I currently have a 19´´ and 17´´ monitor and would like more monitor space.I am looking at getting two 15´´ or one 21´´ TFT monitor.My question is to those of you with more than 2 monitors which do you think would be more useful two 15´´ or one 21´´ and why?
1. the size of the monitors
2. the resolution of the monitors
3 cost versus performance
there are then some secondary issues such as class of TFT, bandwidth capability, refresh rate, dpi, contrast levels, maximum brightness, emission standards, response times, connection standard (analogue or DVI) and dot pitch.
Complimenting these are the secondary functions which may be offered ie. USB hub, integral speakers etc.
A 21 inch TFT screen which has a 1600x1200 native resolution will be four times (at least) more expensive than a single 15 inch which supports 800x600. However, the 21 inch (in this example)would be able to display the same data as four of the 15 inch screens and would generally be of a far higher specification in other areas.
The big but with TFTs at the moment is very few manufacturers or retailers are prepared to certify that the screen you purchase will be error free. The higher resolution screens are more prone to manufacturing faults.
I recently worked on another trading platform from my own that had 3 Dell 20/21 flat screens with 16ms response time and they were very good.However on reflection for me i think 19" flat screens would suffice and the cost saving is worth it.
I've also found that staring at TFT monitors for long periods seems easier on the eyes as you do not have problems with refresh frequencies etc. And I have a lot more space on my desk now the 19" CRT is gone.