The Role of Conductive Coatings in Capacitive Touchscreens

Conductive coatings play an important role in capacitive touchscreens. Whether it's a smartphone, tablet, human machine interface (HMI) or any other capacitive touchscreen, it will likely have at least one conductive coating. You typically won't be able to see it. Nonetheless, the conductive coating is essential to a capacitive touchscreen's operations. To learn more about conductive coatings and how they work in capacitive touchscreens, keep reading.

What Is a Conductive Coating?

A conductive coating is a thin layer of an electrically conductive material or substance that's added to an existing layer. Most touchscreens are made of multiple layers - and capacitive touchscreens are no exception. In a capacitive touchscreen, some of these layers may feature a conductive coating. Conductive coatings are synonymous with capacitive touchscreens. All capacitive touchscreens, including surface capacitance and projected capacitance, have a conductive coating.

Conductive Coating Properties

For a coating to be considered conductive, it must exhibit a high level of electrical conductivity. What does this mean exactly? A high level of electrical conductivity means that electricity can easily flow through it. Some materials have a low level of electrical conductivity. These electrically resistive materials disrupt the flow of electricity. Conductive materials, on the other hand, allow electricity to easy travel through them.