Most of the products currently on the market, although effective, are mainly handled by the user's visual and tactile nature. More advanced click and scroll features from the simple buttons or buttons on the Touch Computer keyboard, phone keypad, MP3 player, home appliance or even TV remote control to the volume adjustment slider, scroll wheel and trackpad, etc., output position (ie The result of the user's input or manipulation action is distinct from the user's input position. The input and output (ie, visual and tactile) are completely consistent, and the consistency of vision and touch is the basic advantage of the Touch Screen.
It's easy to make the vision and touch completely consistent, but it's a far-reaching technological breakthrough that will revolutionize the way users interact with electronic products (some call this the user interface revolution). The transparent nature of the touchscreen panel allows the user to interface with the user to directly "touch" the different content displayed on the display. Users no longer have to look for buttons around the electronic device, such as a computer mouse or keyboard or even a dial button on the phone, but interact directly with the application in the "brain" (ie its operating system) that is solidified in the device. This is a revolutionary change that gives users direct control over powerful operating systems and applications, all at the user's fingertips.
Of course, we can use the mouse and trackpad to access the application on a computer screen, but this control is not a direct touch screen display, and does not allow the user to integrate with the screen and embedded applications. We can actually use the touch screen through a variety of manipulations or gestures we can imagine, making the display vivid and vivid, as long as the eyes see it, simply touch interaction. The touch screen is divided into three categories: a single touch screen; a multi-touch screen; and a full-screen multi-touch screen, that is, all touch screens.
1 single touch screen
The function of the touch screen has been developed from simple to complex. The original product only supports the simplest control, which is a finger touch on the screen to achieve control. For example, we operate at the POS terminal of the accessory supermarket or at the check-in terminal at the airport every day. Previously, we were only able to control through the mechanical buttons around the screen, and the single-touch screen achieved a major advancement in the user interface. Of course, mechanical and new capacitive touch-sensitive buttons are ubiquitous in our homes, offices and anywhere else: mobile phones, landlines, remote controls, televisions, computers and their peripherals, gaming consoles, refrigerators, microwaves, ovens. In-car electronic control equipment such as radios and air conditioners, etc. Now, the single-touch screen shown in Figure 1 below integrates the user control interface directly on the display, so traditional mechanical buttons are no longer needed.
This kind of screen brings two major benefits to the user interface. First, the device design space is optimized, which is especially beneficial for small devices, because it can simultaneously implement screens and buttons in the same area; second, because the buttons can be bound to the operating system. Any application, the "buttons" used by the device can reach an unlimited number. These functions are based on Resistive Touch Screen technology and are widely used in consumer electronics, airport newsstands, grocery POS terminals, and in-vehicle GPS systems.
2 multi-touch screen
Although the single-touch screen and resistive touch screen technology itself are surprising and revolutionary, there are two major drawbacks. One is that resistive technology relies on the physical movement of the touch screen, although it has little effect, but it is usually worn and worn. After that, the performance will drop; the second is that this technology only supports single touch, that is, only one finger can be used to perform a single action on a certain area of the screen at a time. Why is the user interaction of the device limited to one finger? Apple made an invaluable contribution to the user interface revolution, and its iPhone introduced an inductive Capacitive Touch Screen. Even in a miniaturized device such as a smart phone, in order to fully utilize the functions of the application and the operating system, multiple fingers are required to achieve optimum usability. Because of Apple, it is now difficult for the user to imagine how to perform photo zooming, photo orientation, web page view orientation change, etc., as shown in Figure 2 below, without supporting the two-finger gesture finger motion.
Other technology innovators continue to use this multi-touch technology on a variety of device systems, including smartphones from other vendors such as Google G-1 and Blackberry Storm, desktops and laptops such as the MacBook Pro and HP touchsmart, and portable media playback. And many other applications. Now, users have new expectations, and hope to further improve the way users interact with their electronic products, and various electronic products are vying to meet this new requirement of users.
3 full screen multi-touch screen
Like single-touch screens, multi-touch screens have a limitation in that the technology can identify a limited number of operating points simultaneously on the screen. Why can I only identify two operating points at a time? The user's two hands have ten fingers, and when the user interacts with each other, more fingers need to be manipulated. This is the origin of the concept of a full-screen multi-touch screen that can control more than two fingers.
Full-screen multi-touch technology further enhances the reliable usability of touch screens to meet a wide range of feature-rich applications. Reliability means that we can accurately capture the raw data of all the contacts on the screen at the highest granularity, and minimize the confusion caused by the inaccurate positioning of the screen contacts. Usability refers to the ability of many powerful applications to benefit from the manipulation of the screen with both hands or more than two fingers on different screen sizes. 3D interactive games, keyboard input, and map manipulation are some of the main objects that use this touchscreen feature.
Fundamentally, full-screen multi-touch technology provides device and system OEMs with all the touch data available (pun), helping them to be creative and developing the availability of the next generation of new and useful technologies.
