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US 2017/0360170 A1Published application
Foldable display device
AssigneeAu Optronics Corporation
InventorsPo-Yang Lin, Chia-Hsun Tu, Keh-Long Hwu
Life of this patent
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Abstract
A foldable display device includes a shell. The shell has an expanding state and a folding state. A first direction and a second direction are defined to be orthogonal. When the shell is at the expanding state, the shell has a first length L1 along the first direction and a second length L2 along the second direction. The ratio of the first length L1 to the second length L2 is between 1.3 and 2. When the shell is at the folding state, the shell has a third length L3 along the second direction and a fourth length L4 along the first direction. The ratio of the third length L3 to the fourth length L4 is also between 1.3 and 2.
Claims7
A foldable display device, comprising:
- a shell having an expanding state and a folding state, wherein the shell comprises a first shell and a second shell, the first shell has an accommodating slot, the second shell pivots on the first shell for rotating around a rotating axis relative to the first shell so as to have an expanding position corresponding to the expanding state and a folding position corresponding to the folding state;
- a flexible display having a main body section and an expandable section which are connected to each other, wherein the main body section is assembled with the second shell, the expandable section is movably assembled with the first shell;
- when the second shell is located at the folding position, the expandable section is disposed in the accommodating slot;
- when the second shell is located at the expanding position, the flexible display is stretched by the first shell and the second shell, such that the expandable section moves outward from the accommodating slot;
- and
- a reel shaft and an elastic component with two ends, wherein the reel shaft pivots on the first shell and is located inside the accommodating slot, the two ends of the elastic component are opposite to each other and affixed to the first shell and the reel shaft respectively, the flexible display further has an extending section, an end of the extending section is connected to an end of the expandable section which is away from the main body section, the other end of the extending section is connected to the reel shaft;
- when the second shell is located at the expanding position, the expandable section is adapted to move outward from the accommodating slot to cause the elastic component to be elastically deformed so as to store an elastic potential energy;
- when the second shell is located at the folding position, the elastic potential energy is released so as to furl the extending section by the reel shaft, whereby driving the expandable section to be disposed in the accommodating slot;
- wherein, a first direction and a second direction are defined to be orthogonal, wherein the second direction is parallel to the rotating axis, when the shell is at the expanding state, the shell has a first length L1 along the first direction and a second length L2 along the second direction, the ratio of the first length L1 to the second length L2 is between 1.3 and 2, wherein when the shell is at the folding state, the shell has a third length L3 along the second direction and a fourth length L4 along the first direction, and the ratio of the third length L3 to the fourth length L4 is also between 1.3 and 2.
6 more elements
A foldable display device, comprising:
- a shell having an expanding state and a folding state, the shell comprising a first shell, a second shell and a third shell, the second shell pivoting on the first shell and being capable of rotating around a rotating axis relative to the first shell so as to have an expanding position and a folding position state, the third shell movably assembled with the first shell and having an approach position and an extension position;
- when the shell is located at the expanding state, the second shell is located at the expanding position, and the third shell is located at the extension position;
- when the shell is located at the folding state, the second shell is located at the folding position, and the third shell is located at the approach position;
- wherein, a first direction and a second direction are defined to be orthogonal, wherein the rotating axis is paralleling to the second direction;
- when the shell is at the expanding state, the shell has a first length L 1 along the first direction and a second length L2 along the second direction, the ratio of the first length L1 to the second length L2 is between 1.3 and 2;
- when the shell is at the folding state, the shell has a third length L3 along the second direction and a fourth length L4 along the first direction, and the ratio of the third length L3 to the fourth length L4 is also between 1.3 and 2.
3 more elements
Dependencies are inferred from the claim text.