Back to Blog

Hand of young woman pointing at screen of alarm system panel with lock sign hanging on wooden wall in living room; The Science Behind Touch Screens

The Science Behind Touch Screens: How Do They Really Work?

January 30, 2024

Projected Capacitive vs. Resistive Touch Screens

Touch screens have revolutionized the way we interact with technology, bringing information to our fingertips with ease. But have you ever wondered how they actually work? Let’s dive into the fascinating science behind touch screen technology, exploring the principles behind two of the most common types: resistive and projected capacitive touch screens.

Resistive Touch Screens

Resistive touch screens consist of two electrically conductive layers separated by spacers. When pressure is applied, the layers bend to touch each other, altering the electrical current flowing through them. This change in current allows the device to detect the touch location and execute the corresponding function. While resistive touch screens are reliable, they can only handle single touches at a time, making them ideal for simple, quick-use electronics.

Projected Capacitive Touch Screens

Projected capacitive touch screens, on the other hand, detect touch based on changes in electrical flow caused by anything holding an electrical charge, including human skin. These screens are made of conductive materials that form a grid of transparent conductors. When a finger touches the screen, it completes an electrical circuit, leading to a voltage drop at the touch location, triggering the associated action.

Touch Screens with Fortec US

Understanding the underlying principles of touch screen technology and how they work sheds light on the incredible innovation behind these ubiquitous devices. Whether it’s resistive or projected capacitive, each type offers unique benefits and applications, shaping the way we interact with our digital world. At Fortec US, we specialize in delivering cutting-edge touch screen solutions tailored to meet the diverse needs of our clients. 

Contact Us Today to Learn More About Our Custom Digital Screen Solutions!

As the global leader in optical bonding, Fortec US supports you in all project phases – from the construction of the metal housing and procurement of specific parts to the in-house development of controller boards and touchscreen integration. In need of a product, part, or have a project in mind? Contact us today at (631) 580-4360 or on our website for more information.

Make sure to follow us on Facebook, LinkedIn, and Twitter!

Newsletter Signup

Sign up to our monthly newsletter to keep up to date with all the latest product news, industry updates and new developments.