[Display Quality] new 21.5" vs old 20"

[cman-uk]

quick bump for the following two questions:

1] What is the contrast ratio of the new 21.5" display?
2] What is the response time (in m/s) for the new 21.5" display?

Figures for 1] and 2] for not only the 21.5" but also the 20" would be a bonus!

I am not sure where I can find that info! Help appreciated..

 

[decksnap]

quick bump for the following two questions:

1] What is the contrast ratio of the new 21.5" display?
2] What is the response time (in m/s) for the new 21.5" display?

Figures for 1] and 2] for not only the 21.5" but also the 20" would be a bonus!

I am not sure where I can find that info! Help appreciated..

I don't have those figures but, to reiterate, the difference between IPS and TN greatly outweighs these types of specs IMO.

 

[Eidorian]

As far as I know:
24" white iMac: "X"-IPS (not sure if it's S- or H-)
24" Alu iMac: H-IPS
20" White: S-PVA (Samsung) or S-IPS (LG.Philips)
20" Alu: TN

I never knew this. Thanks!

 

[Badger^2]

if this decision is just based on screen alone: 21"

As far as I know:
24" white iMac: "X"-IPS (not sure if it's S- or H-)
24" Alu iMac: H-IPS
20" White: S-PVA (Samsung) or S-IPS (LG.Philips)
20" Alu: TN

Im pretty sure thats correct as well.

I have a 20" white Core 2 Duo iMac and the screen is sweet.
I have a 24" white Core 2 Duo iMac and the screen is sweet.
I have 2 20" AL Core 2 Duo iMacs (2.0 and 2.4) and the screens suck.
I have a 24" AL Core 2 Duo iMac and the screen is sweet.

The 20" AL iMacs screens are horrible, all models, crappy viewing angle and there is a noticeable color shift from top to bottom.

They are completely useless for any design work.

 

[trip1ex]

I have the TN. It's great. Not as good as IPS, but nearly as good for straight on viewing which is how I use my iMac. ConsumerReports rated both screens excellent last time around.

I've never noticed the contrast shift in a movie. The only time I notice is if I put a certain color at the very top of the screen and the same color at the very bottom and look carefully at each color a few times. For example, an orange will have a slightly more yellow tint on the bottom of the screen than at the top. It is not something you easily notice unless you really look for it.

But it is pretty much impossible for your eye to take this all in at the same time. And in a movie it is even more impossible to see the difference because the scenery is always changing. The only way you'd notice is to pause the show and look carefully.

That being said I'd probably get a 21.5" iMac because there are many more improvements and extras compared to the old 20" besides the screen.

For the extra $200 or $300 you get a slightly better screen, slightly bigger screen with greater resolution, bigger hard drive, faster cpu, 4 memory slots, aluminum back that you will never look at, better speakers (quite noticeably better bass,) magic mouse wireless, wireless keyboard, brighter more energy efficient more responsive LED lighting and according to Apple quieter and better heat dissipation. Did I miss anything?

20" is nice though. Using it right now.

 

[Davieis]

Just got a 27-inch upgrading from the 20-inch Mid2007 model. The screens on the new iMacs are remarkably better than the older TN panels. This screen is freaking huge though!!!

 

[iamthedudeman]

Im pretty sure thats correct as well.

I have a 20" white Core 2 Duo iMac and the screen is sweet.
I have a 24" white Core 2 Duo iMac and the screen is sweet.
I have 2 20" AL Core 2 Duo iMacs (2.0 and 2.4) and the screens suck.
I have a 24" AL Core 2 Duo iMac and the screen is sweet.

The 20" AL iMacs screens are horrible, all models, crappy viewing angle and there is a noticeable color shift from top to bottom.

They are completely useless for any design work.

Actually there are two manufactures of the 20 screens, LG\Phillips which uses a inferior panel with 'dithering' and the AU Optronics (AUO) part M302EW02 which does not.

Trip1ex and myself and a few others did some digging on a thread awhile back and he got lucky and got a AU panel as did I. Looking straight on the panel looks great. Even at a angle not so bad but it does not compare to the new 21.5. Not even close. I just watched some Hulu and the screen is way better than my previous 20.

The 21.5 blows the previous 20 out of the water. A worthy upgrade.