Electronic apparatus

A foldable electronic apparatus comprising:

• a main body portion having a main body portion back surface and a keyboard located at a part of the main body portion other than the main body portion back surface;
• a display portion having a display portion back surface and a display screen on a display surface which is opposite the display portion back surface;
• and
• a coupling portion that rotatably couples the main body portion and the display portion between a closed state and an open state or between the open state and the closed state,
• the coupling portion having a first protrusion which protrudes from the display portion back surface in a direction orthogonal to the display portion back surface, a second protrusion which protrudes from a surface opposite the main body portion back surface in a direction orthogonal to the surface opposite the main body portion back surface, and a shaft which rotatably couples the first protrusion and the second protrusion together,
• in the closed state, the electronic apparatus having a length extending in a longitudinal direction, a thickness extending in a thickness direction which is orthogonal to the main body portion back surface or the display portion back surface, and a width extending in a width direction which is perpendicular to the longitudinal direction and to the thickness direction,
• the main body portion having a main body portion width which extends in the width direction, the coupling portion having a coupling portion width which extends in the width direction, and the display portion having a display portion width which extends in the width direction, in which the display portion width is substantially equal to a sum of the main body portion width and the coupling portion width,
• in the closed state, the main body portion back surface and the display portion back surface face each other and the electronic apparatus is operable as a portable apparatus in which all of the display surface except for a relatively small perimeter portion thereof is usable as the display screen in the width direction, and
• in the opened state, the electronic apparatus is operable as a small-sized personal computer.

A foldable electronic apparatus comprising:

• a main body portion;
• a display portion having a display surface, the display surface having a length and a width associated therewith in which the length corresponds to a larger one of the length and the width;
• and
• a coupling portion that rotatably couples the main body portion and the display portion between a closed state and an open state or between the open state and the closed state, the coupling portion having a first protrusion which protrudes from a display portion back surface in a direction orthogonal to the display portion back surface, a second protrusion which protrudes from a surface opposite a main body portion back surface in a direction orthogonal to the surface opposite the main body portion back surface, and a shaft which rotatably couples the first protrusion and the second protrusion together,
• in the closed state, back surfaces of the main body portion and the display portion face each other and the electronic apparatus is operable as a portable apparatus in which all of the display surface having the display screen except for a relatively small perimeter portion thereof is usable as a display in at least a direction corresponding to the width thereof, and
• in the opened state, the electronic apparatus is operable as a small-sized personal computer.