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Transparent film, transparent conductive laminate, and touch panel, solar cell and display device, using same

A technology of transparent conductivity and transparent film, which is applied to the conductive layer on the insulating carrier, transportation and packaging, semiconductor devices, etc., can solve the problems of inapplicability, and achieve the suppression of quality deterioration, excellent heat resistance, and high thermal shock resistance sexual effect

Active Publication Date: 2014-04-16
JX NIPPON OIL & ENERGY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such wholly aromatic polyimide resins cannot be applied to applications such as materials such as electronic and optical devices that require transparency (for example, liquid crystal display devices, organic EL display devices, etc.) because they are light yellow to reddish brown in color. and substrate film materials for transparent electrodes such as touch panels, etc.)

Method used

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  • Transparent film, transparent conductive laminate, and touch panel, solar cell and display device, using same
  • Transparent film, transparent conductive laminate, and touch panel, solar cell and display device, using same
  • Transparent film, transparent conductive laminate, and touch panel, solar cell and display device, using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] The linear expansion coefficients of the substrate films obtained in Examples 1 to 7 and Comparative Examples 1 to 2 can be determined by using a sample with a length of 20 mm, a width of 5 mm, and a thickness of 0.05 mm (50 μm), and a thermomechanical analyzer ( Rigaku product name "TMA8310"), under the conditions of tensile mode (49mN) and heating rate of 5°C / min under nitrogen atmosphere, the length change of the sample at 50°C to 200°C was measured, and 50 The average value of the length change per 1°C in the temperature range from °C to 200°C was measured. In addition, with respect to the substrate film used in Comparative Example 3, the linear expansion coefficient was measured in the same manner as in Example 1 except that the thickness of the sample was set to 0.1 mm (100 μm).

[0187]

[0188] The refractive index of the substrate film etc. obtained in each Example and each comparative example was measured using a refractive index measuring device (trade name...

Synthetic example 1

[0195] (Synthesis Example 1: Synthesis of tetracarboxylic dianhydride)

[0196] First, 6.83 g (dimethylamine: 75.9 mmol) of a 50% by mass dimethylamine aqueous solution was added to a 100 ml two-necked flask. Next, 8.19 g (hydrogen chloride: 78.9 mmol) of 35 mass % hydrochloric acid aqueous solution was added to the 100 ml dropping funnel. Next, install the dropping funnel on the two-necked flask, add the hydrochloric acid aqueous solution dropwise in the dimethylamine aqueous solution under ice-cooling, and prepare dimethylamine hydrochloride in the two-necked flask. . Next, 2.78 g (92.4 mmol) of paraformaldehyde and 2.59 g (30.8 mmol) of cyclopentanone were further added to the two-necked flask. Next, after installing a spherical condenser on the two-necked flask, the inside of the two-necked flask was replaced with nitrogen. Thereafter, the two-necked flask was immersed in an oil bath at 90°C, and heated and stirred for 3 hours to obtain a compound represented by the abo...

Embodiment 1）

[0205] First, heat a 30ml three-necked flask with a heat gun to fully dry it. Next, the atmosphere gas in the sufficiently dried three-necked flask was replaced with nitrogen, and the inside of the three-necked flask was made into a nitrogen atmosphere. Next, 0.1337 g (0.63 mmol: manufactured by Tokyo Chemical Industry Co., Ltd.: OTD) and 0.0541 g (0.27 mmol: manufactured by Wakayama Seika Kogyo Co., Ltd.: DDE) 4,4'- After the diaminodiphenyl ether, further add 2.7g of N,N-dimethylacetamide, and dissolve the aromatic diamine compound (ortho-toluidine ( OTD) and 4,4'-diaminodiphenyl ether (DDE)) to obtain a solution. Next, the three-necked flask containing the solution was submerged in a dry ice-acetone bath, and cooled to solidify the solution.

[0206] Next, 0.3459 g (0.90 mmol) of norbornane-2-spiro-2'-cyclopentanone-5'- After spiro-2”-norbornane-5,5”,6,6”-tetracarboxylic dianhydride, the temperature of the solution was returned to room temperature (25°C), under nitrogen ...

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Abstract

A transparent conductive laminate which is provided with both a substrate film that comprises a polyimide and a thin film that comprises a conductive material and that is laminated on the substrate film, wherein the polyimide comprises at least one kind of repeating units represented by general formula (1), has a glass transition temperature of 350 to 450 DEG C, and exhibits a coefficient of linear expansion of 30ppm / DEG C or less as determined by measuring the length change in a nitrogen atmosphere at a temperature rise rate of 5 DEG C / min within a temperature range of 50 to 200 DEG C. In general formula (1), R1, R2 and R3 are each independently one selected from the group consisting of a hydrogen atom, C1-10 alkyl and a fluorine atom; R4 is C6-40 aryl; and n is an integer of 0 to 12.

Description

technical field [0001] The present invention relates to a transparent film, a transparent conductive laminate, and a touch panel, a solar cell, and a display device using the same. Background technique [0002] Polyimide resins have conventionally been known as resins excellent in heat resistance and dimensional stability. Among such polyimide resins, the wholly aromatic polyimide resins obtained by the polycondensation reaction of aromatic tetracarboxylic dianhydrides and aromatic diamines can be processed even under high temperature conditions of 400°C or higher. Use, and the coefficient of linear expansion (CTE) is 12-32ppm and has excellent dimensional stability, so it can be used as a film, wire covering layer, adhesive, coating, etc. in a field. However, such wholly aromatic polyimide resins cannot be applied to applications such as materials such as electronic and optical devices that require transparency (for example, liquid crystal display devices, organic EL disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14C08G73/10H01L31/0392
CPCC08L79/08H01L31/04C08G73/1078Y02E10/50H01L31/0392C08G73/1042C08G73/105C08G73/14H01L31/022475Y10T428/31721H01L31/022466C08G73/10
Inventor 小松伸一椎桥彬藤代理惠子上野龙一松本隆也
Owner JX NIPPON OIL & ENERGY CORP
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