US 11,997,223 B2
Mobile terminal
Insu Song, Seoul (KR); Taeki Um, Seoul (KR); Minsoo Kim, Seoul (KR); and Woojin Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/757,286
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 12, 2019, PCT No. PCT/KR2019/017586
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/117941, PCT Pub. Date Jun. 17, 2021.
Prior Publication US 2023/0008000 A1, Jan. 12, 2023
Int. Cl. H04B 1/38 (2015.01); H04M 1/02 (2006.01)
CPC H04M 1/0237 (2013.01) [H04M 1/0268 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A mobile terminal comprising:
a first frame;
a second frame configured to switch from a first state to a second state by moving in a first direction from the first frame, and to switch from the second state to the first state by slidably moving in a second direction opposite to the first direction in the second state;
a third frame movable in the first direction or the second direction with respect to the second frame;
a flexible display unit including a first region coupled to the first frame, a second region coupled to the third frame, and a third region located between the first region and the second region and bent while surrounding the second frame;
a central bracket rotatably coupled to one side of the first frame or the second frame; and
a spring having an inner end portion fixed to the central bracket and an outer end portion fixed to the other side of the first frame or the second frame,
wherein the spring is spirally wound in the first state and unwound in the second state.