Emax

Hi thank you for that link. 
I will definitely get a display like that.

Where is the difference between:

1) http://www.rapidonline.com/Electronic-Components/16-x-2-OLED-Alphanumeric-Displays-500173/?sid=292447f7-1d42-4e22-a89f-d8ee21a09305

2) http://www.rapidonline.com/Electronic-Components/16x2-LCD-Display-Blue-Negative-Mode-White-LED-Backlight-57-2228  ?

Maybe somebody who knows what he's saying, would be so kind and write down a link of possible display(s)
To be honest I don't want to have an ugly yellow display. Perhaps someone could link a display with a black (blue) background and blue (black) letters 

That would be very nice.

Thank you very much in advance!!!