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What is 100Hz scanning?

April 26, 2017scanning

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What is 100Hz scanning?

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top Most TVs have a 50Hz refresh rate. This means that they refresh the interlaced picture 50 times per second. This however can result in a noticeable flicker. 100Hz scanning digitizes each of the two TV fields, and stores them in a series of memory chips. The digitized fields are displayed twice in the same 1/50sec period. In other words, the field frequency is doubled from 50Hz to 100Hz. Progressive scan is a more advanced development of this idea.