Method for implementing virtual keyboard by utilizing condenser type touch screen
A technology of capacitive touch screen and virtual keyboard, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., to achieve the effect of avoiding false touch actions
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[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0027] combine Image 6 , Figure 7 , take the capacitive multi-touch screen with indium tin oxide semiconductor transparent conductive film as an example to illustrate, the indium tin oxide panel 10 and the liquid crystal module 11 of the touch screen 1 are respectively connected to the coordinate information processing unit 13 and the liquid crystal driving module 12, The liquid crystal driving module 12 and the coordinate information processing unit 13 are connected to the host computer 2 through a communication interface and a connecting line.
[0028] The coordinate information processing unit 13 includes a touch chip 130 and a microprocessor 131 , the scan lines of the indium tin oxide panel 10 are connected to the scan line pins of the touch chip 130 , and the signal output end of the touch chip 130 is connected to the microprocessor MCU131 The s...
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