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Patent Searching and Data


Title:
表示装置
Document Type and Number:
Japanese Patent JP5041772
Kind Code:
B2
Abstract:

To solve the lack of program time, which is a problem of a display device including an EL element, and to provide a display device including a pixel circuit with a high aperture ratio and a driving method thereof.

In a circuit including a driving transistor, a capacitor, a display element which can be used as a capacitor, a first power supply line and a second power supply line, potentials of the first power supply line and the second power supply line are set to be almost the same, thereby a threshold voltage of the driving transistor is held in the display element, and after that, charges are distributed to the display element and the capacitor.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
Yasunori Yoshida
Application Number:
JP2006249113A
Publication Date:
October 03, 2012
Filing Date:
September 14, 2006
Export Citation:
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Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
G09G3/30; G09G3/20; H01L51/50
Domestic Patent References:
JP2004310006A
JP2004078210A
JP2003177709A
JP2004280059A
Other References:
S.Ono, Y.Kobayashi, K.Miwa, T.Tsujimura,Pixel Circuit for a-Si AM-OLED,IDW'03 Proceedings of The 10th International Display Workshops,The Society for Information Display,2003年12月 3日,p.255-258