1. Bright. It directly affects the visual effect of the touch screen. Transparent,In the contact screen profession,It's just a general concept,Many contact screens are multi-layer composite films,It's not okay to summarize its visual effect only with a little brightness,It should include at least four characteristics:Brightness、Color distortion、Reflectivity and clarity,It can also be divided again,For example, the degree of reflection includes the degree of mirror reflection and the degree of diffraction reflection,It's just that the diffraction reflection on the surface of our contact screen has not yet reached the level of CD disk,For users,These four characteristics are now simply enough。
2. Affirm the coordinate system. The contact screen is a positive coordinate system, where to choose where to click directly, and the essential difference with the relative positioning system such as the mouse is the intuitiveness in place at one time. The characteristics of the affirmative coordinate system are that each positioning coordinate has no relationship with the previous positioning coordinates, the contact screen is physically an independent coordinate positioning system, and the data of each contact is calibrated to the coordinates on the screen, so that the contact screen is required to have this set of coordinates no matter what the situation, the output data of the same point is stable, if it is unstable, then the contact screen can not guarantee the affirmative coordinate positioning, and the point is forbidden, which is the most feared problem of the contact screen: drift. In terms of skill principle, if the same point contact cannot be guaranteed, the contact screen with the same sampling data will inevitably drift.
3. Detect contact and locate. All kinds of contact screen skills rely on their own sensors to operate, and some of them are even a set of sensors themselves. The respective positioning principle and the respective sensors used determine the response speed, reliability, stability and longevity of the contact screen.
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