Transmission device and virtual image system capable of changing conveying direction for objects

The present invention provides a transmission device, which comprises transmission members that are individually and independently driven and intersected on the same plane and may allow two strips of transmission members (to communicate with each other, and) to together have multiple partitioning blocks within the overlapped regions. Thus, the partitioning blocks located in the overlapped region may be moved along with the movement of any one strip of transmission member and may enable the object on/in the overlapped region to move in multiple directions. Furthermore, the present invention also provides a virtual image system comprising the transmission device.