Magnetic Screen Protector Assembly for Residue-Free Replacement

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Solution Overview

Problem

Conventional screen protectors are difficult to remove and replace without leaving adhesive residue or damaging the screen, and their stability is compromised by repeated installation and removal.

Innovation Solution

A magnetic fixing assembly comprising a fixing unit with a metal strip and a magnetic unit with a sheet body, adhesive layer, and magnets, allowing detachable attachment to the display screen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the screen protector is installed on the surface of the display screen by adhesive, then the screen protector can be firmly fixed, but the user cannot remove the screen protector or replace it with a screen protector with different functions, and adhesive residue will be left on the surface of the display screen

Engineering Contradiction:

Improvefixing stabilityVSAvoidremovability and replaceability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the adhesive bonding mechanism with a magnetic field interaction system. The magnetic fixing assembly uses magnetic attraction between the magnetic unit and the metal frame to achieve firm fixation, while allowing easy removal and replacement by simply overcoming the magnetic force, thus eliminating adhesive residue issues and enabling screen protector replacement.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the bonding parameter from chemical adhesion to magnetic attraction. By using magnetic force instead of adhesive, the system achieves both strong fixation and easy removability, as magnetic force can be easily overcome by pulling the screen protector away from the magnetic unit.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the screen protector is removed from the surface of the display screen, then the screen protector can be replaced, but adhesive residue will be left on the surface of the display screen, or the structure of the screen protector will be damaged

Engineering Contradiction:

Improvescreen protector replacement capabilityVSAvoidadhesive residue and structural damage

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent eliminates adhesive-based bonding and replaces it with magnetic attraction. This substitution prevents adhesive residue from being left on the display screen surface during removal, and avoids structural damage to the screen protector that can occur when peeling away adhesive-based protectors.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic fixing assembly uses a disposable magnetic unit that can be easily removed and replaced. The magnetic unit itself can be discarded and replaced without damaging the display screen or the screen protector, as there is no permanent adhesive bonding.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Ease of operation

If the screen protector is installed on the surface of the display screen with a frame, then the screen protector can be detached, but the frame may be worn during repeated installation and removal, thereby affecting the stability of the screen protector

Engineering Contradiction:

ImprovedetachabilityVSAvoidframe stability and durability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces mechanical frame-based attachment with magnetic field interaction. The magnetic unit attaches to the metal frame through magnetic attraction rather than mechanical fitting, eliminating wear on the frame during repeated installation and removal operations, thus maintaining long-term stability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a magnetic unit as an intermediary between the screen protector and the metal frame. This magnetic unit absorbs the wear and tear during repeated attachment and detachment operations, protecting the metal frame from damage and maintaining the stability of the overall assembly.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enables easy replacement of screen protectors without adhesive residue and maintains stability by using magnetic attraction, extending the assembly's lifespan.

Implementation Method 1

The magnetic unit is detachably mounted on the fixing unit and is magnetically attached to the fixing unit

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS20260113067A1Magnetic fixing assembly of screen protector

Publication Date: 2026.04.23 VICROUND LTD CO

AI summary

A magnetic fixing assembly of a screen protector is configured to detachably fix a screen protector on a surface of a display screen and has a fixing unit and a magnetic unit. The fixing unit has a first adhesive sheet, such that the fixing unit can be attached to a border of the display screen. The magnetic unit has a sheet body, a second adhesive sheet, an anti-bending sheet, and at least one magnetic part. The anti-bending sheet and the magnetic part are mounted on the second adhesive sheet, such that the magnetic unit and the fixing unit are magnetically attracted to each other. The screen protector can be attached to the magnetic unit by the second adhesive sheet. Therefore, the screen protector can be detached from the display screen.