Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Functional composite film and wavelength conversion film

A technology of wavelength conversion and composite film, which is applied in the direction of nonlinear optics, synthetic resin layered products, and optical elements used to change the spectral characteristics of emitted light. Hardness, good handleability, and the effect of preventing the decrease of brightness

Active Publication Date: 2017-11-17
FUJIFILM CORP
View PDF13 Cites 3 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Functional composite film and wavelength conversion film
  • Functional composite film and wavelength conversion film
  • Functional composite film and wavelength conversion film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0348]

[0349] A gas barrier film having a base organic layer 14 , an inorganic layer 16 , and a light diffusion layer 20 was formed on the support body 12 . That is, the gas barrier film has the same figure 1 and figure 2 The gas barrier film 10 shown is a gas barrier film of the same structure.

[0350] And the gas barrier film was produced in the same manner except not forming the light-diffusion layer 20 . That is, this gas barrier film is also a gas barrier film having the same structure as the gas barrier film 34 shown in FIG. 3 except that it does not have the adhesive layer 18 .

[0351] 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.

[0352] >

[0353] Prepare TMPTA (manufactured by Daicel-Cytec Company, Ltd.) and photopolymerization initiator (manufactured by Lamberti S.p.A, ESACURE KTO46), weigh them so that the mass ratio becomes 95:5, and dissol...

Embodiment 2

[0378] As the adhesive, in addition to using ACRIT 8BR930 manufactured by Taisei Fine Chemical Co., Ltd., ACRIT 8UX-015A manufactured by Taisei Fine Chemical Co., Ltd. was used, and the same method as in Example 1 was used. Method A coating composition to be the light-diffusing layer 20 was prepared. Moreover, the quantity of the binder in the coating composition used as the light-diffusion layer 20 was made into the same quantity as Example 1, and the mass ratio of ACRIT 8BR930 and ACRIT 8UX-015A was 15:85.

[0379] ACRIT 8UX-015A added to the adhesive is a UV curable urethane acrylate with a weight average molecular weight of 1000-2000.

[0380] A gas barrier film was produced in the same manner as in Example 1 except that the light-diffusing layer 20 was formed using this coating composition. And, except that this gas barrier film was used, a wavelength conversion film was produced in the same manner as in Example 1.

[0381] As a result of measuring the refractive index ...

Embodiment 3

[0383] As the adhesive, in addition to using ACRIT 8BR930 manufactured by Taisei Fine Chemical Co., Ltd., ACRIT 8DK-3000 manufactured by Taisei Fine Chemical Co., Ltd. was also used. Method A coating composition to be the light-diffusing layer 20 was prepared. Moreover, the quantity of the binder in the coating composition used as the light-diffusion layer 20 was made into the same quantity as Example 1, and the mass ratio of ACRIT 8BR930 and ACRIT 8DK-3000 was 15:85.

[0384] ACRIT 8DK-3000 added to the adhesive is an ultraviolet curable acrylic polymer with a weight average molecular weight of 5000 and a double bond equivalent of 400 g / mol.

[0385] Except having formed the light-diffusion layer 20 using this coating composition, it carried out similarly to Example 1, and produced the gas barrier film. And, except that this gas barrier film was used, a wavelength conversion film was produced in the same manner as in Example 1.

[0386] As a result of measuring the refracti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
double bond equivalentaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A functional composite film having one or more combinations of an inorganic layer and a substrate organic layer on one surface thereof, and on the opposite surface thereof, having a light diffusion layer obtained by dispersing a light diffusion agent in a binder formed using a graft copolymer which: has an acrylic polymer as the main chain thereof; as a side chain thereof, has a urethane polymer with an acryloyl group on one end thereof, and / or a urethane oligomer with an acryloyl group on one end thereof; has a molecular weight of 10,000-3,000,000; and constitutes an acrylic equivalent of 500 g / mol or more. Also, a wavelength conversion film using the same. As a result, provided are a functional composite film and a wavelength conversion film which exhibit favorable light diffusion performance and light transmission properties.

Description

technical field [0001] The present invention relates to a functional composite film exhibiting good light diffusibility and adhesiveness, and a wavelength conversion film using the functional composite film. Background technique [0002] The use of liquid crystal display devices is expanding year by year as an image display device that consumes less power and saves space. Further, in recent years, further power saving, improvement of color reproducibility, and the like have been demanded as performance improvements of liquid crystal display devices. [0003] In the following description, "liquid crystal display device" is also referred to as "LCD". [0004] In response to the demand for power saving of LCD backlights, it has been proposed to use quantum dots that convert the wavelength of incident light and emit it in order to improve light utilization efficiency and color reproducibility. [0005] A quantum dot is a state of electrons whose movement direction is restricte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/18B32B27/40F21S2/00F21V3/00F21V3/04F21V9/16G02B5/02F21Y115/10F21Y115/20
CPCB32B27/18B32B27/30B32B27/40G02B5/0242G02B2207/101G02F2202/36G02F1/133614F21V9/30B32B7/12B32B2307/40B32B2309/105B32B2310/0831G02F1/1336
Inventor 岩濑英二郎
Owner FUJIFILM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com