System and method for decreasing energy usage of a transparent display case

  • US 10,455,671 B2
  • Filed: 10/12/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 10/09/2014
  • Status: Active Grant
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First Claim
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1. An apparatus for controlling the illumination of a display case for a plurality of products comprising:

  • a housing defining a compartment configured to hold the plurality of products;

    an access panel comprising a transparent display configured to display images, wherein the access panel is configured to move between an opened position and a closed position;

    an illumination device configured to illuminate the transparent display;

    a sensor positioned to determine whether the access panel is in the opened position or the closed position; and

    a processor electrically connected to the illumination device and the sensor, wherein said processor is configured to measure the amount of time that has passed since the access panel was placed in the closed position and drive the illumination device at a reduced power level based upon the amount of time that has elapsed;

    wherein the images displayed on the transparent display and any products located in the housing are capable of being simultaneously viewed when the access panel is in the closed position;

    wherein the reduced power level is a non-zero power level such that transparency of the transparent display is decreased but not rendered opaque.

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