Rollable Display Torsional Elastic Member and Impurity Housing
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Solution Overview
Problem
Rollable display devices face issues such as the need for a separate power source, complex structure, increased components, noise generation due to impurity friction, and aesthetic degradation from impurities moving outwardly.
Innovation Solution
A rollable display device utilizing a cylindrical roller with a torsional elastic member that allows the display panel to be rolled and unrolled without a motor, incorporating a housing member with an inner surface for impurity attachment to prevent noise and aesthetic issues, featuring a torsional elastic member between the cylinder and housing members to generate elastic resilience and manage impurities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate power source (motor) is used to roll the display panel, then the rolling function is achieved, but the device complexity and number of components increase
Solution Approach 1:
The display panel utilizes its own flexibility and the mechanical advantage of the roller to achieve self-rolling without requiring an external motor or power source. The user simply pulls the display panel to unroll it, and the panel rolls up automatically due to the roller's mechanical structure, making the system self-sufficient and eliminating complex driving mechanisms.
Solution Approach 2:
The invention extracts and removes the motor and power source components from the rolling mechanism, retaining only the essential roller structure. This simplification eliminates the need for complex electrical systems while preserving the core rolling functionality through pure mechanical means.
2Ease of operation
If operating components are used for rolling, then the rolling function is achieved, but impurities are generated through friction which penetrate into spaces and generate noise
Solution Approach 1:
The invention converts the harmful friction between operating components into a beneficial adhesion force between impurities and the housing inner member. By providing a surface that actively attracts and holds impurities, the system transforms the noise-generating impurities into a contained feature that actually helps demonstrate the effectiveness of the noise prevention mechanism.
Solution Approach 2:
The housing inner member acts as an intermediary between the impurities and the internal spaces of the device. It provides a designated surface that intercepts impurities before they can penetrate into spaces between components, thereby preventing noise generation while allowing the rolling function to continue operating.
3Ease of operation
If operating components are used for rolling, then the rolling function is achieved, but impurities move outwardly and degrade aesthetic quality
Solution Approach 1:
The housing inner member serves as a mediator that intercepts impurities generated during rolling operations. By providing an internal surface that attracts and holds impurities, it prevents them from migrating to the external surface of the device, thereby maintaining aesthetic quality while allowing the rolling function to operate normally.
Solution Approach 2:
The invention transforms the potentially harmful outward migration of impurities into a beneficial containment effect. The housing inner member's impurity-attracting property converts what would be an aesthetic defect into a controlled feature, where impurities are deliberately directed to a specific location that does not affect the device's appearance.
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 noise-free operation and maintains aesthetic quality by using elastic resilience for rolling and unrolling without a motor, and effectively captures impurities to prevent them from moving outwardly, simplifying the structure and eliminating the need for additional power sources.
Implementation Method 1
a torsional elastic member fixed to the cylinder member and the housing member... due to the elastic resilience of a torsional elastic member
Data Source
AI summary
A rollable display device includes a roller having a cylindrical shape and an outer circumferential surface on which a display panel is rolled. A cylinder member supports rotation of the roller, using a rotation support member coupled thereto. A housing member is rotatable together with the roller. A torsional elastic member is fixed to the cylinder member and the housing member. A housing inner member is provided on an inner circumferential surface of the housing member, such that impurities are attached thereto. Noise is prevented from being generated by impurities due to friction during operations, and impurities are prevented from moving outwardly.