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Q. What is a Touchscreen?

A. Touchscreen is a combination of a sensor, controller, cable and drivers that allow any user of any computer experience to use a specifically designed application.

Q. What is Resistive Touch technology?

A. Resistive touch technology consists of a glass or like panel that is coated with electrically conductive and resistive layers. The thin layers are separated by invisible separator dots. While turned on, an electrical current moves through the screen casting a sort of net across the monitor face. When you touch the screen (creating pressure) the layers are pressed together, causing a change in the electrical current and a touch command to be registered. Reliability is impressive because resistive touch screens do not have to be recalibrated when environmental conditions change. Resistive-type touch screens are usually the most practical. Resistive screens are extremely durable and can withstand the harshest of environments. Resistive technology is the "work horse" of touch technologies.

This type of screen is recommended for point of sale systems-kiosks (POS), restaurant registers, control or automation systems, medical use, hospitality kiosks, grocery/convenience, standard kiosks and others.

Q. What is Capacitive Touch technology?

A. Capacitive Touch screen consists of a glass panel with a capacitive (charge storing) material coating its surface. Circuits located at corners of the screen measure the capacitance of a person touching the overlay. Frequency changes are measured to determine the X and Y coordinates of the touch command.

Capacitive type touch screens are very durable and have high clarity. They are used in a wide range of applications, from restaurant and point of sale (POS) use, to industrial controls and information kiosks.

Q. What are Surface Acoustic Waves?

A.Surface Acoustic Wave touch-screens consist of a clear glass overlay. Each axis on the overlay has a transmitting and receiving piezoelectric transducer and a set of reflector stripes. The controller sends a 5-MHz burst to the transmitting transducers which convert the signal into surface waves. These are mechanical waves that propagate on the surface of materials such as glass. When the touch-screen it touched, a portion of the wave is absorbed by the finger. This is (somehow) converted to X-Y coordinates by the controller. These touch-screens are very clear since there is nothing but glass. They are bright, stable, can withstand temp, humidity, etc changes. Scratches do not affect the SAW touch-screens but they are do not work well when liquid comes in contact with the screen.

Q. What can I use to clean the Touchscreen?

A. It can be cleaned with regular glass cleaner, do not spray the liquid directly on the screen.

Q. Can I use both my Touchscreen and mouse at the same time?

A. Yes, all drivers can work in coexistence with Touchscreen drivers.

WELCOME to the YUNDAI website for innovative, high quality Industrial Computer Products and Solutions from leading-edge worldwide manufacturers. We are a manufacturer and supplier of touch-panel LCD in Taiwan.

Yundai ezTouch designs and manufactures specialty LCD touchscreen monitors and related products for the Medical Displays, ATM Machines, Industrial Test Equipments, Embedded Displays, Digital Signage Displays, Fine Instrumentations, Gaming Displays, Control Panels and Keypads

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