| 摘要 |
A method and circuit for improving a quality of display on an LAD screen are disclosed. The method is to synchronize a vertical synchronization signal of a video signal supplied to an LAD system with an oscillation signal produced by a burst mode DC-to-AC inverter driving the lamps of the system in order to suppress interference noise appearing on an LCD screen. The circuit suggested includes mainly two semiconductor switches, impedance elements, and a diode to realize the synchronization function.
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