don't you hate how aperature grill CRT's have square pixels that don't always match up

dpopiz

Diamond Member
Jan 28, 2001
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you know how since ap grill monitors have square pixels with red green and blue bars (like an LCD), the actual pixels from the video card don't always line up with the "pixels" of the monitor?
 

sandorski

No Lifer
Oct 10, 1999
70,791
6,350
126
Nope, haven't noticed. Perhaps if you described what you are seeing someone might be able to help.
 

Peter

Elite Member
Oct 15, 1999
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You'll never get exact pixel reproduction on a CRT. That's because the CRT input signal doesn't even consist of pixels, all it gets is a waveform for the R/G/B brightness over time.

If you want pixels to stay pixels, you need a flat panel display with digital DVI input.
 

dpopiz

Diamond Member
Jan 28, 2001
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what I mean is that, on a shadow mask (at least a small dot pitch one), the dots of phosphor aren't the same shape as the pixels that are being represented. so I think it typically looks better than aperature grill where the phosphor is in three adjacent bars, which together form a sqaure, because then you have this grid of black lines between the phosphor sqaures that doesn't usually line up with the pixels it's representing
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
81
1) My 21" aperature grille Nokia 445XPro is the nicest monitor I've ever owned.
2) How close are you to the monitor, a few millimeters? From a foot away, individial pixels are indiscernable...in fact, my eyes can't focus close enough to be able to see any lines between the pixels. I can tell that they're vertical lines, and not circles, but that's it.


Go here, and near the bottom is a button that says "Launch Calibrator". Click that. (FYI, to exit the page that it goes to, hold the cursor over the Monitorsdirect.com text at the upper left. An Exit button will appear then.)

Run the convergence tests there, and see what results you get. Not all monitors have convergence controls...at least not on the front. They might have the adjusters inside the casing, but opening it up will expose you to some potentially lethal charges. I needed to readjust mine (vertical and horizontal)...and actually, the convergence and focus do change as the monitor heats up. My screen is a bit (and I do mean, just a tiny little bit) misshapen when I first turn it on; in about 20 minutes, it's perfect.
 

ponyo

Lifer
Feb 14, 2002
19,688
2,811
126
Jeff7,

I'm pretty sure your 21" Nokia 445Xpro is shadow mask tube instead of aperture grille tube. All aperture grille tubes are Trinitron, DiamondTron, or SonicTron I believe. These tubes are totally flat and have two thin horizontal damper wires 1/3 and 2/3 across the screen. Nokia 445xpro has spherical curvature screen and no two lines. It's not a bad monitor though. My wife uses the same monitor and likes it very much.
 

rbV5

Lifer
Dec 10, 2000
12,632
0
0
Naustica, The Nokia 445XPro uses FD Trinitron® CRT (Nokia® FlatAG? technology)
 

Yourself

Platinum Member
Jan 3, 2000
2,542
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71
Originally posted by: Naustica
Jeff7,

I'm pretty sure your 21" Nokia 445Xpro is shadow mask tube instead of aperture grille tube. All aperture grille tubes are Trinitron, DiamondTron, or SonicTron I believe. These tubes are totally flat and have two thin horizontal damper wires 1/3 and 2/3 across the screen. Nokia 445xpro has spherical curvature screen and no two lines. It's not a bad monitor though. My wife uses the same monitor and likes it very much.

Nope it's an FD trinitron tube and a damn nice one :)

Self
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
81
Originally posted by: Naustica
Jeff7,

I'm pretty sure your 21" Nokia 445Xpro is shadow mask tube instead of aperture grille tube. All aperture grille tubes are Trinitron, DiamondTron, or SonicTron I believe. These tubes are totally flat and have two thin horizontal damper wires 1/3 and 2/3 across the screen. Nokia 445xpro has spherical curvature screen and no two lines. It's not a bad monitor though. My wife uses the same monitor and likes it very much.

Nope, aperature grille. It's got the two fine horizontal lines indicitive of an AG monitor. That, and the spec sheet says that it's an aperature grille. :) And it's totally flat. You sure you've got a 445Pro?
It's a very nice monitor; paid only $230 (shipped) for it too.:D
 

ponyo

Lifer
Feb 14, 2002
19,688
2,811
126
My wife has 21" Nokia Multigraph 445Xpro. I guess Multigraph are different monitors.
 

VIAN

Diamond Member
Aug 22, 2003
6,575
1
0
Never had a problem with aperature grille monitors. The picture is excellent except for the 2 damper wires, which I still see. You won't notice them at low resolutions though.
 

Robor

Elite Member
Oct 9, 1999
16,979
0
76
Originally posted by: Jeff7
1) My 21" aperature grille Nokia 445XPro is the nicest monitor I've ever owned.
2) How close are you to the monitor, a few millimeters? From a foot away, individial pixels are indiscernable...in fact, my eyes can't focus close enough to be able to see any lines between the pixels. I can tell that they're vertical lines, and not circles, but that's it.


Go here, and near the bottom is a button that says "Launch Calibrator". Click that. (FYI, to exit the page that it goes to, hold the cursor over the Monitorsdirect.com text at the upper left. An Exit button will appear then.)

Run the convergence tests there, and see what results you get. Not all monitors have convergence controls...at least not on the front. They might have the adjusters inside the casing, but opening it up will expose you to some potentially lethal charges. I needed to readjust mine (vertical and horizontal)...and actually, the convergence and focus do change as the monitor heats up. My screen is a bit (and I do mean, just a tiny little bit) misshapen when I first turn it on; in about 20 minutes, it's perfect.
Nice monitor calibration tool there, Jeff. Just ran it on my Compaq P1220. My vertical convergence was slightly off and I got my geometry perfect now. Thanks! :D