Interlaced Scan / Interlaced Video (i)

Interlaced video is a technique for doubling the perceived frame rate of a video display without consuming extra bandwidth.

This is how older TVs worked.

  1. Interlaced Video (i):
    • Used in older broadcast standards like NTSC and PAL.
    • Works by displaying odd and even lines in alternating frames.
    • Can cause motion artifacts and is less suited for today’s high-resolution displays.
  2. Progressive Scan (p):
    • Displays all lines in each frame sequentially.
    • Offers better picture quality with smoother motion and clarity.
    • Standard in modern TVs, including LCD, LED, OLED, and 4K UHD models.
    • Compatible with digital media formats and modern broadcasting standards.