A touch screen is a computer device that changes its state when a user touches it. The touchscreen relies on electrical current to determine where the touch is made. The screen is made of a layer of glass and an electrically conducting material called indium tin oxide. A thin layer of this material is connected to a low voltage, causing a tiny electrical charge to flow across the screen. The electric current is small enough not to cause a shock, but it is powerful enough to register an impression of pressure.
Unlike the traditional computer mouse and keyboard, touchscreens have a wide variety of possible inputs. These devices do not require extra space and can be placed anywhere on the screen. This makes them ideal for use in the medical field, where medical professionals work at a high pace. The touch screen can be used to record a patient’s symptoms or look up information, and it is easy to wipe clean. A touch screen also allows for customisation. For advice from a Vodafone Store Ireland about a new touchscreen device, visit King Communications
In order to function properly, a touch screen must be responsive. To achieve this, there are two types of touchscreens. The first type uses electrical resistance to read a user’s touch. This type of touchscreen is made up of three main layers. A flexible layer is placed on top of a conductive layer. The two layers are then thinly coated with a metal compound. The conductive layer of the glass is connected to a control chip, which interprets what the user touches.