Ferromagnetic Display Panel Bending to Prevent Curved-Area Damage
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Solution Overview
Problem
Existing display devices struggle to efficiently manufacture flexible and bent structures for mobile electronic devices, as current methods often result in damage to the display panel during the bending process and do not effectively utilize the ferromagnetic layer for shape transformation.
Innovation Solution
A display device comprising a ferromagnetic layer made of materials like iron, nickel, or cobalt, and a display panel with a curved area, where the ferromagnetic layer is used in conjunction with an electromagnet to bend the panel, and an anti-magnetization layer is optionally included to prevent damage from magnetic forces, allowing for the creation of various shapes and increased display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional manufacturing methods are used to create bent display structures, then the display device can achieve flexible shapes, but the display panel is damaged during the bending process
Solution Approach 1:
The ferromagnetic layer is deposited on the display panel before the bending process. This preliminary action enables controlled magnetic field interaction that guides the bending process, preventing damage to the display panel while achieving the desired bent shape.
Solution Approach 2:
The ferromagnetic layer acts as an intermediary between the electromagnetic actuator and the display panel. It mediates the bending process by responding to electromagnetic fields, enabling controlled shape transformation without direct mechanical force that could damage the display panel.
2Productivity
If the ferromagnetic layer is used for shape transformation, then the bending process becomes more efficient, but magnetic forces may damage the display panel
Solution Approach 1:
The ferromagnetic layer is selectively deposited only in specific regions where shape transformation is needed, rather than uniformly across the entire display panel. This localized approach enables efficient bending control while minimizing exposure to harmful magnetic forces in non-bending areas.
Solution Approach 2:
The ferromagnetic layer serves as a protective intermediary that concentrates and directs magnetic forces only where needed for shape transformation, preventing diffuse magnetic forces from damaging the display panel while maintaining bending efficiency.
3Ease of manufacture
If a flat display panel is used, then the manufacturing process is simpler, but the display area and aesthetic appeal are limited
Solution Approach 1:
The display panel transitions from a static flat state to a dynamic bent state through controlled electromagnetic actuation of the ferromagnetic layer. This enables the display area to be expanded in three-dimensional space while maintaining manufacturing simplicity through a standardized deposition process.
Solution Approach 2:
The display panel is transformed from a two-dimensional flat surface to a three-dimensional bent structure by utilizing the electromagnetic response of the ferromagnetic layer. This dimensional transformation increases the effective display area and aesthetic appeal without complicating the base manufacturing process.
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 enables the production of flexible and bent display devices with reduced risk of damage during manufacturing, allowing for a range of shapes and improved aesthetics by effectively utilizing the ferromagnetic layer for shape transformation and protecting the display panel from magnetic forces.
Implementation Method 1
disposing the display substrate over a shape transformation device including an electromagnet, and bending the display substrate, where the bending the display substrate includes applying a current to the electromagnet
Implementation Method 2
a ferromagnetic layer including a ferromagnetic material
Data Source
AI summary
A display device includes a ferromagnetic layer including a ferromagnetic material, a cover window disposed above the ferromagnetic layer, and a display panel disposed between the ferromagnetic layer and the cover window, where the display panel includes a curved area which is bent.