Progressive Scan - Usage in TVs, Video Projectors, and Monitors

Usage in TVs, Video Projectors, and Monitors

Progressive scan is used for most Cathode ray tube (CRT) computer monitors, all LCD computer monitors, and most HDTVs as the display resolutions are progressive by nature. Other CRT-type displays, such as SDTVs, typically display interlaced video only.

Some TVs and most video projectors have one or more progressive scan inputs. Before HDTV became common, some high end displays supported 480p (480 horizontal lines of resolution with progressive scan). This allowed these displays to be used with devices that output progressive scan like progressive scan DVD players and certain video game consoles. HDTVs support the progressively scanned resolutions of 480p and 720p. 1080p displays are available but are usually more expensive than the comparable lower resolution HDTV models. Computer monitors can use even greater display resolutions.

The disadvantage of progressive scan is that it requires higher bandwidth than interlaced video that has the same frame size and vertical refresh rate. For explanations of why interlacing was originally used, see interlaced video. For an in-depth explanation of the fundamentals and advantages/disadvantages of converting interlaced video to a progressive format, see deinterlacing.

Read more about this topic:  Progressive Scan

Other articles related to "video":

scan" class="article_title_2">Usage in TVs, Video Projectors, and Monitors - Advantages of Progressive Scan
... Absence of visual artifacts associated with interlaced video of the same line rate, such as interline twitter ... (sometimes referred to as anti-aliasing) of video to reduce interline twitter and eye strain ... In the case of most media such as DVD movies and video games, the video is blurred during the authoring process itself to subdue interline twitter when played back on interlace displays ...

Famous quotes containing the words monitors, usage and/or video:

    To anybody who can hold the Present at its worth without being inappreciative of the Past, it may be forgiven, if to such an one the solitary old hulk at Portsmouth, Nelson’s Victory, seems to float there, not alone as the decaying monument of a fame incorruptible, but also as a poetic approach, softened by its picturesqueness, to the Monitors and yet mightier hulls of the European ironclads.
    Herman Melville (1819–1891)

    I am using it [the word ‘perceive’] here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all. And this is a perfectly correct and familiar usage of the word.
    —A.J. (Alfred Jules)

    It is among the ranks of school-age children, those six- to twelve-year-olds who once avidly filled their free moments with childhood play, that the greatest change is evident. In the place of traditional, sometimes ancient childhood games that were still popular a generation ago, in the place of fantasy and make- believe play . . . today’s children have substituted television viewing and, most recently, video games.
    Marie Winn (20th century)