Magnetic Attraction Structure for Display Panel Alignment

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Solution Overview

Problem

Existing display technologies face challenges in accurately aligning and firmly fixing OLED display panels with backplanes during assembly, which can lead to assembly difficulties, reduced accuracy, and potential damage due to uneven stress distribution.

Innovation Solution

A display module design incorporating a magnetic attraction structure and bonding portions between the display panel and backplane, where the magnetic attraction structure includes first and second magnetic components with varying attraction forces and flexible materials, and bonding layers to ensure precise alignment and secure bonding without excessive stress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional mechanical fixing methods are used to bond the display panel and backplane, then firm fixation is achieved, but assembly difficulty increases and alignment accuracy decreases

Engineering Contradiction:

Improvefixation strengthVSAvoidassembly ease

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces traditional mechanical bonding methods with a magnetic attraction system. Magnets embedded in the backplane attract and hold the display panel without mechanical fasteners, enabling easy assembly and disassembly while maintaining strong fixation. The magnetic force provides sufficient holding strength during operation but allows convenient manual adjustment during assembly.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic attraction structure provides dynamic adjustment capability during assembly. The display panel can be easily positioned and adjusted while being held by magnetic force, then firmly fixed once aligned. This dynamic characteristic resolves the contradiction between strong fixation and ease of assembly.

Inventive Principle:

Principle #15Dynamics

2Reliability

If strong bonding is used to firmly fix the display panel and backplane, then fixation security is improved, but stress distribution becomes uneven causing damage risk

Engineering Contradiction:

Improvefixation securityVSAvoidstress concentration

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The magnetic attraction structure is divided into multiple discrete magnets distributed across the backplane surface. This segmentation distributes the attractive force across multiple contact points, preventing stress concentration at any single location while maintaining overall fixation security.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent uses magnetic field strength as the fixation parameter instead of mechanical bond strength. Magnetic force can be uniformly distributed across the entire contact area through proper magnet placement, avoiding the stress concentration that occurs with point-based mechanical bonding.

Inventive Principle:

Principle #35Parameter changes

3Stress or pressure

If multiple bonding portions are used to distribute stress, then stress distribution improves, but device complexity increases

Engineering Contradiction:

Improvestress distributionVSAvoidstructure complexity

Core Design Contradiction:

Stress or pressureVSDevice complexity

Solution Approach 1:

The magnetic attraction structure serves multiple functions simultaneously: it provides stress distribution through multiple magnets, enables easy assembly, ensures fixation security, and allows for alignment adjustment. This multi-functionality resolves the contradiction by achieving stress distribution without proportionally increasing structural complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This solution simplifies the assembly process by allowing for easy adjustment and accurate alignment of the display panel and backplane, reduces the risk of damage during assembly and transportation, and ensures a secure, stress-reduced fixation, preventing breakage and warping.

Implementation Method 1

The magnetic attraction structure is disposed between the display panel and the backplane, and is configured to attract and fix the display panel and the backplane

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12262582B2Display module having magnetic attraction structure and bonding portions and display device

Publication Date: 2025.03.25 BOE TECHNOLOGY GROUP CO LTD

AI summary

A display module includes a display panel, a backplane, a magnetic attraction structure and a plurality of bonding portions; the display panel has a light exit surface and a back surface opposite to the light exit surface; the backplane is disposed on a side of the display panel away from the light exit surface; the magnetic structure is disposed between the display panel and the backplane, and the magnetic structure is configured to attract and fix the display panel and the backplane; the plurality of bonding portions are disposed between the display panel and the backplane, and the plurality of bonding portions are spaced apart; the plurality of bonding portions are configured to bond the display panel and the backplane.