Abstract: A touch system includes a glass cover, a polarizer, packaging glass, a thin film transistor (TFT) backplane, a transmitter (TX) circuit, and a receiver (RX) circuit, where the glass cover, the polarizer, the packaging glass, and the TFT backplane are fitted in sequence from top to bottom, and the TX circuit is located on the TFT backplane, and the RX circuit is located on the packaging glass. The TX circuit and the RX circuit are respectively disposed on the TFT backplane and the packaging glass. Therefore, a quantity of stacked layers of the touch control system is reduced. This reduces a thickness of the touch system, thereby achieving a thinner and lighter active matrix organic light emitting diode (AMOLED) display screen, and reducing a weight of a terminal product.

Abstract: A method, a device, and a system for initiating Packet Data Network (PDN) disconnection are provided, so as to achieve disconnection of one or more specific PDNs. The method includes that: a Foreign Agent (FA) or a Mobile Access Gateway (MAG) receives PDN disconnection information from an authenticator; and initiates Mobile Internet Protocol (MIP) deregistration to a PDN Gateway (PDN GW) corresponding to the PDN disconnection information. The device includes a receiving module and a transmitting module. The system includes an FA or an MAG, and an authenticator connected to the FA or the MAG in a communicable manner.