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TWRoO on 14 August 2012
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SvennoJ said:
TWRoO said:

Well my bedroom TV is a 19" 720p at 16:9, and is about 7ft away (little annoyed I am having to do things in feet and inches for this, but nm) which works out at 94.3 ppd.
However no signal being sent to it has ever had higher than the DVD/Wii's 480p.

Not sure on your calculations in the OP svennoJ... you claim the calculation is: Horizontal resolution x 0.2 x dist / diag

But then your examples indicate you used 0.02 instead of 0.2

Or for some popular resolutions:
1280x720  = dist x 25.62 / diag
1366x768  = dist x 27.36 / diag
1920x1080 = dist x 38.45 / diag

Ah, hang on, the distance is probably supposed to be in the same measurment as the diagonal (my mistake) and the 0.2 was a mistake and meant to be 0.02.

Which gives my setup as 113.2 ppd... though as I only use a 480p signal I guess I game at 75.5 ppd

Thanks, I made a typo, it is 0.02. I corrected it.
And yes the units for distance and diagonal don't matter as long as they are the same.

Most games don't use 1080p, not even the full 720p. Anyway I was looking for the best case scenario, is there a reason to go beyond 1080p next gen or after. I think it will be worthwile as screens keep getting bigger to get a wider field of view.

HD remakes look so much more pleasant then wii games on big screens although they are not as graphically impressive. The extra resolution makes it a lot easier on the eyes. Playing Wii games at the SMPTE standard of 30 degrees field of view will give you 27.7 ppd at the center.

Well according the first graph, In my bedroom I would need to go above a 26" screen to notice any difference even for 720p over 480p... and as there seems to be a gap between 26" and 32" TVs nowadays I would have to buy a 32" TV just to have a decent picture improvement over standard definition (a TV that large would look ridiculous in my room)

Hell in our entire house there isn't really a suitable place to put a TV that would have a viewing distance over 10-12 feet, and I think anything above a 40" screen would look foolish for that distance anyway (current living room TV is 28" CRT beast that probably weighs as much as me) Which means 720p is really as high a resolution as is useful to me.

EDIT: The second graph seems to have a different conclusion though... the first seems to indicate that 10 feet away you can go up to 50" before you notice a benefit to 1080p, wheras the second indicates you would notice the benefit of 1080p as low as 15"

EDIT 2: Ok, now I read the OP properly I understand the difference... I have to admit though the supposed 30 degree viewing angle seems really large to me, I don't like watching TV at that size, I prefer to be able to see everything without having to look in different directions. (I think my bedroom angle is about 15 degrees at a guess, can't be bothered to do the math)