US Patent 6924602 Organic EL pixel circuit
Patent 6924602 was granted and assigned to Sanyo Electric Co Ltd on August, 2005 by the United States Patent and Trademark Office.
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Patent abstract
A discharge transistor (TFT3) which connects the upper end of an organic EL element (EL) and a negative power source (VEE) and a control transistor (TFT4) which connects the upper end of a storage capacitor (SC) with a power source (PVDD) are provided. These transistors (TFT3, TFT4) are turned on by the upper gate line, so that the capacitor of the organic EL element (EL) is discharged prior to the selection of the line for these transistors.
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Patent Inventor Names
Naoaki Komiya0
Date of Patent
August 2, 2005
0Patent Application Number
100744050
Date Filed
February 12, 2002
0Patent Primary Examiner
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US Patent 6924602 Organic EL pixel circuit
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