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Head-up display device for vehicles

  • US 7,688,516 B2
  • Filed: 05/06/2008
  • Issued: 03/30/2010
  • Est. Priority Date: 05/11/2007
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a panel, on which image data are displayed; and

    a combiner, that magnifies and reflects the image data displayed on the panel, and that has a ratio of DISC to CRC satisfying the below expression 1 and that has a ratio of CRC to DISV satisfying the below expression 2,wherein the expression 1 is 0<

    |CRC|<

    1, where DISC represents a distance on an optical route between the panel and the combiner, and CRC represents a radius of curvature of the combiner,wherein the expression 2 is 0.01<

    |CRC/DISV|<

    0.5, where CRC represents the radius of curvature of the combiner, and DISV represents a distance between an observer and a virtual image creating position.

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