Comparing HDTV 1080p and HDTV 1080i formats.
The latest hype in High Definition world seems to be about the new 1080p HDTV's. Lets a step back and see what 1080i and 1080p really means. On the surface there is no difference. They are identical in their resolution of 1920 x 1080 pixels. The difference comes under the hood, even though they both display the same resolution, 1080i refreshes screen in an interlaced manner, odd horizontal lines first and then even horizontal lines. This is all done at the refresh rate of a particular TV, normally 1/30 of a second. 1080p on the other hand refreshes the screen all at once. Hence the "i" stands for interlaced and "p" stands for progressive.
1080p in theory is considered better then 1080i because of its ability to refresh in a progressive manner, thus having a name of "Ultra-HD" or "Full HD". The ability to refresh screens at once makes for a crisp clean image, which is preferred for images in motion, like sports and fast action movies.
Having said this, the next question that comes to mind is what content is available in true 1080p format. And the answer to that question is: None. All the programming provided by cable or satellite companies is either in 1080i or 720p format. HD-DVD, Blu-Ray and Sony Playstation 3 are capable of outputting 1080p.
So why get 1080p?
Given the size increases in LCD and Plasmas, ranging from 13" to 101" from quality manufacturer's like Samsung, LG, Sony, Runco and Marantz, the extra level of refresh rate will make a difference between a pixilated image and a clean smooth image once the 50" threshold is crossed. 1080p is currently the digital standard for filming digital motion pictures. Directors such as George Lucas shoot their digital films in this high definition mode to be shown in home theaters equipped with 1080p equipment.
Why not let the home automation experts at Illuminations Lighting Design assist you with your home theater, surround sound, or HDTV plasma needs. They can be reached toll free at 800-863-1184 or online at www.illuminationslighting.com.
1080p in theory is considered better then 1080i because of its ability to refresh in a progressive manner, thus having a name of "Ultra-HD" or "Full HD". The ability to refresh screens at once makes for a crisp clean image, which is preferred for images in motion, like sports and fast action movies.
Having said this, the next question that comes to mind is what content is available in true 1080p format. And the answer to that question is: None. All the programming provided by cable or satellite companies is either in 1080i or 720p format. HD-DVD, Blu-Ray and Sony Playstation 3 are capable of outputting 1080p.
So why get 1080p?
Given the size increases in LCD and Plasmas, ranging from 13" to 101" from quality manufacturer's like Samsung, LG, Sony, Runco and Marantz, the extra level of refresh rate will make a difference between a pixilated image and a clean smooth image once the 50" threshold is crossed. 1080p is currently the digital standard for filming digital motion pictures. Directors such as George Lucas shoot their digital films in this high definition mode to be shown in home theaters equipped with 1080p equipment.
Why not let the home automation experts at Illuminations Lighting Design assist you with your home theater, surround sound, or HDTV plasma needs. They can be reached toll free at 800-863-1184 or online at www.illuminationslighting.com.
Labels: home theaters
posted by xinger at
10:24 AM
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