公开(公告)号：US20210356812A1

公开(公告)日：2021-11-18

申请号：US17273996

申请日：2019-08-27

Applicant: NITTO DENKO CORPORATION

Inventor： Takeshi Murashige ,  Junichi Inagaki ,  Keisuke Sato ,  Akiko Sugino ,  Shoichi Kawamitsu ,  Atsushi Kishi

IPC: G02F1/1335 ,  G02F1/13363

Abstract: An optical film set that can prevent the warping. The optical film set includes: a first optical film arranged on a viewer side of a liquid crystal cell; and a second optical film arranged on a back surface side of the liquid crystal cell, wherein the first optical film includes a first glass film, a first adhesion layer, and a first polarizing plate, which includes a first polarizer and a first protective film, in the stated order, wherein the first glass film has a thickness of from 50 μm to 150 μm, wherein the first protective film has a modulus of elasticity of 1 GPa or more, wherein the first adhesion layer has a thickness of 10 μm or less, wherein the second optical film includes a second polarizing plate including a second polarizer, and wherein the second polarizer has a thickness of from 1 μm to 10 μm.

公开(公告)号：US20220262692A1

公开(公告)日：2022-08-18

申请号：US17630640

申请日：2020-07-31

Applicant: NITTO DENKO CORPORATION

Inventor： Naoya Sugimoto ,  Shoichi Kawamitsu

IPC: H01L23/28 ,  C08L37/00 ,  C08F222/04

Abstract: The present invention provides a resin composition for producing an encapsulating member having high heat resistance and high encapsulation performance. In the resin composition for encapsulating a light-emitting device according to the present invention, at least one of (i) and (ii) is satisfied: (i) the resin composition includes a polymer (P1) including: a structural unit (A) represented by the following formula (1); and a structural unit (B) having at least one functional group selected from the group consisting of a carbonyl-containing group, a hydroxyl group, an epoxy group, an isocyanate group, and a cyano group; and (ii) the resin composition includes: a polymer (P2) including the structural unit (A); and a polymer (P3) including the structural unit (B).

公开(公告)号：US20220267490A1

公开(公告)日：2022-08-25

申请号：US17630577

申请日：2020-07-31

Applicant: NITTO DENKO CORPORATION

Inventor： Shoichi Kawamitsu ,  Naoya Sugimoto

IPC: C08F214/18 ,  G02B6/02

Abstract: The fluorine-containing copolymer of the present invention includes: a structural unit (A) represented by the following formula (1); and at least one selected from the group consisting of a structural unit (B) represented by the following formula (2), a structural unit (C) represented by the following formula (3), and a structural unit (D) represented by the following formula (4): in the formula (1), Rff1 to Rff4 each independently represent a fluorine atom, a perfluoroalkyl group having 1 to 7 carbon atoms, or a perfluoroalkyl ether group having 1 to 7 carbon atoms, and Rff1 and Rff2 are optionally linked to form a ring; in the formula (2), R1 to R3 each independently represent a fluorine atom or a perfluoroalkyl group having 1 to 7 carbon atoms, R4 represents a perfluoroalkyl group having 1 to 7 carbon atoms, the perfluoroalkyl group optionally has a ring structure, one or some of the fluorine atoms are optionally substituted by a halogen atom other than a fluorine atom, and one or some of fluorine atoms in the perfluoroalkyl group are optionally substituted by a halogen atom other than a fluorine atom; in the formula (3), R5 to R8 each independently represent a fluorine atom or a perfluoroalkyl group having 1 to 7 carbon atoms, the perfluoroalkyl group optionally has a ring structure, one or some of the fluorine atoms are optionally substituted by a halogen atom other than a fluorine atom, and one or some of fluorine atoms in the perfluoroalkyl group are optionally substituted by a halogen atom other than a fluorine atom; and in the formula (4), Z represents an oxygen atom, a single bond, or —OC(R19R20)O—, R9 to R20 each independently represent a fluorine atom, a perfluoroalkyl group having 1 to 5 carbon atoms, or a perfluoroalkoxy group having 1 to 5 carbon atoms, one or some of the fluorine atoms are optionally substituted by a halogen atom other than a fluorine atom, one or some of fluorine atoms in the perfluoroalkyl group are optionally substituted by a halogen atom other than a fluorine atom, one or some of fluorine atoms in the perfluoroalkoxy group are optionally substituted by a halogen atom other than a fluorine atom, s and t are each independently 0 to 5, and s+t represents an integer of 1 to 6 (when Z is —OC(R19R20)O—, s+t is optionally 0).

公开(公告)号：US20210107252A1

公开(公告)日：2021-04-15

申请号：US16965087

申请日：2019-01-23

Applicant: NITTO DENKO CORPORATION

Inventor： Shoichi Kawamitsu ,  Takeshi Murashige ,  Junichi Inagaki ,  Minoru Miyatake ,  Kazutaka Hara ,  Makoto Miyamoto

IPC: B32B7/023 ,  B32B1/08 ,  B32B7/12 ,  B32B17/06 ,  B32B7/06 ,  G02B5/30 ,  G02B1/11 ,  G02B1/18 ,  G02B1/16 ,  G02B1/14

Abstract: Disclosed is an optical laminate roll formed of a long optical laminate including a glass layer. In the optical laminate roll, the optical laminate includes a flexible glass layer (10), a polarize (30) and a pressure sensitive adhesive layer (80). The thickness of the glass layer is preferably 150 μm or less. The length of the optical laminate roll is preferably 100 m or more. In the optical laminate, the polarizer and the adhesive layer may be arranged in this order on a first principal surface of the glass layer. A transparent film may be disposed between the glass layer and the polarizer.