Foldable Display Cover Sealing Gap Between Segmented Casings
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Solution Overview
Problem
Flexible display devices, particularly foldable ones, face the challenge of foreign substances entering the display module through gaps between casings, which can compromise their functionality and durability.
Innovation Solution
A display device design featuring a folding area with casings and a cover that extends and retracts to prevent foreign substances from entering, utilizing elastic members and a cover that moves between the casings to seal the gaps, ensuring the display module remains protected during folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device is made foldable with casings spaced apart at the folding area, then flexibility and portability are improved, but foreign substances can enter through the gaps between casings
Solution Approach 1:
A cover made of flexible material is disposed between the first and second casings at the folding area. The cover extends along the folding axis and flexes with the display panel during folding and unfolding, effectively sealing the gap between casings to prevent foreign substance entry while maintaining device flexibility.
Solution Approach 2:
The casing is divided into multiple segments (first casing, second casing, third casing) that can move relative to each other at the folding area. This segmentation allows the device to fold while the cover bridges the gaps between segments to maintain sealing.
2Object-affected harmful factors
If a cover is added to seal the gaps between casings, then foreign substance introduction is prevented, but device complexity increases
Solution Approach 1:
The cover is implemented as a simple flexible film or shell that passively flexes with the display panel during folding and unfolding. This flexible membrane approach provides effective sealing without requiring complex mechanical structures, motors, or control systems.
Solution Approach 2:
The cover is designed to automatically flex and seal the gap between casings through its own elasticity and the motion of the display panel during folding and unfolding. No additional actuators or control mechanisms are needed - the cover self-adjusts to maintain sealing throughout the folding cycle.
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
Effectively prevents the introduction of foreign substances into the display module, enhancing the device's reliability and longevity by maintaining a sealed environment during folding and unfolding operations.
Implementation Method 1
a first elastic member in the first cavity and connected to the first part
Data Source
AI summary
A display device includes a display panel including a folding area at which the display device is foldable and unfoldable; a first casing and a second casing arranged in a first direction along the display panel, the first casing and the second casing spaced apart from each other at the folding area; a third casing between the first casing and the second casing along the first direction, the third casing corresponding to the folding area; and a cover facing the display panel with the third casing therebetween, the cover connected to each of the first casing and the second casing. Folding and unfolding of the display device respectively includes extension of the cover from of the first casing and retraction of the cover into the first casing.