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公开(公告)号：US20240045109A1
公开(公告)日：2024-02-08
申请号：US18375123
申请日：2023-09-29
Applicant: DEXERIALS CORPORATION
Inventor： Kazuya HAYASHIBE , Shunichi KAJIYA
IPC: G02B1/118
CPC classification number: G02B1/118 , G02B5/0257
Abstract: There is provided a novel and improved optical body, master, and method for manufacturing an optical body in which the anti-reflection characteristics are improved even further, and fabrication is facilitated, the optical body having a concave-convex structure in which structures having convex shapes or concave shapes are arrayed on an average cycle less than or equal to visible light wavelengths. The structures have an asymmetric shape with respect to any one plane direction perpendicular to a thickness direction of the optical body. Accordingly, the anti-reflection characteristics are improved even further, and fabrication is facilitated.
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公开(公告)号：US20230408733A1
公开(公告)日：2023-12-21
申请号：US18255454
申请日：2021-12-10
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA
Abstract: An optical body that has excellent anti-reflection performance and transmittance for light having wavelengths in the visible light band and good absorption performance for light having wavelengths in the near-infrared band is provided. To solve the above problem, the present disclosure provides an optical body 100 including a base material 20, a dye-containing resin layer 30 formed on the base material 20, and an anti-reflection layer 40 formed on the resin layer 30 and having a micro uneven structure in at least one surface. The average spectral transmittance of the optical body 100 for light in a wavelength range of 420 to 680 nm is 60% or greater, and the minimum spectral transmittance of the optical body 100 for light in a wavelength range of 750 to 1400 nm is less than 60%.
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公开(公告)号：US20210132257A1
公开(公告)日：2021-05-06
申请号：US16760907
申请日：2018-10-26
Applicant: Dexerials Corporation
Inventor： Hiroshi SUGATA , Shunichi KAJIYA
IPC: G02B1/118 , G02F1/1335
Abstract: Provided is a laminate and an anti-reflection structure that can be thinned, are excellent in anti-reflection performance and can keep reflection chromaticity neutral.
In the laminate according to the present disclosure, a part of a light shielding film has a non-light shielding portion without a light shielding film; an anti-reflection structure is formed in the non-light shielding portion through an adhesion layer, and a fine uneven structure has an uneven period that is equal to or less than a wavelength of visible light; and a color difference (ΔE) between a reflected light by the light shielding film and a reflected light by the anti-reflection structure expressed in the formula shown below is equal to or less than 1.5. ΔE=√{square root over ((a1−a2)2+(b1−b2)2)}-
4.发明申请公开(公告)号：US20200217992A1
公开(公告)日：2020-07-09
申请号：US16625255
申请日：2018-06-29
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA , Kazuya HAYASHIBE , Naoki HANASHIMA , Hiroshi SUGATA
Abstract: Provided is a fine concave-convex laminate that is reduced in thickness, has excellent antireflection performance, and can suppress scattering and absorption of short-wavelength light. A fine concave-convex laminate comprises a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order, wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer, the second transparent organic layer has fine concave-convex structures at both surfaces, and a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 μm or less.
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公开(公告)号：US20210206027A1
公开(公告)日：2021-07-08
申请号：US17191213
申请日：2021-03-03
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Hideki TERASHIMA , Yuichi ARISAKA
Abstract: There is provided a new and improved master manufacturing method, master, and optical body enabling more consistent production of optical bodies having a desired haze value, the master manufacturing method including: forming a first micro concave-convex structure, in which an average cycle of concavities and convexities is less than or equal to visible light wavelengths, on a surface of a base material body that includes at least a base material; forming an inorganic resist layer on the first micro concave-convex structure; forming, on the inorganic resist layer, an organic resist layer including an organic resist and filler particles distributed throughout the organic resist; and etching the organic resist layer and the inorganic resist layer to thereby superimpose and form on the surface of the base material a macro concave-convex structure and a second micro concave-convex structure.
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Patent Agency Ranking
公开(公告)号：US20210197505A1
公开(公告)日：2021-07-01
申请号：US17204400
申请日：2021-03-17
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA
Abstract: An optical film includes: a fine recess-protrusion layer having a recess-protrusion pattern, formed on a substrate film; and a fine structure body formed on the fine recess-protrusion layer. The optical film is pressed by a light guide transparent to light against one surface of an adherend applied with a photocurable resin, and light is transmitted through the light guide to cure the photocurable resin with the optical film being pressed by the light guide, thereby forming the fine structure body on the adherend.
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公开(公告)号：US20190160767A1
公开(公告)日：2019-05-30
申请号：US16062818
申请日：2016-12-16
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA
Abstract: A method of forming an antireflection optical body (16a) includes: an application step of applying an adhesive (12) other than an epoxy adhesive onto an adherend (11); a fixing step of pressing a substrate film (15) having a fine structure body (16) at one surface side thereof against the adherend (11) from an opposite surface side to the one surface side to fix the adherend (11) and the fine structure body (16) through the adhesive (12); and a peeling separation step of releasing the pressing of the substrate film (15) and peeling fixed fine structure body (16) from the substrate film (15) while separating the fixed fine structure body (16) from fine structure body (16) on the substrate film (15) other than at a location fixed through the adhesive (12) such that the fixed fine structure body (16) is formed on the adherend (11) as an antireflection optical body (16a).
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公开(公告)号：US20180281239A1
公开(公告)日：2018-10-04
申请号：US15950596
申请日：2018-04-11
Applicant: DEXERIALS CORPORATION
Inventor： Yutaka MURAMOTO , Masanao KIKUCHI , Shunichi KAJIYA , Takaaki OTOWA , Yasuhiro TAKAHASHI
IPC: B29C33/42 , G11B7/26 , B29C33/38 , G03F7/00 , G03F7/24 , B29C35/08 , B29C41/28 , B29C59/04 , C03C15/00 , B29D11/00 , B29L11/00
Abstract: Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.
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公开(公告)号：US20170348943A1
公开(公告)日：2017-12-07
申请号：US15538088
申请日：2015-11-17
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA
CPC classification number: B32B3/30 , B29D11/00288 , B29D11/00788 , B32B7/02 , B32B7/12 , B32B27/08 , B32B37/025 , B32B2305/72 , B32B2307/40 , B32B2309/105 , G02B1/118 , G03F7/0002
Abstract: There is provided a new and improved optical body, optical film adhesive body, and method for manufacturing an optical body, in which a concave-convex structure of an optical film can be protected without the use of a protective film, the optical film can be made thinner, the handling properties can be improved, the occurrence of defects caused by a difference in the refractive index between an adhesive layer and the optical film can be minimized, and the optical film can be applied more firmly to the adherend, the optical body including: an optical film provided with first and second concave-convex structures; and a master film in which an average period of concavities and convexities of the first concave-convex structure is less than or equal to visible light wavelengths, and the master film is provided with a third concave-convex structure which has a reverse shape of the first concave-convex structure.
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公开(公告)号：US20170168198A1
公开(公告)日：2017-06-15
申请号：US15320044
申请日：2015-06-18
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA
CPC classification number: G02B1/118 , B29D11/00288 , B29D11/00365 , B29D11/00442 , B29D11/0073 , B29D11/00788 , B32B3/30 , B32B9/00
Abstract: There is provided a novel, improved optical body, the micro concave-convex structure of which can be protected without the use of a protective film, with which the optical film can be made thinner, and with which it is possible to improve the handling properties; a film adhesive body; and a method for manufacturing an optical body, the optical body including: an optical film, on one surface of which is formed a first micro concave-convex structure in which an average cycle of concavities and convexities is less than or equal to a visible light wavelength; and a master film that covers the first micro concave-convex structure. The master film is provided with a second micro concave-convex structure formed on a surface that faces the first micro concave-convex structure, the second micro concave-convex structure is made of a cured curing resin, and has a reverse shape of the first micro concave-convex structure, and the optical film and the master film are separable from each other.
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