Flexible Screen Warping Prevention via Magnetic Support

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Solution Overview

Problem

Flexible screens in sliding roll-up display apparatuses tend to warp near the reel and in the middle, affecting flatness and user experience due to inadequate support and tension distribution.

Innovation Solution

A terminal with a flexible screen assembly supported by a sliding roll-up assembly featuring parallel rollers connected by a support, a rollable supporting component with rigid sheets and soft adhesives, and magnetic components that cooperate to maintain flatness and prevent warping by ensuring full contact with the rollers during unrolling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible screen is used in a sliding roll-up display apparatus, then the display area can be adjusted and space is saved when rolled, but the flexible screen is prone to warping near the reel and in the middle area, affecting flatness

Engineering Contradiction:

Improveadjustable display areaVSAvoidflatness of flexible screen

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The patent uses a flexible screen main body that can be rolled and unrolled, combined with a rollable supporting component that provides structural support. This allows the display area to be adjusted while maintaining flatness through the supporting component that prevents warping during rolling and unrolling operations.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The magnetic component acts as an intermediary between the support and the rollable supporting component. It provides additional support force to prevent warping of the flexible screen during unrolling, particularly in the middle area and near the reel, thereby maintaining flatness while enabling adjustable display area.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Area of moving object

If the flexible screen is stretched outwards and rolled out, then the display area is expanded, but the flexible screen warps in areas near the reel and in the middle, reducing reliability

Engineering Contradiction:

Improvedisplay areaVSAvoidreliability of flexible screen

Core Design Contradiction:

Area of moving objectVSReliability

Solution Approach 1:

The flexible screen main body is combined with a rollable supporting component that maintains structural integrity during expansion. The supporting component includes rigid supporting sheets that prevent warping and maintain reliability when the display area is expanded through unrolling.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent replaces traditional mechanical support structures with a magnetic support system. The magnetic component provides distributed magnetic force to support the flexible screen during unrolling, preventing warping and maintaining reliability without requiring complex mechanical support mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If traditional support structures are used for flexible screens, then the structure is simple, but the flexible screen lacks sufficient support and tension distribution, causing warping

Engineering Contradiction:

Improvestructural complexityVSAvoidtension distribution of flexible screen

Core Design Contradiction:

Device complexityVSStability of the object's composition

Solution Approach 1:

The patent replaces traditional mechanical support structures with a magnetic support system. The magnetic component provides distributed magnetic force to evenly distribute tension across the flexible screen during unrolling, preventing warping without requiring complex mechanical support structures.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state of support from mechanical contact to magnetic field interaction. The magnetic component generates a magnetic field that distributes support force uniformly across the flexible screen, improving tension distribution and stability without increasing structural complexity.

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

The solution enhances the rigidity and flatness of the flexible screen, preventing warping and improving user experience by ensuring the screen remains flat during unrolling and rolling processes.

Implementation Method 1

the magnetic component magnetically cooperates with the rollable supporting component to unroll the flexible screen assembly

Methodology Applied

Scientific EffectMagnetic cooperation: Magnetism

Data Source

PatentUS11966258B2Terminal provided with flexible screen

Publication Date: 2024.04.23 BOE TECHNOLOGY GROUP CO LTD

AI summary

A terminal provided with a flexible screen, the terminal including a flexible screen assembly, a first fixed frame (6), a second fixed frame (7), a sliding roll-up assembly, and a magnetic component (9); the sliding roll-up assembly includes a first roller (3) and a second roller (4); the flexible screen assembly includes a flexible screen main body (1) and a rollable supporting component (2); the flexible screen assembly is supported by the first roller (3) and the second roller (4) and includes an opposite first side and second side; the first side is fixed to a first end of the first fixed frame (6), and the second side and the second fixed frame (7) are connected by an elastic member (8); the magnetic member (9) is provided on the support (5) and magnetically cooperates with the rollable supporting component (2).