Flexible Display Panel Magnetic Support Layer Wrinkle Control
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Solution Overview
Problem
Flexible display panels experience reduced display effect due to wrinkles formed during the bending and unfolding process, caused by relative sliding between the mechanical connecting portion and the display panel.
Innovation Solution
A flexible support layer with magnetic balls is attached to the bent region, featuring a heating layer that expands the magnetic balls when the panel is unfolded, increasing the support layer's hardness and preventing sliding, thus maintaining a flat surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a mechanical connecting portion is provided on the bent region to support the non-bent regions, then the structural support is improved, but relative sliding occurs between the mechanical connecting portion and the display panel during bending and unfolding, causing wrinkles and reducing display quality
Solution Approach 1:
The patent replaces the mechanical connecting portion with a magnetic connecting portion that uses magnetic attraction force instead of mechanical contact. The magnetic connecting portion includes a first magnetic piece on the bent region and a second magnetic piece on the non-bent regions, which attract each other to provide support without causing relative sliding or wrinkles on the display panel surface.
Solution Approach 2:
The patent changes the physical state and properties of materials through temperature control. The flexible support layer contains a heat-activatable adhesive that transitions from a soft state at room temperature (allowing bending) to a hardened state when heated (preventing sliding and maintaining flatness during unfolding).
2Ease of operation
If the flexible support layer is soft at room temperature to allow bending, then the ease of operation is improved, but the support layer cannot prevent sliding and maintain flatness during unfolding
Solution Approach 1:
The patent makes the flexible support layer dynamically changeable in its mechanical properties. The layer transitions from a soft, flexible state at room temperature (enabling easy bending) to a hard, rigid state when heated (enabling sliding prevention and flatness maintenance). This dynamic property change is achieved through heat-activatable adhesive that cures or hardens upon heating.
Solution Approach 2:
The patent changes the physical state and properties of materials through temperature control. The flexible support layer contains a heat-activatable adhesive that transitions from a soft state at room temperature (allowing bending) to a hardened state when heated (preventing sliding and maintaining flatness during unfolding).
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 flexible support layer enhances the display effect by preventing wrinkles and ensuring a flat surface during bending and unfolding, improving the overall display quality.
Implementation Method 1
a heating layer is provided on the flexible base, the heating layer is configured to heat the magnetic balls when the display panel body is in the unfolding state, and each of the magnetic balls expands with heat
Data Source
AI summary
A flexible display panel and a flexible display apparatus. The flexible display panel includes a display panel body having a bent region and non-bent regions, and a flexible support layer attached to the shady surface of the bent region, the flexible support layer includes a flexible base and a heating layer, a plurality of magnetic balls are provided in the flexible base; where the heating layer is provided on the flexible base for heating the plurality of magnetic balls, the plurality of magnetic balls are expanded with heat to enable the hardness of the flexible support layer when the display panel body is in an unfolded state to be greater than the hardness of the flexible support layer when the display panel body is in a bent state. The flexible display panel will not be wrinkled during the bending and unfolding process, and has an improved display effect.