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公开(公告)号：US20190113659A1
公开(公告)日：2019-04-18
申请号：US16216274
申请日：2018-12-11
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Naotaka Higuchi , Kota Nakai , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Keisuke Kimura
Abstract: A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate (100) according to an embodiment of the present invention includes: a polarizer (10); and a protective film (21 and 22) arranged on at least one side of the polarizer (10). The polarizing plate (100) has a dimensional change ratio of −0.2% or more in a transmission axis direction thereof when the polarizing plate (100) cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate (100) bonded to the glass plate is left to stand under an atmosphere at −40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.
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Patent Agency Ranking
公开(公告)号：US10241236B2
公开(公告)日：2019-03-26
申请号：US15290775
申请日：2016-10-11
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Naotaka Higuchi , Kota Nakai , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Keisuke Kimura
IPC: G02B1/14 , G02B5/30 , B32B27/16 , B32B3/02 , B32B38/00 , B32B3/26 , G02F1/1335 , B32B3/24 , B32B7/12 , B32B27/08 , B32B27/30 , B32B38/04
Abstract: A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate (100) according to an embodiment of the present invention includes: a polarizer (10); and a protective film (21 and 22) arranged on at least one side of the polarizer (10). The polarizing plate (100) has a dimensional change ratio of −0.2% or more in a transmission axis direction thereof when the polarizing plate (100) cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate (100) bonded to the glass plate is left to stand under an atmosphere at −40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.
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公开(公告)号：US10139671B2
公开(公告)日：2018-11-27
申请号：US15341101
申请日：2016-11-02
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Kota Nakai , Naotaka Higuchi , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Youichirou Sugino , Keisuke Kimura
Abstract: There is provided a polarizing plate which is imparted durability. A polarizing plats with a pressure-sensitive adhesive, layer according to an embodiment of the present invention includes: a polarizing plate including a polarizer and a protective film arranged on at least one side of the polarizer; and a pressure-sensitive adhesive layer formed on at least one surface of the polarizing plate, wherein in the surface of the polarizing plate where the pressure-sensitive adhesive layer is formed, a non-contact portion that is out of contact with the pressure-sensitive adhesive layer is formed in an end portion of the polarizing plate.
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公开(公告)号：US10107947B2
公开(公告)日：2018-10-23
申请号：US15545766
申请日：2016-03-10
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Kota Nakai , Naotaka Higuchi , Keisuke Kimura , Yoshitsugu Kitamura , Hiroki Kuramoto
Abstract: There is provided a polarizer excellent in durability. A polarizer according to one embodiment of the present invention includes a resin film containing boric acid, wherein the resin film has a low-concentration portion, which contains a lower concentration of the boric acid than that in any other site, formed in an end portion thereof.
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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：US20170123111A1
公开(公告)日：2017-05-04
申请号：US15290775
申请日：2016-10-11
Applicant: NITTO DENKO CORPORATION
Inventor： Katsunori Takada , Naotaka Higuchi , Kota Nakai , Shinobu Nagano , Eiko Suefusa , Yoshitsugu Kitamura , Keisuke Kimura
CPC classification number: G02B1/14 , B32B3/02 , B32B3/266 , B32B7/12 , B32B27/08 , B32B27/16 , B32B27/306 , B32B38/0004 , B32B38/0036 , B32B2038/0028 , B32B2038/042 , B32B2038/047 , B32B2307/42 , B32B2307/518 , B32B2307/734 , B32B2329/04 , B32B2551/00 , G02B5/3033 , G02B5/305 , Y10S428/91 , Y10T428/24273 , Y10T428/24322 , Y10T428/24777
Abstract: A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate (100) according to an embodiment of the present invention includes: a polarizer (10); and a protective film (21 and 22) arranged on at least one side of the polarizer (10). The polarizing plate (100) has a dimensional change ratio of −0.2% or more in a transmission axis direction thereof when the polarizing plate (100) cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate (100) bonded to the glass plate is left to stand under an atmosphere at −40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.
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