Resolutions...why call it 720p when the res. is 1366x768 ?

[snadge]

Ive noticed in studying HD and digital TV/DVD etc that they call 1080i or 1080p because the resolution is
1920x(1080)... hence 1080p (or 1080i)
well why do they call the smaller size 720p or 720i when the actual resolution of LCD screens that
support this size are 1366x768...? shoudn't it be 768p or 768i..?
this has been really bugging me...Im almost certain my 32" HD LCD TV is 1366x768 but ive been told its 720p...

[TBoneit]

MY 32" supports 720P or 1080i or SD. The LCD panel resolution is 1366 by 768. The Resolution of the panel itelf has no direct connection to the standards it supports.

The TV converts all the different supported Resolutions to what the LCD panel needs. The LCD panel is called the Native resolution.

Ever buy a 19" LCD for the computer and notice it supports more than one resolution?

Same thing.

[edDV]

Ive noticed in studying HD and digital TV/DVD etc that they call 1080i or 1080p because the resolution is
1920x(1080)... hence 1080p (or 1080i)
well why do they call the smaller size 720p or 720i when the actual resolution of LCD screens that
support this size are 1366x768...? shoudn't it be 768p or 768i..?
this has been really bugging me...Im almost certain my 32" HD LCD TV is 1366x768 but ive been told its 720p...

It even gets worst than that when many "720p" plasmas or projectors are native 1024x768 or other native resolution.

At least the mid-resolution LCD displays are settling into 1366x768 for the most part as the new panel plants come online. All HDTV sets have built in scalers to adjust input resolution to native resolution. There is an added complication that most will overscan about 5% (~1440x800) and display the center 1366x768 over HDMI or analog component inputs. Most VGA "computer/game" inputs do not overscan so a 1366x768 display card input will fill the screen.

[snadge]

I see...
I had problems connecting a laptop via S-Video..it too seemed to overscan a lot and would scroll the screen up/down/left/right when my cursor would reach the end...the ATi Radeon Xpress 1100 Graphics adapter didnt have a 1366x768 resolution..it had 1024x768 which fitted fine but you could see it wasnt the true resolution to the LCD TV icons seemed stretched..also the quality was poor to me.. nothing like using a normal LCD monitor...infact worse than CRT monitor...
I would like to get my laptop hooked up but it only has VGA and S-Video out and the 32" HDTV doesnt have VGA in but has S-Video and HDMI....

[edDV]

I see...
I had problems connecting a laptop via S-Video..it too seemed to overscan a lot and would scroll the screen up/down/left/right when my cursor would reach the end...the ATi Radeon Xpress 1100 Graphics adapter didnt have a 1366x768 resolution..it had 1024x768 which fitted fine but you could see it wasnt the true resolution to the LCD TV icons seemed stretched..also the quality was poor to me.. nothing like using a normal LCD monitor...infact worse than CRT monitor...
I would like to get my laptop hooked up but it only has VGA and S-Video out and the 32" HDTV doesnt have VGA in but has S-Video and HDMI....

Too bad the TV lacks VGA. In most cases a Catalyst update will get you 1366x768 over VGA if the chipset/memory are adequate.

The S-Video port will never reach more than about 700x576 resolution. Catalyst will usually offer to scale the desktop to 640x480, 800x600 or 1024x768 but then analog scan at NTSC or PAL bandwidth and scan lines. If you select 800x600 for your desktop and S-Video out settings, the S-Video out will be the same as the desktop but with some TV generated overscan. If you select 800x600 for your S-Video out scaling but your desktop is still set for 1280x1024, the S-Video will be a 800x600 port hole into your 1280x1024 desktop.