Invention Grant
- Patent Title: Organic electroluminescent display device and method of driving the same
- Patent Title (中): 有机电致发光显示装置及其驱动方法
-
Application No.: US12453617Application Date: 2009-05-15
-
Publication No.: US08547305B2Publication Date: 2013-10-01
- Inventor: Seung-Tae Kim , Hae-Jin Bae , Ho-Min Lim , Won-Kyu Ha , Hak-Su Kim
- Applicant: Seung-Tae Kim , Hae-Jin Bae , Ho-Min Lim , Won-Kyu Ha , Hak-Su Kim
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: McKenna Long & Aldridge LLP
- Priority: KR10-2008-0113712 20081115
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/14 ; G09G3/32 ; G09G5/00

Abstract:
An organic electroluminescent display device includes an organic electroluminescent diode receiving a driving voltage and a first ground voltage; first and second driving thin film transistors for providing a driving current to the organic electroluminescent diode, each of the first and second driving thin film transistors receiving one of the driving voltage and the first ground voltage; a first switching thin film transistor receiving a data voltage and switched by an nth scan signal to output the data voltage; a second switching thin film transistor switched by a current providing signal to provide the one of the driving voltage and the first ground voltage to the second driving thin film transistor; a third switching thin film transistor receiving a second ground voltage and switched by a selection signal to output the second ground voltage to an output terminal of the first switching thin film transistor; a fourth switching thin film transistor disposed among an output terminal of the second switching thin film transistor, a gate terminal of the first driving thin film transistor and a gate terminal of the second driving thin film transistor and switched by the selection signal; and a first capacitor disposed among the output terminal of the first switching thin film transistor, the gate terminal of the first driving thin film transistor and the gate terminal of the second driving thin film transistor, wherein “n” is a positive integer.
Public/Granted literature
- US20100123700A1 Organic electroluminescent display device and method of driving the same Public/Granted day:2010-05-20
Information query
IPC分类: