Hinge structure and electronic device including the same

A portable communication device comprising:

• a housing including a first housing portion and a second housing portion;
• a flexible display accommodated in the first housing portion and the second housing portion;
• and
• a hinge structure connected with the first housing portion and the second housing portion, the hinge structure including:
• a first arm configured to rotate about a first axis of rotation and including a first connecting portion;
• a second arm configured to rotate about a second axis of rotation and including a second connecting portion;
• a fixed bracket disposed in proximity of the first arm and the second arm, and including a first curved guide groove and a second curved guide groove;
• a first rotary bracket including a first sliding opening and a first curved rail formed therein, wherein the first connecting portion slides along the first sliding opening as the first arm rotates about the first axis, and the first rotary bracket connected with the fixed bracket such that the first rotary bracket rotates about a third axis by the first curved rail sliding along the first curved guide groove as the first arm rotates about the first axis;
• and
• a second rotary bracket including a second sliding opening and a second curved rail formed therein, wherein the second connecting portion slides along the second sliding opening as the second arm rotates about the second axis, and the second rotary bracket connected with the fixed bracket such that the second rotary bracket rotates about a fourth axis by the second curved rail sliding along the second curved guide groove as the second arm rotates about the second axis,
• wherein at least one display portion of the flexible display is configured to be bent as the first rotary bracket rotates about the third axis and the second rotary bracket rotates about the fourth axis.