Banner & Witcoff, Ltd.
In-cell touch display panel, driving method thereof, and display device
The present application provides an in-cell touch display panel, a driving method thereof, and a display device. At least two sub-pixels are a sub-pixel group, cathode layers of different sub-pixel groups are independent of each other, which is equivalent to that the cathode layer set as a whole surface in the prior art is segmented, one sub-pixel group corresponds to one segmented cathode layer, cathode layers of respective sub-pixel groups are connected through conductive lines to the driver chip, so that the cathode layer is reused as a self-capacitive touch control electrode, the driver chip detects a capacitance variation of the cathode layer through the conductive line corresponding thereto to determine a touch location, thus achieving the touch control function. In the in-cell touch display panel, signals outputted by the driver chip to respective signal terminals of a sub-pixel circuit and the cathode layer in a fourth stage are obtained by superimposing the same touch scanning signal on basis of signals outputted to the respective signal terminals and the cathode layer in a third stage, so that the operating state of each module in the sub-pixel circuit is the same as that in the third stage, which ensures normal display, therefore an in-cell touch display panel based on OLED panel is achieved.
BOE Technology Group Co., Ltd. Beijing BOE Optoelectronics Technology Co., Ltd.
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inventional inventional inventional inventional inventional inventional inventional inventional additional inventional inventional inventional
Haisheng Jianyun Hailin Xue Shengji Hongjuan Yingming Jiantao Xi Xiaochuan Weijie
Wang Xie Xue Dong Yang Liu Liu Liu Chen Chen Zhao