Patent ID: 7339576

Claim:
An information display device comprising: a planar main unit including a semiconductor memory insertion slot in which a thin planar semiconductor memory is removably stored; a planar display unit having substantially the same shape as the planar main unit, the planar display unit including a display for displaying content stored on the semiconductor memory; an operation unit for entering an operation instruction to change the display state of the content on the display; and a controller configured to change the display state of the content on the display in accordance with the operation instruction entered using the operation unit, wherein the planar main unit and the planar display unit are interconnected by a connecting portion having a rotating shaft, wherein the display and a planar main unit top face are parallel to each other in a closed position, and wherein the planar display unit and the planar main unit are configured to rotate from the closed position to an open position around the rotating shaft and relative to each other such that the display and the planar main unit top face rotate in parallel planes, wherein the controller rotates a content direction of the content being displayed by an angle equal to an angle of rotation of the planar display unit relative to the planar main unit.