公开(公告)号：US11061176B2

公开(公告)日：2021-07-13

申请号：US16801670

申请日：2020-02-26

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Ogomi ,  Yuji Saiki ,  Masahiro Yaegashi ,  Kota Nakai ,  Yuki Nakano

IPC: G02B5/30 ,  G02F1/1335 ,  H01L51/52

Abstract: A polarizer that can realize the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A polarizer including a resin film containing a dichroic substance, wherein the polarizer has a low dichroic substance concentration portion whose content of the dichroic substance is relatively low in the resin film. In the polarizer, the low dichroic substance concentration portion has a content of an alkali metal and/or an alkaline earth metal of 3.6 wt % or less.

公开(公告)号：US09658366B2

公开(公告)日：2017-05-23

申请号：US14425760

申请日：2013-10-11

Applicant: NITTO DENKO CORPORATION

Inventor： Shusaku Goto ,  Daisuke Ogomi ,  Yuki Nakano ,  Muniridin Yasen ,  Osamu Kaneko

IPC: G02B1/08 ,  G02B5/30 ,  G02F1/1335 ,  G02B1/111

CPC classification number: G02B1/08 ,  G02B1/111 ,  G02B5/3033 ,  G02F1/133528

Abstract: Provided is a polarizing film that is excellent in external appearance and can contribute to improving the display characteristics of an image display apparatus. A polarizing film of the present invention includes a polyvinyl alcohol-based resin film containing iodine. At least one surface side of the polyvinyl alcohol-based resin film includes a low-iodine layer.

公开(公告)号：US20170129197A1

公开(公告)日：2017-05-11

申请号：US15321974

申请日：2015-06-26

Applicant: NITTO DENKO CORPORATION

Inventor： Masahiro Yaegashi ,  Daisuke Ogomi ,  Yuki Nakano ,  Yuji Saiki ,  Kota Nakai

IPC: B29D11/00 ,  B32B3/26 ,  B32B27/08 ,  B32B27/30 ,  G02B1/14 ,  B32B37/14 ,  B32B27/36 ,  B32B38/10 ,  G02B5/30 ,  B32B7/02 ,  B32B37/20

CPC classification number: B29D11/00644 ,  B29C55/023 ,  B29C55/065 ,  B29K2629/04 ,  B29K2667/003 ,  B32B3/266 ,  B32B7/02 ,  B32B27/08 ,  B32B27/306 ,  B32B27/36 ,  B32B37/02 ,  B32B37/144 ,  B32B37/203 ,  B32B38/10 ,  B32B38/1825 ,  B32B2038/0028 ,  B32B2038/047 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2307/42 ,  B32B2309/105 ,  B32B2329/04 ,  B32B2367/00 ,  B32B2457/20 ,  G02B1/14 ,  G02B5/3041

Abstract: A method of producing a long polarizer by which a polarizer serving as a final product that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, and that is free of any variation in quality can be produced at low cost and with high productivity. A method of producing a long polarizer having non-polarization portions according to an embodiment of the present invention includes; laminating, on one surface of a long polarizer, a long surface protective film having through-holes arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals to form a long polarizing film laminate; partially decoloring the polarizer through the through-holes of the surface protective film to form the non-polarization portions; and removing the surface protective film.

公开(公告)号：US11385391B2

公开(公告)日：2022-07-12

申请号：US16935468

申请日：2020-07-22

Applicant: NITTO DENKO CORPORATION

Inventor： Masahiro Yaegashi ,  Daisuke Ogomi ,  Yuki Nakano ,  Yuji Saiki ,  Kota Nakai

IPC: G02B5/30 ,  B32B27/16 ,  B32B23/20 ,  B32B27/34 ,  B29D11/00 ,  B32B27/32 ,  B32B3/30 ,  B32B27/30 ,  B32B27/20 ,  B32B27/36 ,  B32B7/06 ,  B32B27/08 ,  B32B23/08 ,  B32B3/26 ,  G02B1/14 ,  B32B7/12 ,  H01L51/52 ,  G02F1/1335 ,  G02F1/13363

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 according to an embodiment includes 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.

公开(公告)号：US10215900B2

公开(公告)日：2019-02-26

申请号：US15321875

申请日：2015-06-26

Applicant: NITTO DENKO CORPORATION

Inventor： Masahiro Yaegashi ,  Daisuke Ogomi ,  Yuki Nakano ,  Yuji Saiki ,  Kota Nakai

IPC: G02B5/30 ,  B32B7/02 ,  G09F9/00 ,  G02B1/14 ,  B32B3/26 ,  B32B3/30 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/20 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  H01L51/52 ,  B29D11/00 ,  G02F1/1335

Abstract: A long polarizing film laminate capable of producing a 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 polarizing film laminate according to an embodiment of the present invention includes: a long polarizer; and a surface protective film arranged on one surface side of the polarizer. The polarizing film laminate has, on the one surface side, exposed portions where the polarizer is exposed. The exposed portions are arranged in a lengthwise direction and/or a widthwise direction of the polarizer at predetermined intervals.

公开(公告)号：US20170137671A1

公开(公告)日：2017-05-18

申请号：US15322258

申请日：2015-06-26

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Ogomi ,  Masahiro Yaegashi ,  Yuki Nakano ,  Kota Nakai ,  Yuki Ose

IPC: C09J7/02 ,  G02B1/14 ,  G02B5/30

Abstract: A long pressure-sensitive adhesive film, that can be suitably used as a surface protective film or mask at the time of the treatment of a predetermined portion of a long film. A pressure-sensitive adhesive film including a long resin film; and a pressure-sensitive adhesive layer arranged on one surface of the resin film. The pressure-sensitive adhesive film has through-holes that are arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, and that penetrate the resin film and the pressure-sensitive adhesive layer integrally.

公开(公告)号：US10025013B2

公开(公告)日：2018-07-17

申请号：US13791017

申请日：2013-03-08

Applicant: NITTO DENKO CORPORATION

Inventor： Kentaro Ikeshima ,  Minoru Miyatake ,  Yuki Nakano

IPC: G02B5/30 ,  G02F1/1335 ,  B29C55/02

CPC classification number: G02B5/3033 ,  B29C55/026 ,  G02F1/133528 ,  G02F2001/133531

Abstract: An optical display device which includes a display panel, and at least one polarizing film including a polyvinyl alcohol-based resin layer disposed on a viewing side with respect to the display panel, and having an optical arrangement forming a cross-Nicol relationship with regard to polarized light entering the polarizing film from the side of the display panel. The polarizing film is produced to have a thickness of 10 μm or less, by a method comprising the steps of: forming a polyvinyl alcohol-based resin layer on a resin substrate; stretching the polyvinyl alcohol-based resin layer integrally with the resin substrate; and dyeing the polyvinyl alcohol-based resin layer using a dichroic material. The polarizing film is disposed in the optical display device in a state in which a surface of the polarizing film as a contact surface with the resin substrate during the production thereof is oriented toward a side opposite to the display panel.

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.

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。

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。