noninterlaced

Noninterlaced refers to a method of displaying or recording video frames in which each frame is presented as a complete, sequential set of lines, rather than being split into two fields that are shown alternately. In an interlaced system, a frame is divided into an odd‑line field and an even‑line field; these fields are displayed in rapid succession to give the impression of a full picture. Noninterlaced, also known as progressive scan, renders all lines of the picture in a single pass, producing a full‑resolution image for each frame.

The technique originated with the transition from analog television, which traditionally employed interlacing to reduce bandwidth while maintaining perceived motion smoothness, to digital video and computer graphics, where bandwidth constraints are less severe and display technology can handle higher data rates. Progressive scanning is standard in modern LCD, LED, OLED screens, and most computer monitors, as well as in high‑definition broadcast standards such as 720p and 1080p.

Advantages of noninterlaced display include sharper motion clarity, reduced visual artifacts such as combing and flicker, and compatibility with digital processing pipelines that operate on whole frames. It also simplifies video compression and editing, because each frame is self‑contained. However, interlaced formats can still be encountered in legacy broadcast environments and some low‑bandwidth streaming scenarios, where the reduced data load may be beneficial.

The shift toward noninterlaced video has been driven by improvements in transmission capacity, display manufacturing, and consumer expectations for high‑quality motion rendering, making progressive scan the dominant format in contemporary media production and consumption.