Patent ID: 8207947

Claim:
An electronic document reading device configured for one hand operation, the device comprising: a housing; an electrophoretic display mounted in said housing above a pixel driver circuit, wherein said pixel driver circuit comprises organic pixel driver circuitry on a flexible plastic substrate; control electronics coupled to said display for controlling displaying of an electronic document; at least one user control coupled to said control electronics for operating said device wherein said control is operable using the same hand of a user that is used to hold said electronic document reading device while carrying said device in a palm of the hand and reading said electronic document; and a rechargeable power source configured to power said control electronics and said display; and wherein said housing has a width to fit at least on the palm of an adult human hand, said width being less than 90 mm, wherein said display comprises no less than 80% of an area of said front surface of said device, wherein said housing has a length of at least twice said width, wherein a ratio of a length of a display area of said electrophoretic display to a width of said display area of said electrophoretic display is at least 2.2:1, and wherein said device has a thickness of substantially equal to or less than 5 mm, and wherein said control electronics and said rechargeable power source are disposed within said housing so as to provide a center of mass of said device which, when a lower part of said device is held in a said palm, is located at a distance of no greater than 33% of said length from a lower end of said device and located substantially adjacent to said user control.