The Sharper Image is not the only firm that believes a colour screen could put it ahead of its e-reader competitors. Qualcomm has previously unveiled a colourful e-reader that relies on ambient light and is due to launch this Autumn.
Many commentators have suggested the days of simple e-ink e-readers could be numbered as more consumers look to multi-tasking tablets for their reading needs.
However, Amazon has announced its new generation Kindle is its fastest-ever selling e-reader, although seeing as Amazon does not release sales figures for its popular e-reader it's hard to gauge how successful the new device is compared to its predecessors.
The online giant said in the four weeks since the launch of its new Kindle and Kindle 3G, customers have ordered more Kindles on the site combined than any other product.
The Kindle has been remodelled with a sharper e-ink screen, which Amazon claims is 50 percent better than any other e-reader and has a smaller, sleeker, lighter body with up to one month's battery life and double the storage of its predecessor.