Ladas & Parry LLP
Method for driving in-cell touch panel, drive device and display device
A method for driving an in-cell touch panel, a drive device and a display device are disclosed. The driving method includes: in a touch period, applying touch detection signals to self-capacitance electrodes, receiving feedback touch sensing signals, and determine a possible touch area provided with at least one self-capacitance electrode according to the variation of the touch sensing signals compared with the touch detection signals; subsequently, taking at least a portion of self-capacitance electrodes in the touch area as a first touch electrode, taking a self-capacitance electrode adjacent to the first touch electrode as a second touch electrode, and determining an accurate touch position according to the principle of the different amount of projection fields between the first touch electrodes and the second touch electrodes. The driving method can improve the touch detection accuracy.
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. BOE TECHNOLOGY GROUP CO., LTD.
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Yingming Tao Hongjuan Xue Weijie Xiaoliang Shengji Haisheng
Liu Ren Liu Dong Zhao Ding Yang Wang