Automotive Engineering - November/December 2018 - Intro
Design better touchscreens with simulation.
Visualization of electrode arrays in a capacitive touchscreen sensor and
the log of the electric ﬁeld norm when a ﬁnger touches the screen.
Many touchscreens developed for modern cars rely on capacitive
sensing. Electrodes are embedded in a dielectric material,
such as glass, and a voltage diﬀerential is applied, creating an
electrostatic ﬁeld. When someone touches the screen, the ﬁelds
and capacitance change, and the device senses what part of the
screen is being touched. To design better touchscreens, you can
use simulation to accurately model the electrodes, surrounding
metallic housing, and other dielectric objects.
The COMSOL Multiphysics® software is used for simulating
designs, devices, and processes in all ﬁelds of engineering,
manufacturing, and scientiﬁc research. See how you can apply it to
analyzing capacitive touchscreens for use in automotive designs.
Free Info at http://info.hotims.com/70472-626