公开(公告)号：US10908336B2

公开(公告)日：2021-02-02

申请号：US16082194

申请日：2017-03-06

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Kana Yamamoto ,  Takanori Hamada ,  Masataka Nakashima ,  Takahisa Nomura

IPC: G02B5/28 ,  B32B27/08 ,  C08L33/14 ,  G02B5/20 ,  B32B7/023 ,  B32B3/30 ,  G02B5/22 ,  G02F1/1335 ,  G06F3/041

Abstract: The present invention provides an optical layered body having excellent blue light blocking properties without affecting the color tone of displayed images. Provided is an optical layered body having a structure including: a substrate; and one or two or more functional layers on at least one surface of the substrate, the optical layered body having a spectral transmittance at a wavelength of 380 nm of lower than 1%, a spectral transmittance at a wavelength of 410 nm of lower than 10%, and a spectral transmittance at a wavelength of 440 nm of 70% or higher.

公开(公告)号：US10288773B2

公开(公告)日：2019-05-14

申请号：US15505011

申请日：2016-07-15

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tomoyuki Horio ,  Masataka Nakashima ,  Hiroshi Nakamura ,  Jun Sato ,  Takeshi Nishizono

IPC: B32B3/30 ,  G02B1/14 ,  B32B27/00 ,  B32B27/28 ,  B32B27/30 ,  G06F3/041 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

Abstract: The present invention provides a layered body for organic electroluminescence which is excellent in the hardness, the transparency and the folding-durable performance.The present invention is a layered body for organic electroluminescence in which an optical layered body is laminated on one surface of an organic electroluminescence layer and which is not cracked or fractured when a test in which the entire area of the layered body for organic electroluminescence is folded 180 degrees at 20 mm intervals is repeated 100,000 times.

公开(公告)号：US11360243B2

公开(公告)日：2022-06-14

申请号：US16359764

申请日：2019-03-20

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Tomoyuki Horio ,  Masataka Nakashima ,  Hiroshi Nakamura ,  Jun Sato ,  Takeshi Nishizono

IPC: G02B1/14 ,  B32B27/00 ,  B32B27/30 ,  B32B27/28 ,  H01L51/52 ,  H01L51/00 ,  G06F3/041 ,  B32B3/30 ,  H01L27/32

Abstract: The present invention provides a layered body for organic electroluminescence which is excellent in the hardness, the transparency and the folding-durable performance.
The present invention is a layered body for organic electroluminescence in which an optical layered body is laminated on one surface of an organic electroluminescence layer and which is not cracked or fractured when a test in which the entire area of the layered body for organic electroluminescence is folded 180 degrees at 20 mm intervals is repeated 100,000 times.

公开(公告)号：US10564324B2

公开(公告)日：2020-02-18

申请号：US16317388

申请日：2017-07-10

Applicant: Dai Nippon Printing Co., Ltd. ,  Dexerials Corporation

Inventor： Tomoyuki Horio ,  Masataka Nakashima ,  Hiroshi Nakamura ,  Takahisa Nomura ,  Seiji Shinohara ,  Kiyotaka Matsui ,  Kentaro Oshima ,  Satoshi Kuboyama ,  Yukihiro Ono

IPC: G02B1/115 ,  G02B1/14 ,  G02B5/00

Abstract: The present invention aims to provide an optical layered body that has excellent interlayer adhesiveness, particularly even in outdoor use, and also has highly excellent anti-blocking properties. The present invention relates to an optical layered body including: a substrate film; a hard coat layer containing silica fine particles on at least one surface of the substrate film; and a dry film layer on a surface of the hard coat layer opposite to the substrate film side surface of the hard coat layer, wherein the silica fine particles are exposed on the dry film layer side surface of the hard coat layer; the dry film layer is directly formed on the surface of the hard coat layer on which the silica fine particles are exposed; the hard coat layer before the formation of the dry film layer has projections and depressions on the surface on which the dry film layer is to be formed; the hard coat layer has an average silica fine particle abundance in ten 0.2 μm×0.2 μm regions of 30 to 80% and a standard deviation of silica fine particle abundances in the 10 regions of 1 to 7, where the 10 regions are randomly selected from a cross section of the hard coat layer in the thickness direction within the range from the dry film layer side interface to 10% of the thickness in the thickness direction; and the hard coat layer has a silicon atom abundance A of 2 to 10% on the surface opposite to the substrate film side surface as determined by X-ray photoelectron spectroscopy.

公开(公告)号：US10908333B2

公开(公告)日：2021-02-02

申请号：US16482116

申请日：2018-01-30

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Takahisa Nomura ,  Takanori Hamada ,  Masataka Nakashima ,  Kentaro Hata ,  Hiroshi Nakamura ,  Hiroki Nakagawa

IPC: H01L27/00 ,  G02B5/20 ,  H01L51/52 ,  H01L27/32

Abstract: Provided is an optical film 10 including a light-transmitting base material 11 and a light-transmitting functional layer 12 provided on one surface of the light-transmitting base material 11, wherein the optical film 10 has a spectral transmittance of less than 1% at a wavelength of 380 nm, a spectral transmittance of 10% or more and less than 60% at a wavelength of 410 nm, and a spectral transmittance of 70% or more at a wavelength of 440 nm, and wherein the light-transmitting functional layer 12 has a film thickness of 9 μm or less.