Back to results
US 8,508,680 B2Granted
Touch screen sensor with low visibility conductors
Assignee3M Innovative Properties Company
InventorsBernard O. Geaghan, Edward S. Hagermoser
Life of this patent
Estimating the term…
Abstract
A touch screen sensor with a conductive micropattern includes one or more features to obscure or reduce the visibility of the conductive micropattern.
Claims9
A touch screen sensor having a touch-sensitive surface comprising:
- within a touch sensing area, a electrically conductive micropattern disposed on or in a visible light transparent substrate, wherein the micropattern includes conductive traces with width between about 1 and 10 micrometers;
- and
- one or more light scattering elements in an optically continuous layer of substantially uniform optical density disposed between the micropattern and the touch-sensitive surface, and wherein the light scattering elements comprise microscopic features having a size greater than the width of the conductive traces.
Dependencies are inferred from the claim text.