Pigment particle applied to electrophoretic display, and electrophoretic display unit

A technology of electrophoretic display and pigment particles, which is applied in the direction of organic dyes, fibrous fillers, dyeing polymer organic compounds, etc., to achieve the effect of good stability and good optical performance

Active Publication Date: 2018-05-22
GUANGZHOU OED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The ways to realize electronic paper technology mainly include cholesteric liquid crystal display technology, electrophoretic display technolog

Method used

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  • Pigment particle applied to electrophoretic display, and electrophoretic display unit
  • Pigment particle applied to electrophoretic display, and electrophoretic display unit
  • Pigment particle applied to electrophoretic display, and electrophoretic display unit

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Embodiment Construction

[0017] Below and specific embodiment technical scheme of the present invention is described in further detail, so that those skilled in the art can better understand the present invention and can implement, but the embodiment that is cited is not as limitation of the present invention.

[0018] This embodiment provides a pigment particle applied to electrophoretic display, including pigment particles and an organic modification layer formed on the surface of the pigment particle; the organic modification layer is a surfactant layer or a polymer material formed on the surface of the pigment particle layer; in electrophoretic display, in many cases, there will be two or more particles with different surface charges coexisting in a solution, and at least two different particles have opposite surface charges, that is, one particle has One particle has a positive charge, and the other particle has a negative charge, so there is a strong electrostatic attraction between the two parti...

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PUM

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Abstract

The invention provides a pigment particle. The pigment particle comprises a pigment granule and an organic modified layer formed on the surface of the pigment granule; the organic modified layer is asurfactant layer or a polymer material layer formed on the surface of the pigment granule; and the organic matter content per unit surface area of the pigment granule, Wsurf, is in the range of 0.1-2% g/m<2>. The pigment particle has a good stability, and an electrophoretic display produced from the pigment particle has good optical performances.

Description

technical field [0001] The invention relates to the technical field of electrophoretic display, in particular to a pigment particle and an electrophoretic display unit applied to electrophoretic display. Background technique [0002] E-paper, a "paper-thin, flexible, rewritable display," is increasingly used in everyday applications. The ways to realize electronic paper technology mainly include cholesteric liquid crystal display technology, electrophoretic display technology (EPD) and electrowetting display technology, etc., but only electrophoretic display technology can realize bistable state and mass production. The principle of electrophoretic display is that different kinds of particles are dispersed in a liquid, and the particles can have a charged surface or a neutral surface without charge. In the case of an external electric field, the particles with charges on the surface will move in a specific direction under the force of the electric field. For example, the pa...

Claims

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Application Information

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IPC IPC(8): C09C1/00C09C3/10C09B67/08G02F1/167
CPCG02F1/167C09B67/0013C09C1/00C09C3/10C01P2006/22C01P2006/12C01P2004/62G02F2001/1678C09C1/3676C01P2006/62C01P2006/63C01P2006/64C01P2006/60C08F292/00
Inventor 曾晞陈宇柏宇豪黄金浪
Owner GUANGZHOU OED TECH INC
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