Electronic inks
AssigneeHewlett-Packard Development Company, L.P.
InventorsZhang-Lin Zhou, Jeffrey Todd Mabeck, Richard H. Henze
Life of this patent
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Abstract
Electronic inks are disclosed herein. The electronic ink includes a non-polar carrier fluid, a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid, and a plurality of reverse co-micelles including a basic charge director and an acidic charge controlling agent. The basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent.
Claims20
An electronic ink, comprising:
- a non-polar carrier fluid;
- a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid;
- and
- a plurality of negatively charged reverse co-micelles, each of which includes, as respective components, a basic charge director and an acidic charge controlling agent, wherein the basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent.
An electronic ink, comprising:
- a non-polar carrier fluid;
- a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid;
- and
- a plurality of reverse co-micelles including a basic charge director and an acidic charge controlling agent, wherein the basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent;
- wherein the acidic charge controlling agent is:
- wherein m= an integer from 3 to 150 and n= an integer from 6 to 18;
- and wherein the basic charge director is:
- wherein n is selected from a whole number ranging from 15 to 100.
A method for making an electronic ink, comprising:
- adding a plurality of colorant particles to a non-polar carrier fluid;
- and
- incorporating a basic charge director and an acidic charge controlling agent as respective components into the non-polar carrier fluid, the basic charge director having a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent, thereby forming a plurality of positively charged colorant particles and a plurality of negatively charged reverse co-micelles dispersed in the non-polar carrier fluid, each reverse co-micelle including the basic charge director and the acidic charge controlling agent as respective components.
An electronic device, comprising:
- a substrate;
- and
- at least one layer of an electronic ink established on the substrate, the electronic ink including:
- a non-polar carrier fluid;
- a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid;
- and
- a plurality of negatively charged reverse co-micelles, each of which includes, as respective components, a basic charge director and an acidic charge controlling agent, wherein the basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent.
The electronic device, comprising:
- a substrate;
- and
- at least one layer of an electronic ink established on the substrate, the electronic ink including:
- a non-polar carrier fluid
- a plurality of positively charged colorant particles dispersed in the non-polar carrier fluid;
- and
- a plurality of reverse co-micelles including a basic charge director and an acidic charge controlling agent, wherein the basic charge director has a molecular weight that is within 5000 of a molecular weight of the acidic charge controlling agent;
- wherein the acidic charge controlling agent is:
- wherein m= an integer from 10 to 150 and n= an integer from 6 to 12;
- and wherein the basic charge director is:
- wherein n is selected from a whole number ranging from 15 to 100.
Dependencies are inferred from the claim text.