Touch screen virtual key display system and method
A display system and touch screen technology, applied in the direction of instruments, electrical digital data processing, input/output process of data processing, etc., can solve the problem of occupying touch screen space and so on
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[0017] See figure 1 In a preferred embodiment of the present invention, a touch screen virtual key display system includes a touch recognition unit 10, a timing unit 20, and a virtual key display unit 30, the touch recognition unit 10 and the virtual key The display unit 30 is connected to the timing unit 20 respectively.
[0018] See figure 2 , Which is a preferred embodiment of the touch recognition unit 10, the touch recognition unit 10 includes a set of first electrode lines 11 extending in a horizontal direction and a set of second electrode lines 12 extending in a vertical direction, The first electrode line 11 and the second electrode line 12 are arranged perpendicular to each other on the touch screen. The intersection of the two sets of electrode lines 11 and 12 forms a capacitance. When a finger or a stylus touches the touch screen, the touch point is affected The size of the nearby capacitance, based on the change in capacitance, determines that a finger or stylus tou...
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