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US 10,485,116 B2Granted
Foldable display device
AssigneeLG Display Co., Ltd.
InventorJun-Hyung Kim
Life of this patent
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Abstract
A foldable display device is discussed, which is capable of shielding the folding region of a housing, to which a flexible display panel is coupled, so as to prevent exposure of the folding region to the outside upon an operation of folding the housing, and which is capable of improving the flatness of the flexible display panel when the flexible display panel or the housing returns from the folded state to the unfolded state.
Claims4
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.
11 more elements
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, and
- wherein the first unit sub-layer and the at least one second unit sub-layer are formed to have a same shape as each other, and have a same hole pattern such that holes formed in the first unit sub-layer and holes formed in the at least one second unit sub-layer communicate with each other.
7 more elements
Dependencies are inferred from the claim text.