freak180, on 14 November 2012 - 09:26, said:
But I cant fine a site where
Hazro HZ27WB are shipped to the US

I was highly considering buy one in the past but I dont know who would ship it to the US
Bummer. I had a look at a few US websites but you don't seem to have the same selection of monitors over there, certainly not in the same price range. As for shipping to the US, I'd advise against it because it would be really problematic if you have a faulty monitor or an excessive number of defective pixels. The first monitor I ordered had a cluster of dead pixels, so I had to return it and get another.
freak180, on 14 November 2012 - 09:27, said:
The problem is the pixel density is very low, so you get the same resolution spread over a larger area. That monitor is only 82PPI, in comparison to your current monitor which is 96PPI and the 109PPI of the 27" Hazro I linked to - all of which are dwarfed by modern smart phones, which have screens between 300-450PPI. Everything on that screen would be larger but it's no better quality, which kinda defeats the point of "upgrading". It's certainly a decent monitor but you don't get any extra real-estate and the image will be less sharp.
It's pretty much impossible to get a "perfect" monitor. I love the 30" 2560x1600 display I have but it's only 60Hz, doesn't support 3D and has a higher response time than a TN-panel - it's also incredibly demanding for gaming, hence why I have two GTX680s in SLI (even then I get minor framerate drops in some games). Meanwhile TN-panels support 3D and have great response times but have poor colour reproduction and poor viewing angles, as well as maxing out at 1920x1200 (the larger monitors suffer from low pixel density). AMOLED looks like the next definitive display technology but it's incredibly expensive at this point and such displays are virtually impossible to find. It just comes down to your priorities and your budget.
If you're not big into gaming and your budget can be stretched to a 27" S-IPS 2560x1440 monitor then I'd recommend it, as that would offer the best viewing angles and colour reproduction (the criteria you list in your first post); if your budget is limited and you want to game then the monitor you listed would be a good choice. Upgrading from a 23" to a 24" seems remarkably wasteful, so you should rule that out.