Patent ID: 11940843
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device comprising:
a display unit; and
a roller configured to wind or unwind the display unit and comprising a flat portion, a first curved portion extending from the flat portion, and a second curved portion extending from the first curved portion toward the flat portion,
wherein a radius of curvature of the first curved portion is larger than a radius of curvature of the second curved portion, and a radius of curvature of the display unit wound around the second curved portion is larger than the radius of curvature of the second curved portion,
wherein the roller comprises:
a main roller having an outer peripheral surface including the first curved portion and the flat portion, the main roller comprising an opening region formed by opening a part of the first curved portion; and
a first auxiliary roller disposed in the opening region and having an outer peripheral surface corresponding to the second curved portion, and
wherein a central shaft of the first auxiliary roller is coupled to two opposite ends of the main roller.