公开(公告)号：US11460610B2

公开(公告)日：2022-10-04

申请号：US15749250

申请日：2016-07-29

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Hattori ,  Hiromoto Haruta ,  Kozo Nakamura ,  Hiroyuki Takemoto

IPC: G02B1/14 ,  C09J7/29 ,  G06F3/00 ,  B32B5/18 ,  B32B27/00 ,  B32B27/06 ,  G02B1/12

Abstract: The present invention is intended to provide an optical laminate that achieves a superior film strength and a property that a void-provided layer and a pressure-sensitive adhesive/adhesive layer are not easily peeled from each other. The optical laminate of the present invention includes: a void-provided layer; an intermediate layer; and a pressure-sensitive adhesive/adhesive layer, wherein the void-provided layer, the intermediate layer, and the pressure-sensitive adhesive/adhesive layer are stacked in this order, and the intermediate layer is formed by forming the pressure-sensitive adhesive/adhesive layer on the void-provided layer.

公开(公告)号：US11249238B2

公开(公告)日：2022-02-15

申请号：US16982251

申请日：2019-03-22

Applicant: NITTO DENKO CORPORATION

Inventor： Kari Rinko ,  Kozo Nakamura ,  Daisuke Hattori

IPC: F21V8/00 ,  G09F13/18 ,  G02B6/42 ,  G02B5/02 ,  G09F13/22

Abstract: The present invention is directed to an optical member including: a first layer that includes a first region having a refractive index n1 and a second region having a refractive index n3; and a second layer disposed on a first main surface of the first layer so as to be in contact with the first region and the second region, the second layer having a refractive index n2. The first layer includes a plurality of said second regions adjoining the first region along a planar direction of the first layer; the plurality of second regions constitute a geometric pattern; and n1 to n3 satisfy the relationship n1

公开(公告)号：US20200233122A1

公开(公告)日：2020-07-23

申请号：US16832288

申请日：2020-03-27

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Hattori ,  Atsushi Kishi

IPC: G02B5/02 ,  B32B5/18 ,  B32B5/16 ,  B32B5/30 ,  C09J7/20 ,  C09D7/62 ,  C09C3/12

Abstract: A void-containing layer is diclosed in which a pressure-sensitive adhesive or an adhesive is less likely penetrated into voids. The void-containing layer of the present invention includes: nanoparticles, surfaces of which are modified with a compound having a surface orientation, wherein the void-containing layer has a void fraction of 15 vol %.

公开(公告)号：US20180239062A1

公开(公告)日：2018-08-23

申请号：US15754406

申请日：2016-07-29

Applicant: Nitto Denko Corporation

Inventor： Daisuke Hattori ,  Kozo Nakamura ,  Kazuhito Hosokawa

IPC: G02B1/14 ,  C08J7/04

CPC classification number: G02B1/14 ,  B32B5/18 ,  B32B7/02 ,  C08J7/042 ,  C08J2367/02 ,  C08J2429/04 ,  G02B1/111

Abstract: The present invention is intended to provide a laminated optical film achieving both a high proportion of void space (porosity) and superior abrasion resistance. The laminated optical film of the present invention includes: a void-provided layer; a resin film; and a cover layer, wherein the void-provided layer is formed on the resin film, the cover layer is formed directly on the void-provided layer, and the void-provided layer has a contact angle with water of 90° or more and a proportion of void space of 30 vol % or more.

公开(公告)号：US20180215124A1

公开(公告)日：2018-08-02

申请号：US15758073

申请日：2016-09-06

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Hattori ,  Kazuhito Hosokawa

IPC: B32B5/18 ,  B32B27/20 ,  B32B7/02 ,  B32B7/14 ,  G02B1/111 ,  G02B1/14

CPC classification number: B32B5/18 ,  B32B7/02 ,  B32B7/14 ,  B32B27/20 ,  B32B2266/0214 ,  G02B1/111 ,  G02B1/118 ,  G02B1/14

Abstract: The present invention aims to provide a low refractive index layer that can attain both a low refractive index and a high mechanical strength even when it has a large thickness. The low refractive index layer of the present invention is a low refractive index layer in the form of a void-containing layer, wherein hollow particles each having a void space inside are further contained in the void-containing layer, and the low refractive index layer has a refractive index of 1.25 or less.

公开(公告)号：US20150277011A1

公开(公告)日：2015-10-01

申请号：US14670751

申请日：2015-03-27

Applicant: NITTO DENKO CORPORATION

Inventor： Kozo Nakamura ,  Kazuki Uwada ,  Hiromoto Haruta ,  Takehito Fuchida ,  Hiroyuki Takemoto ,  Nao Murakami ,  Daisuke Hattori

IPC: G02B5/30 ,  G02B5/04 ,  G02F1/1335

CPC classification number: G02B5/3083 ,  G02B5/045 ,  G02F1/133528 ,  G02F2001/133507

Abstract: Provided is an optical member that can realize a liquid crystal display apparatus that is excellent in mechanical strength and provides sufficient brightness. The optical member includes: a polarizing plate; a low refractive index layer having a selected refractive index; and a prism sheet.

Abstract translation: 提供一种能够实现机械强度优异且提供足够亮度的液晶显示装置的光学部件。 光学构件包括：偏光板; 具有选定折射率的低折射率层; 和棱镜片。

公开(公告)号：US20150140343A1

公开(公告)日：2015-05-21

申请号：US14400441

申请日：2013-05-28

Applicant: NITTO DENKO CORPORATION

Inventor： Daisuke Hattori ,  Takeshi Murashige ,  Tadayuki Kameyama

IPC: C09J165/02 ,  B32B17/10 ,  B32B7/12 ,  C08K5/07

CPC classification number: C09J165/02 ,  B32B7/12 ,  B32B17/064 ,  B32B17/10697 ,  B32B17/10889 ,  B32B17/10908 ,  B32B27/36 ,  B32B2250/02 ,  B32B2255/26 ,  B32B2457/20 ,  C08G65/18 ,  C08K5/07 ,  C09J11/08 ,  C09J171/10 ,  C09J171/12 ,  Y10T428/31612

Abstract: An adhesive is provided that shows excellent adhesion under high temperature even when any one of a glass and a thermoplastic resin is used as an adherend. An adhesive according to an embodiment is used for an adherend that includes a glass and/or a resin layer including a thermoplastic resin (A), and the adhesive including: a thermoplastic resin (b); a thermosetting monomer (c); and a curing catalyst, wherein: the thermoplastic resin (b) includes an aromatic thermoplastic resin (b1) having a glass transition temperature (Tg) of more than 200° C. and/or an alicyclic thermoplastic resin (b2) having a glass transition temperature (Tg) of more than 200° C.; the thermosetting monomer (c) has compatibility with the thermoplastic resin (b); and a content of the thermosetting monomer (c) is from 5 parts by weight to 50 parts by weight with respect to 100 parts by weight of the thermoplastic resin (b).

Abstract translation: 即使使用玻璃和热塑性树脂中的任一种作为被粘物，也提供了在高温下表现出优异的粘附性的粘合剂。 根据实施方案的粘合剂用于包括玻璃和/或包含热塑性树脂（A）的树脂层的被粘物，并且所述粘合剂包括：热塑性树脂（b）; 热固性单体（c）; 和固化催化剂，其中：所述热塑性树脂（b）包括玻璃化转变温度（Tg）大于200℃的芳族热塑性树脂（b1）和/或具有玻璃化转变的脂环族热塑性树脂（b2） 温度（Tg）大于200℃。 热固性单体（c）与热塑性树脂（b）具有相容性; 热固性单体（c）的含量相对于热塑性树脂（b）100重量份为5重量份〜50重量份。

公开(公告)号：US20150072125A1

公开(公告)日：2015-03-12

申请号：US14389849

申请日：2013-03-19

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi Murashige ,  Daisuke Hattori ,  Tadayuki Kameyama

IPC: B32B17/10 ,  B32B7/12 ,  B32B37/12

CPC classification number: B32B17/10779 ,  B32B7/12 ,  B32B17/064 ,  B32B17/1055 ,  B32B37/12 ,  B32B2250/02 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2310/0831 ,  B32B2315/08 ,  B32B2367/00 ,  B32B2386/00 ,  B32B2457/12 ,  B32B2457/20 ,  H01L31/03926 ,  Y02E10/50 ,  Y10T156/10 ,  Y10T428/24967 ,  Y10T428/24975

Abstract: Provided is a transparent sheet that is prevented from curling, is excellent in external appearance, prevents the progress of a crack, and the rupture, of its glass, and is excellent in flexibility. A transparent sheet of the present invention includes: an inorganic glass; and a resin film bonded onto one side, or each of both sides, of the inorganic glass through an adhesion layer, in which: the inorganic glass has a thickness of from 35 μm to 100 μm; the adhesion layer has a single-layer thickness of more than 10 μm and (the thickness of the inorganic glass×0.3) μm or less; the adhesion layer has a modulus of elasticity at 25° C. of from 1.2 GPa to 10 GPa; and a ratio of a total thickness of the resin film to the thickness of the inorganic glass is from 0.9 to 4.

Abstract translation: 提供一种防止卷曲的透明片材，外观优异，防止裂纹发生和玻璃破裂，柔软性优异。 本发明的透明片包括：无机玻璃; 和通过粘合层结合到无机玻璃的一侧或两侧的树脂膜，其中：无机玻璃的厚度为35μm至100μm; 粘合层的单层厚度大于10μm，无机玻璃的厚度为0.3μm以下， 粘合层在25℃下的弹性模量为1.2GPa至10GPa; 并且树脂膜的总厚度与无机玻璃的厚度的比率为0.9〜4。

公开(公告)号：US20240192408A1

公开(公告)日：2024-06-13

申请号：US18285067

申请日：2021-12-28

Applicant: NITTO DENKO CORPORATION

Inventor： Ryota Morishima ,  Takahiro Yoshikawa ,  Daisuke Hattori

IPC: G02B1/14

CPC classification number: G02B1/14 ,  G02B2207/107 ,  G02B2207/109

Abstract: The present invention provides an optical laminate including a void-containing layer with high strength against peeling, a method for producing the optical laminate, an optical member including the optical laminate, an optical apparatus including the optical laminate, a method for producing the optical member, and a method for producing the optical apparatus. The optical laminate (10a) or (10b) of the present inventions includes: a void-containing layer (12); and a hard layer (13) formed on the void-containing layer (12), wherein the void-containing layer (12) has a void fraction of 30 vol % or more, the hard layer (13) includes at least one element selected from the group consisting of metal, metal oxide, silicon, silicon oxide and an organic-inorganic hybrid material, and hardness measured by pushing an indenter of a nano indenter into the hard layer (13) for 20 nm is larger than hardness of the void-containing layer (12).

公开(公告)号：US11921311B2

公开(公告)日：2024-03-05

申请号：US17913567

申请日：2021-03-26

Applicant: NITTO DENKO CORPORATION

Inventor： Takahiro Yoshikawa ,  Daisuke Hattori ,  Ryota Morishima

IPC: F21V8/00 ,  G02F1/13357

CPC classification number: G02B6/0028 ,  G02B6/0073 ,  G02F1/133615

Abstract: Provided is a lighting apparatus having high light entrance efficiency with respect to a light guide plate, and being excellent in tint of light emitted from the light guide plate. The lighting apparatus of the present invention includes: an LED package; a light guide plate, which includes a main surface serving as a light emission surface, and a side surface serving as a light entrance surface, and which is arranged so that the side surface is opposed to the LED package; and a low-refractive index layer arranged between the LED package and the light guide plate.