The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2015
Filed:
Aug. 09, 2011
Kwang-hae Kim, Yongin, KR;
Kwan-wook Jung, Yongin, KR;
Hun-tae Kim, Yongin, KR;
Samsung Display Co., Ltd., Gyeonggi-do, KR;
Abstract
A driving method of a display device is disclosed. According to one aspect, the method includes applying a first voltage of a predetermined level to an anode of a plurality of organic light emitting diodes (OLEDs) included in a plurality of pixels. A plurality of driving transistors are driven to be connected to the plurality of OLEDs. The method further includes transmitting a first power source voltage of a logic high level to the anode of the plurality of OLEDs as a threshold voltage to compensate a threshold voltage of the plurality of driving transistors, and applying a data voltage to a plurality of pixels as a data writing step turning on a plurality of driving transistors. The second power source voltage applied to the cathode of the plurality of OLEDs is changed to a second voltage of the logic low level in a state in which a plurality of driving transistors are turned on. In the turned on state, light is emitted from the plurality of OLEDs.