What's up with strange resolutions?

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Project86

Golden Member
Nov 12, 2002
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http://www.costco.com/Browse/Product.as...rodid=11096578&whse=BC&topnav=&browse=

For example... there are several other similar sized plasmas on the Costco website with this same resolution. It just doesn't make sense to me. It's higher than EDtv, but does it qualify as true HD? Anyone have any experience with something like this?

I don't understand how it would fit either... I can run 1024X768 on my square crt and it works. But how can these run the same res but be 16:9?
 
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GhostDoggy

Senior member
Dec 9, 2005
208
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Originally posted by: mwmorph
probably typo. it;as usually 1280x768
Click to expand...

Its not a typo. The pixels are not square. This is how they are able to take a 4:3 (1.33) aspect resolution and display it as a 16:9 (1.78) aspect image. And it is how a lot of flat-panel manufacturers dupe consumers by calling them 'HDTV'.

Let's say you are watching CBS HDTV off the air. Its 1920x1080 (and interlaced). The display will deinterlace it to make a progressive 1920x1080 signal to feed to the display. Well, the horizontal resolution get's chopped down to 1024 (from 1920) and the vertical resolution get's chopped down to 768 (from 1080).

What is even more confusing is that some of these displays actually had 1024x1024 reolutions. For friendly consumer advice, always refer to a unit's native display resolution and compare it to the two common HDTV resolutions of 1920x1080 & 1280x720.
 
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AlucardX

Senior member
May 20, 2000
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"The display will deinterlace it to make a progressive 1920x1080 signal to feed to the display. "

i'm not sure that terminology is correct. it de-interlaces the image by showing the odd and then even lines of the image to make it appear seemless. it however its not a progressgive 1080p signal to the display. you need 1080p source material from this, which as of now can only be gotten from an HTPC. and obviously, a 1080p source material is no good if you don't have a 1080p capable display that can accept 1080p on the input. (some 1080p panels don't actually accept 1080p input.. buyer beware.)

you are correct about the pixels, however this only happens in plasma displays. the 1024x768 are rectangular pixels. It still is HD, and will still look good, but no matter what there will be some scaling of the original source material of 720p/1080i, there is no way around this.

in addition, this resolution works out fine for movies and HD tv, however won't work well for PC output like text and a desktop. The rectangular pixels skew the image.

and i've never seen a 1024x1024 display.. that just doens't make sense.
 
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GhostDoggy

Senior member
Dec 9, 2005
208
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Originally posted by: AlucardX
"The display will deinterlace it to make a progressive 1920x1080 signal to feed to the display. "

i'm not sure that terminology is correct. it de-interlaces the image by showing the odd and then even lines of the image to make it appear seemless. it however its not a progressgive 1080p signal to the display. you need 1080p source material from this, which as of now can only be gotten from an HTPC. and obviously, a 1080p source material is no good if you don't have a 1080p capable display that can accept 1080p on the input. (some 1080p panels don't actually accept 1080p input.. buyer beware.)

you are correct about the pixels, however this only happens in plasma displays. the 1024x768 are rectangular pixels. It still is HD, and will still look good, but no matter what there will be some scaling of the original source material of 720p/1080i, there is no way around this.

in addition, this resolution works out fine for movies and HD tv, however won't work well for PC output like text and a desktop. The rectangular pixels skew the image.

and i've never seen a 1024x1024 display.. that just doens't make sense.
Click to expand...

No, analog displays capable if displaying an interlaced signal first show the odd lines contained with one field, and then show the even lines contained in the other field. Both fields put together complete a frame. This has nothing to do with deinterlacing. Deinterlacing simply means to remove the interlaced condition.

Now, deinterlacing can be done in several different manners. A simple bob deinterlacing throws away either the even or odd fields, IIRC. But bob deinterlacing is the cheapest method requiring the lowest amount of processing capabilities.

BTW, the Westinghouse I mention (as an example) does accept a pure 1080P signal. This can be tested via a computer with a video card outputting 1080P. There is no way for a progressive display to introduce interlacing to make 1080i from a 1080P source signal. Of course, one could argue that its actually taking the 1080P source, throwing away half the frames, and then double-framing from 540P, but that's a lot to not just accept a 1080P signal straight considering no processing would be required.
 
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ArchAngel777

Diamond Member
Dec 24, 2000
5,223
61
91
Originally posted by: AlucardX
"The display will deinterlace it to make a progressive 1920x1080 signal to feed to the display. "

i'm not sure that terminology is correct. it de-interlaces the image by showing the odd and then even lines of the image to make it appear seemless. it however its not a progressgive 1080p signal to the display. you need 1080p source material from this, which as of now can only be gotten from an HTPC. and obviously, a 1080p source material is no good if you don't have a 1080p capable display that can accept 1080p on the input. (some 1080p panels don't actually accept 1080p input.. buyer beware.)

you are correct about the pixels, however this only happens in plasma displays. the 1024x768 are rectangular pixels. It still is HD, and will still look good, but no matter what there will be some scaling of the original source material of 720p/1080i, there is no way around this.

in addition, this resolution works out fine for movies and HD tv, however won't work well for PC output like text and a desktop. The rectangular pixels skew the image.

and i've never seen a 1024x1024 display.. that just doens't make sense.
Click to expand...

True... My Dad has a 42" Plasma that is 1024 X 768 and movies look incredable... So does HDTV content... He also uses it as a PC monitor and enjoys it... However, I noticed that 4:3 material is displayed as 16:9. It might bother me a bit, but it certainly does not bother him. He loves flying his flight sims and all that stuff...

1024 X 1024 does exist... Essentially, if the scaling processor is doing a great job, you could use a wide variety of pixels shapes. However, I think that the ideal is to have perfectly square pixels.

At first it didn't make sense why a Plasma display would not have used square pixels, but then I remember that their dot pitch and pixel placement measures are different than that of an LCD. So, it is possible that a 1024 X 768 Plasma display would look better than a 1280 X 768 having the same dimensions.

 
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VIAN

Diamond Member
Aug 22, 2003
6,575
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they use rectangular pixels. Just know that it won't be able to display true 1080i
 
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ArchAngel777

Diamond Member
Dec 24, 2000
5,223
61
91
Originally posted by: VIAN
they use rectangular pixels. Just know that it won't be able to display true 1080i
Click to expand...

Most plasmas can't display true HDTV, but that isn't a concern yet since there seems to be more of a push towards 720P than 1080i. I personally would take 720P over 1080i any day of the week.

Anyway, the jump from SDTV to 480P is amazing of itself, then going to 720P is even more amazing. I don't believe the jump from 720P to 1080i is that impressive and I think it looks worse. My opinion... If they ever get around to 1080P content, then it would be fine. But many TV's sold as HDTV can only handle 1080I, not P... So, go figure...

Regardless, everyone gets their panties in a bunch about HDTV and so on... This debate has been going on for over 4 years (since my first HDTV) and I suppose it will never end. Get a TV that looks good, if you buy for the future, you will only be dissapointed. Buy for today, the now and purchase a reasonable display.
 
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imported_ST

Senior member
Oct 10, 2004
733
0
0
Originally posted by: ArchAngel777
Originally posted by: VIAN
they use rectangular pixels. Just know that it won't be able to display true 1080i
Click to expand...

Most plasmas can't display true HDTV, but that isn't a concern yet since there seems to be more of a push towards 720P than 1080i. I personally would take 720P over 1080i any day of the week.

Anyway, the jump from SDTV to 480P is amazing of itself, then going to 720P is even more amazing. I don't believe the jump from 720P to 1080i is that impressive and I think it looks worse. My opinion... If they ever get around to 1080P content, then it would be fine. But many TV's sold as HDTV can only handle 1080I, not P... So, go figure...

Regardless, everyone gets their panties in a bunch about HDTV and so on... This debate has been going on for over 4 years (since my first HDTV) and I suppose it will never end. Get a TV that looks good, if you buy for the future, you will only be dissapointed. Buy for today, the now and purchase a reasonable display.
Click to expand...

With your father's set only capable of 1280x768 (as most present HDTV capable sets today), 720p would the sweet spot. But get yourself a true 1080p capable display (1920x1080 res) and you'll change your mind. With a proper deinterlacer (Genesis, etc.) there is a noticeable difference between 1080i vs. 720p.

I would also strongly disagree with you on just "getting a good set". Since this is a computer site, those who are thinking of utilizing these sets mostly want some usage of web-surfing or gaming or watching DVDs (e.g. HTPC usage). Having gone through several sets myself, there is a huge difference when utilizing lower resolution on these large displays (SDEs, pixel blotchiness, etc.). You should not just "settle" but instead do your appropriate research. 1080p is here now, at least for HTPC enthusiasts, and when the Blue Ray / HD-DVD wars boils down, will also be coming to the mainstream.

 
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MercenaryForHire

Lifer
Jan 31, 2002
40,819
2
0
What I want to know is why all the LCD TVs now insist on that asinine 1366x768 resolution. They had it right before with 1280x720 - the exact resolution of 720p HDTV - but noooo, they couldn't let sleeping dogs lie. They HAD to make one with a non/8 horizontal resolution. Jackasses. :|

/me grumbles something about PAL standards mucking up HDTV and goes off to look for older TVs

- M4H
 
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