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US 10,503,210 B2Granted
Folding device of foldable display and display device having the same
AssigneeLG Display Co., Ltd.
InventorsDai-Yun Lee, Jun-Hyung Kim, Seung-O Jeon, Young-Joon Yun, Shin-Suk Lee
Life of this patent
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Abstract
Disclosed are a folding device of a foldable display and a display device having the same. The folding device is rotatable sequentially or in stages through a plurality of unit hinges rotated relative to one another about multiple axes. Therefore, the folding device is applicable to both an inner folding type and an outer folding type, and the respective unit hinges are rotated by gear motions and may thus be stably rotated and assure reliability.
Claims12
A folding device of a foldable display, comprising:
- a plurality of unit hinges including a first unit hinge and a second unit hinge adjacent to the first unit hinge, the first unit hinge rotatable relative to the second unit hinge,
- wherein the first unit hinge comprises:
- a first rotary shaft extending in a direction around which the first unit hinge rotates relative to the second unit hinge,
- a second rotary shaft extending in parallel relative to the first rotary shaft and spaced apart from the first rotary shaft,
- a first gear formed on a first end of the first unit hinge and placed closer to the first rotary shaft than the second rotary shaft,
- a second gear formed on a second end of the first unit hinge and meshing with a third gear of the second unit hinge, the second gear placed closer to the second rotary shaft than the first rotary shaft,
- a first flat surface extending from the first gear to the second gear at one side of the folding device, the first flat surface configured to come into contact with and support a surface of the foldable display,
- a first rotation restriction member protruding from the first end in a direction away from the second end, and
- a first interference groove of an arc shape indented into the second end and configured to receive a third rotation restriction member of the second unit hinge to restrict a relative rotation between the first unit hinge and the second unit hinge to a predetermined range;
- and
- a plurality of connection units between two adjacent unit hinges of the plurality of unit hinges, each of the connection units securing the second rotary shaft of the first unit hinge and a third rotary shaft of the second unit hinge in a rotatable manner.
8 more elements
A display apparatus comprising:
- a plurality of unit hinges including a first unit hinge and a second unit hinge adjacent to the first unit hinge, the first unit hinge rotatable relative to the second unit hinge,
- wherein the first unit hinge comprises:
- a first rotary shaft extending in a direction around which the first unit hinge rotates relative to the second unit hinge,
- a second rotary shaft extending in parallel relative to the first rotary shaft and spaced apart from the first rotary shaft,
- a first gear formed on a first end of the first unit hinge and placed closer to the first rotary shaft than the second rotary shaft,
- a second gear formed on a second end of the first unit hinge and meshing with a third gear of the second unit hinge, the second gear placed closer to the second rotary shaft than the first rotary shaft,
- a flat surface extending from the first gear to the second gear at one side of the plurality of unit hinges,
- a first rotation restriction member protruding from the first end in a direction away from the second end, and
- a first interference groove of an arc shape indented into the second end and configured to receive a third rotation restriction member of the second unit hinge to restrict a relative rotation between the first unit hinge and the second unit hinge to a predetermined range;
- a plurality of connection units between two adjacent unit hinges of the plurality of unit hinges, each of the connection units securing the second rotary shaft of the first unit hinge and a third rotary shaft of the second unit hinge in a rotatable manner;
- and
- a display panel having a surface that come into contact with and is supported by the flat surface of each of the plurality of unit hinges.
9 more elements
Dependencies are inferred from the claim text.