May 29, 2015
It takes a long time to develop novel display technologies. As a result, product designers sometimes express a desire for display characteristics that the industry cannot supply -- at least not yet, and maybe never.
It can work the other way, though. Candice Brown Elliott's brilliant Pentile Display architecture was initially developed to improve efficiency, effective pixel density, and battery life in laptop PCs using LCDs. Instead, the industry found ways to use a brute-force approach and create LCDs with more and more physical pixels, along with sufficient energy savings from improved backlights. Pentile waited for years to find its killer app: allowing Samsung to make larger OLED subpixels for a given pixel format, thus reducing current density and improving lifetime.
Sometimes, the app never comes and what once seemed a golden window of opportunity slams shut, never to re-open. That is more or less what happened to field-emission displays (FEDs). When development work began ..Read more