Preparation method of colourful electrophoresis disclosing solution for electronic ink display

A technology of color electrophoresis and electronic ink, which is applied in the field of preparation of color electrophoretic display liquid, can solve the problems of inconspicuous color contrast, easy sedimentation of electrophoretic particles, long response time, etc., and achieves easy separation process, simple and easy preparation process, low cost effect
CN101550288AInactive Publication Date: 2009-10-07BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2009-10-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a preparation method of colorful electrophoresis disclosing solution for electronic ink display. Using anti-solvent re-crystallization method to proceed re-crystallization on coloring agent to get coloring agent particle small particle diameter, simultaneity in the re-crystallization process, adding modifying agent to improve dispersion stabilization of particles and improve charge properties. Particle diameter of the prepared electrophoresis particles can reach 50 nm-300 nm, and colorful electrophoresis solution prepared by using the coloring agent particles has excellent dispersancy and charge properties, which can be used in electronic ink display and can also be used as raw materials for preparing electronic ink microcapsule capsule-core.
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Description

Technical field:

[0001] The invention relates to a preparation method of a color electrophoretic display liquid used for electronic ink display, and belongs to the fields of nanometer material preparation and surface modification. Background technique:

[0002] In recent years, electronic ink display, as a new type of display technology, has received extensive attention. Electronic ink display is realized by the movement of electrophoretic particles dispersed in the medium in the electric field, which requires the particles to have good dispersion stability and chargeability in the dispersion medium.

[0003] At present, there are mainly two methods for realizing electronic ink display, one is to wrap the electrophoretic display liquid in microcapsules, and the other is to directly use modified electrophoretic particles to prepare electrophoretic display liquid for electrophoretic display. This patent is aimed at the latter, inventing a method for preparing color electropho...

Claims

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