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US 12,181,768 B2Granted
Light-transmissive conductor with directional conductivity
AssigneeE Ink Corporation
InventorsRichard J. Paolini, Jr., Jay William Anseth
Life of this patent
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Abstract
Light-transmissive conductors including oriented conductors disposed in a light-transmissive polymer having a volume resistivity between 1×1010 ohm-cm and 1×104 ohm-cm. The oriented conductors typically have very high conductivity along their length. Light-transmissive conductors described herein are well-suited for front electrodes for electro-optic displays, especially elongated displays in the shape of ribbons, stripes, or rulers.
Claims1
A color-changing fiber comprising:
- a central conductive element;
- a layer of electro-optic media surrounding the central conductive element, the layer of electro-optic media comprising pigment particles in a solvent enclosed in microcapsules dispersed in a polymer binder;
- and
- an outer layer of light-transmissive conductor, the light-transmissive conductor including:
- a light-transmissive polymer doped with a salt, a polyelectrolyte, a polymer electrolyte, or a solid electrolyte and having a volume resistivity between 1×107 ohm-cm and 1×105 ohm-cm, and
- an oriented conductive element having an aspect ratio of greater than 10:1(length:
- width).
4 more elements
Dependencies are inferred from the claim text.