JPH03284729A - Production of display panel for electrophoresis display device - Google Patents
Production of display panel for electrophoresis display deviceInfo
- Publication number
- JPH03284729A JPH03284729A JP2085829A JP8582990A JPH03284729A JP H03284729 A JPH03284729 A JP H03284729A JP 2085829 A JP2085829 A JP 2085829A JP 8582990 A JP8582990 A JP 8582990A JP H03284729 A JPH03284729 A JP H03284729A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- adhesive
- display panel
- soln
- dispersed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000001962 electrophoresis Methods 0.000 title abstract 3
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011737 fluorine Substances 0.000 claims abstract description 9
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000010419 fine particle Substances 0.000 claims description 8
- 239000002612 dispersion medium Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000012190 activator Substances 0.000 claims 1
- 239000011324 bead Substances 0.000 abstract description 11
- -1 polyethylene Polymers 0.000 abstract description 10
- 239000004094 surface-active agent Substances 0.000 abstract description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 8
- 239000004698 Polyethylene Substances 0.000 abstract description 7
- 229920000573 polyethylene Polymers 0.000 abstract description 7
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 5
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229930192419 itoside Natural products 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電気泳動表示装置に使用される表示パネルの
製造法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a display panel used in an electrophoretic display device.
（従来の技術）
電気泳動表示装置は、少なくとも一方は透明な２枚の基
板をスペーサを介して所要間隔を開けて対向配置して密
封空間を形成し、この密封空間に微粒子をこれと色の異
なる分散媒中に分散させた表示液を充填して表示パネル
とし、この表示パネルに電界を印加して表示を得ようと
するもので、透明な基板面が表示面となる。(Prior Art) In an electrophoretic display device, two substrates, at least one of which is transparent, are arranged facing each other with a required distance between them via a spacer to form a sealed space, and fine particles of different colors are placed in this sealed space. Display liquids dispersed in different dispersion media are filled to form a display panel, and an electric field is applied to this display panel to obtain a display, and the transparent substrate surface serves as the display surface.
密封空間に充填される電気泳動表示装置用表示液は、キ
シレン、イソパラフィン系などの分散媒、二酸化チタン
などの微粒子、この微粒子と色のコントラストを付ける
ための染料、界面活性剤などの分散剤及び荷電付与剤な
どの添加剤から成る。The display liquid for electrophoretic display devices that is filled in the sealed space contains a dispersion medium such as xylene or isoparaffin, fine particles such as titanium dioxide, a dye to provide a color contrast with the fine particles, a dispersant such as a surfactant, and the like. Consists of additives such as charge-imparting agents.
この表示液に電界を印加することにより、表示液中の微
粒子が透明板側に移動し表面には微粒子の色が現われる
。これと逆方向の電界を印加することにより、微粒子は
背面側に移動し表面には分散媒の色が現われる。By applying an electric field to this display liquid, the fine particles in the display liquid move toward the transparent plate, and the color of the fine particles appears on the surface. By applying an electric field in the opposite direction to this, the fine particles move to the back side and the color of the dispersion medium appears on the surface.
このように電気泳動表示装置は、電界の向きを制御する
ことにより所望の表示を得ることができ、表示液が比較
的入手容易な低コスト材料から成り、視野角が通常の印
刷物並に広く、消費電力が小さく、メモリ性も有するこ
とから、安価な表示装置として注目されている。In this way, electrophoretic display devices can obtain a desired display by controlling the direction of the electric field, the display liquid is made of relatively easily available and low-cost materials, and the viewing angle is as wide as that of ordinary printed matter. Since it has low power consumption and has memory properties, it is attracting attention as an inexpensive display device.
尚、電気泳動表示装置の電界印加手段としては、一対の
基板面に形成された電極間に電圧を印加する方法、特開
昭６２−３４１８７号公報に示されるようなコロナイオ
ン発生器とこのイオンの流れを制御する制御電極から成
る書込電極とにより一方の基板面に静電潜像を形成しこ
の静電潜像と他方の基板面の透明電極との間に電界を生
じさせる方法などが使用される。In addition, as a means of adding electric fields of the electronic swimming display device, the method of applying a voltage between the electrodes formed on the pair of substrate surface, the colonion generator and this ion shown in the Special Opening 62-34187. There is a method in which an electrostatic latent image is formed on one substrate surface using a write electrode consisting of a control electrode that controls the flow of the liquid, and an electric field is generated between this electrostatic latent image and a transparent electrode on the other substrate surface. used.
（発明が解決しようとする課題）
電気泳動表示装置は大型表示装置が実現できるが、大型
の表示パネルになるにつれスペーサも密に設ける必要が
あり、表示パネルの密封空間の間隔は１０〜３００μｍ
と狭いので、スペーサを正確に、生産性良く設けること
は非常に困難で、スペーサの形成が表示パネル製造の隘
路となっていた。(Problems to be Solved by the Invention) Electrophoretic display devices can realize large display devices, but as the display panels become larger, spacers must be provided closer together, and the intervals between the sealed spaces of the display panels are 10 to 300 μm.
Therefore, it is very difficult to provide spacers accurately and with good productivity, and the formation of spacers has been a bottleneck in display panel manufacturing.
本発明は、大型化が可能な電気泳動表示装置用表示パネ
ルの製造法を提供するものである。The present invention provides a method for manufacturing a display panel for an electrophoretic display device that can be made larger.
（問題点を解決するための手段）
本発明は、少なくとも一方は透明な２枚の基板をスペー
サを介して所要間隔を開けて対向配置して密封空間を形
成し、この密封空間に微粒子をこれと色の異なる分散媒
中に分散させた表示液を充填する電気泳動表示装置用表
示パネルの製造法に於て、一方の基板上に粒子が分散さ
れかつフッ素系界面活性剤が添加された接着剤溶液を塗
布し乾燥させて粒子によるスペーサを設けて、他方の基
板を対向配置させるようにしたものである。(Means for Solving the Problems) The present invention involves forming a sealed space by arranging two substrates, at least one of which is transparent, facing each other with a required distance between them via a spacer, and introducing fine particles into the sealed space. In the manufacturing method of a display panel for an electrophoretic display device, which is filled with a display liquid dispersed in a dispersion medium of a different color, an adhesive is used in which particles are dispersed on one substrate and a fluorine-based surfactant is added. A chemical solution is applied and dried to provide a spacer made of particles, and the other substrate is placed facing each other.
粒子としてはポリエチレンビーズ等の各種プラスチック
ビーズやガラスピーズ等が使用できる。As particles, various plastic beads such as polyethylene beads, glass beads, etc. can be used.
第１図は、本発明の表示パネルを用いた電気泳動表示装
置の構成を示す断面図である。電気泳動分散系への電界
印加はコロナイオンの帯電を利用している。第１図に於
て、１は透明基板、２は透明導電膜、３はポリエチレン
ビーズ、４は絶縁基板、５は電気泳動分散液、６は封止
樹脂、７はコロナワイヤ、８は制御電極、９はコロナワ
イヤ７に発生したコロナイオンを静電電極で所定の像と
された静電潜像である。第２図（ａ）、（ｂ）は本発明
の表示パネルの製造法を示すものである。FIG. 1 is a sectional view showing the structure of an electrophoretic display device using the display panel of the present invention. The electric field applied to the electrophoretic dispersion system uses the charging of corona ions. In Figure 1, 1 is a transparent substrate, 2 is a transparent conductive film, 3 is polyethylene beads, 4 is an insulating substrate, 5 is an electrophoretic dispersion liquid, 6 is a sealing resin, 7 is a corona wire, and 8 is a control electrode. , 9 is an electrostatic latent image obtained by forming a predetermined image of corona ions generated in the corona wire 7 using an electrostatic electrode. FIGS. 2(a) and 2(b) show a method of manufacturing a display panel of the present invention.
透明基板１としては透明導電膜２の形成されたガラスを
用い、これにポリエチレンビーズを分散させた接着剤溶
液を塗布する。Glass on which a transparent conductive film 2 is formed is used as the transparent substrate 1, and an adhesive solution in which polyethylene beads are dispersed is applied to this glass.
ポリエチレンビーズ（製鉄化学■製、フロ−ビーズ９０
μ品） ５００ｍｇを秤量し、アセ）・ン５００ｃｃに
エポキシ樹脂（油化シェル■製、エピコート８２８）３
２０ｍ、硬化剤（和光純薬■製 トリエチレンテトラミ
ン） ３２０ｍｇ、フッ素系界面活性剤（フロラード
ＦＣ−４３０，３Ｍ社製） １００ｍｇを溶解させたも
のに分散させた。接着剤としては、アクリル系接着剤、
ウレタン系接着剤等も使用できる。Polyethylene beads (manufactured by Seitetsu Kagaku ■, Flow Beads 90
Weighed 500 mg of μ product) and added epoxy resin (manufactured by Yuka Shell ■, Epicoat 828) 3 to 500 cc of Ace).
20m, curing agent (triethylenetetramine manufactured by Wako Pure Chemical Industries, Ltd.) 320mg, fluorine-based surfactant (Florado
FC-430, manufactured by 3M Company) 100 mg was dissolved and dispersed. Adhesives include acrylic adhesive,
Urethane adhesives etc. can also be used.
フッ素系界面活性剤としては、パーフルオロアルキルス
ルホン酸のアンモニウム塩、パーフルオロアルキルヌル
ホン酸のカリウム塩等のアニオン、パーフルオロアルキ
ル第４級アンモニウムヨウ化物、パーフルオロアルキル
スルホンアミドエチルジプロピル塩酸塩等のカチオン、
パーフルオロアルキルポリオキシエチレンエタノール、
フッ素化アルキルエステル等のノニオン等も使用できる
。Examples of fluorine-based surfactants include anions such as ammonium salts of perfluoroalkylsulfonic acids and potassium salts of perfluoroalkylsulfonic acids, perfluoroalkyl quaternary ammonium iodides, and perfluoroalkylsulfonamide ethyl dipropyl hydrochloride. cations such as
perfluoroalkylpolyoxyethylene ethanol,
Nonions such as fluorinated alkyl esters can also be used.
溶剤としてはアセトンの他にチルエチルケトン等の一般
の溶剤が使用できる。接着剤溶液の濃度は０１〜１０重
量％、フッ素系界面活性剤の添加量は接着剤の１１５〜
１／３０使用するのが好ましい。四角いテフロン枠（厚
さＩｍｍ、ニチアス■製、ＴＯＭＢＯ９０００）をガラ
ス基板のＩＴＯ面側の周囲に設置し接着剤溶液を注入し
た。そのまま放置してアセトンを自然蒸発させてスペー
サ付基板を作製した。In addition to acetone, general solvents such as thylethyl ketone can be used as the solvent. The concentration of the adhesive solution is 01 to 10% by weight, and the amount of fluorosurfactant added is 115 to 10% by weight of the adhesive.
It is preferable to use 1/30. A square Teflon frame (thickness: I mm, manufactured by Nichias ■, TOMBO 9000) was placed around the ITO side of the glass substrate, and an adhesive solution was injected. The acetone was allowed to evaporate naturally by leaving it as it was to produce a substrate with spacers.
この様子を第２図（ｂ）に示す。第２図（ｂ）に於て１
０はエポキシ樹脂である。ついで第３図に示すようにポ
リエチレンテレフタレートフィルム（厚さ１００μ）４
に接着剤１１を１０μ塗布したものをスペーサ付基板と
ラミネートして表示パネルを作製した。これに電気泳動
分散液を注入して密封封止し表示パネルとする。This situation is shown in FIG. 2(b). In Figure 2(b) 1
0 is epoxy resin. Then, as shown in Figure 3, a polyethylene terephthalate film (thickness 100μ) 4
A display panel was prepared by applying 10 μm of adhesive 11 to the substrate and laminating it with a spacer-equipped substrate. An electrophoretic dispersion liquid is injected into this and the display panel is sealed.
（作用）
フッ素系界面活性剤は溶剤の表面張力を大幅に低下する
作用があるため乾燥硬化条件のコントロールが不要で、
自然乾燥でも粒子の凝集を招くことがない。また配合量
等も、条件幅が広がるため工程管理が大幅に軽減され、
低コスト化が可能となる。(Function) Fluorine surfactants have the effect of significantly lowering the surface tension of the solvent, so there is no need to control drying and curing conditions.
Air drying does not cause particle aggregation. In addition, since the range of conditions for compounding amount etc. is widened, process control is greatly reduced.
Cost reduction becomes possible.
（発明の効果）
本発明では、粒子をスペーサに用いているので、内部空
間が連通しており、気泡の残存等の欠陥もなく、表示液
の注入が短時間になった。(Effects of the Invention) In the present invention, since particles are used as the spacer, the internal space is communicated, there are no defects such as residual bubbles, and the injection of the display liquid is shortened.
また粒子を分散させた接着剤溶液にフッ素系界面活性剤
を添加しているので、使用材料の配合量や乾燥硬化条件
等を厳密にコントロールしないでの粒子が凝集したり接
着剤の厚みむらを生ずるといったことがない。In addition, since a fluorine-based surfactant is added to the adhesive solution in which particles are dispersed, it is possible to avoid particle agglomeration or uneven thickness of the adhesive if the amount of materials used and drying and curing conditions are not strictly controlled. It never occurs.
このため製造工程において使用材料の厳密な秤量、使用
時まで溶剤が揮散しないよう密封保存、溶剤の乾燥速度
を制御するコントローラ等が不要でありコスト高の要因
となることがない。Therefore, in the manufacturing process, there is no need for strict weighing of the materials used, storage in a sealed container to prevent the solvent from evaporating until use, or a controller to control the drying speed of the solvent, thereby eliminating the need for high costs.
第１図は電気泳動表示装置の断面図、第２図（ａ）（ｂ
）は本発明の表示パネルの製造法を示す断面図、第３図
は本発明の表示パネルの断面図である。
符号の説明
１、透明基板 ２．透明導電膜３、ポリエチ
レンビーズ ４．絶縁基板５、電気泳動分散液 ６
．封止樹脂７、コロナワイヤ ８．制御電極９、
静電潜像 １０．エポキシ樹脂１１、接着剤
１２、エポキシ樹脂のアセトン溶液Figure 1 is a cross-sectional view of an electrophoretic display device, Figures 2 (a) and (b)
) is a cross-sectional view showing a method of manufacturing a display panel of the present invention, and FIG. 3 is a cross-sectional view of the display panel of the present invention. Explanation of symbols 1. Transparent substrate 2. Transparent conductive film 3, polyethylene beads 4. Insulating substrate 5, electrophoretic dispersion liquid 6
．． Sealing resin 7, corona wire 8. control electrode 9,
Electrostatic latent image 10. Epoxy resin 11, adhesive 12, epoxy resin acetone solution
Claims (1)
して所要間隔を開けて対向配置して密封空間を形成し、
この密封空間に微粒子をこれと色の異なる分散媒中に分
散させた表示液を充填する電気泳動表示装置用表示パネ
ルの製造法に於て、一方の基板上に粒子が分散されかつ
フッ素系界面活性剤が添加された接着剤溶液を塗布し乾
燥させて粒子によるスペーサを設けて、他方の基板を対
向配置させることを特徴とする電気泳動表示装置用表示
パネルの製造法。1. Two substrates, at least one of which is transparent, are arranged facing each other with a required distance between them via a spacer to form a sealed space,
In a manufacturing method for a display panel for an electrophoretic display device, in which this sealed space is filled with a display liquid in which fine particles are dispersed in a dispersion medium of a different color, the particles are dispersed on one substrate and a fluorine-based interface is used. 1. A method for manufacturing a display panel for an electrophoretic display device, which comprises applying an adhesive solution to which an activator has been added, drying the adhesive solution, providing spacers made of particles, and arranging the other substrate to face each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2085829A JPH03284729A (en) | 1990-03-30 | 1990-03-30 | Production of display panel for electrophoresis display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2085829A JPH03284729A (en) | 1990-03-30 | 1990-03-30 | Production of display panel for electrophoresis display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03284729A true JPH03284729A (en) | 1991-12-16 |
Family
ID=13869741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2085829A Pending JPH03284729A (en) | 1990-03-30 | 1990-03-30 | Production of display panel for electrophoresis display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03284729A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5745094A (en) * | 1994-12-28 | 1998-04-28 | International Business Machines Corporation | Electrophoretic display |
| US6144361A (en) * | 1998-09-16 | 2000-11-07 | International Business Machines Corporation | Transmissive electrophoretic display with vertical electrodes |
| US6184856B1 (en) | 1998-09-16 | 2001-02-06 | International Business Machines Corporation | Transmissive electrophoretic display with laterally adjacent color cells |
| US6225971B1 (en) | 1998-09-16 | 2001-05-01 | International Business Machines Corporation | Reflective electrophoretic display with laterally adjacent color cells using an absorbing panel |
| US6271823B1 (en) | 1998-09-16 | 2001-08-07 | International Business Machines Corporation | Reflective electrophoretic display with laterally adjacent color cells using a reflective panel |
| JP2011242471A (en) * | 2010-05-14 | 2011-12-01 | Mitsubishi Pencil Co Ltd | Electrophoretic display device and method for manufacturing the same |
| JP2011242439A (en) * | 2010-05-14 | 2011-12-01 | Mitsubishi Pencil Co Ltd | Method of manufacturing electrophoretic display medium |
| JP2012040522A (en) * | 2010-08-20 | 2012-03-01 | Mitsubishi Pencil Co Ltd | Method for manufacturing base material provided with adhesive layer |
-
1990
- 1990-03-30 JP JP2085829A patent/JPH03284729A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5745094A (en) * | 1994-12-28 | 1998-04-28 | International Business Machines Corporation | Electrophoretic display |
| US5872552A (en) * | 1994-12-28 | 1999-02-16 | International Business Machines Corporation | Electrophoretic display |
| US6144361A (en) * | 1998-09-16 | 2000-11-07 | International Business Machines Corporation | Transmissive electrophoretic display with vertical electrodes |
| US6184856B1 (en) | 1998-09-16 | 2001-02-06 | International Business Machines Corporation | Transmissive electrophoretic display with laterally adjacent color cells |
| US6225971B1 (en) | 1998-09-16 | 2001-05-01 | International Business Machines Corporation | Reflective electrophoretic display with laterally adjacent color cells using an absorbing panel |
| US6271823B1 (en) | 1998-09-16 | 2001-08-07 | International Business Machines Corporation | Reflective electrophoretic display with laterally adjacent color cells using a reflective panel |
| JP2011242471A (en) * | 2010-05-14 | 2011-12-01 | Mitsubishi Pencil Co Ltd | Electrophoretic display device and method for manufacturing the same |
| JP2011242439A (en) * | 2010-05-14 | 2011-12-01 | Mitsubishi Pencil Co Ltd | Method of manufacturing electrophoretic display medium |
| JP2012040522A (en) * | 2010-08-20 | 2012-03-01 | Mitsubishi Pencil Co Ltd | Method for manufacturing base material provided with adhesive layer |
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