17978705. TOUCH CONTROLLER, OPERATING METHOD OF THE SAME, AND TOUCH SENSING DEVICE INCLUDING TOUCH CONTROLLER simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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TOUCH CONTROLLER, OPERATING METHOD OF THE SAME, AND TOUCH SENSING DEVICE INCLUDING TOUCH CONTROLLER

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Heejin Lee of Suwon-si (KR)

Jinbong Kim of Suwon-si (KR)

Sanho Byun of Suwon-si (KR)

Jinchul Lee of Suwon-si (KR)

Yunrae Jo of Suwon-si (KR)

TOUCH CONTROLLER, OPERATING METHOD OF THE SAME, AND TOUCH SENSING DEVICE INCLUDING TOUCH CONTROLLER - A simplified explanation of the abstract

This abstract first appeared for US patent application 17978705 titled 'TOUCH CONTROLLER, OPERATING METHOD OF THE SAME, AND TOUCH SENSING DEVICE INCLUDING TOUCH CONTROLLER

Simplified Explanation

The abstract describes a touch controller that includes a noise detection circuit, a driving signal generation circuit, and a receiving circuit.

  • The touch controller has a noise detection circuit that detects display noise on sensing electrodes.
  • The noise detection circuit provides different reference voltages to different electrodes.
  • A driving signal generation circuit generates driving signals based on the reference voltages and selects them alternately.
  • A receiving circuit receives the driving signals and generates a sensing voltage based on touch sensing signals.

Potential Applications

This technology can be applied in various touch-sensitive devices, such as smartphones, tablets, touchscreens, and touch panels used in automotive displays, medical devices, and industrial equipment.

Problems Solved

1. Display noise detection: The touch controller addresses the issue of display noise interfering with touch sensing by providing separate reference voltages to different electrodes. 2. Touch sensing accuracy: By generating driving signals based on the reference voltages and selecting them alternately, the touch controller improves the accuracy of touch sensing signals.

Benefits

1. Improved touch sensitivity: The touch controller's noise detection circuit and driving signal generation circuit enhance the sensitivity and accuracy of touch sensing. 2. Reduced interference: By detecting and mitigating display noise, the touch controller minimizes interference and improves the overall performance of touch-sensitive devices.


Original Abstract Submitted

A touch controller includes a noise detection circuit that respectively provides a first reference voltage and a second reference voltage for detecting display noise to a first electrode and a second electrode arranged on lines except a line on which touch sensing is performed, among sensing electrodes, the second reference voltage being different from the first reference voltage, a driving signal generation circuit that receive a first noise voltage and a second noise voltage generated based on the first reference voltage and the second reference voltage and alternately selects the first noise voltage and the second noise voltage as a driving signal, and a receiving circuit that receives the driving signal, a touch sensing signal generated based on the driving signal from a third electrode arranged on the line on which touch sensing is performed, among the sensing electrodes, and generates a sensing voltage based on the touch sensing signal.