Touch sensing system and driving method thereof
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United States of America
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Jan 7, 2025
Grant Date -
Aug 1, 2024
app pub date -
Oct 27, 2023
filing date -
Oct 27, 2023
priority date (Note) -
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Abstract
A touch sensing system may include, for example, pixels for displaying an input image, data lines, touch electrodes, a timing controller for dividing one frame into a display driving period for displaying the input image and a touch driving period for driving the touch electrodes, a stylus pen for receiving a pen uplink signal during the touch driving period and outputting a pen downlink signal, and a touch sensing circuit for causing the pen uplink signal to be radiated to the stylus pen from the data lines during the touch driving period and for sensing voltages of the touch electrodes based on the pen downlink signal. In another example, a touch sensing system may supply the pen uplink signal, which is to be radiated to the stylus pen, using touch electrodes and reference voltage lines during the touch driving period. Methods of driving a touch sensing system are also disclosed.
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