Flexible Color Display Module Fabrication via Laser Release
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Solution Overview
Problem
Conventional methods of fabricating electro-phoretic display panels result in parallax issues due to misalignment between the color filter and the display medium layer, leading to decreased image quality and process yield.
Innovation Solution
A method involving the formation of a flexible color display medium module where a color filter film and a display medium layer are sequentially formed on a flexible substrate separated from a rigid substrate, using techniques like laser releasing, with a light-shielding layer and specific color filter patterns to improve alignment and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a color filter is assembled on the electro-phoretic film separately, then the manufacturing process is simplified, but alignment accuracy between the color filter and display medium layer deteriorates
Solution Approach 1:
The patent combines the color filter layer and display medium layer into a single integrated structure formed on the flexible substrate. This merging eliminates the separate assembly step that causes misalignment, while maintaining manufacturing efficiency through one-step formation of both layers with inherent alignment.
Solution Approach 2:
The color filter patterns and display medium structures are formed in advance on the flexible substrate before final assembly. This preliminary formation ensures precise positioning and alignment are built into the structure during fabrication, preventing misalignment issues during later assembly steps.
2Reliability
If the flexible substrate is formed on a rigid substrate, then manufacturing stability is improved, but separation complexity increases
Solution Approach 1:
The patent replaces mechanical separation methods with laser releasing technology. The laser provides precise, contactless separation of the flexible substrate from the rigid substrate, eliminating complex mechanical manipulation and reducing the overall separation process complexity while maintaining manufacturing stability.
3Device complexity
If conventional assembly methods are used, then process simplicity is maintained, but process yield deteriorates
Solution Approach 1:
By merging the formation of color filter patterns and display medium structures into a single integrated process on the flexible substrate, the patent eliminates misalignment defects that reduce yield. The combined formation approach maintains process simplicity while significantly improving process yield through inherent alignment accuracy.
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 approach enhances the accuracy of aligning the color filter and display medium layers, reduces parallax, and improves the process yield and capacity of flexible display panels, resulting in higher image resolution and reduced light mixing.
Implementation Method 1
the method of separating the flexible substrate from the rigid substrate comprises laser releasing method
Data Source
AI summary
A method of fabricating the flexible color display medium module includes the steps of: forming a flexible substrate on a rigidly substrate; forming a color filter film comprising a plurality of color filter patterns; forming the display medium layer on the color filter film; and separating the flexible substrate from the rigidly substrate. Since the display medium layer is immediately disposed on the color filter film, the accuracy of aligning the display medium layer and the color filter film may be improved and the parallax resulted from the light passed through the display medium layer and the color filter film may be reduced.