Display Screen Module Magnetic Mounting for Damage-Free Replacement

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Solution Overview

Problem

Existing display screen modules in display devices are difficult to disassemble, leading to increased replacement costs and poor user experiences.

Innovation Solution

A magnetic-field controllable assembly is used to detachably connect the display screen module to the device body, utilizing magnetic attraction and repulsion to facilitate easy disassembly and assembly without structural damage, enhanced by an elastomeric seal for security and a movable connecting arm for stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the display screen module is fixedly connected to the device body, then the structural integrity and stability are improved, but the ease of disassembly and replacement deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidease of disassembly
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The connection system is segmented into a first magnetic connection component in the device body and a second magnetic connection component in the display screen module, allowing independent movement and detachment of each segment while maintaining overall structural integrity when connected

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Traditional mechanical fastening systems (screws, clips, adhesives) are replaced with a magnetic connection system that uses magnetic attraction forces to hold the display screen module to the device body, enabling easy detachment without structural damage while maintaining secure connection during operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If traditional mechanical fastening methods are used to connect the display screen module, then the connection strength is improved, but the damage to structural components during disassembly worsens

Engineering Contradiction:
Improveconnection strengthVSAvoidstructural damage
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

Mechanical fastening systems that cause structural damage during disassembly are replaced with a magnetic connection system where the magnetic field provides sufficient connection strength during operation but allows damage-free separation when the magnetic components are detached

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Magnetic fields serve as an intermediary force between the device body and display screen module, providing strong attraction when connected while avoiding direct mechanical contact that would cause structural damage during attachment and detachment operations

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of repair

If the display screen module is made detachable, then the ease of replacement is improved, but the connection stability deteriorates

Engineering Contradiction:
Improveease of replacementVSAvoidconnection stability
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The connection system transitions from static mechanical fastening to dynamic magnetic connection, where the magnetic force can be easily activated and deactivated to enable replacement, while maintaining stable connection strength during normal operation through optimized magnetic component design

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The magnetic connection strength parameter is optimized to provide sufficient attraction force for stable connection during operation, while the detachable nature allows parameter change from connected to disconnected state for easy replacement without compromising reliability during the connected state

Inventive Principle:
Principle #35Parameter changes

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

Facilitates easy and damage-free replacement of the display screen module, improves user experience through reduced costs and enhanced structural integrity, and provides anti-shaking and independent operation capabilities.

Implementation Method 1

A magnetic-field controllable assembly is used to detachably connect the display screen module to the device body, utilizing magnetic attraction and repulsion to facilitate easy disassembly and assembly

Methodology Applied
Scientific EffectMagnetic attraction and repulsion: Magnetism

Data Source

PatentEP3828666B1Display device
Publication Date: 2025.07.23 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP3828666B1 patent drawingFigure 1
  • EP3828666B1 patent drawingFigure 2
  • EP3828666B1 patent drawingFigure 3

AI summary

The present disclosure provides a display device (100), and belongs to the field of display technology. The display device (100) includes: a body (110), and a display screen module (120) detachably connected with the body (110). The body (110) includes a first magnetic assembly (113); and the display screen module (120) includes a second magnetic assembly (123). At least one of the first magnetic assembly (113) and the second magnetic assembly (123) is a magnetic-field controllable assembly (200), and the first magnetic assembly (113) and the second magnetic assembly (123) are connected with or separated from one another due to magnetic attraction or repulsion respectively.