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1. (WO2018058340) TOUCH CHIP AND METHOD FOR TOUCH CHIP IN DETECTING TOUCHED POINT ON TOUCHSCREEN

Pub. No.:    WO/2018/058340    International Application No.:    PCT/CN2016/100459
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Thu Sep 29 01:59:59 CEST 2016
IPC: G06F 3/044
Applicants: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
深圳市汇顶科技股份有限公司
Inventors: CHEN, Xiaoxiang
陈小祥
Title: TOUCH CHIP AND METHOD FOR TOUCH CHIP IN DETECTING TOUCHED POINT ON TOUCHSCREEN
Abstract:
A touch chip and a method for detecting a touched point on a touchscreen. The method comprises: a touch chip outputs a drive signal to S drive channels of a touchscreen in a current scan cycle (S210), the touchscreen having M drive channels, M being a positive integer, and S being a positive integer less than M; when the touch chip outputs the drive signal to each drive channel of the S drive channels, the touch chip receives a sensing signal outputted by N sensing channels of the touchscreen (S220), N being a positive integer; and the touch chip detects a touched point on the touchscreen on the basis of the sensing signal outputted by the N sensing channels and received by the touch chip when the touch chip outputs the drive signal to the S drive channels (S230). The touch chip and the method for detecting the touched point on the touchscreen effectively reduce the time for detecting the touched point on the touchscreen, thus increasing the report rate of the touchscreen and reducing the power consumption of the touch chip.