JPH03284730A - Production of display panel for electrophoresis display device - Google Patents
Production of display panel for electrophoresis display deviceInfo
- Publication number
- JPH03284730A JPH03284730A JP2085830A JP8583090A JPH03284730A JP H03284730 A JPH03284730 A JP H03284730A JP 2085830 A JP2085830 A JP 2085830A JP 8583090 A JP8583090 A JP 8583090A JP H03284730 A JPH03284730 A JP H03284730A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- film
- display panel
- sea
- spacers
- 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 11
- 238000001962 electrophoresis Methods 0.000 title abstract 3
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000010419 fine particle Substances 0.000 claims description 8
- 239000002612 dispersion medium Substances 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 239000011324 bead Substances 0.000 abstract description 7
- -1 polyethylene terephthalate Polymers 0.000 abstract description 7
- 239000004698 Polyethylene Substances 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 6
- 229920000573 polyethylene Polymers 0.000 abstract description 6
- 229920006362 Teflon® Polymers 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
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. It is attracting attention as an inexpensive display device because of its low power consumption and memory properties.
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、一方の基板上に海島構造をも
つフィルムを積層し海島構造をもつフィルムの海部分を
除去し島部分のみ基板上に残存せしめてスペーサを形成
し、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 a method for manufacturing a display panel for an electrophoretic display device in which display liquids dispersed in dispersion media of different colors are filled, films with a sea-island structure are laminated on one substrate, and a sea of films with a sea-island structure is formed. A spacer is formed by removing a portion and leaving only an island portion on the substrate, and the other substrate is placed facing the substrate.
すなわち、本発明はスペーサ部分をフィルム化するよう
にしたもので、第１の基板と第２の基板がスペーサを介
して対向配置され、この内部空間に電気泳動分散液が密
封充填された電気泳動表示パネルの製造法において、少
なくとも第１の基板と海島構造をもつフィルムを積層す
る工程と、海島構造をもつフィルムの海部分を除去し島
部分のみ第１の基板に残存せしめてスペーサを形成する
工程とを含むことを特徴とする。That is, in the present invention, the spacer portion is formed into a film, and a first substrate and a second substrate are arranged facing each other with a spacer interposed therebetween, and an electrophoretic dispersion liquid is hermetically filled in this internal space. A method for manufacturing a display panel includes the step of laminating at least a first substrate and a film having a sea-island structure, and forming a spacer by removing the sea portion of the film having a sea-island structure and leaving only the island portion on the first substrate. It is characterized by including a process.
本発明で用いる海島構造をもつフィルムとは、溶剤に可
溶な海部分とその溶剤に不溶の島部分から成るもので、
フィルム形成法は公知の任意の技術が適用できる。The film with a sea-island structure used in the present invention consists of a sea part that is soluble in a solvent and an island part that is insoluble in the solvent.
Any known technique can be applied to the film forming method.
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。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.
海島構造をもつフィルムの作製は、第３図（ａ）に示す
ようにポリビニルアルコール（ＰＶＡ）５００ｍｇ （
和光純薬■製試薬特級）の水溶液１１にポリエチレンビ
ーズ（製鉄化学■製、フロ−ピース９０μ品）３を５ｇ
十分に分散し、キャスティング法によりＰＶＡの厚さ５
０μの海島構造をもつフィルムを形成する。第３図（ａ
）に於て１２はテフロン枠、１３はテフロン板である。The production of a film with a sea-island structure was carried out using 500 mg of polyvinyl alcohol (PVA) as shown in Figure 3 (a).
Add 5 g of polyethylene beads (manufactured by Tetsutsu Kagaku ■, Flow Piece 90μ product) 3 to aqueous solution 11 of Wako Pure Chemical ■ reagent special grade).
Thickness of PVA 5 by well-dispersed casting method
A film with a sea-island structure of 0μ is formed. Figure 3 (a
), 12 is a Teflon frame and 13 is a Teflon plate.
第３図（ｂ）に示すように、作製したフィルム１４はポ
リエチレンビーズの直径が９０μであるので粒子の一部
が露出した構造になっている。次いで第４図（ａ）に示
すように、フィルムを透明基板１と略々等しい大きさに
切断し、フィルムの露出したポリエチレンビーズが、接
着剤１０が塗布された透明基板１と接触するように配置
しｌ０５Ｐａの圧力で加熱硬化させた。第４図（ａ）に
於て２は透明導電膜である。次いで第４図（ｂ）に示す
ように、これを水中に浸積してＰＶＡを溶解させ除去し
スペーサ付基板を作製した。As shown in FIG. 3(b), the produced film 14 has a structure in which part of the particles are exposed because the diameter of the polyethylene beads is 90 μm. Next, as shown in FIG. 4(a), the film is cut into a size approximately equal to that of the transparent substrate 1, so that the exposed polyethylene beads of the film are in contact with the transparent substrate 1 coated with the adhesive 10. It was placed and cured by heating at a pressure of 105 Pa. In FIG. 4(a), 2 is a transparent conductive film. Next, as shown in FIG. 4(b), this was immersed in water to dissolve and remove the PVA, thereby producing a substrate with spacers.
次いで第２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。Next, as shown in FIG. 2, a polyethylene terephthalate film (thickness: 100 μm) 4 coated with 10 μm of adhesive 11 was laminated with a spacer-equipped substrate to produce a display panel. An electrophoretic dispersion liquid is injected into this and the display panel is sealed.
尚海島構造をもつフィルムと透明基板の接着は上記の実
施例の如く接着剤を用いる方法の他、接着剤を用いず透
明基板を加熱する熱融着による方法でも良い。The film having the sea-island structure and the transparent substrate may be bonded together by using an adhesive as in the above embodiment, or by thermal fusion by heating the transparent substrate without using an adhesive.
（発明の効果）
本発明によりスペーサ密度の均一性が増し、スペーサの
形成がこれまでより容易になり、また海島構造をもつフ
ィルムは長期保存が可能なため大量生産の自動化も可能
になった。(Effects of the Invention) The present invention increases the uniformity of spacer density, making it easier to form spacers than ever before, and also enables automation of mass production because the film having a sea-island structure can be stored for a long period of time.
第１図は電気泳動表示装置の断面図、第２図は本発明の
表示パネルの断面図、第３図（ａ）、（ｂ）は海島構造
をもつフィルムの製造工程を示す断面図、第４図（ａ）
、（ｂ）は本発明の表示パネルの製造工程を示す断面図
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 ７
．コロナワイヤ９、静電潜像 １０、接着剤FIG. 1 is a sectional view of an electrophoretic display device, FIG. 2 is a sectional view of a display panel of the present invention, FIGS. Figure 4 (a)
, (b) are cross-sectional views showing the manufacturing process 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 7
．． Corona wire 9, electrostatic latent image 10, adhesive
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、一方の基板上に海島構造をもつフィ
ルムを積層し海島構造をもつフィルムの海部分を除去し
島部分のみ基板上に残存せしめてスペーサを形成し、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, a film having a sea-island structure is laminated on one substrate. A method for manufacturing a display panel for an electrophoretic display device, which comprises removing the sea portion of a film having a sea-island structure and leaving only the island portion on a substrate to form a spacer, and arranging the other substrate facing each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2085830A JPH03284730A (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 |
|---|---|---|---|
| JP2085830A JPH03284730A (en) | 1990-03-30 | 1990-03-30 | Production of display panel for electrophoresis display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03284730A true JPH03284730A (en) | 1991-12-16 |
Family
ID=13869769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2085830A Pending JPH03284730A (en) | 1990-03-30 | 1990-03-30 | Production of display panel for electrophoresis display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03284730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343576A (en) * | 2005-06-09 | 2006-12-21 | Bridgestone Corp | Method for manufacturing information display panel, and information display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185923A (en) * | 1983-04-07 | 1984-10-22 | Sanki Eng Co Ltd | Location-changeable formation of tunnel type clean room in compartment |
| JPS6138614A (en) * | 1984-07-31 | 1986-02-24 | Kondo Kogyo Kk | Device for flowing clean air from filter frame in filter system suspended from ceiling of whole laminar flow type clean room |
| JPS62138635A (en) * | 1985-12-12 | 1987-06-22 | Kumagai Gumi Ltd | Full surface blow off ceiling facilities in vertical laminar flow type clean room |
| JPS62288433A (en) * | 1986-06-09 | 1987-12-15 | Takasago Thermal Eng Co Ltd | Air blow-off facilities for clean room |
-
1990
- 1990-03-30 JP JP2085830A patent/JPH03284730A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185923A (en) * | 1983-04-07 | 1984-10-22 | Sanki Eng Co Ltd | Location-changeable formation of tunnel type clean room in compartment |
| JPS6138614A (en) * | 1984-07-31 | 1986-02-24 | Kondo Kogyo Kk | Device for flowing clean air from filter frame in filter system suspended from ceiling of whole laminar flow type clean room |
| JPS62138635A (en) * | 1985-12-12 | 1987-06-22 | Kumagai Gumi Ltd | Full surface blow off ceiling facilities in vertical laminar flow type clean room |
| JPS62288433A (en) * | 1986-06-09 | 1987-12-15 | Takasago Thermal Eng Co Ltd | Air blow-off facilities for clean room |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343576A (en) * | 2005-06-09 | 2006-12-21 | Bridgestone Corp | Method for manufacturing information display panel, and information display panel |
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