Dreaded 1366x768

[Trix]

Hello everyone,

So, I realize this is a really a moot point, and in a way, the suggestion may be quite worthless in actuality, but, I have been bothered by it for a bit, and so figured I'd ask the smart people for a better explanation. If the topic was discussed years ago, I appologize, I haven't found anything by searching.

My suggestion comes from two premises;
1) "1080i" panels have a fixed progressive display of [usually] 1366x768;
2) The less video processing from source to display, the better.

Therefore, I was simply wondering why no manufacturers offer blu-ray players that offer a video output of 1366x768 through either component or HDMI, so that the only video processing is the player grabbing 480i DVD's or 1080i/1080p blu-ray discs and outputting a 1366x768 at 60 fps signal for immediate display by the television.

The only answer that has ever come to mind, other than arguing that TV processing from any input to 1366x768 isn't actually that bad, is the problem of overscan on displays, and how these displays would handle 1366x768 native material with and without overscan, where possible.

Again, this is a rather moot point, given that 1366x768 displays are becoming less and less produced, and also because it isn't a true problem per say. But, I was just wondering if I was overlooking anything in trying to figure out why this was never donw, computer format or not.

Speaking of computer format, I do realize that an HTPC can output blu-ray or DVD to a 1366x768 display at that resolution, so maybe overscan isn't as big a problem as I thought? Anyways, I look forward to everyone's responses. Thanks!

Trix

[ryoohki]

Originally Posted by Trix

Hello everyone,

So, I realize this is a really a moot point, and in a way, the suggestion may be quite worthless in actuality, but, I have been bothered by it for a bit, and so figured I'd ask the smart people for a better explanation. If the topic was discussed years ago, I appologize, I haven't found anything by searching.

My suggestion comes from two premises;
1) "1080i" panels have a fixed progressive display of [usually] 1366x768;
2) The less video processing from source to display, the better.

Therefore, I was simply wondering why no manufacturers offer blu-ray players that offer a video output of 1366x768 through either component or HDMI, so that the only video processing is the player grabbing 480i DVD's or 1080i/1080p blu-ray discs and outputting a 1366x768 at 60 fps signal for immediate display by the television.

The only answer that has ever come to mind, other than arguing that TV processing from any input to 1366x768 isn't actually that bad, is the problem of overscan on displays, and how these displays would handle 1366x768 native material with and without overscan, where possible.

Again, this is a rather moot point, given that 1366x768 displays are becoming less and less produced, and also because it isn't a true problem per say. But, I was just wondering if I was overlooking anything in trying to figure out why this was never donw, computer format or not.

Speaking of computer format, I do realize that an HTPC can output blu-ray or DVD to a 1366x768 display at that resolution, so maybe overscan isn't as big a problem as I thought? Anyways, I look forward to everyone's responses. Thanks!

Trix

Because 1366x768 is NOT a HDTV standart. HDTV is 720p, 1080i, 1080p.

The only reason they did 768p is because of an old priciple that said that computer only output resolution divisable by 8, witch 720p isn't. Even tought most of the video card on PC do output 720p now (1080 is divisable by 8). The closest divisable by 8 resolutin is 768p. I'am pretty sure that they've done this because LCD TV can be used as computer monitor and they wanted to be as compatible as possible. With 1080p is not a problem anymore..

The main problem with 1080i LCD is that if you feed them with 1080i, they rarely combine both field together to 1080p and then rescale to 768p. 99% of them take 1920x540 (the first field) and rescale to 768p so you are losing horizontal resolution in that process. The best way is to feed them 720p, at least you'll gain Hor. Resolution..

[Trix]

Originally Posted by ryoohki

Because 1366x768 is NOT a HDTV standart. HDTV is 720p, 1080i, 1080p.

The only reason they did 768p is because of an old priciple that said that computer only output resolution divisable by 8, witch 720p isn't. Even tought most of the video card on PC do output 720p now (1080 is divisable by 8). The closest divisable by 8 resolutin is 768p. I'am pretty sure that they've done this because LCD TV can be used as computer monitor and they wanted to be as compatible as possible. With 1080p is not a problem anymore..

The main problem with 1080i LCD is that if you feed them with 1080i, they rarely combine both field together to 1080p and then rescale to 768p. 99% of them take 1920x540 (the first field) and rescale to 768p so you are losing horizontal resolution in that process. The best way is to feed them 720p, at least you'll gain Hor. Resolution..

Thanks for the reply. Saying that 1366x768 is not an HDTV standard is true, but it seems meaningless that it is not a standard, since a significant proportion of consumer displays use it as their resolution. So, if it can be "adapted" to be and HDTV standard by manufacturers of displays, why can't these manufacturers, most of which also manufacture blu-ray players, also adapt it as an output for their players?

Whichever way they rescale their incoming feed, they are still rescaling, and doing post-processing. I am simply wondering if it would not be easier to have all processing done before output, and just have displays show what they receive.

[ryoohki]

Originally Posted by Trix

Thanks for the reply. Saying that 1366x768 is not an HDTV standard is true, but it seems meaningless that it is not a standard, since a significant proportion of consumer displays use it as their resolution. So, if it can be "adapted" to be and HDTV standard by manufacturers of displays, why can't these manufacturers, most of which also manufacture blu-ray players, also adapt it as an output for their players?

Whichever way they rescale their incoming feed, they are still rescaling, and doing post-processing. I am simply wondering if it would not be easier to have all processing done before output, and just have displays show what they receive.

IMho you should still feed it with 1280x720p. Unless the tv takes a 1080p signal and then you can check witch scales better. The Player (doing 1080p to 720p) or the TV (doing 1080p to 768p)

The goal here is no scaling at all. LCD don't like scaling. Just put you're computer monitor at any other resolution that it's native one and it's 'blurry'.

Like i said the only reason CE use that resolution is because of computers output. Otherwise they would all be 720p TV. But they wanted to offer VGA connectivity and it was a compromised to be done.

Also the aftermarket for 768p tv are big. They are using them in Malls, Restaurent etc. They are cheap and 100% compatible with a PC connection. Even the montreal subways you them as computer monitor to feed news and publicity...