Silver nanostructure-based optical stacks and touch sensors with UV protection
View Patent ↗Disclosed herein are optical stacks that are stable to light exposure by incorporating one or more UV-blocking layers.
1. A touch sensor comprising:
a first basic transparent conductor having a first substrate and a first plurality of networking silver nanostructures;
an OCA layer;
a second basic transparent conductor having a second substrate and a second plurality of networking silver nanostructures; and
a third substrate,
wherein the third substrate has a surface that receives incident light and touch input,
wherein the second basic transparent conductor is more proximate to the incident light than the first basic transparent conductor, and
wherein the second substrate is a UV-blocking layer.
2. The touch sensor of claim 1 wherein the first basic transparent conductor is bonded with the second basic transparent conductor by a second OCA layer.
3. The touch sensor of claim 1 wherein the second substrate is more proximate to the incident light than the second plurality of networking silver nanostructures.
4. The touch sensor of claim 1 wherein the third substrate is glass.
5. The touch sensor of claim 1 wherein the OCA layer is positioned between the third substrate and the second substrate.
6. The touch sensor of claim 1 further comprising a frame positioned within a periphery of the touch sensor between the third substrate and the second substrate.
7. The touch sensor of claim 6 wherein the OCA layer is in contact with the third substrate, the second substrate, and the frame.
8. The touch sensor of claim 7 wherein the frame is spaced apart from the second substrate by the OCA layer.
9. The touch sensor of claim 6 wherein the frame is spaced apart from the second substrate by the OCA layer.
10. The touch sensor of claim 1 further comprising a second OCA layer positioned between the first substrate and the second substrate.
11. The touch sensor of claim 10 wherein the second OCA layer is in contact with the second plurality of networking silver nanostructures and the first substrate.
12. The touch sensor of claim 10 wherein the second OCA layer is spaced apart from the first plurality of networking silver nanostructures by the first substrate.
13. The touch sensor of claim 1 , further comprising:
a display layer; and
a second OCA layer positioned between the display layer and the first basic transparent conductor.
14. The touch sensor of claim 1 wherein the first substrate is more proximate to the incident light than the first plurality of networking silver nanostructures.
15. The touch sensor of claim 14 wherein the second substrate is more proximate to the incident light than the second plurality of networking silver nanostructures.
16. The touch sensor of claim 15 further comprising a second OCA layer, wherein the OCA layer is more proximate to the incident light than the second substrate and wherein the second OCA layer is more proximate to the incident light than the first substrate.