The present embodiments relates to a touch display device, a touch system, a touch master, a touch slave, and a communication method. More particularly, the present invention relates to a touch display device capable of providing a communication protocol and a communication interface based on a master-slave system where a touch driving device can operate as a touch slave and a touch master can operates as a touch controller, a touch system, and a touch module, and a communication method. According to the embodiments, communication between a touch driving device and a touch controller can be performed accurately and quickly, touch-related processing time can be shortened, and data transmission efficiency can be increased.;COPYRIGHT KIPO 2018
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