Rollable Display Device With Magnetic Bending Limit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional rollable display devices face challenges in preventing damage to the display panel when rolled, as excessive bending can lead to stress and deterioration, necessitating a solution to maintain the display's integrity while allowing for portability and usability.
Innovation Solution
A rollable display device design featuring a rollable structure composed of unit structures with metal plates and magnetic objects, where the metal plates are bent by a specific angle to prevent excessive folding, and the magnetic objects cause attraction between adjacent units, maintaining an angle greater than or equal to the bending limit angle to minimize stress on the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rollable structure is made flexible to enable rolling, then portability is improved, but the display panel becomes susceptible to damage from excessive bending
Solution Approach 1:
The patent applies preliminary action by pre-defining the bending limit angle and configuring the magnetic objects to engage at this specific angle before excessive bending occurs. The magnetic attraction force is prepared in advance to prevent the display panel from being bent beyond its safe limit, thus protecting the panel integrity while enabling rolling functionality.
2Reliability
If the bending angle is restricted to protect the display panel, then display integrity is improved, but the rolling flexibility is reduced
Solution Approach 1:
The patent applies parameter changes by precisely controlling the bending angle parameter through the magnetic attraction mechanism. The magnetic objects are positioned to create attraction forces that naturally limit the bending angle to a safe value, transforming the rigid constraint into a dynamically controlled parameter that protects the display while maintaining rolling capability.
3Reliability
If magnetic objects are added to limit bending angle, then display protection is improved, but device complexity increases
Solution Approach 1:
The patent applies self-service by designing a system where the magnetic objects automatically engage and disengage based on the bending angle without requiring external control mechanisms. The magnetic attraction force self-regulates the bending limit, eliminating the need for complex sensors, motors, or control circuits, thus protecting the display while maintaining structural simplicity.
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 design effectively prevents damage to the display panel by limiting the rollable structure's bending angle, ensuring the display remains functional and durable while allowing for easy rolling and unrolling, thus achieving both portability and usability.
Implementation Method 1
a magnetic object configured to cause a magnetic attraction for an adjacent metal plate
Data Source
AI summary
A rollable display device includes a rollable structure including a plurality of unit structures, the rollable structure being rollable and unrollable based on the unit structures, and a display panel structure attached to 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, the first side of the rollable structure being opposite to the second side of the rollable structure, and wherein each of the unit structures includes a metal plate, the metal plate being bent by a bending limit angle in a direction in which the rollable structure is rolled, and a magnetic object on a side region of the metal plate, the magnetic object being magnetically coupled to an adjacent metal plate.