Research Paper:
Metal Mesh vs ITO in Projected-capacitive
touch screens
Performance Comparison through Measurements and Simulations
Get this free research study by Fieldscale & PolyIC to learn about the performance of a double-layer projected-capacitive metal-mesh touch screen compared to a sensor of the same type and layout made of ITO, in terms of capacitance values and their sensitivity to finger presence.
Traditionally, the conductive electrodes of projected-capacitive sensors in touch screens are made of ITO (Indium Tin Oxide) due to its high optical transmittance and reasonable electrical conductivity.
However, the market needs for larger, flexible and curved touch screens are driving manufacturers to replace ITO with metal mesh electrodes.
The results were produced by using both measurements and simulations of capacitance values. Measurements took place in the Testing Labs of PolyIC GmbH & Co. KG, while simulations were performed using Fieldscale SENSE, our simulation software for touch sensor design.
To get the conclusions of the study, download the full research paper.