Projected capacitive touch panel
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United States of America Patent
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Jun 14, 2016
Grant Date -
Feb 16, 2012
app pub date -
Oct 1, 2010
filing date -
Aug 13, 2010
priority date (Note) -
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Abstract
A projected capacitive touch panel has a substrate, an X-axis electrode layer formed on a top of the substrate and a Y-axis electrode layer formed on a bottom of the substrate. The X-axis and the Y-axis electrode layers respectively have a plurality of X-axis electrodes and Y-axis electrodes arranged in a matrix form and respectively connected with a plurality of X-axis and Y-axis signal transmission lines. Each of the X-axis signal transmission lines and the Y-axis signal transmission lines is connected with a conversion module. The conversion modules is mounted to be adjacent to the X-axis and Y-axis signal transmission lines, converts analog signals into relatively stable digital signals, and transmits the digital signals to an external controller to determine coordinates being touch. Accordingly, lengths of the X-axis and Y-axis signal transmission lines can be shortened and the size of a control area of the touch panel can be enlarged.
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