Image display device
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United States of America Patent
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-
Mar 24, 2009
Grant Date -
Jul 21, 2005
app pub date -
Dec 9, 2004
filing date -
Dec 10, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A image display device includes a driving unit that includes a first terminal and a second terminal, and controls current flowing through a light emitting unit based on a potential difference applied between the first terminal and the second terminal. The potential difference is higher than a predetermined drive threshold. The image display device also includes a threshold potential detecting unit that detects the potential difference; a luminance potential supplying unit that changes the potential difference to a value lower than the drive threshold by a luminance potential corresponding to a luminance of the light emitting unit; and a sweep potential supplying unit that controls the driving unit by supplying a sweep potential to the first terminal. The sweep potential is swept in a range between a value lower than the luminance potential and a value higher than the luminance potential.
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