Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Susumu Edo0
Nobuyuki Ishige0
Shinichi Komura0
Shoichi Hirota0
Date of Patent
April 21, 2009
0Patent Application Number
110022120
Date Filed
December 3, 2004
0Patent Primary Examiner
Patent abstract
A scanning-line selecting circuit is configured by connecting basic circuits with each other over plural stages. Each of the basic circuits includes a basic scanning-line driving circuit and a voltage raising circuit. A basic scanning signal is inputted into the basic scanning-line driving circuit, which, then, outputs a scanning signal. A charge pulse, a selecting signal, and a discharge pulse are inputted into the voltage raising circuit, which, then, drives the basic scanning-line driving circuit. Accordingly, in the basic circuits, there exists none of the problems of threshold-value shift and voltage lowering. This characteristic makes it possible to implement high efficiency and stable operation.
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