Deformable Extending Portion Supporter for Foldable Displays
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Solution Overview
Problem
Foldable and rollable display devices face challenges in supporting extended display units without increasing the volume of the supporting unit, affecting portability and user interaction.
Innovation Solution
An extendable display device design featuring a supporting plate for a rigid first region and a deformable extending portion supporter with overlapping metal thin film layers and an adhesive layer, allowing the display panel to be easily bent and supported without increasing the volume of the supporting unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a supporting unit is added to support the extended display unit, then the display device can be supported in an extended state, but the volume of the supporting unit increases, reducing portability
Solution Approach 1:
The supporting unit is segmented into multiple supporting members that can be independently folded and extended. Each supporting member can be separately controlled to provide support only when needed, allowing the supporting unit to maintain a compact form when not in use while providing adequate support when extended.
Solution Approach 2:
The supporting unit employs a dynamic folding mechanism that allows the supporting members to transition between folded and extended states. This dynamic capability enables the supporting unit to adapt its volume based on operational requirements, maintaining compactness during portability while expanding to provide necessary support during use.
2Area of stationary object
If the display panel is made extendable, then the display area can be increased, but the structure becomes more complex, affecting ease of manufacture
Solution Approach 1:
The display panel is divided into a first region and a second region that can be relatively moved with respect to each other. This segmentation allows the display panel to be extended by displacing the second region in a first direction, increasing the display area while maintaining a manageable structural complexity through modular design.
3Strength
If a thick supporting plate is used to support the display panel, then the support strength is improved, but the flexibility to be bent is reduced
Solution Approach 1:
The supporting structure is segmented into a supporting plate and multiple foldable supporting members. The supporting plate provides rigid support strength, while the supporting members can be folded along fold lines to provide the necessary flexibility and adaptability for different operational states.
Solution Approach 2:
Different parts of the supporting structure have different mechanical properties. The supporting plate is designed with high rigidity for strength, while the supporting members are designed with folding capability for flexibility. This local differentiation of mechanical properties allows the overall structure to simultaneously achieve both support strength and flexibility.
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
Enables the display device to be easily bent and support an extended display unit without increasing the volume of the supporting unit, maintaining portability and effective user interaction.
Implementation Method 1
an extending portion supporter configured to support the second region of the display panel and being deformable
Implementation Method 2
an adhesive layer between the first metal thin film layer and the second metal thin film layer
Data Source
AI summary
A display device includes a display panel including a first region and a second region adjacent to the first region and being extendable, a supporting plate configured to support the first region of the display panel and being inflexible, and an extending portion supporter configured to support the second region of the display panel and being deformable, wherein the extending portion supporter includes a first metal thin film layer and a second metal thin film layer overlapping each other.