1080i

Interlaced television format

1080i is a video display format with 1080 horizontal lines of resolution, where the "i" stands for interlaced—meaning the image is drawn in two alternating passes of odd and even lines.

This was the standard for early HD television broadcasts and still appears on many cable and satellite channels.

Compare with 1080p, which draws all lines in a single pass (progressive scan) for smoother motion.

interlaced

scanlines

Horizontal display rows

combing · flicker · CRT · phosphor · raster · telecine · pulldown · jaggies · bob · weave

display

HDTV

Enhanced-resolution television, abbreviated

LCD · LED · OLED · screen · monitor · 16:9 · upscaling · downscaling

comparison

1080p

Video resolution standard

  • 720p1280x720 pixel display
  • 480iInterlaced video format
  • 480pLow-res video format

4K · UHD · progressive · resolution · pixels · upgrade · bandwidth · compression · bitrate

broadcasting

television

Broadcast viewing device

network · satellite · cable · antenna · airwaves · frequency · receiver · NTSC · PAL · terrestrial

Categories
Opposites
scan type

1080i1080p

Video resolution standard

progressive scan · 720p · 4K · 480p

resolution quality

1080i480i

Interlaced video format

240p · standard definition · 4K · low resolution · SDTV

Familiarity
Top 500,000
Profile
Used worldwide · Rated G