Utilizing the electronic paper display technology, Citizen Watch has created a digital clock that is as thin as paper. This unique design is enabled by E Ink(r)Imaging Film. This easy-to-read, low-power display component is fully conformable, allowing product designers more creative freedom than ever before. Citizen Watch Co. and T.I.C.-Citizen Co. worked closely with E Ink to develop the electronic paper display used in this new clock.
full:
http://digitalcamera.101reviews.com/news/paper-thin-digital-clock