FUTAMATA , Yoshiko ISHIMARU , Takenori GODA , Shigeki FURUKAWA , Hanae TAGAMI
Abstract: A composition for forming a colored layer includes a dye, an ionizing radiation-curable resin, a photoinitiator, and a solvent. The dye contains a first colorant and a second colorant, the first colorant has a wavelength of maximum absorption in a range of 470 nm to 530 nm, and an absorption spectrum with a full width at half maximum of 15 nm to 45 nm, the second colorant has a wavelength of maximum absorption in a range of 560 nm to 620 nm, and an absorption spectrum with a full width at half maximum of 15 nm to 55 nm, and the ionizing radiation-curable resin contains a resin having an amine structure.
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公开(公告)号：US20230358932A1
公开(公告)日：2023-11-09
申请号：US18354568
申请日：2023-07-18
Applicant: TOPPAN INC.
Inventor： Yoshiko ISHIMARU , Kai FUTAMATA
CPC classification number: G02B5/208 , B32B7/023 , G02B1/12 , G02B5/28 , B32B2307/4026 , B32B2551/00
Abstract: An optical film includes a transparent substrate having opposite first and second surfaces, a colored layer formed to face the first surface of the substrate, and an optical function layer. A colorant in the colored layer contains at least one of a first coloring material having a maximum absorption wavelength in a range of 470 to 530 nm and an absorption spectral half width of 15 to 45 nm, a second coloring material having a maximum absorption wavelength in a range of 560 to 620 nm and an absorption spectral half width of 15 to 55 nm, and a third coloring material having the lowest transmittance in a wavelength range of 400 to 800 nm is in a range of 650 to 800 nm. A transmittance in one of the absorption wavelength bands of the colorant is 1% or more and less than 50%, and ΔE * ab.
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Patent Agency Ranking
公开(公告)号：US20230358930A1
公开(公告)日：2023-11-09
申请号：US18223420
申请日：2023-07-18
Applicant: TOPPAN INC.
Inventor： Yoshiko ISHIMARU , Kai FUTAMATA
CPC classification number: G02B5/208 , G02B1/115 , G02B1/14 , G02B5/28 , B32B7/023 , B32B2307/4026 , B32B2551/00
Abstract: An optical film includes a substrate, an optical function layer, and a colored layer. The substrate has an ultraviolet shielding rate of 85% or higher according to JIS L 1925. The optical function layer is formed on a first surface side of the substrate. The colored layer is formed on a second surface side. A difference ΔE*ab between chromaticities before and after a lightfastness test is 5 or less. A first coloring material includes a maximum absorption wavelength of 470 to 530 nm and an absorption spectrum half width of 15 to 45 nm. A second coloring material includes a maximum absorption wavelength of 560 to 620 nm and an absorption spectrum half width of 15 to 55 nm. A third coloring material has a wavelength having the lowest transmittance in a wavelength range of 400 to 800 nm is in a range of 650 to 800 nm.
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公开(公告)号：US20230422568A1
公开(公告)日：2023-12-28
申请号：US18244897
申请日：2023-09-11
Applicant: TOPPAN INC.
Inventor： Shinya ISHIKAWA , Yoshiko ISHIMARU , Kai FUTAMATA
CPC classification number: H10K59/32 , H10K59/38 , H10K59/1201 , G02B1/18 , G02B1/16 , G02B1/12 , H10K2102/302
Abstract: An optical film includes a transparent substrate, a colored layer including one or more layers that contain a first colorant material with a maximum absorption wavelength of 470 nm or more and 530 nm or less and a half width of an absorption spectrum of 15 nm or more and 45 nm or less, a second colorant material with a maximum absorption wavelength of 560 nm or more and 620 nm or less and a half width of an absorption spectrum of 15 nm or more and 55 nm or less, and a third colorant material with a wavelength range of 400 nm to 780 nm, a wavelength with a transmittance in a range of 650 nm or more and 780 nm or less, and one or more functional layers facing a surface of the colored layer opposite the transparent substrate, with an ultraviolet absorption layer.
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公开(公告)号：US20230367051A1
公开(公告)日：2023-11-16
申请号：US18221646
申请日：2023-07-13
Applicant: TOPPAN INC. , TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.
Inventor： Yuri YOKOYAMA , Yoshiko ISHIMARU , Koichi MINATO , Rui INOUE , Keisuke OGATA
Abstract: Provided are an optical film that can reduce reflectance, increase luminance, and reduce thickness of a display device, a display device using the optical film, and a composition for forming ultraviolet absorbing layer used for producing the optical film. An optical film characterized in that having a transparent substrate, a colored layer laminated on one side of the transparent substrate and containing a dye, and a functional layer laminated on the colored layer, in which the dye contains a first coloring material having a maximum absorption wavelength within the range of 470 to 530 nm, and a second coloring material having a maximum absorption wavelength in the range of 560 to 620 nm, and the functional layer includes an ultraviolet absorbing layer having an ultraviolet shielding rate of 85% or more, and the pencil hardness of the surface under a load of 500 g is H or higher.
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9.发明公开公开(公告)号：US20230357603A1
公开(公告)日：2023-11-09
申请号：US18222081
申请日：2023-07-14
Applicant: TOPPAN INC. , TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.
Inventor： Yuri YOKOYAMA , Yoshiko ISHIMARU , Koichi MINATO , Rui INOUE , Keisuke OGATA
Abstract: Provided are an adhesive sheet that can reduce reflectance, increase luminance and reduce thickness of a display device, a display device using the adhesive sheet, and a composition for forming adhesive layer used for producing the adhesive sheet. An adhesive sheet comprising a first adhesive layer containing an adhesive and a dye, and an ultraviolet absorbing layer laminated on one surface side of the first adhesive layer, wherein the dye contains a first coloring material having a maximum absorption wavelength in the range of 470 to 530 nm and a half width of the absorption spectrum of 15 to 45 nm, and a second coloring material having a maximum absorption wavelength in the range of 560 to 620 nm and a half width of the absorption spectrum of 15 to 55 nm, and the ultraviolet absorbing layer has an ultraviolet shielding rate of 85% or more according to JIS L 1925.
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公开(公告)号：US20230422567A1
公开(公告)日：2023-12-28
申请号：US18244895
申请日：2023-09-11
Applicant: TOPPAN INC.
Inventor： Shinya ISHIKAWA , Yoshiko ISHIMARU , Kai FUTAMATA
CPC classification number: H10K59/32 , H10K59/38 , H10K59/1201 , G02B1/18 , G02B1/16 , H10K2102/302
Abstract: An optical film includes a transparent substrate in which an ultraviolet shielding rate is 85% or more, and a colored layer containing a colorant. The colored layer includes one or more layers containing a first colorant material in which a maximum absorption wavelength is 470 nm or more and 530 nm or less and a half width of an absorption spectrum thereof is 15 nm or more and 45 nm or less, a second colorant material in which a maximum absorption wavelength is 560 nm or more and 620 nm or less and a half width of an absorption spectrum thereof is 15 nm or more and 55 nm or less, and a third colorant material in which a wavelength in a wavelength range of 400 nm to 780 nm at which a transmittance is lowest is in a range of 650 nm or more and 780 nm or less.
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