Question about Progressive Displays
10-15-00, 03:26 PM
#1
DVD Talk Limited Edition
Thread Starter
Join Date: Apr 2000
Location: Earth
Posts: 5,863
Likes: 0
Received 0 Likes
on
0 Posts
Hi,
My friend and I were curious about something. He thinks that in order for a television to display progressive signal it has to be 16x9 or atleast be a 4:3 set with an anamorphic squeeze. I know to display progressive signals you must connect via component video inputs that are capable of displaying a progressive image but I could swear that since it doesn't have to deal wth resolution but rather how that image is displayed(interlaced or progressive) any 4:3 set could display a progressive image if it supported it. So essentially, my question is, can a 4:3 set display progressively if it doesn't have an anamorphic squeeze? Also, could a 4:3 set that is not HDTV ready be connected to a High def source and downconvert it to a standard interlaced resolution? Just curious if that new 20" wega i may get will be useless in a few years.
------------------
Dave My DVDs(Not updated anymore since DVD Tracker uncooly started charging). My Humble Home Theatre
My friend and I were curious about something. He thinks that in order for a television to display progressive signal it has to be 16x9 or atleast be a 4:3 set with an anamorphic squeeze. I know to display progressive signals you must connect via component video inputs that are capable of displaying a progressive image but I could swear that since it doesn't have to deal wth resolution but rather how that image is displayed(interlaced or progressive) any 4:3 set could display a progressive image if it supported it. So essentially, my question is, can a 4:3 set display progressively if it doesn't have an anamorphic squeeze? Also, could a 4:3 set that is not HDTV ready be connected to a High def source and downconvert it to a standard interlaced resolution? Just curious if that new 20" wega i may get will be useless in a few years.
------------------
Dave My DVDs(Not updated anymore since DVD Tracker uncooly started charging). My Humble Home Theatre
10-15-00, 04:32 PM
#2
Member
Join Date: Jun 2000
Posts: 221
Likes: 0
Received 0 Likes
on
0 Posts
In progressive scan, a 4:3 TV that is "HDTV ready" or has the ability to output 480p, will have to be windowboxed/letterboxed to show the Progressive image. Progressive Scan is only via. Component because Svideo does not have the bandwidth to pass that much information.
All 4:3 TVs that support Progressive Scan (480p), do anamoprhic squeeze, to get the 16:9 picture into the screen. But even regular sources that are in 4:3 can be in progressive scan, the lines will be doubled by an internal line doubler. DVDs that are in 4:3 can be progressive scanned in the DVD player..
HDTV recievers can downconvert a HDTV signal to 480p for compatible tvs, or 480i NTSC for regular TVs. But they both will look better than the NTSC now.
All 4:3 TVs that support Progressive Scan (480p), do anamoprhic squeeze, to get the 16:9 picture into the screen. But even regular sources that are in 4:3 can be in progressive scan, the lines will be doubled by an internal line doubler. DVDs that are in 4:3 can be progressive scanned in the DVD player..
HDTV recievers can downconvert a HDTV signal to 480p for compatible tvs, or 480i NTSC for regular TVs. But they both will look better than the NTSC now.
