Flexible Display Unit Edge Straightening via Electromagnets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flexible display units in mobile terminals suffer from poor flatness when unrolled and are prone to distortion due to restitutive forces when rolled back into their main bodies, limiting their usability and functionality.
Innovation Solution
Incorporating a flexible display film with insulated edges and strategically placed electromagnets that stiffen the edges when unrolled to maintain flatness and a stopper to prevent complete rolling, allowing for smooth retraction into the main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the flexible display unit is rolled into the main body for storage, then the portability and compactness of the mobile terminal is improved, but the display unit may be distorted by restitutive force and cannot maintain flatness when unrolled
Solution Approach 1:
The electromagnets are pre-installed on the flexible display unit edges at predetermined intervals before use. When the display unit is unrolled, these pre-positioned electromagnets automatically activate to generate magnetic forces that straighten the edges, maintaining flatness without requiring external intervention or complex mechanical structures.
Solution Approach 2:
The patent replaces complex mechanical straightening mechanisms with electromagnetic forces. Instead of using mechanical springs, cams, or guide structures to maintain flatness, the invention uses electromagnets that generate magnetic attraction/repulsion forces to straighten the display edges, simplifying the overall structure while achieving the desired effect.
2Area of stationary object
If the flexible display unit is made larger to provide more display area, then the usability and information reception capability is improved, but the device becomes more difficult to store compactly in the main body
Solution Approach 1:
The flexible display unit is designed to be nested within the main body when not in use, similar to nested dolls. The display can be rolled up into a compact cylinder that fits inside the mobile terminal housing, allowing large display areas to be stored compactly without requiring complex external storage mechanisms.
Solution Approach 2:
The display unit transitions between a static rolled-up state for storage and a dynamic unrolled state for use. The flexible material allows the display to be easily rolled and unrolled, providing adaptability between compact storage and full display functionality without requiring complex mechanical transformations.
3Adaptability or versatility
If the flexible display unit uses a thin plastic display panel instead of glass, then the flexibility and rollability are improved, but the flatness when unrolled deteriorates compared to rigid glass panels
Solution Approach 1:
The patent changes the physical parameters of the display edges by using electromagnets to alter the spacing and alignment of the edges when unrolled. The electromagnetic forces adjust the edge positions to maintain uniform spacing and flatness, compensating for the inherent flexibility of the plastic panel material.
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 ensures the flexible display unit remains straight and flat when unrolled, addressing distortion issues and enabling smooth rolling back into the main body, thereby enhancing user experience and functionality.
Implementation Method 1
a plurality of electromagnets formed in the display unit edges at predetermined intervals, for straightening the display unit edges by magnetic forces when the display film is unrolled to the outside of the main body
Data Source
Figure 1~2
Figure 3~5
AI summary
A flexible display unit and a mobile terminal having the same are disclosed. The flexible display unit includes a flexible display film, insulated flexible display unit edges formed at two opposite edges of the display film, and a plurality of electromagnets formed in the display unit edges at predetermined intervals. The two opposite edges of the flexible film are straightened by magnetic forces when the display film is unrolled to the outside of a main body of the mobile terminal. Accordingly, a problem of the flexible display unit not being flat or being distorted may be solved. Additionally, the flexible display unit of the present invention is smoothly rolled into the main body in the same manner as in a conventional flexible display unit, because the flexibility of the flexible display unit of the present invention is recovered by removing the magnetic forces when rolling the flexible display unit into the main body.