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Opacity filter for display device

  • US 9,286,730 B2
  • Filed: 01/26/2015
  • Issued: 03/15/2016
  • Est. Priority Date: 09/21/2010
  • Status: Active Grant
First Claim
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1. An optical see-through head-mounted display device, comprising:

  • a see-through lens comprising an augmented reality display region and an opacity filter, the opacity filter comprising a plurality of pixels, each pixel is controllable to adjust an opacity of the pixel, and the augmented reality display region extends in a field of view between a first boundary line and second boundary line of the field of view;

    at least one augmented reality emitter which emits light to an eye of a user via the augmented reality display region, the light represents an augmented reality image having a boundary; and

    at least one control circuit, the at least one control circuit is configured to cause the opacity filter to provide a region having a shape which corresponds to a shape of the augmented reality image, to provide the region with an opacity which is relatively high when the augmented reality image is at least a specified distance from the first boundary line and the second boundary line, and to provide a gradual transition in the opacity to a relatively low opacity as a head of the user moves sideward and the augmented reality image moves correspondingly toward the first boundary line, the gradual transition is based on a distance between the first boundary line and the boundary of the augmented reality image.

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