Lowest pixel pitch for LCD's

[-Slacker-]

So I was wondering what's the smallest dot pitch for a humanely priced LCD monitor (not interested in the very latest gadgets and prototypes or whatever) that's at least 17 " in diagonal

 

[edplayer]

lowest at a reasonable price might be something like a 32" 1920x1080 monitor. Or any tv because most are 1920x1080 so as you get bigger the pixel pitch gets lower.

 

[aggressor]

Did you perhaps mean the opposite (high ppi\dpi)? If so, there used to be some 20" 1680x1050 monitors and now there are 23s at 1920x1080 like the new Dell IPS monitors. I'm not sure if there is anything better than that currently unless you look at smaller laptop-only screens.

 

[-Slacker-]

^Nah I meant pixel size ... that's what pixel pitch means right? .. uh ... this is embarrassing ...

Anyway, yeah, 1980 x 1200 for a 23 inch monitor seems pretty good

 

[Sp12]

20in at 1680*1050. What I have. But even then the aliasing still bothers me.

I don't see much aliasing on the Iphone 4's screen, and if you tile 64 of those 3in displays:

7680x3840 for a 24 in, compared to 1920*1200 on most current gen screens, something like 12.8 the PPI of current screens.

 

[VirtualLarry]

Staples sells an Emachines 21.5" LCD that is 1920x1080.

 

[Emulex]

eizo
lenovo has the 22 1920x1080
i have a 17" 1920x1200 (laptop)
so its possible depending on cost and desire.

i very much like the pixel pitch of 30" monitors. not sure why but it feels far superior to 24" but i'm guessing its very similar?

 

[NoQuarter]

dot pitch/pixel pitch is the distance between pixels so smaller dot pitch is sharper/better, like a 1920x1080 21.5" has a smaller pixel pitch than a 23" cuz the pixels are closer, so I think he wording was correct.

PPI is pixels per inch, so higher PPI = smaller dot pitch.

Anyway.. 21.5" 1920x1080 I think the best dot pitch you can get at a decent price, but I've heard 23" 1920x1080 is a very good compromise between screen size and dot pitch.

edit: for Emulex, the pixel pitch on 30" 2560x1600 monitors is lower than a 24" monitor, even though the 30" is bigger it has about the same ppi as a 21.5" 1920x1080.

 

[Voo]

The formula is actually rather easy:
dot pitch is usually quoted in mm (wouldn't it be nice if everyone could just use SI units? It's not that hard ), therefore:
<monitor size in inch> * 25.4 / Sqrt(x^2 + y^2)

Obviously a "smaller is better" unit, though I wouldn't get too small, since lots of software still doesn't work with the necessary windows changes (i.e. they just ignore the correct ppi settings or what else)..

Some values:
22" @1680x1050: 0.282
22" @1920x1080 (since emulex mentioed it specifically): 0.254 (21.5" would be 0.248)
24" @1920x1200: 0.269
27" @2560x1600: 0.227 (not that common, but there are some monitors with it in the wild)
30" @2560x1600: 0.252

Not sure how anyone could ever advocate TVs if dot pitch is important, since those have absolutely horrible values - imho unuseable if you aren't sitting at least 3-4m away from your desktop.

Obviously the 27" @2560x1600 are the best when we ignore notebooks or some even more special variants, but I don't know if there are any cheap variants available.. I doubt it.

 

[0roo0roo]

yea still waiting for iphone 4 density in pc displays..that would be awesome
http://en.wikipedia.org/wiki/IBM_T220/T221_LCD_monitors
"The IBM T220 and T221 are LCD monitors with a native resolution of 3840&#215;2400 pixels (WQUXGA) on a screen with a diagonal of 22.2 inch (564 mm). This works out as over 9.2 million pixels, with pixel density of 204 pixels per inch (80 dpcm, 0.1245 mm pixel pitch)"
:awe:

 

[LokutusofBorg]

Nearly every monitor I've ever looked at lists the dot pitch on the spec sheet. Easy to find.

From an old post of mine, here is a list of the monitors I'd used or considered buying when I upgraded my monitors a year ago, plus what I'm using at work now:

0.294mm : BenQ FP931 (old home monitors)
0.258mm : Dell 2009W (old work monitors)
0.282mm : Dell 2208WFP
0.270mm : BenQ G2400WD
0.270mm : HP LP2475w
0.282mm : Dell 2209WA
0.270mm : Dell 2408WFP (current home monitors)
0.270mm : Dell U2410 (current work monitors)

 

[Emulex]

i sit about 6 inches from 30" and about 5ft from 42" lol. must be getting old.

here's a tip for old people. the 30" monitors run at two resolutions 2560x1600 and 1280x800 - so if you plug in a single link dvi - guess what resolution you get (and only get). great for the older farts