720p or 1080i??? - Blu-ray Forum

Greenleaf1 · 01-08-2008, 11:05 PM

I have a 26" Sharp LCD HDTV, which is 720p/1080i, and I'm wondering if anyone has an opinion on which looks better.

The friend of mine who sold me the TV said that he thought 720p looked better on this size TV, and I'm wondering if anyone else has an opinion.

bootman · 01-08-2008, 11:12 PM

The question comes down to what is the native resolution of your set.
Most likely its 720p and it can take a 1080i signal but down converts it to 720p anyway.

It is always best to feed a set its native signal so that the original signal gets touched the fewest amount of times for best PQ.

TheChad · 01-08-2008, 11:35 PM

Quote:

Originally Posted by bootman

The question comes down to what is the native resolution of your set.
Most likely its 720p and it can take a 1080i signal but down converts it to 720p anyway.

It is always best to feed a set its native signal so that the original signal gets touched the fewest amount of times for best PQ.

Soo all TV's that are 1080i, down conver to 720P???

That doesn't make much since? If it's a 1080i TV, but it downconverts to 720p, than its not really an HDTV, its an EDTV.

-TheChad

Banjo · 01-08-2008, 11:37 PM

The HDTV in my bedroom is 768p, so I have it set on 1080i because if I set it to 720p, it will be upconverted to 768p, the difference was noticeable, so I set it to 1080i.

Banjo · 01-08-2008, 11:38 PM

Quote:

Originally Posted by TheChad

Soo all TV's that are 1080i, down conver to 720P???

That doesn't make much since? If it's a 1080i TV, but it downconverts to 720p, than its not really an HDTV, its an EDTV.

-TheChad

480p is EDTV, 720p and 1080i are HDTV. 1080p is Full HDTV.

rodgerse · 01-08-2008, 11:50 PM

isn't this a frivolous question?.if the tv itself is only 720p, isn't having native 720p better, instead of deinterlacing be better?.

Maybe better thing is like wether deinterlaced 1080i, or up-scaled 720p looks best on a 1080p set.

JTStarkiller · 01-09-2008, 12:02 AM

I prefer 720p. When I set my PS3 to 1080i, I notice this little ghost effect every time I move around in the XMB. It could just be me though.

bootman · 01-09-2008, 12:12 AM

Quote:

Originally Posted by TheChad

Soo all TV's that are 1080i, down conver to 720P???

That doesn't make much since? If it's a 1080i TV, but it downconverts to 720p, than its not really an HDTV, its an EDTV.

-TheChad

No, I said it comes down to the set's native resolution.
This is usually 480p, 768p (720p for all intensive purposes), 1080i or 1080p.
The point is that if you try and match the set's native resolution, the signal gets "touched" one less time. (the set doesn't need to convert it to its native resolution.)

Todd · 01-09-2008, 12:33 AM

Quote:

Originally Posted by TheChad

Soo all TV's that are 1080i, down conver to 720P???

That doesn't make much since? If it's a 1080i TV, but it downconverts to 720p, than its not really an HDTV, its an EDTV.

-TheChad

T.V.'s have a native resolution, if your set has a native resolution of 720p the set will upconvert any signal less than 720p to match the displays native resolution, this must be done or when you watch sd T.V. 480i to 540i you would see an image centered on the display surrounded by black on all sides. With regards to feeding 1080i or 1080p to a 720p set it must be downconverted before displaying or you wouldn't see the whole picture, instead it would be as though you had zoomed in on the center of display with binoculars and couldn't see but the center. As for 768p displays it is best to feed it 720p because it isn't upconverted to768p but instead you get small black bars at the top and bottom of the screen, or the display maker can mildly overscan the images to be displayed. 720p and 1080i are both hd resolutions. If your T.V.was 1080p then all non 1080p signals would be upconverted prior to displaying. hope this helped you understand hdtv a bit more.

Todd · 01-09-2008, 12:53 AM

Quote:

Originally Posted by Banjo

The HDTV in my bedroom is 768p, so I have it set on 1080i because if I set it to 720p, it will be upconverted to 768p, the difference was noticeable, so I set it to 1080i.

Try setting to 720p then calibrate display with digital video essentials, or any other good display calibration software. please turn off the sharpness, if you have a color temperature setting put it to D6500, warm then make any adjustments to contrast, black level, color, tint.

synsteranarchy · 01-09-2008, 04:21 AM

I have an older TV a Zenith HDTV and its 480p/1080i and I wanna get a blu ray player....is it worth getting on this kind of TV? Thanks

PLASMA-1080P-FULLHD · 01-09-2008, 04:31 AM

Quote:

Originally Posted by synsteranarchy

I have an older TV a Zenith HDTV and its 480p/1080i and I wanna get a blu ray player....is it worth getting on this kind of TV? Thanks

Yes u still can see the difference via componet cable (I assume ur TV dose not have HDMI) Should be fine for blu-ray but not for gaming tho

JadedRaverLA · 01-09-2008, 04:32 AM

Quote:

Originally Posted by Banjo

The HDTV in my bedroom is 768p, so I have it set on 1080i because if I set it to 720p, it will be upconverted to 768p, the difference was noticeable, so I set it to 1080i.

Yeah, that is one of the most annoying things about LCDs. All the "720p" sets that are actually 768p. Which looks better often depends on the source. HDTV and Blu-ray may actually look better at 1080i, depending on how your set scales and deinterlaces.

Quote:

Originally Posted by JTStarkiller

I prefer 720p. When I set my PS3 to 1080i, I notice this little ghost effect every time I move around in the XMB. It could just be me though.

That's the other side of the equation. It's usually better to have a game system or PC output set to a progressive signal as opposed to an interlaced one (unless your TV does nearly flawless deinterlacing).

Quote:

Originally Posted by synsteranarchy

I have an older TV a Zenith HDTV and its 480p/1080i and I wanna get a blu ray player....is it worth getting on this kind of TV? Thanks

It may be. It really depends on the set. Most of what we've been talking about is applicable to the newer LCD, plasma, and micro-display sets. The older CRT sets (which is what I'm fairly sure you have if it only accepts 480p/1080i) operate quite a bit differently. They don't have set "pixels" in the same way the other technologies do, so everything doesn't get automatically scaled to some magical "native resolution."

The big question on a set like that is what deinterlacing method does it use, as many 1080i-only sets "bob" the signal they get, essentially making them 540p sets. This isn't the end of the world, though. Do you have an HDTV tuner on that set? If so, then you can use that as a guide as to what the quality will be like. Blu-ray will look better than whatever HDTV signal you're getting, so if HDTV looks great, then you're good to go. If you really can't see the difference between HDTV and DVD on that set, then the set may not be able to show off enough of the advantage of HD to really make Blu-ray shine.

Hope that helps.

Mericalis · 01-09-2008, 04:36 AM

I have a 42" Philips 1080i set in one room in my home that I have a Philips BDP9000 hooked up to. I have tried both 720p and 1080i with my Blu-rays on this set and the 1080i has always looked better. But I have seen some screens that look better with the 720p in friend's homes. So, like people have said, it depends on the TV set and the person viewing it.

amayzin54 · 01-09-2008, 04:52 AM

i know you guys will think im crazy but i cant tell the difference between
1080i and 1080p it looks the same

PLASMA-1080P-FULLHD · 01-09-2008, 04:59 AM

Quote:

Originally Posted by amayzin54

i know you guys will think im crazy but i cant tell the difference between
1080i and 1080p it looks the same

Mericalis · 01-09-2008, 05:02 AM

Quote:

Originally Posted by amayzin54

i know you guys will think im crazy but i cant tell the difference between
1080i and 1080p it looks the same

I have a friend who has a little black leather couch...I can make an appointment for you. When are you free?

JadedRaverLA · 01-09-2008, 05:57 AM

Quote:

Originally Posted by amayzin54

i know you guys will think im crazy but i cant tell the difference between
1080i and 1080p it looks the same

Then, presumably, your TV has a great deinterlacer in it and (for all intents and purposes), it nearly IS the same.

mugen302005 · 01-09-2008, 06:33 AM

I guess the perspective being discussed is influenced by distance. At a given far away distace from the viewer, both a 1080i and 1080p look alike. So if your are sitting further awya that a given distance for a screen size you migh not notice much difference. It doesn't mean there isn't one.

Is anyone and expert calibrating tvs? it would be great to have sort of a guru of lcd display setting. I have bought a new lcd philips and I'd love to have some help as to properly calibrate the tv. There was someone who would give me the settings for a sony lcd 40 s2000 but I went for a philips one so I missed that tip. That's why I'm looking for some of your help.

Marcusarilius · 01-09-2008, 06:43 AM

Apparently the FVD Video player supports this straight across with no PQ loss per the players capabilities.

01-08-2008, 11:05 PM	#1
Greenleaf1 Member Member since:Jan 2008 4K collection:192 Blu-ray collection:1019 DVD collection:295 Trading Score:4	720p or 1080i??? I have a 26" Sharp LCD HDTV, which is 720p/1080i, and I'm wondering if anyone has an opinion on which looks better. The friend of mine who sold me the TV said that he thought 720p looked better on this size TV, and I'm wondering if anyone else has an opinion.

01-09-2008, 04:21 AM	#11
synsteranarchy New Member Member since:Jan 2008	quick question I have an older TV a Zenith HDTV and its 480p/1080i and I wanna get a blu ray player....is it worth getting on this kind of TV? Thanks

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01-08-2008, 11:12 PM	#2
bootman Special Member Member since:Sep 2007 Location:The Burghs	The question comes down to what is the native resolution of your set. Most likely its 720p and it can take a 1080i signal but down converts it to 720p anyway. It is always best to feed a set its native signal so that the original signal gets touched the fewest amount of times for best PQ.

01-08-2008, 11:37 PM	#4
Banjo Blu-ray Guru Member since:Dec 2006 Location:Ontario, Canada Blu-ray collection:143	The HDTV in my bedroom is 768p, so I have it set on 1080i because if I set it to 720p, it will be upconverted to 768p, the difference was noticeable, so I set it to 1080i.

01-08-2008, 11:50 PM	#6
rodgerse Active Member Member since:Oct 2007	isn't this a frivolous question?.if the tv itself is only 720p, isn't having native 720p better, instead of deinterlacing be better?. Maybe better thing is like wether deinterlaced 1080i, or up-scaled 720p looks best on a 1080p set.

01-09-2008, 12:02 AM	#7
JTStarkiller Power Member Member since:Aug 2007 Location:Austin, TX DVD collection:69 Trading Score:17	I prefer 720p. When I set my PS3 to 1080i, I notice this little ghost effect every time I move around in the XMB. It could just be me though.

01-09-2008, 04:36 AM	#14
Mericalis Expert Member Member since:Aug 2007 Location:Texas Blu-ray collection:232 DVD collection:6 Blu-ray reviews:5	I have a 42" Philips 1080i set in one room in my home that I have a Philips BDP9000 hooked up to. I have tried both 720p and 1080i with my Blu-rays on this set and the 1080i has always looked better. But I have seen some screens that look better with the 720p in friend's homes. So, like people have said, it depends on the TV set and the person viewing it.

01-09-2008, 04:52 AM	#15
amayzin54 Member Member since:Dec 2007 Location:chi-town	i know you guys will think im crazy but i cant tell the difference between 1080i and 1080p it looks the same

01-09-2008, 06:33 AM	#19
mugen302005 Active Member Member since:Jul 2007 Blu-ray collection:21 Blu-ray reviews:11	I guess the perspective being discussed is influenced by distance. At a given far away distace from the viewer, both a 1080i and 1080p look alike. So if your are sitting further awya that a given distance for a screen size you migh not notice much difference. It doesn't mean there isn't one. Is anyone and expert calibrating tvs? it would be great to have sort of a guru of lcd display setting. I have bought a new lcd philips and I'd love to have some help as to properly calibrate the tv. There was someone who would give me the settings for a sony lcd 40 s2000 but I went for a philips one so I missed that tip. That's why I'm looking for some of your help.

01-09-2008, 06:43 AM	#20
Marcusarilius Blu-ray Ninja Member since:Aug 2007 Location:Seattle, WA. Blu-ray reviews:52 Trading Score:1	Apparently the FVD Video player supports this straight across with no PQ loss per the players capabilities.

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