TOUCH DISPLAY DEVICE TOUCH CIRCUIT ACTIVE PEN TOUCH SYSTEM AND MULTI-PEN SENSING METHOD

摘要

Embodiments of the present invention relate to a touch display device, a touch circuit, a pen, a touch system, and a multi-pen sensing method and, more specifically, to a touch display device, a touch circuit, a pen, a touch system, and a multi-pen sensing method capable of receiving downlink signals outputted from each of the two or more pens through one or more touch electrodes in a panel and distinguish two or more pens from each other and sensing the two or more pens based on unique information of received downlink signals.