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

Sealant for display element

A technology for display components and sealants, which is applied in the direction of electrical components, electric solid devices, semiconductor devices, etc., and can solve problems such as poor operability, poor productivity, and poor transparency of adhesive cured products

Active Publication Date: 2016-06-22
SEKISUI CHEM CO LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the 1-component curable epoxy resin composition generally requires heating at a high temperature for a long time, so productivity is poor, and the 2-component curable epoxy resin composition requires labor when mixing the main ingredient and the curing agent. In addition, It must be used within the usable time (pot life) after mixing, so it is especially poor in operability
On the other hand, although the photocurable acrylic resin composition is excellent in workability and productivity, it has the following problems: the interaction with the liquid crystal is strong, so that the liquid crystal is stained to cause color unevenness; Acrylic resin remaining in the manufacturing process, resulting in a large amount of outgassing; or poor adhesion or transparency of the cured product
[0006] However, the acrylic photocurable resin compositions described in Patent Document 1 and Patent Document 2 have the following problems: a large amount of outgassing due to the acrylic resin remaining in the manufacturing process of the display element, or adhesiveness, The transparency of the cured product will deteriorate

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
  • Sealant for display element
  • Sealant for display element
  • Sealant for display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～11、 comparative example 1～9

[0118] Display elements of Examples 1 to 11 and Comparative Examples 1 to 5 were prepared by mixing each material with a mixer ("Three-One Motor HEIDON BLH300" manufactured by Shinto Scientific Co., Ltd.) according to the compounding ratios described in Tables 1 and 2. Use sealant.

[0119]

[0120] About each sealing compound for display elements obtained in the Example and the comparative example, it evaluated by the following method. The results are shown in Tables 1 and 2.

[0121] (1) Storage elastic modulus

[0122] Put each sealant for a display element obtained in Examples and Comparative Examples into a mold made of TEFLON (registered trademark) with a length of 35 mm, a width of 3 mm, and a thickness of 1 mm, and irradiate it with a high-pressure mercury lamp at 50 mW / cm for 40 seconds. 2 UV rays were used to prepare a viscoelasticity measurement sample with a length of 35 mm, a width of 3 mm, and a thickness of 1 mm. The obtained sample for viscoelasticity meas...

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
storage modulusaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
storage modulusaaaaaaaaaa
Login to View More

Abstract

The purpose of the present invention is to provide a sealant for a display element, having high shear bond strength with respect to adherends, allowing outgas production to be minimized, and affording excellent transparency to cured articles. The present invention is a sealant for a display element, containing a polythiol compound having two or more thiol groups per one molecule, a polyene compound having two or more carbon-carbon double bonds per one molecule, and a photopolymerization initiator, the storage elastic modulus of cured articles thereof at 80 DEG C being 70-1,000 MPa.

Description

technical field [0001] The present invention relates to a sealant for a display element that has high shear adhesive strength to an adherend, can suppress the generation of outgassing, and is excellent in the transparency of a cured product. Background technique [0002] In recent years, liquid crystal display elements, organic EL display elements, and the like have been widely used as display elements featuring thinness, light weight, low power consumption, and the like. For these display elements, a photocurable resin composition is generally used for sealing liquid crystals or light-emitting layers, bonding substrates, optical films, or protective films, and the like. [0003] In a liquid crystal display element, an optical film such as a polarizing film and a protective film are bonded to the surface of a substrate via an adhesive. For example, Patent Document 1 discloses an adhesive for polarizing films containing an acrylic resin composition. [0004] A liquid crysta...

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): H01L51/52C08G75/02
CPCC08G75/02H10K59/8722C08F2/50C08F8/34C08F36/02C08K5/37
Inventor 铃木卓夫伊藤和志山本拓也小林由季
Owner SEKISUI CHEM CO LTD
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