Originally Posted by Mormonstang
That isnt a problem, its called auto light limiter on most tvs. What it does is dim the backlight when there is too much white on the screen. Its supposed to save power and to stop it from blinding you. I don't know how to turn it off but it has nothing to do with not being able to display white full screen haha
Yup I noticed this as well. For example, if you go to the google page you'll find the whites "washed out" and grey. The moment you start searching for something, the keyboard pops up, which makes only half the screen white while the bottom half is black. Instantly the backlight becomes brighter and the whites start to pop.
I'm sure you can change this with custom roms. I think I got spoiled by cm7/MIUI because on my DX, the whites are always backlit