What are the features of the touch screen
The first feature of the touch screen:
It is transparent, which directly affects the visual effect of the touch screen. Transparent degree transparent, infrared touch screen technology and surface acoustic wave touch screen only a layer of pure glass, transparent is the leader, the other touch screen to make this a deliberate, "transparent", the touch screen industry, is a very broad concept, a multi touch screen is composite film a multilayer, with only a little transparent to summarize its visual effect is not enough, it should include at least four characteristics: transparency, color distortion, reflection and clarity, but also subdivided, such as reflective mirror including degree degree and degree of reflective diffraction, but the touch screen has not reached the CD disk reflective diffraction the extent of the user, the four measure has been basically enough.
The transmittance and wavelength curve, distortion through the touch screen to see the inevitable image and original image produced color, static image feeling is only color distortion, dynamic multimedia image feeling is not very comfortable, the maximum color color distortion which is the distortion of the nature is as small as possible. The usual transparency is also the average transparency in the picture, and the higher, of course, the better.
Reflection, mainly refers to the reflection of the mirror image on the image overlaps the shadow of light, such as human shadow, window, light and so on. Reflection is the negative effect of touch screen. The smaller the better, it affects the user's browsing speed, and even can't recognize the image character even when it is serious. The environment of the strong reflective touch screen is limited, and the layout of the scene is also forced to adjust. Most existing touch screen reflective problem would provide another after surface treatment type: frosted surface touch screen, also called glareproof, slightly higher prices, anti glare reflective decreased for hall or exhibition places in the lighting is very adequate but antidazzling type transparency and clarity it has decreased greatly. Clarity, some touch screens are installed, blurred, blurred and blurred, and the whole screen is blurred, which is not clear enough, which is poor definition. The problem of clarity is mainly the multilayer film touch screen, due to the light repetition and refraction caused by the film layer. In addition, the anti glare touch screen also causes sharpness of the surface because of surface abrasion. The definition is not good, the eye is easy to fatigue, the eye also has certain harm, when choosing the touch screen, we should pay attention to the discrimination.
The second features of the touch screen:
The touch screen is the absolute coordinate system, which is to be selected directly. The essential difference between the relative positioning system and the mouse is the intuition in place. The characteristics of the absolute coordinate system is every location coordinates of a Never mind and location coordinates, the touch screen is a set of independent coordinate system in physics, each touch data through the calibration data into coordinates on the screen so that the touch screen requires this set of coordinates not in what circumstances the output data of the same point is stable, if not stable, so that the touch screen can ensure absolute positioning, from the touch screen that is most afraid of the problem: drift. In terms of technology principle, there is no way to ensure that the same touchscreen touches the same touchscreen with every sampling data. There is a drift problem. The phenomenon of drift is only capacitive touch screen.
The third features of the touch screen:
Detect touch and locate, all kinds of touch screen technology rely on their own sensors, and even some touch screen itself is a set of sensors. Their respective positioning principles and their respective sensors determine the reaction speed, reliability, stability and life of the touch screen.
Hangzhou Kaike Electronics Co., Ltd.
Address: No. 2. Dadi Road, Haining Agricultural External Development Zone 314408,
Contact Person: May Wong
Telephone: 86-571-86830690 Fax: 86-571-86687367
Cell Phone: 86-15158112598
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