The larger sized your display and the denser your pixels, you're correspondingly fighting a sq cm pixel defect rate and drawing lower yields (^2) for each incre

The larger sized your display and the denser your pixels, you're correspondingly fighting a sq cm pixel defect rate and drawing lower yields (^2) for each increase, with the obvious effect on price. This is why, at trade shows, you see huge screens with low resolution and tiny screens of stunning resolution. Further, every time a new technology comes along (e.g. AMOLED), you throw out many of the manufacturing techniques you've developed to increase pixel yields.