OLED DISPLAY PANEL WITH PWM CONTROL
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United States of America Patent
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Issued Date -
Apr 14, 2011
app pub date -
Mar 17, 2009
filing date -
Mar 19, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A display panel which applies a PWM drive to a drive transistor (2) is provided. A drive transistor supplies current in accordance with its gate voltage, and the current is supplied to a light-emitting element (1) to illuminate the light emitting element. One end of a storage capacitor (6) is connected to the gate of the drive transistor, while the other end thereof is connected to a sweep line (12). A triangular wave which alternately repeats an up phase and a down phase is supplied to the sweep line in order to control an on period of the drive transistor in accordance with the gate voltage, to thereby control light emission of the light-emitting element.
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