View Full Version : 720p or 1080i?
fookaroo
08-20-2009, 03:02 PM
Looking for some feedback on which mode to use on my TV; i 37' LG LCD TV that supports 720p or 1080i. I was wondering which mode to set for my HD Cable box and PS3 to get the best results. Any feedback is more then welcome.
Thanks!
tokenuser
08-20-2009, 03:13 PM
How far away from the screen are you?
fookaroo
08-20-2009, 03:38 PM
I'd have to say our sofa is about 8-10 feet from the TV.
tokenuser
08-20-2009, 03:54 PM
I am going to say its not going to make a great deal of difference in your case.
If you watch a lot of sport, then 720p might be better for you (it tracks balls/pucks better).
For the PS3, 1080i is the way to go - but not significant given how far away from the screen you are in relation to the screen size.
I'd go 1080i, but you are on the cusp of where it could go eitherway so it might come down to personal preference. Try recording something in HD, then playing back over 720p vs 1080i. Which ever "feels" better is what you should go with. People forget that "best" is highly subjective when it comes to audio and video.
shike
08-21-2009, 08:53 AM
What's the native resolution of the screen?
Stick it there and don't muck with it. You're sitting far enough away that you probably won't notice a resolution increase, but last thing you want is degraded quality from internal scaling.
fookaroo
08-21-2009, 12:37 PM
What's the native resolution of the screen?
Stick it there and don't muck with it. You're sitting far enough away that you probably won't notice a resolution increase, but last thing you want is degraded quality from internal scaling.
These are the specs i found for my set:
Resolution 1366 x 768
Display Format 720p
Image Contrast Ratio 1600:1
Brightness (cd/m2) 500.0 cd/m2
Pixel Response Time 8.0 ms
Input Video Formats 1080i , 480i , 720p , 480p
Thanks for the tips.
tokenuser
08-21-2009, 12:44 PM
These are the specs i found for my set:
Resolution 1366 x 768
Display Format 720p
Image Contrast Ratio 1600:1
Brightness (cd/m2) 500.0 cd/m2
Pixel Response Time 8.0 ms
Input Video Formats 1080i , 480i , 720p , 480p
Thanks for the tips.Display format 720p. You've just answered your own question.
jken97
08-21-2009, 11:40 PM
These are the specs i found for my set:
Resolution 1366 x 768
Display Format 720p
Image Contrast Ratio 1600:1
Brightness (cd/m2) 500.0 cd/m2
Pixel Response Time 8.0 ms
Input Video Formats 1080i , 480i , 720p , 480p
Thanks for the tips.
I'm actually looking to buy a 720p set with very similar specs, but I'm worried about all those numbers that don't seem to match up (720p *should* be 1280x720 for 16:9 content, if my math is correct).
Are you happy with your set with your HD components? Does anything seem stretched to you? Mine will be hooked up to Blu-Ray, XBox360 and an AppleTV.
fookaroo
08-22-2009, 01:54 AM
HD looks great on it, no issues with my PS3 or my HD PVR. The set i have is the LG 37LC2D.
jken97
08-22-2009, 10:47 PM
HD looks great on it, no issues with my PS3 or my HD PVR. The set i have is the LG 37LC2D.
Thanks, always nice to hear a real-world OK.
shike
08-23-2009, 06:44 AM
I'm actually looking to buy a 720p set with very similar specs, but I'm worried about all those numbers that don't seem to match up (720p *should* be 1280x720 for 16:9 content, if my math is correct).
It's a rather common oddball resolution. It's capable of displaying 720P, but not nearly high enought to display 1080P. This is as long as you're talking about LCD . . . plasma requires that oddball resolution to display 720P for a different reason (pixel shape).
Some argue whether it's worth feeding 1080P to such a display. I'm in the school of thought that one should stick to the closest resolution so the internal scaler does the least amount of work to muck with the picture. The scaler still has to be used with these displays, but depending on the resolution the impact might be smaller.
jken97
08-23-2009, 05:11 PM
Some argue whether it's worth feeding 1080P to such a display. I'm in the school of thought that one should stick to the closest resolution so the internal scaler does the least amount of work to muck with the picture. The scaler still has to be used with these displays, but depending on the resolution the impact might be smaller.
Noted that it makes most sense to send a matching resolution to a 720p display... and yes, mine is plasma. I guess depending on where you sit and what your own eyes can perceive, the best picture comes after careful tinkering.
My 42" 480p plasma does look better when I feed it 720p or 480p, though looks expectedly fuzzy getting a 1080i signal. This could be simply due to how sub-par 480p is to begin with, I figure. Wonder if the same is true with a 720p plasma display getting a 1080i signal... but after considering it, what'd be the point other than DVD upscaling.
jken97
08-23-2009, 05:14 PM
It's a rather common oddball resolution. It's capable of displaying 720P, but not nearly high enought to display 1080P. This is as long as you're talking about LCD . . . plasma requires that oddball resolution to display 720P for a different reason (pixel shape).
That's what I figured, pixel shape. My plasma does have those tall rectangle pixels... all these numbers, all these differences. Guess it wouldn't require so much thought if these sets were cheaper ;)