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What is Interlaced vs Non-Interlaced?

April 26, 2017interlaced non-interlaced vs

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What is Interlaced vs Non-Interlaced?

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A monitor image is produced by refreshing or re-painting the screen, starting at the top and moving to the bottom. The lines of the screen (from top to bottom) are numbered. An Interlaced monitor or video mode paints odd numbered lines first, then even numbered lines. For example: Lines 1, 3, 5, 7, 9, 11, 13, 15 etc are refreshed first, then the monitor starts at line 2, and refreshes lines 2, 4, 6, 8, 10, 12, 14 etc.. (this results in more flicker and poorer quality) A Non-Interlaced monitor or video mode refreshes lines sequentially, 1, 2, 3, 4, etc.