Method and device for driving an OLED device
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United States of America Patent
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Jun 10, 2014
Grant Date -
Jul 12, 2012
app pub date -
Jun 14, 2010
filing date -
Jun 19, 2009
priority date (Note) -
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Abstract
An OLED has a characteristic threshold voltage (V2) above which the OLED is to be considered ON. A method for driving an OLED (20) includes the steps of switching the OLED on and off. According to the invention, a method for driving an OLED (20) includes of avoiding driving the OLED within a voltage range between zero and a predetermined voltage level (Vx) higher than zero, wherein this predetermined voltage level (Vx) may be in the order of said characteristic threshold voltage (V2). As a result, damage to the OLED is prevented or reduced, resulting in increased reliability of the OLED in terms of life time expectancy.
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