Rollable Display Magnetic Cycle Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rollable display devices face challenges in preventing damage to the display panel structure due to collisions between rolling cycles when rolled, as insufficient space between cycles can lead to scratches, cracks, or deterioration.
Innovation Solution
The integration of magnetic objects attached to the bezel region of the rollable structure, which cause magnetic attraction between rolling cycles, securing a sufficient space and aligning them to prevent collisions, using either permanent magnets or electromagnets that can be controlled by the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the rollable structure is rolled to achieve portability, then the device size is reduced, but the display panel structure may be damaged due to collisions between rolling cycles
Solution Approach 1:
Magnetic objects are introduced as intermediary elements between adjacent rolling cycles. These magnetic objects generate magnetic attraction forces that actively maintain spacing between cycles, preventing direct contact and collision. The magnetic field acts as a mediator force field that preserves display panel integrity during the rolling operation.
Solution Approach 2:
The magnetic objects are positioned in advance on the rollable structure to pre-establish the spacing between rolling cycles before any collision can occur. This preliminary positioning of magnetic elements ensures that as the structure is rolled, the display panel maintains proper separation from subsequent cycles, preventing damage before it can happen.
2Reliability
If magnetic objects are attached to the bezel region to align rolling cycles, then the display panel is protected from damage, but the device complexity increases
Solution Approach 1:
Magnetic objects are strategically placed only in the bezel region where they are most effective for spacing control, rather than distributing magnetic elements throughout the entire structure. This localized application of magnetic properties achieves the alignment and protection function with minimal additional components, reducing overall device complexity while maintaining reliability.
3Productivity
If the rolling cycles are closely packed to maximize display area, then the device efficiency is improved, but the risk of collision and damage increases
Solution Approach 1:
The mechanical spacing system is replaced with a magnetic field-based spacing mechanism. Instead of relying on physical spacers or mechanical constraints that occupy space, magnetic attraction forces between magnetized rolling cycles maintain the required separation. This substitution allows for closer packing of cycles while actively preventing collision, thereby maximizing display area utilization without increasing collision risk.
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
This solution effectively prevents damage to the display panel structure by maintaining alignment and space between rolling cycles, ensuring the display remains functional and durable while allowing for portability and usability.
Implementation Method 1
a plurality of magnetic objects that aligns the (k)th rolling cycle with the (k-1)th rolling cycle by causing a magnetic attraction between the (k)th rolling cycle and the (k-1)th rolling cycle are attached to a bezel region of the rollable structure
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A rollable display device includes a rollable structure including a plurality of unit structures, a display panel structure attached to the rollable structure, and a plurality of magnetic objects on a bezel region of the rollable structure, wherein respective widths of the unit structures increase in a direction from a first side of the rollable structure to a second side of the rollable structure, wherein the unit structures collectively form first through (n)th rolling cycles, as the rollable structure is rolled, and a (k)th rolling cycle encircles a (k-1)th rolling cycle, and wherein the plurality of magnetic objects aligns the (k)th rolling cycle with the (k-1)th rolling cycle by causing a magnetic attraction between the (k)th rolling cycle and the (k-1)th rolling cycle.