TOUCH DISPLAY SYSTEM AND METHOD FOR OPERATING THE SAME
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United States of America Patent
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Issued Date -
Dec 8, 2011
app pub date -
Mar 29, 2011
filing date -
Jun 4, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A touch system allows a user to issue touch commands using a cursor pen. The cursor pen is configured to output a characteristic signal which generates a disturbance signal at a contact location where a touch commanded occurs. During a frame period, data driving signals are outputted to the data lines, from which data sensing signals are simultaneously measured for detecting the disturbance signal. If a disturbance signal is detected in a specific data sensing signal, the horizontal coordinate of the contact location may be determined according to a specific data line from which the specific data sensing signal is measured, and the vertical coordinate of the contact location may be determined according to when the disturbance signal occurs in the specific data line.
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