Electromagnetic Support Cavities for Flexible Display Curvature

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Solution Overview

Problem

Existing flexible display screen support structures are complex, occupy large internal space, and are heavy, making them difficult to integrate into portable devices due to their mechanical transmission requirements.

Innovation Solution

A support apparatus featuring an electromagnetic support cavity array on a substrate with magnetic field generation circuits and a control module, allowing the cavities to deform under controlled magnetic fields to form flexible curved surfaces without the need for mechanical motors or large space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mechanical telescopic support frame with a drive motor is used to form flexible curved surfaces, then the flexible display screen can be formed into different curved shapes, but the structure becomes complicated and occupies large internal space

Engineering Contradiction:

Improveability to form different curved shapesVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical telescopic support frame with drive motor system with an electromagnetic field-based support apparatus. The support apparatus uses electromagnetic cavities that can be controlled to deform and provide mechanical support, eliminating the need for complex mechanical transmission devices and motors, thus resolving the contradiction between achieving curved surface formation capability and reducing structural complexity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state and properties of the support structure by using electromagnetic fields to control the deformation of electromagnetic cavities. By adjusting electromagnetic field parameters, the support apparatus can dynamically change its shape and provide different levels of support, enabling flexible curved surface formation without complex mechanical structures

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

Engineering Contradiction:

Improveability to form different curved shapesVSAvoidinternal space occupied

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The electromagnetic support apparatus replaces the bulky mechanical telescopic support frame, significantly reducing the volume required for the support structure. The electromagnetic cavities and control circuits occupy much less space than mechanical components with motors and transmission mechanisms, thus resolving the contradiction between achieving curved surface formation and reducing internal space occupation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The support apparatus integrates multiple functions into a compact structure where electromagnetic cavities are embedded within the display screen assembly. The control circuits are integrated into the same substrate, creating a nested configuration that minimizes the overall volume occupied by the support system

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

Engineering Contradiction:

Improveability to form different curved shapesVSAvoidweight of support structure

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent replaces heavy mechanical components (telescopic frame, motors, transmission mechanisms) with lightweight electromagnetic components. The electromagnetic support apparatus uses coils and magnetic materials that are significantly lighter than equivalent mechanical systems, resolving the contradiction between achieving curved surface formation capability and reducing weight for portability

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 the formation of flexible display screens into various curved shapes with reduced weight and complexity, enhancing portability and flexibility in device design.

Implementation Method 1

multiple magnetic field generation circuits to generate magnetic fields to make the multiple electromagnetic support cavities deform

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11657942B2Support apparatus and flexible device

Publication Date: 2023.05.23 WUHAN TIANMA MICRO ELECTRONICS CO LTD

AI summary

Provided are a support apparatus and a flexible device. The support apparatus comprises a support substrate, an electromagnetic support cavity array which is located on the support substrate and includes a plurality of electromagnetic support cavities, a plurality of magnetic field generation circuits, and a control module, where the magnetic field generation circuits are electrically connected to the control module, and the control module is configured to control the plurality of magnetic field generation circuits to generate magnetic fields to make the electromagnetic support cavities deform along a direction perpendicular to a plane in which the support substrate is located. Through the scheme, the electromagnetic support cavity array is provided on the support substrate, and the magnetic field generation circuits are controlled by the control module to generate magnetic fields.