Patent ID: 7522126
Filing Date: 2009-04-21
Classification: G09G,H04N

Abstract:
1. A video display appliance for displaying a video signal, which is inputted from a signal processing apparatus externally connected to the video display appliance, on a panel, the video display appliance comprising: an interface receiving a digital video signal to be displayed on the panel and a detection signal indicating a connection state of the signal processing apparatus from the signal processing apparatus; a microcomputer for controlling operation of the video display appliance according to the detection signal transmitted from the interface; a scaler for converting the video signal transmitted from the interface to match a first resolution of the panel under the control of the microcomputer when the detection signal indicates connection to a first type of signal processing apparatus, and the scaler for converting the video signal transmitted from the interface to match a second resolution of the panel when the second type of signal processing indicates connection to a second type of signal processing apparatus; and a driving circuit for driving the panel by using the video signal received from the scaler; wherein the signal processing apparatus is detachably connected to the video display appliance, and the signal processing apparatus includes a video signal processing apparatus for converting the video signal inputted from an external signal source into a digital signal and to output the converted signal to the video disolay appliance and a PC signal processing apparatus for converting a video signal and a control signal inputted from a PC into digital signals and to output the converted signals to the video display appliance, and the scaler determines whether the detection signal is inputted from the video signal processing apparatus or the PC signal processing apparatus through the interface, and commands the signal process.