| 摘要 |
A frequency monitoring circuit supplies a signal for selecting a sequence data set to a sequence data storage circuit when a frequency of a vertical synchronization signal which is input through an input terminal is higher than a predetermined frequency, in order to generate a shortened sub field sequence by a sequence generator circuit. The sequence generator circuit reads the sequence data set, which is allowed to be read by the sequence generator circuit based on the signal supplied, from the frequency monitoring circuit from the sequence data storage circuit. The sequence generator circuit generates a drive sequence based on the read sequence data set. The sequence generator circuit supplies the generated drive sequence to a data selector circuit and a drive circuit to drive a plasma display panel properly.
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