Flexible Display Substrate Magnetic Stabilization During Cutting
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Solution Overview
Problem
Conventional methods for fabricating flexible display panels face issues with warping during cutting and binding processes, which increases difficulty and potential damage to the panels, affecting their performance.
Innovation Solution
A method involving a magnetizable rigid substrate with a magnetic polyimide gel flexible substrate, where the substrate is magnetized to attract and stabilize the motherboard during cutting, and then demagnetized for separation, preventing warping and facilitating the cutting and binding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the flexible substrate is released from the rigid substrate before cutting, then the flexible display panels can be separated, but the motherboard warps during cutting and binding processes
Solution Approach 1:
The patent applies preliminary action by maintaining the motherboard on the magnetizable rigid substrate during the cutting process. The magnetic attraction force is preserved beforehand to prevent warping, and only after cutting is complete is the substrate released. This ensures the motherboard remains stable during the critical cutting operation while still allowing eventual separation of the flexible display panels.
2Stability of the object's composition
If the flexible substrate is kept on the rigid substrate during cutting, then the motherboard remains stable, but the cutting and binding processes become more difficult
Solution Approach 1:
The patent replaces the conventional mechanical adhesion system with a magnetic field-based retention system. Instead of using mechanical clamps, adhesives, or complex fixation devices to hold the flexible substrate on the rigid substrate, the invention uses magnetic attraction force between the magnetizable rigid substrate and the flexible substrate containing magnetic particles. This substitution maintains stability during cutting while simplifying the overall manufacturing process and enabling easy release after cutting by demagnetizing the substrate.
3Stability of the object's composition
If magnetic particles are added to the flexible substrate, then warping is prevented during cutting, but the substrate structure becomes more complex
Solution Approach 1:
The patent applies local quality by adding magnetic particles only to the flexible substrate rather than modifying the entire motherboard structure or adding complex magnetic retention mechanisms. The magnetic particles are incorporated locally into the flexible substrate material, providing the necessary magnetic attraction force exactly where needed to prevent warping during cutting, while keeping the rest of the substrate structure simple and maintaining its inherent flexibility and functionality.
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 method effectively prevents warping and damage during the cutting and binding processes, improving the yield and reliability of flexible display panels by using magnetic forces to stabilize the substrate.
Implementation Method 1
When the rigid substrate is magnetized, the motherboard is cut to separate the plurality of flexible display panels from each other
Implementation Method 2
a magnetic first flexible substrate... When the rigid substrate is magnetized, the motherboard is cut
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
Flexible display substrate, flexible display panel, and display apparatus, and their fabrication methods are provided. In an exemplary flexible display substrate, a motherboard is formed on a rigid substrate that is magnetisable. The motherboard includes a magnetic first flexible substrate (1) and a plurality of flexible display panels (2) on the magnetic first flexible substrate (1) (S101). When the rigid substrate is magnetized, the motherboard is cut to separate the plurality of flexible display panels (2) from each other (S102), followed by demagnetizing the rigid substrate (S103).