Laminate film

A technology of laminated film and laminated body, applied in the direction of layered products, layered product processing, synthetic resin layered products, etc., can solve problems such as quantum dot degradation, and achieve the effect of preventing degradation

Active Publication Date: 2018-02-16
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, if the two sides of the quantum dot layer are sandwiched only by the gas barrier film, moisture or oxygen will permeate into the quantum dot layer from the end surface not covered by the gas barrier film, resulting in the deterioration of the quantum dot.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0254] As the composition for forming the end face sealing layer 16, a composition having the following composition in solid content was prepared. In addition, a composition is mass parts when the whole solid content is made into 100 mass parts.

[0255] · 66.7 parts by mass of 2-component main ingredient of curable epoxy compound (polymerizable compound, degree of hydrophilicity logP=3.8, manufactured by Henkel Japan Ltd., LOCTITE E-30CL)

[0256] · 33.3 parts by mass of 2 liquid curing agent for curing epoxy compound (manufactured by Henkel Japan Ltd., LOCTITE E-30CL curing agent)

[0257] This composition was applied by dripping to the entire end surface of the stacked laminated body of 1000 sheets, dried and cured at 80° C. for 10 minutes, thereby forming the end surface sealing layer 16 .

[0258] Thereafter, each laminated body was peeled off, and the end face sealing layer 16 was formed on the end face of the laminated body in which the gas barrier layer 14 was laminat...

Embodiment 2

[0263] The laminated film 10 was produced in the same manner as in Example 1 except that the solid content of the composition forming the end face sealing layer 16 was the composition shown below.

[0264] 50 parts by mass of an alicyclic epoxy compound (polymerizable compound, degree of hydrophilicity logP=0.8, manufactured by Daicel Chemical Industries Ltd., CELLOXODE 2021P)

[0265] 50 parts by mass of phthalic anhydride

[0266] The oxygen permeability of the end face sealing layer 16 was measured in the same manner as in Example 1. As a result, the oxygen permeability was 4.6cc / (m 2 ·day·atmospheric pressure).

Embodiment 3

[0268] The laminated film 10 was produced in the same manner as in Example 1 except that the solid content of the composition to be the end face sealing layer 16 was the composition shown below.

[0269] ・14 parts by mass of UV curable isocyanate compound (polymerizable compound, degree of hydrophilicity logP=0.5, manufactured by Showa Denko Co., Ltd., Karenz moi)

[0270] ・Polyvinyl alcohol (hydrogen bonding compound, degree of hydrophilicity logP=0.9, manufactured by KURARAY CO., LTD., PVA117H) 83 parts by mass

[0271] 3 parts by mass of photoradical polymerization initiator (manufactured by BASF Corporation, Irgacure 184)

[0272] In addition, in this example, after coating and drying the composition to be the end face sealant layer 16, ultraviolet rays were irradiated (accumulated irradiation dose was about 800 mJ / cm 2 ), thereby curing the composition, thereby forming the end face sealing layer 16.

[0273] With the same method as Example 1, the oxygen permeability of ...

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Abstract

The present invention addresses the problem of providing a laminate film which is provided with an optical functional layer such as a quantum dot layer, and which is capable of inhibiting deterioration of the optical functional layer due to oxygen or the like. The present invention is provided with: a laminate obtained by laminating a gas barrier layer on at least one of the surfaces of an opticalfunctional layer; and resin layers which cover end surfaces of the laminate, are formed from a composition including, when the total solid content is 100 parts by mass, at least 5 parts by mass of acompound having at least one polymerizable functional group selected from a (meth)acryloyl group, a vinyl group, a glycidyl group, an oxetane group, and an alicyclic epoxy group, and have an oxygen permeability of not more than 10 cc / (m<2>*day*atm).

Description

technical field [0001] The present invention relates to a laminated film used for backlights of liquid crystal display devices and the like. Background technique [0002] A liquid crystal display device (hereinafter, also referred to as LCD (Liquid Crystal Display)) is an image display device that consumes less power and saves space, and its use is expanding year by year. Further, in liquid crystal display devices in recent years, further power saving, improvement of color reproducibility, and the like are required to improve LCD performance. [0003] With the demand for power saving of LCD, it is proposed to use quantum dots (QD (Quantum Dot) which convert the wavelength of incident light and emit light in the backlight in order to improve the light utilization efficiency in the backlight (backlight unit) and improve the color reproducibility. ). [0004] A quantum dot is a state of electrons whose movement direction is restricted in all three-dimensional directions, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/02G02F1/13357
CPCG02F1/01791B32B27/00B32B27/18B32B2307/7242B32B2307/7244B32B2307/40B32B27/06B32B2309/105
Inventor 楠本将之大场达也内海京久
Owner FUJIFILM CORP
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