A Flexible Multi-Functional Touch Panel for Multi-Dimensional Sensing in Interactive Displays Elements in Flexible and Large-Area Electronics Series

Touch screen panels (TSPs) have become an integral part of modern-day lifestyle. To enhance user experience, attributes such as form-factor flexibility, multi-dimensional sensing, low power consumption and low cost have become highly desirable. This Element addresses the design of multi-functional TSPs with integrated concurrent capture of ubiquitous capacitive touch signals and force information. It compares and contrasts interactive technologies and presents design considerations for multi-dimensional touch screens with high detection sensitivity, accuracy and resolution.

1. Human–machine interaction related technologies in interactive displays; 2. Reviews on capacitive touchscreen and piezoelectric related technologies; 3. Mechanical and electrical analysis of interactive stack-ups; 4. Fabrication and measurement of flexible multi-functional touch panels; 5. Algorithms for force touch signal; 6. Conclusion and future work.