Resolution Question

Sammy7777 · 08-08-2006, 07:25 PM

Can anyone explain to me the relationship between a LCD's native resolution and picture quality?

My Sony 32" LCD was a native resolution of 1366 x 768. I see some of the newer LCD HDTV's have a native resolution of 1920 x 1080.

The HD signal is 720 progressive and 1080 interlaced, as I understand it. So the information coming into the HDTV is the same, what ever its resolution. How does the increased resolution capability of these new LCD's enhance picture quality, or does it just allow a bigger screen?

Sorry if this seems like a dumb question, but I don't fully understand this.

Thanks in advance for any input

.

**rbinck** · 08-08-2006, 08:14 PM

On your set when it gets a 1920x1080i/30 signal it has to down scale it to 1366x768 whereas when a 1920x1080 set gets the same signal it will display it at full size, thus more detail.

Agent_Orange · 08-08-2006, 08:52 PM

what i would like to know is if a true 1080p tv gets as good or better picture quality than a true 720p tv, when upscaling a 720p signal.

ps: say both tv's are 42" - 46"

Nevada_MO_Guy · 08-08-2006, 11:35 PM

Quote:

Originally Posted by Agent_Orange

what i would like to know is if a true 1080p tv gets as good or better picture quality than a true 720p tv, when upscaling a 720p signal.

ps: say both tv's are 42" - 46"

Welcome to HDF

I far as I know there isn't a television made with a native resolution to take advantage of a 720p signal.

The signal would be 1280 x 720. So the signal would have to be adjusted to fit the available pixels of the tv.

A common resolution is 1366 x 768. The 720 signal (1280x720) will be changed to fit this resolution.

Likewise a television with a native resolution of 1920 x 1080 will physically have more pixels to handle whatever signal it is given.

talion83 · 08-09-2006, 01:24 AM

in theory, yes the TV with the higher resolution should have a better video quality. the end result really comes down to the quality of a video scaler. It is the reason that you can buy an upconvert sony DVD player for $120, or an upconvert Pioneer Elite or Denon for around $500. The difference is the video scaler.

but, from what i've seen, the majority of higher resolution TV's tend to have a better PQ, even on the same source. It won't be night and day, but it will be a bit better. Honestly, the place where I think i've seen the most improvement on a 1080p over a 720p, has been SD, though if you look a lot of places it will say the other way around...again it comes down to video scaling.

If the price difference doesn't hurt you that much, i would personally say go with 1080p. if you are debating the price difference, or aren't a big TV/movie watcher (or don't necessarily have to have the "best") go with the 720 and save some money. but that is just my opinion
(oh if there is a Best Buy with Magnolia near you, check them out...chances are they will have the 1080p and 720p Elite Plasma's side by side...on the DTV feed, they look almost the same. but if you throw in a blueray dvd player...)

**rbinck** · 08-09-2006, 06:08 PM

Quote:

Originally Posted by Agent_Orange

what i would like to know is if a true 1080p tv gets as good or better picture quality than a true 720p tv, when upscaling a 720p signal.

ps: say both tv's are 42" - 46"

Depends on the scaler of the two sets. Remember there are fewer sources for 720p video, so you also have to ask the reverse. Does the 768p set scale the 1080i video, that I'm going to be watching more often, better than a 1080p set?

Sammy7777 · 08-09-2006, 06:41 PM

Thanks for the help, everyone.

Agent_Orange · 08-10-2006, 08:57 AM

sorry to jump in this thread.

thanks for the answers though.

cheers

08-08-2006, 07:25 PM	#1
Sammy7777 My plasma is High Def. Join Date: Aug 2006 Posts: 6	Resolution Question Can anyone explain to me the relationship between a LCD's native resolution and picture quality? My Sony 32" LCD was a native resolution of 1366 x 768. I see some of the newer LCD HDTV's have a native resolution of 1920 x 1080. The HD signal is 720 progressive and 1080 interlaced, as I understand it. So the information coming into the HDTV is the same, what ever its resolution. How does the increased resolution capability of these new LCD's enhance picture quality, or does it just allow a bigger screen? Sorry if this seems like a dumb question, but I don't fully understand this. Thanks in advance for any input .

08-08-2006, 08:14 PM	#2
rbinck Administrator Join Date: Apr 2004 Location: Katy, Texas Posts: 12,337	On your set when it gets a 1920x1080i/30 signal it has to down scale it to 1366x768 whereas when a 1920x1080 set gets the same signal it will display it at full size, thus more detail. __________________ www.highdefinitionblog.com www.BlogOfHawaii.com

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08-08-2006, 08:52 PM	#3
Agent_Orange What is HD? Join Date: Aug 2006 Posts: 2	what i would like to know is if a true 1080p tv gets as good or better picture quality than a true 720p tv, when upscaling a 720p signal. ps: say both tv's are 42" - 46"

08-09-2006, 01:24 AM	#5
talion83 High Definition is the definition of life. Join Date: May 2005 Posts: 115	in theory, yes the TV with the higher resolution should have a better video quality. the end result really comes down to the quality of a video scaler. It is the reason that you can buy an upconvert sony DVD player for $120, or an upconvert Pioneer Elite or Denon for around $500. The difference is the video scaler. but, from what i've seen, the majority of higher resolution TV's tend to have a better PQ, even on the same source. It won't be night and day, but it will be a bit better. Honestly, the place where I think i've seen the most improvement on a 1080p over a 720p, has been SD, though if you look a lot of places it will say the other way around...again it comes down to video scaling. If the price difference doesn't hurt you that much, i would personally say go with 1080p. if you are debating the price difference, or aren't a big TV/movie watcher (or don't necessarily have to have the "best") go with the 720 and save some money. but that is just my opinion (oh if there is a Best Buy with Magnolia near you, check them out...chances are they will have the 1080p and 720p Elite Plasma's side by side...on the DTV feed, they look almost the same. but if you throw in a blueray dvd player...)

08-09-2006, 06:41 PM	#7
Sammy7777 My plasma is High Def. Join Date: Aug 2006 Posts: 6	Thanks for the help, everyone.

08-10-2006, 08:57 AM	#8
Agent_Orange What is HD? Join Date: Aug 2006 Posts: 2	sorry to jump in this thread. thanks for the answers though. cheers