Flexible Touch Screen Panel with Anti-Reflecting Layer
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Solution Overview
Problem
Conventional touch screen panels with metal sensing electrodes suffer from pattern reflection and lack flexibility, degrading display quality and being prone to cracks under physical deformation.
Innovation Solution
The touch screen panel features flexible sensing electrodes formed by patterning metal into thin wires and an anti-reflecting layer with a lower light reflecting rate, which includes materials like metal oxides, opaque organic layers, or silver salts, and can display patterns through varying anti-reflecting layer densities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal sensing electrodes are used, then conductivity and sensing performance are improved, but pattern reflection and moiré phenomena occur degrading display quality
Solution Approach 1:
The patent applies an anti-reflecting layer with black color or dark tone on the metal sensing electrodes to reduce light reflection. This color change approach minimizes the visible pattern reflection and moiré phenomena while preserving the underlying metal electrode structure and its sensing functionality.
Solution Approach 2:
The patent combines metal sensing electrodes with an anti-reflecting layer material (such as black matrix material or dark-colored coating) to create a composite structure. This composite approach maintains the electrical conductivity and sensing performance of the metal while adding the optical property of reduced reflection from the anti-reflecting layer.
2Ease of manufacture
If conventional rigid sensing electrodes are used, then manufacturing is simplified, but flexibility and resistance to physical deformation are reduced
Solution Approach 1:
The patent employs thin-film metal sensing electrodes patterned on flexible substrates, replacing conventional rigid electrode structures. This thin-film approach enables the touch screen panel to be bent or deformed without causing cracks in the sensing electrodes, while maintaining manufacturing feasibility through standard thin-film deposition and patterning processes.
3Object-generated harmful factors
If anti-reflecting layer is added to reduce pattern reflection, then display quality is improved, but device complexity increases
Solution Approach 1:
The patent integrates the anti-reflecting layer formation process with existing manufacturing steps in the touch screen panel fabrication. The anti-reflecting layer is combined with other functional layers or formed during the same processing sequence, thereby reducing the overall device complexity despite adding the anti-reflecting 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 solution enhances flexibility, minimizes visibility of sensing electrodes, reduces pattern reflection, and prevents moiré phenomena, while maintaining display quality and aesthetic appeal by using flexible metal wires and anti-reflecting layers.
Implementation Method 1
an anti-reflecting layer formed on the sensing electrodes and having a lower light reflecting rate than the sensing electrodes
Data Source
AI summary
A touch screen panel in an embodiment of the present invention includes: a substrate, sensing electrodes disposed on an active area of the substrate and formed by patterning a metal into thin wires, and an anti-reflecting layer formed on the sensing electrode and having a lower light reflecting rate than the sensing electrodes.