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Flat panel display system having direct monitoring and overhead projection monitoring capability

  • US 6,144,360 A
  • Filed: 04/01/1998
  • Issued: 11/07/2000
  • Est. Priority Date: 06/27/1995
  • Status: Expired due to Term
First Claim
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1. A display subsystem for displaying video information, said display subsystem comprising:

  • (a) a display assembly for rendering said video information, said display subsystem comprising;

    (i) a flat panel display matrix having a first surface for viewing during direct monitoring and an opposite surface for viewing during overhead projection monitoring wherein said first surface is for providing protection to said flat panel display matrix from heat energy emanating from a proximately located overhead projector during said overhead projection monitoring when said opposite surface is being viewed;

    (ii) a light source positioned along two opposite edges of said flat panel display matrix for providing back-light for said flat panel display matrix; and

    (iii) a circuit for providing video information to said flat panel display matrix in a first direction during said direct monitoring and in a second direction during said overhead projection monitoring, said second direction being reverse to said first direction; and

    (b) a removable door assembly, adapted for insertion into and removal from said display assembly, said removable door assembly comprising a light pipe for optically coupling with said light source to distribute light across said flat panel matrix when said removable door assembly is inserted into said display assembly.

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