An interactive system includes a brainwave detection device and a display device. The brainwave detection device detects the brainwave information of a user, and issues a concentration-related signal according to the brainwave information. The display device has a first display zone. The first display zone displays a plurality of patterns. The display device receives the concentration-related signal, and decides the display duration of at least one of the patterns according to the concentration-related signal.
INTERACTIVE SYSTEM AND DISPLAY DEVICE AND BRAINWAVE DETECTION DEVICE OF THE SAME