Patent ID: 7545447

Claim:
A display apparatus, comprising: a tuner operable to receive a video signal; an external input unit into which a video signal is input from the outside; a display processor operable to select one of the video signal received by the tuner and the video signal obtained from the external input unit as a main video on which to perform display processing; a display unit operable to display video signals processed by the display processor; an operation unit; and a controller operable to cause the display processor to combine an operation guidance video with the main video to form a combined display based on a predetermined operation in the operation unit and to display the combined display, wherein the combined display is displayed in a first display mode when the main video is the video signal received by the tuner, and the combined display is displayed in a second display mode when the main video is the video signal obtained from the external input unit; wherein the combined display includes an indication of a remaining battery life for the display unit and an indication of a state of communication between the display unit and the tuner.