Patents by Inventor Tsubasa SAKANO
Tsubasa SAKANO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11874481Abstract: To provide a head-mounted display that can obtain a higher sense of immersion without sensing coloring by diffusing and transmitting light from an organic electroluminescence display panel by an anisotropic optical film to reduce the visibility of a black matrix (BM). The head-mounted display is provided with an anisotropic optical film on the viewing side with respect to a color filter or an RGB light emitting layer in an organic electroluminescence display panel, said anisotropic optical film having a linear transmittance that varies depending on an incident light angle. The head-mounted display is characterized in that: the anisotropic optical film includes at least a single or a plurality of anisotropic light diffusion layers; and the anisotropic light diffusion layers have a matrix region and a plurality of pillar regions having refractive indexes different from that of the matrix region.Type: GrantFiled: March 22, 2019Date of Patent: January 16, 2024Assignee: TOMOEGAWA CO., LTD.Inventors: Tsubasa Sakano, Masahide Sugiyama
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Patent number: 11209587Abstract: According to the present invention, a light guiding laminate including a light guide plate with good visibility and an anisotropic optical film, and a planar light source device including the light guiding laminate and a light source are provided.Type: GrantFiled: March 30, 2018Date of Patent: December 28, 2021Assignee: Tomoegawa Co., Ltd.Inventors: Masahide Sugiyama, Masao Kato, Tsubasa Sakano, Shogo Suga
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Patent number: 11126002Abstract: This head-mounted display is provided with, closer to the viewing side than a color filter having a black matrix between pixels in a liquid crystal display panel (160), an anisotropic optical film (150), the linear transmittance of which changes according to the angle of incident light, wherein the anisotropic optical film (150) includes a single-layered or multilayered anisotropic light diffusion layer, on at least on one surface of the anisotropic light diffusion layer, surface asperities having an arithmetic average roughness Ra of 0.10 ?m or less, which is measured in accordance with JIS B0601-2001, are formed, the anisotropic light diffusion layer has a matrix region and a plurality of pillar regions having a refractive index different from that of the matrix region, and the visibility of the black matrix is lowered by the anisotropic optical film (150), thereby making it possible to obtain a higher sense of immersion without feeling coloring.Type: GrantFiled: March 22, 2019Date of Patent: September 21, 2021Assignees: Tomoegawa Co., Ltd., Japan Display Inc.Inventors: Tsubasa Sakano, Masahide Sugiyama, Tetsuya Ooshima, Ryotaro Kogure, Yukihiro Nakamura
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Publication number: 20210263200Abstract: To provide a head-mounted display that can obtain a higher sense of immersion without sensing coloring by diffusing and transmitting light from an organic electroluminescence display panel by an anisotropic optical film to reduce the visibility of a black matrix (BM). The head-mounted display is provided with an anisotropic optical film on the viewing side with respect to a color filter or an RGB light emitting layer in an organic electroluminescence display panel, said anisotropic optical film having a linear transmittance that varies depending on an incident light angle. The head-mounted display is characterized in that: the anisotropic optical film includes at least a single or a plurality of anisotropic light diffusion layers; and the anisotropic light diffusion layers have a matrix region and a plurality of pillar regions having refractive indexes different from that of the matrix region.Type: ApplicationFiled: March 22, 2019Publication date: August 26, 2021Inventors: Tsubasa SAKANO, Masahide SUGIYAMA
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Publication number: 20210247609Abstract: This head-mounted display is provided with, closer to the viewing side than a color filter having a black matrix between pixels in a liquid crystal display panel (160), an anisotropic optical film (150), the linear transmittance of which changes according to the angle of incident light, wherein the anisotropic optical film (150) includes a single-layered or multilayered anisotropic light diffusion layer, on at least on one surface of the anisotropic light diffusion layer, surface asperities having an arithmetic average roughness Ra of 0.10 ?m or less, which is measured in accordance with JIS B0601-2001, are formed, the anisotropic light diffusion layer has a matrix region and a plurality of pillar regions having a refractive index different from that of the matrix region, and the visibility of the black matrix is lowered by the anisotropic optical film (150), thereby making it possible to obtain a higher sense of immersion without feeling coloring.Type: ApplicationFiled: March 22, 2019Publication date: August 12, 2021Inventors: Tsubasa SAKANO, Masahide SUGIYAMA, Tetsuya OOSHIMA, Ryotaro KOGURE, Yukihiro NAKAMURA
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Publication number: 20200363582Abstract: A sealing member for a light guide plate which has sufficient adhesive strength with a light guide member, suppresses embedding of the light guide member into concave-shaped portions, and provides high smoothness to a lid face of the concave-shaped portions, a light guide plate using the sealing member for a light guide plate, and a lighting device or a display device using the light guide plate are provided.Type: ApplicationFiled: March 30, 2018Publication date: November 19, 2020Inventors: Shogo SUGA, Masao KATO, Tsubasa SAKANO, Masahide SUGIYAMA
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Patent number: 10670788Abstract: Provided is a light diffusion film laminate for a reflective display device that can improve the reflection luminance at a predetermined observation position (for example, the front direction of the screen) without reducing the visibility not only from the predetermined observation position (for example, the front direction of the screen) but also from a position away from a predetermined observation position (for example, an oblique direction deviated from the front of the screen) and a reflective display device including the light diffusion film laminate. A light diffusion film laminate for a reflective display device has optical diffusibility that changes depending on an incident angle of light, and at least transmits reflected light occurring when incident light is reflected by a reflective layer.Type: GrantFiled: July 24, 2017Date of Patent: June 2, 2020Assignee: TOMOEGAWA CO., LTD.Inventors: Tsubasa Sakano, Masahide Sugiyama
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Publication number: 20200033525Abstract: According to the present invention, a light guiding laminate including a light guide plate with good visibility and an anisotropic optical film, and a planar light source device including the light guiding laminate and a light source are provided.Type: ApplicationFiled: March 30, 2018Publication date: January 30, 2020Inventors: Masahide SUGIYAMA, Masao KATO, Tsubasa SAKANO, Shogo SUGA
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Publication number: 20200026120Abstract: A display device including an anti-glare film containing: at least an anti-glare layer 1 in which a first surface la is an uneven surface; and an anisotropic light diffusion layer 3 provided on a second surface 1b side of the anti-glare layer 1, wherein the anisotropic light diffusion layer 3 includes a matrix region and a plurality of pillar regions having refractive indices different from that of the matrix region, the pillar regions extend from one surface side toward the other surface side of the anisotropic light diffusion layer 3, and an average height of the pillar regions in a thickness direction of the anisotropic light diffusion layer 3 is 80% or more of a thickness of the anisotropic light diffusion layer 3 suppresses the occurrence of scintillation and the decrease in front contrast.Type: ApplicationFiled: March 15, 2018Publication date: January 23, 2020Inventors: Masao Kato, Masahide Sugiyama, Tsubasa Sakano
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Publication number: 20190204488Abstract: Provided is a light diffusion film laminate for a reflective display device that can improve the reflection luminance at a predetermined observation position (for example, the front direction of the screen) without reducing the visibility not only from the predetermined observation position (for example, the front direction of the screen) but also from a position away from a predetermined observation position (for example, an oblique direction deviated from the front of the screen) and a reflective display device including the light diffusion film laminate. A light diffusion film laminate for a reflective display device has optical diffusibility that changes depending on an incident angle of light, and at least transmits reflected light occurring when incident light is reflected by a reflective layer.Type: ApplicationFiled: July 24, 2017Publication date: July 4, 2019Inventors: Tsubasa SAKANO, Masahide SUGIYAMA
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Patent number: 10330831Abstract: Provided is an anisotropic optical film, which can, while keeping excellent display characteristics (e.g., brightness and contrast) in the direction of a viewing angle, suppress decreased display characteristics in the other directions, when the anisotropic optical film is used as a diffusion film of a display panel.Type: GrantFiled: January 16, 2015Date of Patent: June 25, 2019Assignee: Tomoegawa Co., Ltd.Inventors: Masahide Sugiyama, Hiroto Katagiri, Hiroyuki Abe, Tsubasa Sakano
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Patent number: 9989678Abstract: In an anisotropic optical film including two or more anisotropic light diffusion layers where a linear transmittance varies depending on an incident light angle, each of the anisotropic light diffusion layers has a matrix region and a plurality of pillar regions that differ in refractive index from the matrix region, at least two types of anisotropic light diffusion layers (a) and (b) that differ in aspect ratio between a short diameter and a long diameter at a cross section perpendicular to an orientation direction of the pillar regions are used as the anisotropic light diffusion layers, the aspect ratio between the short diameter and the long diameter in the pillar regions is made less than 2 in the anisotropic light diffusion layer (a), and the aspect ratio between the short diameter and the long diameter in the pillar regions is made 2 or more and 20 or less in the anisotropic light diffusion layer (b).Type: GrantFiled: March 17, 2015Date of Patent: June 5, 2018Assignee: Tomoegawa Co., Ltd.Inventors: Tsubasa Sakano, Masahide Sugiyama
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Publication number: 20170192137Abstract: In an anisotropic optical film including two or more anisotropic light diffusion layers where a linear transmittance varies depending on an incident light angle, each of the anisotropic light diffusion layers has a matrix region and a plurality of pillar regions that differ in refractive index from the matrix region, at least two types of anisotropic light diffusion layers (a) and (b) that differ in aspect ratio between a short diameter and a long diameter at a cross section perpendicular to an orientation direction of the pillar regions are used as the anisotropic light diffusion layers, the aspect ratio between the short diameter and the long diameter in the pillar regions is made less than 2 in the anisotropic light diffusion layer (a), and the aspect ratio between the short diameter and the long diameter in the pillar regions is made 2 or more and 20 or less in the anisotropic light diffusion layer (b).Type: ApplicationFiled: March 17, 2015Publication date: July 6, 2017Inventors: Tsubasa SAKANO, Masahide SUGIYAMA
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Publication number: 20170003422Abstract: Provided is an anisotropic optical film, which can, while keeping excellent display characteristics (e.g., brightness and contrast) in the direction of a viewing angle, suppress decreased display characteristics in the other directions, when the anisotropic optical film is used as a diffusion film of a display panel.Type: ApplicationFiled: January 16, 2015Publication date: January 5, 2017Inventors: Masahide SUGIYAMA, Hiroto KATAGIRI, Hiroyuki ABE, Tsubasa SAKANO