Blocking Member with Stretchable Parts for Foldable Display Gaps

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Solution Overview

Problem

Foldable display devices face challenges in preventing foreign matter from infiltrating through gaps formed between separated members, which can lead to bending stress and reduced durability.

Innovation Solution

A display device design that includes a blocking member with a blocking part crossing two upper support members, and stretchable parts connected to the blocking part, which are attached to the support members via fixing parts and coupling members, allowing the blocking member to move and adjust to prevent foreign matter entry.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If members are separated based on a folding area to mitigate bending stress, then the bending stress is reduced, but gaps are formed between the separated members allowing foreign material infiltration

Engineering Contradiction:
Improvebending stress resistanceVSAvoidforeign material infiltration
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The support members are divided into first and second upper support members separated at the folding area, allowing each segment to independently handle bending stress while the blocking member connects them to prevent foreign material entry through the resulting gap

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A blocking member is introduced as an intermediary element between the separated first and second upper support members. This blocking member includes a blocking part that physically obstructs the gap formed by separation, preventing foreign material infiltration while allowing the support members to move independently for stress mitigation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If a blocking member is introduced to prevent foreign material infiltration, then foreign material entry is blocked, but the device structure becomes more complex

Engineering Contradiction:
Improveforeign material infiltrationVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The blocking member integrates multiple functional parts (blocking part, first stretchable part, second stretchable part, first fixing part, second fixing part) into a single component that simultaneously prevents foreign material infiltration and accommodates the movement of separated support members during folding

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The blocking member incorporates stretchable parts that can dynamically extend and contract, allowing the blocking member to adapt its configuration as the support members move during folding and unfolding operations, maintaining the blocking function while accommodating structural changes

Inventive Principle:
Principle #15Dynamics

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 effectively blocks foreign matter infiltration by using a flexible blocking member that adjusts during folding and unfolding, enhancing the durability and reliability of foldable display devices.

Implementation Method 1

a first stretchable part connected to a side of the blocking part and including a plurality of openings, a second stretchable part connected to another side of the blocking part and including a plurality of openings

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12279383B2Display device
Publication Date: 2025.04.15 SAMSUNG DISPLAY CO LTD
  • US12279383B2 patent drawing
  • US12279383B2 patent drawing
  • US12279383B2 patent drawing

AI summary

A display device includes a display panel; a first upper support member on the display panel; and a second upper support member on the display panel and spaced from the first upper support member; and a blocking member including a blocking part crossing the first upper support member and the second upper support member, a first stretchable part connected to a side of the blocking part and including a plurality of openings, a second stretchable part connected to another side of the blocking part and including a plurality of openings, a first fixing part connected to the first stretchable part, and a second fixing part connected to the second stretchable part.