Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2007-08-07
2007-08-07
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C327S109000, C327S110000, C327S111000, C327S112000, C326S082000, C326S083000, C326S084000, C326S085000, C326S086000, C315S169100, C315S169200, C315S169300, C345S204000
Reexamination Certificate
active
10787347
ABSTRACT:
The invention provides a semiconductor device which performs a write operation of a signal current rapidly to a current input type pixel. Before inputting a signal current, a precharge operation is performed by flowing a large current. After that, a signal current is inputted to perform the set operation. A predetermined potential can be obtained rapidly as the precharge operation is performed before the set operation. The predetermined potential is approximately equal to a potential after completing the set operation. Therefore, the set operation can be rapidly performed and a write operation of a signal current can be rapidly performed. By using two transistors, a gate width W can be long or a gate length L can be short in the precharge operation or the gate width W can be short and the gate length L can be long in the set operation.
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Lam Tuan T.
Nguyen Hiep
Semiconductor Energy Laboratory Co,. Ltd.
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