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Image display apparatus

  • US 6,515,638 B2
  • Filed: 06/17/1999
  • Issued: 02/04/2003
  • Est. Priority Date: 06/19/1998
  • Status: Expired due to Fees
First Claim
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1. An image display apparatus comprising:

  • a display element displaying a video image;

    a light source illuminating said display element;

    a free-form surface prism guiding light of the video image from said display element, said free-form surface prism enlarging the video image on said display element and presenting the video image to an observer, said free-form surface prism having an incidence surface of which the light of the video image from said display element is incident, said incidence surface being tilted with respect to a visual axis toward the observer by a predetermined angle;

    a holding member supporting said display element and said free-form surface prism; and

    an electrical circuit board driving said display element, wherein said electrical circuit board and said display element are separated from each other but are electrically connected, and said electrical circuit board is arranged behind said display element, behind said free-form surface prism when viewed from the observer, or on at least one side of said free-form surface prism when viewed from the observer.

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