LIGHT REFLECTION FILM AND BACKLIGHT UNIT FOR LIQUID CRYSTAL DISPLAY DEVICE

Title:

LIGHT REFLECTION FILM AND BACKLIGHT UNIT FOR LIQUID CRYSTAL DISPLAY DEVICE

Document Type and Number:

Japanese Patent JP2018025740

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a light reflection film having a high reflectance and high durability against irradiation of light in a dry high-temperature environment.SOLUTION: The light reflection film includes a substrate 11, a silver layer 12, a low refractive index layer group comprising one or more low refractive index layers L, and a high refractive index layer group comprising one or more high refractive index layers H, in this order, in which at least one of the low refractive index layer group and the high refractive index layer group includes an organic layer and an inorganic layer; a low refractive index layer Ladjacent to the silver layer is an organic layer; and at least one low refractive index layer L other than the low refractive index layer Land/or at least one high refractive index layer H is an inorganic layer. The low refractive index layer group satisfies λ/8<Σ(nxd)<λ/8, while the high refractive index layer group satisfies λ/4<Σ(nxd)<λ/4, where nand drepresent the refractive index and the film thickness of the low refractive index layer L, respectively; nand drepresent the refractive index and the film thickness of the high refractive index layer H, respectively; and λand λrepresent the minimum and the maximum in the wavelength region of incident light, respectively.SELECTED DRAWING: Figure 1

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Inventors:

SAITO MAKIKO
HONDA MIKA
MASUDA HARUKA

Application Number:

JP2016225172A

Publication Date:

February 15, 2018

Filing Date:

November 18, 2016

Export Citation:

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