Rollable Display Panel Support Structure for Stable Unrolling
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Solution Overview
Problem
Existing display devices face challenges in stably supporting and maintaining the unrolled state of display panels, leading to potential deformation and damage due to momentum of inertia during unrolling.
Innovation Solution
A display device design featuring a central member with a bending part that couples the display panel and support member, utilizing electrostatic or magnetic forces to maintain the panel's position and prevent deformation, along with rotating members for rolling and unrolling, and guide bars to manage the movement and separation of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display panel is unrolled by a rotating member, then the display area is expanded, but the display panel may deform or damage due to momentum of inertia
Solution Approach 1:
A support member is introduced as an intermediary component between the display panel and the rotating member. The support member receives and manages the momentum of inertia during unrolling, preventing direct transmission of harmful forces to the display panel while enabling area expansion.
Solution Approach 2:
The support member acts as a counterbalancing element that offsets the momentum of inertia generated during unrolling. By providing opposing support forces, it stabilizes the display panel and prevents deformation or damage while allowing the display area to expand.
2Reliability
If a support member is added to stabilize the display panel, then the panel stability is improved, but the device complexity increases
Solution Approach 1:
The support member is integrated with the existing rotating member structure, combining multiple functions into a unified component. This merging approach provides panel stabilization without requiring entirely separate support mechanisms, thereby limiting the increase in device complexity.
3Reliability
If a central member with bending part is used to couple the display panel and support member, then the panel position is maintained, but the manufacturing complexity increases
Solution Approach 1:
The central member incorporates a bending part with curved geometry that naturally accommodates the motion and forces during unrolling. This curved design maintains panel position effectively while being manufacturable using standard forming processes, balancing position maintenance with manufacturing ease.
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 prevents shape deformation and maintains the unrolled state of the display panel, enhancing its standing characteristic and reducing the risk of damage from unrolling processes.
Implementation Method 1
The first bending part and the display panel may be coupled to each other by an electrostatic force.
Implementation Method 2
The central member may include a magnet disposed at the first bending part and the second bending part. The first bending part and the display panel may be coupled to each other by a magnetic force.
Data Source
AI summary
A display device includes: a display panel having pixels; a first rotating member that rolls and unrolls the display panel; a support member supporting the display panel; and a central member disposed between the display panel and the support member and coupling the display panel and the support member. The central member includes a bending part.