Touch Screen Displays
By Kent PinkertonCategory : Monitors
A touch screen display is a touch sensitive input device that
performs both the functions of the video display unit and the input
devices (keyboard and mouse). Touch screens have been very popular
in the past few years and we can see them all over malls, airports,
fast food restaurants, and ATMs.
Touch screen technology has been around since the 1970s and there
are several companies that manufacture touch screen equipments. A
touch screen saves a lot of space and maintenance and this has made
them popular for information kiosks. These touch screen displays
come either in the form of touch screen monitors or add-on panels
that are fixed over a regular display monitor.
A touch screen display has three primary components that allow it to
function: the touch sensor, the controller, and the software driver.
The software driver is the application program that transcribes
touch sensations into commands and communicates with the operating
system installed on the computer. The controller is a PC card that
connects the touch sensor to the PC. It is a small gadget that
translates information from the touch sensor into information that
is comprehensible to the PC.
There are several touch sensitive technologies applied in
manufacturing touch-screen displays. The display can be based from
resistive, capacitive, or surface wave sensory technology. A
resistive touch screen display is one where a thin metallic
resistive layer acts as the main sensory layer. The layer poses
resistance to touch and transmits it as an electrical pulse. In
contrast to this, the capacitive touch screen display uses the
capacitive tendency of the human body to cause interference in its
own capacitive layer and sense touch. The other alternative, the
surface wave touch screen, uses ultrasonic waves. These waves pass
over the touch panel. Some waves are absorbed when a user touches
the screen. This wave alteration registers the touch event and the
location.
Touch screen technology uses advanced principles of physics but the
touch screen simplifies communication tremendously. With
user-friendly operation and an attractive interface, touch screen
displays are highly preferred for games, training, and at
information desks.
Touch Screens provides detailed information on Touch Screens, Touch Screen Monitors, Touch Screen Displays, Touch Screen LCD and more. Touch Screens is affiliated with Internet Kiosks
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