—PHILIPS ADVANCES FLEXIBLE DISPLAYS “Devices based on organic transistors could be on the market by 2006” Aspiring paperboys might want to consider another line of work. New, flexible displays from Philips Research Laboratories could make getting a daily newspaper as simple as unrolling a sheet of electronic "paper" and downloading the day's news from your cell phone. Philips' prototype grayscale displays measure about 5 inches diagonally. They are 300 µm thick and can be repeatedly rolled up into a tube with a 4-cm diameter without damaging the display. Researcher Gerwin H. Gelinck at Philips' lab in Eindhoven, the Netherlands, says the displays offer contrast similar to that of magazines. The electronics also have the potential to operate at video speed. Gelinck presented the work last week at an American Chemical Society ProSpectives conference in Miami; a report also appears in Nature Materials [3, 106 (2004)]. In addition to bringing to life the sci-fi vision of animated newspapers updated in real time, the devices also represent a step forward in the fabrication of electronic devices based on organic thin-film transistors (TFTs). Philips scientists make the displays by gluing organic TFTs, grown on a polyimide plastic sheet, to a layer of flexible plastic embedded with "electronic ink" pixels. Growing the TFTs on plastic using a solution-based, low-temperature technique relies on readily available production processes and helps to cut costs.
by Bethany Halford |
February 02, 2004