Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2005-06-21
2009-06-30
Cho, James (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S068000
Reexamination Certificate
active
07554362
ABSTRACT:
The invention provides a semiconductor device having a current input type pixel in which a signal write speed is increased and an effect of variations between adjacent transistors is reduced. When a set operation is performed (write a signal), a source drain voltage of one of two transistors connected in series becomes quite low, thus the set operation is performed to the other transistor. In an output operation, the two transistors operate as a multi-gate transistor, therefore, a current value in the output operation can be small. In other words, a current in the set operation can be large. Therefore, an effect of intersection capacitance and wiring resistance which are parasitic on a wiring and the like do not affect much, thereby the set operation can be performed rapidly. As one transistor is used in the set operation and the output operation, an effect of variations between adjacent transistors is lessened.
REFERENCES:
patent: 5744878 (1998-04-01), Wachter et al.
patent: 6229506 (2001-05-01), Dawson et al.
patent: 6353337 (2002-03-01), Nasu et al.
patent: 6373454 (2002-04-01), Knapp et al.
patent: 6859193 (2005-02-01), Yumoto
patent: 6977543 (2005-12-01), Heedley et al.
patent: 7187351 (2007-03-01), Kwon
patent: 7253665 (2007-08-01), Kimura
patent: 7345657 (2008-03-01), Kimura
patent: 2003/0128199 (2003-07-01), Kimura
patent: 2003/0128200 (2003-07-01), Yumoto
patent: 2003/0156102 (2003-08-01), Kimura
patent: 2003/0169250 (2003-09-01), Kimura
patent: 2004/0085029 (2004-05-01), Kimura
patent: 2004/0085270 (2004-05-01), Kimura
patent: 1 441 324 (2004-07-01), None
patent: 2002-514320 (2002-05-01), None
patent: 2002-517806 (2002-06-01), None
patent: WO01/06484 (2001-01-01), None
patent: WO02/39420 (2002-05-01), None
patent: WO 03/038793 (2003-05-01), None
patent: WO03/038794 (2003-05-01), None
patent: WO03/038795 (2003-05-01), None
patent: WO03/038796 (2003-05-01), None
patent: WO03/038797 (2003-05-01), None
Cho James
Fish & Richardson P.C.
Semiconductor Energy Laboratory Co,. Ltd.
LandOfFree
Semiconductor device, driving method thereof and electronic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device, driving method thereof and electronic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device, driving method thereof and electronic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4146784