Foldable Display Support Plate With Through-Portion Hinge Structure

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Solution Overview

Problem

Existing flexible electronic apparatuses face challenges in maintaining mechanical integrity, ease of folding, and weight reduction while ensuring the display module is protected during folding.

Innovation Solution

A design incorporating a display module with a folding portion, support plate, adhesive layer, and cover featuring through portions that allow for flexible folding and reduced stress, while maintaining structural integrity and protecting the display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a flexible display panel is used to enable folding, then ease of folding and portability are improved, but mechanical integrity and structural strength deteriorate

Engineering Contradiction:
Improveease of foldingVSAvoidmechanical integrity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The patent employs flexible support plates with through portions that allow the display module to bend and fold while maintaining structural integrity. The through portions create a hinge-like structure that enables controlled deformation without compromising the overall strength of the support plate, resolving the contradiction between flexibility and mechanical integrity.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If the display module is protected with rigid structures, then protection is improved, but ease of folding and weight reduction deteriorate

Engineering Contradiction:
Improveprotection of display moduleVSAvoidease of folding
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The support plate is designed as a flexible structure with through portions that provides protection to the display module while maintaining the ability to fold. The through portions create a hinge mechanism that allows controlled bending, enabling the support plate to protect the display during folding operations without requiring rigid protective structures.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The support plate is segmented by creating through portions that divide the structure into regions separated by hinge areas. This segmentation allows the display module to be protected by the overall support structure while the segmented regions enable flexible folding motion, resolving the contradiction between protection and ease of folding.

Inventive Principle:
Principle #1Segmentation

3Stress or pressure

If through portions are added to the cover, then stress reduction during folding is improved, but structural strength and protection deteriorate

Engineering Contradiction:
Improvestress on display moduleVSAvoidstructural strength of cover
Core Design Contradiction:
Stress or pressureVSStrength

Solution Approach 1:

The cover is segmented by creating through portions that act as hinge areas, allowing the cover to flex during folding. This segmentation reduces stress concentration by distributing the folding stress across multiple hinge regions rather than concentrating it in a single area, thereby reducing overall stress on the display module while maintaining structural integrity through the segmented design.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12556626B2Foldable electronic apparatus
Publication Date: 2026.02.17 SAMSUNG DISPLAY CO LTD
  • US12556626B2 patent drawing
  • US12556626B2 patent drawing
  • US12556626B2 patent drawing

AI summary

An electronic apparatus includes a display module including a folding portion folded about a folding axis extending along a first direction and first and second non-folding portions spaced apart from each other with the folding portion interposed therebetween. A support plate is disposed on a lower side of the display module and includes openings overlapping the folding portion. An adhesive layer is disposed on an upper side of the support plate and overlaps the folding portion, the first non-folding portion, and the second non-folding portion, and a cover attached on a lower side of the support plate, and overlapping at least the folding portion. A through portion passes through the cover along a through direction, and has a depth along a third direction which is perpendicular to first and second directions. The through portion is connected to at least one of the openings.