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        CN
        4News

        The application range of the touch screen


        Touch screen display range, also known as "touch screen", "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts, when it touches the graphic button on the screen, The on-screen tactile feedback system can drive various connection devices according to a pre-programmed program. From a technical point of view, the touch screen is a transparent absolute coordinate positioning system. First, it must be transparent, so it must pass material technology. To solve the transparency problem, like digitizer, tablet, elevator switch, they are not touch screen; secondly it is absolute coordinates, where is the finger touch, no second action, unlike the mouse, is a relatively positioned system We can notice that the touch screen software does not need a cursor, and the cursor adversely affects the user's attention, because the cursor is used for the relatively positioned device, and the relatively positioned device has to move to a place to first know where it is. In which direction to go, it is necessary to constantly give feedback to the user at the current position so that there is no deviation. These are not needed for the touch screen with absolute coordinate positioning; secondly, it can detect the touch action of the finger and judge the position of the finger. All kinds of touch screen technologies are around the "detect finger touch" and the eight immortals cross the sea.
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