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US 8,174,667 B2Granted
Nanowire-based transparent conductors and applications thereof
AssigneeCambrios Technologies Corporation
InventorsPierre-Marc Allemand, Haixia Dai, Shuo Na, Hash Pakbaz, Florian Pschenitzka, Xina Quan, Jelena Sepa, Michael A. Spaid, Jeffrey Wolk
Life of this patent
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Abstract
A transparent conductor including a conductive layer coated on a substrate is described. More specifically, the conductive layer comprises a network of nanowires that may be embedded in a matrix. The conductive layer is optically clear, patternable and is suitable as a transparent electrode in visual display devices such as touch screens, liquid crystal displays, plasma display panels and the like.
Claims12
A process comprising:
- forming a conductive film comprising a plurality of interconnecting nanostructures;
- and
- etching the conductive film according to a pattern to provide (1) an unetched region having a first resistivity, a first transmission and a first haze and (2) an etched region having a second resistivity, a second transmission and a second haze;
- and
- wherein the etched region is less conductive than the unetched region, a ratio of the first resistivity over the second resistivity is at least 1000;
- the first transmission differs from the second transmission by less than 5%;
- and the first haze differs from the second haze by less than 0.5%.
4 more elements
A process comprising:
- forming a conductive film comprising a plurality of interconnecting nanostructures;
- etching the conductive film according to a pattern to provide (1) an unetched region having a first intermediate resistivity, and (2) an etched region having a second intermediate resistivity, wherein a first ratio of the first intermediate resistivity over the second intermediate resistivity is less than 1000;
- and
- heating the conductive film such that the etched region has a first final resistivity and the unetched region has a second final resistivity, wherein a second ratio of the first final resistivity over the second final resistivity is at least 1000, and wherein the etched region and the unetched region are optically uniform.
1 more element
Dependencies are inferred from the claim text.