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US 2018/0121020 A1Published application
Touch panel controller
AssigneeSamsung Electronics Co., Ltd.
InventorsJIN CHUL LEE, CHOONG HOON LEE, CHA DONG KIM, JUN CHUL PARK, DONG WOOK LIM, YOON KYUNG CHOI
Life of this patent
Estimating the term…
Abstract
A touch panel controller includes a signal driver charging a plurality of sensor lines extending in a direction with the same charge, by applying a driving signal to one sensor line of sensor lines and applying a mirrored driving signal mirrored from the driving signal to the remaining sensor lines of the sensor lines, and a sensor sensing a change in capacitance from the sensor lines, respectively.
Claims20
A touch panel controller comprising:
- a signal driver charging a plurality of sensor lines extending in a direction with the same charge, by applying a driving signal to one sensor line of sensor lines and applying a mirrored driving signal mirrored from the driving signal to the remaining sensor lines of the sensor lines;
- and
- a sensor sensing a change in capacitance from the sensor lines, respectively.
A touch panel controller comprising:
- a signal driver that applies a driving signal to a plurality of sensor lines extending in a direction;
- and
- a sensor that senses a change in capacitance by calculating a difference in voltage levels between a voltage of each of the sensor lines and a voltage of the driving signal.
A touch panel controller comprising:
- a signal driver that charges a plurality of sensor lines with the same charge by applying a first driving signal to the sensor lines of a touch panel;
- and
- a sensor that, for each of the sensor lines, senses a difference between a voltage sensed on the sensor line and a voltage of the first driving signal.
Dependencies are inferred from the claim text.