Touch sensor and a method for detecting a user's touch
AssigneeSamsung Display Co., Ltd.
InventorsJeong Heon LEE, Jung Hak KIM, Yun A MA
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Abstract
A touch sensor is provided. The touch sensor including: first touch electrodes; scan lines connected to the first touch electrodes; and a controller that applies a scan signal to each of the scan lines, wherein the scan signal includes a plurality of unit signals in a first time period and a second time period, and includes a gap signal in a gap period between the first time period and the second time period, and an amplitude of each of the plurality of unit signals is greater than an amplitude of the gap signal.
Claims20
A touch sensor comprising:
- first touch electrodes;
- scan lines connected to the first touch electrodes;
- and
- a controller that applies a scan signal to each of the scan lines,
- wherein the scan signal includes a plurality of unit signals in a first time period and a second time period, and includes a gap signal in a gap period between the first time period and the second time period, and
- an amplitude of each of the plurality of unit signals is greater than an amplitude of the gap signal.
A method for detecting a touch using first touch electrodes and second touch electrodes configured to form mutual capacitances with the first touch electrodes, comprising:
- applying a scan signal to each of scan lines connected to the first touch electrodes, wherein the scan signal includes a plurality of unit signals and a plurality of gap signals in a plurality of time periods;
- receiving sensing signals from the second touch electrodes through sensing lines;
- and
- determining, based on a characteristic value of a first target signal among the sensing signals, whether the first target signal corresponds to one of the plurality of unit signals or one of the plurality of gap signals.
Dependencies are inferred from the claim text.