Preparation method for color electrophoretic display membrane material and application of hollow-hole mask plate

A technology of color electrophoresis and display film, which is applied to the photoplate making process of the patterned surface, optical mechanical equipment, instruments, etc., can solve the problems that the thickness of the capsule layer cannot be accurately controlled, and the size of the mesh is limited, so as to achieve bright and bright images. The size is controllable to achieve the effect of industrial production

Active Publication Date: 2016-10-26
SUN YAT SEN UNIV
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  • Application Information

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Problems solved by technology

[0010] Therefore, the sub-pixel method is a good choice for the colorization of microcapsule electrophoretic display films, while the traditional screen printing and hollow mask printing processes are effective and feasible methods for coating microcapsules of each color in partitions. The mask printing process also has problems such as mesh size limitation and capsule layer thickness cannot be accurately controlled

Method used

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  • Preparation method for color electrophoretic display membrane material and application of hollow-hole mask plate
  • Preparation method for color electrophoretic display membrane material and application of hollow-hole mask plate
  • Preparation method for color electrophoretic display membrane material and application of hollow-hole mask plate

Examples

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Embodiment 1

[0040] A method for preparing a color electrophoretic display film material, and the application of a perforated mask plate in the preparation of a color electrophoretic display film layer. Microcapsules of different colors are respectively coated on a temporary substrate through the perforated mask plate, and then each color The microcapsules are sequentially transferred from the temporary substrate to the target substrate, so as to realize the color microcapsule electrophoretic display film with graphic nesting.

[0041] Specifically, the following steps are included:

[0042] (S1) Prepare microcapsule coating solutions of various colors;

[0043]Prepare red, green, and blue electrophoretic dispersions containing white charged particles respectively; respectively wrap the obtained electrophoretic dispersions into microcapsule display particles with a particle size of 40 μm; for example, the above-mentioned coating can be achieved by in-situ polymerization ; The organic poly...

Embodiment 2

[0057] The difference between this example and Example 1 is that the electrophoretic dispersion liquids of various colors are respectively wrapped into microcapsule display particles with a particle diameter of 10 μm; the inner diameter of the regular hexagonal pattern is 200 μm, and the height is 10 μm; other steps and parameter settings and implementation Example 1 is the same.

Embodiment 3

[0059] The difference between this example and Example 1 is that: the electrophoretic dispersion liquids of various colors are respectively wrapped into microcapsule display particles with a particle size of 100 μm; the inner diameter of the regular hexagonal pattern is 600 μm, and the height is 100 μm; other steps and parameter settings and implementation Example 1 is the same.

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Abstract

The invention provides a preparation method for a color electrophoretic display membrane material and application of a hollow-hole mask plate in preparation of a color electrophoretic display membrane layer. Microcapsules with different colors are coated on a temporary substrate by a hollow-hole mask plate; all microcapsules with different colors are transferred from the temporary substrate to a target substrate successively, thereby realizing a graph-nested color microcapsule electrophoretic display membrane material. According to the invention, the color microcapsule electrophoretic display membrane material is prepared by using a technology with hollow-hole mask printing and transferring firstly; and compared with the prior art, the provided method has higher practicability; preferably, the transferring material is polydimethylsiloxane being an elastic flexible material with low surface energy and the capsule layer can be transferred completely, so that the method can be applied to an embedded reel-to-reel process to realize large-scale production. The color microcapsule electrophoretic display membrane material prepared by the method has advantages of high reflectivity, high color contrast ratio, and embeddable reel-to-reel process; the preparation process is simple; and industrial production can be realized.

Description

technical field [0001] The present invention relates to the field of electrophoretic display, and more specifically, to a preparation method of a color electrophoretic display film material and an application of a perforated mask therein. Background technique [0002] Electrophoretic display technology (EFD) is one of the electronic display technologies with development potential due to the combination of the advantages of ordinary paper and electronic display. Electrophoretic displays are usually dual-color displays, which can only display two different colors. Therefore, the development of color electrophoretic display technology can not only meet people's demand for colorization, but also has great economic benefits, and color electronic paper is coming out soon. [0003] At present, the realization of colorization of electrophoretic display mainly includes: [0004] 1. Color filter film; 2. Control the electrophoretic speed of different pigments; 3. Add sub-pixels. ...

Claims

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Application Information

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IPC IPC(8): G02F1/167G03F7/00
CPCG02F1/167G03F7/0007
Inventor 王力陈鹏王毓成
Owner SUN YAT SEN UNIV
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