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Transparent conductive film, patterned transparent conductive film, optical member and electronic device

A transparent conductive film and transparent film technology, applied in the direction of optical elements, optics, conductive layers on insulating carriers, etc., can solve problems such as damage to the transparent conductive layer, and achieve the advantages of improving yield, not easy to curl, and reducing coating film defects. Effect

Pending Publication Date: 2021-06-18
TOYO INK SC HOLD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem that the transparent conductive layer will be damaged if it is transported against sticking, or wound up, or loosened

Method used

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  • Transparent conductive film, patterned transparent conductive film, optical member and electronic device
  • Transparent conductive film, patterned transparent conductive film, optical member and electronic device
  • Transparent conductive film, patterned transparent conductive film, optical member and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0164] Hereinafter, although an Example demonstrates this invention, this invention is not limited to the said Example at all. In addition, in the synthesis example and the working example, except for the solvent, the number of prepared materials is in terms of non-volatile components.

[0165] [Determination of molecular weight]

[0166] The mass average molecular weight (Mw) and the number average molecular weight (Mn) are measured by gel permeation chromatography (GPC) method. The measurement conditions are as follows. In addition, both Mw and Mn are values ​​in terms of polystyrene.

[0167] Device: Shimadzu Prominence (SHIMADZU Prominence) (manufactured by Shimadzu Corporation),

[0168] String: Connect three Shodex (SHODEX) LF-804 (manufactured by Showa Denko Co., Ltd.) in series,

[0169] Detector: differential refractive index detector,

[0170] Solvent: tetrahydrofuran (THF, tetrahydrofuran),

[0171] Flow rate: 1.0mL / min,

[0172] Solvent temperature: 40°C,

...

Synthetic example 1

[0177] (A1): In a four-necked flask including a stirrer, a reflux cooler, a nitrogen inlet tube, a thermometer, and a dropping funnel, put Aronix (Aronix) M403: 2103g (containing molecular weight: 524 dipentaerythritol pentaacrylate ( 1000 g (about 1.91 moles) of DPPA) and 1103 g (about 1.91 moles) of dipentaerythritol hexaacrylate (DPHA) with a molecular weight of 578. Toagosei Co., Ltd.), Neostann U-810 (tin catalyst, manufactured by Nitto Chemical Co., Ltd.): 0.1 g, butyl acetate: 815 g, after making the liquid temperature 50° C., hexaethylene oxide containing about 21.8 mass % of isocyanate groups was added dropwise from the dropping funnel over 30 minutes. Urate body of methyl diisocyanate: 74 g (containing about 0.38 mol of isocyanate group). After the heating was completed, the temperature was raised to 80° C. and reacted for 3 hours. After confirming that the peak of the isocyanate group disappeared using a Fourier Transform Infrared Spectrometer (FT-IR), butyl acetate...

Embodiment 1

[0192] 100 parts by mass (non-volatile matter) of product A containing urethane (meth)acrylate synthesized in Synthesis Example 1, and 10 parts by mass of (B3) described later as a metal oxide having an average primary particle diameter of 30 nm , Esacure ONE (Esacure ONE) (manufactured by IGM-resins (IGM-Resins) B.V. company) as a photopolymerization initiator 5 parts by mass, BYK349 ​​(silicone-based additives as a leveling agent, Japanese BYK Chemicals (BYK -Chemie Japan) Co., Ltd.) 0.1 parts by mass, 20 parts of polyethylene glycol monoethyl ether (PGME) and 60 parts of butyl acetate as a diluting solvent were mixed and dispersed to obtain a hard coating agent 1.

[0193] The defoaming properties of the hard coat agent, the curling properties of the intermediate laminate provided with the hard coat layer, the surface roughness of the hard coat layer, and the hardness (HC properties) of the hard coat layer were evaluated according to the methods described below.

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Abstract

The invention provides a transparent conductive film, a patterned transparent conductive film, an optical member and an electronic device. The transparent conductive film is formed by laminating a hard coat layer on one side (I plane) of a transparent film, a high refractive index layer and a transparent conductive layer on the opposite side (II plane), wherein the hard coat layer is a cured product of a hard coat agent containing urethane (meth) acrylate (A), a metal oxide (B) and a photopolymerization initiator (C), and has a surface roughness Ra less than 1.5 nm. After a 10cm*10cm square test piece, where a hard coat layer having a thickness of 2[mu]m is formed using the hard coat agent on a polyethylene terephthalate film having a thickness of 100[mu]m, has an average curl floating height of 10 or less at 4 corners of the test piece when it is left standing for 1 minutes in an environment of 100 DEG C within 30 minutes after forming the hard coat layer.

Description

technical field [0001] The present invention relates to a transparent conductive film using a specific hard coat agent, a patterned transparent conductive film, an optical member, and an electronic device. Background technique [0002] After coating a high-refractive-index paint on the crystalline transparent film to make a high-refractive-index layer (refractive index of 1.55 to 1.90), the material forming the transparent conductive layer is uniformly spread on the high-refractive-index layer by sputtering or the like. The formed transparent conductive film is used as an electrode material for display devices such as touch panels by further patterning the transparent conductive layer into a desired shape thereafter. [0003] As a material for forming the transparent conductive layer, indium-based oxides such as indium tin oxide (hereinafter referred to as ITO (indium tinoxide)), Or materials containing nanowires of silver or copper as the main component. [0004] When man...

Claims

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Application Information

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IPC IPC(8): H01B5/14C09D4/02C09D7/61C09D7/20
CPCH01B5/14C09D4/00C09D7/61C09D7/20C08J7/044C08J7/042C08J7/046C09D133/14C09D175/14C08J5/18C08K3/22G02B1/04C08J2367/02
Inventor 清野数马早川友浩
Owner TOYO INK SC HOLD CO LTD
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