Akihabara News: Ortustech just outed a 4.8-inch LCD packing 1920×1080 pixels. That translates into a pixel density of 458.94 PPI. These are RGB pixels just like the ones in your notebook, LCD monitor and LCD TV. Viewing angles are 160/160 and the color gamut is 72% NTSC.
The technology used is called Hyper Amorphous Silicon TFT or HAST. Almost all LCDs today use amorphous silicon (a-Si) silicon so the special thing about HAST is that it is ‘hyper’, which represents the technology that allows for so many pixels to be crammed into so little space.
What I’m looking forward to is a smartphone that sports a 3.5- to 4-inch display with a true HD pixel format of 1280×720 or more. I think we are not too far from such a display.