Foldable Display Support Mechanism for Bending Stress Relief
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Solution Overview
Problem
Foldable display terminals experience damage due to repeated folding and unfolding, primarily from bending stress on the bendable display, leading to potential deformation and reduced service life.
Innovation Solution
A support apparatus with a rotating mechanism, first and second support portions, and elastically deformable members to manage stress and reduce relative displacement among layers during folding and unfolding, ensuring uniform stress distribution and limiting excessive deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the foldable display terminal is folded or unfolded, then the display can be transformed between different states, but bending stress is applied to the bendable display causing damage
Solution Approach 1:
A support apparatus is introduced as an intermediary component between the foldable display and the housing. This support apparatus includes a first support portion, a second support portion, and a rotating mechanism that works together to provide structural support during folding operations, thereby reducing bending stress on the display while enabling transformation between folded and unfolded states.
Solution Approach 2:
The support apparatus incorporates a rotating mechanism with rotating members that can dynamically adjust their orientation and position during the folding process. This dynamic capability allows the support structure to adapt to different folding angles and states, providing continuous support to the bendable display throughout the transformation cycle and preventing stress concentration.
2Duration of action of moving object
If repeated folding and unfolding occurs, then the terminal can be used continuously, but the bendable part of the foldable display is easily damaged
Solution Approach 1:
The support apparatus is pre-installed within the housing structure to provide cushioning support before the folding stress is applied to the display. The first and second support portions are positioned to bear the mechanical load during folding, protecting the bendable display from direct stress exposure during repeated usage cycles.
Solution Approach 2:
The rotating mechanism enables the support apparatus to dynamically respond to repeated folding operations, maintaining proper support geometry throughout each cycle. This dynamic adaptation ensures consistent stress distribution across multiple usage cycles, preventing fatigue damage to the bendable display.
3Reliability
If the support apparatus is added to reduce stress, then the service life is prolonged, but the device complexity increases
Solution Approach 1:
The support apparatus is designed with multi-functionality: the first and second support portions not only provide structural support during folding but also serve as mounting structures for the bendable display. The rotating mechanism simultaneously enables folding transformation and stress distribution, reducing the need for separate dedicated components and thereby limiting overall structural complexity.
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 support apparatus reduces stress on the foldable display, preventing deformation and prolonging the service life by providing a sliding space and uniform stress distribution, thus enhancing the reliability and durability of the display.
Implementation Method 1
the first elastic member is elastically deformable to enable the first base plate to move in a direction close to or away from the rotating mechanism with respect to the first support member
Data Source
AI summary
A support apparatus and a foldable display terminal, which relate to the field of foldable display terminal technologies. The support apparatus includes a rotating mechanism, a first support portion, and a second support portion, where the first support portion includes a first support member, a first elastic member, and a first base plate, the first elastic member is connected between the first base plate and the first support member, and the first elastic member is elastically deformable to enable the first base plate to move in a direction close to or away from the rotating mechanism with respect to the first support member; and the second support portion and the first support portion are respectively disposed on two sides of the rotating mechanism, and the second support portion and the first support portion may be folded or unfolded opposite to each other.