Elastic Member Cutting Structure for Foldable Display Bezel Reduction

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Solution Overview

Problem

The existing elastic members in foldable display devices face stability issues due to protruding bridge parts after cutting, leading to potential safety hazards and increased bezel regions.

Innovation Solution

The elastic member module features a cutting region with concave portions and a connection part that allows the bridge part to be cut internally, preventing protrusion and reducing the bezel region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the bridge part is cut to separate the elastic member from the frame, then the elastic member can be applied to the display device, but a remaining region of the bridge part protrudes outward causing stability problems

Engineering Contradiction:
Improveapplicability to display deviceVSAvoidhandling stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The harmful remaining region of the bridge part is extracted and removed through the cutting region design. The cutting region includes first and second cutting lines that extend into the bridge part, allowing the protruding remaining region to be completely removed while maintaining the functional connection between the elastic member and frame during assembly.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cutting region is pre-formed in the bridge part before the elastic member is applied to the display device. The first and second cutting lines are预先 designed to extend into the bridge part, so that when cutting occurs, the remaining region is already positioned to be completely removed, preventing protrusion before it becomes a problem.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the bridge part is cut to separate the elastic member from the frame, then the elastic member can be applied to the display device, but the bezel region of the elastic member increases

Engineering Contradiction:
Improveapplicability to display deviceVSAvoidbezel region size
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The cutting region design extracts and removes the excess bridge part material that would otherwise form part of the bezel region. By extending the cutting lines into the bridge part, the design ensures that only the necessary connection portion remains, minimizing the bezel area while maintaining structural integrity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the bridge part remains connected to the frame, then the elastic member can be stored with the frame, but the bridge part cannot be cut and remains protruding

Engineering Contradiction:
Improvestorage and assembly convenienceVSAvoidsafety hazard from protruding part
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The harmful protruding remaining region is extracted and removed through the cutting region. The first and second cutting lines are designed to extend into the bridge part, ensuring complete removal of the protruding portion while maintaining the functional connection during storage and assembly processes.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cutting region acts as an intermediary structure that allows the bridge part to be properly separated. The first and second cutting lines create a controlled separation zone that eliminates the harmful remaining region while maintaining the necessary connection for storage and assembly convenience.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4601273A1Elastic member module and elastic member
Publication Date: 2025.08.13 LG INNOTEK CO LTD
  • EP4601273A1 patent drawingFigure 1
  • EP4601273A1 patent drawingFigure 2~3
  • EP4601273A1 patent drawingFigure 4

AI summary

An elastic member module according to an embodiment includes an elastic member and a frame, wherein the elastic member and the frame are connected by a bridge part, the elastic member includes a cutting region, the cutting region includes a first concave portion, a second concave portion, and a connection part between the first concave portion and the second concave portion, the first concave portion and the second concave portion are formed in a concave shape with respect to an outer surface of the elastic member, and the connection part is connected to the bridge part.