Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kimio Anai0
Date of Patent
December 30, 2008
0Patent Application Number
112352930
Date Filed
September 27, 2005
0Patent Primary Examiner
Patent abstract
A flat display device includes, vertical synchronization lock means which generates an internal vertical synchronization signal, a window signal generating circuit which generates a window signal by use of the internal vertical synchronization signal, a detecting circuit which detects whether or not an external vertical synchronization signal is present in a period of the window signal, and a determination circuit which determines whether a preset condition that a plurality of detection signals are present in a preset period is satisfied or not and controls an output inhibition circuit to inhibit a gate signal from being output when the preset condition is not satisfied.
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