Newision (Lilliput) 7" LCD useless on day-light
I recently purchased brand new Newision 7" LCD monitor NW618TVT (http://www.newision.com/nw619vt.htm) which looks exactly the same like Lilliput (probably there only a brand name is different). This is my first LCD in my car but I can say I am really disappointed about using it in day-light (if it is sunny, you don't see anything, on cloudy day it's little better but still bad).
I wonder if all of lcd monitors are so bad in day-light or Xenarc is some kind better? I don't know what is a problem (maybe a touchscreen foil), because I can see myself in the monitor almost like in the mirror. And if I compare picture from standard lcd (15" or 17" at home) or lcd from my camera or mobile phone, they are really sharp and clear... but not this one.
Another thing... yesterday we tried to connect Samsung 15" LCD (510N) and I was impressed of really huge picture:) But I don't have so many space in my car (I want to integrate it). But I still think I will sell my 7" and buy some larger (maybe 8" or 10"). 15" is to big:
And I can say I am impressed using touchscreen, so next monitor must have this.
What do you thing it would be the best choice?
What is important specification that lcd is bright on day-light too (contrast ratio, brightness?). Here are some data comparison between standard 15, 17 or 19" LCD and Lilliput 7" one: