Df and NF?

[Guest]

What are the differences bewtween NF and DF series? (yncmasters, Smasung)???? DF is dynaflat and nf natural flat, df have better pitch but cost less then NF , why?

 

[Guest]

I guess because the NF is better.

<font color=blue>Your Mouse moved. WINDOWS NT must restart for changes to take effect. Restart Now? [OK]</font color=blue>

 

[Arrow]

The technology is different. You can read up on it at samsungmonitor.com. Just click on DF and NF and read each blurb.

Rob
Please visit <b><A HREF="http://www.ncix.com/shop/index.cfm?affiliateid=319048" target="_new">http://www.ncix.com/shop/index.cfm?affiliateid=319048</A></b>

 

[Guest]

At least for Samsung, NF means an aperature grill monitor, while DF means a shadow mask monitor.

--------
I have not yet begun to procrastinate.

 

[Guest]

as I understand aperture monitors have line going across at low resolutions, shadow mask don't. It seems to be that NF is desighned to e flat and probobaly doesn't have any kind of distortion, right? DF was not desighned to be flat, it was flattened and most of them have 3mm bottom distortions.
Why NF is more expensive? DF has better pitch and as Samsung says it has better colors because of this pegment. www.samsungmonitor.com just tells about DF technology and says THE MOST ADVANCED SCREEN ON THE WORLD!!! same about all their monitors!

 

[Guest]

Here are some links to help you with the SM/AG difference:
recommended - <A HREF="http://www.pcguide.com/ref/crt/crt.htm" target="_new">http://www.pcguide.com/ref/crt/crt.htm</A>
<A HREF="http://www.maginnovision.com/Before_You_Buy/crt_technology.html" target="_new">http://www.maginnovision.com/Before_You_Buy/crt_technology.html</A>
<A HREF="http://www.eizo.co.jp/welcome/support/faqs/crt/index02.html" target="_new">http://www.eizo.co.jp/welcome/support/faqs/crt/index02.html</A>


In a nutshell, aperature grille and shadow mask monitors differ in how they separate pixels on the screen. In all monitors, the electron beam passes through a "filter" before striking the phosphor on the screen. This mask is there to make sure the pixels on the screen are finite dots, and not blured together.

A shadow mask is a metal sheet filled with small holes. The mask is relatively sturdy, but is darker than an AG simply because it allows fewer electrons through.

An aperature grille is an array of fine wires tightly bound in a vertical orientation. AG monitors are usually brighter and have greater contrast than SM monitors because they allow more electrons to strike the screen. Because of the "weaker" nature of wires, they require a stabalizer to be installed in larger monitors. 15" AG monitors usually have one horizontal stabalizer while 17" and larger usually have two. Consequently, a small shadow is cast on the screen where the stabalizers block the electron beam.
On my Sony 19" monitor, the shadows are very fine, and only noticeable on a light background. On any semi-dark/multi-colour image they are _not_ noticeable. I see it as a small price to pay for the fantastic image of the trinitron screen.

On the note of dot-pitch, see <A HREF="http://www.pcguide.com/ref/crt/crtPitch-c.html" target="_new">http://www.pcguide.com/ref/crt/crtPitch-c.html</A>. Basically, the dot-pitch is the distance between dots of the same colour. The dot pitch is the distance between adjacent sets of red, green and blue dots, which comprise one pixel. An AG dot pitch is measured horizontally while a SM monitor is measured diagonally, by nature of the design. In the case of SM monitors, the dot pitch is quoted as a horizontal value to produce a smaller number, but this does not accurately indicate the real dot pitch of the monitor.

--> I'm finished ranting, but am not sure I answered your concerns fully - see what you can find out from those links and post any more concerns you have.

Remember the most sound advice I can give if you are shopping for a new monitor - Go Shopping!
Get to know a few brands from the internet, then go to a store with a good display, and LOOK at monitors. There is no replacement for first hand knowledge. Compare the different technologies and see what you like best.

Cheers!

--------
I have not yet begun to procrastinate.

 

[Guest]

Well...I already have 955df and I LOVE IT! if u go to www.samsungmonitor.com and check on df series then it shows u that it's 0.20 dot pitch is different from aperature grill and all thos others, I know that colors on 955DF are the most exellent, I could have bought 950p but .. I wanted FLAT and shadow mask, anyone here ever heard or saw about ViewSonic PS790? (NOT PF790) it is about $600 in a store and my friend owns it, it says .25 pitch BUT at 1024x768 even 20 inches away from the screen I can actually see this HUGE striple pitch and colors are way too bright, but kick ass refresh rate (at 1600x1200 100hz!!!) another thing it is REALLy curved I don't mean distortion, but VERY NOT FLAT, I just found out thta LCD monitors have distortions too, in a store I saw a really good LCD with like 4mm top distortion!!! on 955df at 640x480 I can see not diagnal but horizonatal line if I'm really close to the screen. Some people don't see the curvature and distortion on my monitor, like my friend, when he came over to see my new monitor he was almost crying :"I WONNA FLAT MONITOR TOO" (he is the one with PS790) and when i said that it has a curvature - he looked at the monitor for 5 minutes and then looked at me like at a moron...he can't find out what curvature am I talking about... but I DO! after that I started to see a curvature in every thing I see like LOOK MY CAT'S BACK IS CURVED! I'm going nuts.... and why nobody told me that there are things like distortions? and when I asked what monitor to buy only 2 people answered and now when someone asks I see at least 6 answers??? huh???? what kind of people are u? u make conspiracy against me, right? u want me to go crazy????