公开(公告)号：US20150316696A1

公开(公告)日：2015-11-05

申请号：US14647534

申请日：2014-02-06

Applicant: NITTO DENKO CORPORATION

Inventor： Takashi KAMIJO ,  Akinori IZAKI ,  Takeharu KITAGAWA ,  Shusaku GOTO ,  Daigoro NAKAGAWA

IPC: G02B5/30 ,  G02B1/14

CPC classification number: G02B1/14 ,  B32B7/02 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  B32B2307/412 ,  B32B2307/418 ,  B32B2307/42 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/206 ,  G02B1/11 ,  G02B1/111 ,  G02B5/3033 ,  G02B5/3083

Abstract: An optical laminate in which a polarizing film including a polyvinyl alcohol-based resin having oriented iodine is bonded on a first surface of the polarizing film to an optical film through an optically transparent adhesive layer is provided. The polarizing film exhibits a property that a value expressed by the following formula: Aa×(Is/Ia), is 0.53 or more, where: Aa represents an absorbance; Ia represents a value obtained by integrating a distribution of integrated intensities in the thickness direction of the polarizing film; and Is represents a value obtained by integrating, a distribution of integrated intensities in the thickness direction of the polarizing film; and the adhesive layer exhibits a property that a difference between a refractive index of the adhesive layer and a refractive index in the absorption axis direction of the polarizing film at the first surface of the polarizing film is 0.08 or less.

Abstract translation: 提供了一种光学层叠体，其中包括具有取向碘的聚乙烯醇系树脂的偏振膜通过光学透明粘合剂层粘合在偏振膜的第一表面上与光学膜。 该偏光膜具有下述式所表示的值：Aa×（Is / Ia）为0.53以上，其中：Aa表示吸光度; Ia表示通过对偏振膜的厚度方向的积分强度分布进行积分而得到的值; Is表示通过对偏振膜的厚度方向的积分强度的分布进行积分而得到的值; 并且粘合剂层具有粘合剂层的折射率与偏振膜的第一表面的偏振膜的吸收轴方向的折射率之间的差为0.08以下的性质。

公开(公告)号：US20170276851A1

公开(公告)日：2017-09-28

申请号：US15512328

申请日：2015-09-18

Applicant: NITTO DENKO CORPORATION

Inventor： Akinori IZAKI ,  Ryohei SAWAZAKI ,  Atsushi YASUI ,  Yuki KIDA ,  Takeharu KITAGAWA ,  Takuya MORI

IPC: G02B5/30

CPC classification number: G02B5/3041 ,  C08G2170/40

Abstract: Provided is a polarizing plate including an optical functional film and a polarizing film (polarizer), the polarizing plate being thin and excellent in durability of the polarizing film. The polarizing plate of the present invention includes an optical functional film, a pressure-sensitive adhesive layer, a polarizing film, and a protective film in the stated order, in which: the polarizing film has a thickness of 15 μm or less; the pressure-sensitive adhesive layer has a thickness of 15 μm or less; the optical functional film has a moisture permeability of 200 g/m2/24 h or less; and the protective film has a moisture permeability of 1,000 g/m2/24 h or less.

公开(公告)号：US20210048570A1

公开(公告)日：2021-02-18

申请号：US16976560

申请日：2019-02-28

Applicant: NITTO DENKO CORPORATION

Inventor： Tetsuro TAKEDA ,  Katsunori TAKADA ,  Keisuke KIMURA ,  Tomohiro YAMASHITA ,  Yoichiro SUGINO ,  Eiko SUEFUSA ,  Akinori IZAKI

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/13363 ,  H01L27/32 ,  H01L51/52 ,  G06F3/044 ,  B60K35/00

Abstract: The reinforced polarizing optical film laminate comprises a polarizing film laminate containing an iodine concentration for the polarizing film and a water content for the polarizing film laminate which fall within a region surrounded, in an x-y orthogonal coordinate system in which the iodine concentration of the polarizing film is plotted on the x-axis, and the water content of the polarizing film laminate is plotted on the y-axis, by: a first line segment connecting a first point and a second point; a second line segment connecting the second point and a third point; a third line segment connecting the third point and a fourth point; a fourth line segment connecting the fourth point and a fifth point; and a fifth line segment connecting the first point and the fifth point, wherein the reinforced film laminate has a breaking strength in a MD direction of 135 N/10 mm or more.

公开(公告)号：US20150301248A1

公开(公告)日：2015-10-22

申请号：US14418740

申请日：2012-10-02

Applicant: Nitto Denko Corporation

Inventor： Akinori IZAKI ,  Mariko HIRAI ,  Keisuke KIMURA ,  Yuuji SAIKI ,  Hironori MOTOMURA

IPC: G02B5/30 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36

CPC classification number: G02B5/305 ,  B32B7/06 ,  B32B7/12 ,  B32B27/08 ,  B32B27/36 ,  B32B2307/42 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2307/736 ,  B32B2457/20 ,  B32B2457/202 ,  G02B1/105 ,  G02B1/14 ,  G02B5/3033

Abstract: Provided is a protective film capable of satisfactorily suppressing warping of a polarizing plate. The protective film of the present invention, includes a first resin layer (11), an adhesion layer (13), and a second resin layer (12) in the stated order.

Abstract translation: 提供能够令人满意地抑制偏光板翘曲的保护膜。 本发明的保护膜按照所述顺序包括第一树脂层（11），粘合层（13）和第二树脂层（12）。