US Patent No. 10,485,116

FOLDABLE DISPLAY DEVICE


Patent No. 10,485,116
Issue Date November 19, 2019
Title Foldable Display Device
Inventorship Jun-Hyung Kim, Seoul (KR)
Assignee LG DISPLAY CO., LTD., Seoul (KR)

Claim of US Patent No. 10,485,116

1. A foldable display device comprising:a display panel configured to be bent elastically;
a lower plate coupled to a bottom surface of the display panel;
a housing comprising a first plate for covering a portion of a bottom surface of the lower plate, a second plate for covering a remaining portion of the bottom surface of the lower plate, and a folding region defined by a hinge coupling between the first plate and the second plate; and
a sub-frame disposed in the folding region to couple the lower plate onto the housing,
wherein when the first plate and the second plate are folded, the sub-frame shields the folding region by being folded within the folding region in accordance with a folding of the first plate and the second plate,
wherein the sub-frame comprises:
a first unit sub-layer disposed under the bottom surface of the lower plate; and
at least one second unit sub-layer disposed further outwardly than the first unit sub-layer;
a fixed region fixed to a location between the lower plate and one of the first plate and the second plate; and
a slippage region disposed at a location between the lower plate and a remaining one of the first plate and the second plate, and
wherein when the housing is folded, a portion of the first unit sub-layer and a portion of the at least one second unit sub-layer that are located in the slippage region slip relative to each other.