CAPACITIVE TOUCH SCREEN
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United States of America Patent
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Issued Date -
Dec 11, 2014
app pub date -
Nov 20, 2013
filing date -
Jun 6, 2013
priority date (Note) -
Abandoned
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Abstract
A capacitive touch screen, includes: a substrate; a plurality of sensing electrodes provided on the substrate, the plurality of sensing electrodes being arranged in a two-dimensional array; and a touch control chip bound to the substrate, the touch control chip being connected with each of the plurality of sensing electrodes via a corresponding wire. The touch control chip includes a driving source, a detection circuit and a timing control circuit, and each of the sensing electrodes is connected with the driving source and the detection circuit. The timing control circuit starts or cuts off the driving source according to a preset control scheme, and the detection circuit detects the change of the capacitance of each of the sensing electrodes to detect a touch position of a touch body on the touch screen.
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