Title:
LIGHT REFLECTIVE FILM
Document Type and Number:
Japanese Patent JP2015172747
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a film that appropriately serves as a reflection member of a side light type backlight and has high luminance.SOLUTION: A light reflective film includes a reflection film 2 whose at least one side has a prism 1. The prism 1 satisfies conditions of (1) apexes of 60-135° and (2) distances between the apexes of 1-30 μm. The prism 1 has a refraction index of 1.35-1.60. The reflection film 2 is composed of at least 5 layers or more, having a structure in which two or more kinds of thermoplastic resin different in refraction indexes are aligned in a thickness direction, and is a multilayer laminated film having the thicknesses of all the layers of 0.1 μm or more and less than 0.6 μm.
Inventors:
NAKAMURA HIROKADO
MAEKAWA SHIGETOSHI
UCHIDA HIROHITO
TANAKA TERUYA
MAEKAWA SHIGETOSHI
UCHIDA HIROHITO
TANAKA TERUYA
Application Number:
JP2015032588A
Publication Date:
October 01, 2015
Filing Date:
February 23, 2015
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
G02B5/08; B32B7/02; F21S2/00; F21V5/00; F21V5/02; F21V7/00; F21V7/04; F21V7/22; G02B5/02