Silane Film with Fluorinated Ether for Touchscreen Durability

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Solution Overview

Problem

The existing functional layers on touch screen panels, such as those used in smartphones and tablets, have low durability and are prone to degradation, leading to compromised functionality, particularly in terms of surface slip property and chemical resistance.

Innovation Solution

A silane compound with a fluorine-containing (poly)ether group is developed, which forms a durable and chemically resistant film when applied, enhancing abrasion resistance and maintaining high slip properties through increased bonding between silane compounds and improved hydrolyzable silane groups.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a functional layer is formed on the touch screen panel surface, then surface slip property and touch sense are improved, but durability and chemical resistance deteriorate

Engineering Contradiction:
Improvesurface slip propertyVSAvoiddurability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent uses a composite material comprising fluorine-containing (poly)ether groups combined with silane compounds to form a functional layer that simultaneously achieves high slip property and durability. The fluorine-containing (poly)ether provides low surface energy for slip, while the silane compound forms strong chemical bonds with the substrate, creating a composite structure that resolves the contradiction between ease of operation and reliability.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If a functional layer is formed on the touch screen panel surface, then surface slip property is improved, but chemical resistance deteriorates

Engineering Contradiction:
Improvesurface slip propertyVSAvoidchemical resistance
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The composite material combining fluorine-containing (poly)ether and silane compound creates a functional layer where the fluorine component provides chemical inertness and resistance, while the silane component ensures strong adhesion. This composite structure simultaneously achieves improved slip property and enhanced chemical resistance.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent modifies the chemical composition parameters by incorporating fluorine-containing (poly)ether groups with specific molecular structures and silane compounds with hydrolyzable groups, changing the material properties to achieve both high slip property and chemical resistance.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If silane compounds are used to improve bonding, then durability is improved, but chemical resistance may deteriorate

Engineering Contradiction:
ImprovedurabilityVSAvoidchemical resistance
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent creates a composite where silane compounds provide strong bonding and durability through hydrolysis and condensation reactions, while fluorine-containing (poly)ether groups provide chemical resistance. The synergistic combination resolves the contradiction between durability and chemical resistance.

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The silane compound-based film demonstrates improved durability, chemical resistance, and brine resistance, maintaining a high contact angle even after frequent frictions and exposure to chemicals, thus extending the lifespan of the touch screen panel surfaces.

Implementation Method 1

a film comprising a hydrolysis and polycondensation product of the silane compound having a fluorine-containing (poly)ether group

Methodology Applied
Scientific EffectHydrolysis: Hydrolysis

Implementation Method 2

a film comprising a hydrolysis and polycondensation product of the silane compound having a fluorine-containing (poly)ether group

Methodology Applied
Scientific EffectPolycondensation:

Data Source

PatentUS11525040B2Silane compound including fluorine-containing (poly)ether group, composition including the same, film formed from the composition, display device comprising the film, and article comprising the composition
Publication Date: 2022.12.13 SAMSUNG ELECTRONICS CO LTD
  • US11525040B2 patent drawing
  • US11525040B2 patent drawing
  • US11525040B2 patent drawing

AI summary

Disclosed are a composition comprising a silane compound having a fluorine-containing (poly)ether group represented by Formula 1, a film formed from the composition, a display device including the film, and an article including a coating product of the composition:Rf-(L1)p1(L)a-C(═O)NR-(L2)p2-Si(R1)(R2)(R3)   Formula 1wherein in Formula 1, R is -(L3)p3-Si(R4)(R5)(R6),L is —CH2— or —CH2—O—CH2—,Rf is a fluorine-containing (poly)ether group, andL1 to L3, p1 to p3, and R1 to R6 are the same as defined in the detailed description.