Abstract: A flat-panel display including a body, a base detachably connected with the body, and a metal plate detachably connected with the base is provided in the present invention. When the body is at a first use-state, the metal plate is affixed to the base and supports the body. When the body is at a second use-state, the metal plate is separated from the base and connected with the body to make the body capable of being hung on a wall. Besides, the metal plate also can reduce the electromagnetic interference effectively.

Abstract: A supporting structure and a display device using the same are provided. The supporting structure enables the display device to have low electromagnetic interference (EMI). The display device has a display screen and the supporting structure. The supporting structure comprises a base, a low impedance stand and a high impedance stand. The low impedance stand is mechanically and electrically connected to the base. The high impedance stand is mechanically connected to the base, but electrically isolated from the base.

Abstract: A digital device capable of utilizing a button to switch rapidly between file elements includes a memory for storing file elements, a selector module for selecting predetermined switch file elements from the file elements stored in the memory, the button for producing a switching signal, and a controller coupled to the button for switching from a state of having a first file element of the predetermined switch file elements open to a state of having a second file element of the predetermined switch file elements open corresponding to the switching signal received from the button.