Title:
LAMINATED BODY AND MANUFACTURING METHOD THEREOF, LIGHT GUIDE PLATE UNIT, LIGHT SOURCE UNIT, DISPLAY DEVICE, PROJECTION IMAGE DISPLAY MEMBER, PROJECTION IMAGE DISPLAY DEVICE, AND DISPLAY SCREEN FILTER
Document Type and Number:
WIPO Patent Application WO/2020/196090
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an optical material having a visual recognition effect due to the directivity of light reflection that is higher than conventional ones. This invention provides a laminate having a multilayer laminated film in which a plurality of different thermoplastic resins are alternately laminated in 11 or more layers, wherein an average transmittance over a wavelength region of 400-700 nm of light with a wavelength in this region that is vertically incident on the front side surface of the multilayer laminated film is 50% or more, and where an average reflectance over the wavelength region of 400-700 nm of S-wave light with a wavelength in this region that is incident at angles of 20° and 70° with respect to the normal to the front surface of the film at azimuth angles φn (n: 1 to 5) is denoted by Rs20 (φn) and Rs70 (φn), respectively, a condition of Rs70(φn) - Rs20(φn) ≥ 50 (%) is satisfied in at least one azimuth angle φn.
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Inventors:
MATSUO YUJI (JP)
UTO TAKAYUKI (JP)
SHIRAISHI MIYU (JP)
UTO TAKAYUKI (JP)
SHIRAISHI MIYU (JP)
Application Number:
PCT/JP2020/011683
Publication Date:
October 01, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
G02B5/08; B32B7/023; G02B5/30
Foreign References:
| JP2002174723A | 2002-06-21 | |||
| JP2002014213A | 2002-01-18 | |||
| JP2013061480A | 2013-04-04 | |||
| JP2003295183A | 2003-10-15 | |||
| JP2016040605A | 2016-03-24 | |||
| JP2013508777A | 2013-03-07 | |||
| JP2014224891A | 2014-12-04 |
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