LED BACKLIGHT FILM AND LED BACKLIGHT

Title:

LED BACKLIGHT FILM AND LED BACKLIGHT

Document Type and Number:

WIPO Patent Application WO/2019/151073

Kind Code:

A1

Abstract:

Provided is an LED backlight film capable of improving waveguide efficiency of a light guide plate in a sidelight-type planar backlight. This LED backlight film comprises a low-refractive index layer, and a first pressure-sensitive adhesive layer disposed on at least one side of the low-refractive index layer, with the refractive index of the low-refractive index layer being 1.25 or less. In one embodiment, the low-refractive index layer is configured as a porous body having a void therein. In one embodiment, the porosity of the low-refractive index layer is 35% by volume or less.

Inventors:

HATTORI DAISUKE (JP)
NAKAMURA KOZO (JP)
KISHI ATSUSHI (JP)

Application Number:

PCT/JP2019/002036

Publication Date:

August 08, 2019

Filing Date:

January 23, 2019

Export Citation:

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Assignee:

NITTO DENKO CORP (JP)

International Classes:

F21S2/00; G02B6/00; H01L33/58; H01L33/60; F21Y105/00; F21Y115/10

Domestic Patent References:

WO2004113966A1

2004-12-29

Foreign References:

JPH09145903A	1997-06-06
JP2011207751A	2011-10-20
JP2012059645A	2012-03-22
JP2012114284A	2012-06-14
JP2010189212A	2010-09-02
JP2008040171A	2008-02-21
JP2006011175A	2006-01-12
JP2017047677A	2017-03-09

Other References: