Title:
DISPLAY DEVICE AND METHOD FOR DRIVING SAME
Document Type and Number:
WIPO Patent Application WO/2006/137295
Kind Code:
A1
Abstract:
On a first path connecting a power supply wiring (PS) with a common cathode (COM1), a driving TFT (22), a switching TFT (24) and an organic EL element (EL1) are arranged in series. On a second path connecting a node (K) between the driving TFT (22) and the switching TFT (24) with a source wiring (Sj), a switching TFT (25) is arranged. A period wherein electricity is carried in the second path by having the switching TFT (25) in the ON status, and electricity is not carried in a branch section to the organic EL element (EL1) from the node (K) of the first path by having the switching TFT (24) in the OFF status is provided. Thus, a display device, which has higher contrast compared with that of conventional pixel circuits and suppresses deterioration of an electro-optic element, and a method for driving such display device are provided.
Inventors:
OHHASHI SEIJI
SENDA TAKAHIRO
SENDA TAKAHIRO
Application Number:
PCT/JP2006/311856
Publication Date:
December 28, 2006
Filing Date:
June 13, 2006
Export Citation:
Assignee:
SHARP KK (JP)
OHHASHI SEIJI
SENDA TAKAHIRO
OHHASHI SEIJI
SENDA TAKAHIRO
International Classes:
G09G3/30; G09G3/20; H01L51/50
Foreign References:
| JP2002351401A | 2002-12-06 | |||
| JP2004138773A | 2004-05-13 | |||
| JPH0792931A | 1995-04-07 | |||
| JP2005062794A | 2005-03-10 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (2-6 Tenjinbashi 2-chome Kita, Kita-k, Osaka-shi Osaka 41, JP)
Download PDF: