Invention Grant
- Patent Title: Optical laminate, image display device, or touch panel sensor
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Application No.: US16082194Application Date: 2017-03-06
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Publication No.: US10908336B2Publication Date: 2021-02-02
- Inventor: Kana Yamamoto , Takanori Hamada , Masataka Nakashima , Takahisa Nomura
- Applicant: Dai Nippon Printing Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2016-042848 20160304,JP2016-248262 20161221
- International Application: PCT/JP2017/008728 WO 20170306
- International Announcement: WO2017/150739 WO 20170908
- Main IPC: G02B5/28
- 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.
Public/Granted literature
- US20190381762A1 OPTICAL LAMINATE, IMAGE DISPLAY DEVICE, OR TOUCH PANEL SENSOR Public/Granted day:2019-12-19
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