Electronic ink microcapsule and manufacture method of electronic ink microcapsule

An electronic ink and microcapsule technology, applied in the directions of microcapsule preparation, microsphere preparation, ink, etc., to avoid deterioration, improve barrier properties, avoid shrinkage cavities and prevent the backplane from being wetted.

Active Publication Date: 2012-08-29
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is to provide an electronic ink microcapsule for the above-mentioned defects in the prior art. During the process, it is not easy to cause defects such as shrinkage cavity, which can improve the product yield of the display

Method used

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  • Electronic ink microcapsule and manufacture method of electronic ink microcapsule
  • Electronic ink microcapsule and manufacture method of electronic ink microcapsule
  • Electronic ink microcapsule and manufacture method of electronic ink microcapsule

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] a. the hydrolyzate of sodium carboxymethylcellulose and styrene-maleic anhydride-hexafluorobutyl methacrylate-vinyl triethoxysilane tetrapolymer in a mass ratio of 1:1 is added to water, and Dissolve it completely at a temperature of 40°C to form a solution;

[0074] b. adding the gelatin aqueous solution to the solution obtained in step a to form a mixed solution, wherein the mass ratio of gelatin to sodium carboxymethylcellulose is 0.5:1;

[0075] c. Add the electrophoretic suspension to the mixed solution obtained in step b, and stir until an O / W emulsion is formed, wherein the electrophoretic suspension is mixed with gelatin, sodium carboxymethylcellulose and styrene-maleic anhydride-methacrylic acid The mass ratio of the hydrolyzate of hexafluorobutyl-vinyltriethoxysilane tetrapolymer is 100:1;

[0076] d. Adding hydrochloric acid with a concentration of 0.05% by mass, the pH value of the emulsion is adjusted to 2, and gelatin, sodium carboxymethylcellulose and st...

Embodiment 2

[0080] a. the hydrolyzate of sodium carboxymethylcellulose and styrene-maleic anhydride-hexafluorobutyl methacrylate-vinyl triethoxysilane tetrapolymer in a mass ratio of 20:1 is added to water, and Dissolve it completely at a temperature of 40°C to form a solution;

[0081] b. adding the gelatin aqueous solution to the solution obtained in step a to form a mixed solution, wherein the mass ratio of gelatin to sodium carboxymethylcellulose is 5:1;

[0082] c. Add the electrophoretic suspension to the mixed solution obtained in step b, and stir until an O / W emulsion is formed, wherein the electrophoretic suspension is mixed with gelatin, sodium carboxymethylcellulose and styrene-maleic anhydride-methacrylic acid The mass ratio of the hydrolyzate of hexafluorobutyl ester-vinyltriethoxysilane tetrapolymer is 60:1;

[0083]d. Adding hydrochloric acid with a concentration of 0.5% by mass, the pH value of the emulsion is adjusted to 3, and gelatin, sodium carboxymethylcellulose and ...

Embodiment 3

[0087] a. the hydrolyzate of sodium carboxymethylcellulose and styrene-maleic anhydride-hexafluorobutyl methacrylate-vinyl triethoxysilane tetrapolymer in a mass ratio of 50:1 is added to water, and Dissolve it completely at a temperature of 40°C to form a solution;

[0088] b. adding the gelatin aqueous solution to the solution obtained in step a to form a mixed solution, wherein the mass ratio of gelatin to sodium carboxymethylcellulose is 20:1;

[0089] c. Add the electrophoretic suspension to the mixed solution obtained in step b, and stir until an O / W emulsion is formed, wherein the electrophoretic suspension is mixed with gelatin, sodium carboxymethylcellulose and styrene-maleic anhydride-methacrylic acid The mass ratio of the hydrolyzate of hexafluorobutyl ester-vinyltriethoxysilane tetrapolymer is 20:1;

[0090] d. adding hydrochloric acid with a mass percent concentration of 2%, the pH value of the emulsion is adjusted to 4, and gelatin, sodium carboxymethylcellulose...

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Abstract

The invention provides an electronic ink microcapsule and a manufacture method of the electronic ink microcapsule. The electronic ink microcapsule comprises gelatin, polyanions and electrophoresis suspending liquid, wherein the polyanions are hydrolysates of styrene-maleic anhydride-methylic hexafluorobutyl acrylate-vinyltriethoxysilane quadripolymers. The electronic ink microcapsule has the advantages that the defects that adhesives coated on the surface of a back plate generate shrinkage holes and the back plate cannot be moistened can be avoided, and the qualified rate of products is further improved; and meanwhile, the heat stability and the chemical stability of the capsule wall of the microcapsule can be improved, further, the barrier performance of the microcapsule on the electrophoresis suspending liquid is improved, and in addition, the deterioration of electrophoresis particles and dye can be avoided.

Description

technical field [0001] The invention belongs to the technical field of electrophoretic display, and relates to an electronic ink microcapsule and its [0002] Production Method. Background technique [0003] With the advancement of information science and technology, flat panel display technology is gradually developing in the direction of thinness, low power consumption, and low driving voltage. Among them, the electrophoretic display technology, especially the microcapsule electrophoretic display technology has been developed rapidly. [0004] Microcapsule electrophoretic display technology is a reflective display technology based on the electrophoretic phenomenon of charged particles suspended in the dispersion medium. It has the following characteristics: First, after the microcapsules are mixed with the liquid binder, they can be Ink printing, brushing, etc. are applied to the backplane, so the microcapsule electrophoretic display technology is suitable for flexible d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/14C09D11/00G02F1/167
CPCB01J13/10B01J13/206C09D11/10
Inventor 舒适赵明薛建设田肖雄孙雯雯
Owner BOE TECH GRP CO LTD
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