I realize that sub-pixel rendering is a misleading term, there are two concepts: a) Making use of fact that a physical pixel is a composite of multiple, disjunc

I realize that sub-pixel rendering is a misleading term, there are two concepts: a) Making use of fact that a physical pixel is a composite of multiple, disjunct areas of single-colored elements. b) Rendering objects with higher-than-pixel-density resolution, for example lines which appear thinner than a pixel. /Both/ relies on the fact that a pixel has an area, i.e. it is not a point, which is the point I was trying to make. A pixel on LCDs is indeed square most of the time, the subpixel elements are not. CRTs, of course, different story. All the "problems" he describes actually arise from the misconception that a pixel is a /point/ sample. It is an area sample, and if you treat it as such, the rest follows.