JP2001235771A - Electrophoretic display device and its manufacturing method - Google Patents
Electrophoretic display device and its manufacturing methodInfo
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- JP2001235771A JP2001235771A JP2000043313A JP2000043313A JP2001235771A JP 2001235771 A JP2001235771 A JP 2001235771A JP 2000043313 A JP2000043313 A JP 2000043313A JP 2000043313 A JP2000043313 A JP 2000043313A JP 2001235771 A JP2001235771 A JP 2001235771A
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- electrophoretic
- liquid
- display device
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気泳動表示装置
及びその製造方法に関する。The present invention relates to an electrophoretic display device and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】近年携帯型の情報機器が急激に発展して
いる。そこで低消費電力、薄型の表示装置の要望が増し
ている。これらの要望に答えるため、いろいろな表示装
置の開発が試みられてきたが、現状では液晶表示体がそ
の要望を満たしていた。2. Description of the Related Art In recent years, portable information devices have been rapidly developed. Therefore, demands for low power consumption and thin display devices are increasing. To respond to these demands, various display devices have been developed, but at present, liquid crystal displays have satisfied the demands.
【０００３】しかしながら、この液晶表示体には、画面
を見る角度や、反射光による文字の見づらさや、光源の
ちらつき等による視覚への負担が未だ十分に解決されて
いない。このため視覚への負担の少ない表示装置の研究
が盛んに行われている。[0003] However, this liquid crystal display has not yet sufficiently solved the angle of viewing the screen, the difficulty in viewing characters due to reflected light, and the burden on vision due to flickering of the light source. For this reason, a display device with a small burden on vision has been actively researched.
【０００４】低消費電力、眼への負担軽減等の観点から
反射表示装置が期待されている。その一つとして電気泳
動表示体（米国特許３６１２７５８号）が知られてい
る。[0004] Reflective display devices are expected from the viewpoints of low power consumption and reduced burden on the eyes. As one of them, an electrophoretic display (US Pat. No. 3,612,758) is known.
【０００５】この電気泳動表示体の動作原理を図２に示
す。この表示体は帯電した粒子（帯電粒子１１）と、着
色した色素が溶解された着色絶縁性液体１２からなる分
散液と、分散液を挟んで対向一対の透明電極１４、基板
１５ からなっている。FIG. 2 shows the principle of operation of the electrophoretic display. This display body is composed of a dispersion liquid composed of charged particles (charged particles 11), a colored insulating liquid 12 in which a colored dye is dissolved, a pair of transparent electrodes 14 and a substrate 15 opposed to each other across the dispersion liquid. .
【０００６】電極を介して分散液に電圧を印加すること
により、電荷を有する電気泳動粒子を反対極性の電極へ
引き寄せるものである。表示はこの電気泳動粒子の色
と、着色絶縁性液体の色との対比により行われる。片側
の電極を所望の形状にし画素形状を定めることにより、
所望の表示を行うことが出来る。[0006] By applying a voltage to the dispersion through the electrodes, charged electrophoretic particles are attracted to electrodes of opposite polarity. The display is performed by comparing the color of the electrophoretic particles with the color of the colored insulating liquid. By setting one side electrode to the desired shape and defining the pixel shape,
Desired display can be performed.
【０００７】即ち、電圧をある極性でかけた場合、目視
者に近い方の電極に白色の電気泳動粒子が引き寄せら
れ、着色絶縁性液体の色をバックとし、所望の形状に白
色の表示が観測される。逆に反対の電圧を印加した場合
反対側の電極に電気泳動粒子は引き寄せられ、目視者に
は着色絶縁性液体の色が認識されることになる。That is, when a voltage is applied with a certain polarity, white electrophoretic particles are attracted to the electrode closer to the viewer, and a white display is observed in a desired shape with the color of the colored insulating liquid as a background. You. Conversely, when an opposite voltage is applied, the electrophoretic particles are attracted to the electrode on the opposite side, and a viewer can recognize the color of the colored insulating liquid.
【０００８】この電気泳動表示体の作成方法は、２枚の
電極付き基板をスペーサを介して張り合わせセルを作
り、セル中に毛細管現象を利用し、分散液を充填する方
法であった。In this method of producing an electrophoretic display, two substrates with electrodes are attached to each other via a spacer to form a cell, and the cell is filled with a dispersion liquid by utilizing the capillary phenomenon.
【０００９】または、分散液を含むマイクロカプセルを
バインダとともにロールコータ等を利用し基板に塗布す
る方法であった。[0009] Alternatively, a method of applying microcapsules containing a dispersion together with a binder to a substrate using a roll coater or the like has been used.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、従来の
電気泳動表示装置は多色、多数の分散液体を隣合わせに
配置する事が出来ないため二値表示、即ち、一組の着色
液体と帯電粒子の色のコントラストによる表示しか出せ
ないという欠点があった。本発明は、上記問題点に鑑み
てなされたもので、その課題とするところは、多色表示
の可能な電気泳動表示装置を提供することにある。However, the conventional electrophoretic display device cannot display a multi-color and a large number of dispersed liquids next to each other, so that a binary display, that is, a set of a colored liquid and a charged particle is used. There is a drawback that only display based on color contrast can be obtained. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an electrophoretic display device capable of multicolor display.
【００１１】[0011]
【課題を解決するための手段】本発明によれば、対向す
る一対の基板間に隔壁部材を有し、該一対の基板と該隔
壁部材で囲まれた領域内に電気泳動粒子と絶縁性液体よ
りなる電気泳動液体を有する電気泳動表示装置の製造方
法であって、前記一対の基板の少なくとも一方と前記隔
壁部材で囲まれた領域内に前記電気泳動液体を吐出装置
を用いて供給することを特徴とする電気泳動表示装置の
製造方法が提供される。According to the present invention, a partition member is provided between a pair of opposing substrates, and electrophoretic particles and an insulating liquid are provided in a region surrounded by the pair of substrates and the partition member. A method for manufacturing an electrophoretic display device having an electrophoretic liquid, comprising: supplying the electrophoretic liquid to a region surrounded by at least one of the pair of substrates and the partition member by using a discharge device. A method for manufacturing an electrophoretic display device is provided.
【００１２】また、本発明によれば、個々が独立して駆
動できるように薄膜トランジスタ素子に結線された複数
の電極を有する第一の基板、該基板と対向して設置した
第二の基板、及び該第一及び第二の基板間に設けられた
土手部により形成された複数の領域に、電気泳動粒子と
絶縁性液体よりなる電気泳動液体を有する電気泳動表示
装置であって、前記第一の基板及び前記第二の基板の少
なくとも一方と、前記土手部により囲まれた領域に前記
電気泳動液体を吐出装置を用いて供給することを特徴と
する電気泳動表示装置の製造方法が提供される。Further, according to the present invention, a first substrate having a plurality of electrodes connected to a thin film transistor element so that they can be driven independently of each other, a second substrate provided to face the substrate, and An electrophoretic display device having an electrophoretic liquid composed of electrophoretic particles and an insulating liquid in a plurality of regions formed by a bank provided between the first and second substrates, A method for manufacturing an electrophoretic display device is provided, wherein the electrophoretic liquid is supplied to a region surrounded by at least one of a substrate and the second substrate and the bank using an ejection device.
【００１３】更に、本発明によれば、対向する一対の基板
間に隔壁部材を有し、該一対の基板と該隔壁部材で囲ま
れた領域内に電気泳動粒子と絶縁性液体よりなる電気泳
動液体が充填されたことを特徴とする電気泳動表示装置
が提供される。Further, according to the present invention, a partition member is provided between a pair of opposing substrates, and electrophoresis comprising electrophoretic particles and an insulating liquid is provided in a region surrounded by the pair of substrates and the partition member. An electrophoretic display device characterized by being filled with a liquid is provided.
【００１４】加えて、本発明によれば、個々が独立して
駆動できるように薄膜トランジスタ素子に結線された複
数の電極を有する第一の基板、該基板と対向して設置し
た第二の基板、及び該第一及び第二の基板間に設けられ
た土手部により形成された複数の領域に、電気泳動粒子
と絶縁性液体よりなる電気泳動液体が充填されたことを
特徴とする電気泳動表示装置が提供される。[0014] In addition, according to the present invention, a first substrate having a plurality of electrodes connected to a thin film transistor element so that each can be driven independently, a second substrate placed opposite to the substrate, An electrophoretic display device, wherein a plurality of regions formed by a bank provided between the first and second substrates are filled with an electrophoretic liquid composed of electrophoretic particles and an insulating liquid. Is provided.
【００１５】上記表示装置においては、電気泳動液体は
好ましくは吐出法、より好ましくはインクジェット法に
より所定領域に充填される。In the above display device, the electrophoretic liquid is preferably filled in a predetermined area by a discharge method, more preferably an ink jet method.
【００１６】[0016]
【発明の実施の形態】本発明の電気泳動表示装置は、よ
り好ましくは、個々の電極が独立して駆動できるように
それぞれ薄膜トランジスタ素子（ＴＦＴ素子）を備えた
複数の電極と各電極に対応して好ましくは空間を区画す
る隔壁として機能する例えば格子状の土手部（凸部）を
有する基板（第一の基板）上において、該土手部で囲ま
れた領域に内に、電気泳動粒子と絶縁性液体よりなる電
気泳動液体（インク）を吐出装置を用い吐出、充填し、
しかる後、対向電極を有する基板（第二の基板）を、前
記基板（第一の基板）と張り合わせることにより、得る
ことができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The electrophoretic display device of the present invention more preferably corresponds to a plurality of electrodes each having a thin film transistor element (TFT element) and each electrode so that each electrode can be driven independently. For example, on a substrate (first substrate) having, for example, a lattice-shaped bank portion (convex portion) functioning as a partition for partitioning a space, the electrophoretic particles are insulated in a region surrounded by the bank portion. Discharging and filling an electrophoretic liquid (ink) composed of a conductive liquid using a discharging device,
Thereafter, a substrate having a counter electrode (second substrate) can be obtained by laminating the substrate (first substrate).
【００１７】本発明の上記方法は、電気泳動粒子が着色
されかつ絶縁性液体が無色不透明である電気泳動液体を
用いる場合でも、電気泳動粒子が白色でかつ絶縁性液体
が着色液体である電気泳動液体を用いる場合にも適用す
ることができる。In the above method of the present invention, even when an electrophoretic liquid in which the electrophoretic particles are colored and the insulating liquid is colorless and opaque is used, the electrophoretic particles in which the electrophoretic particles are white and the insulating liquid is a colored liquid are used. The present invention can be applied to a case where a liquid is used.
【００１８】また、本発明の上記方法は、電気泳動粒子
として複数の着色された粒子を用いかつ絶縁性液体とし
て無色不透明を用いる場合、電気泳動粒子として青、
緑、赤に着色されたものを用いかつ絶縁性液体として無
色不透明、黒のものを用いる場合に適用することができ
る。In the above method of the present invention, when a plurality of colored particles are used as the electrophoretic particles and the colorless and opaque is used as the insulating liquid, the electrophoretic particles are blue,
The present invention can be applied to a case where a colorant which is colored green or red is used and a colorless, opaque or black color is used as the insulating liquid.
【００１９】また、本発明の上記方法は、電気泳動粒子
として白色のものを用いかつ絶縁性液体として複数の着
色液体を用いる場合、あるいは電気泳動粒子として黒色
のものを用いかつ絶縁性液体が赤、緑、青の着色液体を
用いる場合にも適用することができる。 コントラスト
の観点から見れば、帯電粒子（電気泳動粒子）は白色
で、着色液体を用いた方が好適である。In the above method of the present invention, white electrophoretic particles and a plurality of colored liquids are used as the insulating liquid, or black electrophoretic particles are used and the insulating liquid is red. , Green and blue colored liquids. From the viewpoint of contrast, the charged particles (electrophoretic particles) are white, and it is preferable to use a colored liquid.
【００２０】前述の電気泳動粒子としては、亜鉛華、硫
酸バリウム、酸化クロム、炭酸カルシウム、石膏、鉛
白、マンガンバイオレット、カーボンブラック、鉄黒、
紺青、群青、フタロシアニンブルー、クロムイエロー、
カドミウムイエロー、リトポン、モリブデートオレン
ジ、ファーストイエロー、ベンズイミダゾリンイエロ
ー、フラバンスイエロー、ナフトールイエロー、ベンズ
イミダゾロンオレンジ、ペリノンオレンジ、ベンガラ、
カドミウムレッド、マダレーキ、ナフトールレッド、ジ
オキサジンバイオレット、フタロシアニンブルー、アル
カリブルー、セルリアンブルー、エメラルドグリーン、
フタロシアニングリーン、ピグメントグリーン、コバル
トグリーン、アニリンブラックなどを用いる事が出来
る。これらの材料を適宜、適当な材料を用いコートして
も良い。The above-mentioned electrophoretic particles include zinc white, barium sulfate, chromium oxide, calcium carbonate, gypsum, lead white, manganese violet, carbon black, iron black,
Navy blue, ultramarine, phthalocyanine blue, chrome yellow,
Cadmium yellow, lithopone, molybdate orange, fast yellow, benzimidazoline yellow, flavance yellow, naphthol yellow, benzimidazolone orange, perinone orange, bengala,
Cadmium red, Madalake, naphthol red, dioxazine violet, phthalocyanine blue, alkali blue, cerulean blue, emerald green,
Phthalocyanine green, pigment green, cobalt green, aniline black and the like can be used. These materials may be coated using an appropriate material as appropriate.
【００２１】更に、基板間の隔壁部材又は土手部（凸
部）を形成する材料としては、空間を区画する隔壁とし
て機能し、基板に対して土手（凸構造）を形成できるも
のであればいずれも使用可能である。土手間の液体の移
動を考慮して、対向する２枚の基板に圧力を加えること
により弾性的に変形させるため、ゴム状弾性を有する材
料を用いることが好ましい。具体的にはシリコン樹脂等
は特に好適である。土手のパターンとしては、格子状の
パターン以外に、蜂の巣状、円形の細密充填、三角形の
細密充填等の形状も適用することもできる。Further, as a material for forming the partition member or the bank (convex portion) between the substrates, any material can be used as long as it functions as a partition for partitioning a space and can form a bank (convex structure) on the substrate. Can also be used. In consideration of the movement of the liquid between the banks, a material having rubber-like elasticity is preferably used in order to elastically deform the two opposing substrates by applying pressure. Specifically, silicone resin and the like are particularly suitable. As the bank pattern, in addition to the lattice pattern, shapes such as a honeycomb shape, a circular fine packing, and a triangular fine packing can also be applied.
【００２２】電気泳動液体を供給する吐出手段としては
ディスペンサー、インクジェットが適用可能であるが、
液体の吐出供給について精密制御が可能なインクジェッ
トがより好適である。As a discharging means for supplying the electrophoretic liquid, a dispenser or an ink jet can be applied.
An ink jet that can precisely control the liquid supply and ejection is more preferable.
【００２３】[0023]
【実施例】以下、本発明を実施例に沿って更に詳細に説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments.
【００２４】（実施例１）図１は本発明の電気泳動表示
装置の製造方法の工程の一部を示す図である。詳しく
は、同図は、電気泳動表示装置を構成する一方の基板上
の土手部により囲まれた領域内に、インクジェットによ
り、赤、緑、青色の電気泳動液体を吐出により供給しわ
けている状態を示す。Embodiment 1 FIG. 1 is a view showing a part of the steps of a method for manufacturing an electrophoretic display device according to the present invention. In detail, the figure shows a state in which red, green, and blue electrophoretic liquids are separately supplied by ink-jet into an area surrounded by a bank on one substrate constituting the electrophoretic display device. Is shown.
【００２５】同図において、１は電気泳動液体を吐出す
るノズルを、２はＴＦＴガラス基板後述の薄膜トランジ
スタ素子を備えた電極を有する基板、３はＩＴＯ透明電
極を、４は土手部を、５は電気泳動液体をそれぞれ示
す。ＩＴＯ透明電極３はそれぞれ独立しており、個々の
電極がそれぞれＴＦＴ素子（不図示）に結線され、別々
に通電できる。In FIG. 1, reference numeral 1 denotes a nozzle for discharging an electrophoretic liquid, 2 denotes a TFT glass substrate, a substrate having an electrode provided with a thin film transistor described later, 3 denotes an ITO transparent electrode, 4 denotes a bank, and 5 denotes a bank. The electrophoretic liquids are shown respectively. The ITO transparent electrodes 3 are independent of each other, and each of the electrodes is connected to a TFT element (not shown), and can be separately energized.
【００２６】以下、工程を具体的に説明する。Hereinafter, the steps will be specifically described.
【００２７】まず液晶ディスプレイに使用されるＴＦＴ
基板の場合と同じ方法により得た、第一の基板としての
ＴＦＴガラス基板(薄膜トランジスタ素子基板)２にレジ
ストを塗布し露光、現像の工程を経て、目的とする土手
部の格子状パターン（４）に対応する凹部パターンを得
た。First, a TFT used in a liquid crystal display
A resist is applied to a TFT glass substrate (thin film transistor element substrate) 2 as a first substrate obtained by the same method as in the case of the substrate, exposed and developed, and then a grid pattern (4) of a target bank portion is obtained. Was obtained.
【００２８】次に、基板２と凹状領域内に２液硬化型の
シリコン樹脂（ＴＳＥ３４５０（Ａ），ＴＳＥ３４５０
（Ｂ），東芝シリコーン社製）を充填し硬化させた。し
かる後レジスト部を剥離、除去し凸状の土手部（パター
ン）４を得た。土手部の高さは５０μｍ、幅を１０μ
ｍ、土手のピッチを６０μｍとして２次元に広がったパ
ターンとした。Next, a two-liquid curing type silicone resin (TSE3450 (A), TSE3450
(B), manufactured by Toshiba Silicone Co., Ltd.) and cured. Thereafter, the resist portion was peeled off and removed to obtain a convex bank portion (pattern) 4. The height of the bank is 50μm and the width is 10μ
m, the pitch of the bank was 60 μm, and the pattern was two-dimensionally spread.
【００２９】この土手部（及びＴＦＴガラス基板）によ
り囲まれた領域内にインクジェット装置を用い、白色の
帯電粒子を含有する赤、緑、青に着色された電気泳動液
体を撃ちわけた(各色の液体をそれぞれ別の領域に供給
した)。電気泳動液体としては、三井東圧性染料社製、
ＣＦ Ｒｅｄ ２２６、ＣＦ Ｇｒｅｅｎ ３０３、Ｃ
Ｆ Ｂｌｕｅ １２０のそれぞれを溶かした水溶性液体
に白色顔料（二酸化チタン粉末）を分散させ調製した。An electrophoretic liquid containing red, green and blue colored particles containing white charged particles was shot by using an ink jet device in a region surrounded by the bank (and the TFT glass substrate) (each color was colored). Liquids were supplied to separate areas). As the electrophoretic liquid, Mitsui Toatsu Dye Co., Ltd.,
CF Red 226, CF Green 303, C
A white pigment (titanium dioxide powder) was dispersed in a water-soluble liquid in which each of F Blue 120 was dissolved.
【００３０】電気泳動液体を撃ち分けた後、全面にＩＴ
Ｏの付いた第二の基板としてのガラス基板を張り合わ
せ、荷重を加えつつ、基板の周縁部をエポキシ樹脂で封
じ、第一及び第二の一対の基板間に所定パターン（格子
状）で土手部が設けられ、一つの基板と土手により囲ま
れた複数の領域内に電気泳動液体を有する電気泳動表示
装置を得た。After the electrophoresis liquid is shot off, the entire surface of the
A glass substrate as a second substrate with O is attached thereto, and a peripheral portion of the substrate is sealed with epoxy resin while applying a load, and a bank portion is formed between the first and second pair of substrates in a predetermined pattern (lattice shape). Was provided, and an electrophoretic display device having an electrophoretic liquid in a plurality of regions surrounded by one substrate and a bank was obtained.
【００３１】ＴＴＦガラス基板上の端子部を電源と結線
し駆動したところ、赤、緑、青、白等のマルチカラー駆
動できた。これら色の混合色も良好に表示可能であっ
た。When the terminals on the TTF glass substrate were connected to a power supply and driven, multi-color driving such as red, green, blue, and white could be performed. A mixture of these colors could be displayed well.
【００３２】（実施例２）帯電粒子として、実施例１で
用いた二酸化チタンに代わりアニリンブラック微粉末に
代えた以外は実施例１と同一にして、電気泳動表示装置
を作成した。(Example 2) An electrophoretic display device was prepared in the same manner as in Example 1 except that aniline black fine powder was used instead of the titanium dioxide used in Example 1 as charged particles.
【００３３】（実施例３）実施例１と同様にして、まず
液晶ディスプレイに使用されるＴＦＴ基板と同じ方法に
より得られたＴＦＴガラス基板にレジストを塗布し露
光、現像、の工程を経て、後述の土手の格子状パターン
部に対応する凹部パターンを得た。(Example 3) In the same manner as in Example 1, first, a resist is applied to a TFT glass substrate obtained by the same method as a TFT substrate used for a liquid crystal display, and exposure and development are performed. A concave portion pattern corresponding to the lattice pattern portion of the bank was obtained.
【００３４】次にこの凹部（凹状領域）に２液硬化型の
シリコン樹脂を充填し硬化させ土手部を形成した。しか
る後レジスト部を剥離、除去し、凸状の土手部（パター
ン）を形成した。土手の高さは５０μｍ、幅は１０μ、
土手のピッチは６０μｍで２次元に広がっている格子状
パターンとした。Next, a two-liquid curing type silicone resin was filled in the concave portion (concave region) and cured to form a bank portion. Thereafter, the resist portion was peeled off and removed to form a convex bank portion (pattern). The height of the bank is 50μm, the width is 10μ,
The pitch of the banks was 60 μm, and a two-dimensionally spread lattice-like pattern was used.
【００３５】この土手部（及びＴＦＴガラス基板）に囲
まれた領域内にインクジェット装置を用い、赤、緑、青
に着色された白色の帯電粒子を含有する電気泳動液体を
撃ちわけた(各色の液体をそれぞれ別の領域に供給し
た)。電気泳動液体はベンガラ、エメラルドグリーン、
フタロシアニンブルーの顔料粒子を分散させたドデシル
ベンゼンよりなる。尚、ドデシルベンゼンは染料Ｓ−４
０９（三井東圧）により黒く着色されている。An electrophoretic liquid containing white charged particles colored red, green, and blue was shot using an ink jet device in a region surrounded by the bank (and the TFT glass substrate) (each color was used). Liquids were supplied to separate areas). Electrophoresis liquid is Bengala, emerald green,
It consists of dodecylbenzene in which phthalocyanine blue pigment particles are dispersed. In addition, dodecylbenzene is dye S-4.
09 (Mitsui Toatsu).
【００３６】電気泳動液体を撃ち分けた後、全面にＩＴ
Ｏの付いた第二の基板としてのガラス基板を張り合わ
せ、荷重を加えつつ、基板の周縁部をエポキシ樹脂で封
じ、第一及び第二の一対の基板間に所定パターン（格子
状）で土手部が設けられ、一つの基板と土手により囲ま
れた複数の領域内に電気泳動液体を有する電気泳動表示
装置を得た。After the electrophoresis liquid is shot off, the entire surface of the
A glass substrate as a second substrate with O is attached thereto, and a peripheral portion of the substrate is sealed with epoxy resin while applying a load, and a bank portion is formed between the first and second pair of substrates in a predetermined pattern (lattice shape). Was provided, and an electrophoretic display device having an electrophoretic liquid in a plurality of regions surrounded by one substrate and a bank was obtained.
【００３７】ＴＴＦガラス基板上の端子部を電源と結線
し駆動したところ、赤、緑、青、黒等のマルチカラー駆
動できた。これら色の混合色も良好に表示可能であっ
た。When the terminals on the TTF glass substrate were connected to a power supply and driven, multi-color driving of red, green, blue, black and the like was performed. A mixture of these colors could be displayed well.
【００３８】[0038]
【発明の効果】以上述べたように、インクジェット法の
吐出手段により、電気泳動液体を撃ち分けることによ
り、多色表示の電気泳動表示装置の容易な作成が可能と
なった。多色表示から更に進んでフルカラー表示も可能
である。As described above, the electrophoretic liquid can be easily formed by discharging the electrophoretic liquids by the ejection means of the ink jet method. Further advanced from multi-color display, full-color display is also possible.
【図１】本発明の電気泳動表示体の製造法の一工程を示
す斜視図である。FIG. 1 is a perspective view showing one step of a method for producing an electrophoretic display according to the present invention.
【図２】一般的な電気泳動表示装置の構造を示す断面図
である。FIG. 2 is a cross-sectional view illustrating a structure of a general electrophoretic display device.
１．．．ノズル ２．．．ＴＦＴガラス基板 ３．．．ＩＴＯ透明電極 ４．．．土手部 ５．．．電気泳動流体 １１．．．帯電粒子 １２．．．着色絶縁性液体 １３．．．スペーサ １４．．．透明電極 １５．．．基板 1. . . Nozzle 2. . . 2. TFT glass substrate . . 3. ITO transparent electrode . . Bank part 5. . . Electrophoretic fluid 11. . . Charged particles 12. . . Colored insulating liquid 13. . . Spacer 14. . . Transparent electrode 15. . . substrate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 下田 達也 長野県諏訪市大和３丁目３番５号 セイコ ーエプソン株式会社内 (72)発明者 関 俊一 長野県諏訪市大和３丁目３番５号 セイコ ーエプソン株式会社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tatsuya Shimoda 3-5-5 Yamato, Suwa-shi, Nagano Inside Seiko Epson Corporation (72) Inventor Shunichi Seki 3-5-2-5, Yamato, Suwa-shi, Nagano Seiko-Epson Inside the corporation
Claims (12)
し、該一対の基板と該隔壁部材で囲まれた領域内に電気
泳動粒子と絶縁性液体よりなる電気泳動液体を有する電
気泳動表示装置の製造方法であって、前記一対の基板の
少なくとも一方と前記隔壁部材で囲まれた領域内に前記
電気泳動液体を吐出装置を用いて供給することを特徴と
する電気泳動表示装置の製造方法。1. An electrophoretic display having a partition member between a pair of opposed substrates, and having an electrophoretic liquid composed of electrophoretic particles and an insulating liquid in a region surrounded by the pair of substrates and the partition member. A method for manufacturing an electrophoretic display device, comprising: supplying the electrophoretic liquid to a region surrounded by at least one of the pair of substrates and the partition member by using a discharge device. .
ランジスタ素子に結線された複数の電極を有する第一の
基板、該基板と対向して設置した第二の基板、及び該第
一及び第二の基板間に設けられた土手部により形成され
た複数の領域に、電気泳動粒子と絶縁性液体よりなる電
気泳動液体を有する電気泳動表示装置であって、前記第
一の基板及び前記第二の基板の少なくとも一方と、前記
土手部により囲まれた領域に前記電気泳動液体を吐出装
置を用いて供給することを特徴とする電気泳動表示装置
の製造方法。2. A first substrate having a plurality of electrodes connected to a thin film transistor element so that they can be driven independently of each other, a second substrate disposed opposite to the substrate, and the first and second substrates. An electrophoretic display device having an electrophoretic liquid composed of electrophoretic particles and an insulating liquid in a plurality of regions formed by banks provided between the substrates, the first substrate and the second substrate. A method for manufacturing an electrophoretic display device, wherein the electrophoretic liquid is supplied to at least one of the substrates and a region surrounded by the bank using an ejection device.
液体が着色液体であることを特徴とする請求項１又は２
記載の電気泳動表示装置の製造方法。3. The electrophoretic particle according to claim 1, wherein the electrophoretic particles are white and the insulating liquid is a colored liquid.
A manufacturing method of the electrophoretic display device according to the above.
着色液体を用い、電気泳動液体が、個々の着色液体と白
色粒子よりなる２種以上の電気泳動液体であることを特
徴とする請求項３記載の電気泳動表示装置の製造方法。4. The method according to claim 1, wherein a plurality of colored liquids of two or more colors are used as the insulating liquid, and the electrophoretic liquid is at least two kinds of electrophoretic liquids composed of individual colored liquids and white particles. Item 4. A method for manufacturing an electrophoretic display device according to item 3.
液体を用いることを特徴とする請求項４記載の電気泳動
表示装置の製造方法。5. The method according to claim 4, wherein red, green, and blue colored liquids are used as the insulating liquid.
を特徴とする請求項１又は２記載の電気泳動表示装置の
製造方法。6. The method according to claim 1, wherein the color of the electrophoretic particles is black.
液体が着色液体である事をことを特徴とする請求項１又
は２記載の電気泳動表示装置の製造方法。7. The method according to claim 1, wherein the electrophoretic particles are black, and the insulating liquid is a colored liquid.
性を有することを特徴とする請求項１記載の電気泳動表
示装置の製造方法。8. The method for manufacturing an electrophoretic display device according to claim 1, wherein the material forming said partition member has rubber-like elasticity.
を有することを特徴とする請求項２記載の電気泳動表示
装置の製造方法。9. The method for manufacturing an electrophoretic display device according to claim 2, wherein the material forming the bank portion has rubber-like elasticity.
あることを特徴とする請求項１又は２記載の電気泳動表
示装置の製造方法。10. The method of manufacturing an electrophoretic display device according to claim 1, wherein the discharge device is an ink jet device.
し、該一対の基板と該隔壁部材で囲まれた領域内に電気
泳動粒子と絶縁性液体よりなる電気泳動液体が充填され
たことを特徴とする電気泳動表示装置。11. A partition member is provided between a pair of opposing substrates, and a region surrounded by the pair of substrates and the partition member is filled with an electrophoretic liquid including electrophoretic particles and an insulating liquid. An electrophoretic display device characterized by the above-mentioned.
トランジスタ素子に結線された複数の電極を有する第一
の基板、該基板と対向して設置した第二の基板、及び該
第一及び第二の基板間に設けられた土手部により形成さ
れた複数の領域に、電気泳動粒子と絶縁性液体よりなる
電気泳動液体が充填されたことを特徴とする電気泳動表
示装置。12. A first substrate having a plurality of electrodes connected to a thin film transistor element so that they can be driven independently of each other, a second substrate placed opposite to the substrate, and the first and second substrates. An electrophoretic display device characterized in that a plurality of regions formed by banks provided between substrates are filled with an electrophoretic liquid composed of electrophoretic particles and an insulating liquid.
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|---|---|---|---|
| JP2000043313A JP4048679B2 (en) | 2000-02-21 | 2000-02-21 | Electrophoretic display device and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000043313A JP4048679B2 (en) | 2000-02-21 | 2000-02-21 | Electrophoretic display device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001235771A true JP2001235771A (en) | 2001-08-31 |
| JP4048679B2 JP4048679B2 (en) | 2008-02-20 |
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ID=18566248
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|---|---|---|---|
| JP2000043313A Expired - Fee Related JP4048679B2 (en) | 2000-02-21 | 2000-02-21 | Electrophoretic display device and manufacturing method thereof |
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| Country | Link |
|---|---|
| JP (1) | JP4048679B2 (en) |
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