Patent ID: 7055079
Filing Date: 2006-05-30
Classification: G09G

Abstract:
1. A verifying apparatus for a liquid crystal driving circuit having a plurality of driving stages, comprising: a storage unit for receiving and storing a first trigger pulse during a first time period and receiving and storing a second trigger pulse during a second time period, and then sequentially outputting a first shifted signal and a second shifted signal that correspond to the stored first and second trigger pulse; a first data switch electrically coupled to the output terminal of the storage unit so that the output terminal of the first data switch is electrically connected to a first output path during the first time period and the output terminal of the first data switch is electrically connected to a second output path during the second time period; and an edge detector having an input terminal electrically connected to the first output path and an output terminal electrically connected to the second output path, wherein if no edge transition is detected during the first time period, the second output path is set to a pre-defined logic potential during the second time period.