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 15, 2013
filing date -
Jun 6, 2013
priority date (Note) -
Abandoned
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Abstract
The embodiments of the invention disclose a capacitive touch screen, including: 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 being configured to detect a change of self-capacitance of each of the plurality of sensing electrodes by using a detection circuit with an adjustable precision, so as to determine touch information. The capacitive touch screen disclosed in the embodiments of the invention can achieve a true multi-touch and detect the touch positions of different touch objects accurately.
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