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Gas Barrier Film, Wavelength Conversion Member, And Backlight Unit

A gas-barrier film and wavelength technology, which is applied to wavelength conversion components, backlight units, and gas-barrier films. Effect

Active Publication Date: 2018-02-02
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, even in the state where the composition of each layer constituting the gas barrier film is optimized, a very small change in the layer thickness will cause a large change in the peak wavelength of the light transmittance, so there are problems in quality stability such as poor color reproduction. question

Method used

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  • Gas Barrier Film, Wavelength Conversion Member, And Backlight Unit
  • Gas Barrier Film, Wavelength Conversion Member, And Backlight Unit
  • Gas Barrier Film, Wavelength Conversion Member, And Backlight Unit

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Embodiment

[0159] Hereinafter, the present invention will be specifically described with examples, but the present invention is not limited to these. It should be noted that in the examples, "part" or "%" is used to indicate, and if there is no clear description, it means "mass part" or "mass %".

[0160] "Manufacturing of Gas Barrier Film 1"

[0161] Use the roll-to-roll type CVD film forming apparatus described in (Japanese) Patent No. 4268195 (refer to figure 2 ).

[0162] The effective film formation width is 250 mm, and the film formation conditions are as shown in Table 1 using the transport speed, the supply amount of raw material gas (hexamethyldisiloxane: HMDSO), the supply amount of oxygen, the degree of vacuum, and the applied power. As other conditions, the power supply frequency was 84 kHz, and the temperature of the film forming roller was 30°C.

[0163] In this way, the first gas barrier layer (A) and the first gas barrier layer (B) were formed on a substrate (model U403) with a...

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Abstract

The present invention addresses the problem of providing a gas barrier film in which gas barrier properties and optical characteristics are obtained at the same time, a wavelength conversion member, and a backlight unit. This gas barrier film has a first gas barrier layer comprising a plurality of layers on one surface of a substrate, the gas barrier film being characterized in that the average light transmittance in a wavelength range of 430-470 nm when light is incident from the side of the surface having the first gas barrier layer is 92% to 95%, and the average light transmittance in a wavelength range of 430-700 nm is 90% to 95%.

Description

Technical field [0001] The present invention relates to a gas barrier film, a wavelength conversion member, and a backlight unit. In more detail, it relates to a gas barrier film that has both gas barrier properties and optical characteristics. Background technique Background technique [0002] In recent years, as a wavelength conversion member that greatly improves the color reproduction of liquid crystal display devices, a thin film (hereinafter referred to as "QD film") in which a resin layer containing quantum dots is sandwiched by a translucent sheet member has been used Research (for example, refer to Patent Document 1.). [0003] Among the methods for improving the optical characteristics required for the gas barrier film, for example, as a method for increasing the light transmittance of a specific wavelength, a method based on the viewpoints of the structure, composition, and ratio of each layer constituting the gas barrier film has been studied. [0004] However, even i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/02F21S2/00C08J7/048
CPCF21S2/00C08J7/048
Inventor 宫崎美帆
Owner KONICA MINOLTA INC