Shop 27A, 25, G/F., New Capital Computer Plaza, 85-95 Un CHau St., Sham Shui Po, Kowloon, Hong Kong
(852) 2720 6007
| Introduction: | |
| Touch Screen is an interactive input device integrated onto electronic display. The operator can simply give the instruction by touching the touch screen. | |
| Resistive Type | Consists of two conductive layers. The top layer is ITO film while the bottom layer can be either ITO film or ITO glass. The top layer is suspended by very small spacer dots and the smallest dot. When the operator touches the touch screen, the conductive inner surface of the ITO film makes contact with the conductive coating on the top surface of the ITO film or ITO glass. Then, the controller senses the touch and passes the information to the corresponded IC. |
| Infrared Type : | Infrared technology uses infrared emitter-collector pairs to
project aninvisible grid of light a small distance over the surface
of the screen. When abeam is interrupted, the absence of the signal at the collector is detectedand converted to an X/Y touch coordinate. |
| Capacitive Type : | Is an all-glass touch screen with double side transparent
conductive coating. There is electrode pattern printed along the
edges distributes a low voltage field over the conductive layer. When a finger touches the screen and draws a minute amount of current to the point of contact, creating a voltage drop. The current flow from each corner is proportional to the distance to the touch point. The X/Y location of the point of contact is calculated by the controller and transmitted to the computer. |
Touch Screen is the preferred choice in many applications: Kiosk, Monitor, Public access, POS (Point of Sale), Industrial
controls, Information Center Directory, | |
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