HD Question

[citizen X]

HD Question

I’m planning to buy a 27 in HDTV and I’m seeing all these number being thrown around, 1080i/720p/480p/480i.

Is 720p sharper then 1080i, because the HDTV I’m interested in, has a resolution of 1080i

Can some one put these resolution in order from ok to best?

I know for some of u this is a stupid question but I need to know

thanks :top:

[Iron Orta]

As far as im aware higher is better, so 1080i would be the very good. Also the xbox 360 requires a game to run at atleast 720i. :) hope that helps.

[Iron Orta]

Okay got some more info 1080i stands for the HDTV resolution of 1920x1080 pixels and 720p has the resolution of 1280x720 pixels. So yes, 1080i is the better version. The "i" and the "p" at the end of the number refers either "interlaced" or "progressive" format. Ill explain these below:

Interlaced

Method of smoothening the video picture moving by having double the amount of frames than the video's fps value suggests.

Basically, how the interlacing is done, let's say in PAL format, is that each frame is split into two separate pictures, which both are missing half of the picture information. The split is done by its horizontal lines. The PAL video contains 576 horizontal lines -- let's say that the numbering of these lines begins from the top of the frame being the line number 1. The frame is being split to half-frame A and half-frame B -- the half-frame A would contain lines 1, 3, 5, 7, ... and the half-frame B would contain horizontal lines 2, 4, 6, 8, 10, ...

So, when the video is shown with PAL that has frame frequency (fps) of 25fps, there are 50 "half frames" per second that are being updated. First comes the first full frame's "half A" that fills horizontal lines 1, 3, 5, .. leaving other ones blank (assuming that we start from a "zero state" that output doesn't have anything shown before we start counting this). Then comes first full frame's "half B" that fills the missing lines 2, 4, 6, ... and leaves the existing "half A"'s lines showing as well -- now we have the frame no.1 fully shown on screen. Then comes frame no.2's "half A" that then wipes off the frame no.1's "half A", but leaves the frame no.1's "half B" showing. So, now we have a mixture where lines 1, 3, 5, 7, .. are being filled by frame no.2 and lines 2, 4, 6, .. are being filled by frame no.1.

Progressive

In standard, interlaced analog TV, the picture on TV is changed 50 or 60 times (50Hz in Europe/PAL systems and 60Hz in most NTSC systems, including the American one), but the picture contains only every other horizontal line and the line between is left "empty" -- and the next frame then contains only the horizontal lines missed in the last frame. So, therefor in interlaced picture, at 50Hz frequency, the picture actually changes only 25 times per second (so its framerate is 25fps).

The definitions were taken from www.afterdawn.com

Again hopes this helps everyone :top:

[Grindstone]

Just buy a TV that supports both 720p and 1080i, you'll get the best of both worlds (besides, all Xbox 360 will be in 720p, so you might as well).

I'm kinda surprised that citizen X would be asking this question...?

[Jacksmith28]

720p is still amazing, but if you have the $$$, but 1080i

[citizen X]

Thank guys,

I was guessing that the bigger the number the better, but I didn’t know what the (i) or the (p) meant in till know

If any one is quires and wants to know witch TV I’m interested in here’s the link (http://www.epinions.com/pr-Sony_FD_Trinitron_WEGA_KV_27HS420__Standard_Televi sions/display_~full_specs)




Tell me what u think of all the fetchers and if its worth the money

It looks like it supports all Broadcast Formats: 1080i (HDTV) • 720p (HDTV) • 480p (EDTV) • 480i (SDTV) except 1080p

[citizen X]

720p is still amazing, but if you have the $$$, but 1080i

the TV i'm looking at can do 1080i, and its's under !!!!$$$600.000!!!! :biggrin:

look and see link (http://www.epinions.com/pr-Sony_FD_Trinitron_WEGA_KV_27HS420__Standard_Televi sions/display_~full_specs)

[citizen X]

Just buy a TV that supports both 720p and 1080i, you'll get the best of both worlds (besides, all Xbox 360 will be in 720p, so you might as well).

I'm kinda surprised that citizen X would be asking this question...?

I don’t know much about HDTV but I assumed that 1080i was the better resolution without knowing what the (i) or (p) stood for. Plus console hardware and HDTV hardware are two very different things, even though they have something’s in conmen :top:

[Grindstone]

Well, that TV deosn't have the HDTV receiver built in, so you'll have to buy that function later on to get HD broadcasts for cable, but otherwise, that seems like a good deal on a Sony TV. Maybe you shouldn't pass this up...

[Cybergig1]

and remember if your wanting the "best" picture if you get an HDTV that is in the native resolution of the games (as they've announced 720p will be the minimum that should be the native resolution) you technically get a better picture as there is no conversion going on from the box to the tv. Example if you have a TV that supports 1080i but the TV's resolution is 1024X768 its going to downconvert it to fit. Same in the reverse it just upconverts. Its the reason why people swear by DVD's actually looking a little better on EDTV's rather than HDTV's because they are in the same resolution at 480p.

But yeah just get you a set that at least accepts 480p, 720p, and 1080i and your set bud :) I got my panasonic Plasma and couldn't be happier with the set I'm ready to hook a 360 up to it though!!

if you need a great place to read up on brands/suggestions go to www.avsforum.com there is a TON of resources there and all the members are very knowledgable and nice. They helped me with picking out my set

[bxgladiator]

That's a nice sony hdtv just might order it.

[Diamond]

Important Update: New Sony TV programming indicates it detects if you are running any MS equipment attatched to it. If check reads positive it signals SCE headquarters, which follows suit by launching missles at your location.

[keikdasneak]

To me 1080i looks better because of the higher resolution 1920x1200. I play all my PC games in 1080i on my big screen tv :) 4X antialising 16x antrofiltering

I have a 55" widescreen mitsubishi medalion
picture below of 1080i on my tv
http://www.we-todd-did-racing.com/wetoddimage.wtdr?i=wMTA2Nzc3MDZzNDEzZGZkMzF5NTQx

[Cybergig1]

haha thats hilarious Diamond :) course my Xbox and Sony Trinitron have lived in perfect harmony for years, only now I have a Panasonic Plasma for my 360 w00t!

Keikdasneak-I hear you man 1080i will always look better than 720p just slightly since you got way more pixels packed on the screen :) great for sports and whatnot

[MGDesigns]

as far as video games go, 720p is BY FAR the best resolution. You are going to want the progressive of the 720 for anything that has a lot of movement, like video games. 1080i is the preferred mode for TV dramas or comedies, anything that has a lot of movement will look drastically better in 720p.

[Diamond]

Ok so P has much less of the shadowing, ghosting etc problums or none at all compared to i? Can someone specifically clarify

[citizen X]

as far as video games go, 720p is BY FAR the best resolution. You are going to want the progressive of the 720 for anything that has a lot of movement, like video games. 1080i is the preferred mode for TV dramas or comedies, anything that has a lot of movement will look drastically better in 720p.
thanks thats what i wanted to know

[daniel.isaac.h]

Thank You Iron Orta! I've always wondered that.

[Agent Smith]

My stinkin Sony 51" Widescreen (it is 2-1/2 years old) accepts both 720p and 1080i signals and the TV does have a resolution of 1900x1080 but it only displays 1080i images in native form (source 1080i, output 1080i) for 720p it downconverts (I don't know how this will look) to 480p. I don't want to spend $2000 on another big TV so I hope most 360 titles do 1080i.

[prawnbob]

Agent Smith, don't worry about buying a new $2000 TV. The Xbox360 has a built in scaler that will scale it to 1080i for you. There's an interview on TeamXbox with Todd Holmdahl, a Microsoft VP, where he tells you about it. Here's the link: Interview with Todd Holmdahl (http://interviews.teamxbox.com/xbox/1190/Xbox-360-Interview-Todd-Holmdahl/p1/). Hope this helps.

[Cybergig1]

yeah but the best you can do is to have a TV in the native resolution of the games. As someone mentioned above when you have no conversion going on not only do you get a better picture but you also get smoother gameplay. Some TV's in fact when doing conversions create a few millisecond response lag from the time you hit a button on the controller till you see it on screen. Its no super noticable except in games that require extreme timing like fighting games. I'll have to read up on that scaler that was just mentioned. But again that sounds like something that could add a little lag. Hope not but either way I'm set I made sure my tv's best resolution would be with the 720p. I can do 1080i but to me 720p is just fine for gaming.

[POLIO v]

HD Question

I’m planning to buy a 27 in HDTV and I’m seeing all these number being thrown around, 1080i/720p/480p/480i.

Is 720p sharper then 1080i, because the HDTV I’m interested in, has a resolution of 1080i

Can some one put these resolution in order from ok to best?

I know for some of u this is a stupid question but I need to know

thanks :top:
i have a 30" samsung widescreen w/ built in tuner for 720p from best buy for under a grand and it runs all resolutions. see it at gamertagpics.com G.T. POLIO v.