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Polymer-doped electrophoretic ink with fast response and bistable state

A fast-response, polymer technology, applied in ink, applications, household appliances, etc., can solve problems such as poor stability of electronic ink and slow response speed of electrophoretic display devices

Pending Publication Date: 2022-02-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, this application provides a polymer-doped electrophoretic ink, electronic paper and electrophoretic display device with both fast response and bistable state, which can effectively solve the problem of poor stability of electronic ink in traditional electronic paper, which is difficult to use in electrophoretic display devices. The technical flaw of the slow response

Method used

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  • Polymer-doped electrophoretic ink with fast response and bistable state
  • Polymer-doped electrophoretic ink with fast response and bistable state
  • Polymer-doped electrophoretic ink with fast response and bistable state

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Embodiment 1

[0071] The embodiment of the present application provides a polymer-doped electrophoretic ink with both fast response and bistable state, including:

[0072] 20% by mass percentage of black particle iron oxide, 20% by mass percentage of white particle titanium dioxide, 1% by mass percentage of charge control agent (span80), 0.1% by mass percentage of 12-hydroxystearic acid (12- HSA) and the isoparaffin solvent IsoparL with a mass percentage of 58.9% were mixed to prepare an electrophoretic display polymer.

[0073] The electronic paper is prepared by using the above-mentioned polymer with both fast response and bistable state as electronic ink by using existing conventional methods. The electronic paper is connected with a micro temperature regulating device to form an electronic paper display device. The electronic paper prepared by the polymer with both fast response and bistable state in this embodiment was tested for voltage intensity changes at different temperatures, and ...

Embodiment 2

[0076] The embodiment of the present application provides a polymer-doped electrophoretic ink with both fast response and bistable state, including:

[0077] 5% by mass percent of black particle iron oxide, 5% by mass percent of white particle titanium dioxide, 1% by mass percent of charge control agent (span80), 0.1% by mass percent of 12-hydroxystearic acid (HSA) Mix with isoparaffin solvent IsoparL with a mass percentage of 88.9% to prepare an electrophoretic display polymer.

[0078] The electronic paper is prepared by using the above-mentioned polymer with both fast response and bistable state as electronic ink by using existing conventional methods. The electronic paper is connected with a micro temperature control device to form an electronic paper display device. The electronic paper prepared by the polymer with both fast response and bistable state in this embodiment was tested for voltage intensity changes at different temperatures, and the results were as follows: ...

Embodiment 3

[0081] The embodiment of the present application provides a polymer-doped electrophoretic ink with both fast response and bistable state, including:

[0082] 5% by mass percent of black particle iron oxide, 5% by mass percent of white particle titanium dioxide, 0.1% by mass percent of charge control agent (span80), 0.1% by mass percent of 12-hydroxystearic acid (HSA) and an isoparaffin solvent IsoparL mixture with a mass percentage of 89.8%, to prepare an electrophoretic display polymer.

[0083] The electronic paper is prepared by using the above-mentioned polymer with both fast response and bistable state as electronic ink by using existing conventional methods. The electronic paper is connected with a micro temperature control device to form an electronic paper display device. The electronic paper prepared by the polymer with both fast response and bistable state in this embodiment was tested for voltage intensity changes at different temperatures, and the results were as ...

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Abstract

The invention belongs to the field of electrophoretic display, and particularly relates to polymer-doped electrophoretic ink with quick response and bistable state. The invention provides polymer-doped electrophoretic ink. The polymer-doped electrophoretic ink comprises electrophoretic particles, an electrophoretic medium, a charge control agent and thermal reversible gel, wherein the thermal reversible gel is selected from gel with a low critical solution temperature characteristic or / and gel with a high critical phase transition temperature characteristic. The thermal reversible gel realizes crosslinking through intermolecular interactions such as covalent bond interaction, hydrogen bond interaction, hydrophobic interaction, Van der Waals force and pi-pi accumulation, and constructs a three-dimensional network structure in an electrophoretic display polymer system; under the action of temperature, the interaction of thermal reversible gel molecules can also be reversibly broken; therefore, the three-dimensional structure is destroyed, the viscosity is reduced, the thermal reversible gel spontaneously changes in an electrophoretic display polymer system, and the reversible adjustment of the viscosity is realized. The invention provides the electrophoretic display ink with bistable state and quick response performance.

Description

technical field [0001] The present application belongs to the field of electrophoretic display, and in particular relates to a polymer-doped electrophoretic ink with fast response and bistable state. Background technique [0002] Liquid crystal displays are currently dominant in the market. However, the existing displays are inconvenient to carry and rely on electric energy. The display device itself basically does not have the function of information storage, which is a common defect of various display devices that have been commercialized. People have been looking forward to a display material that has both the characteristics of paper and electronic display devices, which is convenient, fast, economical and practical. Thus, the concept of electronic paper came into being. [0003] A very remarkable advantage of e-paper is image retention. That is, the final image can be maintained for a long time without power supply. Only when the displayed image needs to be changed, ...

Claims

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Application Information

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IPC IPC(8): C09D11/03C09D11/14C09D11/107C09D11/102C09D11/108C09D11/10G02F1/167G02F1/1685
CPCC09D11/03C09D11/14C09D11/107C09D11/102C09D11/108C09D11/10G02F1/167G02F1/1685
Inventor 杨柏儒杨明阳秦宗胡文杰刘广友曾正舒豪
Owner SUN YAT SEN UNIV
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