Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2008-12-09
2011-11-08
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S098000, C345S100000, C345S204000, C326S080000, C326S081000, C326S091000
Reexamination Certificate
active
08054264
ABSTRACT:
The present invention provides a display device which can achieve the high breakdown voltage proof property, the enhancement of reliability or the expansion of the designing/process tolerance of transistors by the improvement of a circuit. A display device includes a plurality of pixels and a drive circuit which drives the plurality of pixels. The drive circuit includes a p-type first transistor which has a first electrode thereof connected to a first power source line to which a reference voltage V1 is applied, a p-type second transistor which has a first electrode thereof connected to a second electrode of the first transistor and a second electrode thereof connected to an output terminal thereof, an n-type third transistor which has a first electrode thereof connected to a second power source line to which a reference voltage V2 is applied, and an n-type fourth transistor which has a first electrode thereof connected to a second electrode of the third transistor and a second electrode thereof connected to an output terminal thereof. A first bias voltage Vcp is applied to a control electrode of the second transistor and a second bias voltage Vcn is applied to a control electrode of the fourth transistor. Further, a relationship V2<Vcp<V1 and a relationship V2<Vcn<V1 are satisfied.
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Goto Kazutaka
Hasegawa Atsushi
Miyazawa Toshio
A. Marquez, Esq. Juan Carlos
Hitachi Displays Ltd.
Nguyen Jennifer
Stites & Harbison PLLC
Wang Quan-Zhen
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