Despite various innovative options in touch screen technology, resistive touch screens are still the top choice of many OEMs. And, among the different types of standard resistive touch screens, 5-wire resistive touch technology is widely used in various applications and environments.
The 5-wire resistive touch screens typically consist of transparent conductive coatings inside both the top and bottom layers. At the four corners of the bottom conductive layer, electrodes are placed and connected to the flexible circuit tail of the sensor. The top layer is connected with just one wire, used as a voltage probe for the sensor, which creates a “5-wire” type of resistive touch screen. The controller sends voltage across the conductive bottom layer through the electrodes, alternately in horizontal and then vertical directions. The top layer, separated from the bottom layer by tiny spacer dots, sends the voltage in alternating X and Y planes to the controller when pressed by a touch.
5-wire resistive touch screens are considered the perfect choice because of the economical and durable solutions they offer. However, it does not deliver multi-touch capability; thus, traditionally designed 5-wire resistive touch screens do not fit many modern-age demanding applications.
In line with the many innovations introduced in the touch screen industry, A D Metro offers 5-wire resistive touch controllers with two-touch capability. This advanced solution is for applications that require resistive touch sensors but demand two-touch capability.
Two-touch resistive touch screen controller works with standard 5-wire resistive sensors delivering the two-touch capability demanded by today’s graphical user interface in applications often used in demanding environments that only resistive touch screens can withstand.
A D Metro’s two-touch 5-wire resistive touch screen controller’s board design is dimensionally identical to many common single-touch resistive controllers. Moreover, the connectors are compatible with single-touch resistive controllers, allowing seamless and easy conversion to a two-touch controller. This innovative solution facilitates faster and smoother touch operations. It allows 100 touch points per second for single touch and 70 touch points per second for a two-touch.
This two-touch controller by A D Metro brings new capabilities to the reliable and established 5-wire resistive touch technology. With this new-age technology in place, the interface is enabled with full two-touch operation capability, which is ideal for pinch, zoom, rotate and drag gestures. It efficiently supports the performance and capabilities typically linked to 5- wire resistive touch technology.
