——Uiworks bring more details for you
Touchscreen in the previously just a only in science fiction films of emerging technologies, and now it has become ubiquitous on the streets of a kind of application technology, thanks to the development of modern science and technology. The touchscreen is also known as the” Multi touch”,” touch”, is capable of receiving contact input signal induction type liquid crystal display device, when contact is made with the graphics on the screen when the screen button, a tactile feedback system according to pre-programmed program driving various connecting device, can be used to replace mechanical push button panel, and by the liquid crystal display screen creating video and audio effect. Touchscreen as one of the newest computer input device, it is currently the most simple, convenient, a kind of natural man-machine interaction. It gives the multimedia with a new look, is very attractive new interactive multi-media equipment. Now this kind of equipment has in life are very common for many of the computer technology to feel strange people facilitated a popular.
The first touch panel characteristics: transparent, it directly affects the visual effect of the touchscreen. Transparent degree, infrared technology touchscreen and surface acoustic wave touchscreen only separated by a layer of glass, transparent can be considered a leader, the other touchscreen that will take out a,” transparent”, in the touchscreen industry, is a very broad concept, a multi-touchscreen is multilayer composite film, only clear point to summarize its visual effect is not enough, it should include at least four characteristics: transparency, color distortion, reflective and clarity, but also divided, such as reflective level including mirror and diffraction reflection degree, only the surface of the touchscreen diffraction reflection before reaching the CD disk the degree, to the user, the four metric is basic enough. The transmittance and wavelength of the existence of Qu Xiantu, through the touchscreen to see the image and the original image inevitably produced color distortion, static image feeling just color distortion, dynamic multimedia image feel is not very comfortable, and color distortion is the map of the largest color distortion is as small as possible. Usually said transparency can only is a graph in which the average transparency, of course, is the better.
Reflection mainly refers to the image due to secular reflection caused by overlapping the light and shadow behind, such as figure, windows, and lighting. Reflection is a touchscreen brought negative effect, multi touch wall is the smaller the better, it affects the user ‘s browsing speed, even cannot recognize the image character, reflecting strong touchscreen using environment is restricted, scene lighting layout was also forced to need to adjust. Most of the existing reflective problems on the touchscreen are provided with another surface treated models: frosted surface touchscreen, also called the antiglare type, price slightly high somewhat, anti reflective of decreased obviously, applied to the lighting is very ample lobby or exhibition places, however, the antiglare type transparency and clarity is also it has relatively substantially drop.
Definition, some touchscreen installed, illegible, image details, the entire screen obscured, it’s not clear, this is the definition is too poor. Definition is the main problem of multilayer film structure of the touchscreen, as the thin film layers of light reflection and refraction caused by repeated, in addition the antiglare touchscreen due to surface scrub also creates clarity drop. Clarity is not good, eye fatigue; eye also has certain injuries, optional touchscreen to the attention of discriminate. Touchscreen is second characteristics: the absolute coordinate system, choose which will direct the mouse, and this kind of relative positioning system is the essential difference between places of intuitive.
Absolute coordinate system is characteristic of every location coordinates and a positioning coordinate it doesn’t matter, touchscreen in physics is a set of independent coordinate system, every time you touch the data through the calibration data to the screen coordinates, thus, requires that this set of coordinates do not touchscreen pipe in what circumstances, the output data is stable, if not stable, so the touchscreen can guarantee absolute positioning, point to, this is a touchscreen are most afraid of problems: drift. Technical principle on who cannot guarantee that the same point touch every time the same sampled data of the touchscreen will inevitably drift in this problem, there are currently only drift phenomenon of capacitive touchscreen. Touchscreen third characteristics: detection and localization of touch, a variety of touchscreen technology is to rely on their own sensors to work, even some touchscreen itself is a set of sensor.
The positioning principle and the sensors determine the touchscreen response speed, reliability, stability and service life. Touchscreen compared with prior technology has many advantages but only by understanding the characteristics of the multi touch screen to good use of it, to touchscreen technology to help you better operating computer.