A projected capacitive touch panel, also known as PCT or PCAP, is a type of touchscreen technology that’s widely used in various digital devices.
This technology works by creating a uniform electrostatic field across a glass panel coated with a conductive material, typically Indium Tin Oxide (ITO). The conductive elements are arranged in an X-Y grid pattern, forming a matrix behind the front layer of glass. When a finger or a conductive stylus approaches the screen, it disturbs the electrostatic field and causes a change in the capacitive field generated within the matrix. This change is detected by the touch controller, which then identifies the areas of the matrix with the greatest change and calculates the touch position(s) within the X and Y layers.
There are two types of projected capacitive touch sensing – self capacitive and mutual capacitive. Both have advantages and limitations. The benefits of mutual capacitive touch sensing have led it to become the most widely used touch technology in the world.
Projected capacitive touch panels are widely used in a variety of applications due to their sensitivity, multi-touch capabilities, and durability. Here are some of the main applications:
- Smartphones and Tablets: The majority of modern smartphones and tablets utilize projected capacitive touch technology due to its sensitivity and multi-touch capabilities.
- ATMs and Information Kiosks: Its durability and ease of use make projected capacitive touch a preferred choice for public touch screen interfaces like ATMs and information kiosks.
- Interactive Displays and Kiosks: These panels are used in interactive displays and kiosks, providing a user-friendly interface for users to interact with the system.
- Automotive Infotainment Systems: In the automotive industry, these panels are used in infotainment systems, providing a smooth and responsive user interface.
- Industrial Control Panels: In industrial settings, these panels are used in control panels, where they can withstand harsh conditions and provide reliable performance.
In T-Touch Electronics, we provide various of projected capacitive touch panels ranged from 10.1” to 55”, which could be used by car navigators, tablets, laptops, and smart hubs.
https://www.tctouch.net/products/capacitive-tp/
