Presented by HDTV Shop

Access to 1080p is not only determined by whether your HDTV has the ability to access a 1080p signal directly, but also what format of 1080p your HDTV will accept.

Almost all HDTVs that accept a 1080p input signal directly can accept what is known as 1080p/60. 1080p/60 represents a 1080p signal transferred and displayed at a rate of 60 frames-per-second (30 frames displayed twice per second). This is a standard progressive scan 1920×1080 pixel video signal.

However, with the advent of Blu-ray Disc and HD-DVD, a new variation of 1080p is being promoted and implemented: 1080p/24. What 1080p/24 represents is the frame rate of standard 35mm film transferred directly in its native 24 frames-per-second from a source (such as a film on a Blu-ray or HD-DVD disc). This means that in order to display this image on an HDTV, the HDTV has to have the ability to display 1080p resolution at 24 frames per second.

Up to this point, most Blu-ray Disc and HD-DVD players read the 1080p/24 format information off of the disc and then reprocesses it so that it will be able to output the signal as 1080p/60, thus making it compatible with most 1080p input compatible HDTVs.

However, LG (with others to follow) are starting to introduce Blu-ray Disc and HD-DVD players that output 1080p/24 off the disc directly and sends that signal unchanged to an HDTV. In this case, if the HDTV cannot process or display the 1080p/24 signal directly, the Blu-ray Disc or HD-DVD player will then reprocess the 1080p/24 signal to 1080i so that the HDTV will recognize the signal. If the HDTV is 1080p/60 capable, the HDTV will reprocess the 1080i signal to 1080p/60 in order to be able to display the image on the screen.

Before You Buy a 1080p Capable HDTV

If you are considering the purchase of a 1080p-capable television, you can do three things before you make your buying decision:
1. In many cases you can actually download the user manual from the Manufacturer’s website.
2. The store should have the user manual available for inspection – if not – walk out.
3. You can check the basic TV specifications on the Manufacturer’s site – which should indicate the 1080p spec, and whether it references 1080p processing only or also includes 1080p input capability.
4. If you have further questions regarding your purchase, contact Tech Support for the model 1080p HDTV you are considering.

Final Take

Although 1080p has several faces, as a consumer, don’t let this confuse you. If you are considering the purchase of an HDTV smaller than 40-inches, the actual visual difference between the three main high definition resolutuions, 1080p, 1080i, and 720p are minimal if noticable at all.

The larger the screen size, the more noticable the difference between 1080p and other resolutions. If you are considering a purchase of an HDTV with a screen size of 40-inches or larger, go for 1080p if you can afford it, and also consider a set that has 1080p/24 capability.
(by Robert Silva)

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This entry was posted on Saturday, February 6th, 2010 at 7:01 am and is filed under Technical Information. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.