Nanoparticle Function Layer Composition Against Moisture and Solvent Contact

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Solution Overview

Problem

When nanoparticles such as quantum dots are dispersed, substances like organic solvents, oxygen, or moisture adhere to or come into contact with the nanoparticle function layer, leading to deterioration of its function.

Innovation Solution

A nanoparticle function layer comprising at least one nanoparticle and a fluorine-containing component where the number of fluorine atoms exceeds the number of carbon atoms, and a nanoparticle dispersion with a fluorine-containing component and solvent are used to minimize adhesion or contact of detrimental substances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dispersion containing nanoparticles is formed with general hydrocarbon groups or polymers, then the nanoparticles can be dispersed, but substances such as organic solvents, oxygen, or moisture adhere to or come into contact with the nanoparticle function layer surface, resulting in deterioration of the function

Engineering Contradiction:

Improvefunction stability of nanoparticle function layerVSAvoidadhesion of organic solvents, oxygen, or moisture

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the dispersion medium by using fluorine-containing components with specific fluorine-to-carbon atom ratios instead of general hydrocarbon groups or polymers. This parameter change modifies the surface properties of the nanoparticle function layer to reduce adhesion of harmful substances while maintaining nanoparticle dispersion.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs composite materials by combining fluorine-containing components with specific molecular structures (represented by general formulas 1 and 2) with nanoparticles. This composite approach creates a nanoparticle function layer with enhanced resistance to organic solvents, oxygen, and moisture while preserving the desired functional properties.

Inventive Principle:

Principle #40Composite materials

2Reliability

If the number of fluorine atoms in the fluorine-containing component is equal to or greater than the number of carbon atoms, then adhesion of detrimental substances is suppressed, but the selection and synthesis of suitable fluorine-containing components becomes more complex

Engineering Contradiction:

Improveresistance to adhesion of detrimental substancesVSAvoidcomplexity of fluorine-containing component structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by specifying that only certain portions of the fluorine-containing component structure need to satisfy the fluorine-to-carbon atom ratio requirement (as represented by general formulas 1 and 2). This allows other portions of the molecule to maintain simplicity and facilitate synthesis while the critical fluorine-rich regions provide the desired protection against adhesion of detrimental substances.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250388807A1Display device

Publication Date: 2025.12.25 SHARP DISPLAY TECHNOLOGY CORP

AI summary

A display device according to an aspect of the disclosure includes a light-emitting element comprising a nanoparticle function layer comprising at least one nanoparticle and a fluorine-containing component, in which the number of fluorine atoms constituting the fluorine-containing component is equal to or greater than the number of carbon atoms constituting the fluorine-containing component.