Touch screen applications

- Jul 16, 2018-

The application range of the touch screen, touch screen is also known as "touch screen", "touch panel, touch is a kind of can receive the first input signal of induction type liquid crystal display device, when contact with the graphic buttons on the screen, the screen of the tactile feedback system according to the program of pre-programmed drive all kinds of connecting device, from the perspective of technical principle, touch screen is a transparent absolute coordinates positioning system, first of all, it must ensure that are transparent, so it must be by material technology to solve the problem of transparent, like a digitizer, wordpad, elevator switches, they are not touch screen;Secondly it is absolute coordinates, finger touch which is which, don't need the second action, unlike the mouse, is a set of relative positioning system, we can notice that the touch screen software don't need a cursor, a cursor instead affects the user's attention, because the cursor is for relative positioning device, relative positioning device to move to a place where the first thing to know, which direction to go, all the time also need to constantly feedback to the user's current location is not appeared deviation.None of this is needed for a touch screen that USES absolute coordinate positioning.The second is the ability to detect finger touch and determine finger position. Various touch screen technologies are developed around "detecting finger touch".