The invention discloses a
sleep induction method, a
sleep induction system and a
display device. The
sleep induction method includes recognizing mental states of a
human body, wherein the mental states include excitatory state, fatigue state,
sleep state or sleeping state; adjusting frequency of initial audio signals to generate
hypnosis audio signals according to the mental states, wherein the
hypnosis audio signals include two audio signals different in frequency; generating
hypnosis sound
waves according to the hypnosis audio signals, wherein the hypnosis sound
waves include two hypnosis sub sound
waves which are generated at the same time and enter the left ear and the right ear of the
human body respectively. By the technical scheme, hypnosis of the
human body can be realized while the human body enjoys audio-video entertainment, and sleep induction of the human body is realized. More importantly, the most suitable hypnosis method is selected on the basis of the mental states of the human body, so that hypnosis effect is quite obvious, and the human body can be enabled to fall asleep in short time.