Extension device of handheld computing device

摘要

A display system for a handheld computing device is disclosed. The display system includes a processing unit having a first communication port, and a visual display unit separable from the processing unit. The visual display unit further includes a visual display, and a second communication port. The display unit can be expanded from an initial or storage state to present a larger visual display size. Further, the first communication port providing communication with the second communication port.