Controlled polymeric material conductivity for use in a two-phase electrode layer
US-9529240-B2 · Dec 27, 2016 · US
Methods for making two-phase light-transmissive electrode layer with controlled conductivity
US10795221B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10795221-B2 |
| Application number | US-201816181857-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 6, 2018 |
| Priority date | Jan 17, 2014 |
| Publication date | Oct 6, 2020 |
| Grant date | Oct 6, 2020 |
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- Title
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Abstract
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A method of making a two-phase light-transmissive electrode layer comprising a first phase made of a highly electronically-conductive matrix and a second phase made of a polymeric material composition having a controlled volume resistivity.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of making a two-phase light-transmissive electrode layer for incorporation into an electro-optic assembly, the method comprising: coating a composition comprising a light-transmissive polymeric material and a conductive additive onto a substrate, the substrate contacting a highly electronically-conductive matrix; and drying the composition to create a two-phase light-transmissive electrode layer. 2. The method of claim 1 , further comprising roll milling the composition comprising the light-transmissive polymeric material and the conductive additive prior to coating. 3. The method of claim 1 , further comprising removing the substrate after drying to produce a light-transmissive two-phase electrode layer without a substrate. 4. The method of claim 1 , wherein the conductive additive is a salt, a polyelectrolyte, a polymer electrolyte, or a solid electrolyte. 5. The method of claim 1 , wherein the conductive additive is polyethylene glycol. 6. The method of claim 1 , wherein the volume resistivity of the composition comprising a light-transmissive polymeric material and a conductive additive is 1×10 7 to 1×10 12 Ohm-cm. 7. The method of claim 1 , wherein the highly electronically-conductive matrix comprises carbon nanotubes, silver nanowires, a metal coated open foam structure, or a printed mesh of wires. 8. The method of claim 1 , wherein the light-transmissive polymeric material comprises a polyurethane, a vinyl acetate, a vinyl acetate ethylene, an epoxy, or a polyacrylic. 9. The method of claim 1 , wherein the light-transmissive polymeric material comprises a conductive polymer selected from PEDOT-PSS, polyacetylene, polyphenylene sulfide, and polyphenylene vinylene. 10. The method of claim 1 , wherein the substrate is a polymeric film having a thickness in the range of about 1 to about 25 mil (25 to 634 μm).
Assignees
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Classifications
- G02F1/167Primary
by electrophoresis · CPC title
using a solid electrolyte · CPC title
Micro- or nanomaterials · CPC title
- G02F1/13439Primary
characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title
Electrodes · CPC title
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- What does patent US10795221B2 cover?
- A method of making a two-phase light-transmissive electrode layer comprising a first phase made of a highly electronically-conductive matrix and a second phase made of a polymeric material composition having a controlled volume resistivity.
- Who is the assignee on this patent?
- E Ink Corp
- What technology area does this patent fall under?
- Primary CPC classification G02F1/167. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 06 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).