All use high - contrast electronic ink screens that only use power when «turning» the page, so the batteries last for weeks or months at a time. (gigaom.com)
Amazon insists that when it comes to reading e-books, the device that does it best is the Kindle and its black - and - white electronic ink screen is better than the iPad's backlit color LCD display, which Bezos says causes eye strain. (phys.org)
E-book readers have electronic ink screens designed to resemble paper. (newegg.com)