公开(公告)号：US10935700B2

公开(公告)日：2021-03-02

申请号：US16476207

申请日：2017-12-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Yusuke Hashimoto ,  Atsuhiro Kobayashi ,  Seiichi Isojima

IPC: B32B3/00 ,  G02B1/14 ,  H01L51/52 ,  B32B27/08 ,  B32B7/12 ,  B32B27/34 ,  B32B27/28

Abstract: One aspect of the present invention provides a foldable light-transmitting optical film 10 for use in an image display device 50, which includes a resin base material 11, a hard coat layer 12 provided on the first surface 11A of the resin base material 11, and a resin layer 13 having a film thickness of 50 μm or more and 300 μm or less and provided on the second surface 11B of the resin base material 11 that is opposite to the first surface 11A, wherein the shear storage modulus (G′) of the optical film 10 at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is more than 200 MPa and 1200 MPa or less, and the shear loss modulus (G″) of the optical film at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 3 MPa or more and 150 MPa or less.

公开(公告)号：US10792901B2

公开(公告)日：2020-10-06

申请号：US16329615

申请日：2017-08-31

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Seiichi Isojima ,  Yusuke Hashimoto ,  Jun Sato

IPC: B32B27/08 ,  B32B27/28 ,  B32B7/022 ,  B32B7/023 ,  B32B27/34 ,  G06F1/16 ,  G09F9/30 ,  H01L51/50

Abstract: One aspect of the present invention provides a foldable light-transmitting optical film 10 for use in an image display device, comprising a resin base material 11 and a resin layer 12 provided on one surface 11A of the resin base material 11, wherein the shear storage elastic modulus (G′) of the optical film 10 at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 1 MPa or more and 200 MPa or less, and the shear loss elastic modulus (G″) of the optical film 10 at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 0.1 MPa or more and 100 MPa or less.