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JP7615685B2 - Power supply member and light control film with power supply member - Google Patents

Power supply member and light control film with power supply member Download PDF

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JP7615685B2
JP7615685B2 JP2021000935A JP2021000935A JP7615685B2 JP 7615685 B2 JP7615685 B2 JP 7615685B2 JP 2021000935 A JP2021000935 A JP 2021000935A JP 2021000935 A JP2021000935 A JP 2021000935A JP 7615685 B2 JP7615685 B2 JP 7615685B2
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power supply
supply member
film
light
transparent conductive
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JP2022106146A (en
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真樹 辻
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Toppan Holdings Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings

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Description

本発明は調光フィルムに電圧を供給する給電部材に関する。 The present invention relates to a power supply member that supplies voltage to a light control film.

調光フィルムは、供給する電圧により光の散乱状態を変化させることが可能な光学的な素子であり、透明/不透明の切り替えや光の透過率を制御することができる。 A light-control film is an optical element that can change the scattering state of light depending on the voltage supplied to it, allowing it to switch between transparent and opaque and control the light transmittance.

調光フィルムを、ガラス板に貼り合わせたり、合わせガラスの中に設置することにより、例えば、いつもは透明な状態であるが、必要な時には不透明にすることができる部材を作製することができる。このような部材を建物や車両の窓に使用することにより、建物や車両の中の明るさをコントロールすることが可能になる。そこで、視界を制御する部材として調光フィルムの普及が進められている。さらには、公衆トイレを取り囲む隔壁部材として使用し、トイレを使用していない時には内部が見える状態としておくことで、不審者が内部にいないことが確認でき、使用時には不透明となる公衆トイレのような犯罪防止や安全性確保などの分野への展開も検討されている。このように、調光フィルムの特色を活かした新たな用途が拡大しつつある。 By laminating light-controlling film to glass plates or installing it inside laminated glass, for example, it is possible to create a component that is normally transparent but can be made opaque when necessary. By using such a component in the windows of buildings or vehicles, it becomes possible to control the brightness inside the building or vehicle. For this reason, light-controlling films are becoming more and more popular as components for controlling visibility. Furthermore, they are being considered for use as partition components surrounding public toilets, so that the inside of the toilet can be seen when not in use, making it possible to confirm that no suspicious people are inside, and for use in areas such as crime prevention and safety assurance, such as public toilets that become opaque when in use. In this way, new applications that take advantage of the characteristics of light-controlling films are expanding.

調光フィルムの構造は、透明樹脂フィルムなどの透明基材の表面にITO(Indium Tin Oxide)などの透明導電膜を形成した一対の透明導電フィルムの透明導電膜側を内側にして、印加される電圧によって光の散乱状態が変化する調光層を挟持した積層体である。 The structure of the light-control film is a laminate consisting of a pair of transparent conductive films, each of which has a transparent conductive film such as ITO (Indium Tin Oxide) formed on the surface of a transparent substrate such as a transparent resin film, with the transparent conductive film side of the film facing inwards, sandwiching a light-control layer whose light scattering state changes depending on the applied voltage.

図4に例示したように、給電部材付き調光フィルム20´の調光フィルム8の端部には、調光フィルム8の透明導電膜(図示省略)に給電する給電部材1´を接続可能とする給電部材接続部15´が備えられている。給電部材接続部15´は調光フィルム8の端部において、一方の透明導電フィルムの透明基材を除去し、さらに調光層を除去することにより、もう一方の透明導電フィルムの透明導電膜を露出させた部分である。 As shown in FIG. 4, the end of the light control film 8 of the light control film with power supply member 20' is provided with a power supply member connection portion 15' that allows connection of a power supply member 1' that supplies power to the transparent conductive film (not shown) of the light control film 8. The power supply member connection portion 15' is a portion at the end of the light control film 8 where the transparent base material of one transparent conductive film is removed and the light control layer is further removed to expose the transparent conductive film of the other transparent conductive film.

この給電部材接続部15´において露出した透明導電膜と、給電部材1´と、がACF(Anisotropic Conductive Film、異方性導電フィルム)などの導電部材(図示省略)を介して、電気的に接続される。給電部材1´は、絶縁フィルム上に金属箔層を備えた部材である。給電部材1´としては、通常は、FPC(Flexible Printed Circuits、フレキシブルプリント基板)が使用されている。すなわち、ポリイミドフィルムなどからなる絶縁フィルム上に形成された金属箔層からなる配線(または電極、以後も同様)パターンが形成された物品が使用されている。 The transparent conductive film exposed at the power supply member connection portion 15' is electrically connected to the power supply member 1' via a conductive member (not shown) such as an ACF (Anisotropic Conductive Film). The power supply member 1' is a member having a metal foil layer on an insulating film. As the power supply member 1', an FPC (Flexible Printed Circuits) is usually used. That is, an article is used in which a wiring (or electrode, the same applies hereafter) pattern is formed from a metal foil layer formed on an insulating film such as a polyimide film.

図4に例示したように、給電部材1´の金属箔層からなる配線パターンは、接続端子3´と、この接続端子3´と連接し、調光フィルムの端部2と平行な配線4´と、この配線4´と連接したパッド電極へ繋がる配線6と、パッド電極5と、を備えている。なお、図4において、観察者側に絶縁フィルム17´が配置されており、観察者とは反対側の絶縁フィルム17´上に配線パターンが形成されている。 As shown in FIG. 4, the wiring pattern made of the metal foil layer of the power supply member 1' includes a connection terminal 3', a wire 4' connected to the connection terminal 3' and parallel to the end 2 of the light control film, a wire 6 connected to a pad electrode connected to the wire 4', and a pad electrode 5. In FIG. 4, an insulating film 17' is arranged on the observer side, and the wiring pattern is formed on the insulating film 17' on the opposite side to the observer.

上記の調光フィルムの端部2は、調光フィルム8における給電部材接続部15´が設けられた調光フィルム8の端部である。 The end 2 of the light-adjusting film is the end of the light-adjusting film 8 where the power supply member connection portion 15' is provided.

接続端子3´は、短冊状の金属箔層からなるパターンから構成されており、個々のパタ
ーンの長軸方向と直交する方向、すなわち、パターンが形成された平面において調光フィルムの端部2が延伸する方向、に一定のピッチで、互いに平行に配置されている。さらに個々のパターンは、調光フィルムの端部2と平行な配線(または電極、以後も同様)4´に連接することで電気的に接続されている。すなわち、調光フィルムの端部2と平行な配線4´は、個々の接続端子3´と並列に接続された電極となっている。
The connection terminals 3' are composed of a pattern of a strip-shaped metal foil layer, and are arranged parallel to each other at a constant pitch in a direction perpendicular to the long axis direction of each pattern, i.e., in the direction in which the end 2 of the light-control film extends on the plane on which the pattern is formed. Furthermore, each pattern is electrically connected by connecting it to a wiring (or electrode, the same applies hereinafter) 4' parallel to the end 2 of the light-control film. In other words, the wiring 4' parallel to the end 2 of the light-control film is an electrode connected in parallel to each connection terminal 3'.

給電電極10´は、これらの、複数の接続端子3´と、調光フィルムの端部2と平行な配線4´と、から構成されており、調光フィルムの端部2と平行な配線4´は、調光フィルムの端部2の外側に配置されている。 The power supply electrode 10' is composed of these multiple connection terminals 3' and wiring 4' parallel to the end 2 of the light-control film, and the wiring 4' parallel to the end 2 of the light-control film is arranged outside the end 2 of the light-control film.

さらに、調光フィルムの端部2と平行な配線4´は、パッド電極へ繋がる配線6に連接することで電気的に接続されており、その配線6の端部領域には、電源からの給電配線と接続可能とするパッド電極5が備えられている。 Furthermore, the wiring 4' parallel to the end 2 of the light control film is electrically connected by connecting it to a wiring 6 that leads to a pad electrode, and the end region of the wiring 6 is provided with a pad electrode 5 that can be connected to a power supply wiring from a power source.

以上に説明したように、調光フィルムの端部2と平行な配線4´は、調光フィルムの端部2の外側に配置されているため、調光フィルム8の給電部材接続部15´の面と平行な平面内における、調光フィルムの端部2と直交する方向の給電電極10´の寸法は、調光フィルムの端部2と平行な配線4´の寸法だけ大きくなっていた。このことは、調光フィルムを使用した調光装置における狭額縁化を妨げる要因となっていた。すなわち、調光装置が調光する面に占める調光可能な調光領域の面積の比率を高くすることを制限していた。 As explained above, the wiring 4' parallel to the end 2 of the light-controlling film is disposed outside the end 2 of the light-controlling film, so that the dimension of the power supply electrode 10' in the direction perpendicular to the end 2 of the light-controlling film in a plane parallel to the surface of the power supply member connection portion 15' of the light-controlling film 8 is larger by the dimension of the wiring 4' parallel to the end 2 of the light-controlling film. This was a factor preventing the narrowing of the frame of a light-controlling device using a light-controlling film. In other words, it limited the increase in the ratio of the area of the dimming area that can be dimmed to the dimming surface of the light-controlling device.

このような問題点を解決することに関連する先行技術としては、特許文献1に、調光装置が調光する面の配線領域が狭く、従って調光シート全体における調光領域の面積割合を大きくすることができる調光シートを提供することを課題とした技術が開示されている。具体的には、調光シートの少なくとも一対の透明電極の片側の面の透明電極が、第1の方向を長さ方向とする複数の短冊形状に分割された構成とする。また、複数の短冊形状に分割された片側の面の透明電極は、いずれも第2の方向へ屈曲し、屈曲した第2の方向の端部で各々の給電部と接続する構成とすることによって、上記の課題を解決している。 As a prior art related to solving such problems, Patent Document 1 discloses a technology that aims to provide a light-controlling sheet in which the wiring area of the surface where the light control device controls the light is narrow, and therefore the area ratio of the light control area to the entire light-controlling sheet can be increased. Specifically, the transparent electrode on one side of at least one pair of transparent electrodes of the light-controlling sheet is configured to be divided into multiple rectangular shapes with a first direction as the length direction. In addition, the transparent electrodes on one side divided into multiple rectangular shapes are all bent in a second direction, and the bent ends in the second direction are connected to the respective power supply units, thereby solving the above problem.

しかしながらこの技術は、調光シートを複数の短冊形状の領域に分割して駆動する場合には有効であるが、調光シートを分割して駆動しない、1つの面として駆動する場合には、調光シート全体における調光領域の面積割合を大きくすることはできない。 However, while this technology is effective when the light-adjusting sheet is divided into multiple rectangular regions and driven, if the light-adjusting sheet is not divided and driven but driven as a single surface, it is not possible to increase the area proportion of the light-adjusting region in the entire light-adjusting sheet.

特開2020-126153号公報JP 2020-126153 A

上記の事情に鑑み、本発明は、調光フィルムを分割して駆動しない場合においても、調光フィルム全体における調光可能領域の面積割合を大きくすることができる調光フィルムを提供することを課題とする。 In view of the above circumstances, the present invention aims to provide a light-control film that can increase the area ratio of the light-controllable region to the entire light-control film, even when the light-control film is not divided and driven.

上記の課題を解決する手段として、本発明の第1の態様は、透明基材の表面に透明導電膜を形成した一対の透明導電フィルムの透明導電膜側を内側にして、印加される電圧によって光の散乱状態が変化する調光層を挟持した積層体からなる調光フィルムの端部において、一方の透明導電フィルムの透明基材を除去し、さらに調光層を除去することにより、もう一方の透明導電フィルムの透明導電膜を露出させた部分である給電部材接続部に、導
電部材を介して接続する給電部材であって、
給電部材接続部の透明導電膜と接続する給電電極を備えており、
給電電極は、
短冊状の金属箔層からなる複数の接続端子と、
給電部材接続部における調光フィルムの端部と平行に備えられた配線Aと、を備えており、
複数の接続端子は、短冊状の接続端子の長手方向と直交する方向に、一定のピッチで、平行に、配置されており、
配線Aは、調光フィルムの端部の内側に備えられていることを特徴とする給電部材である。
As a means for solving the above problems, a first aspect of the present invention is a power supply member that is connected, via a conductive member, to a power supply member connection part, which is a part at an end of a light control film consisting of a pair of transparent conductive films, each having a transparent conductive film formed on a surface of a transparent substrate, with the transparent conductive film side of the pair of transparent conductive films facing inward and sandwiching a light control layer whose light scattering state changes depending on an applied voltage, by removing the transparent substrate of one of the transparent conductive films and further removing the light control layer to expose the transparent conductive film of the other transparent conductive film,
The power supply electrode is connected to the transparent conductive film of the power supply member connection portion.
The power supply electrode is
A plurality of connection terminals each made of a rectangular metal foil layer;
A wiring A is provided in parallel with the end of the light control film at the power supply member connection portion,
The plurality of connection terminals are arranged in parallel at a constant pitch in a direction perpendicular to the longitudinal direction of the strip-shaped connection terminals,
The wiring A is a power supply member that is characterized by being provided on the inside of the end of the light control film.

また、第2の態様は、第1の態様に記載の給電部材が前記調光フィルムの前記給電部材接続部に接続されていることを特徴とする給電部材付き調光フィルムである。 The second aspect is a light-control film with a power supply member, characterized in that the power supply member described in the first aspect is connected to the power supply member connection portion of the light-control film.

また、第3の態様は、前記導電部材が異方性導電フィルムであることを特徴とする第2の態様に記載の給電部材付き調光フィルムである。 The third aspect is the light control film with power supply member described in the second aspect, characterized in that the conductive member is an anisotropic conductive film.

本発明の給電部材は、調光フィルムの端部において、一方の透明導電フィルムの透明基材を除去し、さらに調光層を除去することにより、もう一方の透明導電フィルムの透明導電膜を露出させた部分である給電部材接続部に、導電部材を介して接続する給電部材である。その給電部材は、給電部材接続部の透明導電膜と接続する給電電極を備えている。給電電極は、短冊状の金属箔層からなる複数の接続端子と、給電部材接続部における調光フィルムの端部と平行に備えられた配線、を備えている。複数の接続端子は、短冊状の接続端子の長手方向と直交する方向に、一定のピッチで、平行に、配置されており、配線Aは、調光フィルムの端部の内側に備えられている。そのため、給電部材の調光フィルムの端部と直交する方向の幅を狭くすることが可能となる。以上から、調光フィルムを分割して駆動しない場合においても、調光フィルム全体における調光領域の面積割合を大きくすることができる。 The power supply member of the present invention is a power supply member that is connected via a conductive member to a power supply member connection portion, which is a portion where the transparent base material of one transparent conductive film is removed at the end of the light control film and the light control layer is further removed to expose the transparent conductive film of the other transparent conductive film. The power supply member has a power supply electrode that connects to the transparent conductive film of the power supply member connection portion. The power supply electrode has a plurality of connection terminals made of a rectangular metal foil layer and wiring provided in parallel to the end of the light control film at the power supply member connection portion. The plurality of connection terminals are arranged in parallel at a constant pitch in a direction perpendicular to the longitudinal direction of the rectangular connection terminal, and the wiring A is provided inside the end of the light control film. Therefore, it is possible to narrow the width of the power supply member in the direction perpendicular to the end of the light control film. From the above, even if the light control film is not divided and driven, the area ratio of the light control area in the entire light control film can be increased.

また、本発明の給電部材付き調光フィルムは、本発明の給電部材を使用しているため、調光フィルムを分割して駆動しない場合においても、調光フィルム全体における調光領域の面積割合を大きくすることができる調光フィルムを提供可能である。 In addition, because the light-control film with power supply member of the present invention uses the power supply member of the present invention, it is possible to provide a light-control film that can increase the area ratio of the light-control region to the entire light-control film, even when the light-control film is not divided and driven.

本発明の給電部材付き調光フィルムを例示する上面説明図。FIG. 2 is a top view illustrating a light control film with a power supply member according to the present invention. 調光フィルムの層構成を例示する断面説明図。FIG. 2 is a cross-sectional explanatory diagram illustrating a layer structure of a light control film. 調光フィルムと給電部材の接続状態を例示する断面説明図。FIG. 4 is a cross-sectional explanatory diagram illustrating a connection state between the light control film and the power supply member. 従来の給電部材付き調光フィルムを例示する上面説明図。FIG. 13 is a top view illustrating a conventional light control film with a power supply member.

<給電部材>
本発明の給電部材1について、図1~図3を用いて説明する。
<Power supply member>
A power supply member 1 of the present invention will be described with reference to FIGS.

本発明の給電部材1は、透明基材11の表面に透明導電膜12を形成した一対の透明導電フィルム14の透明導電膜12側を内側にして、印加される電圧によって光の散乱状態が変化する調光層13を挟持した積層体(図2参照)からなる調光フィルムの端部2において(図1参照)、一方の透明導電フィルム14の透明基材11除去し、さらに調光層13を除去することにより、もう一方の透明導電フィルム14の透明導電膜12を露出させた部分である給電部材接続部15に、導電部材(図示省略)を介して接続する給電部材である。導電部材としては、例えばACF(異方性導電フィルム)を好適に使用することができる。 The power supply member 1 of the present invention is a power supply member that is connected to a power supply member connection part 15, which is a part where the transparent conductive film 12 of the other transparent conductive film 14 is exposed by removing the transparent substrate 11 of one transparent conductive film 14 and then removing the light control layer 13, at the end 2 of the light control film (see FIG. 1), consisting of a laminate (see FIG. 2) in which a pair of transparent conductive films 14 having a transparent conductive film 12 formed on the surface of a transparent substrate 11 are sandwiched with a light control layer 13 whose light scattering state changes depending on the applied voltage, by removing the transparent substrate 11 of one transparent conductive film 14 and then removing the light control layer 13. As the conductive member, for example, an ACF (anisotropic conductive film) can be suitably used.

また、本発明の給電部材1は、給電部材接続部15の透明導電膜12と接続する給電電極10と、給電電極10と連接するパッド電極へ繋がる配線6と、配線6の端部に備えられ、外部電源と接続するパッド電極5と、を備えている。 The power supply member 1 of the present invention also includes a power supply electrode 10 that connects to the transparent conductive film 12 of the power supply member connection portion 15, a wiring 6 that connects to a pad electrode that is connected to the power supply electrode 10, and a pad electrode 5 that is provided at the end of the wiring 6 and connects to an external power source.

給電電極10は、短冊状の金属箔層からなる配線パターン18からなる、複数の接続端子3と、給電部材接続部15における調光フィルムの端部2と平行に備えられた配線4と、を備えている(図1参照)。 The power supply electrode 10 has a plurality of connection terminals 3, each of which is made of a wiring pattern 18 made of a rectangular metal foil layer, and a wiring 4 arranged parallel to the end 2 of the light control film at the power supply member connection portion 15 (see Figure 1).

複数の接続端子3は、短冊状を有している。接続端子3はその短冊状における長手方向と直交する方向に、すなわち、短冊状の接続端子3の短辺方向に、一定のピッチで、平行に、配置されている。 The multiple connection terminals 3 are strip-shaped. The connection terminals 3 are arranged in parallel at a constant pitch in a direction perpendicular to the longitudinal direction of the strip, i.e., in the direction of the short sides of the strip-shaped connection terminals 3.

さらに、本発明における給電部材1の特徴は、配線4が調光フィルムの端部2の内側に備えられていることである。配線4が調光フィルムの端部2の内側に備えられていることで、給電部材1の接続端子3の長手方向における寸法、すなわち、給電部材1の給電部材接続部15における調光フィルムの端部2と直交する方向における寸法、を小さくすることができる。このことにより、調光フィルムを分割して駆動しない場合においても、調光フィルム全体における調光可能領域の面積割合を大きくすることが可能となる。 Furthermore, a feature of the power supply member 1 in the present invention is that the wiring 4 is provided inside the end 2 of the light control film. By providing the wiring 4 inside the end 2 of the light control film, it is possible to reduce the longitudinal dimension of the connection terminal 3 of the power supply member 1, i.e., the dimension in the direction perpendicular to the end 2 of the light control film at the power supply member connection part 15 of the power supply member 1. This makes it possible to increase the area ratio of the dimmable region in the entire light control film even when the light control film is not divided and driven.

(調光フィルムの端部)
調光フィルムの端部2は、給電電極10を接続可能とするために形成された給電部材接続部15の調光フィルム8の端部である。例えば、調光フィルム8が長方形である場合、給電部材接続部15は長方形の1つの辺に設けられる。調光フィルムの端部2は、給電部材接続部15が設けられた調光フィルム8の1つの辺を指す。
(Edge of light control film)
The end 2 of the light control film is the end of the light control film 8 at the power supply member connection part 15 formed to enable connection of the power supply electrode 10. For example, if the light control film 8 is rectangular, the power supply member connection part 15 is provided on one side of the rectangle. The end 2 of the light control film refers to one side of the light control film 8 on which the power supply member connection part 15 is provided.

(給電部材接続部)
給電部材接続部15は、図3に示したように、調光フィルム8の一対の透明導電フィルム14にそれぞれ備えられた透明導電膜12に、外部電源(図示省略)から給電配線を介して供給される調光フィルム8の駆動電圧を供給する接続部である。
(Power supply member connection part)
As shown in Figure 3, the power supply member connection portion 15 is a connection portion that supplies the driving voltage of the light control film 8, which is supplied from an external power source (not shown) via a power supply wiring, to the transparent conductive films 12 provided on each of a pair of transparent conductive films 14 of the light control film 8.

具体的には、図3に示したように、給電部材接続部15は、調光フィルム8の端部において、一対の透明導電フィルム14の透明導電膜12をそれぞれ露出させた部分である。露出させるため、一対の透明導電フィルム14の一方の透明基材11と、透明導電膜12と、調光層13と、を除去する。透明基材11と透明導電膜12の除去方法は、それらを切断可能な手段であれば特に限定されないが、例えば、カッター刃を用いて、調光層13に到達する深さで切り込みを入れることによって切断することが可能である。切断する形状は、接続する給電電極10の形状や寸法に合わせればよい。例えば、図1に例示したように、長方形に切断すればよい。調光層13の厚さを超えて切断しなければ、対向するもう一方の透明導電フィルム14にダメージを与えることを避けることができる。 Specifically, as shown in FIG. 3, the power supply member connection portion 15 is a portion where the transparent conductive film 12 of the pair of transparent conductive films 14 is exposed at the end of the light control film 8. To expose the transparent conductive film 12, the transparent base material 11, the transparent conductive film 12, and the light control layer 13 of one of the pair of transparent conductive films 14 are removed. The method of removing the transparent base material 11 and the transparent conductive film 12 is not particularly limited as long as it is a means capable of cutting them, but for example, it is possible to cut them by making an incision with a cutter blade to a depth that reaches the light control layer 13. The shape of the cut may be matched to the shape and dimensions of the power supply electrode 10 to be connected. For example, as shown in FIG. 1, it may be cut into a rectangle. As long as the cut does not exceed the thickness of the light control layer 13, it is possible to avoid damaging the other opposing transparent conductive film 14.

一方の透明導電フィルム14の透明基材11と透明導電膜12を切断後、切断した一方の透明導電フィルム14の切片を引きはがし、取り去る。取り去ることにより、調光層13が露出するので、調光層13を溶解可能な溶剤を使用して調光層13を拭き取る。以上のようにして、対向する透明導電フィルム14の透明導電膜12を露出させ、給電部材接続部15を形成することができる。 After cutting the transparent base material 11 and the transparent conductive film 12 of one of the transparent conductive films 14, the cut piece of the one transparent conductive film 14 is peeled off and removed. By removing it, the light-adjusting layer 13 is exposed, and the light-adjusting layer 13 is wiped off using a solvent capable of dissolving the light-adjusting layer 13. In this manner, the transparent conductive film 12 of the opposing transparent conductive film 14 is exposed, and the power supply member connection portion 15 can be formed.

次に、調光フィルム8の別の端部において、同様にして、対向する透明導電フィルム1
4にも給電部材接続部15を形成することができる。
Next, at another end of the light control film 8, the opposing transparent conductive film 1 is similarly
4, a power supply member connection portion 15 can also be formed.

(給電電極)
給電電極10(図1参照)は、絶縁フィルム17上に形成された短冊状やく形状の金属箔層からなる配線パターン18(図3参照)からなる、複数の接続端子3と、給電部材接続部15における調光フィルムの端部2と平行に備えられた配線4と、を備えている。パターン18の形状は、短冊状や矩形状、すなわち長方形としなくても良く、任意の形状としても構わない。
言い換えれば、給電電極10は、調光フィルムの端部2と平行に備えられた配線4が、配線4と直交する方向に平行に配置された複数の接続端子3の長手方向の中間位置において跨って形成され、複数の接続端子3を電気的に接続する構成となっている。そして、この給電電極10は、後述する、給電電極と配線6の接続部7に連接し、さらに、接続部7はパッド電極へ繋がる配線6に連接し、さらに、配線6の端部に形成されたパッド電極5に連接する給電部材1を構成している。
このような電極構成であることによって、調光フィルム8の透明導電膜12と給電電極10との接触面積を確保可能とすることが可能となる。そのため、給電電極10と透明導電膜12との接続抵抗が増加することがなく、給電部材1の調光フィルムの端部2と直交する方向の給電電極10の長さを小さくすることが可能となる。
給電部材1は、図3に示したように、絶縁フィルム17上に形成された金属箔層からなる配線パターン18によって一体的に形成することができる。例えば、FPC(Flexible Printed Circuits、フレキシブルプリント基板)によって給電部材1を形成することができる。
(Power supply electrode)
The power supply electrode 10 (see FIG. 1) includes a plurality of connection terminals 3, each of which is made of a wiring pattern 18 (see FIG. 3) made of a metal foil layer in the shape of a rectangular strip formed on an insulating film 17, and a wiring 4 provided in parallel to the end 2 of the light control film at the power supply member connection portion 15. The shape of the pattern 18 does not have to be a rectangular or rectangular shape, and may be any shape.
In other words, the power supply electrode 10 is configured such that the wiring 4 provided in parallel to the end 2 of the light control film straddles the longitudinal intermediate position of the multiple connection terminals 3 arranged in parallel in a direction perpendicular to the wiring 4, electrically connecting the multiple connection terminals 3. The power supply electrode 10 is connected to a connection portion 7 between the power supply electrode and the wiring 6 described below, and the connection portion 7 is further connected to the wiring 6 connected to the pad electrode, and further connected to the pad electrode 5 formed at the end of the wiring 6, forming a power supply member 1.
Such an electrode configuration makes it possible to ensure a contact area between the transparent conductive film 12 of the light control film 8 and the power supply electrode 10. Therefore, the connection resistance between the power supply electrode 10 and the transparent conductive film 12 does not increase, and it is possible to reduce the length of the power supply electrode 10 in the direction perpendicular to the end 2 of the light control film of the power supply member 1.
3, the power supply member 1 can be integrally formed by a wiring pattern 18 made of a metal foil layer formed on an insulating film 17. For example, the power supply member 1 can be formed by an FPC (Flexible Printed Circuits).

(調光フィルムの端部と平行な配線)
調光フィルムの端部と平行な配線4は、調光フィルムの端部2と平行な配線または平行に設けられた金属箔層からなる電極である。配線4は、全ての接続端子3と電気的に並列に接続された電極となっている。配線4が、全ての接続端子3と並列に接続されていることによって、調光フィルム8の透明導電膜12と電気的な偏りがなく接続することが容易となる。ここで給電電極10は、熱の集中を回避し、より均一な給電を可能な構成にすることが望まれる。従って、各接続端子3はいずれも同一形状、同一寸法であって、周期的に配設されている。また、配線4は、各接続端子3のほぼ中心部を横断するように形成されている。
(Wiring parallel to the edge of the light control film)
The wiring 4 parallel to the end of the light-control film is an electrode made of a metal foil layer arranged parallel to the end 2 of the light-control film or parallel to the end 2 of the light-control film. The wiring 4 is an electrode electrically connected in parallel to all the connection terminals 3. By connecting the wiring 4 in parallel to all the connection terminals 3, it becomes easy to connect the wiring 4 to the transparent conductive film 12 of the light-control film 8 without electrical bias. Here, it is desirable for the power supply electrode 10 to be configured to avoid heat concentration and enable more uniform power supply. Therefore, each connection terminal 3 has the same shape and size, and is arranged periodically. In addition, the wiring 4 is formed so as to cross approximately the center of each connection terminal 3.

(給電電極と配線の接続部)
給電電極と配線6の接続部7は、図1に示したように、給電電極10と、次に説明するパッド電極へ繋がる配線6との間にあって、それらを連接し電気的に接続する金属箔層からなる配線または電極である。
(Connection between power supply electrode and wiring)
As shown in FIG. 1, the connection portion 7 between the power supply electrode 10 and the wiring 6 is located between the power supply electrode 10 and the wiring 6 connected to the pad electrode described next, and is a wiring or electrode made of a metal foil layer that connects and electrically connects them.

(パッド電極へ繋がる配線)
パッド電極へ繋がる配線6は、給電電極と配線6の接続部7と、次に説明するパッド電極5との間になって、それらを連接し電気的に接続する金属箔層からなる配線または電極である。
(Wiring connected to pad electrodes)
The wiring 6 connected to the pad electrode is a wiring or electrode made of a metal foil layer that is disposed between a connection portion 7 between the power supply electrode and the wiring 6 and the pad electrode 5 described next, and connects and electrically connects them.

(パッド電極)
パッド電極5は、パッド電極へ繋がる配線6の端部領域上に形成された電極である。パッド電極5は、調光フィルム8を駆動する電圧を給電する電源(図示省略)に接続された給電配線(図示省略)と接続する電極である。パッド電極5は、金属箔層からなる配線6そのものであっても良いし、金属箔像層の上に形成されたはんだめっき層や硬質金めっき層、あるいは配線6の端部領域上に設置されたソケットなどの接続具であっても良い。
(Pad electrode)
The pad electrode 5 is an electrode formed on an end region of the wiring 6 connected to the pad electrode. The pad electrode 5 is an electrode that is connected to a power supply wiring (not shown) that is connected to a power source (not shown) that supplies a voltage to drive the light control film 8. The pad electrode 5 may be the wiring 6 itself made of a metal foil layer, or may be a solder plating layer or a hard gold plating layer formed on the metal foil layer, or a connector such as a socket installed on the end region of the wiring 6.

(透明基材)
透明基材11は、調光フィルムとしての自立性や容易に破損しない、などの機械的な強度を備え、且つ透明なフィルム状やシート状の基材であり、化学的に安定な材料であれば特に限定する必要はない。例えば、PET(ポリエチレンテレフタレート)フィルムなどの透明樹脂フィルムや各種のガラス板を挙げることができる。また、それら透明樹脂フィルムとガラス板とを貼り合わせた材料であっても良い。
(Transparent substrate)
The transparent substrate 11 is a transparent film- or sheet-shaped substrate that has mechanical strength such as self-supporting property as a light control film and does not easily break, and does not need to be particularly limited as long as it is a chemically stable material. For example, a transparent resin film such as a PET (polyethylene terephthalate) film or various glass plates can be mentioned. Also, a material in which such a transparent resin film and a glass plate are bonded together can be used.

(透明導電膜)
透明導電膜12は、光透過率が可視光領域で80%以上であり、体積抵抗率が1×10-3Ω・cm以下の薄膜であれば好適に使用することができる。例えば、ITO(Indium Tin Oxide)をはじめ、酸化錫系の透明導電膜でありATO(酸化錫にアンチモンをドープした薄膜)、FTO(酸化錫にフッ素をドープした薄膜)、AZO(酸化亜鉛にアルミニウムをドープした薄膜)、GZO(酸化亜鉛にガリウムをドープした薄膜)などが知られている。
(Transparent conductive film)
The transparent conductive film 12 can be suitably used as long as it is a thin film having a light transmittance of 80% or more in the visible light region and a volume resistivity of 1×10 −3 Ω·cm or less. For example, ITO (indium tin oxide) and other tin oxide-based transparent conductive films such as ATO (thin film of tin oxide doped with antimony), FTO (thin film of tin oxide doped with fluorine), AZO (thin film of zinc oxide doped with aluminum), and GZO (thin film of zinc oxide doped with gallium) are known.

透明導電膜12の形成方法は、真空蒸着法、スパッタリング法、化学的気相成長法などを使用して形成することができるが、より低抵抗な薄膜や面内の抵抗値ばらつきの低減が可能な成膜方法として、イオンプレーティング法や、アークプラズマ蒸着法などが知られている。 The transparent conductive film 12 can be formed using methods such as vacuum deposition, sputtering, and chemical vapor deposition, but ion plating and arc plasma deposition are known as methods capable of forming thin films with lower resistance and reducing in-plane resistance variation.

(調光層)
調光層13は、印加する電圧によって光の散乱状態が変化する材料が使用される。そのような材料として、高分子分散型液晶(PDLC)やポリマーネットワーク型液晶などの液晶材料などが用いられている。
(Light-adjusting layer)
A material whose light scattering state changes depending on the applied voltage is used for the light control layer 13. As such a material, a liquid crystal material such as polymer dispersed liquid crystal (PDLC) or polymer network liquid crystal is used.

また、調光層の駆動モードとして、ノーマルモードとリバースモードが知られている。
ノーマルモードは、調光層13に電圧が印加されている状態で、光の散乱状態が最小(透明)になり、電圧が印加されていない状態で、光の散乱状態が最大(不透明)になるモードである。従来はこのモードの調光層が使用されてきた。
Further, as driving modes for the light-controlling layer, a normal mode and a reverse mode are known.
The normal mode is a mode in which the light scattering state is minimum (transparent) when a voltage is applied to the light-controlling layer 13, and the light scattering state is maximum (opaque) when no voltage is applied. Conventionally, light-controlling layers in this mode have been used.

リバースモードは、調光層13に電圧が印加されている状態で、光の散乱状態が最大(不透明)になり、電圧が印加されていない状態で、光の散乱状態が最小(透明)になるモードである。近年、このリバースモードが実用化されるようになった。リバースモードでは、落雷や大災害などで電源が喪失した場合に透明になる。そのため、車両用の窓やエレベータなどに使用する調光機能を備えた窓においては、安全性が高いリバースモードの調光フィルムが検討されている。 In the reverse mode, the light scattering state is maximized (opaque) when a voltage is applied to the light-control layer 13, and is minimized (transparent) when no voltage is applied. In recent years, this reverse mode has come into practical use. In the reverse mode, the film becomes transparent if power is lost due to a lightning strike or a major disaster. For this reason, a highly safe reverse-mode light-control film is being considered for windows with a light-control function to be used in vehicle windows and elevators.

(絶縁フィルム)
絶縁フィルム17は、給電部材1の基材となる材料であり、その表面に金属箔層からなる配線パターン18を形成するため、電気的な絶縁材料が使用される。絶縁フィルム17の材料としては、電気的絶縁材料であり、フィルム状に加工可能な材料であれば特に限定する必要はない。例えば、FPCの絶縁フィルムとして知られているポリイミドフィルムを好適に使用することができる。ポリイミドフィルムは耐熱性が非常に高く、機械的な強度も十分に高いフィルムであり、電子機器に使用されるFPCに多用されているが、これに限定する必要はない。
(Insulating film)
The insulating film 17 is a material that serves as the base material of the power supply member 1, and an electrically insulating material is used for forming the wiring pattern 18 made of a metal foil layer on the surface of the insulating film 17. There is no need to limit the material of the insulating film 17 to any particular material as long as it is an electrically insulating material and can be processed into a film. For example, a polyimide film known as an insulating film for FPCs can be suitably used. Polyimide films are very heat-resistant and have sufficiently high mechanical strength, and are often used in FPCs used in electronic devices, but there is no need to limit the material thereto.

(金属箔層)
金属箔層の材料としては、導電性が銀の次に高く、銀よりはるかに低価格な銅箔を好適に使用することができるが、これに限定する必要はない。
(Metal foil layer)
As the material for the metal foil layer, copper foil, which has the second highest electrical conductivity after silver and is much less expensive than silver, can be suitably used, but it is not necessary to be limited thereto.

<調光フィルム>
本発明の給電部材付き調光フィルムについて、図1と図2を用いて説明する。
<Light control film>
The light control film with a power supply member of the present invention will be described with reference to FIG. 1 and FIG.

本発明の給電部材付き調光フィルム20は、調光フィルム8に本発明の給電部材1を備えた調光フィルムである。 The light control film with power supply member 20 of the present invention is a light control film in which the light control film 8 is equipped with the power supply member 1 of the present invention.

図1に示したように、本発明の給電歩合付き調光フィルム20は、調光フィルム8の端部2に給電部材接続部15を備えている。 As shown in FIG. 1, the power supply ratio-adjustable light control film 20 of the present invention has a power supply member connection portion 15 at the end 2 of the light control film 8.

給電部材接続部15は、図3に示したように、調光フィルム8の一対の透明導電フィルム14にそれぞれ備えられた透明導電膜12に、外部電源(図示省略)から給電配線(図示省略)を介して供給される調光フィルム8の駆動電圧を供給する接続部である。 As shown in FIG. 3, the power supply member connection portion 15 is a connection portion that supplies the driving voltage of the light control film 8, which is supplied from an external power source (not shown) via a power supply wiring (not shown), to the transparent conductive films 12 provided on each of the pair of transparent conductive films 14 of the light control film 8.

給電部材接続部15には、給電部材1の金属箔層からなる配線パターン18が、ACFなどの導電部材(図示省略)を介して接続される。 The power supply member connection portion 15 is connected to a wiring pattern 18 made of a metal foil layer of the power supply member 1 via a conductive member such as ACF (not shown).

以上に説明したように、本発明の給電部材付き調光フィルム20は、本発明の給電部材1を介して電源に接続される。そのため、調光フィルム8を分割して駆動しない場合においても、調光フィルム8全体における調光領域の面積割合を大きくすることができる調光フィルムを提供することができる。 As described above, the light control film 20 with power supply member of the present invention is connected to a power source via the power supply member 1 of the present invention. Therefore, even if the light control film 8 is not divided and driven, it is possible to provide a light control film that can increase the area ratio of the light control region to the entire light control film 8.

1、1´・・・給電部材
2・・・調光フィルムの端部
3、3´・・・接続端子
4、4´・・・(調光フィルムの端部と平行な)配線
5・・・パッド電極
6、6´・・・(パッド電極へ繋がる)配線
7・・・給電電極と(パッド電極へ繋がる)配線6の接続部
8・・・調光フィルム
10、10´・・・給電電極
11・・・透明基材
12・・・透明導電膜
13・・・調光層
14・・・透明導電フィルム
15、15´・・・給電部材接続部
17、17´・・・絶縁フィルム
18・・・(金属箔層からなる)配線パターン
20、20´・・・給電部材付き調光フィルム
1, 1': power supply member 2: end of light control film 3, 3': connection terminal 4, 4': wiring (parallel to the end of the light control film) 5: pad electrode 6, 6': wiring (connected to pad electrode) 7: connection portion between power supply electrode and wiring 6 (connected to pad electrode) 8: light control film 10, 10': power supply electrode 11: transparent substrate 12: transparent conductive film 13: light control layer 14: transparent conductive film 15, 15': power supply member connection portion 17, 17': insulating film 18: wiring pattern (made of metal foil layer) 20, 20': light control film with power supply member

Claims (3)

透明基材の表面に透明導電膜を形成した一対の透明導電フィルムの透明導電膜側を内側にして、印加される電圧によって光の散乱状態が変化する調光層を挟持した積層体からなる調光フィルムの端部において、一方の透明導電フィルムの透明基材を除去し、さらに調光層を除去することにより、もう一方の透明導電フィルムの透明導電膜を露出させた部分である給電部材接続部に、導電部材を介して接続する給電部材であって、
給電部材接続部の透明導電膜と接続する給電電極を備えており、
給電電極は、絶縁フィルム上に、
短冊状の金属箔層からなる複数の接続端子と、
給電部材接続部における調光フィルムの端部と平行に備えられた配線と、を備えており、
複数の接続端子は、短冊状の接続端子の長手方向と直交する方向に、一定のピッチで、平行に、配置されており、
前記配線は、調光フィルムの端部の内側に備えられており、
前記複数の接続端子は、前記接続端子の長手方向における前記配線の両側に向けて前記配線からはみ出す接続端子を含むことを特徴とする給電部材。
A power supply member connected via a conductive member to a power supply member connection part, which is a part at an end of a light-control film consisting of a pair of transparent conductive films, each having a transparent conductive film formed on the surface of a transparent substrate, with the transparent conductive film side of the pair of transparent conductive films facing inward and sandwiching a light-control layer whose light scattering state changes depending on an applied voltage, by removing the transparent substrate of one of the transparent conductive films and then removing the light-control layer to expose the transparent conductive film of the other transparent conductive film,
The power supply electrode is connected to the transparent conductive film of the power supply member connection portion.
The power supply electrode is placed on the insulating film.
A plurality of connection terminals each made of a rectangular metal foil layer;
A wiring provided in parallel with an end of the light control film at the power supply member connection portion,
The plurality of connection terminals are arranged in parallel at a constant pitch in a direction perpendicular to the longitudinal direction of the strip-shaped connection terminals,
The wiring is provided on the inside of the end of the light control film ,
The power supply member , wherein the plurality of connection terminals include connection terminals extending from the wiring toward both sides of the wiring in a longitudinal direction of the connection terminals .
請求項1に記載の給電部材が前記調光フィルムの前記給電部材接続部に接続されていることを特徴とする給電部材付き調光フィルム。 A light control film with a power supply member, characterized in that the power supply member according to claim 1 is connected to the power supply member connection part of the light control film. 前記導電部材が異方性導電フィルムであることを特徴とする請求項2に記載の給電部材付き調光フィルム。 The light control film with power supply member according to claim 2, characterized in that the conductive member is an anisotropic conductive film.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002023186A (en) 2000-06-30 2002-01-23 Optrex Corp Panel heater for liquid crystal display element
WO2019194278A1 (en) 2018-04-05 2019-10-10 凸版印刷株式会社 Light control unit
JP2019184737A (en) 2018-04-05 2019-10-24 凸版印刷株式会社 Light control unit
CN111594023A (en) 2020-06-03 2020-08-28 江苏铁锚玻璃股份有限公司 Light modulation glass assembly and light modulation window

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62167225U (en) * 1986-04-14 1987-10-23
KR102085026B1 (en) * 2018-10-10 2020-03-06 주식회사 디케이이엔지 Reduction unit of winches for tower cranes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002023186A (en) 2000-06-30 2002-01-23 Optrex Corp Panel heater for liquid crystal display element
WO2019194278A1 (en) 2018-04-05 2019-10-10 凸版印刷株式会社 Light control unit
JP2019184737A (en) 2018-04-05 2019-10-24 凸版印刷株式会社 Light control unit
CN111594023A (en) 2020-06-03 2020-08-28 江苏铁锚玻璃股份有限公司 Light modulation glass assembly and light modulation window

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