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NOTEBOOK COMPUTER WITH DUAL SCREENS

  • US 20090219254A1
  • Filed: 04/09/2008
  • Published: 09/03/2009
  • Est. Priority Date: 03/03/2008
  • Status: Abandoned Application
First Claim
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1. A notebook computer with dual screens comprising:

  • A first display screen and a second display screen having a touch screen function;

    a motherboard comprising a north bridge and a south bridge;

    a super input/output device;

    a touch screen control circuit, the touch screen control circuit connected to the south bridge through the super input/output device;

    a channel selection circuit connected to an output of the touch screen control circuit;

    a first signal selection circuit and a second signal selection circuit respectively connected to two outputs of the channel selection circuit via a switch, the first and second display screens respectively connected to the first and second signal selection circuits; and

    a video card with dual ports, the two ports of the video card connected to the first and second signal selection circuits, an input of the video card connected to the motherboard, wherein when the switch turns on, the super input/output device starts the touch screen control circuit to control the touch screen form a virtual keyboard;

    when the switch turns off, the first and second signal selection circuits receive the signal from the video card for display of the first and second display screens.

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