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interlaced scanning
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Diagram showing interlaced scanning in television: the top left image displays A lines from the first field, the top right shows B lines from the second field filling in the gaps, and the bottom image combines both fields to form a complete picture of an airplane.
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interlaced scanning

electronics
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Diagram showing interlaced scanning in television: the top left image displays A lines from the first field, the top right shows B lines from the second field filling in the gaps, and the bottom image combines both fields to form a complete picture of an airplane.
interlaced scanning for standard television display The first field, made up of evenly spaced scan lines (A), is followed by the second field, whose scan lines (B) fall between the lines of the first field. The interlaced fields follow each other so rapidly that they combine in the viewer's eye to form a complete picture, or frame, on the television screen.

Interlaced scanning is a technique used in television and computer monitors where each video frame is divided into two fields. One field displays the odd-numbered horizontal lines, and the other displays the even-numbered lines. These fields are then displayed sequentially, with the second field's lines falling into the empty spaces of the first. This method allows for a smoother display of motion by increasing the field rate without significantly increasing the bandwidth required. All standard television broadcast services worldwide utilize interlaced scanning. This contrasts with progressive scanning, where all lines of a frame are drawn in a single pass.1234

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5 Britannica Sources
  1. interlaced scanning
  2. television - Interlaced lines
  3. progressive
  4. television - Deflection signals
  5. interlaced

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