JPS5934518A - Electrophoresis panel - Google Patents

Electrophoresis panel

Info

Publication number
JPS5934518A
JPS5934518A JP57145000A JP14500082A JPS5934518A JP S5934518 A JPS5934518 A JP S5934518A JP 57145000 A JP57145000 A JP 57145000A JP 14500082 A JP14500082 A JP 14500082A JP S5934518 A JPS5934518 A JP S5934518A
Authority
JP
Japan
Prior art keywords
panel
dispersion
cells
film
dispersion system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57145000A
Other languages
Japanese (ja)
Inventor
Shoichi Matsui
祥一 松井
Masao Hasegawa
長谷川　正生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57145000A priority Critical patent/JPS5934518A/en
Publication of JPS5934518A publication Critical patent/JPS5934518A/en
Pending legal-status Critical Current

Links

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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells

Abstract

PURPOSE:To maintain a uniform gap even if an area is increased and to obviate deviation and flocculation of pigments, by forming a dispersion injecting part between two sheets of substrate films and dividing the dispersion injecting part to cells of small sections. CONSTITUTION:A dispersion injecting part 14 is formed between substrate films 11a and 11b, and segment electrodes 12a consisting of transparent electrodes are provided on the inner side of film 11a. A common electrode 12b consisting of a transparent electrode or metallic electrode is provided on the inner side of the film 11b. The part 14 is divided to cells 14a of small sections, and a dispersion system consisting of a liquid dispersion medium 15 prepd. by dissolving a blue dye in m-xylene and pigment particles 16 consisting of titanium oxide added therein is injected into the respective cells 14a. The panel which is free from the deviation and flocculation of the particles 16 even if switching is repeated 10<7> times is obtd. by the abovementioned constitution and the panel having a large area is manufactured.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、表示パネルのうちの電気泳動効果を利用した
電気泳動パネルに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrophoretic panel among display panels that utilizes the electrophoretic effect.

従来例の構成とその問題点 近年、情報化時代に対応しているいろな表示技術が開発
利用されている。それらを大別すると、発光形（能動形
）と透過又は反射形（受動形）に分類される。ＣＲＴ、
螢光表示管、プラズマディスプレイ、ＬＥＤ、ＥＬなど
は前者に属し、液晶は後者に属する。電気泳動パネルは
、電気泳動現象を利用した反射形の表示パネルで、前述
の分類では後者に属する。受動形の大きな特徴としては
消費電力が小さいことがあげられるが、電気泳動パネル
はさらにメモＩＪ−機能を持っているということがあげ
られる。Conventional configurations and their problems In recent years, various display technologies that are compatible with the information age have been developed and used. Broadly speaking, they are classified into light emitting type (active type) and transmission or reflection type (passive type). CRT,
Fluorescent display tubes, plasma displays, LEDs, EL, etc. belong to the former category, and liquid crystals belong to the latter category. An electrophoretic panel is a reflective display panel that utilizes an electrophoretic phenomenon, and belongs to the latter category in the above classification. A major feature of the passive type is low power consumption, but the electrophoretic panel also has a memo IJ function.

従来の電気泳動パネルは、第１図に示す様に、表側ガラ
ス基板（１ａ）と裏側ガラス基板（１１））を間隔をあ
けて対向配置すると共にそれぞれの内側面にセグメント
電極（２ａ）とコモン電極（２ｂ）を設け、かつ外周を
シール樹脂（３）で密封し、内部の分散系注入部（４）
に、液体分散媒（５）と顔料粒子（６）を注入してなり
、Ｉｒｆｆ記分散系注入部（４）は１つのセルに構成さ
れていた。かかる構成では、パネルが大型化するに従っ
て液晶パネルなどと同様に周囲のギャップスペーサたけ
では均一なギャップの保持が困難になってくる。液晶パ
ネルの場合には液晶中にギャップスペーサを混入するこ
とが可能であるが、電気泳動パネルは顔料の電気泳動現
象を利用しているため不可能である。又、表示面積が大
きくなるに従い、顔料の片寄り、凝集が起こり易くなる
という問題がある。As shown in Fig. 1, a conventional electrophoretic panel has a front glass substrate (1a) and a back glass substrate (11) arranged facing each other with a space between them, and segment electrodes (2a) and common electrodes on the inner surface of each panel. An electrode (2b) is provided, the outer periphery is sealed with a sealing resin (3), and an internal dispersion system injection part (4) is provided.
A liquid dispersion medium (5) and pigment particles (6) were injected into the dispersion system, and the Irff dispersion system injection part (4) was configured as one cell. In such a configuration, as the panel becomes larger, it becomes difficult to maintain a uniform gap with the surrounding gap spacers, similar to liquid crystal panels and the like. In the case of a liquid crystal panel, it is possible to mix a gap spacer into the liquid crystal, but this is not possible in an electrophoretic panel because it utilizes the electrophoretic phenomenon of pigments. Furthermore, as the display area becomes larger, there is a problem in that pigments tend to be unevenly distributed and aggregated.

発明の目的 本発明は、かかる問題点に鑑み、面積を大きくしても均
一なギャップを保持でき、かつ顔料の片寄り、凝集が起
こらない電気泳動パネルの提供を目的とする。OBJECTS OF THE INVENTION In view of these problems, an object of the present invention is to provide an electrophoretic panel that can maintain a uniform gap even when the area is increased and that does not cause unevenness or aggregation of pigments.

発明の構成 本発明はこの目的を達成するため、少くとも一方に透明
導電膜を設けた２枚の基板フィルム間に分散系注入部を
形成すると共に、この分散系注入部を小区間のセルに分
割することにより、ギャップを均一に保持しながらセル
の数を増やすことにより大面積化が可能な電気泳動パネ
ルを提供する。この様に小区間のセルに分割すると、大
規模な顔料粒子の片寄りはなくなり、又液体の攪拌が起
こり易くなるため、ａ集も起こりにくくなる。前記小区
間のセルに分割する手段としては感光性ポリイミド前駆
体により形成された区画体を用いるのが好適である。Structure of the Invention In order to achieve this object, the present invention forms a dispersion system injection part between two substrate films each having a transparent conductive film on at least one side, and also forms a dispersion system injection part in a cell of a small section. To provide an electrophoresis panel whose area can be increased by increasing the number of cells while maintaining uniform gaps by dividing the panel. Dividing into cells of small sections in this way eliminates the large-scale pigment particles being lopsided, and also makes it easier to stir the liquid, making agglomeration less likely to occur. As the means for dividing the cell into the small sections, it is preferable to use a partition formed of a photosensitive polyimide precursor.

実施例の説明 以下本発明の一実施例を第２図及び第３図により説明す
ると、（１１ａ）は表側の基板フィルムで、透光性のよ
いポリエステルフィルム等から成る。（ｌｌｂ）は裏側
の基板フィルムで、ポリエステルフィルムあるいはポリ
イミドフィルム等から成っている。これら表側および裏
側の基板フィルム（Ｉｌａ）（Ｉｌｂ）は、四周を除い
て互いに間隙をあけて対向し、四周は互いに接着される
と共に分散系の注入口が封口樹脂（１，１にて密封され
、これら基板フィルム（ｌｌａ）（Ｊｌｂ）間に分散系
注入部０４）が形成されている。前記表側の基板フィル
ム（ｌｅａ）の分散系注入部Ｑ４）に臨む内側面には透
明電極から成るセグメント電極（１２ａ）が設けられ、
裏側の基板フィルム（Ｉｌｂ）の内側面には透明電極又
は金属電極からなるコモン電極（１２ｂ）が設けられて
いる。割基板フィルム（ｌｌａ）（ｌｌｂ）の接着には
、超音波接着あるいは半硬化状態の接着剤を用いるのが
良い。前記分散系注入部α４内には、これを小区間のセ
ル（１４ａ）に分割し、かつギャップを保持するために
感光性ポリイミド前駆体を用いて格子状に形成された区
画体αηが配設されている。前記分散系注入部α４の各
セル（１４ａ）に注入される分散系は、ｍ−キシレンに
青色の染料を溶かした液体分散媒（イ）とその中に加え
た酸化チタンからなる顔料粒子Ｍとから成っており、さ
らに非イオン系の界面活性剤が加えられている。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. (11a) is a front substrate film made of a polyester film or the like with good translucency. (llb) is a substrate film on the back side, which is made of polyester film or polyimide film. These front and back substrate films (Ila) and (Ilb) face each other with a gap except for the four circumferences, and the four circumferences are adhered to each other and the injection port for the dispersion system is sealed with a sealing resin (1, 1). , a dispersion system injection part 04) is formed between these substrate films (lla) (Jlb). A segment electrode (12a) made of a transparent electrode is provided on the inner surface facing the dispersion system injection part Q4) of the front substrate film (lea),
A common electrode (12b) made of a transparent electrode or a metal electrode is provided on the inner surface of the substrate film (Ilb) on the back side. For adhesion of the split substrate films (lla) (llb), it is preferable to use ultrasonic adhesion or a semi-cured adhesive. In the dispersion system injection part α4, a partition body αη formed in a lattice shape using a photosensitive polyimide precursor is disposed to divide it into small sections of cells (14a) and maintain gaps. has been done. The dispersion system injected into each cell (14a) of the dispersion system injection part α4 includes a liquid dispersion medium (a) in which a blue dye is dissolved in m-xylene, and pigment particles M made of titanium oxide added therein. It also contains a nonionic surfactant.

以上の構成によると、ギャップ間隔１　ｏｙｍの電気泳
動パネルで、印加電圧１５Ｖの時にコントラスト比５、
応答速度Ｉ　Ｑ　ｍ５ｅｃ、＋１５ＶＩ　Ｈｚのスイッ
チングｇこ対して１０　回繰り返しても顔料粒子ＯＱの
片寄りや凝集の起こらないものが得られる。According to the above configuration, in an electrophoretic panel with a gap spacing of 1 oym, when the applied voltage is 15 V, the contrast ratio is 5,
Even if the response speed I Q m5ec and the switching g of +15 VI Hz are repeated 10 times, no deviation or aggregation of the pigment particles OQ occurs.

以下具体例について説明する。A specific example will be explained below.

具体例１ 裏側の基板フィルム（Ｈｂ）としてコモン電極（１２ａ
）となる透明導電膜付の７５ｂｍ厚ＰＥＴフィルム、ハ
イビーム（東し株式会社製）を用い、その透明導電膜側
に、ドクターブレードで感光性ポリイミド前駆体、フォ
トニース（東し株式会社製）を乾燥後ＩＱｍｍとなる様
に塗布し、６０゛Ｃで２時間乾燥させる。その後各セル
（１４ａ）を形成すべく、第３図に示す様な格子状のパ
ターンのマスクを重ね、紫外線を１５秒照射し、現像、
リンスを行なって区画体（ロ）を形成する。次に６０′
Ｃで３時間乾燥後、セグメント電極（］、　２　ａ　”
）となる透明導電膜付の前記ＰＥＴフイルムを表側の基
板フィルム（１］、ａ）として重ね、分散系の注入口を
除いて半硬化状態のエポキシ系接着剤で接着する。硬化
は６０゛Ｃで５時間行う。次に、分散系を注入し、エポ
キシ系の瞬間接着剤から成る封口樹脂ａ３で封口する。Specific example 1 Common electrode (12a
) Using a 75bm thick PET film with a transparent conductive film, High Beam (manufactured by Toshi Co., Ltd.), apply a photosensitive polyimide precursor, Photoneese (manufactured by Toshi Co., Ltd.) to the transparent conductive film side with a doctor blade. After drying, apply to IQmm and dry at 60°C for 2 hours. After that, in order to form each cell (14a), masks with a grid pattern as shown in FIG.
Rinsing is performed to form a partition body (b). then 60'
After drying for 3 hours at C, the segment electrode (], 2 a ”
) The above PET film with a transparent conductive film is stacked as the front substrate film (1), a), and is bonded with a semi-cured epoxy adhesive except for the injection port for the dispersion system. Curing is carried out at 60°C for 5 hours. Next, the dispersion system is injected and sealed with a sealing resin A3 made of an epoxy-based instant adhesive.

この様にして作った電気泳動パネルは、１５Ｖの印加電
圧でコントラスト比５、応答速度Ｉ　Ｑ　ｍ５ｅｃ、　
＋　１５Ｖ　Ｉ　Ｈｚのスイッチングに対し、１０繰り
返しても顔料粒子αＱの片寄り、凝集は生じなかった。The electrophoretic panel made in this way had a contrast ratio of 5 and a response speed of IQ m5ec at an applied voltage of 15V.
Even after 10 repetitions of switching at +15V I Hz, no deviation or aggregation of the pigment particles αQ occurred.

具体例２ 裏側の基板フィルム（１１ｂ）として５０〃ｍ厚のポリ
イミドフィルムを用い、スパッタで酸化インジウムの透
明導電膜をこのフィルム上に形成した後、ドクターブレ
ードで具体例１き同様にフォトニースを塗布し、８０゛
Ｃで１時間乾燥させ、紫外線照射、現像、リンスを行う
。次に２５０”Ｏで１時間硬化させ、後は具体例１と同
様にパネルを作製する。この様にして作った電気泳動パ
ネルは、具体例１と同じ結果を得た。Specific Example 2 A polyimide film with a thickness of 50 m was used as the back side substrate film (11b), and after forming a transparent conductive film of indium oxide on this film by sputtering, PhotoNice was applied using a doctor blade in the same manner as in Specific Example 1. Coat, dry at 80°C for 1 hour, irradiate with ultraviolet rays, develop, and rinse. Next, it was cured at 250"O for 1 hour, and then a panel was produced in the same manner as in Example 1. The electrophoresis panel thus produced obtained the same results as in Example 1.

具体例３ 表側及び裏側の基板フィルム（Ｉｌａ）（Ｉｌｂ）とも
透明導電膜付のＰＥＴフィルム、ハイビームを用い、具
体例１と同様に感光性ポリイミド前駆体、フォトニース
で区画体α力を形成し、表側と裏側の基板フィルム（１
１ａ）、（１ｌｂ）を重ね、電極取り出し口を除いて超
音波接着で接着させる。Specific Example 3 Both the front and back substrate films (Ila) and (Ilb) used PET films with a transparent conductive film and high beam, and the same as in Specific Example 1, a partition α force was formed using a photosensitive polyimide precursor and Photonease. , the front and back side substrate films (1
1a) and (1lb) are overlapped and adhered by ultrasonic bonding except for the electrode outlet.

その後未接着の電極ｊ取り出口より分散系を注入し、エ
ポキシ系の瞬間接着剤から成る封口樹脂ａ３で封口する
。この様にして作った電気泳動パネルは具体例１と同じ
結果を得た。Thereafter, the dispersion system is injected from the outlet of the unbonded electrode j, and the electrode is sealed with a sealing resin a3 made of an epoxy-based instant adhesive. The electrophoresis panel produced in this manner gave the same results as in Example 1.

発明の効果 本発明の電気泳動パネルによれば、以上の説明から明ら
かな様に、表側及び裏側の２枚の基板フィルム間の分散
系注入部を小区間のセルに分割しているため、均一なギ
ャップを保持でき、大規模な顔料粒子の片寄りはなくな
り、又液体の攪拌が起こり易くなるため、凝集も起こり
にくくなり、大きな面積のパネルを作製することも可能
になる。Effects of the Invention According to the electrophoretic panel of the present invention, as is clear from the above explanation, the dispersion system injection part between the two substrate films on the front side and the back side is divided into small sections of cells, so that uniform A gap can be maintained, large-scale pigment particles are prevented from shifting, and agitation of the liquid is facilitated, so aggregation is less likely to occur, making it possible to produce panels with large areas.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来例の縦断面図、第２図及び第３図は本発明
の一実施例を示し、第２図は縦断面図、第３図は横断平
面図である。 （Ｉｌａ）は表側の基板フィルム、（ｌｌｂ）は裏側の
基板フィルム、（１２ａ）はセグメント電極、（１２ｂ
）はコモン電極、α委は分散系注入部、（１４ａ）はセ
ル、Ｑｌｌｌは液体分散媒、ＯＱは顔料粒子、０７）は
区画体。 特許出願人代理人 弁理士山水　孝 第１　図FIG. 1 is a longitudinal cross-sectional view of a conventional example, FIGS. 2 and 3 show an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view, and FIG. 3 is a cross-sectional plan view. (Ila) is the substrate film on the front side, (llb) is the substrate film on the back side, (12a) is the segment electrode, (12b)
) is a common electrode, α is a dispersion injection part, (14a) is a cell, Qll is a liquid dispersion medium, OQ is a pigment particle, and 07) is a partition. Patent applicant representative Patent attorney Takashi Sanmizu Figure 1

Claims (5)

【特許請求の範囲】[Claims] （１）少くとも一方に透明導電膜を設けた２枚の基板フ
ィルム間に分散系注入部を形成し、この分散系注入部を
小区間のセルに分割してなる電気泳動パネル。(1) An electrophoretic panel in which a dispersion system injection part is formed between two substrate films each having a transparent conductive film provided on at least one side, and the dispersion system injection part is divided into small sections of cells. （２）前記分散系注入部は、感光性ポリイミド前駆体に
より形成された区画体にて小区間のセルに分割されてい
る特許請求の範囲第１項に記載のｉｉ電気泳動パネル(2) The ii electrophoretic panel according to claim 1, wherein the dispersion system injection part is divided into small sections of cells by partitions formed of a photosensitive polyimide precursor. （３）前記基板フィルムが、ポリエステル又はポリイミ
ドから成る特許請求の範囲ＷＳ１項又は第２項に記載の
電気泳動パネル。(3) The electrophoretic panel according to claim WS1 or 2, wherein the substrate film is made of polyester or polyimide. （４）前記２枚の基板フィルムが超音波接着されている
特許請求の範囲第１項乃至第３項の何れかに記載の電気
泳動パネル。(4) The electrophoretic panel according to any one of claims 1 to 3, wherein the two substrate films are ultrasonically bonded. （５）前記２枚の基板フィルムが接着剤にて接着されて
いる特許請求の範囲第１項乃至第３　Ｔ１４の何れかに
記載の電気泳動パネル。(5) The electrophoretic panel according to any one of claims 1 to 3 T14, wherein the two substrate films are bonded together with an adhesive.
JP57145000A 1982-08-21 1982-08-21 Electrophoresis panel Pending JPS5934518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57145000A JPS5934518A (en) 1982-08-21 1982-08-21 Electrophoresis panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57145000A JPS5934518A (en) 1982-08-21 1982-08-21 Electrophoresis panel

Publications (1)

Publication Number Publication Date
JPS5934518A true JPS5934518A (en) 1984-02-24

Family

ID=15375130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57145000A Pending JPS5934518A (en) 1982-08-21 1982-08-21 Electrophoresis panel

Country Status (1)

Country Link
JP (1) JPS5934518A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0212225A (en) * 1988-06-30 1990-01-17 Nippon Mektron Ltd Electrophoretic display element
US6859302B2 (en) 2000-03-03 2005-02-22 Sipix Imaging, Inc. Electrophoretic display and novel process for its manufacture
US6865012B2 (en) 2000-03-03 2005-03-08 Sipix Imaging, Inc. Electrophoretic display and novel process for its manufacture
US6876476B1 (en) 1999-05-18 2005-04-05 Canon Kabushiki Kaisha Display device and process for production thereof
US6906779B2 (en) 2001-02-15 2005-06-14 Sipix Imaging, Inc. Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web
US6933098B2 (en) 2000-01-11 2005-08-23 Sipix Imaging Inc. Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web
US6940634B2 (en) 2003-03-27 2005-09-06 Canon Kabushiki Kaisha Electrophoretic display device
WO2005116749A1 (en) 2004-05-31 2005-12-08 Brother Kogyo Kabushiki Kaisha Electrophoretic display
JP2012220943A (en) * 2011-04-14 2012-11-12 Dainippon Printing Co Ltd Electrophoretic display device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0212225A (en) * 1988-06-30 1990-01-17 Nippon Mektron Ltd Electrophoretic display element
US6876476B1 (en) 1999-05-18 2005-04-05 Canon Kabushiki Kaisha Display device and process for production thereof
US6958842B2 (en) 1999-05-18 2005-10-25 Canon Kabushiki Kaisha Display device and process for production thereof
US6933098B2 (en) 2000-01-11 2005-08-23 Sipix Imaging Inc. Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web
US6867898B2 (en) 2000-03-03 2005-03-15 Sipix Imaging Inc. Electrophoretic display and novel process for its manufacture
US6930818B1 (en) 2000-03-03 2005-08-16 Sipix Imaging, Inc. Electrophoretic display and novel process for its manufacture
US6865012B2 (en) 2000-03-03 2005-03-08 Sipix Imaging, Inc. Electrophoretic display and novel process for its manufacture
US6859302B2 (en) 2000-03-03 2005-02-22 Sipix Imaging, Inc. Electrophoretic display and novel process for its manufacture
US6906779B2 (en) 2001-02-15 2005-06-14 Sipix Imaging, Inc. Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web
US6940634B2 (en) 2003-03-27 2005-09-06 Canon Kabushiki Kaisha Electrophoretic display device
WO2005116749A1 (en) 2004-05-31 2005-12-08 Brother Kogyo Kabushiki Kaisha Electrophoretic display
CN100458537C (en) * 2004-05-31 2009-02-04 兄弟工业株式会社 Electrophoretic display
US7499210B2 (en) 2004-05-31 2009-03-03 Brother Kogyo Kabushiki Kaisha Electrophoretic display
JP2012220943A (en) * 2011-04-14 2012-11-12 Dainippon Printing Co Ltd Electrophoretic display device

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