CN102310023A - Manufacture method of microcapsule display panel - Google Patents
Manufacture method of microcapsule display panel Download PDFInfo
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- CN102310023A CN102310023A CN2010102131517A CN201010213151A CN102310023A CN 102310023 A CN102310023 A CN 102310023A CN 2010102131517 A CN2010102131517 A CN 2010102131517A CN 201010213151 A CN201010213151 A CN 201010213151A CN 102310023 A CN102310023 A CN 102310023A
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Abstract
The invention relates to a microcapsule display panel and a manufacture method thereof. The manufacture method comprises the following steps of: (a) coating coating liquid containing a display microcapsule on a substrate by adopting a scraper coating device; and (b) subjecting the substrate carrying the microcapsule coating to a vibrating device so that the microcapsule layer is even and dense. By adopting the method disclosed by the invention, the thickness of the microcapsule coating can be precisely controlled, the microcapsule arrangement is dense and ordered, and the continuous or discontinuous favorable microcapsule coating and display panel are obtained.
Description
Technical field
The present invention relates to coating process, be specifically related to a kind of manufacturing approach of microcapsules display floater.
Background technology
Electrophoretic display technology has been owing to combined the advantage of plain paper and electronic console, thereby is the technology that most possibly realizes the electronic paper industrialization.It is shown one's talent from numerous Display Techniques at present, becomes one of flexible electronic Display Technique that has development potentiality.
Electrophoretic display device (EPD) is based on the non-emissive display device that the electrophoresis that is suspended in the charged pigment particles in the decentralized medium is processed.This device is provided with two electrode of opposite pole plates usually, and one of them electrode is transparent.The suspension that includes decentralized medium and charged pigment particles is encapsulated between two electrode pads.When applying voltage between two electrodes, pigment particle directed moving in electric field migrates to a side, can see the color of pigment or decentralized medium in transparency electrode one side.Pigment particle can be static when electric field does not exist, and display image can be kept.
For fear of undesirable deposition and cohesion take place, between two electrodes, separate usually, form less space cell.Method can be that the dispersion liquid of charged pigment particles is injected the small netted interval of preparation in advance.Also can the dispersion liquid of charged pigment particles be wrapped in the microcapsules of being processed by transparent polymer, and then the electrophoretic display microcapsule that obtains is coated on the electrode base sheet surface, can constitute sheet electrophoretic display apparatus with flexibility.
Electrophoretic display microcapsule can adopt various coating techniques, comprises slit die extrusion coated, airblade coating and gravure coating etc.These technology are in U.S. Pat 5,930,026, US5,961,804 just mention, among the Japan Patent 2005-153509 to gravure coating describe in detail.
Best individual layer of electrophoretic display microcapsule and dense being coated on the substrate.In case microcapsules overlap with several or very big gap are arranged between microcapsules, will cause display performance variation and display defect, therefore need accurately control coating layer thickness.In the coating process of aforementioned patent technology, slit die extrusion coated and gravure coating, the slit of coating die is fixed, and only can adjust microcapsule layer thickness through speed through base material, and microcapsules receives the extrusion and damage of mould easily; The airblade coating mode is through air pressure adjustment microcapsule layer thickness, and control accuracy is very poor.
Summary of the invention
The technical problem that the present invention solves is the thickness of control microcapsules display floater microcapsule layer, reduces holiday, and its manufacturing approach of a kind of microcapsules display floater is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
The manufacturing approach of microcapsules display floater of the present invention; This method may further comprise the steps: (a) adopt the scraper apparatus for coating on base material, to be coated with and contain the coating fluid that shows with microcapsules; (b) the aforementioned the substrate passed vibrating device that is loaded with microencapsulation coating makes the microcapsule layer even compact.
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 0.1～10m/min, and scraper angle is 45～90 degree, coating weight 20～500g/m
2
In described (a) operation, the microcapsule layer that on said base material, is coated with is continuous or interrupted in the horizontal.
In described (b) operation, make the vibration operation of microcapsule layer even compact, the direction of vibration of vibrating device is horizontal or vertical or horizontal, vertical combination.
The substrate passed vibrating device that is loaded with microencapsulation coating gets into the isolation buffer device before, in order to avoid the influence of vibrating device to coating quality.
The present invention uses the adjusting scraper coating, on apparatus for coating, is provided with micromatic setting (differentiator), through the distance of adjustment scraper and base material, can accurately control the thickness of microcapsule layer coating, obtains desirable coating and display effect.Simultaneously, through the doctor blade device axial baffle is set, can adjust capsule layer coating width, and can realize the interrupted coating on the direction of principal axis, obtain the multiple row microencapsulation coating that microcapsules and base material expose alternately.
In addition, manufacturing process of the present invention is behind coating microcapsules on the base material, and through vibrating device, it is in order fine and close more that microcapsules are arranged.
The invention has the beneficial effects as follows: can accurately control the thickness of microencapsulation coating, it is in order fine and close that microcapsules are arranged, continuous or interrupted good microencapsulation coating and the display floater that obtain.
Description of drawings
Fig. 1 is the view profile of an instance of signal adjusting scraper microcapsules apparatus for coating of the present invention and painting process.
Fig. 2 is the vertical view of a single-row continuous coating instance of signal adjusting scraper microcapsules apparatus for coating of the present invention and painting process.
Fig. 3 is the vertical view that a multiple row of signal adjusting scraper microcapsules apparatus for coating of the present invention and painting process intermittently is coated with instance.
Fig. 4 is the view profile of an instance of signal vibrating device of the present invention and operation.
Fig. 5 is the vertical view of an instance of signal vibrating device of the present invention and operation.
Fig. 6 is the vertical view of the coating of signal adjusting scraper microcapsules of the present invention, isolation buffer, vibrating device and operation Combination application instance.
Among the figure: 10--base material, 20--microcapsules coating fluid, 21--microcapsule layer; The 30-coating blade, the 31-scraper is regulated differentiator, 32--microcapsules coating fluid storage tank; 33--is coated with backing roll, 34--multiple row coating shim, 40--vibration machine; 41--vibrating device backing roll, 42--vibrating device niproll, the 50--isolation buffer supports and niproll.
The specific embodiment
Microcapsules display floater of the present invention and manufacturing approach thereof below are described in detail and particularly.But scope of the present invention does not receive any restriction of these explanations, beyond the explanation below, can make suitable change in the point range of the present invention wanting, and still comprises within the scope of the invention.
Embodiment 1
The manufacturing approach of the microcapsules display floater that the present invention relates to forms the coating that contains the Presentation Function microcapsules on base material." Presentation Function " comprises Presentation Functions such as electrophoresis showed, magnetic demonstration, temperature-sensitive demonstration, pressure-sensitive demonstration.The average grain diameter of microcapsules 5 microns in 500 micrometer ranges, usually require to have smaller particle size and distribute, to obtain good coating quality and display performance.The present invention is particularly useful for the manufacturing of electrophoretic display microcapsule coating and display floater.Here " electrophoretic display microcapsule " is meant, in the polymer capsule housing, is enclosed with the microcapsules of the dispersion liquid of electrophoresis displaying particle and decentralized medium thereof, and electrophoresis displaying particle and electrophoretic display microcapsule can prepare with known method.White electrophoretic particles is selected titanium oxide usually for use, and black particles carbon black then commonly used, titanium are black etc.The microcapsules housing is used gelatin etc. has anionic polymer combined preparation such as compound and the Arabic gum of isoelectric point, styrene-maleic anhydride copolymer, sodium carboxymethylcellulose.
Electrophoresis showed is the film that has conductive layer with base material, adopts PETG (PET) or PEN (PEN) film that has indium tin oxide (ITO) transparency conducting layer usually.Also can adopt be applied to other base material after, transfer to the mode on this type of base material.The not special restriction of the thickness of base material, preferred more than 50 microns below 200 microns.Layer at transparent layer resistance preferably is in below 1000 Ω.
Coating process of the present invention adopts accompanying drawing 1, (doctor blade device is by coating blade 30 for the adjusting scraper coating device shown in 2; Differentiator 31 regulated by scraper and microcapsules coating fluid storage tank 32 is formed, and the laboratory can be buied by general Shen, Shanghai chemical machinery Co., Ltd with doctor blade device).It is known coating technique that scraper is filmed, and the microcapsules coating fluid is stored in the storage tank behind the coating device scraper, along with base material moves, through the gap of scraper and base material.This mode microcapsules do not need the extruding transmission course of storage tank to base material, can avoid the breakage of microcapsules, keep shape intact.According to the microcapsules particle diameter and the content of microcapsules coating fluid,, can adjust following scraper with control gap by above-below direction, i.e. the thickness of final microencapsulation coating through regulating the differentiator of coating device top.The application of differential adjusting scraper, can be simple and direct accurately adjust microcapsule layer thickness with the micron precision, avoid the microcapsules that cover light causes to cover not exclusively, perhaps the display performance that causes of overweight coating descends and the waste of microcapsules.The microencapsulation coating width arrives 1000mm at 100mm usually.
The microcapsule layer that on said base material, is coated with is continuous in the horizontal.
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 0.1m/min, and scraper angle is 45 degree, coating weight 20g/m
2
The base material that is loaded with microcapsule layer is that level is passed through a vibrating device before drying, and direction of vibration can be laterally, also can be vertical or horizontal, vertical combination, can make microcapsule layer even compact more through the vibration operation.Like Fig. 4, shown in Figure 5, vibrating device is made up of vibration machine 40, vibrating device backing roll 41 and shaking device niproll 42.But vibration generating arrangements such as the off-centre that the vibration machine application market can get vibration, ultrasonic vibration, vibration frequency can be 1Hz between the 100KHz, be preferably in 10Hz between the 10KHz, Oscillation Amplitude can be between 0.1 millimeter to 10 millimeters.Vibration machine directly drives backing roll and niproll and drives the base material that is loaded with microcapsule layer and become horizontal axis or extensional vibration, can reduce the space of microcapsules and overlapping, thereby make microcapsule layer even compact more.
Embodiment 2
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 2m/min, and scraper angle is 90 degree, coating weight 100g/m
2
Other is with embodiment 1.
Embodiment 3
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 5m/min, and scraper angle is 60 degree, coating weight 300g/m
2
Adjust the width of microencapsulation coating through the mode that shim is set in storage tank; The microcapsule layer that on said base material, is coated with is interrupted in the horizontal; Realize that multiple row is coated with (accompanying drawing 3) at interval, obtain the multiple row coating of microencapsulation coating and blank base material longitudinal separation.
Other is with embodiment 1.
Embodiment 4
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 7m/min, and scraper angle is 80 degree, coating weight 400g/m
2
Though the vibration frequency of vibrating device and amplitude hour can not influence coated portion, still the isolation buffer device can be set between adjusting scraper coating device and vibrating device.As shown in Figure 6; The isolation buffer device is made up of isolation buffer backing roll and niproll 50; And can be used as the actuator of microcapsules coated substrate; Be transmitted to the apparatus for coating part in the time of can avoiding the vibration of vibrating device big, influence coating uniformity, thus obtain best microcapsule layer coating quality and performance.
Other is with embodiment 1.
Embodiment 5
When adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 10m/min, and scraper angle is 50 degree, coating weight 500g/m
2
Other is with embodiment 4.
Claims (5)
1. the manufacturing approach of a microcapsules display floater; It is characterized in that: this method may further comprise the steps: (a) adopt the scraper apparatus for coating on base material, to be coated with and contain the coating fluid that shows with microcapsules; (b) the aforementioned the substrate passed vibrating device that is loaded with microencapsulation coating makes the microcapsule layer even compact.
2. the manufacturing approach of microcapsules display floater according to claim 1 is characterized in that: when adopting the scraper apparatus for coating to be coated with, the base material speed of a motor vehicle is 0.1～10m/min, and scraper angle is 45～90 degree, coating weight 20～500g/m
2
3. the manufacturing approach of microcapsules display floater according to claim 2 is characterized in that: in described (a) operation, the microcapsule layer that on said base material, is coated with is continuous or interrupted in the horizontal.
4. the manufacturing approach of microcapsules display floater according to claim 2 is characterized in that: in described (b) operation, make the vibration operation of microcapsule layer even compact, the direction of vibration of vibrating device is horizontal or vertical or horizontal, vertical combination.
5. the manufacturing approach of microcapsules display floater according to claim 1 is characterized in that: the substrate passed vibrating device that is loaded with microencapsulation coating gets into the isolation buffer device before, in order to avoid the influence of vibrating device to coating quality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102131517A CN102310023A (en) | 2010-06-30 | 2010-06-30 | Manufacture method of microcapsule display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102131517A CN102310023A (en) | 2010-06-30 | 2010-06-30 | Manufacture method of microcapsule display panel |
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| CN102310023A true CN102310023A (en) | 2012-01-11 |
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| CN2010102131517A Pending CN102310023A (en) | 2010-06-30 | 2010-06-30 | Manufacture method of microcapsule display panel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091926A (en) * | 2013-02-06 | 2013-05-08 | 广州奥翼电子科技有限公司 | Electrophoresis display assembly, electrophoresis displayer and preparation method of the same |
| CN113490550A (en) * | 2019-01-22 | 2021-10-08 | 克里斯托弗·舒尔特-格贝尔 | Apparatus for providing adhesive |
| JP2022079727A (en) * | 2021-01-05 | 2022-05-26 | イー インク コーポレイション | Processes for producing electro-optic displays |
Citations (5)
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| CN1085133A (en) * | 1992-07-07 | 1994-04-13 | 约翰莱萨特(澳大利亚)有限公司 | Continuous melt-coating method and device |
| CN1135421A (en) * | 1996-01-23 | 1996-11-13 | 南开大学戈德防伪技术公司 | Anti-fake fluorescent pressure-sensitive carbon paper generating invisible duplication handwriting and making method thereof |
| CN1904709A (en) * | 2005-07-29 | 2007-01-31 | 精工爱普生株式会社 | Electrophoretic display sheet, electrophoretic display apparatus, and method of manufacturing electrophoretic display sheet |
| WO2008103662A1 (en) * | 2007-02-19 | 2008-08-28 | Clarke Ronald C | Method and apparatus for driving a bolt |
| CN101615667A (en) * | 2008-06-26 | 2009-12-30 | 上海比亚迪有限公司 | A kind of preparation method of battery pole piece and preparation facilities |
-
2010
- 2010-06-30 CN CN2010102131517A patent/CN102310023A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN1085133A (en) * | 1992-07-07 | 1994-04-13 | 约翰莱萨特(澳大利亚)有限公司 | Continuous melt-coating method and device |
| CN1135421A (en) * | 1996-01-23 | 1996-11-13 | 南开大学戈德防伪技术公司 | Anti-fake fluorescent pressure-sensitive carbon paper generating invisible duplication handwriting and making method thereof |
| CN1904709A (en) * | 2005-07-29 | 2007-01-31 | 精工爱普生株式会社 | Electrophoretic display sheet, electrophoretic display apparatus, and method of manufacturing electrophoretic display sheet |
| WO2008103662A1 (en) * | 2007-02-19 | 2008-08-28 | Clarke Ronald C | Method and apparatus for driving a bolt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091926A (en) * | 2013-02-06 | 2013-05-08 | 广州奥翼电子科技有限公司 | Electrophoresis display assembly, electrophoresis displayer and preparation method of the same |
| CN103091926B (en) * | 2013-02-06 | 2019-01-25 | 广州奥翼电子科技股份有限公司 | Electrophoresis showed component, electrophoretic display device (EPD) and preparation method thereof |
| CN113490550A (en) * | 2019-01-22 | 2021-10-08 | 克里斯托弗·舒尔特-格贝尔 | Apparatus for providing adhesive |
| JP2022079727A (en) * | 2021-01-05 | 2022-05-26 | イー インク コーポレイション | Processes for producing electro-optic displays |
| JP7335388B2 (en) | 2021-01-05 | 2023-08-29 | イー インク コーポレイション | The process of producing electro-optic displays |
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Application publication date: 20120111 |