As crisp and vibrant as AMOLED and Super AMOLED smartphone displays are, they roll off the assembly lines with a pretty big design compromise: most of the components in the marketplace right now make use of a little visual trickery called PenTile whereby green subpixels are shared amongst multiple whole RGB pixels. Meanwhile, traditional displays (CRT, LCD, plasma, you name it) typically use one red, one green, and one blue subpixel per pixel, and the end result is that AMOLEDs tend to be a little grainier by comparison at a given resolution. OLED-Info poi
