Magnetic Chassis Cover Mounting for Thin-Bezel Displays

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Solution Overview

Problem

Existing display devices face challenges in easily attaching a magnet to a case while maintaining a thin bezel design, which affects the detachability and aesthetic appeal of the chassis cover.

Innovation Solution

A display apparatus with a top chassis having a magnet fastening portion and an elastic bracket that securely attaches a chassis cover using magnets, allowing for easy detachment and improved design aesthetics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the bezel thickness is reduced to improve user immersion, then the aesthetic appeal and immersion are improved, but the structural stability and ease of attaching components like magnets become difficult

Engineering Contradiction:
Improvebezel thicknessVSAvoidstructural stability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The magnet fastening portion is nested within the top chassis structure, with the magnet embedded in a recessed area. The elastic bracket is nested within the magnet fastening portion, creating a compact hierarchical structure that maintains structural integrity while minimizing bezel thickness.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The elastic bracket is made from elastic material that can flex and deform elastically. This flexibility allows the bracket to engage with the magnet fastening portion securely while accommodating the thin bezel design, providing reliable attachment without requiring thick structural supports.

Inventive Principle:
Principle #30Flexible shells and thin films

2Adaptability or versatility

If a magnet is attached to the case to enable detachable chassis cover, then the detachability is improved, but the complexity of the attachment structure increases

Engineering Contradiction:
ImprovedetachabilityVSAvoidattachment structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The elastic bracket automatically engages with the magnet fastening portion through elastic deformation. When the bracket is inserted, it naturally flexes and locks into place without requiring additional fastening mechanisms or complex assembly steps, enabling self-service attachment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The magnetic attraction force replaces traditional mechanical fastening systems such as screws, clips, or adhesives. The magnet provides the holding force, while the elastic bracket provides the engagement mechanism, simplifying the overall attachment system compared to conventional mechanical fastening methods.

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

3Reliability

If the elastic bracket interferes with the magnet fastening portion to secure the magnet, then the attachment reliability is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveattachment reliabilityVSAvoidinterference fit precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The elastic bracket utilizes changes in elastic modulus and dimensional parameters through material selection and geometric design. The elastic material allows for controlled deformation within specific parameter ranges, enabling reliable interference fitting without requiring extremely tight manufacturing tolerances.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The solution combines magnetic material (for the magnet), elastic material (for the bracket), and chassis material (for the top chassis) into a composite attachment system. Each material contributes its specific properties: magnetic attraction, elastic deformation, and structural support, collectively achieving reliable attachment with moderate manufacturing precision.

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 solution enables a detachable chassis cover that enhances user immersion and design flexibility by securely attaching to the top chassis using magnets and elastic brackets, ensuring easy installation and removal.

Implementation Method 1

a magnet disposed on the magnet fastening portion to allow the chassis cover to be detachably mounted to the top chassis

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Implementation Method 2

an elastic bracket configured to fasten the magnet to the magnet fastening portion, the elastic bracket including a bracket body to which the magnet is mounted and an interference portion that interferes with the magnet fastening portion

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4375973B1Display device
Publication Date: 2025.11.26 SAMSUNG ELECTRONICS CO LTD
  • EP4375973B1 patent drawingFigure 1
  • EP4375973B1 patent drawingFigure 2
  • EP4375973B1 patent drawingFigure 3

AI summary

Disclosed herein is a display apparatus. The display apparatus includes a display panel displaying an image; a top chassis provided along an outer periphery of the display panel and supporting the display panel, the top chassis including a magnet fastening portion therein; a chassis cover provided on an exterior of the top chassis and covering the top chassis; a magnet provided on the magnet fastening portion and configured to allow the chassis cover to be detachably mounted to the top chassis; and an elastic bracket configured to fasten the magnet to the magnet fastening portion, the elastic bracket may include a bracket body to which the magnet is mounted and an interference portion configured to interfere with the magnet fastening portion.