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WIDE ANGLE AND HIGH RESOLUTION TILED HEAD-MOUNTED DISPLAY DEVICE

  • US 20130187836A1
  • Filed: 04/30/2010
  • Published: 07/25/2013
  • Est. Priority Date: 04/30/2010
  • Status: Active Grant
First Claim
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1. A tiled head-mounted display device, comprising:

  • an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and

    a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical,wherein each prism with free-form surfaces and the corresponding micro-display constitutes a display channel, a coordinate system is defined as;

    global coordinate origin O is exit pupil center;

    Z-axis is in a direction along the viewing axis of user'"'"'s eye;

    Y-axis is perpendicular to Z-axis and extends right above the eye;

    X-axis is perpendicular to both Y-axis and Z-axis, constituting a Cartesian coordinate;

    wherein the display channels are tiled so that an overall field of view of the tiled device can be substantially a summation of individual field of view of each display channel and the center of exit pupil of each display channel in the tiled device is located at a pupil center of the user'"'"'s eye.

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