Touch screen controllers are electronic components that are used to interface with touch screen displays. A touch screen is a type of display that can sense the presence and location of a touch within the display area. Touch screen controllers are typically used in devices that have touch screen displays, such as smartphones, tablets, and point-of-sale terminals. They provide the interface between the touch screen and the device's main processor, allowing the device to detect and respond to touch events. Touch screen controllers are available in a variety of form factors, including standalone chips, modules, and integrated circuits that are embedded on the display's circuit board. They are commonly used in a wide range of applications, including consumer electronics, industrial automation, and medical devices.