TOUCHSCREEN FREQUENCY CONVERTER AND DRIVE SYSTEM
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United States of America Patent
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Issued Date -
Jan 12, 2017
app pub date -
Mar 21, 2016
filing date -
Mar 20, 2015
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Abstract
There is provided displaying a user interface during a power outage. A touchscreen comprises a lower layer comprising an electronic paper display and an upper layer comprising a transparent display. The touch screen may be arranged in a frequency converter and a drive system.
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