Patent ID: 7542098

Claim:
A display device comprising: a display panel having an array of display elements; a signal processor that responds to control information and to a display synchronization signal generated from said control information to produce a panel-matched video signal and panel-matched on-screen display (OSD) signal of which the resolutions correspond to that resolution of said display panel, and that produces at an output of the signal processor a composite video signal of said panel-matched video signal and said panel-matched OSD-signal together with said display synchronization signal; a scanning circuit that produces an output of a scanning signal in synchronism with said display synchronization signal produced from said signal processor so as to select ones of said arrayed display elements of said display panel; and a drive circuit that uses said composite video signal and said display synchronization signal produced from said signal processor to drive said display elements selected by said scanning signal produced from said scanning circuit, said signal processor comprising: a conversion circuit which converts the format of an inputted video signal; a panel-matched conversion circuit which converts a video signal produced from said conversion circuit to said panel-matched video signal; an OSD processing circuit which converts an inputted OSD signal to said panel-matched OSD signal; a synchronization signal generation circuit which supplies said control information and said display synchronization signal to said panel-matched conversion circuit and said OSD processing circuit; and an OSD composing circuit which composes said panel-matched video signal and said panel-matched OSD signal.