System for decreasing energy usage of a transparent LCD display case
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Oct 9, 2015
filing date -
Oct 9, 2014
priority date (Note) -
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Abstract
An apparatus for controlling a backlight is disclosed. The apparatus includes a housing and door. A transparent liquid crystal display and associated backlight is positioned between front and rear glass panels of said door. A door sensor is positioned to detect if the door is open or shut, and a controller connected to the backlight and door sensor measures the amount of time that has passed between door openings and drives the backlight at various levels based upon the elapsed time.
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