The display device of demo system and demo system

The display device of demo system and demo system

  • CN 102,053,789 B
  • Filed: 10/29/2010
  • Issued: 02/24/2016
  • Est. Priority Date: 10/29/2009
  • Status: Active Grant
First Claim
Patent Images

1. a display device for demo system, shows the electronic blackboard device optical illumination image with image displaying part, it is characterized in that, comprising:

  • Display device control part, it controls the action of this display device;

    Image processing part, the vertical direction of the first image being input to described display device, based on the instruction from described display device control part relevant to the projection angle of relatively described electronic blackboard device, reduces, generates the second image by it;

    Screen display control part, it is based on the instruction from described display device control part, generates the 3rd image shown together with described second image;

    Screen display synthesis handling part, described second image and the 3rd image synthesize in the mode do not overlapped each other by it, generate the 4th image;

    Distortion correcting process portion, it is based on the instruction from described display device control part relevant to the projection angle of relatively described electronic blackboard device, is reduced in the horizontal direction by described 4th image according to the position of vertical direction, generates the 5th image;

    WithOptics display part, described 5th image shows described electronic blackboard device optical illumination by it,Described display device control part controls described screen display control part, with according to reducing process to the vertical direction that the first image carries out in described image processing part, when described 3rd image carrying out screen display is word message display image, reduce the line number of described word message, when described 3rd image carrying out screen display be icon display image time, reduce described icon display image icon between interval.

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