TEST CASE
Metal Mesh Projected-Capacitive Touch Screens Simulated with Fieldscale SENSE
A Simulation-based study
Indium Tin Oxide (ITO) VS Metal Mesh in Mutual-Capacitive Touch Sensors
Sensor electrodes are typically made of Indium Tin Oxide (ITO) due to its high optical transmittance.
Although widely used, ITO is nowadays losing ground to alternatives, due to the following disadvantages:
- limited supply
- considerable cost
- inflexibility, not suitable for wearables and flexible touch screens
- high resistivity, slow response; not suitable for large touch screens
Simulation with SENSE
In this use case, we researched the following:
- influence of line width
- influence of line pitch
- influence of cover glass thickness
- influence of cover glass permittivity
in mutual capacitance response.
Conclusions
Read the full report to see the conclusions. Click the button below.