In fact the main difference in use between the two, seems that DX7590 reduces noise and so delails with a bit redframe, and the FZ20 produces bit more noise but takes more details with a bit...
I did not have the tripod at this time (bought little one recently...). In fact this is particularly the depth of field which is in question, I think... when I look to the full sise original picture,...
They was not much sun these days to improve this really on mine but it seems that the LCD is very clear on mine...
I never see such a cons in reviews, about the 7590 LCD... You may be have...