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公开(公告)号：US20220291422A1
公开(公告)日：2022-09-15
申请号：US17754144
申请日：2020-09-23
Applicant: Dexerials Corporation
Inventor： Hiroshi SUGATA , Hiroshi TAZAWA , Shunichi KAJIYA
IPC: G02B1/118
Abstract: Provided is an anti-reflection structure with excellent anti-reflection performance and transparency, and with reduced generation of wrinkles on the surface. The present disclosure is an anti-reflection structure 10 including at least an adhesion layer 20 and an anti-reflection layer 30 formed on the adhesion layer 20 and having fine uneven structures on both sides thereof. The storage elastic modulus E′ of the adhesion layer 20 is equal to or greater than 25 MPa, and fine uneven structures formed on both sides of the anti-reflection layer 30 each have an uneven period P equal to or less than the wavelength of visible light.
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公开(公告)号：US20220003897A1
公开(公告)日：2022-01-06
申请号：US17470339
申请日：2021-09-09
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Hideki TERASHIMA , Yutaka MURAMOTO , Masanao KIKUCHI , Takaaki OTOWA
Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material;
and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.-
13.发明申请公开(公告)号：US20210382205A1
公开(公告)日：2021-12-09
申请号：US17288124
申请日：2019-10-30
Applicant: Dexerials Corporation
Inventor： Hiroshi SUGATA , Hiroshi TAZAWA , Shunichi KAJIYA
Abstract: A laminate includes a thin film structural body and retention films. A first retention film is stacked on one face of the thin film structural body and a second retention film is stacked on another face of the thin film structural body. The thin film structural body has a first fine irregularity structure at a face that is in contact with the first retention film and has a second fine irregularity structure at a face that is in contact with the second retention film. The first retention film has a third fine irregularity structure at a face that is in contact with the thin film structural body. The second retention film has a fourth fine irregularity structure at a face that is in contact with the thin film structural body. The laminate includes a half cut section. The second retention film contains a UV-curable resin.
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公开(公告)号：US20210191024A1
公开(公告)日：2021-06-24
申请号：US16077800
申请日：2017-03-23
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Kyoko SAKURAI , Katsuhiro DOI , Kazuya HAYASHIBE , Naoki HANASHIMA , Naoto KANEKO
Abstract: There is provided a light emitting device that can be used as a light guide plate and has an excellent antireflection function to extraneous light, and an optical body includes: a base material; a macro concave-convex structure that is formed on one surface of the base material and emits internally propagating light that is injected in an inside of the base material from a side surface of the base material, from another surface of the base material; and a micro concave-convex structure formed periodically to follow each of both surfaces of the base material and a surface of the macro concave-convex structure, and having an average period of concavity and convexity of less than or equal to a wavelength of visible light. The surface of the macro concave-convex structure has an inclined surface, and an arrangement of the micro concave-convex structure is a zigzag arrangement.
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公开(公告)号：US20190255742A1
公开(公告)日：2019-08-22
申请号：US16397657
申请日：2019-04-29
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：US20190160768A1
公开(公告)日：2019-05-30
申请号：US16062842
申请日：2016-12-16
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA
Abstract: A method of forming an antireflection optical body includes: an application step of applying a photocurable resin onto one surface side of an adherend; a pressing step of pressing a substrate film having a fine structure body at one surface side against the photocurable resin from an opposite surface side by a light guide; a curing step of curing the photocurable resin by transmitting light through the light guide; and a peeling separation step of releasing the pressing of the substrate film and peeling fixed fine structure body that is fixed to the adherend through the cured photocurable resin substrate film while separating the fixed fine structure body from fine structure body on the substrate film other than at a location fixed through the photocurable resin such that the fixed fine structure body is formed on the adherend as an antireflection optical body.
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公开(公告)号：US20170299778A1
公开(公告)日：2017-10-19
申请号：US15508050
申请日：2015-08-31
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Hideki TERASHIMA , Yutaka MURAMOTO , Masanao KIKUCHI , Takaaki OTOWA
CPC classification number: G02B1/118 , B29C33/42 , B29C59/046 , B29C2059/023 , G02B1/12 , G02B5/0273 , G02F1/133502 , G02F2201/38
Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.
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公开(公告)号：US20220196884A1
公开(公告)日：2022-06-23
申请号：US17691527
申请日：2022-03-10
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Asahiko NOGAMI , Kyoko SAKURAI , Kazuya HAYASHIBE
IPC: G02B1/118
Abstract: There is provided an optical body and a display device that enable wavelength dependence of a reflectance to be reduced and reflection of incident light to be further suppressed, the optical body including: a concave-convex structure formed on a surface of a base material. An average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wavelength belonging to a visible light band. A standard deviation of differences between respective positions of bottom faces of the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of the bottom faces is greater than or equal to 25 nm.
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公开(公告)号：US20210382214A1
公开(公告)日：2021-12-09
申请号：US17286884
申请日：2019-10-23
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA , Hiroshi TAZAWA , Kazuhiko NODA , Kyoko SAKURAI
IPC: G02B5/22
Abstract: Provided is an optical filter having different color correction effects for specific wavelength regions depending on the angle of incident light. The optical filter includes a transmission portion transmitting light and an absorption portion absorbing light between a plane of incidence and a plane of emission, and the volume of the transmission portion is larger than the volume of the absorption portion. For the optical filter, when the transmission spectrum S0 of light incident at 0° and the transmission spectrum S60 of light incident at 60° are superimposed, the transmittance (%) at 60° is lower than the transmittance (%) at 0° by 15% or more for a first wavelength band, and the difference between the transmittance (%) at 60° and the transmittance (%) at 0° is lower by 10% or more less for a second wavelength band.
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公开(公告)号：US20210239882A1
公开(公告)日：2021-08-05
申请号：US16972254
申请日：2019-05-24
Applicant: DEXERIALS CORPORATION
Inventor： Hiroshi SUGATA , Shunichi KAJIYA
Abstract: To form an optical body having a micro concave-convex structure on at least part of an adherend with high accuracy. Provided is an optical laminate including an adherend, a bonding layer formed on at least part of a surface of the adherend, and an optical body bonded to the adherend with the bonding layer. A micro concave-convex structure in which concavities and convexities are arranged at an average cycle less than or equal to a visible light wavelength is formed in at least one surface of the optical body. The bonding layer is provided on the other surface of the optical body. An initial 90° peeling force when peeling the optical body from a transfer body having an inverted concave-convex structure fitted in the micro concave-convex structure of the optical body is less than or equal to 70% of a 90° peeling force between the optical body and the bonding layer.
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