Touch screen sensor and patterned substrate having overlaid micropatterns with low visibility
First Claim
Patent Images
1. A touch screen sensor, comprising:
- a visible light transparent substrate; and
at least two overlaid conductive mesh micropatterns with two dimensional contiguous meshes comprising;
a first conductive mesh micropattern comprising linear traces defining a first open mesh of a repeating cell geometry disposed on or in the visible light transparent substrate, anda second conductive mesh micropattern comprising linear traces defining a second open mesh of a repeating cell geometry electrically isolated from the first conductive mesh micropattern oriented at a bias angle such that at least a portion of the linear traces of the second conductive mesh micropattern are non-parallel to the linear traces of the first conductive mesh micropattern; and
wherein the second conductive mesh micropattern overlays the first conductive mesh micropattern such that at least a portion of the second conductive mesh micropattern has a different cell geometry from the cell geometry of the first conductive mesh micropattern;
orat least a portion of the second conductive mesh micropattern has a different cell dimension from the cell dimension of the first conductive mesh micropattern;
or a combination thereof.
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Abstract
Presently described are articles such as antennas, EMI shields, and touch screen sensors as well as patterned substrates having overlaid micropatterns with low visibility. Also described are methods of determining the visibility of a patterned substrate. In one embodiment, a patterned substrate is described comprising a visible light transparent substrate; and at least two overlaid electrically conductive mesh micropatterns, wherein each mesh has a repeating cell geometry and the combination of overlaid micropatterns has a spatial contrast threshold at a distance of 30000 units of greater than −35 decibels.
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Citations
17 Claims
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1. A touch screen sensor, comprising:
- a visible light transparent substrate; and
at least two overlaid conductive mesh micropatterns with two dimensional contiguous meshes comprising; a first conductive mesh micropattern comprising linear traces defining a first open mesh of a repeating cell geometry disposed on or in the visible light transparent substrate, and a second conductive mesh micropattern comprising linear traces defining a second open mesh of a repeating cell geometry electrically isolated from the first conductive mesh micropattern oriented at a bias angle such that at least a portion of the linear traces of the second conductive mesh micropattern are non-parallel to the linear traces of the first conductive mesh micropattern; and wherein the second conductive mesh micropattern overlays the first conductive mesh micropattern such that at least a portion of the second conductive mesh micropattern has a different cell geometry from the cell geometry of the first conductive mesh micropattern;
orat least a portion of the second conductive mesh micropattern has a different cell dimension from the cell dimension of the first conductive mesh micropattern;
or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a visible light transparent substrate; and
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16. An electrically conductive article comprising:
- a visible light transparent substrate; and
at least two overlaid conductive mesh micropatterns with two dimensional contiguous meshes comprising;
a first conductive mesh micropattern comprising linear traces defining a first open mesh of a repeating cell geometry disposed on or in the visible light transparent substrate, anda second conductive mesh micropattern comprising linear traces defining a second open mesh of a repeating cell geometry electrically isolated from the first conductive mesh micropattern; and wherein the second conductive mesh micropattern overlays the first conductive mesh micropattern such that i) at least a portion of the linear traces of the second conductive mesh micropattern are non-parallel to the linear traces of first conductive mesh micropattern and oriented at a bias angle; and ii) at least a portion of the second conductive mesh micropattern has a different cell geometry than the first conductive mesh micropattern;
or iii) at least a portion of the second conductive mesh micropattern has a different cell dimension than the first conductive mesh micropattern;
or a combination thereof. - View Dependent Claims (17)
- a visible light transparent substrate; and
Specification