after working for a while with my LCD I think it has a problem or maybe myself! because for seeing a picture on it I have problem. actually the problem is viewing angle or maybe brightness(I'm not sure). yes I know that it's a disadvantages for LCDs:
Limited viewing angle, causing color, saturation, contrast and brightness to vary, even within the intended viewing angle, by variations in posture.
I cannot see the picture very good on my LCD and while I'm trying to figure out the problem by changeing the viewing angle but still it's not work very good.
I think all LCDs have a glass filter and my LCD doesn't has. I'm speaking about that black plastic which set the brightness or contrast.
my LCD is this:
Maybe that's because of the Gamma!?
now that I'm seeing the LCD it has that plastic.
What's the difference between contrast and brightness?