Foldable Light-Emitting Panel With Magnetic Housing Fixation

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Solution Overview

Problem

Existing light-emitting devices and display devices face challenges in achieving both high portability and browsability, particularly in mobile devices with large-sized display regions, as they often compromise between the two.

Innovation Solution

A light-emitting device with a flexible panel supported by multiple housings that are spaced apart and fixed together using magnetic forces, allowing for folding and unfolding without mechanical jigs, and incorporating a protective layer to enhance mechanical strength and reduce damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a large-sized display region is provided to improve browsability, then the display area increases, but the device becomes less portable

Engineering Contradiction:

Improvedisplay region areaVSAvoidportability

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The light-emitting panel is divided into multiple sections that can be folded relative to each other, with housings spaced apart to define fold regions. This segmentation allows the large display area to be collapsed into a compact form for portability while maintaining the full display region when unfolded.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The device transitions from a static large-area display to a dynamic structure that can change its physical configuration between unfolded (high browsability) and folded (high portability) states, allowing adaptation between the two opposing requirements.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the light-emitting panel is made flexible to enable folding, then portability improves, but the mechanical strength decreases and damage risk increases

Engineering Contradiction:

ImproveportabilityVSAvoidmechanical strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

A protective layer is provided over the light-emitting panel, particularly at the fold regions where stress is concentrated. This protective layer acts as a cushion against mechanical damage before it can reach the fragile flexible panel, enabling repeated folding without compromising the panel's integrity.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The device combines the flexible light-emitting panel with a rigid protective layer to create a composite structure that maintains flexibility for folding while providing enhanced mechanical strength and damage resistance through the protective outer layer.

Inventive Principle:

Principle #40Composite materials

3Strength

If housings are provided to support the flexible panel, then structural strength improves, but device complexity increases due to additional components

Engineering Contradiction:

Improvestructural strengthVSAvoidhousing structure complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The housings are equipped with magnetic elements that enable automatic magnetic fixation when the device is folded, eliminating the need for complex mechanical latches, buttons, or other fastening mechanisms. The magnetic force self-activates upon folding to secure the housings together.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Complex mechanical fastening systems are replaced with a simple magnetic field-based fixation system. The magnetic attraction between housings provides sufficient structural support and fixation without requiring intricate mechanical components, thereby reducing overall device complexity while maintaining structural strength.

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

The device provides high portability and browsability by allowing seamless large display regions, reducing power consumption, and preventing damage during folding and unfolding through magnetic fixation and protective layers.

Implementation Method 1

two of the plurality of housings which face each other when the light-emitting panel is folded are fixed to each other by magnetism

Methodology Applied

Scientific EffectMagnetism: Magnetism

Implementation Method 2

each of the plurality of housings include a ferromagnet and that the ferromagnet be provided in each of the plurality of housings so that magnetic poles of an upper surface and a lower surface of the housing are opposite to each other

Methodology Applied

Scientific EffectFerromagnetism: Ferromagnetism

Data Source

PatentUS20250336316A1Light-emitting device

Publication Date: 2025.10.30 SEMICON ENERGY LAB CO LTD

AI summary

A light-emitting device can be folded in such a manner that a flexible light-emitting panel is supported by a plurality of housings which are provided spaced from each other and the light-emitting panel is bent so that surfaces of adjacent housings are in contact with each other. Furthermore, in the light-emitting device, in which part or the whole of the housings have magnetism, the two adjacent housings can be fixed to each other by a magnetic force when the light-emitting device is used in a folded state.