Electrophoretic liquid crystal displays: How far are we?

 Electrophoretic liquid crystal displays: How far are we? Susanne Klein HP Laboratories HPL-2013-23 Liquid crystal; electrophoresis; display We are in the middle of another revolution in information processing and distribution. After the invention of script and then print, pictures are taking over again. The number of gadgets with displays is larger than the world population. On average every single person on earth owns at least one device with a display on it. These displays are the portals to everything we do: communicating, reading, shopping, learning etc. But are they up to the job? The most successful display technology to date is still the liquid crystal display. It is a well established technology which can be scaled in size from small to large and, depending on the drive electronics, has no significant inherent limits to resolution. However, poor light efficiency and data congestion caused by high pixel densities are still technical challenges in need of good solutions. Could electrophoresis in a liquid crystal host be the answer? The fundamental basics and technical challenges of this interesting new approach will be discussed. External Posting Date: March 21, 2013 [Fulltext] Approved for External Publication Internal Posting Date: March 21, 2013 [Fulltext] Additonal Publication Information: Published in Liquid Crystals Reviews. Copyright 2013 Liquid Crystals Reviews. Electrophoretic liquid crystal displays: How far are we? Susanne Klein HP Labs, Long Down Avenue, Bristol BS34 8QZ, UK [email protected] We are in the middle of another revolution in information processing and distribution. After the invention of script and then print, pictures are taking over again. The number of gadgets with displays is larger than the world population. On average every single person on earth owns at least one device with a display on it. These displays are the portals to everything we do: communicating, reading, shopping, learning etc. But are they up to the job? The most successful display technology to date is still the liquid crystal display. It is a well established technology which can be scaled in size from small to large and, depending on the drive electronics, has no significant inherent limits to resolution. However, poor light efficiency and data congestion caused by high pixel densities are still technical challenges in need of good solutions. Could electrophoresis in a liquid crystal host be the answer? The fundamental basics and technical challenges of this interesting new approach will be discussed.