US Patent 10176749 Electronic book

An electronic book is disclosed in which a spine housing system electronics supports one or more display panels, each display panel being configured with a transparent layer such as E-ink, and a light-emitting layer, such as an organic light-emitting diode layer. In embodiments of the invention, the layers may be stacked and fitted to a substrate. In further embodiments, multiple display panels may be joined to the spine to provide the appearance of a traditional book or notebook. A microprocessor in the spine may control the display panels and receive user input to alternately activate the layers in a display panel. A pen may be provided for interacting with the device and activating specific layers within a display panel.