JPS6318754B2 - - Google Patents
Info
- Publication number
- JPS6318754B2 JPS6318754B2 JP54144773A JP14477379A JPS6318754B2 JP S6318754 B2 JPS6318754 B2 JP S6318754B2 JP 54144773 A JP54144773 A JP 54144773A JP 14477379 A JP14477379 A JP 14477379A JP S6318754 B2 JPS6318754 B2 JP S6318754B2
- Authority
- JP
- Japan
- Prior art keywords
- sphere
- liquid
- cavity
- sheet
- display
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 40
- 239000011248 coating agent Substances 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 239000011521 glass Substances 0.000 description 12
- 230000005684 electric field Effects 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 7
- 239000000806 elastomer Substances 0.000 description 7
- 239000010931 gold Substances 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】
本発明は、表示装置、特に、球体回転表示装置
とその製法に係わる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, and particularly to a rotating sphere display device and a manufacturing method thereof.
球体回転表示装置は、例えば半球面が白色、他
の半球面が黒色であるように、着色などによつて
互に異る色で夫々部分的に色分けされた多数の表
示用球体が、透明支持体中に、夫々回転自在に単
層、或いは多層に配列支持され、外部電界、或い
は磁界によつて、これら球体の一部或いは全部を
回転させて、各一の色分け部分を観察側に向けて
各種表示を行うようになされる。この場合、球体
の自重による沈積や凝集などによつて球体の回転
が妨げられるようなことがないように、各球体
は、夫々独立した空洞（キヤビテイ）内に夫々１
個ないしは数個ずつ挿入配置される。これら表示
用球体は、キヤビテイ内に、これら球体とみかけ
上の比重が近い液体を介して配置される。すなわ
ち、球体は液体中に浸漬されて保持される。この
構成において、キヤビテイ中の液体の種類を適当
に選定し、また、表示用球体の表面材料を適当に
選定すれば、球体表面の帯電状態を選定すること
ができる。すなわち、共通の液体中においても、
球体の各色分け部分の表面材料、例えば着色材料
が異るようになされれば、色分け部分相互の帯電
状態を異ならしめて相互に逆極性とすることがで
きる。外部電界によつてその表示を行うようにす
るいわゆる電界型球体回転表示装置においては、
このように一半球面と他半球面とが色分けされる
と共に、液体中で互に逆極性の帯電状態とされた
表示用球体を構成し、これに外部電界を与えるこ
とによつて観察側に対し、所要の色分け部分が対
向するように球体を回転させることによつてその
表示を行う。この表示装置は、N.Sheridon and
M.BerkovitzによつてProceeding of the S.I.D
vol.18／3and4（1977）289で報告されているとこ
ろである。その製造方法は、直径約40μｍの白色
不透明ガラス球の半球面上に真空蒸着法により非
電気伝導性の黒色物質の膜をコートする。これら
球体を硬化前のエラストマーと混合し、薄いシー
ト状に成形後熱硬化させる。次にこのエラストマ
ーシートを例えば有機溶媒、或いは油のような誘
電液体中に浸す。この液体は可塑剤として働き、
エラストマーを膨潤させる。このエラストマーは
ほぼ均質に膨潤するから各球体の周囲に空洞が生
じ、同時にこの空洞内は上記液体によつて満さ
れ、球体は、結果的にこの空洞内に液体を介して
配置され、球体は空洞内に自由に回転できるよう
に支持される。このようにして、第１図に示すよ
うに、例えば半球面毎に色分けされた球体が、
夫々空洞２に液体３を介して封入されたエラスト
マーシート４を得る。そして、このエラストマー
シート４を、夫々例えば透明ガラス基板５ａ及び
５ｂに、透明電極６ａ及び６ｂを被着して成る対
の電極基板７ａ及び７ｂ間に挾み込む。そして、
切換スイツチSWによつて両電極６ａ及び６ｂに
対する印加電圧の極性を適当に選定すれば、これ
に応じて上述したメカニズムによつて球体１の回
転位置が選定されるのでこれによつて表示を行う
ことができる。 A rotating sphere display device consists of a large number of display spheres that are partially colored in different colors, such as one hemisphere being white and the other hemisphere being black, mounted on a transparent support. The spheres are arranged and supported in a single layer or in multiple layers in a rotatable manner within the body, and some or all of these spheres are rotated by an external electric field or magnetic field, so that each color-coded part faces the observation side. It is configured to perform various displays. In this case, to prevent rotation of the spheres from being hindered by sedimentation or agglomeration due to their own weight, each sphere is placed in an independent cavity.
They are inserted one or several at a time. These display spheres are placed in the cavity via a liquid whose apparent specific gravity is similar to that of these spheres. That is, the sphere is immersed and held in the liquid. In this configuration, if the type of liquid in the cavity is appropriately selected and the surface material of the display sphere is appropriately selected, the charging state of the surface of the sphere can be selected. That is, even in common liquids,
If the surface materials of the color-coded portions of the sphere, for example, the colored materials, are made different, the charge states of the color-coded portions can be made different and have opposite polarities. In the so-called electric field type spherical rotation display device that displays information using an external electric field,
In this way, one hemisphere surface and the other hemisphere surface are color-coded, and the display sphere is charged with opposite polarity in the liquid, and by applying an external electric field to it, it is possible to display , the display is performed by rotating the sphere so that the required color-coded parts face each other. This display device is N.Sheridon and
Proceeding of the SID by M. Berkovitz
This is reported in vol.18/3and4 (1977) 289. The manufacturing method involves coating the hemispherical surface of a white opaque glass sphere with a diameter of about 40 μm with a film of a non-electrically conductive black material by vacuum deposition. These spheres are mixed with uncured elastomer, formed into a thin sheet, and then heat cured. The elastomer sheet is then immersed in a dielectric liquid, such as an organic solvent or oil. This liquid acts as a plasticizer,
Swell the elastomer. Since the elastomer swells almost homogeneously, a cavity is created around each sphere, and at the same time this cavity is filled with the liquid, and the sphere is consequently placed in this cavity via the liquid, and the sphere is It is supported for free rotation within the cavity. In this way, as shown in Figure 1, for example, a sphere whose hemisphere is color coded,
An elastomer sheet 4 is obtained in which each cavity 2 is sealed with a liquid 3 interposed therebetween. The elastomer sheet 4 is then sandwiched between a pair of electrode substrates 7a and 7b, each of which is formed by covering transparent electrodes 6a and 6b on transparent glass substrates 5a and 5b, respectively. and,
If the polarity of the voltage applied to both electrodes 6a and 6b is appropriately selected using the changeover switch SW, the rotational position of the sphere 1 is selected according to the above-mentioned mechanism, and the display is thereby performed. be able to.
ところが、実際上、このような製造方法と、こ
れによつて得た表示装置には種々の問題点があ
る。すなわち、上述の製造方法による場合、エラ
ストマーの膨潤によつて空洞２を形成し、しかも
この膨潤を生じさせる液体によつてこれと球体と
の界面で帯電状態を形成するので、これに用い得
る液体の種類は制限される。一方、このように固
液界面の帯電状態を利用した表示装置では、その
特性が使用する液体の性質、すなわち溶媒物質、
添加物質に大きく依存するので、使用できる液体
に制限があることは、特性改善の隘路となる。ま
た、膨潤状態は温度に大きく依存するので、実際
上、各部一様の大きさで且つ優れた形状、すなわ
ち一定の直径を有する正円球状の空洞２を形成
し、製品毎にばらつきの少い特性を有する表示装
置を再現性良く得ることが難しいという欠点があ
る。 However, in practice, such a manufacturing method and the display device obtained thereby have various problems. That is, in the case of the above manufacturing method, the cavity 2 is formed by the swelling of the elastomer, and the liquid that causes this swelling forms a charged state at the interface between the cavity and the sphere, so the liquid that can be used for this purpose is types are limited. On the other hand, in a display device that utilizes the charged state of the solid-liquid interface, its characteristics depend on the properties of the liquid used, that is, the solvent substance,
Since it largely depends on the additives, the fact that there is a limit to the liquid that can be used is a bottleneck in improving the properties. In addition, since the state of swelling is highly dependent on temperature, in practice, each part has a uniform size and excellent shape, that is, a perfectly round spherical cavity 2 with a constant diameter is formed, and there is little variation from product to product. There is a drawback that it is difficult to obtain a display device having these characteristics with good reproducibility.
本発明は、このような欠点を解消した表示装置
と、その製法を提供するものである。 The present invention provides a display device that eliminates these drawbacks, and a method for manufacturing the same.
第２図を参照して本発明による表示装置の一例
を本発明製法の一例と共に詳細に説明する。 An example of the display device according to the present invention will be described in detail with reference to FIG. 2, together with an example of the manufacturing method of the present invention.
先ず、第２図に示すように、絶縁体（誘電体）
より成る多数の小球体１１を用意する。この小球
体１１は、例えば直径が70μｍ程度で表面が滑面
とされた結晶化ガラスより成る白色不透明ガラス
球体を用い得る。そして、これら球体１１の表面
を、ほぼ半球面毎に色分けして、第１の区分１２
ａと第２の区分１２ｂとを形成する。これら色分
け区分１２ａ及び１２ｂの形成は、例えば真空蒸
着によつて行い得る。第３図はこの真空蒸着の一
態様を示すもので、この場合、図示しないが真空
ベルジヤ内に、ヒータ１３によつて加熱される基
台１４が配置され、これより十分離間した上方
に、着色のための蒸着源、例えば銅・フタロシア
ニンの蒸着源１５が配置される。１６は基台１４
に配置された熱電対で、基台１４の温度を検出
し、これを所定の温度例えば300℃に保持するに
供する。基台１４上に小球体１１を１層に配列
し、蒸着源１５から球体１１に向つて真空蒸着を
行い各小球体１１の、蒸着源１５と対向する側の
ほぼ半球面に銅・フタロシアニンの蒸着膜すなわ
ち青色の着色面を形成し、各球体１１の表面に、
蒸着膜が形成されて着色（この例では青色の着
色）がなされた区分１２ａと、蒸着膜が被着され
ない白色の区分１２ｂとを夫々半球面に形成す
る。 First, as shown in Figure 2, an insulator (dielectric)
A large number of small spheres 11 consisting of the following are prepared. As the small sphere 11, a white opaque glass sphere made of crystallized glass and having a diameter of about 70 μm and a smooth surface can be used, for example. Then, the surfaces of these spheres 11 are color-coded approximately for each hemisphere, and divided into first divisions 12.
a and a second section 12b. The formation of these color-coded sections 12a and 12b can be carried out, for example, by vacuum deposition. FIG. 3 shows one embodiment of this vacuum evaporation. In this case, although not shown, a base 14 heated by a heater 13 is placed in a vacuum bellgear, and above the base 14, which is sufficiently spaced apart, For example, a vapor deposition source 15 for copper/phthalocyanine is arranged. 16 is the base 14
The temperature of the base 14 is detected by a thermocouple placed at the base 14, and is maintained at a predetermined temperature, for example, 300°C. The small spheres 11 are arranged in one layer on the base 14, and vacuum evaporation is performed from the evaporation source 15 toward the spheres 11. Copper/phthalocyanine is deposited on the almost hemispherical surface of each small sphere 11 on the side facing the evaporation source 15. A vapor deposited film, that is, a blue colored surface, is formed on the surface of each sphere 11,
A section 12a where a vapor deposited film is formed and colored (in this example, colored blue) and a white section 12b where no vapor deposited film is formed are each formed into a hemispherical surface.
次に、このように、夫々着色処理を施した球体
１１の全表面に可溶性のコート剤、例えばワツク
スを被覆する。このコート剤の被覆は、例えばス
ロツトワツクス（日化精工の商品名）に適当量混
合する。この場合は、ワツクスの溶融状態で行
い、この混合物を第４図に示すように、加熱手段
１７を具備する容器１８に収容し、この容器１８
に設けられたノズル１９から球体１１を落下させ
る。一方、同様に加熱手段２０を具備するノズル
２１を設け、このノズル２１から空気等の気体、
好ましくはN2ガスのような不活性ガスを、容器
１８より落下する球体１１に向つて吹きつける。
このような方法において、容器１８からの球体１
１の落下速度、（この落下速度は実際上容器１８
のノズル１９の温度を選定することによつて選定
できる）や、吹きつけガスの流速及び温度の選定
によつて第５図に示すように球体１１の全表面に
所定の厚さ、例えば10μｍの厚さをもつてワツク
スコート２２を被着させることができる。 Next, the entire surface of each of the spheres 11 which has been colored in this manner is coated with a soluble coating agent, such as wax. A suitable amount of this coating agent is mixed into, for example, slot wax (trade name of Nikka Seiko). In this case, the wax is in a molten state, and the mixture is placed in a container 18 equipped with a heating means 17, as shown in FIG.
A sphere 11 is dropped from a nozzle 19 provided at. On the other hand, a nozzle 21 similarly equipped with a heating means 20 is provided, and from this nozzle 21 gas such as air,
Preferably, an inert gas such as N 2 gas is blown toward the sphere 11 falling from the container 18 .
In such a method, spheres 1 from container 18
1 falling speed, (this falling speed is actually the container 18
(can be selected by selecting the temperature of the nozzle 19) or by selecting the flow rate and temperature of the blown gas, the entire surface of the sphere 11 is coated with a predetermined thickness, for example, 10 μm, as shown in FIG. The wax coat 22 can be applied with a certain thickness.
次に、この表面コート２２が施された球体１１
を、支持体、例えばポリビニルアルコール
（PVA）シート中に、例えば塩化ビニル−酢酸ビ
ニルの共重合体粉末よりなる粉末充填物と共に混
入分散させる。この支持シートは、例えばけん化
度が88のPVAの約15重量％の水溶液に、コート
２２に対する溶剤と同一の溶剤に対し可溶性を有
するも粉末充填物、例えば塩化ビニル−酢酸ビニ
ル共重合体粉末の充填物（粒子サイズ約数μｍ）
を、PVAに対し体積比で、1.5倍を混合分散させ
た後に、ワツクスコート２２を施した球体１１を
適当量混合し、撹拌によつて分散させた状態でガ
ラス板上に流し出し、充分水分を乾燥させて球体
１１が数層程度に包持する表示球体の支持体、こ
の例では支持シートを作成する。そして、このシ
ートをガラス板から剥離し、シート中の充填物
と、球体１１のコート２２とに対する溶剤、例え
ばトルエン中に浸漬して洗浄溶出効果を上げるた
めに超音波を与え、シート中の粉末充填物と、ワ
ツクスコート２２をトルエン中に溶出させる。そ
の後、シートをトルエン溶液中からとり出し、シ
ートに附着しているトルエンを充分乾燥させる。
この溶去過程は、先ずシート表面に臨み、溶剤の
トルエンと接触する粉末充填物、或いは球体１１
のコート２２が溶剤中に溶去され、これの溶去に
よつて生じた空孔を通じてこれに隣接する粉末充
填物、或いはコート２２が溶去されて順次シート
内部に進行するものである。その結果、第６図に
示すように、粉末充填物の除去によつて表面に連
通する連続多孔２３が形成され、球体１１のコー
ト２２が溶去されたことによつて、球体１１を内
蔵し、このコート２２の厚さに対応する分だけ球
体の半径より大なる半径の空洞２４が配置され、
これら空洞２４間が連続多孔２３によつて連通
し、更にこれら空洞２４自体、或いは連続多孔２
３を通じて表面に連通されたPVAの球体シート
２５が構成される。 Next, the sphere 11 to which this surface coating 22 has been applied
is mixed and dispersed in a support, for example a polyvinyl alcohol (PVA) sheet, together with a powder filler consisting of, for example, a vinyl chloride-vinyl acetate copolymer powder. This support sheet may contain a powder filler, such as vinyl chloride-vinyl acetate copolymer powder, which is soluble in the same solvent as that for coat 22, for example in an aqueous solution of about 15% by weight of PVA with a saponification degree of 88. Filler (particle size approximately several μm)
After mixing and dispersing PVA in a volume ratio of 1.5 times, an appropriate amount of spheres 11 coated with wax coat 22 is mixed, and the dispersed state is poured out onto a glass plate by stirring to thoroughly remove moisture. By drying, a display sphere support, in this example a support sheet, in which the spheres 11 are enclosed in several layers is created. Then, this sheet is peeled off from the glass plate, and ultrasonic waves are applied to the filler in the sheet and the coating 22 of the spheres 11 by immersing it in a solvent such as toluene to increase the cleaning and elution effect. The fill and wax coat 22 are eluted into toluene. Thereafter, the sheet is taken out of the toluene solution and the toluene adhering to the sheet is sufficiently dried.
This dissolution process first involves the powder filling or spheres 11 facing the sheet surface and coming into contact with the solvent toluene.
The coat 22 is dissolved into the solvent, and through the pores created by this dissolution, the powder filler or coat 22 adjacent thereto is dissolved and sequentially advances into the sheet. As a result, as shown in FIG. 6, continuous pores 23 communicating with the surface are formed by removing the powder filler, and the coating 22 of the sphere 11 is dissolved away, so that the sphere 11 is contained inside. , a cavity 24 with a radius larger than the radius of the sphere is arranged by an amount corresponding to the thickness of the coat 22,
These cavities 24 communicate with each other through continuous pores 23, and furthermore, these cavities 24 themselves or the continuous pores 2
A spherical sheet 25 of PVA communicates with the surface through 3.
次に、第７図に示すように、このシート２５の
球体１１が収容された空洞２４内にに、球体１１
との接触によつて、その界面に、球体１１の両区
分に対して異る帯電状態を形成する光透過性液体
２６を注入すると共に、このシート２５を挾んで
電極板２７ａ及び２７ｂを配置する。電極板２７
ａ及び２７ｂは、その少くとも一方の表示の観察
側に位置する電極板をその表示の観察を可能にす
る光透過性の電極とする。これら電極板２７ａ及
び２７ｂは、例えば光透過性のガラス基板２９ａ
及び２９ｂの各内面に光透過性の導電膜が被着さ
れた電極膜３０ａ及び３０ｂを有する構造となし
得る。このようにして本発明による表示装置２
８、特に電界型球体回転表示装置が構成される。 Next, as shown in FIG.
A light-transmitting liquid 26 is injected into the interface, which forms a different charging state for both sections of the sphere 11 by contact with the sheet 25, and electrode plates 27a and 27b are placed between the sheets 25. . Electrode plate 27
The electrode plates a and 27b located on the viewing side of at least one of the displays are light-transmissive electrodes that enable observation of the display. These electrode plates 27a and 27b are, for example, a light-transmissive glass substrate 29a.
and 29b may have a structure including electrode films 30a and 30b, each of which has a light-transmissive conductive film adhered to its inner surface. In this way, the display device 2 according to the invention
8. In particular, an electric field type sphere rotating display device is constructed.
シート２５に対する液体２６の注入は、例えば
第８図に示すように前述した対の電極板２７ａ及
び２７ｂ間に、第６図で説明した連続多孔２３及
び空洞２４が形成されたシート２５を挾み込み、
電極板２７ａ及び２７ｂの周辺部間に例えば環状
のスペーサ３１を介存させてエポキシ樹脂等によ
つて気密的に封止する。一方、このようにして電
極板２７ａ及び２７ｂ間に形成され、シート２５
が配置された気密空間３２に、例えばスペーサ３
１を貫通して少くとも対のパイプ３３及び３４を
シート２５を挾んで相対向する位置において連通
させる。そして、一方のパイプ３３を、図示しな
いが真空ポンプすなわち排気装置に連結し、他方
のパイプ３４を通じて密閉空間３２内に、前述の
液体２６、例えばステアリン酸が10-4〜10-3モ
ル／のトルエン液を供給する。このようにする
と、液体２６はシート２５中の連続多孔２３及び
空洞２４中に吸引される。このようにして球体１
１を内蔵する空洞２４内に液体２６が充填され、
この液体２６が空洞２４の内周壁と球体１１との
間に介存され球体１１は、空洞２４内において液
体２６の適当な流動性と粘性とによつて円滑に回
転できるようになされる。そして、このようにシ
ート２５にに対する液体２６の注入を行つて後、
パイプ３３及び３４を排除し、その貫通部を気密
封止する。 The liquid 26 is injected into the sheet 25 by, for example, sandwiching the sheet 25 in which the continuous pores 23 and cavities 24 described in FIG. 6 are formed between the pair of electrode plates 27a and 27b as shown in FIG. included,
For example, an annular spacer 31 is interposed between the peripheral portions of the electrode plates 27a and 27b, and the electrode plates 27a and 27b are hermetically sealed with epoxy resin or the like. On the other hand, the sheet 25 formed between the electrode plates 27a and 27b in this way
For example, a spacer 3 is placed in an airtight space 32 in which
1 to connect at least a pair of pipes 33 and 34 at opposite positions with the sheet 25 sandwiched therebetween. One pipe 33 is connected to a vacuum pump, that is, an exhaust device (not shown), and the liquid 26, for example, stearic acid, is introduced into the closed space 32 through the other pipe 34 at a concentration of 10 -4 to 10 -3 mol/. Supply toluene liquid. In this way, liquid 26 is drawn into continuous pores 23 and cavities 24 in sheet 25. In this way, sphere 1
A liquid 26 is filled in a cavity 24 containing 1,
This liquid 26 is interposed between the inner circumferential wall of the cavity 24 and the sphere 11, and the sphere 11 is allowed to rotate smoothly within the cavity 24 due to the appropriate fluidity and viscosity of the liquid 26. After injecting the liquid 26 into the sheet 25 in this way,
Pipes 33 and 34 are removed and their penetrations hermetically sealed.
このようにして得られた表示装置２８は、上述
したように、液体２６によつて球体１１が円滑に
回転できるようになされると共に、球体１１の上
述したように例えば銅・フタロシアニンの選択的
蒸着によつて色彩表示区分１２ａ及び１２ｂを形
成したことによつて半球区分１２ａ及び１２ｂ毎
に異る表面素材を有することによつて液体２６と
の界面に両区分１２ａ及び１２ｂに関して互に異
る極性の帯電状態が形成される。したがつて、両
電極３０ａ及び３０ｂ間にその極性を選定して電
圧を与え、シート２５に例えば104V／cmの直流
電界を掛ければ、球体１１はその表面に形成され
る帯電極性に応じて電極３０ａ或いは３０ｂ側に
何れか一方の区分１２ａ或いは１２ｂが対向する
ように回転され、電極板２７ａ又は２７ｂ側から
これを観察することができる。すなわち、表示を
行うことができる。そして、この構造において、
例えば何れか少くとも一方の電極３０ａ，３０ｂ
を表示内容に応じたパターンに形成すれば、この
パターンに応じた表示を行うことができる。 In the display device 28 thus obtained, the liquid 26 allows the spheres 11 to rotate smoothly, and the spheres 11 are selectively vaporized with copper and phthalocyanine, for example, as described above. By forming the color display sections 12a and 12b by having different surface materials for the hemispherical sections 12a and 12b, the interface with the liquid 26 has a mutually different polarity for both sections 12a and 12b. A charged state is formed. Therefore, if a voltage is applied between the electrodes 30a and 30b with the polarity selected, and a DC electric field of, for example, 10 4 V/cm is applied to the sheet 25, the sphere 11 will change depending on the charged polarity formed on its surface. One of the sections 12a or 12b is rotated so as to face the electrode 30a or 30b, and can be observed from the electrode plate 27a or 27b side. In other words, display can be performed. And in this structure,
For example, at least one of the electrodes 30a, 30b
By forming a pattern according to the display content, it is possible to perform a display according to this pattern.
上述したように本発明製法及び本発明装置によ
れば、支持シート２５に連続多孔２３を形成する
ようにしたので、これを通じて空洞２４に液体２
６の注入を行うことができ、これがため、液体２
６の種類としては、例えばシート２５に空洞２４
を形成するための膨潤効果をも有する液体より選
定する必要がなく、最終的に要求される特性、す
なわち、球体１１を円滑に回避させることがで
き、且つ例えば電界型球体回転表示装置を構成す
る場合には、球体１１との界面に所要の帯電状態
を形成し得る特性の液体より選定すればよいの
で、液体２６の種類の選定の自由度は高い。 As described above, according to the manufacturing method and apparatus of the present invention, the continuous pores 23 are formed in the support sheet 25, so that the liquid 2 is allowed to flow into the cavity 24 through the continuous pores 23.
6 injections can be made, which results in liquid 2
As for the type 6, for example, there is a cavity 24 in the sheet 25.
There is no need to select a liquid that also has a swelling effect to form a liquid, and the final required property, that is, the sphere 11 can be smoothly avoided, and for example, an electric field type sphere rotation display device can be constructed. In this case, the type of liquid 26 can be selected with a high degree of freedom since it is sufficient to select a liquid having characteristics that can form the required charged state at the interface with the sphere 11.
また本発明製法においては、シート２５中の充
填物と、球体１１のコート２２との溶去によつて
連続多孔２３と、空洞２４の形成を行うので、温
度の依存性が殆んどなく、各製品に関し、また各
製品の各部に関して均質な特性を有する表示装置
を再現性良く製造することができる。 Furthermore, in the manufacturing method of the present invention, the continuous pores 23 and cavities 24 are formed by dissolving the filler in the sheet 25 and the coating 22 of the spheres 11, so there is almost no temperature dependence. Display devices having uniform characteristics for each product and for each part of each product can be manufactured with good reproducibility.
また、空洞２４の形成は球体１１自体に被着し
たコート２２の除去によつて生じさせるようにし
たので、コート２２の厚さに応じた均一な大きさ
形状の空洞を形成することができる。 Further, since the cavity 24 is formed by removing the coat 22 attached to the sphere 11 itself, it is possible to form a cavity having a uniform size and shape according to the thickness of the coat 22.
そして、このコート２２の溶去は、シート２５
の連続多孔２３を通じて行うので、確実且つ容易
な除去が可能となる。 The coating 22 is dissolved away from the sheet 25.
Since the removal is carried out through the continuous pores 23, reliable and easy removal is possible.
尚、上述した例では、シート２５として親水
性、すなわち油系液体に対して非親和性のPVA
を用いた場合であるがこの場合、液体２６として
油系液体を用いる場合において、これの封じ込め
を長期に亘つて確実に行うことができ、球体１１
による回転表示の信頼性を高めることができる。 In the above example, the sheet 25 is made of PVA which is hydrophilic, that is, has no affinity for oil-based liquids.
In this case, when an oil-based liquid is used as the liquid 26, it can be reliably contained for a long time, and the sphere 11
The reliability of rotational display can be improved.
しかしながらシート２５の構成材料は、種々の
ものが選定でき、他の各種有機ポリマー、或い
は、無機材料の例えば低融点ガラス材を用いるこ
とができる。 However, various materials can be selected for forming the sheet 25, and various other organic polymers or inorganic materials such as low-melting glass materials can be used.
また、球体１１のコート２２も、ワツクスに限
らず、例えば無電解メツキによる金（Au）膜に
よつて構成し得る。そして、この金コートが施さ
れたガラス球体を、例えば水を加えてペースト状
にした低融点ガラス粉末と混合した後、軽い焼成
処理を施す。このようにすると、わずかに焼結さ
れて連続多孔体となり、球体が分散支持されたガ
ラスシートが得られる。このシートに対し、ガラ
スは侵かすことがない金のエツチヤント、例えば
トランセン社のゴールドエツチヤントタイプ
TFA′（商品名）によつて連続多孔を通じて金コ
ートを溶去する。このようにすれば、前述した例
と同様に金コートの厚さに応じた空洞２４を形成
することができる。そして、その後は前述したと
同様にこの連続多孔のシートに、すなわち空洞２
４に液体２６の注入を行い、表示装置２８を構成
する。 Further, the coat 22 of the sphere 11 is not limited to wax, but may be made of, for example, a gold (Au) film formed by electroless plating. The gold-coated glass sphere is then mixed with, for example, a low-melting glass powder made into a paste by adding water, and then subjected to a light firing process. In this way, a glass sheet is obtained which is slightly sintered to become a continuous porous body and in which spheres are dispersed and supported. In contrast to this sheet, the glass is coated with a non-corrosive gold etchant, such as Transsen's gold etchant type.
The gold coating is dissolved away through continuous pores using TFA' (trade name). In this way, the cavity 24 can be formed in accordance with the thickness of the gold coating, similar to the example described above. After that, in the same way as described above, this continuous porous sheet, that is, the cavities 2
4, a liquid 26 is injected to form a display device 28.
尚、球体１１へのコート２２の形成は、例えば
銅の無電解メツキを下地層として形成することも
できる。 The coat 22 can also be formed on the sphere 11 by using, for example, electroless plating of copper as a base layer.
また上述した例は、主として電界型の表示装置
に本発明を適用した場合であるが、球体１１に着
磁をなし、外部磁界によつてこれを回転させる磁
界型のものに適用することもできる。 Furthermore, although the above-mentioned example is mainly a case where the present invention is applied to an electric field type display device, it can also be applied to a magnetic field type display device in which the sphere 11 is magnetized and rotated by an external magnetic field. .
第１図は従来の球体回転表示装置の略線的拡大
断面図、第２図は本発明による表示装置の表示用
球体の一例を示す拡大側面図、第３図は本発明製
法の一例の説明に供する表示区分作成の蒸着装置
の一例の構成図、第４図は同様の本発明製法の一
例の説明に供するコーテイング装置の構成図、第
５図は表面コートが施された球体の一部を断面と
する側面図、第６図は球体の支持シートの一例の
拡大断面図、第７図は本発明による表示装置の一
例の略線的断面図、第８図は本発明製法の一例の
説明に供する液体注入作業を示す配置図である。
２８は本発明による表示装置、１２ａ及び１２
ｂはその表示区分、２５は表示球体１１の支持シ
ート、２３はその連続多孔、２４は球体１１が収
容される空洞、２６は液体、２７ａ，２７ｂは電
極板である。
FIG. 1 is a schematic enlarged cross-sectional view of a conventional rotating spherical display device, FIG. 2 is an enlarged side view showing an example of a display sphere of a display device according to the present invention, and FIG. 3 is an explanation of an example of the manufacturing method of the present invention. Fig. 4 is a block diagram of a coating apparatus used to explain an example of the manufacturing method of the present invention, and Fig. 5 shows a part of a sphere whose surface has been coated. 6 is an enlarged sectional view of an example of a spherical support sheet, FIG. 7 is a schematic sectional view of an example of a display device according to the present invention, and FIG. 8 is an explanation of an example of the manufacturing method of the present invention. FIG. 3 is a layout diagram showing a liquid injection operation used for 28 is a display device according to the present invention, 12a and 12
25 is a support sheet for the display sphere 11, 23 is a continuous pore thereof, 24 is a cavity in which the sphere 11 is accommodated, 26 is a liquid, and 27a and 27b are electrode plates.
Claims (1)
有する支持体が、上記空洞間を連通し、上記空洞
より小さい多孔体より成る連続多孔体を含むこと
を特徴とする表示装置。 ２ 表示球体の表面に所要の厚さのコートを被覆
し、該表示球体と前記表示球体より小さいサイズ
の充填物をこれの支持体の構成材料中に分散させ
て球体支持体を作成し、上記球体のコート及び前
記充填物を溶去させて、該コート及び前記充填物
の溶去によつて夫々上記表示球体が収容された空
洞及び上記空洞間を連通する連続多孔を形成し、
その後、該空洞内に上記連続多孔を通じて液体の
注入を行うことを特徴とする表示装置の製法。[Scope of Claims] 1. A support having a cavity in which a display sphere is housed surrounded by a liquid is characterized in that the support body has a continuous porous body that communicates between the cavities and is made of a porous body that is smaller than the cavity. Display device. 2. A spherical support is created by coating the surface of a display sphere with a coating of a required thickness, and dispersing the display sphere and a filler smaller in size than the display sphere in the constituent material of the support. The coating of the sphere and the filling are dissolved away, and the coating and the filling are dissolved to form a cavity in which the display sphere is housed, respectively, and a continuous pore communicating between the cavities,
A method for manufacturing a display device, characterized in that a liquid is then injected into the cavity through the continuous pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14477379A JPS5667886A (en) | 1979-11-08 | 1979-11-08 | Display device and producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14477379A JPS5667886A (en) | 1979-11-08 | 1979-11-08 | Display device and producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5667886A JPS5667886A (en) | 1981-06-08 |
| JPS6318754B2 true JPS6318754B2 (en) | 1988-04-20 |
Family
ID=15370084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14477379A Granted JPS5667886A (en) | 1979-11-08 | 1979-11-08 | Display device and producing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5667886A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6396205B1 (en) * | 1998-12-18 | 2002-05-28 | Xerox Corporation | Nonspecular visual display and method |
| US6985132B2 (en) | 2000-11-29 | 2006-01-10 | Matsushita Electric Industrial Co., Ltd. | Display device and method for manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144774A (en) * | 1978-04-30 | 1979-11-12 | Toshiba Electric Equip | Illuminator |
-
1979
- 1979-11-08 JP JP14477379A patent/JPS5667886A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144774A (en) * | 1978-04-30 | 1979-11-12 | Toshiba Electric Equip | Illuminator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5667886A (en) | 1981-06-08 |
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