Flexible Display Panel Lamination With Carrier Film Alignment
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Solution Overview
Problem
Existing technologies face challenges in efficiently profiling and laminating flexible display panels to achieve high screen-to-body ratios in OLED display devices, often resulting in alignment issues, bubbles, and reduced yield due to excessive movement and warping.
Innovation Solution
A profiling and laminating device comprising a fixture, carrier film, and driving assemblies that facilitate precise alignment and lamination of flexible display panels using a support structure, flexible wrapping structure, and magnetic attraction to ensure accurate profiling and laminating processes, reducing gaps and bubbles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If flexible display panels are moved excessively during profiling and laminating, then the panels can be positioned for processing, but alignment accuracy deteriorates and warping occurs
Solution Approach 1:
A carrier film is introduced as an intermediary substrate to carry the flexible display panel throughout the profiling and laminating process. The panel is fixed on the carrier film, which provides a stable base that prevents warping and maintains alignment accuracy while enabling easy positioning and movement of the panel assembly.
Solution Approach 2:
The processing system is divided into separate functional modules: a fixture with support structures for positioning, a carrier film for carrying the panel, and a lamination device. This segmentation allows each component to perform its specific function optimally - the fixture provides positioning, the carrier film prevents warping, and the lamination device performs the bonding operation.
2Device complexity
If the fixture structure is simplified, then device complexity is reduced, but profiling quality and alignment accuracy deteriorate
Solution Approach 1:
The fixture is designed with multi-functional support structures that serve multiple purposes: providing mechanical support for the carrier film, enabling precise positioning of the flexible display panel, and facilitating the profiling operation. This multi-functionality achieves high profiling quality without requiring a complex multi-component system.
3Strength
If lamination pressure is increased, then bonding strength is improved, but bubbles and defects in the display module increase
Solution Approach 1:
The flexible display panel is pre-fixed onto the carrier film before the lamination process. This preliminary action ensures the panel is stable and properly positioned, allowing lamination to proceed with controlled pressure that achieves sufficient bonding strength without creating bubbles or defects.
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 enhances the profiling quality and alignment accuracy of flexible display panels, improving the screen-to-body ratio and yield of the display module by minimizing gaps and bubbles during the laminating process.
Implementation Method 1
The first extending portion is configured to generate magnetic attraction force after being energized, and the carrier film is configured to be attracted by the magnetic attraction force generated by the first extending portion
Data Source
AI summary
A profiling and laminating device includes: a fixture, a carrier film, a first driving assembly and a second driving assembly. The fixture includes a first main surface, a curved transition surface and a second main surface that are connected in sequence, and the first main surface and the second main surface are located on two opposite sides of the fixture, respectively. A surface of the carrier film is used for carrying a flexible display panel, and another surface of the carrier film is used for covering at least the first main surface and the second main surface of the fixture. The first driving assembly is used for driving the fixture to move. The second driving assembly is used for driving the carrier film to move.