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Materials of electronic paper micro-cup and preparation method

An electronic paper and microcup technology, applied in coating, optics, instruments and other directions, can solve the problems of high difficulty of molding process, fragile structure of microcup, easy to react, etc., and achieves easy mass production, simple method, low cost effect

Inactive Publication Date: 2010-04-21
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production and packaging of SiPix's microcups are based on precision molds. If you want to change the shape or size of the microcups, you need to remake the precision molds, which is costly and difficult to mold.
In addition, the microcup structure also has the problem of being fragile and easily reacting in the electrophoretic fluid system containing tetrachlorethylene.

Method used

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  • Materials of electronic paper micro-cup and preparation method
  • Materials of electronic paper micro-cup and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of the photolithographic electronic paper microcup material adopts the following process: get 50 grams of glass powder barium oxide (BaO) and pour it into a mortar, add Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol mono Isobutyrate) 20g, methyl methacrylate resin 25 grams, active ingredient photoinitiator 2-methyl-1-[4-methylthiophenyl]-2-morpholino-1-acetone 3g, disperse Agent BYK2025 2g, grind for 5-15 minutes.

[0028] The above-mentioned glass powder can be a granular body made by melting and pulverizing, and the glass powder whose particle size is less than 10 μm can also be prepared by using directly purchased glass powder. The same below.

[0029] The method for making a microcup pattern by using the above-mentioned photoetching type microcup material is as follows:

[0030] 1) Wash the polyethylene terephthalate (PET) substrate with deionized water and dry it at low temperature (baking at 60°C for 10 minutes);

[0031] 2) Print and co...

Embodiment 2

[0039] The preparation of photolithographic electronic paper microcup material adopts the following process: take glass powder boron oxide (B 2 o 3 ) 22 grams into the mortar, add Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol monoisobutyrate) 30g, methyl methacrylate resin 40 grams, active ingredient photoinitiator 2-methyl-1-[4-methylthiophenyl]-2-morpholino-1-propanone 4g, dispersant BYK140 4g, grind for 5-15 minutes.

[0040] The method for making a microcup pattern by using the above-mentioned photoetching type microcup material is as follows:

[0041] 1) The glass substrate is cleaned with isopropanol after ultrasonication with clean water;

[0042]2) Print and coat the above-mentioned microcup material on the substrate with electrode pattern by inkjet method;

[0043] 3) After baking at 90°C for 30 minutes, the coating layer is cured to form a film with a thickness of 10 μm;

[0044] 4) Continue to spray a layer of microcup material on the baked film-forming...

Embodiment 3

[0051] The preparation of the photolithographic electronic paper microcup material adopts the following process: get 56 grams of glass powder zinc oxide (ZnO) and pour it into a mortar, add Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol mono Isobutyrate) 10g, methyl methacrylate resin 15 grams, active ingredient photoinitiator 2-methyl-1-[4-methylthiophenyl]-2-morpholino-1-acetone 4g, disperse Agent BYK180 2g, antifoaming agent dimethyl polysiloxane 2g, grind for 5-15 minutes.

[0052] The method for making a microcup pattern by using the above-mentioned photoetching type microcup material is as follows:

[0053] 1) The glass substrate is cleaned with acetone after ultrasonication with clear water;

[0054] 2) Print and coat the above-mentioned microcup material on the substrate with electrode pattern by rolling coating;

[0055] 3) After baking at 100°C for 8 minutes, the coating layer is cured to form a film with a thickness of 5 μm;

[0056] 4) Continue to roll-c...

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Abstract

The invention relates to materials of an electronic paper micro-cup manufactured on a flexible or rigid substrate and a method for preparing the electronic paper micro-cup. In part by weight, the raw materials of the electronic paper micro-cup comprise 10 to 30 parts of solvents, 15 to 40 parts of resin, 3 to 6 parts of active components, 20 to 70 parts of glass filler and 1 to 4 parts of dispersant; and the coatings can further comprise 1 to 2 parts of defoamer dimethyl polysiloxane in part by weight. The method for preparing the electronic paper micro-cup comprises 1) a base material pretreating process, 2) a coating process, 3) a prebaking process, 4) a masking and exposing process, 5) a developing process and 6) a solidifying process. The method can manufacture a micro-cup figure withhigh resolution, also can simplify the manufacturing processes and reduce the preparation cost of the micro-cup, and is quite suitable for the manufacturing of the electronic paper micro-cup.

Description

technical field [0001] The invention relates to a material for making an electronic paper microcup on a flexible or rigid substrate and a preparation method thereof, in particular to a photolithographic microcup material that is resistant to strong soluble solvents such as tetrachlorethylene and is closely bonded to the substrate and its use Preparation. Background technique [0002] Electrophoretic display (Electrophoretic, E-Paper) is referred to as electronic paper. Compared with other display technologies, electrophoretic technology has the characteristics of low energy consumption, high daylight readability, low production cost, and is suitable for flexible display technology. Because its technology combines the advantages of ordinary paper and electronic displays, it has become the most likely technology to realize the industrialization of electronic paper. [0003] The basic principle of electrophoretic display is that in a small area (microcapsule or microcup), unde...

Claims

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Application Information

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IPC IPC(8): C09D133/10C09D7/12G02F1/167
Inventor 李驰
Owner IRICO
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