The so-called touch screen, from a market concept, is a computer input device that everyone can use, or a device that everyone can use to communicate with a computer. In a nutshell, a touch screen is an input device that uses a finger or other touch-sensitive media to directly touch the display to operate a computer. It is the most user-friendly computer user interface interface. Easy to learn, everyone can use it, which is the biggest feature of the touch screen, which can't be compared with the keyboard or the mouse. Everyone can use it, which also marks the real arrival of the era of popularization of computer applications.
Touch screen is an inductive display device that can receive input signals such as touch. When the graphic button on the touch screen is touched, the tactile feedback system on the touch screen can realize the operation of the computer according to the pre-programmed program. The touch screen can replace the mechanical button panel, and the dynamic audio and video effects can be displayed on the monitor screen.
The widespread application of touch screens in national production and life directly stimulates the research and development of touch screen technology and the mass production of products. Nowadays, touch screens have penetrated into almost every imaginable application field. The touch screen is the most convenient, simple, and natural means of computer input. People who do not understand computers can also operate computers. The user looks at the displayed content and simply touches what he wants to choose. Through the touch screen, people can operate the control system and query the information of interest.
With the increasing of multimedia information query, people are increasingly applying touch screens. Touch screens can not only meet the needs of our country's multimedia information query, but also have many advantages such as sturdiness, fast response, space saving, and easy communication. Using this technology, users can operate the computer as long as they lightly touch the icons or text on the computer display with their fingers, which makes the human-computer interaction more straightforward. This technology greatly facilitates those who do not understand computer operations. User.
Touch screen is the most suitable input device for information query. Developed countries are actively developing touch screens. Touch screens are also developing from low-end to high-end, from infrared and resistive to capacitive sensing, and now to surface acoustic wave touch screens. And the five-wire resistive touch screen, the performance is more and more superior, the technology is more and more advanced. For example, the surface acoustic wave touch screen is installed with a piece of pure glass without any film coating. Both in terms of clarity and durability, it indicates the arrival of the mature era of touch screen products.
Considering the accuracy, sensitivity and airtightness of the touch screen, capacitive or resistive touch screens should be selected. Both use voltage to add to the four corners of the screen, and the glass screen is directly fixed on the display. The resistance network of the resistive touch screen is sealed in the screen to sense the position of the touch. It can feel the touch of any object. Compared with other types of touch screens, the resistive touch screen has high reliability and is suitable for various industrial environments.
For the convenience of operation, people use touch screens instead of mouse or keyboard. When working, you must first touch the touch screen installed on the front of the display with your finger or other objects, and then the system locates and selects information input according to the icon or menu position touched by the finger.
