Function and application of touch screen computer

 Are deemed Technology Co., Ltd. is committed to video, teaching, touch devices product development, production, sales and service, specializing in the production of teaching one machine, LCD whiteboard, one PC, touch TV-One PC, touch one, touch LCD advertising machine. The so-called touch-screen computers, from the market Conceptually, the computer input device is a kind of everyone to use, or that is to communicate with the computer equipment used by everyone. Not learn, everyone will use, it is the largest magic touch screen computer, whether it is a keyboard or a mouse, they can not be compared with. ?? Touch screen computer from a technical principles point of view, a transparent touch screen computer is an absolute addressing system, it must first ensure transparent, so it must address the issue of transparency through the material science and technology, such as a digitizer, tablet, lift switch They are not a touch screen; Second, it is an absolute coordinate, finger touch which is what, no second action, unlike the mouse, is the relative positioning of the system, we can note that a touch screen computer software does not need a cursor, There cursor actually affect the user's attention, because the cursor to the relative positioning of the device is used, the relative positioning of the device you want to move to a place where we must first know now, which direction to go, all the time need not Stop the current position feedback to the user and avoid deviation. These take absolute positioning coordinates of a touch screen computer is not required; then followed that can detect a finger touch action and determined that the finger position, various types of touch-screen computer technology is to focus on "test finger touch" and the Eight Immortals recount. Features touch screen computer: 1, touch-screen computer transparency: it directly affects the visual touch screen computers. Transparent, touch-screen industry, only a general concept, a lot of the touch screen is a multilayer composite film, just to summarize it clear that the visual effect is not enough, it should include at least four characteristics: transparency, color distortion degree, reflective and clarity, but also be divided, for example, the degree of reflection including specular reflection and diffraction degree reflective level, but our touch screen reflective surface diffraction has not reached the level of a CD, the user is concerned, this The four properties have basically had enough. 2, the absolute coordinate system touch screen computer: touch screen computer is an absolute coordinate system, which directly point to choose which, with the essential difference between the mouse relative positioning of such a system is in place intuitive. Touch screen computer system is characterized by the absolute coordinate every location coordinates with the last position fix does not matter, a touch screen computer is physically a separate set of coordinate positioning system, each touch calibration data into coordinates on the screen, so, The coordinates of the touch screen requires no matter what the circumstances, the same point of the output data is stable, if unstable, then this touch screen can not guarantee absolute coordinate positioning, points allowed, which is afraid of the touch screen The problem: drift. Those who can not guarantee the technical principle the same point every time sampling data of the same touch touch screen will inevitably drift problem. But for performance and good quality touch screen, the situation appears drift is not very serious. 3, touch-screen computer to detect touch and orientation: a variety of touch-screen technology are relying on their sensors to work, and even some touch screen itself is a set of sensors. Principles and their respective positioning sensors used determines the touch screen response speed, reliability, stability and longevity. Touch screen sensor method also determines how to identify the touch screen multi-touch problem, which is more than a little touch at the same time how to do? When someone touch touch someone how to do next? This is the process of using the touch screen recurrent problem, the current solution is constantly perfected. 4, easy to operate touch screen computer: just a finger touch relevant button on clear touch-screen computer screen, you can enter the world of information, the information may include text, animation, music, video, games. 5, touch-screen computer interface friendly: users do not need special knowledge of computers, you can clear all the information on the next touch-screen computers, tips, instructions, and its interface is suitable for all levels, all ages of people. 6, touch screen computer information-rich: a virtually unlimited amount of information storage, any complex data, can be incorporated into multimedia systems, and information-rich species, can reach audiovisual are prepared, varied and exciting display of results. 7, touch-screen computer quick response: The system uses cutting-edge technology, high-capacity data query, the response rate is a means that is coming, do not bother to wait, to really "; Pentium"; speed. 8, touch-screen computer safe and reliable: long time continuous operation, without any impact on the system, the system is stable and reliable, normal operation will not go wrong, crashes; easy maintenance, the system comprises an identical interface and presentation systems management and maintenance systems, can be easily the content of the data to add, delete, change and other management operations. 9, touch screen computer expandability good: good scalability, you can always increase the system content and data, and to facilitate future networking, multi-database operations. 10, touch-screen computer dynamic network: the system according to user needs, the establishment of various network connections, such as the telecommunications business network, telecommunications billing network connection, dynamic Enquiries accept process and personal telephone bills, also with internal INTEANET, INTERNET Internet connection. The main types of touch-screen computer: Following media works touch screen computer and transmission of information, we have touch screen is divided into four types, they were resistive, capacitive sensing, infrared and surface acoustic wave type. Each category has its own touch screen advantages and disadvantages, need to understand that the touch screen is suitable for that occasion, the key is to know how each type of touch screen technology works and features. Next, the above-described various types of touch screen computer screen a brief introduction: 1, resistive touch screen computer resistive touch screen computer includes a four-wire resistive screen touch screen computers, five-wire resistive screen touch screen computer and resistive screen of the limitations of the touch-screen computer 2, capacitive touch screen computer 3, infrared touch screen computer surface acoustic wave touch screen computer features: high-definition, good light transmittance. Highly durable, good scratch resistance (relative to the resistors, capacitors and other surface coatings). Responsive. Environmental factors independent of temperature, humidity and other factors, high resolution, long life (maintenance under good circumstances 50 million); high transmittance (92%), to maintain a clear and bright image quality; not drift, just installed a correction; a third axis (ie pressure-axis) response, currently used more in public places. Surface acoustic screen requires frequent maintenance because the dust, oil or liquid beverage contamination in surface of the panel, will block the touch screen surface waveguide groove, so waves can not transmit properly, or the waveform changes the controller can not properly identify, thus affecting the normal use of the touch screen, the user should pay strict attention to sanitation. We must often wipe the screen surface to keep clean the screen surface, and regularly conduct a thorough erased.