Hand-held display device with display element on a rotatable body

摘要

A display device comprising a first body and a second body, the second body connected to the first body at a rotary connection. A display element, which may include one or more light-emitting diodes, is disposed on the second body. A controller is electrically connected to the first display element so as to vary the state of the display element in response to relative movement between the first body and second body.