Re: LCD TV as Monitor?



On Sun, 17 Jul 2005 00:27:39 +0100, Conor <conor.turton@xxxxxxxxx>
wrote:

>In article <p6cid1d338ke5p9pa4rvgutidrn8qjd22m@xxxxxxx>, Fisher says...
>> On Wed, 13 Jul 2005 19:04:54 +0100, Conor <conor.turton@xxxxxxxxx>
>> wrote:
>>
>> >TV broadcasts for NTSC for example are at 720x480.
>>
>> NTSC is no where near that resolution. I don't know the exact figures
>> but I know it's not 720x480. PAL is not even that high and PAL is
>> broadcast at a higher res than NTSC.
>>
>Its what I found on Google.

That's for DVD. TV broadcast in North America is low res until we all
have HDTV. I believe the UK has the highest broadcast TV res in the
world.

http://www.videohelp.com/forum/userguides/94382.php
720 X 576 (480 NTSC). Used by most DVD.

http://members.aol.com/ajaynejr/vidres.htm

http://members.aol.com/ajaynejr/vidcolor.htm

NTSC Broadcasts (composite) ? 120 lines best, 40 - 48 lines typical
for reddish orange and greenish blue; 40 - 48 lines for most other
color transitions.

http://nemesis.lonestar.org/reference/internet/web/color/ntsc_primer.html

The number of lines of horizontal resolution in NTSC broadcast video
is about 333 lines across the screen. Think of being able to display a
maximum of 166.5 pairs of alternating black and white stripes, drawn
vertically on the screen. That's the horizontal luminance resolution,
so it only covers the resolution of the black and white detail of the
image. Many television makers neglect to mention the "luminance" word
when giving their specifications, and incorrectly describe their lines
of resolution specification value as covering everything. It does not.


.



Relevant Pages

  • Re: LCD TV as Monitor?
    ... PAL is not even that high and PAL is broadcast at a higher res than NTSC. ... The number of lines of horizontal resolution in NTSC broadcast video ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: LCD TV as Monitor?
    ... PAL is not even that high and PAL is broadcast at a higher res than NTSC. ... Color information is quadrature modulated on a 3.58 MHz subcarrier that's placed inside the monochrome signal and the strange frequencies, such as 60Hz vertical not being 60Hz but rather 59.94, was done so that the color subcarrier information looks like perpetually shifting 'random noise' in the B&W picture and, as a result, it becomes 'invisible' to the eye because it doesn't persist in any location long enough for the eye to notice it. ... saying 640x480 resolution is wholly inappropriate when talking about a COLOR picture. ... Not much in the way of the tuner because it's got to decode that lousy broadcast NTSC signal. ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: High Quality TV Card for my laptop
    ... For NTSC (our current broadcast TV system), the maximum resolution that you can get from a composite off-the-air broadcast signal is about 320 to 350 lines horizontally by 480 lines vertically. ... A USB 1.x interface can't do it (there are such products and they work, but their quality suffers from the limited bandwidth of USB 1.x, and the loss is significant and noticeable). ...
    (comp.sys.laptops)
  • Re: LCD TV as Monitor?
    ... >>> NTSC is no where near that resolution. ... TV broadcast in North America is low res until we all ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: Id like to make a dvd to send to england
    ... frame rate is what makes the two choices nearly equal. ... flickering) is advantage NTSC, while the spacial resolution ... show her a movie I made. ...
    (microsoft.public.windowsxp.moviemaker)