Taiwan's AU Optronics showed off an electronic book reader that combines a low-power electronic paper and a touch panel, a first for this type of product at the Display Taiwan 2009 show. The 6-inch prototype houses 800x600 pixels and has a 167dpi pixel density. It is capable of reproducing 16 gray levels, has an 8:1 contrast ratio and a reflectance of 27 percent. The touch functionality allows use