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Method and apparatus for testing color sequential, near-to-the-eye, and similar display devices

  • US 20020067184A1
  • Filed: 07/26/2001
  • Published: 06/06/2002
  • Est. Priority Date: 10/27/2000
  • Status: Abandoned Application
First Claim
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1. An apparatus for testing a liquid crystal display (LCD) device, comprising:

  • a light emitting device (LED) arranged to side-illuminate the LCD device such that a gradient of light is produced across the LCD device;

    a camera device arranged to capture an image of the LCD device that is positioned axially from the device such that a portion of the gradient of light reflected from the LCD device is received by the camera device; and

    a controller configured to analyze a set of criteria applied to the image of the LCD device according to a test sequence, and determine whether the LCD device meets the set of criteria.

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