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Native Resolution of a fixed-pixel display device such as TV and monitor is defined as the total number of horizontal pixels across each scanning line by the total count of vertical lines stacked top to bottom.
Standard (Analog) Definition fixed-pixel display has 704 pixels across each of 480 scanning lines (704 x 480). In order to take full advantage of HDTV`s ability, the HD signal from broadcast or DVD player is essential and the display device must be LCD, plasma, or DLP device that has the minimum native resolution of either:
(1) “720p” (1,280 x 720) that represents 1,280 pixels across each of 720 progressively scanned lines with a widescreen 16:9 aspect ratio or
(2) "1080i" (1920 x 1080), which represents a 16:9 widescreen image with 1920 pixels across each of 1080 interlaced scan lines.
720p and 1080i are the minimum resolution of “High Definition” formats defined by the HDTV standard and they are both defined as HD. 1080i is capable of rendering more picture detail and 720p has higher data bandwidth and horizontal scan rate. But the market attention has been focusing to p (progressive scan lines) from I (interlaced scan lines).
In 2008, Most of the TV brands have launched the newest models of 1080p instead of 1080i to the consumer market. |
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