Foldable Display Protection via Nested Accommodating Parts

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Solution Overview

Problem

Flexible electronic devices with foldable displays are vulnerable to external impacts due to their exposed display surfaces, necessitating a protective structure when in a folded state.

Innovation Solution

An electronic device incorporating an accommodating part that covers a portion of the display surface when folded, comprising a support part and an accommodating part with specific engaging and guide features that allow the display panel to fold and overlap, protecting the display surface from external impacts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display surface is fully exposed for flexibility and foldability, then the device is easier to carry and more convenient, but the display surface becomes vulnerable to external impacts and easier to damage

Engineering Contradiction:
ImproveconvenienceVSAvoiddisplay surface durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The display surface is divided into a first display portion and a second display portion separated by a folding axis. The first display portion can be folded to cover and protect the second display portion, creating distinct functional zones that serve both display and protection purposes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first display portion is designed to be dynamically movable relative to the second display portion through the folding mechanism. It can transition between an unfolded state for displaying content and a folded state for protecting the second display portion, adapting its position based on operational needs.

Inventive Principle:
Principle #15Dynamics

2Reliability

If an accommodating part is added to cover the display surface when folded, then the display surface is protected from external impacts, but the device structure becomes more complex

Engineering Contradiction:
Improvedisplay surface protectionVSAvoidstructure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The first display portion serves multiple functions: it displays content when unfolded and acts as a protective cover for the second display portion when folded. This multi-functionality eliminates the need for separate protective structures, reducing overall device complexity while maintaining protection capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

When folded, the first display portion is positioned to overlap and cover the second display portion, creating a nested configuration where one functional element protects another. This nesting approach provides protection without requiring additional external components.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If the first display portion is folded to cover the second display portion, then the display surface area for protection increases, but the area available for displaying content decreases

Engineering Contradiction:
Improveprotected display areaVSAvoiddisplay content area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The display system operates dynamically, switching between an unfolded state where the first display portion displays content and a folded state where it protects the second display portion. This temporal separation allows the same physical area to serve different functions at different times, resolving the area trade-off.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The first display portion alternates between displaying content and protecting the second display portion through periodic folding and unfolding actions. This periodic switching allows the system to optimize for either content display or protection as needed, without permanently sacrificing display area.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS11550357B2Electronic device
Publication Date: 2023.01.10 SAMSUNG DISPLAY CO LTD
  • US11550357B2 patent drawing
  • US11550357B2 patent drawing
  • US11550357B2 patent drawing

AI summary

An electronic device includes a display module including: a display panel foldable with respect to a folding axis and a support part disposed under the display panel; and an accommodating part which accommodates the display module. The display panel includes: a first display portion covered by the accommodating part in a folded state of the display panel; and a second display portion exposed to the outside in the folded state. The accommodating part includes: a first accommodating part which accommodates the first display portion in the folded state; and a second accommodating part which accommodates the first accommodating part in the folded state. As the display panel is folded, an included angle between the first display portion and the second display portion decreases, and an area in which the first accommodating part overlaps the second accommodating part increases in a plan view.