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

  • US 10,555,406 B2
  • Filed: 08/27/2018
  • Issued: 02/04/2020
  • Est. Priority Date: 10/09/2014
  • Status: Active Grant
First Claim
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1. An apparatus for controlling the illumination of a display case comprising:

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

    an access panel mounted to the housing, said access panel comprising a transparent display for displaying images, wherein the access panel is configured for movement between an opened position, whereby at least one of the plurality of products may be accessed, and a closed position;

    an illumination device for illuminating the transparent display;

    a sensor configured to determine if the access panel is in the opened position; and

    a processor electrically connected to the illumination device and the sensor, wherein said processor is configured to measure the time elapsed since the access panel was last moved out of the opened position and drive the illumination device at a reduced power level based upon the amount of time that has elapsed since the access panel was last moved out of the opened position.

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