Flexible Display Edge Bending with Pre-formed Support Plate
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Solution Overview
Problem
The preparation of foldable display apparatuses with curved edges often faces issues of film cracking and peeling due to the high rebound force of flexible display modules, which is exacerbated by the need for a balance between maintaining a bending shape and ensuring impact resistance.
Innovation Solution
A method involving a flexible display module with a rigid supporting plate, where the edge of the supporting plate is bent to match the bending shape of the display module, and an adhesive layer with reduced viscosity upon light or heat exposure is used to securely attach the supporting plate, allowing for easy removal and maintaining the bending shape without causing peeling or cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the flexible display module is bent to form a curved edge for appearance beautification, then the aesthetic appearance is improved, but film cracking and peeling occur due to high rebound force
Solution Approach 1:
The patent applies preliminary action by pre-bending the rigid supporting plate to match the desired curved edge shape before assembling the flexible display module. This pre-formed support structure is then positioned behind the flexible display module, providing continuous support during the high-rebound bending process to prevent film cracking and peeling while maintaining the aesthetic curved shape.
2Stability of the object's composition
If a rigid supporting plate is used to maintain bending shape, then the bending shape stability is improved, but the complexity of the preparation process increases
Solution Approach 1:
The patent uses the rigid supporting plate as an intermediary element that simplifies the overall process. By introducing this intermediate support component with pre-formed curvature, the system achieves stable bending shapes without requiring complex real-time control mechanisms or multiple assembly steps. The supporting plate mediates between the flexible display module and the final curved shape, making the preparation process more straightforward.
3Ease of operation
If the adhesive layer viscosity is reduced by light or heat exposure for easy plate removal, then the ease of operation is improved, but the bonding strength during assembly may be compromised
Solution Approach 1:
The patent applies dynamics by using an adhesive layer whose viscosity can dynamically change in response to external stimuli (light or heat). During assembly, the adhesive maintains high viscosity to ensure strong bonding between the rigid supporting plate and the flexible display module. When removal is needed, light or heat exposure triggers a viscosity reduction, enabling easy plate separation without damaging the flexible display module.
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 balances the rebound force of the flexible display module, preventing film peeling and cracking while maintaining the desired bending shape, thus enhancing the durability and appearance of foldable display apparatuses.
Implementation Method 1
a viscosity of a material of the adhesive layer is reduced after being exposed to light or heated
Data Source
AI summary
A preparation method of a display apparatus and the display apparatus are provided, the method and the apparatus are relating to a field of display technologies, an edge of at least a side of a flexible display module of the display apparatus is bent to a back side of the flexible display module to form a first bending portion; the preparation method includes providing a flexible display assembly, which includes a flexible display module and a first supporting plate fitted to a display surface of the flexible display module; the first supporting plate is made of a rigid material; an edge of at least a side of the first supporting plate is bent toward a side where the flexible display module is located to form a second bending portion.