Patent ID: 9465460
Filing Date: 2016-10-11
CPC Classification: G06F,H03G,Y02D

Claim Text:
1. An electronic device, comprising: a display, configured to display an image; a touch sensor, integrated with the display and configured to detect a contact on the touch sensor and generate a sensing signal when no image is displayed on the display; a driving circuitry, coupled to the display and the touch sensor, and configured to partially drive the touch sensor at a first frequency when the display is not driven to display the image and fully drive the touch sensor at a second frequency when the display is driven to display the image, wherein the touch sensor includes a plurality of sensing elements, and a part of the sensing elements of the touch sensor is driven at the first frequency and the other part of the sensing elements of the touch sensor is not driven when no image is displayed on the display; a sensing circuitry, coupled to the touch sensor to receive the sensing signal generated by the part of the sensing elements of the partially driven touch sensor when no image is displayed on the display and determining a first information based on the received sensing signal generated by the part of the sensing elements of the partially driven touch sensor; and a processing unit, coupled to the driving circuitry and the sensing circuitry and comparing the first information with a first predetermined information; wherein when the first information matches the first predetermined information, the driving circuitry drives the display to display the image and drives the part of the sensing elements of the touch sensor and the other part of the sensing elements of the touch sensor at the second frequency, wherein the first frequency is lower than the second frequency.