WO2018086285A1 - 电容式触摸屏贴合用光热双重固化光学胶粘剂及其制备方法 - Google Patents

电容式触摸屏贴合用光热双重固化光学胶粘剂及其制备方法 Download PDF

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WO2018086285A1
WO2018086285A1 PCT/CN2017/076033 CN2017076033W WO2018086285A1 WO 2018086285 A1 WO2018086285 A1 WO 2018086285A1 CN 2017076033 W CN2017076033 W CN 2017076033W WO 2018086285 A1 WO2018086285 A1 WO 2018086285A1
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Prior art keywords
photo
curing
capacitive touch
gluing
optical adhesive
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PCT/CN2017/076033
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English (en)
French (fr)
Inventor
戚仁宏
刘呈贵
肖仁亮
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深圳飞世尔新材料股份有限公司
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Publication of WO2018086285A1 publication Critical patent/WO2018086285A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives

Definitions

  • the invention belongs to the technical field of adhesives, and in particular relates to a photothermal double curing optical adhesive for capacitive touch screen bonding.
  • Capacitive touch screen bonding liquid optical adhesive is mainly used for bonding lens and sensor in capacitive touch screen, and bonding of touch screen panel and display, must meet certain requirements, such as: colorless and transparent; in the specified light wave band The internal light transmittance is greater than 98%; and the refractive index of the adhesive after curing is close to the refractive index of the bonded optical element, reaching 1.52; the hardness after curing is small, the elongation is large, and the curing shrinkage is small, and the surface of the component is not caused. Change; resistance to cold and heat shock, heat and humidity aging, yellowing resistance, light aging resistance; harmless or low toxicity to human body.
  • the sensor sensor In the capacitive touch screen (CTP, Capacity Touch Panel) structure, the sensor sensor has opaque structures such as metal auxiliary electrodes and flexible circuit boards (referred to as FPC), and black or white shading inks on the cover Lens frame.
  • FPC metal auxiliary electrodes and flexible circuit boards
  • the blocking of the ultraviolet light will make the liquid optical glue of the part not be cured, which will lead to the hidden danger of the bonding of the part of the structure, and the side lamp curing process adopted by some manufacturers is because the depth of the adhesive layer is deep.
  • the irradiation area is very small and cannot be cured completely, and it is not possible to achieve a good bonding effect, and at the same time, a complicated process is added, which is very uneconomical.
  • the liquid optical adhesive adopts the photothermal double curing method in the part where the CTP cannot be irradiated with ultraviolet light, which can well solve the above problems. Therefore, the dual curing of light and heat has greater demand and significance.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

一种电容式触摸屏贴合用光热双重固化光学胶粘剂，其由以下按照重量百分比计算的组分组成：主体树脂30％-50％；增塑树脂30％-50％；活性单体10％-35％；光引发剂1％-5％；热引发剂1％-5％；阻聚剂0.1-1％；助剂0.2％-2％；这种用于电容式触摸屏贴合用光热双重固化光学胶粘剂可以进行光热双重固化，具有高折射率、高透光率、低色亮度、低硬度、低固化收缩率、可靠性好以及耐黄变性能好等优点。

Description

[根据细则37.2由ISA制定的发明名称]　电容式触摸屏贴合用光热双重固化光学胶粘剂及其制备方法 技术领域
本发明属于胶粘剂技术领域，具体涉及一种电容式触摸屏贴合用光热双重固化光学胶粘剂。
背景技术
随着信息产业的快速发展，特别是随着触摸屏技术在手机、笔记本电脑等电子产品中的应用以及爆炸式发展，也使得触摸屏技术得到飞速的发展以及广泛的应用。
电容式触摸屏贴合用液态光学胶粘剂主要是用于电容式触摸屏中镜片和传感器的粘接，以及触摸屏面板与显示器的粘接，必须满足一定的要求，如：无色透明；在指定的光波波段内光透过率大于98％以上；并且固化后胶粘剂的折射率与被粘光学元件的折射率相近，达到1.52；固化后硬度小、延伸率大同时固化收缩率小，不会引起元件表面的变化；耐冷热冲击、耐湿热老化、耐黄变、耐光老化；对人体无害或低毒性等。
在电容式触摸屏(简称：CTP，Capacity Touch Panel)结构中，传感器Sensor上会有金属辅助电极和软性线路板(简称：FPC)等不透明结构，盖板Lens边框上会有黑色或者白色遮光油墨，其对紫外光的阻挡会使得该部分的液态光学胶不能固化，这样就会导致该部分结构的粘接带有隐患，而目前部分厂家采用的侧灯固化工艺，又因为胶层深度较深照射面积非常小而不能固化完全，不能达到较好的粘接效果，同时又增加了一道复杂的工序，非常不合算。所以液态光学胶在光固化为主体固化的前提下，在CTP不能接受到紫外光照射的部分采用光热双重固化方式，可以很好解决上述问题。所以光热双重固化有较大的需求和意义。
目前该类光热双重固化光学胶粘剂的产品市场上已有少量出现，主要

Claims (1)

  1. Figure PCTCN2017076033-appb-100001
PCT/CN2017/076033 2016-11-10 2017-03-09 电容式触摸屏贴合用光热双重固化光学胶粘剂及其制备方法 WO2018086285A1 (zh)

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CN201610988245.9A CN106497438A (zh) 2016-11-10 2016-11-10 一种电容式触摸屏贴合用光热双重固化光学胶粘剂
CN201610988245.9 2016-11-10

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN109233648A (zh) * 2018-09-17 2019-01-18 烟台德邦科技有限公司 一种紫外光/加热双固化胶黏剂

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CN106978094A (zh) * 2017-04-25 2017-07-25 深圳市力邦新材料科技有限公司 光学胶、光学胶膜及制备方法
CN110633022B (zh) * 2019-09-18 2022-07-01 业成科技（成都）有限公司 触控模组及其制作方法和应用
CN114774063B (zh) * 2022-04-15 2023-06-09 烟台万华聚氨酯合成材料有限公司 一种用于oled柔性显示屏的封装胶及其制备方法
CN115975417A (zh) * 2022-12-30 2023-04-18 广东美涂士建材股份有限公司 一种可见光交联环保涂料及其制备方法

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