COMPUTER EQUIPPED WITH DISPLAY DEVICE GENERATING VIRTUAL SCREEN AND CONTROLLING METHOD THEREOF

摘要

PURPOSE: A computer equipped with a display device generating a virtual screen and a controlling method thereof are provided to generate the virtual screen different from a screen output to a display part and not output to the display part by using a different graphic card without connecting with an external display device. CONSTITUTION: The second graphic controller(33) controls a video signal for the virtual screen(37) not output to the display part(35) when video by the first graphic controller(31) is displayed to the display part. A virtual mode selector(21) generates a signal for generating the virtual screen in real-time by a user. When a virtual screen generating signal is received from the virtual mode selector, a controller(27) makes the second graphic controller control the input video signal and generate the virtual screen. A screen switching selector(23) generates a screen switching signal for outputting the virtual screen to the display part in the real-time by the user.