The mainstream of the three touch-screen technology
Electronic products, especially consumer products, how to control complex user moves into a visual, convenient and can produce the experience is user interface design challenges facing the ultimate. User interface design should take into account the users on the one hand, vision, hearing, taste, smell and touch the needs of the five senses, on the other hand have to take into account the user needs the device or system. Currently available in the market of most of the products may be effective, however, are the user's visual and tactile dealt with separately. From the computer keyboard, phone keypad, MP3 players, household appliances, such as above or even a simple TV remote control button or buttons to adjust the volume slide, the wheel and track plate [LU1] above, such as more advanced features click and scroll, the output location (that is, the user's input or control the outcome of action [LU2]) and the location of the user's input is different. If allowed to input and output, that is, the visual and tactile completely consistent, and that the number of good! Which the consistency of visual and tactile touch screen is the basic advantage.
For the visual and tactile entirely consistent to say simple, but to do it as good as for a far-reaching technological breakthroughs, which will completely change the user interaction with the way electronic products, it was known as the user interface of this revolution. Characteristics of the transparent touch screen allows the user to direct "touch" the different aspects of the screen, there is such a user interface design issue of a sigh. Because users no longer have to look for electronic equipment around this or that button, such as a computer mouse or keyboard or even dial-up phone button, but directly on the device and curing the "brains" (that is, its operating system) for interactive application. This is a revolutionary change, this approach allows the user to control the direct control of a powerful operating system and applications, all the best in the user's fingertips. Of course, we can use the mouse on the computer screen and follow-up [LU3] board access applications, but such control is not directly touching the screen, can not allow users to screen and embedded into the application. In fact, we can imagine we can all move out or to use touch-screen gestures, so that the screen became alive, as long as the eye can see, can be carried out simply by touching the interactive. Touch screen is currently divided into three categories: single-point touch; more fingers touch the direction of identification; more fingers to identify the location of touch.
Single-point touch screen
The function of touch-screen by the simple and complex development, the initial product only supports the simplest parade [LU4] control, is a finger on the touch screen to achieve that control. For example, in the annex to the supermarket every day of the POS terminals, or at the airport check-in terminals on the operation. Previously, we only by the mechanical buttons around the screen to control, single-point touch screen on the basis of the user interface to achieve a major progress. Of course, the machinery and a new capacitive touch sensor button in our homes, offices and other places everywhere: cell phones, fixed telephone, remote control, television, computer and its peripherals, game consoles, refrigerators, microwave ovens, ovens, and car radio and air-conditioning and other electronic control devices and so on. Now, as shown in Figure 1 following the single-point touch-screen display directly integrated in the user control interface, so no longer need the traditional mechanical buttons.