LIGHT EMITTING DEVICE
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United States of America Patent
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Issued Date -
May 10, 2012
app pub date -
Nov 19, 2010
filing date -
Nov 4, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a light emitting device, comprising: a solar cell unit, a capacitor unit, a charging circuit unit, an organic light emitting diode (OLED) unit, and a discharging circuit unit. The solar cell unit is utilized for converting solar energy to generate a current. The capacitor unit is coupled to the solar cell unit and utilized for storing electric power. The charging circuit unit is coupled between the solar cell unit and the capacitor unit, and utilized for using the current to charge the capacitor unit. The OLED unit is coupled to the capacitor unit. The discharging circuit unit is coupled between the capacitor unit and the OLED unit, and utilized for discharging the capacitor unit and control lighting of the OLED unit.
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