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公开(公告)号：US20230128331A1
公开(公告)日：2023-04-27
申请号：US17915698
申请日：2021-03-26
Applicant: NITTO DENKO CORPORATION
Inventor： Hiroyuki Takemoto , Hironori Yaginuma , Masahiro Yaegashi
IPC: G02F1/13363 , G02F1/1335 , G02F1/13
Abstract: A peeking prevention system has: a display device having, on a front surface of a display screen, a first polarization layer that has a first absorption axis parallel to a first direction; and a room partition that partitions a space in which a display is provided by the display device from a surrounding space, the room partition having a translucent part that makes it possible to see into the space, the translucent part including a transparent substrate and a second polarization layer that is positioned on the space side of the transparent substrate and that has a second absorption axis parallel to a second direction, wherein: the system furthermore has a phase contrast film that is positioned on the front surface of the first polarization layer; the phase contrast layer has a delay axis parallel to a third direction; and transparency is reduced when the display screen is viewed.
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公开(公告)号：US20180188430A1
公开(公告)日：2018-07-05
申请号：US15739531
申请日：2016-06-17
Applicant: NITTO DENKO CORPORATION
Inventor： Shinobu Nagano , Masahiro Yaegashi
IPC: G02B5/30 , G02F1/1335 , G02B1/10 , G02B1/04
CPC classification number: G02B5/3025 , G02B1/04 , G02B1/10 , G02B5/30 , G02F1/133528 , G02F2001/133538 , H01L51/5293
Abstract: Provided is a polarizer having a non-polarization portion with reduced shape unevenness. The polarizer of the present invention is a polarizer having a non-polarization portion, in which the non-polarization portion has a shape matching degree of 0.05 or less. In such polarizer, the number of portions where the shape of the non-polarization portion is distorted is small. Accordingly, when the non-polarization portion of the polarizer is used as, for example, a portion corresponding to a camera portion of an image display apparatus, alignment processability is improved and hence the alignment of the camera can be satisfactorily performed.
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公开(公告)号：US20180173050A1
公开(公告)日：2018-06-21
申请号：US15735264
申请日：2016-06-20
Applicant: NITTO DENKO CORPORATION
Inventor： Masahiro Yaegashi , Shinobu Nagano , Shusaku Goto , Daisuke Ogomi , Yuki Nakano
IPC: G02F1/1335 , G02B5/30 , H01L51/50 , H05B33/02
CPC classification number: G02F1/133528 , G02B5/30 , G02B5/3033 , H01L51/50 , H05B33/02
Abstract: There is provided a polarizer having a non-polarization portion that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, the polarizer being excellent in dimensional stability and external appearance of the non-polarization portion. A polarizer according to an embodiment of the present invention includes a resin film containing a dichromatic substance, wherein: the polarizer has a non-polarization portion at a predetermined position; and the non-polarization portion includes a thin-walled portion thinner than another portion of the resin film.
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公开(公告)号：US20170052299A1
公开(公告)日：2017-02-23
申请号：US15306316
申请日：2015-04-23
Applicant: NITTO DENKO CORPORATION
Inventor： Daisuke Ogomi , Yuji Saiki , Masahiro Yaegashi , Kota Nakai , Yuki Nakano
IPC: G02B5/30
CPC classification number: G02B5/3025 , B32B27/00 , G02B5/3033
Abstract: There is provided a polarizer that can realize the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A method of producing a polarizer of the present invention includes: bringing a basic solution into contact with a resin film containing a dichromatic substance; and reducing a content of an alkali metal and/or an alkaline earth metal in the resin film in the contact portion.
Abstract translation: 提供了一种可实现诸如图像显示装置的电子设备的多功能化和高功能化的偏振器。 本发明的偏振片的制造方法包括：使碱性溶液与含有二色性物质的树脂膜接触; 并且在接触部分中减少树脂膜中的碱金属和/或碱土金属的含量。
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公开(公告)号：US20170045657A1
公开(公告)日：2017-02-16
申请号：US15306362
申请日：2015-04-23
Applicant: NITTO DENKO CORPORATION
Inventor： Daisuke Ogomi , Yuji Saiki , Masahiro Yaegashi , Kota Nakai , Yuki Nakano
IPC: G02B5/30
Abstract: There is provided a polarizer that can realize the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A polarizer according to an embodiment of the present invention includes a resin film containing a dichromatic substance, wherein the polarizer has a low dichromatic substance concentration portion whose content of the dichromatic substance is relatively low in the resin film. In the polarizer according to an embodiment of the present invention, the low dichromatic substance concentration portion has a content of an alkali metal and/or an alkaline earth metal of 3.6 wt % or less.
Abstract translation: 提供了一种可实现诸如图像显示装置的电子设备的多功能化和高功能化的偏振器。 根据本发明的实施方案的偏振器包括含有二色性物质的树脂膜，其中所述偏振片在树脂膜中二色性物质的含量相对较低的二色性物质浓度低的部分。 在根据本发明的一个实施方案的偏振器中，低二色性物质浓度部分的碱金属和/或碱土金属的含量为3.6重量％以下。
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Patent Agency Ranking
公开(公告)号：US20230333420A1
公开(公告)日：2023-10-19
申请号：US18135313
申请日：2023-04-17
Applicant: NITTO DENKO CORPORATION
Inventor： Yuji Toyota , Masahiro Yaegashi , Saori Yamamoto
IPC: G02F1/13 , G02F1/1335 , G02F1/13357
CPC classification number: G02F1/1323 , G02F1/133528 , G02F1/133606
Abstract: A whiteboard film system includes: a whiteboard film; a plurality of light-emitting devices to emit infrared light onto a surface of the whiteboard film at a viewer's side; and a plurality of photodetection devices to receive the infrared light emitted from the plurality of light-emitting devices, the plurality of photodetection devices being provided so as to at least partly oppose the plurality of light-emitting devices. A whiteboard film includes: a diffuse reflection layer to diffuse-reflect visible light; an absorptive polarizing layer having a first transmission axis that is parallel to a first direction; and a reflective polarizing layer being disposed between the diffuse reflection layer and absorptive polarizing layer and having a second transmission axis that is substantially parallel to the first direction.
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公开(公告)号：US20230234334A1
公开(公告)日：2023-07-27
申请号：US18098219
申请日：2023-01-18
Applicant: NITTO DENKO CORPORATION
Inventor： Yuji Toyota , Masahiro Yaegashi
CPC classification number: B32B7/12 , C09J7/385 , G02B5/3025 , C09J2301/124 , C09J2301/302 , C09J2433/00 , B32B2307/42 , B32B25/08
Abstract: Provided is a polarizing film laminate that is reworkable and excellent in bonding property over a long period of time. The polarizing film laminate includes: a polarizing plate including a polarizer; a first pressure-sensitive adhesive layer; a supporting substrate; and a second pressure-sensitive adhesive layer, which are laminated in the stated order, wherein the second pressure-sensitive adhesive layer surface of the polarizing film laminate has a pressure-sensitive adhesive strength to glass of 1.0 N/25 mm or more at a peel angle of 90° and a peel rate of 300 mm/min.
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公开(公告)号：US20170131451A1
公开(公告)日：2017-05-11
申请号：US15322310
申请日：2015-06-26
Applicant: NITTO DENKO CORPORATION
Inventor： Masahiro Yaegashi , Daisuke Ogomi , Yuki Nakano , Yuji Saiki , Kota Nakai
Abstract: A long polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizer including a long resin film containing a dichromatic substance, the polarizer having non-polarization portions arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, the non-polarization portions including decolored portions formed through partial decoloring.
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公开(公告)号：US20170090085A1
公开(公告)日：2017-03-30
申请号：US15271949
申请日：2016-09-21
Applicant: NITTO DENKO CORPORATION
Inventor： Shusaku Goto , Masahiro Yaegashi
IPC: G02B5/30 , B29D11/00 , C08J7/04 , C09D5/29 , C09D131/04
CPC classification number: G02B5/305 , B29D11/00644 , B29D11/00894 , B29K2029/00 , B29K2105/0032 , C08L2205/025 , C09D5/29 , C09D129/04 , G02B5/3025 , C08K3/01 , C08L29/04
Abstract: There is provided a polarizer that can realize multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A polarizer according to an embodiment of the present invention includes a resin film containing iodine, wherein the polarizer has formed therein a transparent portion having a transmittance higher than that of another portion, and the transparent portion has a single hue (a2+b2)1/2 of less than 1.0, where the a represents an a value of an Lab colorimetric system and the b represents a b value of the Lab colorimetric system.
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公开(公告)号：US11550212B2
公开(公告)日：2023-01-10
申请号：US17047801
申请日：2019-04-03
Applicant: NITTO DENKO CORPORATION
Inventor： Masahiro Yaegashi
IPC: G03B21/604 , E06B9/24 , G02B5/30
Abstract: The room includes: a ceiling; a floor; and a wall having a pair of wall surfaces opposite to each other, and another pair of wall surfaces opposite to each other in a direction intersecting the pair of wall surfaces. One of the pair of wall surfaces and the other pair of wall surfaces has a window. The wall surface opposite to the wall surface having the window has arranged thereon a first screen. An inner side of the window, and a projection-side surface of the first each has arranged thereon a polarizing plate. An absorption axis direction of a polarizer of the polarizing plate of the window, and an absorption axis direction of a polarizer of the polarizing plate of the first screen and/or an absorption axis direction of a polarizer of the polarizing plate of the second screen are substantially perpendicular or parallel to each other.
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