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Head mounted display system having virtual keyboard and capable of adjusting focus of display screen and device installed the same

  • US 20060007056A1
  • Filed: 07/09/2004
  • Published: 01/12/2006
  • Est. Priority Date: 07/09/2004
  • Status: Abandoned Application
First Claim
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1. A head mounted display system having a virtual keyboard and capable of adjusting a focus of a display screen comprising:

  • a signal processing unit for receiving image signals and processing the received image signals;

    a focus adjustment unit included in the signal processing unit for adjusting an input image according an input focus adjustment signal to generate an adjusted display image so that the adjusted display image responses the focus adjustment signal;

    an image display unit connected to the signal processing unit;

    the image display unit being installed at a head mounted display device for displaying the adjusted display image which is directly viewed by at least one eye of a user wearing the head mounted display; and

    a focus input unit connected to the focus adjustment unit;

    focus input unit being a manually operation device for generating the focus adjustment signal to the signal processing unit;

    the focus input unit providing a focus value to the focus adjustment unit; and

    a virtual keyboard input unit including a finger positioning unit, a keyboard display unit, a keying processing unit and a virtual keyboard.

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