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HDTV as computer monitor: feasiblity?



 
 
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  #13  
Old August 28th 04, 05:23 AM
J. Clarke
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First of One wrote:

Keep in mind the resolution of HDTV may not be sufficient. From what I
remember reading about HDTVs, there are the 1080i (interlaced) and 720p
(progressive) standards, both with 16:9 aspect ratio, so a HDTV only has
the equivalent of 1280x720 max resolution.


I beg to disagree. If the set supports 1080i then its resolution is
1920x1080.

Projecting this onto a 36"
display could look ugly when you need to read text.


Actually 1280x720 works fine for text on my 8 foot screen.


--
--John
Reply to jclarke at ae tee tee global dot net
(was jclarke at eye bee em dot net)
  #14  
Old August 28th 04, 01:40 PM
Todd
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Moreover, the HDTV spec also allows for 1080 p (progressive scan) to be implemented
whenever feasable. Now that will be a TV set!
--
Todd


  #16  
Old August 28th 04, 03:23 PM
First of One
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"J. Clarke" wrote in message
...
Keep in mind the resolution of HDTV may not be sufficient. From what I
remember reading about HDTVs, there are the 1080i (interlaced) and 720p
(progressive) standards, both with 16:9 aspect ratio, so a HDTV only has
the equivalent of 1280x720 max resolution.


I beg to disagree. If the set supports 1080i then its resolution is
1920x1080.


Yes, but that's 1920x1080 interlaced. If you feed a progressive-scan signal
to it, will it "downsample" and output an interlaced picture?

Though in the case of LCD TVs, I guess refresh rate is a bit of a moot
point.

Projecting this onto a 36"
display could look ugly when you need to read text.


Actually 1280x720 works fine for text on my 8 foot screen.


Any idea what the dot pitch is for your 8 foot screen (or is this a
projector)?

--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."


  #17  
Old August 28th 04, 07:18 PM
J. Clarke
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First of One wrote:

"J. Clarke" wrote in message
...
Keep in mind the resolution of HDTV may not be sufficient. From what I
remember reading about HDTVs, there are the 1080i (interlaced) and 720p
(progressive) standards, both with 16:9 aspect ratio, so a HDTV only
has the equivalent of 1280x720 max resolution.


I beg to disagree. If the set supports 1080i then its resolution is
1920x1080.


Yes, but that's 1920x1080 interlaced. If you feed a progressive-scan
signal to it, will it "downsample" and output an interlaced picture?


There's no "sampling" involved, it just takes two passes to display the
image.

Though in the case of LCD TVs, I guess refresh rate is a bit of a moot
point.

Projecting this onto a 36"
display could look ugly when you need to read text.


Actually 1280x720 works fine for text on my 8 foot screen.


Any idea what the dot pitch is for your 8 foot screen (or is this a
projector)?


What's 8 divided by the square root of the sum of the squares of 1280 and
720? About .005 inch or .13mm. But it doesn't have a "dot pitch" per se,
which applies only to CRTs, it's an LCD-based display so it has a 1:1
correspondence between physical and logical pixels unless I turn on
scaling.

--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."


--
--John
Reply to jclarke at ae tee tee global dot net
(was jclarke at eye bee em dot net)
  #19  
Old August 28th 04, 09:19 PM
maggot
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On Sat, 28 Aug 2004 00:21:40 -0400, "J. Clarke"
wrote:


And you can't record and you're limited to one channel and you can't recieve
HDTV.


You watch more than one channel at a time? And why can't it recieve
HDTV? It does 16:9 ratio and 4:3.

I have never understood why some people consider having their computer
turned on to be a hardship. Personally I seldom turn mine off.


Noise.
  #20  
Old August 28th 04, 09:59 PM
J. Clarke
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maggot wrote:

On Sat, 28 Aug 2004 00:21:40 -0400, "J. Clarke"
wrote:


And you can't record and you're limited to one channel and you can't
recieve HDTV.


You watch more than one channel at a time? And why can't it recieve
HDTV? It does 16:9 ratio and 4:3.

I have never understood why some people consider having their computer
turned on to be a hardship. Personally I seldom turn mine off.


Noise.


Then rig it for silent running.

--
--John
Reply to jclarke at ae tee tee global dot net
(was jclarke at eye bee em dot net)
 




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