*The Official 22? Chi Mei 6-bit TN Panel Thread*

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hans007

Lifer
Feb 1, 2000
20,212
18
81
Originally posted by: willbemcse
so westinghouse is not a good moniter for the price $199 in bbuy for bfriday . I will be doing , video editing and playing games. I have 6600gt card in my pc right know.

thre is a benq 20" wide at newegg for $199 or was... with some coupon. might as well not bother with black friday, i'd rather have a benq than a westinghouse.
 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
Originally posted by: hans007
Originally posted by: willbemcse
so westinghouse is not a good moniter for the price $199 in bbuy for bfriday . I will be doing , video editing and playing games. I have 6600gt card in my pc right know.

thre is a benq 20" wide at newegg for $199 or was... with some coupon. might as well not bother with black friday, i'd rather have a benq than a westinghouse.

:confused: that was way too general...generally speaking, benQ may have a better reputation than westinghouse as far as LCD monitors go, but then again BenQ has been making LCD's alot longer than Westinghouse has...and i see nothing like what you described on newegg. Furthermore, its a 22" display for $199 vs a 20" display for $199. if size is what you are after, the choice is obvious. If premium picture quality is what your after, we have already cleared that up...
 

Matt2

Diamond Member
Jul 28, 2001
4,762
0
0
I think I'd rather have a 20" 1680x1050 display over a 22" 1680x1050 display. Pixel pitch FTW!
 

xtknight

Elite Member
Oct 15, 2004
12,974
0
71
http://www.widescreengamingforum.com/forum/viewtopic.php?t=7523

The Chi Mei 22" TN LCDs are great for gaming because they have zero milliseconds of input lag, since they have no response time compensation (RTC). On RTC-enabled panels, a buffer of at least (1000/vfreq) ms. is needed to store at least one frame. The big dot pitch makes them fast enough that they didn't have to rely on overdrive. I'm starting to think the images on LesNumeriques makes the 22"ers' response time look worse than it really is.
 

Doomguy

Platinum Member
May 28, 2000
2,389
1
81
Hmm, shall I get two of these on Black Friday with my Best Buy bucks and pay no tax? My four and a half year old Mitsubishi DP2070u might have found a replacement...
 

kmmatney

Diamond Member
Jun 19, 2000
4,363
1
81
I bought the Chi Mei 22" LCD for a computer I'm building at work. It will be used to control a piece of scientific equipment. No dead pixels, and overall a decent display. As expected, it looks the same as my Acer at home. The response time is fast, and colors look very good. On the Chi Mei, I'm using the Analog connector with on-board NVidia 6100 video, and the screen looks excellent. I thought there might be trouble using the RGB connector on a screen this large, but this was not an issue. The base is about the same as the Acer - cheap plastic that at first glance does not look sturdy, but does the job. There is a removable cover over the back connectors, and once removed, access to the DVI and RBG connectors is easy. This is nice, as I have a hard time getting the connectors off on my other LCDs.

Overall a good monitor for those who want a larger display (and larger pixels) at the expense of viewing angle and true 8-bit color (although colors do look good, and color gradients are excellent).

The price for this monitor is not correct: it's $338.99 + shipping at NewEgg.
 

BernardP

Golden Member
Jan 10, 2006
1,315
0
76
For information regarding pixel size in relation to screen size/resolution, have a look

at the graph on this page

The 1680x1050 22-inch appears to be a reasonnable middle ground. The pixel pitch is a bit smaller than a 19-inch 5:4 LCD.

 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
Originally posted by: kmmatney
I bought the Chi Mei 22" LCD for a computer I'm building at work. It will be used to control a piece of scientific equipment. No dead pixels, and overall a decent display. As expected, it looks the same as my Acer at home. The response time is fast, and colors look very good. On the Chi Mei, I'm using the Analog connector with on-board NVidia 6100 video, and the screen looks excellent. I thought there might be trouble using the RGB connector on a screen this large, but this was not an issue. The base is about the same as the Acer - cheap plastic that at first glance does not look sturdy, but does the job. There is a removable cover over the back connectors, and once removed, access to the DVI and RBG connectors is easy. This is nice, as I have a hard time getting the connectors off on my other LCDs.

Overall a good monitor for those who want a larger display (and larger pixels) at the expense of viewing angle and true 8-bit color (although colors do look good, and color gradients are excellent).

The price for this monitor is not correct: it's $338.99 + shipping at NewEgg.

Cool. Thanks for the review :thumbsup:
 

Ricochet

Diamond Member
Oct 31, 1999
6,390
19
81
For those who have this panel, have you tried playing DVD movies on it?

I had the Viewsonic one and while it was great for gaming, it was horrendous for movies. The color depth for black was very lacking and looks very washed out. I know LCDs in general do not do well with displaying blacks as compared to other displays such as plasma, but this TN Panel was really subpar. I have a Dell 20" Ultrasharp as well and it is so much better with movies (and of course as whole has better desktop IQ).
 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
Originally posted by: ricochet
For those who have this panel, have you tried playing DVD movies on it?

I had the Viewsonic one and while it was great for gaming, it was horrendous for movies. The color depth for black was very lacking and looks very washed out. I know LCDs in general do not do well with displaying blacks as compared to other displays such as plasma, but this TN Panel was really subpar. I have a Dell 20" Ultrasharp as well and it is so much better with movies (and of course as whole has better desktop IQ).

hm...i was curious about this myself...i assume you played with color settings till your fingers were sore?
 

Ricochet

Diamond Member
Oct 31, 1999
6,390
19
81
Originally posted by: Hyperlite
Originally posted by: ricochet
For those who have this panel, have you tried playing DVD movies on it?

I had the Viewsonic one and while it was great for gaming, it was horrendous for movies. The color depth for black was very lacking and looks very washed out. I know LCDs in general do not do well with displaying blacks as compared to other displays such as plasma, but this TN Panel was really subpar. I have a Dell 20" Ultrasharp as well and it is so much better with movies (and of course as whole has better desktop IQ).

hm...i was curious about this myself...i assume you played with color settings till your fingers were sore?

I've played with the settings a little bit but can't say I'm good at it. My other monitors (CRT and my Dell) all work fine at default, though. Anyways, I had already returned the monitor to Costco since I was not happy with the overall quality.
 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
Originally posted by: ricochet
Originally posted by: Hyperlite
Originally posted by: ricochet
For those who have this panel, have you tried playing DVD movies on it?

I had the Viewsonic one and while it was great for gaming, it was horrendous for movies. The color depth for black was very lacking and looks very washed out. I know LCDs in general do not do well with displaying blacks as compared to other displays such as plasma, but this TN Panel was really subpar. I have a Dell 20" Ultrasharp as well and it is so much better with movies (and of course as whole has better desktop IQ).

hm...i was curious about this myself...i assume you played with color settings till your fingers were sore?

I've played with the settings a little bit but can't say I'm good at it. My other monitors (CRT and my Dell) all work fine at default, though. Anyways, I had already returned the monitor to Costco since I was not happy with the overall quality.

did you exchange it for something? did you notice twinkling in movies?
 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
I just went on the bestbuy website and ended up searching the entire country for availability of the westinghouse. it apparently doesn't exist. None in new york, none in austin, none in atlanta, none in LA....i don't know what is up, but its a little wierd....
 

Ricochet

Diamond Member
Oct 31, 1999
6,390
19
81
Originally posted by: Hyperlite
did you exchange it for something? did you notice twinkling in movies?

I got a refund. Not sure what you mean by twinkling. Main problem in movies was just displaying blacks.
 

Hyperlite

Diamond Member
May 25, 2004
5,664
2
76
Originally posted by: ricochet
Originally posted by: Hyperlite
did you exchange it for something? did you notice twinkling in movies?

I got a refund. Not sure what you mean by twinkling. Main problem in movies was just displaying blacks.

I see. There used to be a problem with the TN panels when playing back movies and HD content, a sort of twinkle would appear throughout an image as a product of some sort of conversion...i'm not sure on the particulars, i never experienced it first hand. All modern video cards have a noise reduction feature that pretty much does away with it, i was just curious.
 

letdown427

Golden Member
Jan 3, 2006
1,594
1
0
Glad to see someone started a thread like this. It's just too tempting, 2x22" for less than 1x24".

For what it's worth, I recently used a Belinea 20.1" widescreen, and it seemed of pretty good quality, and Belinea are also offering one of these panels, which I noticed isn't on the list.

Also, iiyama offer one, which is reviewed here. Seems like a pretty honest review.

There'll also be a Mirai one soon, but I don't think it's available yet.
 

Makaveli

Diamond Member
Feb 8, 2002
4,923
1,508
136
Guys from what i've heard from numerous people, the Samsung uses it own panel and not the Chi Mei 6-bit TN. The Samsung panel is suppose to be a TN III panel with 8bit color. Anyone have any more info on this panel.
 

xtknight

Elite Member
Oct 15, 2004
12,974
0
71
Originally posted by: Makaveli
Guys from what i've heard from numerous people, the Samsung uses it own panel and not the Chi Mei 6-bit TN. The Samsung panel is suppose to be a TN III panel with 8bit color. Anyone have any more info on this panel.

Well, someone opened up a Samsung 225BW and found a Chi Mei panel inside. They may vary. Samsung's B-TN III is just another 6-bit panel that dithers to 8-bit.
 

emilyek

Senior member
Mar 1, 2005
511
0
0
I've had the Samsung 225bw for about three weeks. I don't know what's inside it, although I also read someplace that it does not use the Chimei, but a proprietary 8-bit TN III panel.

I dunno which one it is, but if people are reporting the same top and bottom blacklight bleed, then perhaps it does use the Chimei panel after all. Mine does it. It's not awful, but it's noticable.

Anyway, I like mine. The size is perfect for those who can't afford a 24", or who want to keep the 1680 x 1050 res. The 20" widescreens that I looked at seemed too short, but the 22" is perfect for gaming-- to me, anyway. The Sansung has, by far, the most handsome bezel of all of them, and I was willing to shell out another $50 to get it.

The 2 problems I've had with mine are: 1. DVD playback IQ is not the best 2. I don't see any serious ghosting in games, but I do get some tearing, especially on some FPSs. It could be my GPU, though.
 

BernardP

Golden Member
Jan 10, 2006
1,315
0
76
Speaking of the Samsung 225BW, it is surprising that they would use a Chi Mei panel in one of their monitors, since they manufacture their own 22-inch TN panel:

Panel specs here

Having someone find a Chi Mei panel in the samsung 225BW is really confusing.
 

xtknight

Elite Member
Oct 15, 2004
12,974
0
71
Samsung has used an AU Optronics panel in a 710n LCD before. It is quite out of place for them to use foreign panels. Rest assured they'd never use an LG Philips though (they are neck-to-neck competitors).

It is known that the CMO M220Z1-L01 uses 6-bit+Hi-FRC and isn't true 8-bit. I suspect the situation is the same with the LTM220M1, which Samsung probably intends to use soon.

Originally posted by: emilyek
DVD playback IQ is not the best

Could you be more specific on that one?
 

xtknight

Elite Member
Oct 15, 2004
12,974
0
71
The ViewSonic VX2235wm also uses the CMO M220Z1-L01. The Chi Mei CMV-221A is the VGA version of the CMV-221D. The panel may have input lag after all, as LesNumeriques did measure some.

Just to let you know, your OP is going to get long because the 22" market is about to explode. ;)

Something's missing from this thread. No, not cowbell, rather Chinese measurements.

Sceptre X22WG-Gamer measurements (lcd.zol.com.cn):

White level: 198 nits
Black level: 0.31 nits (contrast 635:1)
Color gamut: 75.6% (sRGB=72%) NTSC
Uniformity (center/corner): 1.12/1.19=94%

The black level is average, but color accuracy on midtones is decent. Bright colors are a little less accurate. It does have more backlight bleeding than usual.

BenQ FP222W measurements (lcd.zol.com.cn):

White level: 163 nits
Black level: 0.32 nits (contrast 515:1)
Color gamut: 75.9% NTSC
Uniformity: 1.27/1.49=85%

I assume the BenQ also uses the CMO as the measurements are pretty close.

ASUS MW221u measurements (lcd.zol.com.cn):

White level: 163 nits
Black level: 0.28 nits (contrast 578:1)
Color gamut: 76.7% NTSC
Uniformity: 1.19/1.37=87%

The color characteristics of the LCDs that use the CMO 22"w are quite consistent. Backlight bleeding however seems to vary a ton. Some have lots, some have virtually invisible bleeding. On all the models tested above, uniformity varied less than 15% from the center to the corner. One important thing to note is that it's pretty dark for an LCD panel. The BenQ and ASUS hit 163 nits max, which isn't bright at all for an LCD (CRTs are around 85-125). The Sceptre hit a little higher at 198. Keep in mind the ViewSonic VX2025WM reaches 264 nits, and the NEC 20WMGX2/Dell 2407 reach about 470 nits. That's actually a good thing though. You don't need much calibration if it's already at 160 nits. That's a pretty comfortable level at which to use a monitor.

Here are some more links:

Westinghouse LCM-22w2:
WSGF

Samsung 225BW:
WSGF