The 5 Types Of Touch Screen Technology. Which （5类型的触摸屏技术。）.pdf

The 5 Types Of Touch Screen Technology. Which One Is Best For You? Touch Screens have become very commonplace in our daily lives: cell phones, ATM’s, kiosks, ticket vending machines and more all use touch panels to enable the user to interact with a computer or device without the use of a keyboard or mouse. But did you know there are several uniquely different types of Touch Screens? The five most common types are: 5-Wire Resistive, Surface Capacitive, Projected Capacitive, SAW (Surface Acoustic Wave), and Infrared. Below is a basic description of each technology, and the advantages/disadvantages of each to help you decide which touch screen type is most appropriate for your needs: Resistive Touch 5-Wire Resistive Touch is the most widely used touch technology today. A resistive touch screen monitor is composed of a glass panel and a film screen, each covered with a thin metallic layer, separated by a narrow gap. When a user touches the screen, the two metallic layers make contact, resulting in electrical flow. The point of contact is detected by this change in voltage. Advantages: • Can be activated with virtually any object (finger, stylus, gloved hand, pen, etc.) • Has tactile feel • Lowest cost touch technology • Low power consumption • Resistant to surface contaminants and liquids (dust, oil, grease, moisture) Disadvantages: • Lower image clarity compared to other touch technologies • Outer polyester film is vulnerable to damage from scratching, poking and sharp objects Surface Capacitive Surface Capacitive are the second most popular type of touch screens on the market. In a surface capacitive touch screen monitor, a transparent electrode layer is placed on top of a glass panel, and covered by a protective cover. When