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Gas barrier film and wavelength conversion film

A technology of wavelength conversion and wavelength conversion layer, which is applied in the direction of gaseous chemical plating, adhesive type, polyurea/polyurethane adhesive, etc., can solve the problems of luminous intensity decrease and quantum dot deterioration, and achieve high durability, The effect of good light diffusion

Active Publication Date: 2018-10-26
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Quantum dots are easily degraded by moisture or oxygen, and the luminous intensity decreases due to photooxidation reactions.

Method used

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  • Gas barrier film and wavelength conversion film
  • Gas barrier film and wavelength conversion film
  • Gas barrier film and wavelength conversion film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0426]

[0427] Make on one side of support body 12, have base organic layer 14, inorganic layer 16 and adhesive layer 18, have light diffusion layer 20 on the opposite side such as figure 1 The barrier film 10 is shown.

[0428] The support body 12 used a PET film (COSMOSHINE A4300 manufactured by Toyobo Co., Ltd.) having a width of 1000 mm, a thickness of 50 μm, and a length of 100 m.

[0429] >

[0430] TMPTA (manufactured by Daicel-Cytec Company, Ltd.) and a photopolymerization initiator (manufactured by Lamberti S.p.A, ESACURE KTO46) were prepared and weighed so that the mass ratio became 95:5. These were dissolved in methyl ethyl ketone (MEK) so that the solid content concentration became 15 mass %, and the coating composition for forming the base organic layer 14 was prepared.

[0431] In the coating section of a general RtoR film-forming device, which has a coating section using a die coater, a drying area using warm air, and a curing area using ultraviolet radiati...

Embodiment 1-2

[0458] In the polymerizable composition for forming the light diffusion layer 20, the first component, the second component and the third component are added to the binder component, and a urethane acrylate oligomer (manufactured by Sartomer Company, Inc, CN9178NS , n=1.469), the mass ratio of the solid content is formulated to be 60:15:15:10 in terms of the first component: the second component: the third component: urethane acrylate oligomer. Except for this, the barrier film 10 was produced in the same manner as in Example 1.

[0459] The refractive index n1 of the adhesive was calculated in the same manner as in Example 1 and was 1.471, so the difference n1-n2 of the refractive indices was 0.051.

[0460] In addition, when the Tg of the adhesive was measured in the same manner as in Example 1-1, it was 59°C.

Embodiment 1-3

[0462] In the polymerizable composition for forming the light diffusion layer 20, the second component of the binder component was changed from ACRIT8KX012C manufactured by Taisei Fine Chemical Co., Ltd. to ACRIT8KX056 manufactured by Taisei Fine Chemical Co., Ltd. (n = 1.48, Tg=111 degreeC), and the barrier film 10 was produced in the same manner as Example 1 except this.

[0463] The refractive index n1 of the adhesive was calculated in the same manner as in Example 1 and was 1.472, so the difference n1-n2 in the refractive index was 0.052.

[0464] In addition, when the Tg of the binder was measured in the same manner as in Example 1-1, it was 67°C.

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Abstract

Provided are: a gas barrier film with a light diffusion layer, which has high durability in terms of heat and light, while having good light diffusion performance and light transmissivity; and a wavelength conversion film which uses this gas barrier film. This gas barrier film comprises: a supporting body; an inorganic layer and an organic layer, which are arranged on one surface of the supportingbody; and a light diffusion layer which is arranged on the other surface of the supporting body and contains a binder and a light diffusing agent. The binder contains: a graft copolymer which has anacrylic polymer as the main chain, while having a urethane polymer or urethane oligomer having a terminal acryloyl group as a side chain; an acrylic polymer which has a methacrylate as a side chain; and a graft copolymer which has an acrylic polymer as the main chain, while having a urethane polymer or urethane oligomer having a terminal polycarbonate group as a side chain.

Description

technical field [0001] The present invention relates to a gas barrier film excellent in ultraviolet resistance and heat resistance, and a wavelength conversion film using the gas barrier film. Background technique [0002] Liquid crystal display devices (hereinafter, also referred to as LCDs) are being used year by year as image display devices that consume less power and save space. In addition, in recent years, further power saving, improvement of color reproducibility, and the like have been demanded for performance improvement of LCDs. [0003] In a backlight unit of an LCD, a light source including a white light source such as a white LED (Light-Emitting Diode: Light Emitting Diode) is widely used as a light source. [0004] In contrast, in recent years, as shown in Patent Document 1 and the like, a new backlight unit that expresses white light by light emitted from a light source such as a blue LED instead of a white light source and light emission from a wavelength c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B27/30C08F299/00G02B5/02
CPCC08F299/00C08L55/005C09D175/14C09J175/14G02B5/0221G02F1/133504G02F1/133617G02F2201/501G02F2202/36G02B1/14C08L51/003B32B2255/10B32B2255/26B32B2255/28B32B2307/40B32B2307/7242C08L75/14C08L83/00C23C16/345C23C16/545C08J7/048G02B5/02B32B9/00B32B27/30C08L87/005C08L2205/025C08L2205/035G02F1/1336G02F1/133614
Inventor 岩濑英二郎
Owner FUJIFILM CORP
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