Methods and apparatuses for controlling state of terminal screen

A method for controlling a screen of a terminal, wherein the method is used in a wearable device including a second human communication component connected to a second metal structure on a surface of the wearable device, the method comprising:

• receiving, by the second human body communication component via the second metal structure, a first electromagnetic signal sent by a first human body communication component of the terminal, the first electromagnetic signal being transmitted to a first metal structure on a surface of the terminal;
• if the first electromagnetic signal indicates that a real-time state of the screen is a first state, generating a second electromagnetic signal including state switching information regarding the screen;
• and
• sending the second electromagnetic signal to the second metal structure through the second human body communication component, such that the second electromagnetic signal is transmitted to the first metal structure when the first metal structure is touched by a user, wherein a part of the user's body functions as a transmission medium to form an electromagnetic signal transmission path between the wearable device and the terminal.

A terminal, comprising:

• a processor;
• a screen;
• and
• a memory for storing instructions executable by the processor;
• wherein the processor is configured to:
• determine a real-time state of the screen as a first state;
• generate a first electromagnetic signal corresponding to the first state, and send the first electromagnetic signal to a metal structure of the terminal, such that the first electromagnetic signal is transmitted via a skin of a user;
• receive, via the metal structure, a second electromagnetic signal from a wearable device associated with the terminal, the second electromagnetic signal being generated by the wearable device according to the first electromagnetic signal, and the second electromagnetic signal being transmitted to the metal structure when the metal structure is touched by the user, wherein a part of the user's body functions as a transmission medium to form an electromagnetic signal transmission path between the wearable device and the terminal;
• and
• if the second electromagnetic signal includes state switching information regarding the screen, switch the real-time state of the screen from the first state to a second state.

A wearable device, comprising:

• a processor;
• and
• a memory for storing instructions executable by the processor;
• wherein the processor is configured to:
• receive, via a second metal structure on a surface of the wearable device, a first electromagnetic signal generated by a terminal, the first electromagnetic signal being transmitted to a first metal structure on a surface of the terminal;
• if the first electromagnetic signal indicates that a real-time state of a screen on the terminal is a first state, generate a second electromagnetic signal including state switching information regarding the screen;
• and
• send the second electromagnetic signal to the second metal structure on the surface of the wearable device, such that the second electromagnetic signal is transmitted to the first metal structure when the first metal structure is touched by a user, wherein a part of the user's body functions as a transmission medium to form an electromagnetic signal transmission path between the wearable device and the terminal.