| 摘要 |
A sub-field lighting rate measuring device is used to measure the lighting rate of a final sub-field. If the measured lighting rate exceeds a threshold value, a blank signal generator maintains a blank signal (BLK) at a low level during the address interval of the subsequent sub-field. An output control circuit provides, based on the blank signal (BLK), an output control signal (Oi) at a low level. In this case, no data pulse is applied to an address electrode, with the result that no power is consumed during the rising and falling of the data pulse.
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