JP5077616B2 - Display device, electronic apparatus, and display device manufacturing method - Google Patents

Display device, electronic apparatus, and display device manufacturing method Download PDF

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JP5077616B2
JP5077616B2 JP2005264094A JP2005264094A JP5077616B2 JP 5077616 B2 JP5077616 B2 JP 5077616B2 JP 2005264094 A JP2005264094 A JP 2005264094A JP 2005264094 A JP2005264094 A JP 2005264094A JP 5077616 B2 JP5077616 B2 JP 5077616B2
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moisture
proof film
film
display device
display
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JP2007078850A (en
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秀幸 川居
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Seiko Epson Corp
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Description

本発明は、表示装置、電子機器、および表示装置の製造方法に関するものである。   The present invention relates to a display device, an electronic apparatus, and a method for manufacturing the display device.

表示装置を各種電子機器へ応用する場合、表示装置自体の可撓性、軽量性等が求められる。そのため、表示装置の基板としてプラスチック基板が使用される。しかし、プラスチック基板は空気中の水分を十分に遮断できないことから、基板を透過した水分の影響によって表示素子が劣化し、装置の寿命が短くなるという問題があった。   When the display device is applied to various electronic devices, the display device itself is required to have flexibility and lightness. Therefore, a plastic substrate is used as the substrate of the display device. However, since the plastic substrate cannot sufficiently block moisture in the air, there is a problem in that the display element is deteriorated due to the influence of moisture transmitted through the substrate, and the life of the apparatus is shortened.

このような問題を解決する技術として、特許文献１に記載の電気泳動表示素子は、親水性高分子材料からなる透明樹脂フィルム層と、透明無機薄膜層とを含む透明複合フィルムを基板として使用している。これにより基板の防湿性を高めることができる。
また、特許文献２には、表示装置を一対の防湿フィルムで挟み、周辺部で防湿フィルム同士を密着させて封止する技術が開示されている。
特開２００３−２０２６０３号公報 特開平１０−１３３６０４号公報 As a technique for solving such a problem, the electrophoretic display element described in Patent Document 1 uses a transparent composite film including a transparent resin film layer made of a hydrophilic polymer material and a transparent inorganic thin film layer as a substrate. ing. Thereby, the moisture resistance of a board | substrate can be improved.
Patent Document 2 discloses a technique in which a display device is sandwiched between a pair of moisture-proof films and the moisture-proof films are in close contact with each other at the periphery.
JP 2003-202603 A JP-A-10-133604

しかし、上記の従来の方法では、周辺封止部においてフィルム同士を密着させるために防湿フィルムを屈曲させる必要があり、屈曲部において防湿フィルムを形成する無機膜にクラック等のダメージを与えてしまうことがあった。これにより、クラックが生じた箇所から水分が浸透し、表示素子の寿命が短縮される。   However, in the above conventional method, it is necessary to bend the moisture-proof film in order to bring the films into close contact with each other at the peripheral sealing portion, and the inorganic film forming the moisture-proof film is damaged at the bent portion, such as cracks. was there. Thereby, moisture permeates from the place where the crack is generated, and the life of the display element is shortened.

そこで本発明の目的は、表示素子の防湿膜の損傷を防ぎ、表示装置の耐久性を高めることである。   Therefore, an object of the present invention is to prevent damage to the moisture-proof film of the display element and enhance the durability of the display device.

上記目的を達成するため本発明による表示装置は、表示素子と、上記表示素子の表示面を覆うように設けられ、無機材料により形成される膜を含む透光性の第１の防湿膜と、上記表示素子の非表示面を覆うように設けられ、金属材料により形成される膜を含む非透光性の第２の防湿膜を備え、上記表示装置の外縁部において、上記第１の防湿膜と上記第２の防湿膜が密着し、密着部では、上記第２の防湿膜は屈曲部を有し、上記第１の防湿膜は屈曲部を持たず、上記第１の防湿膜および上記第２の防湿膜の端面を覆う保持部材で上記密着部が保持されるものである。
このように、可撓性の高い金属材料によって形成される第２の防湿膜のみを屈曲させ、損傷しやすい無機膜を含む第１の防湿膜は屈曲させないようにしたので、表示素子の防湿膜の損傷を防ぎ、表示装置の耐久性を高めることができる。
また、上記密着部は、樹脂材料で形成された上記保持部材でモールドされていてもよい。また、上記密着部は、上記保持部材としての固定部材で挟まれて固定されていてもよい。 In order to achieve the above object, a display device according to the present invention includes a display element, a light-transmitting first moisture-proof film that is provided so as to cover the display surface of the display element and includes a film formed of an inorganic material, A non-light-transmitting second moisture-proof film including a film formed of a metal material is provided so as to cover the non-display surface of the display element, and the first moisture-proof film is provided at an outer edge portion of the display device. And the second moisture-proof film are in close contact with each other, and in the adhesion portion, the second moisture-proof film has a bent portion, the first moisture-proof film has no bent portion, and the first moisture-proof film and the first moisture-proof film The adhesion portion is held by a holding member that covers the end face of the moisture-proof film 2 .
As described above, since only the second moisture-proof film formed of a highly flexible metal material is bent and the first moisture-proof film including the easily damaged inorganic film is not bent, the moisture-proof film of the display element is not bent. Can be prevented, and the durability of the display device can be improved.
Moreover, the said close_contact | adherence part may be molded with the said holding member formed with the resin material. Moreover, the said close_contact | adherence part may be pinched | interposed and fixed by the fixing member as the said holding member.

上記表示素子は、例えば、一面に透明電極が形成された透光性の第１の基板と、一面に複数の画素電極を含む薄膜半導体回路層が形成され、その薄膜半導体回路層が前記透明電極に対向するように配置された第２の基板と、上記共通電極と上記薄膜半導体回路層との間に配置された電気泳動層とを備えた電気泳動表示装置とすることができる。このとき、上記第１の基板が上記第１の防湿膜の機能を有し、上記第２の基板が上記第２の防湿膜の機能を有するようにすれば、装置の規模を縮小することができる。
また、上記表示素子は、液晶ディスプレイやＥＬディスプレイであってもよい。 In the display element, for example, a transparent first substrate having a transparent electrode formed on one surface, and a thin film semiconductor circuit layer including a plurality of pixel electrodes formed on the entire surface, the thin film semiconductor circuit layer is formed of the transparent electrode. The electrophoretic display device may include a second substrate disposed so as to face the substrate, and an electrophoretic layer disposed between the common electrode and the thin film semiconductor circuit layer. At this time, if the first substrate has the function of the first moisture-proof film and the second substrate has the function of the second moisture-proof film, the scale of the apparatus can be reduced. it can.
The display element may be a liquid crystal display or an EL display.

また、本発明の電子機器は、上述した電気泳動装置を表示部として備える。ここで、電子機器は、電気泳動材料による表示を利用する表示部を備えるあらゆる機器を含むもので、ディスプレイ装置、テレビジョン装置、電子ペーパー、時計、電卓、携帯電話、携帯情報端末等を含む。また、「機器」という概念からはずれるもの、例えば可撓性のある紙状／フィルム状の物体、これら物体が貼り付けられた壁面等の不動産に属するもの、車両、飛行体、船舶等の移動体に属するものも含む。   In addition, an electronic apparatus according to the present invention includes the above-described electrophoresis apparatus as a display unit. Here, the electronic device includes any device including a display unit that uses display by an electrophoretic material, and includes a display device, a television device, electronic paper, a clock, a calculator, a mobile phone, a portable information terminal, and the like. Also, things that deviate from the concept of “equipment”, for example, flexible paper / film-like objects, belonging to real estate such as wall surfaces to which these objects are attached, moving objects such as vehicles, flying objects, ships, etc. Including those belonging to.

本発明の表示装置の製造方法は、無機材料により形成される膜を含む透光性の第１の防湿膜によって表示素子の表示面を覆い、金属材料により形成される膜を含む非透光性の第２の防湿膜によって上記表示素子の非表示面を覆い、上記表示装置の外縁部において、上記第２の防湿膜を屈曲させ、上記第１の防湿膜は屈曲させずに、上記第１の防湿膜と上記第２の防湿膜を密着させ、上記第１の防湿膜および上記第２の防湿膜の端面を覆う保持部材によって上記第１の防湿膜と上記第２の防湿膜との密着部を保持させるものである。
このように、可撓性の高い金属材料によって形成される第２の防湿膜のみを屈曲させ、損傷しやすい無機膜を含む第１の防湿膜は屈曲させないようにしたので、表示素子の防湿膜の損傷を防ぎ、表示装置の耐久性を高めることができる。 The display device manufacturing method of the present invention covers a display surface of a display element with a light-transmitting first moisture-proof film including a film formed of an inorganic material, and is non-translucent including a film formed of a metal material. The non-display surface of the display element is covered with the second moisture-proof film, the second moisture-proof film is bent at the outer edge of the display device, and the first moisture-proof film is not bent, and the first moisture-proof film is bent. The moisture-proof film and the second moisture-proof film are brought into close contact with each other , and the first moisture-proof film and the second moisture-proof film are formed by a holding member that covers end faces of the first moisture-proof film and the second moisture-proof film. The contact portion is held .
As described above, since only the second moisture-proof film formed of a highly flexible metal material is bent and the first moisture-proof film including the easily damaged inorganic film is not bent, the moisture-proof film of the display element is not bent. Can be prevented, and the durability of the display device can be improved.

上記第１の防湿膜と上記第２の防湿膜の密着は、例えば上記第１の防湿膜側に剛体平板を設置し、上記第２の防湿膜側から加圧することにより行うことができる。   The first moisture-proof film and the second moisture-proof film can be adhered to each other by, for example, installing a rigid flat plate on the first moisture-proof film side and applying pressure from the second moisture-proof film side.

また、上記第２の防湿膜は、上記表示素子の非表示面および上記第１の防湿膜の上記第２の防湿膜との密着面に金属材料を蒸着させることにより形成してもよい。これにより、加圧を行わずに、第１の防湿膜と第２の防湿膜の密着状態を確実に保持することができる。   The second moisture-proof film may be formed by vapor-depositing a metal material on the non-display surface of the display element and the contact surface between the first moisture-proof film and the second moisture-proof film. Thereby, the contact | adherence state of a 1st moisture-proof film | membrane and a 2nd moisture-proof film | membrane can be reliably hold | maintained, without performing pressurization.

以下、本発明の実施例について図面を参照して説明する。
実施の形態１．
図１は、本発明による表示装置１００の断面を示す図である。図に示すように、表示装置１００は、表示素子１０１、第１の防湿膜１０２、第２の防湿膜１０３を備えている。第１の防湿膜１０２は、透明樹脂フィルム１０４と無機膜１０５から形成される。
第１の防湿膜１０２は表示素子１０１のうち、画像表示を行う側に設けられ、第２の防湿膜１０３は逆側の面に設けられている。 Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a diagram showing a cross section of a display device 100 according to the present invention. As shown in the figure, the display device 100 includes a display element 101, a first moisture-proof film 102, and a second moisture-proof film 103. The first moisture-proof film 102 is formed from a transparent resin film 104 and an inorganic film 105.
The first moisture-proof film 102 is provided on the display element 101 on the image display side, and the second moisture-proof film 103 is provided on the opposite surface.

透明樹脂フィルム１０４は、例えばポリエチレンテレフタレート（ＰＥＴ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、ポリビニルアルコール（ＰＶＡ）、ポリエーテルサルフォン（ＰＥＳ）、ポリエチレンナフタレート（ＰＥＮ）、ポリカーボネート（ＰＣ）などの樹脂材料により形成される。
無機膜１０５は、酸化ケイ素、窒化ケイ素、酸化アルミニウム、酸化チタンなどの無機材料を用いて、透明樹脂フィルム１０４の表面に、スパッタリング、真空蒸着、ＣＶＤ等の気相堆積法により形成したり、あるいはゾルゲル法や、無機材料の微粒子分散液を透明樹脂フィルム１０４に塗工した後に焼結する等、液相法により形成したりすることができる。 The transparent resin film 104 is made of, for example, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), polyethersulfone (PES), polyethylene naphthalate (PEN), polycarbonate (PC), etc. It is formed of a resin material.
The inorganic film 105 is formed on the surface of the transparent resin film 104 by an inorganic material such as silicon oxide, silicon nitride, aluminum oxide, or titanium oxide by a vapor deposition method such as sputtering, vacuum evaporation, or CVD, or It may be formed by a sol-gel method or a liquid phase method such as sintering after applying a fine particle dispersion of an inorganic material to the transparent resin film 104.

第２の防湿膜１０３は、金属箔や、金属箔または金属薄膜と樹脂フィルムを積層した膜である。金属箔の例としては、厚さ５〜２０μｍ程度のアルミニウム箔があげられる。金属薄膜の例としては、アルミニウム、銅、クロム、チタン、ニッケル等を０．０３〜０．１μｍ程度の厚さに真空蒸着したものが上げられる。また、樹脂フィルムの例としてはポリエチレンテレフタレート（ＰＥＴ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、ポリビニルアルコール（ＰＶＡ）、ポリ塩化ビニル（ＰＣＶ）、ポリカーボネート（ＰＣ）、ポリイミド（ＰＩ）等があげられる。   The second moisture-proof film 103 is a film obtained by laminating a metal foil, a metal foil or a metal thin film, and a resin film. An example of the metal foil is an aluminum foil having a thickness of about 5 to 20 μm. As an example of a metal thin film, what vacuum-deposited aluminum, copper, chromium, titanium, nickel, etc. to the thickness of about 0.03-0.1 micrometer is raised. Examples of the resin film include polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), polyvinyl chloride (PCV), polycarbonate (PC), polyimide (PI), and the like. .

第１の防湿膜１０２と第２の防湿膜１０３は、表示素子１０１の外縁部において密着し、密着部１０６を形成している。図１に示すように、密着部１０６では、第２の防湿膜１０３は屈曲部１０７において屈曲しているが、第１の防湿膜１０２は実質的に屈曲していない。   The first moisture-proof film 102 and the second moisture-proof film 103 are in close contact with each other at the outer edge portion of the display element 101 to form a close contact portion 106. As shown in FIG. 1, in the adhesion portion 106, the second moisture-proof film 103 is bent at the bent portion 107, but the first moisture-proof film 102 is not substantially bent.

次に、表示装置１００の製造方法について説明する。
図２（Ａ）〜図２（Ｃ）は、表示装置１００の製造工程を示す図である。
まず、図２（Ａ）に示すように、表示素子１０１を挟むように、第１の防湿膜１０２と第２の防湿膜１０３を表示素子１０１に貼る。第１の防湿膜１０２と第２の防湿膜１０３は、表示素子１０１の周辺で密着させることができる程度の余剰部分１０８を有している。
なお、第１の防湿膜１０２と第２の防湿膜１０３の貼り合わせは同時に行う必要はない。例えば、まず第１の防湿膜１０２を表示素子１０１に貼り、次に第２の防湿膜１０３を貼っても良い。 Next, a method for manufacturing the display device 100 will be described.
2A to 2C are diagrams illustrating a manufacturing process of the display device 100. FIG.
First, as illustrated in FIG. 2A, the first moisture-proof film 102 and the second moisture-proof film 103 are attached to the display element 101 so as to sandwich the display element 101. The first moisture-proof film 102 and the second moisture-proof film 103 have an excessive portion 108 that can be brought into close contact with the periphery of the display element 101.
Note that the first moisture-proof film 102 and the second moisture-proof film 103 need not be bonded at the same time. For example, the first moisture-proof film 102 may be attached to the display element 101 first, and then the second moisture-proof film 103 may be attached.

次に、第２の防湿膜１０３を余剰部分１０８において屈曲させることにより、第１の防湿膜１０２と第２の防湿膜１０３を密着させる。
第２の防湿膜１０３を屈曲させる方法は、図２（Ｂ）に示すように、第１の防湿膜１０２に剛体平板を密着させた状態で、第２の防湿膜１０３側から加圧する。 Next, the first moisture-proof film 102 and the second moisture-proof film 103 are brought into close contact with each other by bending the second moisture-proof film 103 at the surplus portion 108.
As shown in FIG. 2B, the second moisture-proof film 103 is bent by applying pressure from the second moisture-proof film 103 side in a state where a rigid flat plate is in close contact with the first moisture-proof film 102.

加圧の方法としては、図３（Ａ）〜図３（Ｃ）に示すようなものがあげられる。
図３（Ａ）は、ロールラミネータを用いた方法であり、ローラーにより、第２の防湿膜１０３側から加圧することにより、第２の防湿膜１０３が表示素子１０１の形状に合わせて屈曲し、図２（Ｃ）に示すような屈曲部１０７が形成され、密着部１０６において第１の防湿膜１０２と第２の防湿膜１０３が密着する。 Examples of the pressurizing method include those shown in FIGS. 3 (A) to 3 (C).
FIG. 3A shows a method using a roll laminator. By applying pressure from the second moisture-proof film 103 side with a roller, the second moisture-proof film 103 is bent in accordance with the shape of the display element 101. A bent portion 107 as shown in FIG. 2C is formed, and the first moisture-proof film 102 and the second moisture-proof film 103 are in close contact with each other at the close contact portion 106.

図３（Ｂ）は真空ラミネータを用いた方法であり、第１の防湿膜１０２に剛体平板をあて、真空引きを行うことにより、屈曲部１０７が形成されて第１の防湿膜１０２と第２の防湿膜１０３が密着する。
また、図３（Ｃ）は型プレスを用いた方法であり、第１の防湿膜１０２に剛体平板をあて、第２の防湿膜１０３に型をあててプレスすることにより、屈曲部１０７が形成され、第１の防湿膜１０２と第２の防湿膜１０３が密着する。 FIG. 3B shows a method using a vacuum laminator. By applying a rigid flat plate to the first moisture-proof film 102 and evacuating it, a bent portion 107 is formed to form the first moisture-proof film 102 and the second moisture-proof film 102. The moisture-proof film 103 adheres closely.
FIG. 3C shows a method using a mold press. A bent portion 107 is formed by applying a rigid flat plate to the first moisture-proof film 102 and pressing a mold to the second moisture-proof film 103. Then, the first moisture-proof film 102 and the second moisture-proof film 103 are in close contact with each other.

第１の防湿膜１０２と第２の防湿膜１０３を密着させる際、第１の防湿膜１０２は屈曲させないため、無機膜１０５にクラック等のダメージが発生するのを防ぐことができる。一方、第２の防湿膜１０３は可撓性の高い金属箔あるいは金属薄膜により形成されているので、屈曲部１０７においてもクラック等の破損が生じない。   Since the first moisture-proof film 102 is not bent when the first moisture-proof film 102 and the second moisture-proof film 103 are brought into close contact with each other, it is possible to prevent the inorganic film 105 from being damaged such as a crack. On the other hand, since the second moisture-proof film 103 is formed of a highly flexible metal foil or metal thin film, the bent portion 107 is not damaged such as a crack.

次に、密着部１０６における第１の防湿膜１０２と第２の防湿膜１０３の密着状態を保持するための方法を図４（Ａ）〜図４（Ｃ）を用いて説明する。
図４（Ａ）では、密着部１０６を樹脂材料でモールドしている。樹脂材料としては、シリコン樹脂やエポキシ樹脂、アクリル等を用いることができる。
図４（Ｂ）では、密着部１０６を固定部材で挟んで固定している。固定部材は、金属やプラスチック、木材等で形成することができる。 Next, a method for maintaining the close contact state between the first moisture-proof film 102 and the second moisture-proof film 103 in the contact portion 106 will be described with reference to FIGS.
In FIG. 4A, the contact portion 106 is molded with a resin material. As the resin material, silicon resin, epoxy resin, acrylic, or the like can be used.
In FIG. 4B, the contact portion 106 is sandwiched and fixed by a fixing member. The fixing member can be formed of metal, plastic, wood, or the like.

また、図４（Ｃ）では、第１の防湿膜１０２と第２の防湿膜１０３が防湿性を有する接着剤を介して密着している。接着剤は、第１の防湿膜１０２と第２の防湿膜１０３を加圧により密着させる前に、第１の防湿膜１０２と第２の防湿膜１０３の密着面に供給しておき、その後加圧により密着させる。
接着剤としては、エポキシ樹脂、シリコン樹脂、アクリル樹脂等の樹脂系接着剤や、これらの樹脂系接着剤中に酸化ケイ素などの無機材料フィラーを含有させたものを用いることが望ましい。
これにより、第１の防湿膜１０２と第２の防湿膜１０３の密着状態を確実に保持すると共に、密着部１０６からの水分の浸入を効果的に防止することができる。 In FIG. 4C, the first moisture-proof film 102 and the second moisture-proof film 103 are in close contact with each other through an adhesive having moisture resistance. The adhesive is supplied to the contact surface between the first moisture-proof film 102 and the second moisture-proof film 103 before the first moisture-proof film 102 and the second moisture-proof film 103 are brought into close contact with each other by pressurization. Adhere with pressure.
As the adhesive, it is desirable to use a resin-based adhesive such as an epoxy resin, a silicon resin, or an acrylic resin, or a resin-based adhesive containing an inorganic material filler such as silicon oxide.
Thereby, while maintaining the contact | adherence state of the 1st moisture-proof film | membrane 102 and the 2nd moisture-proof film | membrane 103 reliably, the penetration | invasion of the water | moisture content from the contact part 106 can be prevented effectively.

また、表示素子１０１の表示面に第１の防湿膜１０２を貼り合わせた後、表示素子１０１の非表示面と第１の防湿膜１０２の第２の防湿膜１０３との密着面に、直接上述した金属材料を蒸着させることにより第２の防湿膜１０３を形成してもよい。この場合には、図２（Ｂ）に示す加圧の工程が不要となる。   Further, after the first moisture-proof film 102 is bonded to the display surface of the display element 101, the above-described direct contact is made on the adhesion surface between the non-display surface of the display element 101 and the second moisture-proof film 103 of the first moisture-proof film 102. The second moisture-proof film 103 may be formed by vapor deposition of the metal material. In this case, the pressurization step shown in FIG.

実施の形態２．
図５（Ａ）、（Ｂ）は、表示装置１００を電気泳動表示装置に適用した場合の断面を示す図である。図に示すように、表示素子１０１は、第１の基板２０１、電気泳動層２０２、第２の基板２０３を備えている。
第１の基板２０１は、透明電極が形成された透明基板である。第２の基板２０３には、画素電極を含む薄膜半導体回路層が形成されている。電気泳動層２０２は、１つ又は複数の種類の色の電気泳動粒子と電気泳動分散媒を含む電気泳動表示分散液の層である。 Embodiment 2. FIG.
5A and 5B are cross-sectional views when the display device 100 is applied to an electrophoretic display device. As shown in the figure, the display element 101 includes a first substrate 201, an electrophoretic layer 202, and a second substrate 203.
The first substrate 201 is a transparent substrate on which a transparent electrode is formed. A thin film semiconductor circuit layer including a pixel electrode is formed over the second substrate 203. The electrophoretic layer 202 is an electrophoretic display dispersion layer including electrophoretic particles of one or more types of colors and an electrophoretic dispersion medium.

また、図５（Ｂ）では、電気泳動層２０２が多数のマイクロカプセルから構成される。マイクロカプセルは、アラビアゴム・ゼラチン系の化合物やウレタン系の化合物等の柔軟性を有する材料で形成され、内部には電気泳動分散媒、電気泳動粒子が含まれている。マイクロカプセルは界面重合法や不溶化反応法、相分離法或いは界面沈殿法等の公知のマイクロカプセル化手法を用いて形成される。   In FIG. 5B, the electrophoretic layer 202 includes a large number of microcapsules. The microcapsules are formed of a flexible material such as gum arabic / gelatin compounds or urethane compounds, and contain an electrophoretic dispersion medium and electrophoretic particles. The microcapsules are formed using a known microencapsulation method such as an interfacial polymerization method, an insolubilization reaction method, a phase separation method, or an interfacial precipitation method.

なお、第１の基板２０１が第１の防湿膜１０２、第２の基板２０３が第２の防湿膜１０３の機能を有するように形成してもよい。具体的には、第１の基板２０１に酸化ケイ素等の無機膜を積層したり、第２の基板２０３にアルミニウム等の金属箔を積層したりしてもよい。   Note that the first substrate 201 may function as the first moisture-proof film 102, and the second substrate 203 may function as the second moisture-proof film 103. Specifically, an inorganic film such as silicon oxide may be stacked on the first substrate 201, or a metal foil such as aluminum may be stacked on the second substrate 203.

電子機器
図６は、本発明の表示装置を適用した電子機器の具体例を説明する斜視図である。図４（Ａ）は、電子機器の一例である電子ブックを示す斜視図である。この電子ブック１０００は、ブック形状のフレーム１００１と、このフレーム１００１に対して回動自在に設けられた（開閉可能な）カバー１００２と、操作部１００３と、本実施形態に係る表示装置によって構成された表示部１００４と、を備えている。
図６（Ｂ）は、電子機器の一例である腕時計を示す斜視図である。この腕時計１１００は、本実施形態に係る表示装置によって構成された表示部１１０１を備えている。
図６（Ｃ）は、電子機器の一例である電子ペーパーを示す斜視図である。この電子ペーパー１２００は、紙と同様の質感および柔軟性を有するリライタブルシートで構成される本体部１２０１と、本実施形態に係る表示装置によって構成された表示部１２０２と、を備えている。なお、表示装置を適用可能な電子機器の範囲はこれに限定されず、帯電粒子の移動に伴う視覚上の色調の変化を利用した装置を広く含むものである。例えば、上記のような装置の他、電気泳動フィルムが貼り合わせられた壁面等の不動産に属するもの、車両、飛行体、船舶等の移動体に属するものも該当する。 Electronic Device FIG. 6 is a perspective view illustrating a specific example of an electronic device to which the display device of the present invention is applied. FIG. 4A is a perspective view illustrating an electronic book which is an example of the electronic apparatus. The electronic book 1000 includes a book-shaped frame 1001, a cover 1002 that can be rotated (openable and closable) with respect to the frame 1001, an operation unit 1003, and the display device according to the present embodiment. Display unit 1004.
FIG. 6B is a perspective view illustrating a wrist watch which is an example of an electronic apparatus. The wristwatch 1100 includes a display unit 1101 configured by the display device according to the present embodiment.
FIG. 6C is a perspective view illustrating electronic paper which is an example of the electronic apparatus. The electronic paper 1200 includes a main body unit 1201 configured by a rewritable sheet having the same texture and flexibility as paper, and a display unit 1202 configured by the display device according to the present embodiment. Note that the range of electronic devices to which the display device can be applied is not limited to this, and includes a wide range of devices that utilize changes in visual color tone accompanying the movement of charged particles. For example, in addition to the above-described devices, those belonging to real estate such as wall surfaces to which an electrophoretic film is bonded, and those belonging to moving bodies such as vehicles, flying objects, and ships are also applicable.

本発明による表示装置の断面を示す図である。It is a figure which shows the cross section of the display apparatus by this invention. 図２（Ａ）〜図２（Ｃ）は、本発明による表示装置の製造工程を示す図である。2A to 2C are views showing a manufacturing process of the display device according to the present invention. 表示装置の第２の防湿膜の加圧手段を示す図である。It is a figure which shows the pressurization means of the 2nd moisture-proof film | membrane of a display apparatus. 図４（Ａ）〜図４（Ｃ）は、第１の防湿膜と第２の防湿膜の密着状態を保持するための方法を示す図である。FIG. 4A to FIG. 4C are diagrams illustrating a method for maintaining a close contact state between the first moisture-proof film and the second moisture-proof film. 図５（Ａ）、（Ｂ）は、本発明の表示装置を電気泳動表示装置に適用した場合の断面を示す図である。5A and 5B are cross-sectional views when the display device of the present invention is applied to an electrophoretic display device. 図６（Ａ）〜図６（Ｃ）は本発明の表示装置を適用した電子機器の具体例を説明する図である。6A to 6C are diagrams illustrating specific examples of electronic devices to which the display device of the present invention is applied.

符号の説明Explanation of symbols

１００ 表示装置、１０１ 表示素子、１０２ 第１の防湿膜、１０３ 第２の防湿膜、１０４ 透明樹脂フィルム、１０５ 無機膜、１０６ 密着部、１０７ 屈曲部、１０８ 余剰部分、２０１ 第１の基板、２０２ 電気泳動層、２０３ 第２の基板

DESCRIPTION OF SYMBOLS 100 Display apparatus, 101 Display element, 102 1st moisture-proof film, 103 2nd moisture-proof film, 104 Transparent resin film, 105 Inorganic film | membrane, 106 Contact | adherence part, 107 Bending part, 108 Excess part, 201 1st board | substrate, 202 Electrophoresis layer, 203 second substrate

Claims (8)

表示素子と、
前記表示素子の表示面を覆うように設けられ、無機材料により形成される膜を含む透光性の第１の防湿膜と、
前記表示素子の非表示面を覆うように設けられ、金属材料により形成される膜を含む非透光性の第２の防湿膜を備え、
前記表示素子の外縁部において、前記第１の防湿膜と前記第２の防湿膜が密着し、密着部では、前記第２の防湿膜は屈曲部を有し、前記第１の防湿膜は屈曲部を持たず、
前記第１の防湿膜および前記第２の防湿膜の端面を覆う保持部材で前記密着部が保持されることを特徴とする表示装置。 A display element;
A light-transmitting first moisture-proof film provided so as to cover the display surface of the display element and including a film formed of an inorganic material;
A non-translucent second moisture-proof film including a film formed of a metal material provided to cover the non-display surface of the display element;
The first moisture-proof film and the second moisture-proof film are in close contact with each other at the outer edge portion of the display element. In the contact portion, the second moisture-proof film has a bent portion, and the first moisture-proof film is bent. Have no part,
The display device, wherein the contact portion is held by a holding member that covers end faces of the first moisture-proof film and the second moisture-proof film. 前記密着部は、樹脂材料で形成された前記保持部材でモールドされている、請求項１に記載の表示装置。   The display device according to claim 1, wherein the contact portion is molded by the holding member made of a resin material. 前記密着部は、前記保持部材としての固定部材で挟まれて固定されている、請求項１に記載の表示装置。   The display device according to claim 1, wherein the contact portion is sandwiched and fixed by a fixing member as the holding member. 前記表示素子は、一面に透明電極が形成された透光性の第１の基板と、一面に複数の画素電極を含む薄膜半導体回路層が形成され、その薄膜半導体回路層が前記透明電極に対向するように配置された第２の基板と、前記共通電極と前記薄膜半導体回路層との間に配置された電気泳動層とを備えた電気泳動表示装置であることを特徴とする請求項１から３のいずれかに記載の表示装置。 In the display element, a transparent first substrate having a transparent electrode formed on one surface and a thin film semiconductor circuit layer including a plurality of pixel electrodes formed on the entire surface, the thin film semiconductor circuit layer faces the transparent electrode. 2. An electrophoretic display device comprising: a second substrate arranged in such a manner; and an electrophoretic layer arranged between the common electrode and the thin film semiconductor circuit layer. 4. The display device according to any one of 3 . 請求項１から請求項４のうちのいずれかに記載の表示装置を備えた電子機器。 Electronic apparatus including the display device according to any one of claims 1 to 4. 無機材料により形成される膜を含む透光性の第１の防湿膜によって表示素子の表示面を覆い、金属材料により形成される膜を含む非透光性の第２の防湿膜によって前記表示素子の非表示面を覆い、
前記表示素子の外縁部において、前記第２の防湿膜を屈曲させ、前記第１の防湿膜は屈曲させずに、前記第１の防湿膜と前記第２の防湿膜を密着させ、
前記第１の防湿膜および前記第２の防湿膜の端面を覆う保持部材によって前記第１の防湿膜と前記第２の防湿膜との密着部を保持させる表示装置の製造方法。 The display surface of the display element is covered with a light-transmitting first moisture-proof film including a film formed of an inorganic material, and the display element is covered with a non-light-transmitting second moisture-proof film including a film formed of a metal material Covering the hidden surface of
Bending the second moisture-proof film at the outer edge portion of the display element, and contacting the first moisture-proof film and the second moisture-proof film without bending the first moisture-proof film;
A method for manufacturing a display device, wherein a contact portion between the first moisture-proof film and the second moisture-proof film is held by a holding member that covers end faces of the first moisture-proof film and the second moisture-proof film. 前記第１の防湿膜と前記第２の防湿膜の密着は、前記第１の防湿膜側に剛体平板を設置し、前記第２の防湿膜側から加圧することにより行うことを特徴とする請求項６に記載の表示装置の製造方法。 The adhesion between the first moisture-proof film and the second moisture-proof film is performed by installing a rigid flat plate on the first moisture-proof film side and applying pressure from the second moisture-proof film side. Item 7. A method for manufacturing a display device according to Item 6 . 前記第２の防湿膜は、前記表示素子の非表示面および前記第１の防湿膜の前記第２の防湿膜との密着面に金属材料を蒸着させることにより形成することを特徴とする請求項６に記載の表示装置の製造方法。 The second moisture-proof film is formed by vapor-depositing a metal material on a non-display surface of the display element and a contact surface between the first moisture-proof film and the second moisture-proof film. 7. A method for manufacturing the display device according to 6 .
JP2005264094A 2005-09-12 2005-09-12 Display device, electronic apparatus, and display device manufacturing method Expired - Fee Related JP5077616B2 (en)

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