IWETHEY v. 0.3.0 | TODO
1,095 registered users | 0 active users | 0 LpH | Statistics
Login | Create New User
IWETHEY Banner

Welcome to IWETHEY!

New Interesting.
That's the first 17"-18" LCD that I recall seeing with a claimed 1600x1200 resolution. It seems it must be interpolated though because multiplying the dot pitch of 0.27 mm by 1600 pixels gives 17" and the diagonal size is only 17.4"... Interpolation is going to give fuzzy text at 1600x1200.

The contrast ratio is OK at 400:1 (higher is better and 500:1 is available on some), but the response time of 25 ms is a little slow (faster is better and 16 ms is avaiable on some). And the brightness of 220 cd/m^2 is a little low (higher is better and I've seen some claiming 280 cd/m^2).

LCDs are certainly something I should look into more though since I won't be getting another monitor for at least 3 years. Maybe I can argue that the electricity savings will justify the price of a [link|http://www.newegg.com/app/ViewProduct.asp?submit=manufactory&catalog=20&manufactory=1922&DEPA=1&sortby=14&order=1|Eizo L985EX]. ;-)

Thanks!

Cheers,
Scott.
New Re: Interesting.
Thinkpads come with 1600x1200 LCDs (A31p). Mine is 1400x1050. Neither is interpolated.

Interpolation is not bad if done downward. I can't see how it's even possible to "overinterpolate". Characters would look horrible. 1280x1024 on this LCD is however just fine. At 1024x768 it starts getting ugly.

Also, interpolation ruins the good effect of SPA.
-drl
New 1600x1200 is easier on a 15" screen.
If manufacturing defects are distributed randomly per unit area (as they often are), then the smaller the area the greater the chance of having a defect-free screen. Thus 1600x1200 is easier to produce at high yields than 1600x1200 on a 17" or 19" screen.

Even if a 15" screen can do 1600x1200, it would give itsy bitsy text. ;-)

The A31P is certainly a very nice box.

I can't see how it's even possible to "overinterpolate". Characters would look horrible.

It's just a matter of having the electronics have a higher bandwidth than the physical pixel grid on the screen. It was quite common for early 15" monitors to quote maximum resolutions above 1024x768 with 0.28 to 0.32 mm dot pitches - they could physically display the stuff, but as you say it would look very bad because there would be more than one pixel of information displayed on each physical phosphor pixel - a no-no for sharp images.

Cheers,
Scott.
New Re: 1600x1200 is easier on a 15" screen.
Well, isn't the point that an LCD has a quantized drawing zone, while a CRT is a continuum?

(As mentioned, out of 10 A31s I've dealt with recently, not *one* had a single bad pixel. In the HMM, IBM lists some horrible-sounding tolerances for bad pixels - "no more than 11 bright, 18 dark, or 16 bright and dark combined". Sheesh!)
-drl
New Good point. I'll have to think on that...
[link|http://www.princetongraphics.com/product_sen751.htm|This] page at Princeton Graphics says:

1280 x 1024 Native Resolution:
Displays a crisp, clear 1280 x 1024 native resolution and is capable of 640 x 480 to 1600 x 1200 resolutions.*

Maximum/Native Resolution:
UXGA 1600 x 1200 Maximum Resolution*
XGA 1280 x 1024 Recommended Resolution

Compatibility:
Digital: Digital Visual Interface (DVI), up to 1280 x 1024
Analog: Scales up to 1600 x 1200*
VESA\ufffd 1280 x 1024 @ 85/75/60Hz
VESA\ufffd 1024 x 768 @ 85/75/70/60Hz
VESA\ufffd 800 x 600 @ 85/75/72/60/56Hz
VESA\ufffd 640 x 480 @ 85/75/72/60Hz
Super VGA, VGA, Macintosh\ufffd 832 x 624@ 75Hz,
Power Mac\ufffd and more

* Analog Input Mode Only.


They are doing some interpolation tricks, somehow, to get 1600x1200 when driven by analog signals. But physically, the SENergy 751 is a 1280x1024 LCD. The .PDF Specification Sheet says the active screen is 13.61\ufffd x 10.89\ufffd (345.6mm x 276.48mm). At 0.27 mm per pixel, there are 1280 pixels across and 1024 pixels up, so it adds up.

Cheers,
Scott.
Expand Edited by Another Scott Aug. 23, 2003, 11:44:55 AM EDT
     Latest thoughts on good 21-22" monitors for work? - (Another Scott) - (11)
         Can't immediately see how big this one is... - (static) - (1)
             Thanks, that's a 19". The 21" is the 1100DF - (Another Scott)
         Re: Latest thoughts on good 21-22" monitors for work? - (pwhysall) - (5)
             Interesting. - (Another Scott) - (4)
                 Re: Interesting. - (deSitter) - (3)
                     1600x1200 is easier on a 15" screen. - (Another Scott) - (2)
                         Re: 1600x1200 is easier on a 15" screen. - (deSitter) - (1)
                             Good point. I'll have to think on that... - (Another Scott)
         I LOVE mine - (broomberg)
         Re: Latest thoughts on good 21-22" monitors for work? - (qstephens)
         Ended up going with a Sony CPD-G520P - (Another Scott)

You should be skinned and fed to tassies for intercoursing with those devils.
97 ms