Detachable electronic device with cover portion

1. An electronic device, comprising:

a detachable display portion;

a base body;

the base body including an attachment portion to which the detachable display portion attaches;

the attachment portion being located a depth from a rear edge of the base body; and

a cover, coupled to the base body, extending from a point of the base body behind the attachment portion and proximate to the rear edge of the base body.

2. The electronic device of claim 1 , wherein the cover is openable and closable when the detachable display portion is opened and closed such that an outer surface of the cover is placed on the same plane as an outer surface of the detachable display portion when the detachable display portion and the base body are closed together.

3. The electronic device of claim 1 , wherein the cover covers the depth from a rear edge of the base body when the detachable display portion and the base body are closed together.

4. The electronic device of claim 1 , wherein the base body includes a processor, a memory and a keyboard.

5. The electronic device of claim 4 , wherein the detachable display portion is a tablet device.

6. An electronic device, comprising:

a base body that contains a shaft for attaching to a detachable display portion, wherein a depth of the base body remains behind the shaft; and

an opening and closing body with an outer surface that is attached to the base body;

wherein the shaft supports the opening and closing body to allow it to be openable and closable with respect to the base body; and

wherein the opening and closing body covers the depth of the base body and remains behind the shaft when the shaft is in a closed position with respect to the base body.

7. The electronic device of claim 6 , wherein the opening and closing body is openable and closable when the detachable display portion is opened and closed such that an outer surface of the opening and closing body is placed on the same plane as an outer surface of the detachable display portion when the detachable display portion and the base body are closed together.

8. The electronic device of claim 6 , wherein the base body includes a processor, a memory and a keyboard.

9. The electronic device of claim 6 , wherein the shaft is an attachment portion for the detachable display portion in the form of a tablet device.

10. An electronic device, comprising:

a base body that contains a movable shaft for attaching to a detachable tablet portion, wherein a depth of the base body remains behind the shaft; and

a cover that attaches to the base body and transitions when the shaft is moved;

wherein the base body contains a stepped portion between the shaft and a rear edge of the base body accommodating opening and closing of the shaft with respect to the base body; and

wherein the cover is positioned and shaped to cover the rear edge of the base body when the shaft is closed with respect to the base body.