Back to results
US 10,257,929 B2Granted
Variable stiffness film, variable stiffness flexible display, and method of manufacturing the variable stiffness film
AssigneeSamsung Electronics Co., Ltd.
InventorsSoo Chul Lim, Joon Ah Park, Hyun Jeong Lee, Seung Ju Han
Life of this patent
Estimating the term…
Abstract
A variable stiffness film, a variable stiffness flexible display, and a manufacturing method thereof may include a lower electrode, a variable fluid, and an upper electrode. A polymer layer may be formed on the lower electrode, and a variable fluid receiving portion is patterned on the polymer layer. A variable stiffness layer is formed by putting a variable fluid in the variable fluid receiving portion. The upper electrode is formed on the variable fluid layer.
Claims12
A variable stiffness film, comprising:
- a variable stiffness layer comprising:
- a lower electrode;
- a first variable fluid layer disposed on the lower electrode;
- an upper electrode disposed on the first variable fluid layer;
- and
- a second variable fluid layer disposed above the first variable fluid layer,
- wherein the first variable fluid layer comprises a plurality of first variable fluid receptacles that are arranged in a first pattern that respectively comprise a first variable fluid,
- the second variable fluid layer comprises a plurality of second variable fluid receptacles that are arranged in a second pattern, orthogonal to the first pattern, that respectively comprise a second variable fluid,
- the lower electrode or the upper electrode are arranged in a third pattern, and
- each variable fluid of the first variable fluid and the second variable fluid has a change in stiffness when one of an electric field and a magnetic field is generated between the upper electrode and the lower electrode.
7 more elements
A variable stiffness flexible display, comprising:
- a flexible display;
- and
- variable stiffness films disposed below the flexible display, each of the variable stiffness films comprising:
- a lower electrode;
- a variable fluid layer disposed on the lower electrode;
- and
- an upper electrode disposed on the variable fluid layer,
- wherein the variable fluid layer comprises a plurality of variable fluid receptacles that are arranged in a pattern and that respectively comprise a variable fluid,
- the variable fluid has a change in stiffness when one of an electric field and a magnetic field is generated between the upper electrode and the lower electrode, and
- when the one of the electric field and the magnetic field is generated, the stiffness of each of the variable stiffness films is increased using the variable fluid to hold a shape and when the one of the electric field and the magnetic field is removed using the variable fluid, the stiffness of each of the variable stiffness films returns to an original flexible state, and
- wherein the plurality of variable fluid receptacles of a first variable stiffness film of the variable stiffness films and the plurality of variable fluid receptacles of a second variable stiffness film of the variable stiffness films are arranged, at intermediate portions thereof, in directions different from each other.
8 more elements
A variable stiffness flexible touch sensor, comprising:
- a flexible display;
- a touch sensor;
- variable stiffness films disposed below the flexible display, each of the variable stiffness films comprising:
- a lower electrode;
- a variable fluid layer disposed on the lower electrode;
- and
- an upper electrode disposed on the variable fluid layer,
- wherein the variable fluid layer comprises a plurality of variable fluid receptacles that are arranged in a pattern and that respectively comprise a variable fluid,
- the variable fluid has a change in stiffness when one of an electric field and a magnetic field is generated between the upper electrode and the lower electrode, and
- when the one of the electric field and the magnetic field is generated, the stiffness of each of the variable stiffness films is increased using the variable fluid to hold a shape and when the one of the electric field and the magnetic field is removed using the variable fluid, the stiffness of each of the variable stiffness films returns to an original flexible state, and
- wherein the plurality of variable fluid receptacles of a first variable stiffness film of the variable stiffness films and the plurality of variable fluid receptacles of a second variable stiffness film of the variable stiffness films are arranged, at intermediate portions thereof, in directions different from each other.
8 more elements
Dependencies are inferred from the claim text.