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公开(公告)号：US20210191004A1
公开(公告)日：2021-06-24
申请号：US17119004
申请日：2020-12-11
Applicant: LINTEC CORPORATION
Inventor： Kentaro KUSAMA , Baku KATAGIRI , Tatsuki KURAMOTO
Abstract: A light diffusion control member includes a first light diffusion control layer and a second light diffusion control layer. The first light diffusion control layer and the second light diffusion control layer has a regular internal structure that includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The first light diffusion control layer and the second light diffusion control layer are laminated so that an angle between two respective vectors determined based on the regular internal structure in the first light diffusion control layer and the second light diffusion control layer is more than 0° and 90° or less.
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公开(公告)号：US20180284592A1
公开(公告)日：2018-10-04
申请号：US15895140
申请日：2018-02-13
Applicant: LINTEC Corporation
Inventor： Kentaro KUSAMA , Baku KATAGIRI
IPC: G03B21/62
CPC classification number: G03B21/62
Abstract: Provided is a projection screen that can effectively diffuse incident light coming from a wide range of angles in the transverse direction and the longitudinal direction and can provide a wide viewing angle even if the projection screen is applied to a large-sized screen. Disclosed is a projection screen including a light diffusion control plate, in which when a first direction and a second direction orthogonally intersecting each other are assumed to be on the surface of the light diffusion control plate, and when the incident angle of the light incident to the light diffusion control plate is defined such that an angle parallel to the normal line to the surface of the light diffusion control plate is defined as 0°, in a case in which the luminance of diffused light obtainable when light is incident at an incident angle of 0° is designated as L0; the luminance of diffused light obtainable when light is incident at a predetermined incident angle along the first direction is designated as L1; and the luminance of diffused light obtainable when light is incident at a predetermined incident angle along the second direction is designated as L2, there exist a first direction and a second direction, in which L0, L1, and L2 always satisfy the following relational expressions (1) and (2): L1≥0.25×L0 (1) L2≥0.25×L0 (2)
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公开(公告)号：US20160070035A1
公开(公告)日：2016-03-10
申请号：US14786878
申请日：2014-03-13
Applicant: LINTEC CORPORATION , TOHOKU UNIVERSITY
Inventor： Kentaro KUSAMA , Baku KATAGIRI , Tomoo ORUI , Satoru SHOSHI , Hideo FUJIKAKE , Takahiro ISHINABE
IPC: G02B5/02 , G02F1/1335
CPC classification number: G02B5/0236 , G02B5/02 , G02B5/0242 , G02B5/0257 , G02B5/0268 , G02B5/0278 , G02B5/0294 , G02B6/0051 , G02F1/133504 , G02F1/133606 , G02F2001/133507
Abstract: An optical-diffusion film for display which, particularly when applied to a display device using a collimated backlight as a backlight for the display panel, can efficiently diffuse and emit a highly directional light emitted from the collimated backlight toward the front of the display device as image display light, without allowing straight transmission of the highly directional light, and a display device using the optical-diffusion film for display are provided.Disclosed is a single layered optical-diffusion film having a columnar structure in which plural pillar-shaped objects having a relatively high refractive index are arranged to stand close together in a film thickness direction in a region having a relatively low refractive index, in which the film thickness of the optical-diffusion film has a value within the range of 60 to 700 μm, and the haze value obtainable in the case in which light is made incident in the normal line direction of the film plane has a value of 80% or more.
Abstract translation: 一种用于显示器的光学扩散膜，特别是当应用于使用准直背光作为显示面板的背光的显示装置时，可以有效地将从准直背光源发出的高度定向的光朝向显示装置的前方发射，作为 图像显示光，而不允许高度定向的光的直接传输，并且提供了使用用于显示的光学漫射膜的显示装置。 公开了具有柱状结构的单层光学扩散膜，其中具有相对较高折射率的多个柱状物体被布置成在具有较低折射率的区域中在膜厚度方向上靠近在一起，其中 光扩散膜的膜厚度在60〜700μm的范围内，在膜平面的法线方向入射光的情况下得到的雾度值为80％以上， 更多。
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公开(公告)号：US20210278573A1
公开(公告)日：2021-09-09
申请号：US17193047
申请日：2021-03-05
Applicant: LINTEC CORPORATION
Inventor： Tatsuki KURAMOTO , Kentaro KUSAMA , Baku KATAGIRI
IPC: G02B5/02
Abstract: A laminate used under an environment irradiated with external light includes a light diffusion control film having an internal structure in the film. The internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The laminate further includes an ultraviolet absorbing layer located further on the external light incident side than the light diffusion control film. The light diffusion control film has an indentation elastic modulus of 30 MPa or more as measured at a maximum load of 2 mN by a nanoindentation method.
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公开(公告)号：US20170349790A1
公开(公告)日：2017-12-07
申请号：US15541131
申请日：2015-07-17
Applicant: LINTEC Corporation
Inventor： Masaya TODAKA , Baku KATAGIRI , Kenta TOMIOKA , Tomoo ORUI
CPC classification number: G06F3/044 , C09J7/22 , C09J7/38 , C09J201/00 , C09J2201/606 , C09J2201/622 , C09J2203/318 , C09J2451/00 , G06F2203/04103
Abstract: Provided are a surface protection film which would stably display an image, and would stably attain a mirror state, and which would be stably operated without inhibiting display operability.Disclosed is a surface protection film including a resin film and a pressure-sensitive adhesive layer, in which the relative permittivity of the resin film is of 1.0 to 5.0, the reflectance is set to a value within the range of 20% to 80%, and the transmittance for light is of 20% to 80%.
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Patent Agency Ranking
公开(公告)号：US20160033692A1
公开(公告)日：2016-02-04
申请号：US14774678
申请日：2014-02-04
Applicant: LINTEC CORPORATION
Inventor： Kentaro KUSAMA , Baku KATAGIRI , Tomoo ORUI , Satoru SHOSHI
IPC: G02B5/02
CPC classification number: G02B5/0236 , C08F283/006 , C08F290/147 , C08J2367/02 , C08J2433/06 , C08J2475/16 , G02B5/0257 , G02B5/0268 , G02B5/0278 , G02B2207/123 , C08F220/30 , C08F2220/301
Abstract: A composition for light diffusion film in which the angle of aperture of diffused light in a light diffusion film obtainable therefrom can be expanded effectively, and a light diffusion film obtainable by the composition for light diffusion film are provided. Disclosed is composition for light diffusion film for obtaining a light diffusion film which has a predetermined internal structure within the film and in which plural regions having a relatively high refractive index are bent at an intermediate point along the film thickness direction, the composition for light diffusion film including a predetermined (meth)acrylic acid ester as component (A); a urethane(meth)acrylate as component (B); a photopolymerization initiator as component (C); and an ultraviolet absorber as component (D), wherein the content of the component (A) is adjusted to a value within a predetermined range relative to 100 parts by weight of the component (B), the content of the component (C) is adjusted to a value within a predetermined range relative to the total amount of the component (A) and the component (B), and the content of the component (D) is adjusted to a predetermined value relative to the total amount of the component (A) and the component (B).
Abstract translation: 可以有效地扩展其中由其获得的光漫射膜中的漫射光的孔径角度的光漫射膜组合物，并且提供通过该光扩散膜组合物获得的光扩散膜。 公开了一种用于获得在膜内具有预定内部结构的光漫射膜的组合物，其中具有相对较高折射率的多个区域沿着膜厚度方向在中间点弯曲，光扩散用组合物 包含预定的（甲基）丙烯酸酯作为组分（A）的膜; 作为组分（B）的氨基甲酸酯（甲基）丙烯酸酯; 作为组分（C）的光聚合引发剂; 和作为成分（D）的紫外线吸收剂，其中组分（A）的含量相对于组分（B）100重量份调节到预定范围内的值，组分（C）的含量为 调整为相对于组分（A）和组分（B）的总量的预定范围内的值，并且将组分（D）的含量相对于组分的总量调节至预定值（ A）和组分（B）。
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公开(公告)号：US20150355390A1
公开(公告)日：2015-12-10
申请号：US14655696
申请日：2013-12-02
Applicant: LINTEC CORPORATION
Inventor： Baku KATAGIRI , Kentaro KUSAMA , Tomoo ORUI
CPC classification number: G02B5/0242 , G02B5/02 , G02B5/0278 , G02B27/095 , G02B27/0988 , G02F1/133504
Abstract: There is provided a light diffusion film capable of diffusing incident light into an elliptical shape with respect to a plane parallel to the light diffusion film, and which has excellent applicability to rectangular displays.According to the present invention, there is provided a light diffusion film for diffusing incident light into an elliptical shape, which contains, inside the film, a structure composed of a plurality of flaky-shaped objects with comparatively high refractive index arranged in multiple rows in a region with comparatively low refractive index along any one arbitrary direction along the film plane. If T50 (μm) is the width of the flaky-shaped objects at a position of 50 μm below the upper end of the flaky-shaped objects in the direction of the thickness of the light diffusion film, and if L50 (μm) is the length of the flaky-shaped objects in the above-mentioned arbitrary one direction, the following relation (1) is satisfied: 0.05≦T50/L50
Abstract translation: 提供了能够将入射光相对于与光漫射膜平行的平面扩散成椭圆形状的光漫射膜，并且对矩形显示器具有优异的适用性。 根据本发明，提供了一种用于将入射光漫射成椭圆形状的光漫射膜，其在膜内包含由多个布置成多行的具有相对较高折射率的片状物体构成的结构 沿着膜平面沿着任意一个任意方向具有较低折射率的区域。 如果T50（μm）是片状物体在光扩散膜的厚度方向以下的薄片状物体的上端以下50μm的位置处的宽度，如果L50（μm）为 在上述任意一个方向上的片状物体的长度，满足以下关系式（1）：0.05＆nlE; T50 / L50 <0.9（1）
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公开(公告)号：US20230266510A1
公开(公告)日：2023-08-24
申请号：US18111171
申请日：2023-02-17
Applicant: LINTEC CORPORATION
Inventor： Hiroki FUKUSHIMA , Tatsuki KURAMOTO , Baku KATAGIRI , Kentaro KUSAMA
CPC classification number: G02B5/0236 , G02B5/003 , B32B7/12 , B32B2250/40
Abstract: A laminate used under an environment irradiated with external light includes a light diffusion control film having an internal structure in the film. The internal structure includes a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The laminate further includes an ultraviolet absorbing layer located further on the external light incident side than the light diffusion control film. The light diffusion control film contains a weakly basic hindered amine-based compound having a carbonate skeleton.
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公开(公告)号：US20220317507A1
公开(公告)日：2022-10-06
申请号：US17708133
申请日：2022-03-30
Applicant: LINTEC CORPORATION
Inventor： Baku KATAGIRI , Kentaro KUSAMA , Tatsuki KURAMOTO
IPC: G02F1/1335 , G02B5/02
Abstract: An external light use type display body including: a light diffusion control layer; a display layer; and a reflective layer. The light diffusion control layer has a regular internal structure that comprises a plurality of regions having a relatively high refractive index in a region having a relatively low refractive index. The reflective layer has a patterned indented structure when at least one cross section cut in a thickness direction is viewed. When the entrance plane is irradiated with light rays that travel on the light ray traveling plane with a predetermined incident angle while being scanned along an intersection line of the light ray traveling plane and the entrance plane, the ratio of the light rays satisfying the following Formula (1) or Formula (2) is 50% or more. θid
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公开(公告)号：US20180284591A1
公开(公告)日：2018-10-04
申请号：US15894316
申请日：2018-02-12
Applicant: LINTEC Corporation
Inventor： Kentaro KUSAMA , Baku KATAGIRI
IPC: G03B21/62
CPC classification number: G03B21/62
Abstract: Provided is a projection screen which can effectively diffuse incident light coming from a wide angle, despite that the number of laminated sheets of a light diffusion control film is small such as 3 to 4 sheets, and can thereby provide a wide viewing angle even if the projection screen is applied to a large-sized screen. Disclosed is a projection screen having a light diffusion control plate, the light diffusion control plate being formed by laminating a plurality of sheets of a light diffusion control film, the light diffusion control film being a light diffusion control film having a single light diffusion layer having a first internal structure and a second internal structure sequentially from the lower part along the film thickness direction, in which the first internal structure is a predetermined louver structure, and the second internal structure is a predetermined columnar structure.
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