JPH02223935A - Electrophoretic display device and its manufacture - Google Patents
Electrophoretic display device and its manufactureInfo
- Publication number
- JPH02223935A JPH02223935A JP1043610A JP4361089A JPH02223935A JP H02223935 A JPH02223935 A JP H02223935A JP 1043610 A JP1043610 A JP 1043610A JP 4361089 A JP4361089 A JP 4361089A JP H02223935 A JPH02223935 A JP H02223935A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- porous spacer
- dispersion system
- spacer
- flexible
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 125000006850 spacer group Chemical group 0.000 claims abstract description 59
- 239000006185 dispersion Substances 0.000 claims abstract description 47
- 230000008961 swelling Effects 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000002522 swelling effect Effects 0.000 claims description 3
- 230000001568 sexual effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000002612 dispersion medium Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- LTEQMZWBSYACLV-UHFFFAOYSA-N Hexylbenzene Chemical compound CCCCCCC1=CC=CC=C1 LTEQMZWBSYACLV-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000011115 styrene butadiene Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000012190 activator Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は電気泳動粒子を利用した表示装置に於いて、樹
脂製フィルム等からなる一方の可撓性電極板と、分散系
を小区間に不連続相に分割する為の膨潤質多孔性スペー
サとの協働により該スペーサの各孔に分散系を確実に１
・１人できるように構成した電気泳動表示装置及びその
製造法に関する。Detailed Description of the Invention "Industrial Application Field" The present invention relates to a display device using electrophoretic particles, in which one flexible electrode plate made of a resin film or the like and a dispersion system are divided into small sections. Cooperation with a swollen porous spacer to partition into discrete phases ensures that each pore of the spacer contains a dispersed system.
-Relates to an electrophoretic display device that can be constructed by one person and its manufacturing method.
［従来技術とその問題点」
電気泳動粒子を利用したこの種の電気泳動表示装置は、
第２図の如く、対向面に各々酸化インジウム・スズ等の
適宜な透明導電部材を用いて所要の表示用電極パターン
２．４を各別に形成した二枚の透明ガラス板ｌ、３を設
け、液体分散媒に電気泳動粒子６を分散させた分散系７
をその対向間隙間に封入すべ（スペーサ機能を兼ねる封
止部材５を外周部位に配装した構造を有する。このよう
な構造の電気泳動表示装置は、電極パターン２．４に表
示駆動用電圧を印加して電気泳動粒子６を電極パターン
２．４に吸着・離反させ得るように分散系７に電界を作
用させて電気泳動粒子６の分布状態を変えるとこにより
分散系７の光学的特性に変化を与えて文字、記号又は図
形等の所望の表示動作を行わせるものである。[Prior art and its problems] This type of electrophoretic display device using electrophoretic particles is
As shown in FIG. 2, two transparent glass plates 1 and 3 each having a required display electrode pattern 2.4 formed thereon using an appropriate transparent conductive material such as indium tin oxide on opposing surfaces are provided, Dispersion system 7 in which electrophoretic particles 6 are dispersed in a liquid dispersion medium
The electrophoretic display device having such a structure has a structure in which a sealing member 5 which also serves as a spacer is placed in the gap between the opposing faces. The optical properties of the dispersion system 7 are changed by applying an electric field to the dispersion system 7 to change the distribution state of the electrophoresis particles 6 so that the electrophoresis particles 6 can be attracted to and separated from the electrode pattern 2.4. is given to perform a desired display operation of characters, symbols, figures, etc.
分散系７の封入態様として上記の如く端部に設けた封止
部材５によって連続相状に構成する場合には、画電極パ
ターン２．４間の間隔むら等による電界強度の不均一に
起因して電気泳動粒子６が電極パターン面と平行方向な
移動を起こして電気泳動粒子の濃度分布に偏りを生じ、
その結果この電気泳動表示装置を長時間繰返し使用する
と電気泳動粒子の濃度が場所的に不均一になったり表示
むらを発生するという問題がある。When the dispersion system 7 is enclosed in a continuous phase with the sealing member 5 provided at the end as described above, the dispersion system 7 may be enclosed in a continuous phase due to unevenness in the electric field strength due to uneven spacing between the picture electrode patterns 2, 4, etc. The electrophoretic particles 6 move in a direction parallel to the electrode pattern surface, causing a bias in the concentration distribution of the electrophoretic particles.
As a result, when this electrophoretic display device is repeatedly used for a long time, there is a problem that the concentration of electrophoretic particles becomes uneven in places and display unevenness occurs.
そこで、このような不都合を解消する手段として、多数
の透孔を備えた多孔性スペーサを用いて各透孔に分散系
を封入することにより、分散系７を小区間に不連続相に
分割封入するような構造も特開昭４９−３２０３８号、
特開昭５９−３４５１８号或いは特開昭５９−１７１９
３０号各公報等丁番られている。Therefore, as a means to solve this inconvenience, the dispersion system 7 is divided and encapsulated in small sections into discontinuous phases by using a porous spacer with a large number of through holes and enclosing the dispersion system in each through hole. Such a structure is also disclosed in JP-A No. 49-32038,
JP-A-59-34518 or JP-A-59-1719
No. 30 publications are numbered.
しかし、多孔性スペーサを用いて分散系を小区間に不連
続相に分割する分散系分割型の電気泳動表示装置の上記
公知例の場合に於いて１両電極板に基板フィルムを各々
使用する場合には、フィルムの変形等によって多孔性ス
ペーサと電極板間に隙間を生じ易いので、電気泳動粒子
の偏在を発生させる虞がある。However, in the case of the above-mentioned known example of a dispersion-divided electrophoretic display device in which the dispersion is divided into small sections into discontinuous phases using porous spacers, a substrate film is used for each of the two electrode plates. Since a gap is likely to be formed between the porous spacer and the electrode plate due to film deformation or the like, there is a risk that electrophoretic particles may be unevenly distributed.
更に１両電極板と介装多孔性スペーサとを予め接着した
セル構造のものでは、多孔性スペーサの各孔に分散系を
一様に注入することは非常に困難である等、分散系注入
処理に伴なう製造上の難点が種々存在する他、分散系注
入の不完全な部分が発生して表示欠陥となる虞が多分に
あり、信頼性の高い表示装置を得る上での解決課題は多
い。Furthermore, in a cell structure in which both electrode plates and an intervening porous spacer are bonded in advance, it is extremely difficult to uniformly inject the dispersion system into each hole of the porous spacer. In addition to various manufacturing difficulties associated with this process, there is also a high possibility that incomplete dispersion injection may occur, resulting in display defects. many.
「発明の目的及び構成」
本発明は、多孔性スペーサを用いる分散系分割型の電気
泳動表示装置に於いて、多孔性スペーサを膨潤質部材で
構成すると共に、電極板の一方を可撓性に構成すること
により、膨潤質多孔性スペーサの各孔に分散系を容易確
実に注入可能な電気泳動表示装置及びその製造法を提供
するものである。``Object and Structure of the Invention'' The present invention provides a dispersion type electrophoretic display device using a porous spacer, in which the porous spacer is made of a swellable material and one of the electrode plates is made flexible. The present invention provides an electrophoretic display device and a method for manufacturing the same, in which a dispersion system can be easily and reliably injected into each pore of a swellable porous spacer.
その為に、本発明の電気泳動表示装置によれば、少なく
とも一方が透明質に構成された一組の対向配置した電極
板間に多孔性スペーサを介して電気泳動粒子を分散させ
た分散系を不連続相に分割して封入する構造の電気泳動
表示装置に於いて、上記分散系を不連続に分割する手段
として上記電極板間に介装した膨潤質多孔性スペーサを
設け、上記対向電極板の一方を該膨潤質多孔性スペーサ
に密着可能な可撓性に構成すると共に、他の電極板を透
明な“剛体で構成すべく案出したものである。Therefore, according to the electrophoretic display device of the present invention, a dispersion system in which electrophoretic particles are dispersed with a porous spacer interposed between a pair of opposing electrode plates, at least one of which is transparent, is used. In an electrophoretic display device having a structure in which discontinuous phases are divided and sealed, a swellable porous spacer is provided between the electrode plates as a means for discontinuously dividing the dispersion system, and the counter electrode plate One of the electrode plates is made flexible enough to adhere to the swellable porous spacer, and the other electrode plate is made of a transparent rigid body.
上記膨潤質多孔性スペーサの：Ｍ部周域には少なくとも
上記可撓性電極板との密着を容易化する為の手段として
接着固定部を一体に形成するように構成するのが好適で
ある。It is preferable that an adhesive fixing part is formed integrally with the periphery of the M part of the swellable porous spacer at least as a means for facilitating close contact with the flexible electrode plate.
斯かる電気泳動表示装置を製作するには、先ずフィルム
部材及び透明ガラス板の各一方面に所要の電極パターン
を各々形成した可撓性電極板と透明な剛体電極板とを用
意し、該剛体電極板の電極パターン側に配装した膨潤質
多孔性スペーサに対し電気泳動粒子を分散させた分散系
を過剰に供給した後、上記可撓性電極板をその電極パタ
ーンが上記剛体電極板の電極パターンと対面するように
上記膨潤質多孔性スペーサ上に配装し、次に上記可撓性
電極様の上面にその一端から押圧力を順次付与して該可
撓性電極板を上記膨潤質多孔性スペーサに密着させて余
分な分散系を押し出し、該多孔性スペーサの膨潤作用に
よりその各孔に上記分散系を封入保持する手法が採用さ
れる。In order to manufacture such an electrophoretic display device, first, a flexible electrode plate and a transparent rigid electrode plate, each having a desired electrode pattern formed on one side of a film member and a transparent glass plate, are prepared. After supplying an excessive amount of a dispersion system in which electrophoretic particles are dispersed to a swollen porous spacer arranged on the electrode pattern side of the electrode plate, the flexible electrode plate is placed on the electrode pattern side of the rigid electrode plate. The flexible electrode plate is placed on the swellable porous spacer so as to face the pattern, and then a pressing force is sequentially applied to the upper surface of the flexible electrode from one end to place the flexible electrode plate into the swellable porous spacer. A method is adopted in which the dispersion system is brought into close contact with a porous spacer to extrude the excess dispersion system, and the dispersion system is sealed and held in each pore by the swelling action of the porous spacer.
上記の如き膨潤質多孔性スペーサの素材としては、シリ
コンゴム、フッ素ゴム、スチレンーブタジエン糸、イソ
プレン系、エチレン−プロピレン系、アクリロニトリロ
−ブタジェン系、クロロブレン系の如き合成ゴムや天然
ゴム又は低結晶性の各種樹脂等を用いることが出来る。Materials for the above-mentioned swellable porous spacer include synthetic rubber such as silicone rubber, fluororubber, styrene-butadiene thread, isoprene-based, ethylene-propylene-based, acrylonitrilo-butadiene-based, chlorobrene-based rubber, natural rubber, or low-crystalline rubber. Various resins and the like can be used.
「実 施 例」
以下、図示の実施例を参照しながら本発明を更に詳述す
る。第１図に於いて、１０は透明な剛体電極板を構成す
る為の基材としての透明なガラス板であってその上面に
は酸化インジウム・スズ等の透明導電材料を用いて所要
の電極パターン１１を適宜形成しである。この剛体電極
板の上面には既述の如き端部封止部１４５と分散系を小
区間に分割して封入するための膨潤質多孔性スペーサ１
２を配装しである。この膨潤質多孔性スペーサ１２は、
シリコンゴム、フッ素ゴム、スヂレンーブタジエン系、
イソプレン系、エチレン−プロピレン系、アクリロニト
リロ−ブタジェン系、クロロブレン系の如き合成ゴムや
天然ゴム又は低結晶性の各１ｍ Ｍ脂等の素材からなる
シート状物にバンチ、レーザ等の手段か又はスクリーン
印刷手段で厚さ３０μｍ程度で所要の透孔な多数形成し
たものをこの剛体電極板の電極パターン１１形成側に適
宜配装することが出来る。"Examples" The present invention will be described in further detail below with reference to illustrated embodiments. In Fig. 1, numeral 10 is a transparent glass plate as a base material for constructing a transparent rigid electrode plate, and a required electrode pattern is formed on its upper surface using a transparent conductive material such as indium tin oxide. 11 is formed as appropriate. On the upper surface of this rigid electrode plate, there is an end sealing part 145 as described above and a swelling porous spacer 1 for dividing and sealing the dispersed system into small sections.
2 is installed. This swellable porous spacer 12 is
silicone rubber, fluororubber, styrene-butadiene,
A sheet-like material made of synthetic rubber such as isoprene-based, ethylene-propylene-based, acrylonitrilo-butadiene-based, chlorobrene-based, natural rubber, or low-crystalline 1mM resin is coated by means such as bunching, laser, or screen printing. A plate having a thickness of about 30 μm and a large number of required through holes can be appropriately arranged on the side of the rigid electrode plate on which the electrode pattern 11 is formed.
斯かる膨潤質多孔性スペーサ１２の上面には、上記電極
パターン１１と対向する面に他の電極パターン１４を形
成したフィルム基材１３からなる可撓性電極板を配装し
であるが、該可撓性電極板は膨潤質多孔性スペーサ１２
の各孔に過剰に供給した分散系７を可撓性電極板の上面
から押圧力を作用させて該スペーサＩ２に密４さぜなが
ら余分な分散系７を押し出すことにより、膨潤質多孔性
スペーサ１２の各孔に空孔のない分散系７の完全な封入
を行なわせる為のものである。なお、１７は構成部材間
をそれらの端部で固定接合する為の接着剤を示す。A flexible electrode plate made of a film base material 13 with another electrode pattern 14 formed on the surface facing the electrode pattern 11 is disposed on the upper surface of the swellable porous spacer 12. The flexible electrode plate is a swellable porous spacer 12.
By applying a pressing force to the dispersion system 7 supplied in excess to each hole of the flexible electrode plate from the upper surface of the flexible electrode plate and pushing out the excess dispersion system 7 while tightly stirring it into the spacer I2, a swellable porous spacer is formed. This is to completely enclose the dispersion system 7 without pores in each of the 12 pores. Note that 17 indicates an adhesive for fixedly joining the constituent members at their ends.
上記の分散系分割型の電気泳動表示装置を製作するには
、透明ガラス板１０及び透明電極パターン１１からなる
剛体電極板の該電極パターンｌｌ上にスクリーン印刷手
段等で膨潤質多孔性スペーサ１２を形成した後、表示目
的に最適な如（適宜な液体分散媒に酸化チタン等の電気
泳動粒子を分散させ−Ｃ予め調製した分散系７を膨潤質
多孔性スペーサ］２に所要量以上に過剰に供給して該ス
ペサＩ２をこの分散系７で完全に覆っておく６分散系７
は、分散媒として、ヘキシルベンゼンｔｏｏ ｃｅを用
、危し、これにオイルブルー１１Ａからなる濃紺の染料
１ｇとシルパンＳＩ’１３からなる界面活性剤０．５
ｇとを溶かし、この溶媒に電気泳動粒子として酸化チタ
ン５ｇを分散させることによりこの分散系を調製するこ
とが出来る。In order to manufacture the above dispersion type electrophoretic display device, a swellable porous spacer 12 is formed on the electrode pattern 11 of a rigid electrode plate consisting of a transparent glass plate 10 and a transparent electrode pattern 11 by screen printing means or the like. After the formation, the electrophoretic particles such as titanium oxide are dispersed in an appropriate liquid dispersion medium and the pre-prepared dispersion system 7 is applied to the swellable porous spacer 2 in an excess amount more than the required amount for the purpose of display. 6 dispersion system 7 to completely cover the spacer I2 with this dispersion system 7
used hexylbenzene too much as a dispersion medium, and added 1 g of a dark blue dye made of Oil Blue 11A and 0.5 g of a surfactant made of Silpan SI'13.
This dispersion system can be prepared by dissolving 5 g of titanium oxide as electrophoretic particles in this solvent.
次いで、可撓性電極板をその電極パターン１４が剛体電
極板の電極パターン１１と対面するように膨潤質多孔性
スペーサ１２に重ね合わせた状態で可撓性電極板の上面
側に加圧ローラ等の押圧力を作用させその一端部から順
次的に弾圧力を加太ると、可撓性電極板は膨潤質多孔性
又ペーサ１２に十分に押し付けられて密着する。これに
にす、膨潤質多孔性スペーサ１２に対し過剰に供給され
た余分な分散系は該スペーサ１２の各孔から押し出され
て分散系７の適正な封入処理が行われる。Next, the flexible electrode plate is superimposed on the swelling porous spacer 12 so that its electrode pattern 14 faces the electrode pattern 11 of the rigid electrode plate, and a pressure roller or the like is applied to the upper surface of the flexible electrode plate. When the pressing force is applied and the elastic force is increased sequentially from one end, the flexible electrode plate is sufficiently pressed against the swollen porous spacer 12 and comes into close contact with it. In this case, the excess dispersion system supplied in excess to the swellable porous spacer 12 is extruded from each hole of the spacer 12, and the dispersion system 7 is properly encapsulated.
そして、接着剤１７を用いて剛体電極板、膨潤質多孔性
スペーサ１２及び可撓性電極板の各外周端部を相互に接
着固定すると、膨潤質多孔性スペーサ１２の光間作用に
よって該スペーサ１２が可撓性電極板に押し付けられて
この封止状態が機械的に補強され、これにより空孔のな
い分割型分散系の完全な１・１人処理を容易迅速に施す
ことが出来る。Then, when the outer peripheral ends of the rigid electrode plate, the swellable porous spacer 12 and the flexible electrode plate are bonded and fixed to each other using the adhesive 17, the spacer 12 is is pressed against the flexible electrode plate to mechanically reinforce this sealed state, thereby making it possible to easily and quickly perform complete one-person processing of a porosity-free split-type dispersion system.
分散系７に用いる電気泳動粒子は、酸化チタンや周知の
各種のコロイド粒子のほか、（Φ々の有機、無機質顔料
、染料、セラミックス若しくは樹脂等の微粉末などを適
宜使用できる。また、分散系７の分散媒には、炭化水素
、ハロゲン化炭化水素、芳香族炭化水素等の他、天然又
は合成の各種の油等を任意使用できる。そして、分散系
７には必要に応じ、電解質、界面活性剤、金属石けんや
樹脂、ゴム、油、ワニス、コンパウンド等の粒子からな
る荷電制御剤に加え、分散剤、潤滑剤、安定化剤等を適
宜添加できる。更に、電気泳動粒子の荷電を正又は負に
統一したり、ゼータ電位を高める手段の伯、電気泳動粒
子の電極パターン１１．１４に対する吸着性や分散媒の
粘度等の調整も適宜行える。As the electrophoretic particles used in the dispersion system 7, in addition to titanium oxide and various well-known colloid particles, fine powders of organic or inorganic pigments, dyes, ceramics, resins, etc. (Φ) can be used as appropriate. In addition to hydrocarbons, halogenated hydrocarbons, aromatic hydrocarbons, etc., various natural or synthetic oils can be optionally used as the dispersion medium in step 7. Electrolytes, interfaces, etc. can be used in the dispersion system 7 as necessary. In addition to charge control agents consisting of particles of activators, metal soaps, resins, rubbers, oils, varnishes, compounds, etc., dispersants, lubricants, stabilizers, etc. can be added as appropriate. Alternatively, it is possible to make the zeta potential uniformly negative, adjust the means for increasing the zeta potential, the adsorption of electrophoretic particles to the electrode patterns 11, 14, the viscosity of the dispersion medium, etc. as appropriate.
「発明の効果」
本発明による電気泳動表示装置は、可撓性電極板の一端
から押圧力を順次作用させなから膨潤質多孔性スペーサ
にこの可撓性電極板を順次密着させて余分な分散系を押
し出すように構成したので、残存空孔を生じさせること
なく、膨潤質多孔性スペーサの番孔に分散系を確実に封
入でき、従って分散系の分割型封入処理を能率よく短時
間に容易確実に行える。"Effects of the Invention" The electrophoretic display device according to the present invention does not sequentially apply pressing force from one end of the flexible electrode plate, but sequentially brings the flexible electrode plate into close contact with the swelling porous spacer to eliminate excess dispersion. Since the system is configured to extrude the dispersion system, the dispersion system can be reliably encapsulated in the holes of the swellable porous spacer without creating residual pores. Therefore, the split-type encapsulation process of the dispersion system can be carried out efficiently, quickly and easily. You can definitely do it.
膨潤質多孔性スペーサの膨潤作用により、機械的に強固
な封止状態を保持できる。Due to the swelling action of the swellable porous spacer, a mechanically strong sealing state can be maintained.
対向する両型極板双方をＩＴＯガラス板等からなる剛体
で作製した場合には、多孔質スペーサの膨潤量と電極板
間ギャップとを最適に設定しないと、膨潤量の過大の場
合には電極板が割れる等の問題があるが、電極板の一方
を可撓性に構成することにより、スペーサの膨潤量に対
応して可撓性電極板が変形し、斯かる破損を防止できる
。When both opposing types of electrode plates are made of rigid bodies such as ITO glass plates, if the swelling amount of the porous spacer and the gap between the electrode plates are not set optimally, if the swelling amount is excessive, the electrode Although there is a problem such as the plate breaking, by configuring one of the electrode plates to be flexible, the flexible electrode plate deforms in accordance with the amount of swelling of the spacer, and such breakage can be prevented.
第１図は本発明の一実施例に従って透明剛体電極板と可
撓性電極板との間に膨潤質多孔性スペーサを具備するよ
うに構成した分散系分割型の電気泳動表示装置の概念的
な拡大断面構成図を示し、そして。
第２図は多孔性スペーサを使用しない従来の構造による
分散系連続相型の電気泳動表示装置の概念的断面構成図
である。
ｌ 、 ３ ： 透 明 ガ ラ ス 板２．
４：電極パターン
５：端部スペーサ
６：電気泳動粒子
７：表示用分散系
ｌＯ：透明ガラス板
１１：電極パターン
１２： 膨潤質多孔性スペーサ
ｌ ３ ： フ ィ ル ム 基 材１
４：電極パターン
１７：固定用接着剤FIG. 1 is a conceptual diagram of a dispersion type electrophoretic display device configured to include a swellable porous spacer between a transparent rigid electrode plate and a flexible electrode plate according to an embodiment of the present invention. An enlarged cross-sectional configuration diagram is shown, and. FIG. 2 is a conceptual cross-sectional configuration diagram of a dispersed continuous phase type electrophoretic display device having a conventional structure that does not use a porous spacer. L, 3: Transparent glass plate 2.
4: Electrode pattern 5: End spacer 6: Electrophoretic particles 7: Dispersion system for display 1O: Transparent glass plate 11: Electrode pattern 12: Swelling porous spacer 1 3: Film base material 1
4: Electrode pattern 17: Fixing adhesive
Claims (2)
配置した電極板間に多孔性スペーサを介して電気泳動粒
子を分散させた分散系を不連続相に分割して封入する構
造の電気泳動表示装置に於いて、上記分散系を不連続に
分割する手段として上記電極板間に介装した膨潤質多孔
性スペーサを備え、上記対向電極板の一方を該膨潤質多
孔性スペーサに密着可能な可撓性に構成すると共に、他
の電極板を透明な剛体で構成したことを特徴とする電気
泳動表示装置。(1) An electric structure in which a dispersion system in which electrophoretic particles are dispersed is divided into discontinuous phases and sealed between a pair of opposing electrode plates, at least one of which is transparent, via a porous spacer. The electrophoretic display device includes a swellable porous spacer interposed between the electrode plates as a means for discontinuously dividing the dispersion system, and one of the opposing electrode plates can be brought into close contact with the swellable porous spacer. What is claimed is: 1. An electrophoretic display device characterized by having a flexible structure, and in which another electrode plate is made of a transparent rigid body.
の電極パターンを各々形成した可撓性電極板と透明な剛
体電極板とを用意し、該剛体電極板の電極パターン側に
配装した膨潤質多孔性スペーサに対し電気泳動粒子を分
散させた分散系を過剰に供給した後、上記可撓性電極板
をその電極パターンが上記剛体電極板の電極パターンと
対面するように上記膨潤質多孔性スペーサ上に配装し、
次に上記可撓性電極板の上面にその一端から押圧力を順
次付与して該可撓性電極板を上記膨潤質多孔性スペーサ
に密着させて余分な分散系を押し出し、該多孔性スペー
サの膨潤作用によりその各孔に上記分散系を封入保持す
ることを特徴とする電気泳動表示装置の製造法。(2) A flexible electrode plate and a transparent rigid electrode plate each having a required electrode pattern formed on one side of a film member and a transparent glass plate were prepared, and arranged on the electrode pattern side of the rigid electrode plate. After supplying an excessive amount of a dispersion system in which electrophoretic particles are dispersed to the swellable porous spacer, the flexible electrode plate is placed in the swellable porous spacer so that its electrode pattern faces the electrode pattern of the rigid electrode plate. arranged on the sexual spacer,
Next, a pressing force is sequentially applied to the upper surface of the flexible electrode plate from one end to bring the flexible electrode plate into close contact with the swelling porous spacer, extruding the excess dispersion system, and removing the porous spacer. A method for manufacturing an electrophoretic display device, characterized in that the dispersion system is sealed and held in each pore by a swelling action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1043610A JP2733679B2 (en) | 1989-02-25 | 1989-02-25 | Electrophoretic display device and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1043610A JP2733679B2 (en) | 1989-02-25 | 1989-02-25 | Electrophoretic display device and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02223935A true JPH02223935A (en) | 1990-09-06 |
| JP2733679B2 JP2733679B2 (en) | 1998-03-30 |
Family
ID=12668604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1043610A Expired - Lifetime JP2733679B2 (en) | 1989-02-25 | 1989-02-25 | Electrophoretic display device and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2733679B2 (en) |
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|---|---|---|---|---|
| US6017584A (en) * | 1995-07-20 | 2000-01-25 | E Ink Corporation | Multi-color electrophoretic displays and materials for making the same |
| US6120588A (en) * | 1996-07-19 | 2000-09-19 | E Ink Corporation | Electronically addressable microencapsulated ink and display thereof |
| US6323989B1 (en) | 1996-07-19 | 2001-11-27 | E Ink Corporation | Electrophoretic displays using nanoparticles |
| US6524153B1 (en) | 1999-05-14 | 2003-02-25 | Canon Kabushiki Kaisha | Process for producing display device |
| US6538801B2 (en) | 1996-07-19 | 2003-03-25 | E Ink Corporation | Electrophoretic displays using nanoparticles |
| US6639578B1 (en) | 1995-07-20 | 2003-10-28 | E Ink Corporation | Flexible displays |
| US7184196B2 (en) | 2003-01-29 | 2007-02-27 | Canon Kabushiki Kaisha | Process for producing electrophoretic display |
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| US9005494B2 (en) | 2004-01-20 | 2015-04-14 | E Ink Corporation | Preparation of capsules |
| US9268191B2 (en) | 1997-08-28 | 2016-02-23 | E Ink Corporation | Multi-color electrophoretic displays |
| US9293511B2 (en) | 1998-07-08 | 2016-03-22 | E Ink Corporation | Methods for achieving improved color in microencapsulated electrophoretic devices |
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1989
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|---|---|---|---|---|
| US6017584A (en) * | 1995-07-20 | 2000-01-25 | E Ink Corporation | Multi-color electrophoretic displays and materials for making the same |
| US6639578B1 (en) | 1995-07-20 | 2003-10-28 | E Ink Corporation | Flexible displays |
| US6120588A (en) * | 1996-07-19 | 2000-09-19 | E Ink Corporation | Electronically addressable microencapsulated ink and display thereof |
| US6323989B1 (en) | 1996-07-19 | 2001-11-27 | E Ink Corporation | Electrophoretic displays using nanoparticles |
| US6422687B1 (en) | 1996-07-19 | 2002-07-23 | E Ink Corporation | Electronically addressable microencapsulated ink and display thereof |
| US6538801B2 (en) | 1996-07-19 | 2003-03-25 | E Ink Corporation | Electrophoretic displays using nanoparticles |
| US6652075B2 (en) | 1996-07-19 | 2003-11-25 | E Ink Corporation | Electronically addressable microencapsulated ink and display thereof |
| US9268191B2 (en) | 1997-08-28 | 2016-02-23 | E Ink Corporation | Multi-color electrophoretic displays |
| US9293511B2 (en) | 1998-07-08 | 2016-03-22 | E Ink Corporation | Methods for achieving improved color in microencapsulated electrophoretic devices |
| US6729924B2 (en) | 1999-05-14 | 2004-05-04 | Tsutomu Ikeda | Process for producing display device |
| US6524153B1 (en) | 1999-05-14 | 2003-02-25 | Canon Kabushiki Kaisha | Process for producing display device |
| US7184196B2 (en) | 2003-01-29 | 2007-02-27 | Canon Kabushiki Kaisha | Process for producing electrophoretic display |
| US9740076B2 (en) | 2003-12-05 | 2017-08-22 | E Ink Corporation | Multi-color electrophoretic displays |
| US9829764B2 (en) | 2003-12-05 | 2017-11-28 | E Ink Corporation | Multi-color electrophoretic displays |
| US9005494B2 (en) | 2004-01-20 | 2015-04-14 | E Ink Corporation | Preparation of capsules |
| US11733580B2 (en) | 2010-05-21 | 2023-08-22 | E Ink Corporation | Method for driving two layer variable transmission display |
| CN103792735A (en) * | 2014-01-22 | 2014-05-14 | 京东方科技集团股份有限公司 | Mat object, liquid crystal display panel with mat object and display device with mat object |
| CN103792735B (en) * | 2014-01-22 | 2016-08-24 | 京东方科技集团股份有限公司 | Chock insulator matter, the liquid crystal panel applying it and display device |
| US9897862B2 (en) | 2014-01-22 | 2018-02-20 | Boe Technology Group Co., Ltd. | Spacer comprising first and third portions made of a rigid material and a second portion made of a flexible material, liquid crystal panel comprising the same, and display device |
| WO2015109743A1 (en) * | 2014-01-22 | 2015-07-30 | 京东方科技集团股份有限公司 | Spacer, liquid crystal panel comprising spacer and display device |
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