Abstract: A control system includes a wireless dock, a mobile device, and one or more accessories. The one or more accessories are used with the mobile device. When the mobile device is close to the wireless dock, the mobile device receives a message from the wireless dock, and the mobile device obtains environmental information according to the message so as to control operating states of the accessories.

Abstract: An image display system is provided. Shutter glasses have a first active polarizer, determining whether the first active polarizer has a first polarization direction or not according to a display mode. A display apparatus has a second active polarizer determining whether the second active polarizer has a second polarization direction or not according to the display mode, and a bottom polarizer with a third polarization direction. When the display mode is a normal mode, the first active polarizer has no polarization, and the second active polarizer has the second active polarizer being perpendicular to the third polarization direction. When the display mode is a safe mode, the second active polarizer has no polarization, and the first active polarizer has the first active polarizer being perpendicular to the third polarization direction.