Display with electrochromic films and having low power consumption
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United States of America Patent
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Jul 28, 2015
Grant Date -
May 1, 2014
app pub date -
Jun 28, 2013
filing date -
Oct 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A backlight module of a display provides a backlight controlled by a switch. A first electrochromic film comprises a plurality of first electrochromic devices which may each be powered on to appear white or transparent, and a first power supply module. A second electrochromic film comprises a plurality of second electrochromic devices which may each be powered to appear black or transparent, and a second power supply module. The first electrochromic film is positioned between the backlight module and the second electrochromic film. A controller applies voltages to the first electrochromic devices and to the second electrochromic devices to control appearances of each individual first electrochromic devices and each individual second electrochromic devices.
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