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US Patent 7218295 Driving method for active matrix OLED display

Patent 7218295 was granted and assigned to AU Optronics on May, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Current Assignee

AU Optronics

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7218295

Patent Inventor Names

Chao-Chin Sung0

Date of Patent

May 15, 2007

Patent Application Number

10791158

Date Filed

March 1, 2004

Patent Primary Examiner

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Richard Hjerpe

Patent abstract

A driving method for an active matrix OLED display. In the driving method, a first current is provided to flow through an OLED of a pixel in a first period of one display period, according to a video signal on the data electrode and a scan signal on the scan electrode. Next, a second current is provided to flow through the OLED in a second period of the display period to neutralize carrier accumulation inside the OLED, wherein the first current and the second current flow in opposite directions.