importance of dot pitch

[darrenjg_2000]

Hi,
this may sound a really stupid question, but how important is dot pitch compared to resolution?
Would 1280x1024 with .25 dotpitch appear sharper than 1152x870 with .21 dotpitch?

Thanks

Darren

 

[GoSharks]

Dot pitch and resolution really have no relation to each other. How much information is displayed is defined by resolution. In general sharpness is defined in part by dot pitch (smaller is better), and how the unit was aligned for convergence, and focus. This is not to say that all units with smaller dot pitch will be better. A unit with a loose dot pitch that is aligned with better convergence and focus will look better than a unit with a tighter dot pitch and poor convergence and focus.

Jim Witkowski
Chief Hardware Engineer
MonitorsDirect.com

<A HREF="http://www.monitorsdirect.com" target="_new">MonitorsDirect.com</A>

 

[DCB_AU]

It all depends on the type and brand of monitor as well.
Generally the finer dot pitch the better.

DCB_AU

 

[compuhan]

Try this: lower and raise your rez on your monitor. What do you see? You'll notice text gets larger and blockier at low rez but it looks sharper. This is because the pixels composing the text is now composed of more phoshpor triads though the pixel count (the screen) has dropped. At higher rez the text will still display the same number of pixels, but it will be composed of less triads (assuming the program doesn't scale it). Is the text "sharper"? not likely since it's only defined by a few triads, but you can fit more of the text on the screen as the pixel count went up. Now imagine a game at 1600x1200 versus 800x600. Which is sharper? well, the 1600x1200 of course because it has more pixels, but each pixel is smaller and fuzzier than a pixel 800x600 and the text will look smaller and fuzzier too(again, if program doesn't scale it). So, it all depends on what you mean by sharpness. But by most people, rez is sharpness.

Rez is the sharpness by total pixels while pitch (if correctly and consistently reported) is the sharpess per pixel. Now imagine changing pitch. Well, if the pitch goes up near limit of the resolution, then you'll get small fragmented (in the shape of the triad arrangement) text but if the pitch goes down at low rez, you'll get large sharp text that's digitally blocky. IF the pitch gets larger than the pixel, then you won't see anything at all except for images larger than one pixel. Finally, if the pitch gets infintesimally small, the sharpess of the text itself will not be noticeable. confused...

In reality 1280x1024 at 0.25 will be superior to 1152x870 at 0.21 digitally and probably not be any noticeable less sharp "physically" since 0.25 (if reportedly accurately) is probably well below the max rez. But this depends on what standard of pitch one is using. I read that pitch is measured differently by different people.


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