Component for fixing curvature of flexible device and deformation and fixing curvature method

Patent metadata

Field	Value
Publication number	US-9343213-B2
Application number	US-201414162768-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Jan 25, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

Provided is a component for fixing the curvature of a flexible device. The component includes a permanent magnet substrate and a magnetic substrate connect to the permanent magnet substrate. The permanent magnet substrate includes a first permanent magnet structure, and the magnetic substrate includes an electromagnet structure, a second permanent magnet structure, or a ferromagnetic material structure.

First claim

What is claimed is:

1. A component for fixing a curvature of a flexible device, comprising:
a permanent magnet substrate comprising a first permanent magnet structure; and
a magnetic substrate connects to the permanent magnet substrate, wherein the magnetic substrate comprises an electromagnet structure, a second permanent magnet structure, or a ferromagnetic material structure, and
both the permanent magnet substrate and the magnetic substrate are deformable or flexible through dislocation displacement caused by magnetic repulsion and attraction.

2. The component for fixing a curvature of a flexible device of claim 1 , further comprising:
a first contact layer between the permanent magnet substrate and the magnetic substrate, wherein the first contact layer is disposed on the permanent magnet substrate; and
a second contact layer between the first contact layer and the magnetic substrate, wherein the second contact layer is disposed on the magnetic substrate.

3. The component for fixing a curvature of a flexible device of claim 2 , wherein a surface of the first contact layer contacted to the second contact layer comprises a roughened surface, a zigzag surface, a three-dimensional pattern, or an array thereof.

4. The component for fixing a curvature of a flexible device of claim 2 , wherein a surface of the second contact layer contacted to the first contact layer comprises a roughened surface, a zigzag surface, a three-dimensional pattern, or an array thereof.

5. The component for fixing a curvature of a flexible device of claim 2 , wherein contact surfaces between the first contact layer and the second contact layer are engaged with each other.

6. The component for fixing a curvature of a flexible device of claim 1 , further comprising a driving circuit linked to the electromagnet structure to lock or release the permanent magnet substrate and the magnetic substrate.

7. The component for fixing a curvature of a flexible device of claim 1 , wherein the electromagnet structure, the second permanent magnet structure, or the ferromagnetic material structure comprises a single-layer structure or an array formed by a plurality of single magnetic components.

8. The component for fixing a curvature of a flexible device of claim 1 , wherein a rigidity of the first or second permanent magnet structure comprises soft or rigid.

9. The component for fixing a curvature of a flexible device of claim 1 , wherein the first or second permanent magnet structure comprises a single-layer structure or is formed by a plurality of permanent magnets.

10. The component for fixing a curvature of a flexible device of claim 1 , wherein the electromagnet structure, the second permanent magnet structure, or the ferromagnetic material structure in the magnetic substrate is a patterned structure having a corresponding relationship with the first permanent magnet structure.

11. The component for fixing a curvature of a flexible device of claim 1 , wherein the permanent magnet substrate further comprises a plurality of electromagnets therein, and the electromagnets and the electromagnet structure in the magnetic substrate form an array.

12. The component for fixing a curvature of a flexible device of claim 1 , further comprising an active deformation component located on one side of the permanent magnet substrate or the magnetic substrate.

13. The component for fixing a curvature of a flexible device of claim 12 , wherein the active deformation component comprises an electrically actuated component or a shape-memory material.

14. The component for fixing a curvature of a flexible device of claim 13 , wherein the electrically actuated component comprises an electroactive polymer (EAP) component, a vanadium dioxide component, or an electronic muscle.

15. The component for fixing a curvature of a flexible device of claim 13 , wherein the shape-memory material comprises a spring or a shape-memory alloy.

16. A manual deformation and fixing curvature method of the component of claim 1 , comprising:
pushing the component for fixing a curvature of a flexible device;
detecting a force applied and determining whether the force applied or an amount of deformation caused by the force applied is greater than a threshold value;
driving the electromagnet structure in the magnetic substrate to release the permanent magnet substrate and the magnetic substrate if the force applied or the amount of deformation is greater than the threshold value, and detecting the force applied or the amount of deformation repeatedly; and
stopping driving the electromagnet structure to lock the permanent magnet substrate and the magnetic substrate if the force applied or the amount of deformation is not greater than the threshold value.

17. The method of claim 16 , wherein a step of the detecting comprises using an acceleration sensor, a displacement sensor, a bending sensor, or a curved surface sensor.

18. An automatic deformation and fixing curvature method of the component of claim 1 , comprising:
triggering the component for fixing the curvature of the flexible device;
driving the electromagnet structure in the magnetic substrate to release the permanent magnet substrate and the magnetic substrate and drive the electromagnet structure through magnetic repulsion and attraction so as to generate dislocation displacement;
deforming the component for fixing the curvature of the flexible device; and
stopping diving the electromagnet structure to lock the permanent magnet substrate and the magnetic substrate.

19. The method of claim 18 , wherein a step of the triggering comprises triggering via a program or triggering via a button.

20. An automatic deformation and fixing curvature method of the component of claim 1 , comprising:
triggering the component for fixing the curvature of the flexible device;
detecting a deformation of the component for fixing the curvature of the flexible device to determine whether the deformation is less than a threshold value;
driving an electromagnet structure in a magnetic substrate to release the permanent magnet substrate and the magnetic substrate if the deformation is less than the threshold value, and detecting the deformation repeatedly; and
stopping driving the electromagnet structure to lock the permanent magnet substrate and the magnetic substrate if the deformation is not less than the threshold value.

21. The method of claim 20 , wherein a step of the triggering comprises triggering via a program or triggering via a button.

22. The method of claim 20 , wherein a step of the detecting comprises using an acceleration sensor, a displacement sensor, a bending sensor, or a curved surface sensor.

23. A component for fixing a curvature of a flexible device, comprising:
a permanent magnet substrate comprising a first permanent magnet structure; and
a magnetic substrate connects to the permanent magnet substrate, wherein the magnetic substrate comprises an electromagnet structure, a second permanent magnet structure, or a ferromagnetic material structure, and
both the permanent magnet substrate and the magnetic substrate are deformable or flexible through dislocation displacement caused by magnetic repulsion and attraction, wherein the curvature of the flexible device is determined by a relative position between the first permanent magnet structure and the magnetic substrate.

Assignees

• Ind Tech Res Inst

Inventors

• Peng yi-cheng
• Zhu Yi-Ming

Classifications

• H01F7/0215 Primary

  Flexible forms, sheets · CPC title