Electromechanical dynamic force profile articulating mechanism
View Patent ↗An electromechanical dynamic force profile articulating mechanism for recovering or emulating true parallel plate capacitor actuation behaviors from deformable membranes used in MEMS systems. The curved deformation of flexible membranes causes their MEMS behavior to deviate from known interactions between rigid plates that maintain geometric parallelism during ponderomotive actuation. The present invention teaches three methods for reacquiring parallel plate behavior: superaddition or in situ integration of a rigid region within or upon the deformable MEMS membrane; creation of isodyne regions to secure parallelism by altering the force profile upon the membrane by introducing tuned and shaped voids within the conductive region associated with the membrane; and a hybrid composite approach wherein the conductive region is deposited after deposition of a raised rigid zone, thereby emulating isodyne behavior due to the increased inter-conductor distance in the vicinity of the rigid zone, in conjunction with rigidity benefits stemming directly from said zone.
1. An apparatus, comprising:
a first conductor configured to selectively receive a first type of charge;
a second conductor configured to selectively receive a second type of charge wherein said first conductor and said second conductor are spaced apart during an uncharged state; and
a non-conductive hole situated in said second conductor wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed around said non-conductive hole.
2. The apparatus as recited in claim 1 , wherein when applying an electrical potential difference between said first conductor and said second conductor, said second conductor deforms and moves towards said first conductor.
3. The apparatus as recited in claim 1 , wherein said isodyne region is formed at the perimeter of said non-conductive hole.
4. The apparatus as recited in claim 1 , wherein the uniform electrical force in said isodyne region causes said second conductor to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
5. The apparatus as recited in claim 1 , further comprising a deformable elastic membrane, wherein said second conductor is deposited on said deformable elastic membrane such that movement of the second conductor causes concomitant movement of said deformable elastic membrane.
6. The apparatus as recited in claim 5 , wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed in said second conductor around said non-conductive hole, and the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
7. The apparatus as recited in claim 1 , further comprising a deformable elastic membrane, wherein said second conductor is embedded within said deformable elastic membrane.
8. The apparatus as recited in claim 7 , wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed in said second conductor around said non-conductive hole, and the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
9. An apparatus comprising:
a first conductor configured to selectively receive a first type of charge;
a second conductor configured to selectively receive a second type of charge, wherein said first conductor and said second conductor are parallel and spaced apart during an uncharged state; and
a non-conductive hole situated in said second conductor;
wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne is formed in said second conductor around said non-conductive hole.
10. The apparatus as recited in claim 9 , wherein the uniform electrical force in said isodyne region causes said second conductor to move towards said first conductor in a manner such that parallelism is maintained between said isodyne region and said first conductor.
11. The apparatus as recited in claim 9 , further comprising a deformable elastic membrane, wherein said second conductor is deposited on said deformable elastic membrane such that deformation of the second conductor causes concomitant deformation of said deformable elastic membrane.
12. The apparatus as recited in claim 11 , wherein the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that parallelism is maintained between said isodyne region and said first conductor.
13. The apparatus as recited in claim 9 , further comprising a deformable elastic membrane, wherein said second conductor is embedded within said deformable elastic membrane.
14. The apparatus as recited in claim 13 , wherein the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that parallelism is maintained between said isodyne region and said first conductor.
15. A display system, comprising:
a plurality of pixels on a display, wherein each of said plurality of pixels comprises:
a first conductor configured to selectively receive a first type of charge;
a second conductor configured to selectively receive a second type of charge, wherein said first conductor and said second conductor are spaced apart during an uncharged state; and
a non-conductive hole situated in said second conductor wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed around said non-conductive hole.
16. The display system as recited in claim 15 , wherein the uniform electrical force in said isodyne region causes said second conductor to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
17. The display system as recited in claim 15 , further comprising a deformable elastic membrane, wherein said second conductor is deposited on said deformable elastic membrane such that movement of the second conductor causes concomitant movement of said deformable elastic membrane.
18. The display system as recited in claim 17 , wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed in said second conductor around said non-conductive hole, and the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
19. The display system as recited in claim 15 , further comprising a deformable elastic membrane, wherein said second conductor is embedded within said deformable elastic membrane.
20. The display system as recited in claim 19 , wherein when applying an electrical potential difference between said first conductor and said second conductor an isodyne region is formed in said second conductor around said non-conductive hole, and the uniform electrical force in said isodyne region causes said deformable elastic membrane to move towards said first conductor in a manner such that said isodyne region is parallel to said first conductor.
21. The display system as recited in claim 15 , further comprising a rigid substrate, wherein said first conductor resides on said rigid substrate.
22. The display system as recited in claim 21 , wherein said rigid substrate is a planar waveguide.
23. The display system as recited in claim 15 , further comprising a plurality of standoff structures configured to position said second conductor in a spaced-apart relation to said first conductor.