Generic randomized mesh design
View Patent ↗In one embodiment, an apparatus may include a first mesh of conductive material covering an area corresponding to at least a portion of the touch sensor. The first mesh includes a number of mesh cells. Each of the mesh cells has a number of vertices. Each of the vertices has a substantially randomized location within an inner portion of one of a number of polygons. The polygons collectively and contiguously covers the area corresponding to at least a portion of the touch sensor. One or more dimensions of the polygons is based at least in part on a pre-determined distance threshold between one or more pairs of opposing vertices. The apparatus also includes a computer-readable non-transitory storage medium coupled to the touch sensor and embodying logic that is configured when executed to control the touch sensor.
1. An apparatus comprising:
a touch sensor comprising a first mesh of conductive material covering an area corresponding to at least a portion of the touch sensor, wherein the area is logically divided into a plurality of polygons of the first mesh that collectively contiguously cover the area, the first mesh comprising a plurality of mesh cells that are each defined by a plurality of vertices, each of the vertices having a substantially randomized location within a respective inner polygon of the first mesh, each inner polygon being within a respective one of a plurality of polygons of the first mesh, one or more dimensions of the polygons of the first mesh being based at least in part on the square root of one half of the square of a pre-determined distance threshold between one or more pairs of opposing vertices; and
a computer-readable non-transitory storage medium coupled to the touch sensor and embodying logic that is configured when executed to control the touch sensor.
2. The apparatus of claim 1 , wherein one or more of the dimensions of the inner polygons is determined at least in part on a pre-determined randomization value.
3. The apparatus of claim 1 , wherein a number of vertices along a first axis of a display underneath the touch sensor is determined at least in part by a dimension of the display along the first axis.
4. The apparatus of claim 3 , wherein a number of vertices along a second axis of the display is determined at least in part by a dimension of the display along the second axis, wherein the second axis is perpendicular to the first axis.
5. The apparatus of claim 3 , wherein a segment of conductive material coupling a pair of adjacent vertices are non-orthogonal relative to one or more pixels of the display.
6. The apparatus of claim 5 , wherein each vertex comprises conductive material coupling the segment of conductive material to the vertex at a substantially 90° angle.
7. The apparatus of claim 3 , wherein the first mesh is rotated by a pre-determined angle relative to the first axis.
8. The apparatus of claim 1 , wherein the touch sensor further comprises a second mesh of conductive material, the second mesh comprising a plurality of mesh cells that each have a plurality of vertices, each of the vertices being located within an inner portion within each mesh cell of the first mesh, the second mesh being separated from the first mesh by a thickness of a dielectric layer.
9. A touch sensor comprising:
a first mesh of conductive material covering an area corresponding to at least a portion of the touch sensor, the area is logically divided into a plurality of polygons of the first mesh that collectively contiguously cover the area, the first mesh comprising a plurality of mesh cells;
each of the mesh cells being defined by a plurality of vertices; and
each of the vertices having a substantially randomized location within a respective inner polygon of the first mesh, each inner polygon being within a respective one of a plurality of polygons of the first mesh, one or more dimensions of the polygons of the first mesh being based at least in part on the square root of one half of the square of a pre-determined distance threshold between one or more pairs of opposing vertices.
10. The touch sensor of claim 9 , wherein one or more of the dimensions of the inner polygons is determined at least in part on a pre-determined randomization value.
11. The touch sensor of claim 9 , wherein a number of vertices along a first axis of a display underneath the touch sensor is determined at least in part by a dimension of the display along the first axis.
12. The touch sensor of claim 11 , wherein a number of vertices along a second axis of the display is determined at least in part by a dimension of the display along the second axis, wherein the second axis is perpendicular to the first axis.
13. The touch sensor of claim 11 , wherein a segment of conductive material coupling a pair of adjacent vertices are non-orthogonal relative to one or more pixels of the display.
14. The touch sensor of claim 13 , wherein each vertex comprises conductive material coupling the segment of conductive material to the vertex at a substantially 90° angle.
15. The touch sensor of claim 11 , wherein the first mesh is rotated by a pre-determined angle relative to the first axis.
16. The touch sensor of claim 9 , wherein the touch sensor further comprises a second mesh of conductive material, the second mesh comprising a plurality of mesh cells that each have a plurality of vertices, each of the vertices being located within an inner portion within each mesh cell of the first mesh, the second mesh being separated from the first mesh by a thickness of a dielectric layer.
17. A method comprising:
by a computing device, determining a location and size of each of a plurality of polygons of a first conductive mesh, the polygons collectively and contiguously covering the area corresponding to at least a portion of a touch sensor, one or more dimensions of the polygons of the first conductive mesh being based at least in part on the square root of one half of the square of a pre-determined distance threshold between one or more pairs of opposing vertices;
by the computing device, determining a location and size of each of an inner polygon of the first conductive mesh within a respective one of the polygons; and
by the computing device, generating a pattern for the first conductive mesh of a touch sensor at least in part by determining a plurality of vertices of a plurality of mesh cells of the first conductive mesh, each of the vertices having a substantially randomized location within a respective inner polygon of the first conductive mesh within the respective one of a plurality of polygons of the first conductive mesh.
18. The method of claim 17 , wherein one or more of the dimensions of the inner polygons is determined at least in part on a pre-determined randomization value.
19. The method of claim 17 , wherein a number of vertices along a first axis of a display underneath the touch sensor is determined at least in part by a dimension of the display along the first axis.
20. The method of claim 19 , wherein a number of vertices along a second axis of the display is determined at least in part by a dimension of the display along the second axis, wherein the second axis is perpendicular to the first axis.