Electronic device comprising display support structure

An electronic device comprising:

• a first housing including a first space;
• a second housing including a second space, the second housing coupled to the first housing such that the second housing is slidable in a first direction including a slid-out direction;
• a bendable support member connected to the first housing, wherein the bendable support member is at least partially accommodated in the second space in a slid-in state and is at least partially coplanar to a part of the first housing in a slid-out state;
• a flexible display including a first area disposed to be visible when the second housing is in the slid-in state and a second area extending from the first area and accommodated in the second space through at least a portion of the bendable support member;
• and
• a support assembly disposed to be oriented from the first housing toward the second space and including a first link rotatably coupled to the first housing and second link rotatably coupled to the first link,
• wherein, in the slid-in state, a portion the first housing is disposed in the second space of the second housing to be invisible and a remaining portion of the first housing is disposed to be visible from outside, and
• wherein both a portion of the first link and a portion of the second link are configured to press a portion of a rear surface of the bendable support member during shifting from the slid-in state to the slid-out state to maintain a flat surface of the flexible display.