Tom's Hardware > Forum > Computer Peripherals > Flat Panels/ LCDs > It's finally here!!! 20 inch LCD with 16 ms

It's finally here!!! 20 inch LCD with 16 ms

Forum Computer Peripherals : Flat Panels/ LCDs - It's finally here!!! 20 inch LCD with 16 ms

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jmecor   09-15-2003 at 06:15:05 AM
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is that 20" or 21", it looks 21" but 20" viewable.

<font color=red>If your nose <b>RUNS</b>, and feet <b>SMELL</b>.
Then you must be born <b>UPSIDE DOWN</b>.</font color=red>

Reply to jmecor
jmecor   09-15-2003 at 06:15:43 AM
- 0 +

<font color=red>If your nose <b>RUNS</b>, and feet <b>SMELL</b>.
Then you must be born <b>UPSIDE DOWN</b>.</font color=red>

Reply to jmecor
p05esto   09-15-2003 at 03:31:36 PM
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I can't seem to get to the link you posted but I don't think that monitor is really 16ms. We would have heard that the technology was available to make large LCDs that quick. I have heard just the opposite.

Plus, I've come across other information in the past that LG is misslabeling their LCD screens. Using the best figures instead of "typical" response rates. I'm almost positive this monitor is 25ms at the best.

If you find out otherwise PLEASE let us know. I'd snag up a 16ms 20" LCD in a second...it's the purchase I'm most interested in now.

Reply to p05esto
DoomGaZer   09-16-2003 at 08:54:17 AM
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This is what I get from that link:

20.1" LM201U04
Features
Model Name LM201U04
Active Area[mm] 408.0 x 306.0
Outline Dimension[mm] 432.0 x 331.5
Thickness[mm] 16
Resolution 1,600 x RGB x 1,200
Aspect Ratio 4:3
Pixel Pitch[mm] 0.255(99.6)
Number of Colors 16.7M(8bit)
Luminance[cd/m2] 250
Color Saturation(%) 72
Weight[g] 3,200
Contrast Ratio 500:1
Interface LVDS
Viewing Angel[',U/D/L/R] 176/176(CR¡Ã10)(S-IPS)
Color Temperature[K]
Response Time[ms] 16
MP Schedule MP
____________________

They also show this:

23" Wide LM230W02
Features
Model Name LM230W02
Active Area[mm] 495.4 x 309.6
Outline Dimension[mm] 523.4 x 335.6
Thickness[mm] 41
Resolution 1,920 x RGB x 1,200
Aspect Ratio 16:10
Pixel Pitch[mm] 0.258(98.4)
Number of Colors 16.7M(8bit)
Luminance[cd/m2] 250
Color Saturation(%) 72
Weight[g] TBD
Contrast Ratio 500:1
Interface TMDS
Viewing Angel[',U/D/L/R] 176/176(CR¡Ã10)(S-IPS)
Color Temperature[K]
Response Time[ms] 16
MP Schedule Q4 '03
______________________

No telling but I noticed some other older models like the LM201U03 that were listed at 25ms. The MP thing prolly means mass production begins at the date listed. The 20.1" seems to already be in mass production but not on the market since the ones on the market list "now" as the MP date.

Reply to DoomGaZer
RRAMJET   09-16-2003 at 05:32:40 PM
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Yea gotta be careful of LCDs boasting 16ms response times. As doomgazer has illistrated these resp. times are at 8 bit colour, as soom as you turn the colour up to 16 or 32 bit the response time takes a big hit. Which is not really acceptable.

If he doesn't die, he'll get help!!!

Reply to RRAMJET
boby7_PL   09-16-2003 at 05:44:51 PM
- 0 +

>Number of Colors 16.7M(8bit)
AFAIK it means 8bit per color(RGB) and that is 24bit true colors.
16ms spec. usually means black to white and white to black again pixel response. That is fastes response and in fact not typical.

boby7

Reply to boby7_PL
Flamethrower205   09-17-2003 at 12:28:38 AM
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B-W rt is the not fastest, if u want speed check out gray to black, those are the fastest. When manufacturers give the rt, generally it's a time rise and time fall, so b-w-b, and is used as a standard measurement in comparison. If LG did pull something, giving b-w-b wold be legit, but instead it'd pull something like g-b response time.
To avoid confusion, the reason we say 32 bit color is b/c there are an extra 8 bits as alpha channels, disregard those for the now.

The one and only "Monstrous BULLgarian!"

Reply to Flamethrower205
boby7_PL   09-17-2003 at 01:48:56 PM
- 0 +

That’s weird...
AFAIK manufacturers get their "typical response time" (rt+ft) when color change

a. rt for “Rise time”
from 10% signal (above “clear black”) to 90% signal (bellow “full white”)-(rt)

b. and then back ft for “fall time”:
from 90% signal (bellow “full white”) to 10% signal (above “clear black”)-(ft)

But in fact time is taken when signal travels from 0%(b)->100%(w)->0%(b) full signal change. I always thought that it is fastest “color” change for LCD pixel(?)!

Well, maybe I’m wrong :-(


boby7

Reply to boby7_PL
Redwolf   09-17-2003 at 05:36:54 PM
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Not sure if it's this one, but I remember checking out the specs of an LG 20"er that had a 16ms listed on one site and 25ms listed on another. These sites were both LG's, one US and one somewhere in Europe. It's possible the same exact model could have different response times if there were different panels, but I still think it's sketch...

Reply to Redwolf
Flamethrower205   09-17-2003 at 09:26:50 PM
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They could be taking a shortcut. What happens is to get to only a partial black it takes more time, but, to go from a partial black (like say 50% grey) and then go to a black, you apply full power. It's like applying same power as u would w-b, but having to shift less.

The one and only "Monstrous BULLgarian!"

Reply to Flamethrower205
paapaa33   09-24-2003 at 10:22:54 AM
- 0 +

ok...got the Finland´s LG importer to phone and said
that they have en error in web tech details...LG´s
new models has 25ms time not 16ms...and forwarded information to their web administrative....

Reply to paapaa33
Flamethrower205   09-24-2003 at 10:50:03 PM
- 0 +

Dammit!! o well

The one and only "Monstrous BULLgarian!"

Reply to Flamethrower205
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