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Projected Capacitive Touch (PCT) is a type of capacitive sensing technology used in touchscreens. It is a two-layer system consisting of a conductive layer and a sensing layer. The conductive layer is typically made of copper and the sensing layer is made of a transparent material such as indium tin oxide (ITO). When a finger or other conductive object touches the screen, the capacitance of the sensing layer changes, which is detected by the conductive layer. This change in capacitance is then used to determine the position of the touch.
PCT technology is used in a variety of applications, including smartphones, tablets, and other consumer electronics. It is also used in industrial and medical applications, such as medical imaging and industrial automation. PCT technology is becoming increasingly popular due to its high accuracy and sensitivity, as well as its ability to detect multiple touches simultaneously.
Some companies in the PCT market include Synaptics, Cypress Semiconductor, Atmel, and STMicroelectronics. Show Less Read more
