Double-Side Display Backplate Alignment via Stiffener Integration
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Solution Overview
Problem
In the manufacturing of flexible full-screen display modules, the bending process often results in misalignment and poor arc shape due to inaccuracies in the alignment of backplates, leading to reduced product quality.
Innovation Solution
A double-side display panel and backplate structure that includes a stiffener with the first and second backplates aligned with its edges, optionally integrated with a heat dissipating copper/graphite foam composite material, and made from materials like polyethylene terephthalate or cyclic olefin polymer, ensuring precise alignment and parallelism during the bending process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a bending process is used to manufacture flexible full-screen display modules, then the display can be made flexible and foldable, but misalignment between backplates and poor arc shape occur due to process inaccuracy
Solution Approach 1:
The patent applies preliminary action by pre-aligning the backplates on a flat surface before the bending process. The backplates are positioned and fixed in their correct relative positions while the structure is still flat, ensuring that the alignment is established before any bending occurs. This prevents misalignment during the folding process, as the backplates maintain their predetermined positions even when bent.
Solution Approach 2:
The patent utilizes parameter changes by transitioning the backplate structure from a flat state to a bent state. The alignment is established in the flat configuration, and then the entire structure is bent to the desired angle. This parameter change (from flat to bent) allows the backplates to maintain their alignment relationship while achieving the required flexibility and foldability.
2Manufacturing precision
If backplates are aligned during manufacturing, then alignment accuracy improves, but the structure becomes more complex and harder to assemble
Solution Approach 1:
The patent applies merging by integrating the alignment function into the backplate structure itself. Instead of using separate alignment mechanisms or additional components, the backplates are designed with features that enable direct alignment with each other. The backplates are fixed to each other in a predetermined aligned state, combining the alignment and structural functions into a single integrated assembly, thereby maintaining simplicity while achieving high alignment accuracy.
3Stability of the object's composition
If the backplate structure is made rigid to maintain alignment, then alignment stability improves, but the flexibility and foldability of the display is reduced
Solution Approach 1:
The patent applies dynamics by creating a structure that is rigid in its flat state for maintaining alignment stability, but can dynamically transition to a bent state for flexibility. The backplates are firmly fixed to each other to ensure stability during assembly and in the flat configuration, but the entire structure can be bent to the desired angle. This dynamic behavior allows the structure to switch between stable alignment (flat) and flexible (bent) states as needed.
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 solution ensures accurate alignment and parallelism of backplates, improves the arc shape, and enhances the reliability of the product by stabilizing the radius accuracy, preventing misalignment and poor arc shapes post-bending.
Implementation Method 1
a heat dissipating material disposed between the first backplate and the stiffener
Data Source
AI summary
A double-side display panel, a backplate structure of the same, and a method of manufacturing the same are provided. The backplate structure of double-side display panel includes a first backplate, a stiffener, and a second backplate. The first backplate is fixed on one surface of the stiffener. The second backplate is fixed on another surface of the stiffener. An edge of the first backplate, an edge of the stiffener, and an edge of the second backplate are aligned with each other.