Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: A photochromic article is provided, containing a structural component, a fluid in contact with the structural component, and a polyoxometalate complex in contact with the fluid. The polyoxometalate complex includes a counter cation complexed with either a polyoxometalate anion or a polyoxometalate derivative anion. The structural component includes a porous material, a plurality of cavities, or both. The article is photochromic. A method of changing a light transmission of a photochromic article is provided, as is a method of changing a light reflectance of a photochromic article. A method of forming a photochromic article is also provided.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: A touch sensor is provided that includes a transparent, insulating substrate and at least one U-shaped electrically conductive micromesh that includes traces disposed on the substrate. The traces include an elemental metal or an alloy of elemental metal. The touch sensor may be configured to determine a location and a magnitude of a force of a touch.

Abstract: A continuously electrically conductive electrode including an electrically conductive first mesh repeating across the electrode to form a two-dimensional regular array of the first mesh is described. The first mesh includes a plurality of conductive closed cells, each closed cell including a plurality of vertices connecting a plurality of electrically conductive traces. The electrode may also include an electrically conductive second mesh different from the first mesh and including a plurality of conductive closed cells, each closed cell including a plurality of vertices connecting a plurality of electrically conductive traces. A majority of the closed cells in at least one of the first and second meshes have irregularly arranged vertices.

Abstract: A composite article having a conductive layer on at least a portion of a flexible substrate. Electrical connectivity between various portions of the substrate can be obtained through this conductive layer. The conductive layer comprises a conductive surface, and there is a patterned layer on at least a portion of a first region of the conductive surface. The patterned layer comprises a conductive material having a surface roughness, and is in electrical contact with the conductive surface. An overcoat layer is present on at least a portion of the first region, such that the overcoat layer has a thickness less than the surface roughness, such that the conductive layer within the first region is covered by the overcoat layer, and such that at least a portion of the patterned layer substantially protrudes above the overcoat layer.

Abstract: Conductive articles include an electrically insulating substrate with conductive regions on the substrate, the conductive regions are conductive patterns of a transparent conductor and a resist matrix. The substrate also has non-conductive regions, and exposed conductive contacts, where the conductive contacts are in electrical contact with the conductive regions. The non-conductive regions are formed by selective chemical etching of the transparent conductor coating, where the selective etching does not remove the conductive patterns or conductive contact.

Abstract: A multi-layer touch panel having an upper and a lower electrode that cross over one another. The electrode pattern for either electrode at the cross over area is complementary to the other electrode at the cross over area.

Abstract: Electromagnetic interference (EMI) shielding composites with high-loading-level ceramic beads and methods of making and using the same are described. The composites include high-loading-level of ceramic beads distributed inside a polymer matrix. The ceramic beads have a substantially spherical shape. The ceramic beads are formed by melting ceramic powders or particles. In some cases, the ceramic beads include ferrite beads.

Abstract: The present disclosure provides an article having a substrate having a first nanostructured surface and an opposing second surface; and a conductor micropattern disposed on the first surface of the substrate, the conductor micropattern formed by a plurality of traces. The micropattern may have an open area fraction greater than 80%. The traces of the conductor micropattern may have a specular reflectance in a direction orthogonal to and toward the first surface of the substrate of less than 50%. The nanostructured surface may include nanofeatures having a height from 50 to 750 nanometers, a width from 15 to 200 nanometers, and a lateral spacing from 5 to 500 nanometers. The articles are useful in devices such as displays, in particular, touch screen displays useful for mobile hand held devices, tablets and computers. They also find use in antennas and for EMI shields.

Abstract: An optical construction includes a reflective polarizer layer having a first pass axis and an absorptive polarizer layer having a second pass axis that is substantially aligned with the first pass axis. At least one electrically conductive light scattering layer is arranged between the reflective polarizer layer and the absorptive polarizer layer.

Abstract: The present disclosure provides an article having a conductor micropattern disposed on a major surface of a substrate. The conductor micropattern includes a plurality of curved traces defining a plurality of cells not lying on a repeating array. The conductor micropattern may have a uniform distribution of trace orientation. The conductor micropattern may be a tri-layer material including in sequence a semi-reflective metal, a transparent layer, and a reflective layer disposed on the transparent layer. The articles are useful in devices such as displays, in particular, touch screen displays useful for mobile hand held devices, tablets and computers. They also find use in antennas and for EMI shields.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.

Abstract: A method of patterning a conductive layer to form transparent electrical conductors that does not require etching is disclosed. The method includes peeling a strippable polymer layer from a substrate coated with the conductive layer to pattern the conductive layer. In some embodiments, a resist matrix material is patterned over the conductive layer to prevent removal of the conductive layer beneath the resist matrix material. In other embodiments, a liner having a pressure sensitive adhesive surface is brought into contact with the patterned strippable polymer material to remove both the patterned strippable polymer material and the conductive layer beneath it.

Abstract: An optical construction includes a reflective polarizer layer having a first pass axis and an absorptive polarizer layer having a second pass axis that is substantially aligned with the first pass axis. At least one electrically conductive light scattering layer is arranged between the reflective polarizer layer and the absorptive polarizer layer.

Abstract: A method of patterning a conductive layer to form transparent electrical conductors that does not require etching is disclosed. The method includes peeling a strippable polymer layer from a substrate coated with the conductive layer to pattern the conductive layer. In some embodiments, a resist matrix material is patterned over the conductive layer to prevent removal of the conductive layer beneath the resist matrix material. In other embodiments, a liner having a pressure sensitive adhesive surface is brought into contact with the patterned strippable polymer material to remove both the patterned strippable polymer material and the conductive layer beneath it.

Abstract: A method includes unwinding a web material from a support and providing an elastomeric stamp, wherein the stamp includes a base surface and an arrangement of pattern elements extending away from the base surface, and wherein each pattern element has a stamping surface with a lateral dimension of less than about 5 microns and a height with respect to the base surface, and wherein an aspect ratio of the height to the lateral dimension is at least 1.5. The stamping surfaces of the pattern elements are inked with an ink composition including a functionalizing molecule, wherein the functionalizing molecule includes a functional group selected to bind to said substrate material.

Abstract: A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value.