High Definition Tv Resolutions The Basics



High Definition Tv Resolutions The Basics

High Definition TV Resolutions: the​ Basics
What makes High Definition TV so great? Most HDTV watchers would tell you that it's simple: higher resolution .​
That's what sets HDTV apart from regular TV.
Regular television, or​ standard definition as​ it's also called, shows up to​ 480 pixels per line .​
It looks good if​ you've never experienced HDTV's higher resolution .​
With HDTV, the​ resolution depends on the​ source .​
There are two main source resolutions used in​ HDTV: 1080i and​ 720p.
1080i
1080i has a​ resolution of​ 1,920 by 1,080 pixels .​
This is​ a​ major improvement over standard definition television .​
CBS, NBC, Discovery Channel's HD broadcasts, PBS and​ the​ Xbox 360 all use this resolution .​
Of course, you can watch these stations on a​ lower resolution TV set, but if​ you have a​ 1080i set, you'll get the​ better resolution.
Also, 1080i is​ in​ a​ widescreen format .​
This is​ another great feature of​ HDTV.
720p
720p has a​ lower resolution .​
It's 1,280 by 720 pixels .​
Even though it​ has a​ lower resolution than 1080i, the​ difference is​ not as​ noticeable as​ the​ difference between either one and​ a​ standard definition TV .​
720p also has the​ widescreen format .​
ABC, Fox and​ ESPN's HD broadcasts all use this resolution.
720p's resolution is​ lower, but it​ has a​ feature called progressive scan that 1080i doesn't .​
Progressive scan makes the​ movement on screen more fluid and​ realistic .​
Progressive scan makes the​ image move more smoothly.
480p
There is​ also a​ 480p format, which Fox uses for​ its digital broadcasts, but it's technically not HDTV, although it​ can be viewed on HDTV's .​
It's 852 by 480 pixels, widescreen and​ has progressive scan .​
Fox is​ the​ only network that uses this resolution, but some DVD players use it​ because of​ the​ smoother movement of​ progressive scan.
1080p
There is​ a​ newer format called 1080p which has the​ high resolution of​ the​ 1080i with the​ progressive scan of​ the​ 720p, but no network uses it​ yet .​
It's mostly a​ resolution format that some HDTV's are made in .​
According to​ reviews, 1080p isn't very much different than 1080i .​
Unless you have a​ large TV, like something over 46 inches, there's no noticeable difference.
The 1080p might be good for​ serious HDTV nuts .​
It does enable manufacturers to​ add special features, like increased contrast or​ better color .​
Unless you have a​ really good eye, you might not notice these differences, though .​
And, the​ 1080p sets usually cost quite a​ bit more than the​ others .​
In the​ next few years, there will probably be more reasonably priced 1080p sets .​
It's expected that more networks will begin taking advantage of​ 1080p's resolution and​ possibilities and​ begin broadcasting in​ 1080p .​
If this happens, 1080p sets may become a​ better buy.

High Definition Tv Resolutions The Basics





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