JP2019061253A - Light control cell, light control body, and moving body - Google Patents

Light control cell, light control body, and moving body Download PDF

Info

Publication number
JP2019061253A
JP2019061253A JP2018217471A JP2018217471A JP2019061253A JP 2019061253 A JP2019061253 A JP 2019061253A JP 2018217471 A JP2018217471 A JP 2018217471A JP 2018217471 A JP2018217471 A JP 2018217471A JP 2019061253 A JP2019061253 A JP 2019061253A
Authority
JP
Japan
Prior art keywords
electrode
conductive film
layer
light control
alignment layer
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.)
Granted
Application number
JP2018217471A
Other languages
Japanese (ja)
Other versions
JP7047724B2 (en
Inventor
博志 久保田
Hiroshi Kubota
博志 久保田
弘毅 渡
Hiroki Wataru
弘毅 渡
悟 二嶋
Satoru Nishima
悟 二嶋
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Publication of JP2019061253A publication Critical patent/JP2019061253A/en
Application granted granted Critical
Publication of JP7047724B2 publication Critical patent/JP7047724B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)

Abstract

To provide a light control cell capable of electrically conducting an external electrode and an electrode layer without removing an alignment layer.SOLUTION: A light control cell includes: a liquid crystal light control part in which light transmittance is variable; and an electrode connection part 41 for connecting an external electrode. The liquid crystal light control part comprises a liquid crystal layer, an alignment layer 28, and an electrode layer 26. The electrode connection part 41 comprises a conductive film 30, the alignment layer 28, and the electrode layer 26. On the electrode connection part 41, the alignment layer 28 is arranged at least partially between the conductive film 30 and the electrode layer 26. A part of the conductive film 30 is arranged so as to dig into the alignment layer 28, which is arranged between the conductive film 30 and the electrode layer 26; and the conductive film 30 and the electrode layer 26 are electrically connected to each other.SELECTED DRAWING: Figure 3B

Description

本発明は、光の透過率が可変である液晶調光部と、外部電極を接続するための電極接続部とを備える調光セル、そのような調光セルを備える調光体、及びそのような調光体を備える移動体に関する。   The present invention relates to a light control cell including a liquid crystal light control unit having variable light transmittance, and an electrode connection unit for connecting an external electrode, a light control unit including such a light control cell, and the like The present invention relates to a mobile body provided with a light control body.

液晶の配向性を利用して光の透過率を調整する調光セルが知られており、電子シェード等として用いられている。   A light control cell is known which adjusts the light transmittance using the orientation of liquid crystal, and is used as an electronic shade or the like.

例えば特許文献１は、サンシェードとして利用可能な調光窓であって、自動車、電車及び船舶などの乗り物の窓に適用可能な調光窓を開示する。この調光窓では、高分子液晶及び低分子液晶を含む混合膜が、一対の透明電極膜によって挟まれている。   For example, Patent Document 1 discloses a light control window that can be used as a sunshade, and is applicable to windows of vehicles such as automobiles, trains, and ships. In this light control window, a mixed film containing high molecular weight liquid crystal and low molecular weight liquid crystal is sandwiched by a pair of transparent electrode films.

特開平０６−２７３７２５号公報Japanese Patent Application Laid-Open No. 06-273725

液晶を用いた上述のような調光セルにおいて、液晶層は配向層に隣接して設けられ、配向層を介して液晶層とは反対側に電極層が設けられている。したがって通常は、配向層、電極層及び基材層を有する積層体上に液晶が付与されることによって、液晶層、配向層、電極層及び基材層の積層構造が作られる。そのため液晶が付与される前の積層体では、電極層がポリイミド等の絶縁性の配向層によって被覆されているのが一般的である。このような積層体の電極層に対してＦＰＣ（Ｆｌｅｘｉｂｌｅ Ｐｒｉｎｔｅｄ Ｃｉｒｃｕｉｔｓ）等の外部電極を電気的に接続するためには、配向膜を取り除いて電極層を露出させ、その電極層の露出部分に外部電極を接続する必要があった。   In the above-described light control cell using liquid crystal, the liquid crystal layer is provided adjacent to the alignment layer, and the electrode layer is provided on the opposite side to the liquid crystal layer via the alignment layer. Therefore, usually, by applying the liquid crystal on the laminate having the alignment layer, the electrode layer and the base material layer, a laminated structure of the liquid crystal layer, the alignment layer, the electrode layer and the base material layer is produced. Therefore, in the laminate before the liquid crystal is applied, the electrode layer is generally covered with an insulating alignment layer such as polyimide. In order to electrically connect an external electrode such as FPC (Flexible Printed Circuits) to an electrode layer of such a laminate, the alignment film is removed to expose the electrode layer, and the electrode layer is exposed to the outside. It was necessary to connect the electrodes.

図９Ａ〜図９Ｄは、ＦＰＣ等の外部電極体１２を電極層４３に接続する工程の典型例を示す図であって、外部電極体１２が接続される電極接続部４１の断面構造を拡大して示す。まず、図９Ａに示すような配向層４２、電極層４３及び基材層４４の積層体を有する電極接続部４１のうち配向層４２が薬液処理等によって除去され、図９Ｂに示すように電極層４３が露出される。そして図９Ｃに示すように、外部支持部４７によって支持された外部電極４６と露出した電極層４３との間に、導電テープや導電ペーストによって構成される導電体５０が配置され、図９Ｄに示すように電極層４３、導電体５０及び外部電極体１２（特に外部電極４６）が圧着される。これにより、外部電極４６と電極層４３とは導電体５０を介して電気的に接続される。   FIGS. 9A to 9D are diagrams showing a typical example of the process of connecting the external electrode body 12 such as FPC to the electrode layer 43, and the sectional structure of the electrode connection portion 41 to which the external electrode body 12 is connected is enlarged. Show. First, the alignment layer 42 is removed by chemical treatment or the like in the electrode connection portion 41 having a laminate of the alignment layer 42, the electrode layer 43 and the base material layer 44 as shown in FIG. 9A, and the electrode layer as shown in FIG. 43 is exposed. Then, as shown in FIG. 9C, a conductor 50 made of a conductive tape or conductive paste is disposed between the external electrode 46 supported by the external support portion 47 and the exposed electrode layer 43, as shown in FIG. 9D. Thus, the electrode layer 43, the conductor 50, and the external electrode body 12 (especially, the external electrode 46) are pressure-bonded. Thereby, the external electrode 46 and the electrode layer 43 are electrically connected via the conductor 50.

このように液晶を用いた従来の調光セルでは、ＦＰＣ等の外部電極体を電極層に接続するために、事前に配向層を取り除いて電極層を露出させる必要があった。しかしながら、配向層を取り除く作業は、手間及びコストがかかる。また、配向層を適切に取り除くのは必ずしも容易ではない。配向層が適切に除去されずに電極層上に意図せずに残存してしまうと、導通不良等の不具合を招く。   Thus, in the conventional light control cell which used the liquid crystal, in order to connect external electrode bodies, such as FPC, to an electrode layer, it was necessary to remove an alignment layer in advance and to expose an electrode layer. However, the work of removing the alignment layer is laborious and costly. Also, it is not always easy to remove the alignment layer properly. If the alignment layer is unintentionally left on the electrode layer without being properly removed, problems such as conduction failure occur.

また特に近年では、樹脂の有する軽量性、変形可能性及び安全性等の特性に注目し、電極層を支持する基材層を樹脂で構成することの要望がある。しかしながら、樹脂はガラスと比較して損傷しやすく、上述のように配向層を除去する場合には、樹脂製の基材層を痛めてしまう懸念がある。   In recent years, in particular, attention has been paid to the properties such as lightness, deformability and safety possessed by resin, and there is a demand for forming a base material layer supporting the electrode layer with resin. However, the resin is easily damaged compared to glass, and there is a concern that the resin base layer may be damaged when removing the alignment layer as described above.

なお、外部電極が接続される電極接続部では予め配向層を設けずに電極層を露出させておくことで、配向層を取り除く上述の工程を省くことも考えられる。しかしながら、そのような特殊な構造の積層体を準備するには特別な処理が必要になり、手間及びコストがかかる。一方、光の透過率が可変である液晶調光部と、外部電極が接続される電極接続部との間で、配向層、電極層及び基材層の構成を共通化することによって、配向層の面内均一性が向上し、歩留まりも上がる。   In the electrode connection portion to which the external electrode is connected, it is also conceivable to omit the above-mentioned process of removing the alignment layer by exposing the electrode layer without providing the alignment layer in advance. However, preparing a laminate of such a special structure requires special treatment, which is time-consuming and costly. On the other hand, the alignment layer, the electrode layer, and the base material layer are commonly used between the liquid crystal light control unit, which has a variable light transmittance, and the electrode connection unit to which the external electrode is connected. In-plane uniformity is improved and yield is also increased.

そのため、配向層を除去せずに、外部電極と電極層とを適切に電気的に導通させることができる新たな技術の提案が望まれている。   Therefore, it is desired to propose a new technique capable of appropriately electrically conducting the external electrode and the electrode layer without removing the alignment layer.

本発明は上述の事情に鑑みてなされたものであり、配向層を除去せずに、外部電極と電極層とを電気的に導通させるための技術を提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a technique for electrically conducting an external electrode and an electrode layer without removing an alignment layer.

本発明の一態様は、光の透過率が可変である液晶調光部と、外部電極を接続するための電極接続部と、を備える調光セルであって、液晶調光部は、液晶層、配向層及び電極層を有し、電極接続部は、導電フィルム、配向層及び電極層を有し、電極接続部において、導電フィルムと電極層との間には少なくとも一部において配向層が配置され、導電フィルムの一部は、導電フィルムと電極層との間に配置される配向層に食い込んで配置され、導電フィルム及び電極層が相互に電気的に導通される調光セルに関する。   One embodiment of the present invention is a light control cell including a liquid crystal light control unit having variable light transmittance, and an electrode connection unit for connecting an external electrode, and the liquid crystal light control unit includes a liquid crystal layer An alignment layer and an electrode layer, the electrode connection portion includes a conductive film, an alignment layer, and an electrode layer, and in the electrode connection portion, an alignment layer is disposed at least partially between the conductive film and the electrode layer A portion of the conductive film is disposed in the alignment layer disposed between the conductive film and the electrode layer, and relates to a light control cell in which the conductive film and the electrode layer are electrically conducted to each other.

導電フィルム及び電極層の両者によって覆われる範囲の全体にわたって配向層が配置されていてもよい。   An alignment layer may be disposed over the entire area covered by both the conductive film and the electrode layer.

導電フィルムは、複数の導電粒子を含み、複数の導電粒子の少なくとも一部が、導電フィルムと電極層との間に配置される配向層に食い込んでいる。   The conductive film includes a plurality of conductive particles, and at least a portion of the plurality of conductive particles bites into an alignment layer disposed between the conductive film and the electrode layer.

複数の導電粒子の少なくとも一部は、導電フィルムと電極層との間に配置される配向層の厚みよりも大きな径を有してもよい。   At least a portion of the plurality of conductive particles may have a diameter larger than the thickness of the alignment layer disposed between the conductive film and the electrode layer.

複数の導電粒子の少なくとも一部は、導電フィルムと電極層との間に配置される配向層の厚み以下の径を有してもよい。   At least a portion of the plurality of conductive particles may have a diameter equal to or less than the thickness of the alignment layer disposed between the conductive film and the electrode layer.

電極接続部において、導電フィルム、配向層及び電極層によって構成される積層部の少なくとも一部は、１５０Ω・ｍ以下の比抵抗を示してもよい。   In the electrode connection portion, at least a part of the laminated portion constituted of the conductive film, the alignment layer, and the electrode layer may exhibit a specific resistance of 150 Ω · m or less.

導電フィルムの一方側に外部電極が貼り付けられ、導電フィルムの他方側に配向層が貼り付けられ、配向層に対する外部電極の引き剥がし力は、引張速度を３００ｍｍ／分とし、剥離角度を１８０度として測定を行った場合に１Ｎ／１０ｍｍ以上であってもよい。   The external electrode is attached to one side of the conductive film, the orientation layer is attached to the other side of the conductive film, and the peeling force of the external electrode to the orientation layer is a tensile speed of 300 mm / min and a peeling angle of 180 degrees. It may be 1 N / 10 mm or more when the measurement is performed.

液晶調光部及び電極接続部の各々は、電極層を支持する基材層を有し、基材層は樹脂によって構成されていてもよい。   Each of a liquid-crystal light control part and an electrode connection part may have a base material layer which supports an electrode layer, and the base material layer may be comprised by resin.

導電フィルムの一方側に外部電極が貼り付けられ、導電フィルムの他方側に配向層が貼り付けられ、導電フィルムは、相対的に厚い部分と相対的に薄い部分とを有し、外部電極は、導電フィルムのうち相対的に薄い部分を介し、電極層と電気的に導通されてもよい。   An outer electrode is attached to one side of the conductive film, an orientation layer is attached to the other side of the conductive film, the conductive film has a relatively thick portion and a relatively thin portion, and the outer electrode is Electrical conduction may be made to the electrode layer through a relatively thin portion of the conductive film.

調光セルは、電極接続部において、少なくとも配向層において存在するスペーサを更に備え、スペーサは、導電フィルムに食い込んでもよい。   The light control cell may further comprise a spacer present at least in the alignment layer at the electrode connection, and the spacer may bite into the conductive film.

導電フィルムの一方側に外部電極が貼り付けられ、導電フィルムの他方側に配向層が貼り付けられ、外部電極は、電極接続部の配向層に向かって先細るテーパー形状を有してもよい。   The outer electrode may be attached to one side of the conductive film, the alignment layer may be attached to the other side of the conductive film, and the outer electrode may have a tapered shape that tapers toward the alignment layer of the electrode connection portion.

導電フィルムの一方側に外部電極が貼り付けられ、導電フィルムの他方側に配向層が貼り付けられ、外部電極を介して導電フィルムとは反対側に、外部電極を支持する層状の外部支持部が設けられ、電極接続部において、外部電極が貼り付けられていない箇所における外部支持部と電極層との間の間隔は、外部電極が貼り付けられている箇所における外部支持部と電極層との間の間隔よりも小さくてもよい。   An external electrode is attached to one side of the conductive film, an orientation layer is attached to the other side of the conductive film, and a layered external support portion supporting the external electrode is provided on the opposite side to the conductive film via the external electrode. In the electrode connection portion, the distance between the external support portion and the electrode layer in the portion where the external electrode is not attached is the distance between the external support portion and the electrode layer in the portion where the external electrode is attached. It may be smaller than the interval of

本発明の他の態様は、上記のいずれかの調光セルと、調光セルを支持する透明部材と、を備える調光体に関する。   Another aspect of the present invention relates to a light control body including any of the above-described light control cells and a transparent member for supporting the light control cells.

本発明の他の態様は、上記の調光体を備える移動体に関する。   Another aspect of the present invention relates to a movable body provided with the above-mentioned light control body.

本発明によれば、配向層を除去せずに、外部電極と電極層とを電気的に導通させることができる。   According to the present invention, the external electrode and the electrode layer can be electrically conducted without removing the alignment layer.

図１は、調光セルの一例を示す平面図である。FIG. 1 is a plan view showing an example of a light control cell. 図２は、液晶調光部の構成例を示す拡大断面図である。FIG. 2 is an enlarged cross-sectional view showing a configuration example of the liquid crystal light control unit. 図３Ａは、本発明の一実施形態に係る電極接続部の構成例を示す拡大断面図である。FIG. 3A is an enlarged cross-sectional view showing a configuration example of an electrode connection portion according to an embodiment of the present invention. 図３Ｂは、本発明の一実施形態に係る電極接続部の構成例を示す拡大断面図である。FIG. 3B is an enlarged cross-sectional view showing a configuration example of an electrode connection portion according to an embodiment of the present invention. 図４Ａは、導電フィルムの一例を概略的に示す拡大断面図である。FIG. 4A is an enlarged sectional view schematically showing an example of a conductive film. 図４Ｂは、導電フィルムの一例を概略的に示す拡大断面図である。FIG. 4B is an enlarged sectional view schematically showing an example of the conductive film. 図５Ａは、導電フィルムの他の例を概略的に示す拡大断面図である。FIG. 5A is an enlarged sectional view schematically showing another example of the conductive film. 図５Ｂは、導電フィルムの他の例を概略的に示す拡大断面図である。FIG. 5B is an enlarged sectional view schematically showing another example of the conductive film. 図６Ａは、本発明の他の実施形態に係る電極接続部の第１構成例を示す拡大断面図である。FIG. 6A is an enlarged cross-sectional view showing a first configuration example of the electrode connection portion according to another embodiment of the present invention. 図６Ｂは、本発明の他の実施形態に係る電極接続部の第２構成例を示す拡大断面図である。FIG. 6B is an enlarged cross-sectional view showing a second configuration example of the electrode connection portion according to another embodiment of the present invention. 図７は、調光体を備えた移動体の一例（自動車）を概略的に示す斜視図である。FIG. 7 is a perspective view schematically showing an example (vehicle) of a movable body provided with a light control body. 図８は、調光体の一例を示す縦断面図である。FIG. 8 is a longitudinal sectional view showing an example of the light control body. 図９Ａは、ＦＰＣ等の外部電極体を電極層に接続する工程の典型例を示す図である。FIG. 9A is a view showing a typical example of the step of connecting an external electrode body such as FPC to the electrode layer. 図９Ｂは、外部電極体を電極層に接続する工程の典型例を示す図である。FIG. 9B is a view showing a typical example of the step of connecting the external electrode body to the electrode layer. 図９Ｃは、外部電極体を電極層に接続する工程の典型例を示す図である。FIG. 9C is a view showing a typical example of the step of connecting the external electrode body to the electrode layer. 図９Ｄは、外部電極体を電極層に接続する工程の典型例を示す図である。FIG. 9D is a view showing a typical example of the step of connecting the external electrode body to the electrode layer.

以下、図面を参照して本発明の一実施形態について説明する。なお、図示及び理解を容易にするため、図面に示される各要素のサイズや要素間のサイズ比率等は必ずしも図面間で一致していないが、当業者であれば各図面に示された要素のサイズやサイズ比率等を容易に理解することができる。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. For ease of illustration and understanding, the sizes of elements shown in the drawings and the size ratios among the elements do not necessarily coincide between the drawings, but one skilled in the art would recognize that the elements shown in the drawings are The size and size ratio can be easily understood.

図１は、調光セル１０の一例を示す平面図である。   FIG. 1 is a plan view showing an example of the light control cell 10.

本実施形態の調光セル１０は、液晶調光部２０及び外周部４０を備える。液晶調光部２０は、光の透過率が可変であり、例えば外部からの侵入光の透過率及び遮光率を変えて、所望の調光機能を発揮することができる。外周部４０は、液晶調光部２０に隣接して設けられ、図１に示す調光セル１０では液晶調光部２０の周囲に設けられている。この外周部４０には、ＦＰＣ等の外部電極体１２を接続するための電極接続部４１が設けられている。   The light control cell 10 of the present embodiment includes a liquid crystal light control unit 20 and an outer peripheral portion 40. The liquid crystal light control unit 20 has a variable light transmittance, and can exhibit a desired light control function by changing, for example, the transmittance and the light blocking ratio of intruding light from the outside. The outer peripheral portion 40 is provided adjacent to the liquid crystal light control unit 20, and is provided around the liquid crystal light control unit 20 in the light control cell 10 shown in FIG. The outer peripheral portion 40 is provided with an electrode connecting portion 41 for connecting an external electrode body 12 such as an FPC.

図２は、液晶調光部２０の構成例を示す拡大断面図である。なお、図２には液晶調光部２０を構成する要素の一部のみが簡略的に拡大して示されている。   FIG. 2 is an enlarged cross-sectional view showing a configuration example of the liquid crystal light control unit 20. As shown in FIG. In FIG. 2, only a part of the elements constituting the liquid crystal light control unit 20 is shown in a simplified manner.

液晶調光部２０は、一対の偏光板２１、２２と、偏光板２１、２２間に配置された一対の基材層２３、２４と、基材層２３、２４間に配置された一対の電極層２５、２６と、電極層２５、２６間に配置された一対の配向層２７、２８と、配向層２７、２８間に配置された液晶層２９とを有する。基材層２３によって支持されている電極層２５は配向層２７によって被覆され、基材層２４により支持されている電極層２６は配向層２８によって被覆されている。なお、本実施形態の基材層２３、２４は樹脂によって構成されている。   The liquid crystal light control unit 20 includes a pair of polarizing plates 21 and 22, a pair of base layers 23 and 24 disposed between the polarizing plates 21 and 22, and a pair of electrodes disposed between the base layers 23 and 24. It has layers 25 and 26, a pair of alignment layers 27 and 28 disposed between the electrode layers 25 and 26, and a liquid crystal layer 29 disposed between the alignment layers 27 and 28. The electrode layer 25 supported by the substrate layer 23 is covered by the alignment layer 27, and the electrode layer 26 supported by the substrate layer 24 is covered by the alignment layer 28. In addition, the base material layers 23 and 24 of this embodiment are comprised by resin.

液晶層２９は、液晶調光部２０の全体にわたって設けられているが、外周部４０には設けられていない。一方、配向層２７、２８、電極層２５、２６及び基材層２３、２４は、液晶調光部２０の全体だけではなく、外周部４０の全体にわたって設けられており、それぞれ液晶調光部２０及び外周部４０において一体的な構成を有する。偏光板２１、２２等の液晶調光部２０を構成する他の要素は、液晶調光部２０及び外周部４０にわたって設けられていてもよいし、液晶調光部２０のみに設けられていてもよい。   The liquid crystal layer 29 is provided over the entire liquid crystal light control unit 20, but is not provided on the outer peripheral portion 40. On the other hand, the alignment layers 27 and 28, the electrode layers 25 and 26, and the base layers 23 and 24 are provided not only over the entire liquid crystal light control unit 20 but over the entire outer peripheral portion 40. And the outer peripheral portion 40 has an integral structure. The other elements constituting the liquid crystal light control unit 20 such as the polarizing plates 21 and 22 may be provided across the liquid crystal light control unit 20 and the outer peripheral portion 40, or may be provided only in the liquid crystal light control unit 20. Good.

なお、液晶調光部２０の構成は特に限定されず、図２に示す構成以外の構成を有していてもよい。ただし、本実施形態の液晶調光部２０は、液晶層、配向層及び電極層を少なくとも有する。   In addition, the structure of the liquid-crystal light control part 20 is not specifically limited, You may have structures other than the structure shown in FIG. However, the liquid crystal light control unit 20 of the present embodiment includes at least a liquid crystal layer, an alignment layer, and an electrode layer.

液晶層として、典型的には、ＶＡ（Ｖｅｒｔｉｃａｌ Ａｌｉｇｎｍｅｎｔ）型、ＴＮ（Ｔｗｉｓｔｅｄ Ｎｅｍａｔｉｃ）型、ＩＰＳ（Ｉｎ−Ｐｌａｃｅ−Ｓｗｉｔｃｈｉｎｇ）型、及びＦＦＳ（Ｆｒｉｎｇｅ Ｆｉｅｌｄ Ｓｗｉｔｃｈｉｎｇ）型の液晶層が知られており、液晶調光部２０は液晶層の駆動方式に応じた構成を有する。図２に示す液晶調光部２０では液晶層２９の両側に電極層２５、２６が配置されているが、例えばＩＰＳ型の液晶層等を採用する液晶調光部２０では、電極が液晶層の片側にのみ配置されていてもよい。また液晶調光部２０がゲストホスト型の液晶層（すなわち二色性色素（ゲスト）及び液晶（ホスト）を含む液晶層）を採用する場合には、例えば、配向層によって付与される液晶の配向性に応じて、偏光板が液晶層の片側にのみ設けられていてもよいし、偏光板が設けられていなくてもよい。また液晶調光部２０は、上述の要素以外の要素を含んでいてもよく、例えば、液晶層の間隔を保持するためのスペーサ、シール部、インデックスマッチング層、ハードコート層、及びその他の機能体及び機能層が設けられていてもよい。   As liquid crystal layers, liquid crystal layers of VA (Vertical Alignment) type, TN (Twisted Nematic) type, IPS (In-Place-Switching) type, and FFS (Fringe Field Switching) type are typically known. The liquid crystal light control unit 20 has a configuration according to the driving method of the liquid crystal layer. In the liquid crystal light control unit 20 shown in FIG. 2, the electrode layers 25 and 26 are disposed on both sides of the liquid crystal layer 29, but in the liquid crystal light control unit 20 employing, for example, an IPS type liquid crystal layer, the electrodes are It may be disposed only on one side. When the liquid crystal light control unit 20 adopts a guest-host liquid crystal layer (that is, a liquid crystal layer containing a dichroic dye (guest) and a liquid crystal (host)), for example, the alignment of the liquid crystal applied by the alignment layer Depending on the nature, the polarizing plate may be provided only on one side of the liquid crystal layer, or may not be provided. In addition, the liquid crystal light control unit 20 may include elements other than the above-described elements. For example, a spacer for maintaining a space between liquid crystal layers, a seal portion, an index matching layer, a hard coat layer, and other functional units And a functional layer may be provided.

次に、電極接続部４１の構成について説明する。   Next, the configuration of the electrode connection portion 41 will be described.

図３Ａ及び図３Ｂは、本発明の一実施形態に係る電極接続部４１の構成例を示す拡大断面図であり、電極接続部４１を構成する複数層の積層方向（すなわち図１の紙面に垂直な方向）に関する断面を示す。図３Ａは、導電フィルム３０（例えばＡＣＦ：Ａｎｉｓｏｔｒｏｐｉｃ Ｃｏｎｄｕｃｔｉｖｅ Ｆｉｌｍ）が、両側に配置される外部電極体１２（すなわち外部電極４６及び外部支持部４７）と配向層２８、電極層２６及び基材層２４とから分離した状態を示す。図３Ｂは、基材層２４、電極層２６、配向層２８、導電フィルム３０及び外部電極体１２（すなわち外部電極４６及び外部支持部４７）が順次積層した状態を示す。   FIGS. 3A and 3B are enlarged cross-sectional views showing a configuration example of the electrode connection portion 41 according to an embodiment of the present invention, and the stacking direction of a plurality of layers constituting the electrode connection portion 41 Section) in the same direction. FIG. 3A shows an external electrode body 12 (i.e., an external electrode 46 and an external support 47) and an alignment layer 28, an electrode layer 26, and a base layer 24 on which conductive films 30 (e.g., ACF: Anisotropic Conductive Film) are disposed. And separated from the FIG. 3B shows a state in which the base material layer 24, the electrode layer 26, the alignment layer 28, the conductive film 30, and the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) are sequentially laminated.

電極接続部４１は、配向層２８、電極層２６及び基材層２４の他に、導電フィルム３０を有する。導電フィルム３０は配向層２８上に形成される。電極接続部４１において、導電フィルム３０と電極層２６との間には少なくとも一部領域において配向層２８が配置されている。図３Ａ及び図３Ｂに示す電極接続部４１では、導電フィルム３０と電極層２６との間の全領域において配向層２８が配置されており、導電フィルム３０及び電極層２６の両者によって覆われる範囲の全体にわたって配向層２８が配置されている。   The electrode connection portion 41 has a conductive film 30 in addition to the alignment layer 28, the electrode layer 26 and the base layer 24. The conductive film 30 is formed on the alignment layer 28. In the electrode connection portion 41, an alignment layer 28 is disposed between the conductive film 30 and the electrode layer 26 in at least a partial region. In the electrode connection portion 41 shown in FIGS. 3A and 3B, the alignment layer 28 is disposed in the entire region between the conductive film 30 and the electrode layer 26, and in the range covered by both the conductive film 30 and the electrode layer 26. An alignment layer 28 is disposed throughout.

そして導電フィルム３０の一部が、導電フィルム３０と電極層２６との間に配置される配向層２８に食い込んで配置されることによって、導電フィルム３０及び電極層２６は相互に電気的に導通される。なお、導電フィルム３０の形成方法は特に限定されない。典型的には、電極接続部４１の配向層２８上に導電フィルム３０を形成し、当該導電フィルム３０上に外部電極体１２（特に外部電極４６）を圧着することによって、導電フィルム３０の一部を配向層２８に食い込ませる。これにより、導電フィルム３０及び電極層２６は相互に電気的に導通され、外部電極４６及び電極層２６は導電フィルム３０を介して相互に電気的に導通される。   The conductive film 30 and the electrode layer 26 are electrically conducted to each other by disposing a part of the conductive film 30 in the alignment layer 28 disposed between the conductive film 30 and the electrode layer 26. Ru. In addition, the formation method of the conductive film 30 is not specifically limited. Typically, a conductive film 30 is formed on the alignment layer 28 of the electrode connection portion 41, and a part of the conductive film 30 is formed by pressure bonding the external electrode body 12 (particularly, the external electrode 46) onto the conductive film 30. Bites into the alignment layer 28. Thus, the conductive film 30 and the electrode layer 26 are electrically conducted to each other, and the outer electrode 46 and the electrode layer 26 are electrically conducted to each other via the conductive film 30.

導電フィルム３０の構成は、上述の機能を発揮するのであれば特に限定されないが、典型的には、導電フィルム３０は図４Ａ及び図４Ｂに示す構成や図５Ａ及び図５Ｂに示す構成を有しうる。   The configuration of the conductive film 30 is not particularly limited as long as it exhibits the above-mentioned function, but typically, the conductive film 30 has the configuration shown in FIGS. 4A and 4B or the configuration shown in FIGS. 5A and 5B. sell.

図４Ａ及び図４Ｂは、導電フィルム３０の一例を概略的に示す拡大断面図であり、電極接続部４１を構成する複数層の積層方向（すなわち図１の紙面に垂直な方向）に関する断面を示す。図４Ａは、導電フィルム３０が、両側に配置される外部電極体１２（すなわち外部電極４６及び外部支持部４７）と配向層２８、電極層２６及び基材層２４とから分離した状態を示す。図４Ｂは、基材層２４、電極層２６、配向層２８、導電フィルム３０及び外部電極体１２（すなわち外部電極４６及び外部支持部４７）が順次積層した状態を示す。   4A and 4B are enlarged cross-sectional views schematically showing an example of the conductive film 30, showing a cross section in the stacking direction of the plurality of layers constituting the electrode connection portion 41 (that is, the direction perpendicular to the paper of FIG. 1). . FIG. 4A shows a state in which the conductive film 30 is separated from the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) disposed on both sides, the alignment layer 28, the electrode layer 26, and the base layer 24. FIG. 4B shows a state in which the base material layer 24, the electrode layer 26, the alignment layer 28, the conductive film 30, and the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) are sequentially laminated.

図４Ａ及び図４Ｂに示す導電フィルム３０は、複数の導電粒子３１を含む。図４Ｂに示すように、導電フィルム３０及び配向層２８を介して外部電極体１２（特に外部電極４６）が電極層２６に圧着されている状態で、導電フィルム３０に含まれる複数の導電粒子３１の少なくとも一部は、導電フィルム３０と電極層２６との間に配置される配向層２８に食い込んでいる。   The conductive film 30 shown in FIGS. 4A and 4B includes a plurality of conductive particles 31. As shown in FIG. 4B, a plurality of conductive particles 31 contained in the conductive film 30 in a state where the external electrode body 12 (particularly, the external electrode 46) is pressure-bonded to the electrode layer 26 via the conductive film 30 and the alignment layer 28. At least partially penetrates into the alignment layer 28 disposed between the conductive film 30 and the electrode layer 26.

また特に、導電フィルム３０に含まれる複数の導電粒子３１の少なくとも一部は、図４Ａ及び図４Ｂに示すように、導電フィルム３０と電極層２６との間に配置される配向層２８の厚みよりも大きな径を有する。そして、外部電極体１２（特に外部電極４６）が導電フィルム３０上に配置され配向層２８及び電極層２６に向かって押圧されることにより、各導電粒子３１は配向層２８に食い込み、導電粒子３１と電極層２６との間の間隔が小さくなる。これにより、各導電粒子３１と電極層２６との間で絶縁破壊が生じ、外部電極４６と電極層２６とは各導電粒子３１を介して相互に電気的に導通可能となる。   Also, in particular, at least a portion of the plurality of conductive particles 31 included in the conductive film 30 is, as shown in FIGS. 4A and 4B, from the thickness of the alignment layer 28 disposed between the conductive film 30 and the electrode layer 26. Also has a large diameter. Then, the external electrode body 12 (in particular, the external electrode 46) is disposed on the conductive film 30 and pressed toward the alignment layer 28 and the electrode layer 26, so that each conductive particle 31 bites into the alignment layer 28. The distance between the electrode and the electrode layer 26 is reduced. As a result, dielectric breakdown occurs between each conductive particle 31 and the electrode layer 26, and the external electrode 46 and the electrode layer 26 can be electrically conducted to each other via the conductive particle 31.

図５Ａ及び図５Ｂは、導電フィルム３０の他の例を概略的に示す拡大断面図であり、電極接続部４１を構成する複数層の積層方向（すなわち図１の紙面に垂直な方向）に関する断面を示す。図５Ａは、導電フィルム３０が、両側に配置される外部電極体１２（すなわち外部電極４６及び外部支持部４７）と配向層２８、電極層２６及び基材層２４とから分離した状態を示す。図５Ｂは、基材層２４、電極層２６、配向層２８、導電フィルム３０及び外部電極体１２（すなわち外部電極４６及び外部支持部４７）が順次積層した状態を示す。   5A and 5B are enlarged cross-sectional views schematically showing another example of the conductive film 30, and a cross section in the stacking direction of the plurality of layers constituting the electrode connection portion 41 (that is, the direction perpendicular to the paper of FIG. 1). Indicates FIG. 5A shows a state in which the conductive film 30 is separated from the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) disposed on both sides, the alignment layer 28, the electrode layer 26, and the substrate layer 24. FIG. 5B shows a state in which the base material layer 24, the electrode layer 26, the alignment layer 28, the conductive film 30, and the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) are sequentially laminated.

図５Ａ及び図５Ｂに示す導電フィルム３０は、図４Ａ及び図４Ｂに示す導電フィルム３０と同様に、複数の導電粒子３１を含む。そして、導電フィルム３０及び配向層２８を介して外部電極体１２（特に外部電極４６）が電極層２６に圧着されている状態（図５Ｂ参照）で、導電フィルム３０に含まれる複数の導電粒子３１の一部が、導電フィルム３０と電極層２６との間に配置される配向層２８に食い込んでいる。   The conductive film 30 shown in FIGS. 5A and 5B includes a plurality of conductive particles 31 similarly to the conductive film 30 shown in FIGS. 4A and 4B. The plurality of conductive particles 31 contained in the conductive film 30 in a state where the external electrode body 12 (particularly, the external electrode 46) is pressure-bonded to the electrode layer 26 via the conductive film 30 and the alignment layer 28 (see FIG. 5B). A part of the bites bites into the alignment layer 28 disposed between the conductive film 30 and the electrode layer 26.

ただし、導電フィルム３０に含まれる複数の導電粒子３１の少なくとも一部は、図５Ａ及び図５Ｂに示すように、導電フィルム３０と電極層２６との間に配置される配向層２８の厚み以下の径を有する。そして、外部電極体１２（特に外部電極４６）が導電フィルム３０上に配置され配向層２８及び電極層２６に向かって押圧されることにより、一部の導電粒子３１が配向層２８に食い込み、導電粒子３１と電極層２６との間の間隔が小さくなる。これにより、導電粒子３１と電極層２６との間で絶縁破壊が生じ、外部電極４６と電極層２６とは導電粒子３１を介して電気的に導通可能となる。   However, at least a portion of the plurality of conductive particles 31 included in the conductive film 30 is equal to or less than the thickness of the alignment layer 28 disposed between the conductive film 30 and the electrode layer 26 as shown in FIGS. 5A and 5B. It has a diameter. Then, when the external electrode body 12 (particularly, the external electrode 46) is disposed on the conductive film 30 and pressed toward the alignment layer 28 and the electrode layer 26, a part of the conductive particles 31 bite into the alignment layer 28 to conduct electricity. The spacing between the particles 31 and the electrode layer 26 is reduced. Thereby, dielectric breakdown occurs between the conductive particles 31 and the electrode layer 26, and the external electrodes 46 and the electrode layer 26 can be electrically conducted via the conductive particles 31.

なお、図４Ａ及び図４Ｂに示す電極接続部４１と図５Ａ及び図５Ｂに示す電極接続部４１との各々において、導電粒子３１は配向層２８を貫いて電極層２６に接触していてもよいし、配向層２８を貫かず電極層２６に接触していなくてもよい。ただし、いずれにしても、外部電極４６と電極層２６とは導電粒子３１を介して電気的に導通可能である。導電粒子３１と電極層２６との間で絶縁破壊を確実に生じさせる観点からは、導電粒子３１が配向層２８を貫いて電極層２６に対して直接的に接触するように、導電フィルム３０及び配向層２８を介して外部電極体１２（特に外部電極４６）を電極層２６に圧着させることが好ましい。ただし、導電粒子３１と電極層２６とは必ずしも直接的に接触している必要はなく、導電粒子３１と電極層２６との間で絶縁破壊が生じる程度に導電粒子３１が電極層２６に近づいていればよい。   In each of electrode connection portion 41 shown in FIGS. 4A and 4B and electrode connection portion 41 shown in FIGS. 5A and 5B, conductive particles 31 may penetrate alignment layer 28 and be in contact with electrode layer 26. It does not have to be in contact with the electrode layer 26 without penetrating the alignment layer 28. However, in any case, the external electrode 46 and the electrode layer 26 can be electrically conducted via the conductive particles 31. From the viewpoint of reliably causing dielectric breakdown between the conductive particles 31 and the electrode layer 26, the conductive film 30 and the conductive film 30 can be made to directly contact the electrode layer 26 through the alignment layer 28. It is preferable that the external electrode body 12 (particularly, the external electrode 46) be pressure-bonded to the electrode layer 26 through the alignment layer 28. However, the conductive particles 31 and the electrode layer 26 do not necessarily have to be in direct contact, and the conductive particles 31 approach the electrode layer 26 to such an extent that dielectric breakdown occurs between the conductive particles 31 and the electrode layer 26. Just do it.

また、図４Ａ及び図４Ｂに示す電極接続部４１と図５Ａ及び図５Ｂに示す電極接続部４１との各々において、導電粒子３１は外部電極４６に接触していてもよいし、外部電極４６に接触していなくてもよい。ただし、いずれにしても、外部電極４６と電極層２６とは導電粒子３１を介して電気的に導通可能である。導電粒子３１と外部電極４６との間で電気的な導通を確実に確保する観点からは、導電粒子３１が外部電極４６に対して直接的に接触することが好ましい。ただし、導電粒子３１と外部電極４６とは必ずしも接触している必要はなく、導電粒子３１と外部電極４６との間で電気的な導通が可能な程度に導電粒子３１が外部電極４６に近づいていればよい。   In each of the electrode connection portion 41 shown in FIGS. 4A and 4B and the electrode connection portion 41 shown in FIGS. 5A and 5B, the conductive particles 31 may be in contact with the external electrode 46 or It does not have to be in contact. However, in any case, the external electrode 46 and the electrode layer 26 can be electrically conducted via the conductive particles 31. It is preferable that the conductive particles 31 be in direct contact with the external electrode 46 in order to ensure electrical conduction between the conductive particles 31 and the external electrode 46. However, the conductive particles 31 and the external electrode 46 do not have to be in contact with each other, and the conductive particles 31 are close to the external electrode 46 to such an extent that electrical conduction can be made between the conductive particles 31 and the external electrode 46 Just do it.

なお、各導電粒子３１は、電気伝導体と同等程度に電気を導通させることができるのであれば（例えば電気伝導率が１０６Ｓ／ｍ以上であれば）、その具体的な構成は特に限定されない。例えば、金属等の電気伝導体のみによって各導電粒子３１を構成してもよいし、樹脂や金属等を金属等（例えば銀や金）の優れた導電性を有する電気伝導体によってコーティングすることによって各導電粒子３１が作られてもよい。典型的には、ニッケル等の金属に金メッキを施した粒子を各導電粒子３１として使用することができる。このように複数の材料から構成される導電粒子３１は、その構成材料に基づく複数の特徴をバランス良く持つことができる。例えば、上述のように複数の材料を組み合わせることによって、単一種類の金属のみによって構成される導電粒子３１に比べ、各導電粒子３１を柔らかく構成することができ、各導電粒子３１が電極層２６を傷つけたり破損したりすることを防ぐことができる。また、図４Ａ、図４Ｂ、図５Ａ及び図５Ｂに示す各導電粒子３１は球体であるが、各導電粒子３１の形状は特に限定されず、各導電粒子３１は、配向層２８に食い込むことができる任意の形状を有することができる。また導電フィルム３０には、ほぼ一定の径を有する複数の導電粒子３１が含まれていてもよいし、様々な径を有する複数の導電粒子３１が含まれていてもよく、例えば、配向層２８の厚みよりも大きな径を有する導電粒子３１と配向層２８の厚み以下の径を有する導電粒子３１とが混在していてもよい。 In addition, as long as each electrically conductive particle 31 can conduct electricity to the same extent as the electrical conductor (for example, when the electrical conductivity is 10 6 S / m or more), the specific configuration is particularly limited. I will not. For example, each conductive particle 31 may be constituted only by an electric conductor such as metal, or by coating resin, metal or the like with an electric conductor having excellent conductivity such as metal (for example, silver or gold). Each conductive particle 31 may be made. Typically, particles obtained by gold plating a metal such as nickel can be used as each conductive particle 31. Thus, the conductive particles 31 composed of a plurality of materials can have a plurality of features based on the constituent materials in a well-balanced manner. For example, by combining a plurality of materials as described above, each conductive particle 31 can be softer than the conductive particle 31 made of only a single type of metal, and each conductive particle 31 has an electrode layer 26. Can be prevented from being damaged or damaged. Although each conductive particle 31 shown in FIG. 4A, FIG. 4B, FIG. 5A and FIG. 5B is a sphere, the shape of each conductive particle 31 is not particularly limited, and each conductive particle 31 may bite into the alignment layer 28 It can have any shape that can. The conductive film 30 may contain a plurality of conductive particles 31 having a substantially constant diameter, or may contain a plurality of conductive particles 31 having various diameters. For example, the alignment layer 28 The conductive particles 31 having a diameter larger than the thickness of the above may be mixed with the conductive particles 31 having a diameter equal to or less than the thickness of the alignment layer 28.

また、導電フィルム３０の構成成分のうち各導電粒子３１を保持する粒子保持材の構成成分や状態も特に限定されない。例えば、流動状態（例えば液状又はゲル状）の粒子保持材を各導電粒子３１とともに配向層２８上に塗布し、粒子保持材が流動状態を保持している間に外部電極体１２を導電フィルム３０上に圧着し、その後、粒子保持材を流動状態から固体状態に変化させてもよい。この場合には、導電粒子３１を配向層２８に食い込ませたり、導電フィルム３０の厚みを調整したり、導電フィルム３０を外部電極体１２（特に外部電極４６）及び配向層２８に対して適切に固着させたりすることが容易である。   Further, among the constituent components of the conductive film 30, the constituent components and the state of the particle holding material holding the conductive particles 31 are not particularly limited. For example, a particle holding material in a fluid state (for example, liquid or gel) is applied on the orientation layer 28 together with each conductive particle 31, and while the particle holding material is in a fluid state, It is possible to press on the top and then change the particle holding material from the fluidized state to the solid state. In this case, the conductive particles 31 may be cut into the alignment layer 28, the thickness of the conductive film 30 may be adjusted, or the conductive film 30 may be appropriately used for the external electrode body 12 (especially the external electrode 46) and the alignment layer 28. It is easy to fix.

なお、拡大図として提供されている上述の図４Ａ、図４Ｂ、図５Ａ及び図５Ｂでは一様な厚みを有する外部電極体１２が示されているが、外部電極体１２は必ずしも一様な厚みを有していなくてもよい。例えば、外部電極体１２のうち外部電極４６及び外部支持部４７が設けられている箇所と、外部支持部４７のみが設けられている箇所との間で厚みが異なっていてもよい。   Although FIG. 4A, FIG. 4B, FIG. 5A and FIG. 5B, which are provided as enlarged views, show the external electrode body 12 having a uniform thickness, the external electrode body 12 does not necessarily have a uniform thickness. You do not need to have For example, the thickness may be different between a portion of the external electrode body 12 where the external electrode 46 and the external support portion 47 are provided and a portion where only the external support portion 47 is provided.

図６Ａ及び図６Ｂは、本発明の他の実施形態に係る電極接続部４１の構成例を示す拡大断面図であり、電極接続部４１を構成する複数層の積層方向（すなわち図１の紙面に垂直な方向）に関する断面を示し、図６Ａは電極接続部４１の第１構成例を示し、図６Ｂは電極接続部４１の第２構成例を示す。図６Ａ及び図６Ｂは、基材層２４、電極層２６、配向層２８、導電フィルム３０及び外部電極体１２（すなわち外部電極４６及び外部支持部４７）が順次積層した状態を示す。なお図６Ａ及び図６Ｂに示す積層順序は、上述の図３〜図５に示す積層順序とは上下方向に関して逆になっている。これは単なる説明の便宜のためであり、図６Ａ及び図６Ｂに示す電極接続部４１は、図３〜図５に示す電極接続部４１とは異なる部分に対応するわけではなく、また図６Ａ及び図６Ｂに示す電極接続部４１の積層順序が図３〜図５に示す電極接続部４１の積層順序と逆になっているわけではない。また図６Ａ及び図６Ｂには、図４Ａ及び図４Ｂに示すような配向層２８の厚み以上の径を有する導電粒子３１が図示されているが、図５Ａ及び図５Ｂに示すような配向層２８の厚みよりも小さい径を有する導電粒子３１が導電フィルム３０に含まれる場合にも、同様にして電極接続部４１を構成することができる。   6A and 6B are enlarged cross-sectional views showing a configuration example of the electrode connection portion 41 according to another embodiment of the present invention, and the stacking direction of a plurality of layers constituting the electrode connection portion 41 (that is, in the plane of FIG. 1). 6A shows a first configuration example of the electrode connection portion 41, and FIG. 6B shows a second configuration example of the electrode connection portion 41. As shown in FIG. 6A and 6B show a state in which the base layer 24, the electrode layer 26, the alignment layer 28, the conductive film 30, and the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) are sequentially laminated. The stacking order shown in FIGS. 6A and 6B is opposite to the stacking order shown in FIGS. 3 to 5 in the vertical direction. This is merely for the convenience of description, and the electrode connections 41 shown in FIGS. 6A and 6B do not correspond to portions different from the electrode connections 41 shown in FIGS. The stacking order of the electrode connection portions 41 shown in FIG. 6B is not the reverse of the stacking order of the electrode connection portions 41 shown in FIGS. 6A and 6B show conductive particles 31 having a diameter equal to or larger than the thickness of the alignment layer 28 as shown in FIGS. 4A and 4B, but the alignment layer 28 as shown in FIGS. 5A and 5B. Even when conductive particles 31 having a diameter smaller than the thickness of the conductive film 31 are included in the conductive film 30, the electrode connection portion 41 can be configured in the same manner.

図６Ａ及び図６Ｂに示す電極接続部４１においても、導電フィルム３０の一方側（図６Ａ及び図６Ｂの下側）に外部電極４６を含む外部電極体１２が貼り付けられ、導電フィルム３０の他方側（図６Ａ及び図６Ｂの上側）に配向層２８、電極層２６及び基材層２４が貼り付けられている。したがって、導電フィルム３０を介して外部電極体１２（すなわち外部電極４６及び外部支持部４７）と配向層２８及び電極層２６とは対向する。   Also in the electrode connection portion 41 shown in FIGS. 6A and 6B, the external electrode body 12 including the external electrode 46 is attached to one side (the lower side of FIGS. 6A and 6B) of the conductive film 30. The alignment layer 28, the electrode layer 26, and the base material layer 24 are attached on the side (upper side in FIGS. 6A and 6B). Therefore, the external electrode body 12 (that is, the external electrode 46 and the external support portion 47), the alignment layer 28, and the electrode layer 26 face each other through the conductive film 30.

ただし図６Ａ及び図６Ｂに示す電極接続部４１では、導電フィルム３０は、相対的に厚い部分３０Ｂと相対的に薄い部分３０Ａとを有する。図６Ａ及び図６Ｂに示す電極接続部４１では、導電フィルム３０の相対的に薄い部分３０Ａは、外部電極４６が配置される箇所に対応し、導電フィルム３０のうち相対的に厚い部分３０Ｂは、外部電極体１２において外部電極４６が配置されていない箇所（すなわち外部支持部４７のみが設けられている箇所）に対応する。なお外部電極体１２にも相対的に厚い部分と相対的に薄い部分とが存在し、相対的に厚い部分に外部電極４６が設けられ、相対的に薄い部分には外部電極４６が設けられない。   However, in the electrode connection portion 41 shown in FIGS. 6A and 6B, the conductive film 30 has a relatively thick portion 30B and a relatively thin portion 30A. In the electrode connection portion 41 shown in FIGS. 6A and 6B, the relatively thin portion 30A of the conductive film 30 corresponds to the location where the external electrode 46 is disposed, and the relatively thick portion 30B of the conductive film 30 is: This corresponds to a place where the external electrode 46 is not disposed in the external electrode body 12 (that is, a place where only the external support portion 47 is provided). A relatively thick portion and a relatively thin portion exist in the external electrode body 12, the external electrode 46 is provided on the relatively thick portion, and the external electrode 46 is not provided on the relatively thin portion. .

そして外部電極４６は、導電フィルム３０のうち相対的に薄い部分３０Ａを介し、電極層２６と電気的に導通される。導電フィルム３０を介して外部電極体１２を電極接続部４１に貼り合わせる際に、導電フィルム３０のうち外部電極４６が設けられていない箇所（図６Ａ及び図６Ｂの符合「３０Ｂ」参照）に比べ、外部電極４６に対応する箇所（図６Ａ及び図６Ｂの符合「３０Ａ」参照）がより強く配向層２８に向かって押圧される。これにより、導電フィルム３０のうち外部電極４６に対応する箇所（図６Ａ及び図６Ｂの符合「３０Ａ」参照）に含まれる導電粒子３１が配向層２８に食い込み、この導電フィルム３０のうち相対的薄い部分３０Ａに存在する導電粒子３１と電極層２６との間で絶縁破壊が生じ、外部電極４６と電極層２６とはその導電粒子３１を介して相互に電気的に導通可能となる。このように、導電フィルム３０の相対的に薄い部分３０Ａを介して電極層２６と外部電極４６とを電気的に導通させることで、その電気的な導通を比較的簡単且つ確実に実現することができる。   The external electrode 46 is electrically conducted to the electrode layer 26 via the relatively thin portion 30A of the conductive film 30. When the external electrode body 12 is attached to the electrode connection portion 41 via the conductive film 30, it is compared with a portion (see code “30B” in FIGS. 6A and 6B) of the conductive film 30 where the external electrode 46 is not provided. The portion corresponding to the external electrode 46 (see reference numeral 30A in FIGS. 6A and 6B) is more strongly pressed toward the alignment layer 28. As a result, conductive particles 31 included in a portion of conductive film 30 corresponding to external electrode 46 (see symbol “30A” in FIGS. 6A and 6B) bite into alignment layer 28 and relatively thin of conductive film 30. A dielectric breakdown occurs between the conductive particles 31 present in the portion 30A and the electrode layer 26, and the external electrode 46 and the electrode layer 26 can be electrically conducted to each other via the conductive particles 31. Thus, by electrically conducting the electrode layer 26 and the external electrode 46 through the relatively thin portion 30A of the conductive film 30, it is possible to realize the electrical continuity relatively easily and reliably. it can.

また図６Ａ及び図６Ｂに示す電極接続部４１には、配向層２８において複数のスペーサ６０が存在してもよい。これらのスペーサ６０は、配向層２８から導電フィルム３０側に向かって突出し、導電フィルム３０に食い込むように設けられていてもよく、層構造を有する配向層２８及び導電フィルム３０の両者にわたって存在するように設けられていてもよい。このように、導電フィルム３０を介して外部電極体１２を配向層２８及び電極層２６に対して接着した際に、配向層２８により支持されているスペーサ６０が導電フィルム３０に食い込むように配置されることで、また配向層２８により支持されているスペーサ６０が層構造を有する配向層２８及び導電フィルム３０の両者にわたって存在するように設けられることで、配向層２８及び電極層２６に対する導電フィルム３０及び外部電極体１２（特に導電フィルム３０）の密着性を向上させることができる。これにより、例えば、配向層２８及び電極層２６に対する導電フィルム３０及び外部電極体１２の位置ズレを防ぐことができ、また導電フィルム３０及び外部電極体１２の意図しない剥離を効果的に抑制することができる。   In the electrode connection portion 41 shown in FIGS. 6A and 6B, a plurality of spacers 60 may be present in the alignment layer 28. These spacers 60 may protrude from the alignment layer 28 toward the conductive film 30 and may be provided so as to cut into the conductive film 30, and exist over both the alignment layer 28 having a layer structure and the conductive film 30. May be provided. Thus, when the external electrode body 12 is adhered to the alignment layer 28 and the electrode layer 26 through the conductive film 30, the spacer 60 supported by the alignment layer 28 is arranged to bite into the conductive film 30. Thus, the conductive film 30 for the alignment layer 28 and the electrode layer 26 can be provided by providing the spacer 60 supported by the alignment layer 28 over both the alignment layer 28 having a layer structure and the conductive film 30. And the adhesiveness of the external electrode body 12 (especially electrically conductive film 30) can be improved. Thereby, for example, positional deviation of the conductive film 30 and the external electrode body 12 with respect to the alignment layer 28 and the electrode layer 26 can be prevented, and unintended peeling of the conductive film 30 and the external electrode body 12 is effectively suppressed. Can.

なお電極接続部４１に配置されるスペーサ６０は、液晶調光部２０（図１参照）の液晶層２９（図２参照）において所望の厚み（すなわちセルギャップ）を確保するために液晶層２９中に配置されるスペーサと同じものにすることができる。通常、そのようなスペーサのサイズは導電粒子３１のサイズよりも十分に小さく、例えば図６Ａ及び図６Ｂに示すビーズ状のスペーサ６０の径は導電粒子の径の数分の１〜数十分の1程度としうる。また単位面積当たりの数についても、スペーサ６０の数は導電粒子３１の数の数分の１〜数十分の１程度としうる。このようなスペーサ６０が電極層２６と外部電極体１２（特に外部電極４６）との間に存在していても、スペーサ６０は電極層２６と外部電極体１２との間の導電性や密着性に対して実質的に悪影響を及ぼさない。むしろ上述のように、電極層２６と外部電極体１２との間に設けられるスペーサ６０は、電極層２６と外部電極体１２との間の密着性に関して良い影響を及ぼす。   The spacer 60 disposed in the electrode connection portion 41 is in the liquid crystal layer 29 in order to secure a desired thickness (ie, cell gap) in the liquid crystal layer 29 (see FIG. 2) of the liquid crystal light control unit 20 (see FIG. 1). It can be the same as the spacer placed on. Usually, the size of such a spacer is sufficiently smaller than the size of the conductive particle 31, for example, the diameter of the bead-like spacer 60 shown in FIGS. 6A and 6B is 1 to several tenths of the diameter of the conductive particle. It may be about one. In addition, the number of spacers 60 may be set to about one-several-one-several-one-several-ones of the number of the conductive particles 31 also in the number per unit area. Even if such a spacer 60 exists between the electrode layer 26 and the external electrode body 12 (particularly, the external electrode 46), the spacer 60 has conductivity and adhesion between the electrode layer 26 and the external electrode body 12 Not substantially adversely affect Rather, as described above, the spacer 60 provided between the electrode layer 26 and the external electrode body 12 has a positive effect on the adhesion between the electrode layer 26 and the external electrode body 12.

なお電極接続部４１に配置されるスペーサ６０は、液晶調光部２０の液晶層２９に配置されるスペーサと異なるものとしてもよい。またスペーサ６０の形状及び配置は限定されない。例えば、導電フィルム３０及び外部電極体１２の位置ズレや剥離を抑制する観点からは、各スペーサ６０の全体を配向層２８の構成材料により被覆して配向層２８に対する各スペーサ６０の固着性を向上させることが好ましいが（図６Ａ参照）、各スペーサ６０の一部が配向層２８の構成材料により被覆されていなくてもよい（図６Ｂ参照）。各スペーサ６０の一部が配向層２８の構成材料により被覆されていなくても、各スペーサ６０の一部が配向層２８と導電フィルムの両方にわたって存在するように設けられていれば、配向層２８に対する導電フィルム３０の密着性を向上させることができるという効果を得ることができる。各スペーサ６０の全体を２８の構成材料により被覆する場合には、例えば配向層２８を形成する材料に多数のスペーサ６０を予め混合しておき、この材料（塗工液）を電極層２６上に塗工した後に、この塗工液の溶剤を乾燥炉等にて揮発させてもよい。このような多数のスペーサ６０を含む塗工液の溶剤を揮発させると、塗工液の水位（液位）が減少するが、スペーサ６０と接触している部分の塗工液の水位（液位）は、他の部分に比べて減少しない。したがって、スペーサ６０の周囲では配向層２８が部分的に導電フィルム３０側に突出した形で固まって凸部が形成され、この凸部により各スペーサ６０が保持される。   The spacer 60 disposed in the electrode connection portion 41 may be different from the spacer disposed in the liquid crystal layer 29 of the liquid crystal light control unit 20. Also, the shape and arrangement of the spacer 60 are not limited. For example, from the viewpoint of suppressing positional deviation and peeling of the conductive film 30 and the external electrode body 12, the whole of each spacer 60 is covered with the constituent material of the alignment layer 28 to improve the adhesion of each spacer 60 to the alignment layer 28 (See FIG. 6A), a portion of each spacer 60 may not be covered with the constituent material of the alignment layer 28 (see FIG. 6B). Even if a part of each spacer 60 is not covered by the constituent material of the alignment layer 28, if a part of each spacer 60 is provided so as to be present over both the alignment layer 28 and the conductive film, the alignment layer 28 The effect of being able to improve the adhesion of the conductive film 30 to the above can be obtained. When the whole of each spacer 60 is covered with 28 constituent materials, for example, the material for forming the alignment layer 28 is mixed beforehand with a large number of spacers 60, and this material (coating liquid) is applied onto the electrode layer 26. After coating, the solvent of the coating liquid may be volatilized in a drying furnace or the like. When the solvent of the coating liquid containing such a large number of spacers 60 is volatilized, the water level (liquid level) of the coating liquid decreases, but the water level of the coating liquid in the portion in contact with the spacer 60 (liquid level ) Does not decrease compared to other parts. Therefore, around the spacers 60, the alignment layer 28 is partially solidified toward the conductive film 30 to form a convex portion, and the convex portions hold the spacers 60.

また図６Ａ及び図６Ｂに示す各スペーサ６０は球形状を有するが、各スペーサ６０は、球形状以外の形状を有していてもよく、例えば柱形状を有していてもよい。また図６Ａ及び図６Ｂに示す各スペーサ６０は配向層２８を貫通していないが、各スペーサ６０は、配向層２８を貫通するように電極層２６から導電フィルム３０に向かって延在してもよい。各スペーサ６０を設ける方法も限定されず、例えば電極層２６上に配向層２８を付与した後に配向層２８上にスペーサ６０を付与してもよいし、配向層２８を構成する材料に予めスペーサ６０が混ぜておき、その材料を電極層２６上に付与して配向層２８を形成してもよいし、フォトリソグラフィ等の技術により電極層２６上に柱状のスペーサ６０を予め形成しておき、柱状のスペーサ６０が形成された状態で電極層２６上に配向層２８を付与してもよい。   Although each spacer 60 shown in Drawing 6A and Drawing 6B has spherical shape, each spacer 60 may have shapes other than spherical shape, for example, may have pillar shape. Although each spacer 60 shown in FIGS. 6A and 6B does not penetrate through the alignment layer 28, each spacer 60 may extend from the electrode layer 26 toward the conductive film 30 so as to penetrate the alignment layer 28. Good. The method of providing each spacer 60 is also not limited. For example, the spacer 60 may be applied on the alignment layer 28 after applying the alignment layer 28 on the electrode layer 26, or the spacer 60 may be formed in advance as a material constituting the alignment layer 28. May be mixed, and the material may be applied onto the electrode layer 26 to form the alignment layer 28. Alternatively, the columnar spacer 60 may be formed in advance on the electrode layer 26 by a technique such as photolithography. The alignment layer 28 may be provided on the electrode layer 26 in the state where the spacer 60 is formed.

また図６Ａ及び図６Ｂに示す電極接続部４１では、外部電極４６の断面形状が、配向層２８に向かって先細るテーパー形状（すなわち順テーパー形状）を有する。このように順テーパー形状を有する外部電極４６によれば、外部電極体１２を電極層２６に対して圧着接続する際に、導電フィルム３０の材料が外部電極４６の側面に沿って流れ易いため、電極接続部４１の形成が容易である。また外部電極４６が順テーパー形状を有することによって、導電フィルム３０を介して外部電極体１２を配向層２８及び電極層２６に対して貼り合わせることで生じうる、外部電極体１２と導電フィルム３０との間における気泡の混入及びそのような気泡の残存を、効果的に防ぐことができる。外部電極体１２と導電フィルム３０との間に存在する気泡は、導電フィルム３０から外部電極体１２が意図せずに剥離する要因になり、また予期しない他の不具合の要因となりうる。そのため、導電フィルム３０を介して外部電極体１２を配向層２８及び電極層２６に確実且つ信頼性良く貼り合わせる観点からは、図６Ａ及び図６Ｂに示すように外部電極４６が順テーパー形状を有することが好ましい。   Further, in the electrode connection portion 41 shown in FIGS. 6A and 6B, the cross-sectional shape of the external electrode 46 has a tapered shape (i.e., a forward tapered shape) that tapers toward the alignment layer 28. As described above, according to the external electrode 46 having a forward tapered shape, when the external electrode body 12 is pressure-bonded to the electrode layer 26, the material of the conductive film 30 easily flows along the side surface of the external electrode 46, The formation of the electrode connection portion 41 is easy. Further, when the external electrode 46 has a forward tapered shape, the external electrode body 12 and the conductive film 30 can be generated by bonding the external electrode body 12 to the alignment layer 28 and the electrode layer 26 via the conductive film 30. And the retention of such bubbles can be effectively prevented. Air bubbles present between the external electrode body 12 and the conductive film 30 cause unintended peeling of the external electrode body 12 from the conductive film 30, and may cause other unexpected problems. Therefore, from the viewpoint of bonding the external electrode body 12 to the alignment layer 28 and the electrode layer 26 reliably and reliably via the conductive film 30, the external electrode 46 has a forward tapered shape as shown in FIGS. 6A and 6B. Is preferred.

なお、外部電極４６の順テーパー形状の具体的な形状は特に限定されず、例えば外部電極４６のテーパー部分は直線的に傾斜していてもよいし、曲線的に傾斜していてもよい。また外部電極４６のある方向（例えば図１の横方向）に関する断面が上述のような順テーパー形状を有していればよい。   The specific shape of the forward tapered shape of the external electrode 46 is not particularly limited. For example, the tapered portion of the external electrode 46 may be linearly inclined or may be curvilinearly inclined. Also, the cross section in a certain direction (for example, the lateral direction in FIG. 1) of the external electrode 46 may have the above-described forward tapered shape.

また図６Ａ及び図６Ｂに示す電極接続部４１では、外部電極４６が貼り付けられていない箇所における外部支持部４７と電極層２６との間の間隔ＤＢは、外部電極４６が貼り付けられている箇所における外部支持部４７と電極層２６との間の間隔ＤＡよりも小さい（すなわちＤＡ＞ＤＢ）。上述のように、外部電極４６を介して導電フィルム３０とは反対側には、外部電極４６を支持する外部支持部４７が設けられている。外部電極４６が設けられていない箇所においては、電極層２６に対する電気的な導通を確保する必要がないため、外部支持部４７と電極層２６との間の間隔を狭くすることができる。このように外部支持部４７と電極層２６と間隔を狭くすることによって、導電フィルム３０を介した外部支持部４７と電極層２６（及び配向層２８）との間の密着性を向上させることができる。   Further, in the electrode connection portion 41 shown in FIGS. 6A and 6B, the external electrode 46 is attached to the space DB between the external support portion 47 and the electrode layer 26 in the portion where the external electrode 46 is not attached. It is smaller than the distance DA between the external support 47 and the electrode layer 26 at the location (ie, DA> DB). As described above, on the side opposite to the conductive film 30 via the external electrode 46, the external support portion 47 that supports the external electrode 46 is provided. At places where the external electrode 46 is not provided, it is not necessary to ensure electrical conduction to the electrode layer 26, so the distance between the external support portion 47 and the electrode layer 26 can be narrowed. By thus narrowing the distance between the external support portion 47 and the electrode layer 26, the adhesion between the external support portion 47 and the electrode layer 26 (and the alignment layer 28) via the conductive film 30 can be improved. it can.

なお、上述の各実施形態に係る調光セル１０の製造方法は、典型的には、以下のステップを含む。すなわち、電極接続部４１において、順次積層された配向層２８、電極層２６及び基材層２４を有する積層体であって、配向層２８上に導電フィルム３０が形成された積層体が準備される。配向層２８上に導電フィルム３０を形成する手法は特に限定されず、塗布等によって配向層２８上の所望箇所に導電フィルム３０を形成することが可能である。また予め準備された導電フィルム３０を配向層２８に対して圧着してもよい。なお、配向層２８上に形成された導電フィルム３０は、上述のように流動性を有していてもよいし、有していなくてもよい。ただし、導電フィルム３０が配向層２８に向かって押圧されることで、導電フィルム３０の構成要素の一部（上述の実施形態では導電粒子３１）を配向層２８に食い込ませることができる程度の圧縮性（特に積層方向の圧縮性）を導電フィルム３０は有する。   In addition, the manufacturing method of the light control cell 10 which concerns on the above-mentioned each embodiment typically includes the following steps. That is, in the electrode connection portion 41, a laminate having the alignment layer 28, the electrode layer 26, and the base material layer 24 sequentially stacked, in which the conductive film 30 is formed on the alignment layer 28, is prepared. . The method for forming the conductive film 30 on the alignment layer 28 is not particularly limited, and the conductive film 30 can be formed at a desired location on the alignment layer 28 by coating or the like. Alternatively, the conductive film 30 prepared in advance may be pressure-bonded to the alignment layer 28. The conductive film 30 formed on the alignment layer 28 may or may not have fluidity as described above. However, as the conductive film 30 is pressed toward the alignment layer 28, compression to such an extent that some of the components of the conductive film 30 (the conductive particles 31 in the above embodiment) can bite into the alignment layer 28. The conductive film 30 has the properties (in particular, the compressibility in the laminating direction).

そして、外部電極４６を導電フィルム３０に圧着する。具体的には、外部電極４６及び外部支持部４７と配向層２８とによって導電フィルム３０を挟むように、外部電極４６及び外部支持部４７を導電フィルム３０上に配置し、外部電極４６及び外部支持部４７を導電フィルム３０に向かって押圧する。これにより、電極接続部４１において、導電フィルム３０と電極層２６との間の少なくとも一部領域において配向層２８が配置された状態で、導電フィルム３０及び電極層２６を相互に電気的に導通させるとともに、導電フィルム３０及び外部電極４６を相互に電気的に導通させる。なお圧着方式は特に限定されず、加熱、冷却、紫外線照射或いは電子線照射等の各種処理が、圧着のための加圧とともに行われてもよい。   Then, the external electrode 46 is crimped to the conductive film 30. Specifically, the external electrode 46 and the external support portion 47 are disposed on the conductive film 30 so that the conductive film 30 is sandwiched between the external electrode 46 and the external support portion 47 and the alignment layer 28, and the external electrode 46 and the external support The portion 47 is pressed toward the conductive film 30. Thereby, in the electrode connection portion 41, the conductive film 30 and the electrode layer 26 are electrically conducted to each other in a state in which the alignment layer 28 is disposed in at least a partial region between the conductive film 30 and the electrode layer 26. At the same time, the conductive film 30 and the outer electrode 46 are electrically conducted to each other. The pressure bonding method is not particularly limited, and various treatments such as heating, cooling, ultraviolet irradiation, or electron beam irradiation may be performed together with pressurization for pressure bonding.

上述のように、導電フィルム３０は、配向層２８上から圧着された際に電極層２６との間で適切な導電性を構築することが要求されるとともに、外部電極４６及び配向層２８に対する適切な密着性（すなわち接着力）が要求される。本実施形態の導電フィルム３０は、これらの導電性及び密着性を満たすことができる組成及び構成を有する。   As described above, the conductive film 30 is required to establish appropriate conductivity with the electrode layer 26 when pressed from above the alignment layer 28, and is suitable for the external electrode 46 and the alignment layer 28. Adhesion (ie, adhesion) is required. The conductive film 30 of the present embodiment has a composition and a configuration that can satisfy the conductivity and the adhesion.

具体的には、電極接続部４１において、導電フィルム３０、配向層２８及び電極層２６によって構成される積層部の少なくとも一部は、１５０Ω・ｍ以下の比抵抗を示す。また配向層２８に対する外部電極４６の引き剥がし力は、ＪＩＳ Ｚ ０２３７：２００９に準拠した測定条件（引張速度：３００ｍｍ／分；剥離距離：１５０ｍｍ；剥離角度：１８０度）によって測定した場合に１Ｎ／１０ｍｍ以上である。   Specifically, in the electrode connection portion 41, at least a part of the laminated portion configured by the conductive film 30, the alignment layer 28, and the electrode layer 26 exhibits a specific resistance of 150 Ω · m or less. The peeling force of the external electrode 46 to the alignment layer 28 is 1 N / m when measured under the measurement conditions (tensile speed: 300 mm / min; peeling distance: 150 mm; peeling angle: 180 degrees) in accordance with JIS Z 0237: 2009. It is 10 mm or more.

以下、導電フィルム３０の導電性（抵抗）及び密着性（引き剥がし力）について考察する。   Hereinafter, the conductivity (resistance) and the adhesion (peeling force) of the conductive film 30 will be considered.

［導電性］
本件発明者は、ＦＰＣとして構成される外部電極体１２（すなわち外部電極４６及び外部支持部４７）と、基材層２４、電極層２６及び配向層２８を含む積層体（すなわち電極接続部４１）と、を準備した。基材層２４は樹脂製であり、電極層２６はＩＴＯ（Ｉｎｄｉｕｍ Ｔｉｎ Ｏｘｉｄｅ：酸化インジウムスズ）によって作られ、膜厚が０．０５μｍであり、表面抵抗が１５０Ω/□（ｏｈｍｓ ｐｅｒ ｓｑｕａｒｅ）であった。配向層２８はポリイミドによって作られ、また配向層２８の膜厚は０．１μｍ（マイクロメートル）であった。 [Conductivity]
The inventor of the present invention is a laminate including an external electrode body 12 (that is, the external electrode 46 and the external support portion 47) configured as an FPC, a base material layer 24, an electrode layer 26, and an alignment layer 28 (that is, an electrode connection portion 41). And prepared. The base layer 24 is made of resin, the electrode layer 26 is made of ITO (Indium Tin Oxide: indium tin oxide), the film thickness is 0.05 μm, and the surface resistance is 150 Ω / □ (ohms per square). The The alignment layer 28 was made of polyimide, and the thickness of the alignment layer 28 was 0.1 μm (micrometer).

そして、デクセリアルズ株式会社製の導電フィルム３０（製品名：ＣＰ９２３ＣＭ−２５）を外部電極４６と配向層２８との間に配置して、これらを相互に圧着した（図３Ａ及び図３Ｂ参照）。なお圧着前は、導電フィルム３０の膜厚が２５μｍであり、配向層２８の膜厚が０．１μｍであった。一方、圧着後は、導電フィルム３０の膜厚が１８μｍであり、導電粒子３１が配向層２８に食い込み、配向層２８を介した導電粒子３１の下部と電極層２６との間の距離が０．０５μｍであった。   Then, a conductive film 30 (product name: CP923CM-25) manufactured by Dexerials Inc. was disposed between the external electrode 46 and the alignment layer 28, and these were crimped to each other (see FIGS. 3A and 3B). Before the pressure bonding, the film thickness of the conductive film 30 was 25 μm, and the film thickness of the alignment layer 28 was 0.1 μm. On the other hand, after pressure bonding, the film thickness of the conductive film 30 is 18 μm, the conductive particles 31 bite into the alignment layer 28, and the distance between the lower portion of the conductive particles 31 and the electrode layer 26 via the alignment layer 28 is 0. It was 05 μm.

このようにして得られた圧着積層体において、導電フィルム３０、配向層２８及び電極層２６によって構成される積層部の抵抗を測定したところ、１５０Ω・ｍ以下の比抵抗を示した。なお抵抗の測定には「三菱化学アナリテック製 ロレスタ−ＧＸ ＭＣＰ−Ｔ７００」を用いた。   When the resistance of the laminated portion constituted of the conductive film 30, the alignment layer 28 and the electrode layer 26 was measured in the pressure-bonded laminated body obtained in this manner, it showed a specific resistance of 150 Ω · m or less. In addition, “Mitsubishi Chemical Analytech Loresta-GX MCP-T700” was used to measure the resistance.

上述の考察からも、本実施形態の調光セル１０において導電フィルム３０を用いることで、外部電極４６と配向層２８との間で十分な電気的な導通性を実現することができることが分かる。   Also from the above-mentioned consideration, it can be seen that sufficient electrical conductivity can be realized between the external electrode 46 and the alignment layer 28 by using the conductive film 30 in the light control cell 10 of the present embodiment.

［密着性］
本件発明者は、上述の導電性の検証に用いた圧着積層体と同じ条件下で、別の圧着積層体（すなわち基材層２４、電極層２６、配向層２８、導電フィルム３０、外部電極４６及び外部支持部４７を有する積層体）を準備した。この圧着積層体は、２５ｍｍ（縦）×１５０ｍｍ（横）のサイズを有していた。 [Adhesiveness]
The inventors of the present invention described another pressure-bonded laminate (that is, the base material layer 24, the electrode layer 26, the alignment layer 28, the conductive film 30, and the external electrode 46) under the same conditions as the pressure-bonded laminate used for the conductivity verification described above. And a laminate having an outer support 47 was prepared. The crimped laminate had a size of 25 mm (longitudinal) x 150 mm (lateral).

常温常圧（約２３℃、約６０％ＲＨ）環境下において、引張試験機（型番：ＲＴＦ−１１５０Ｈ；株式会社エー・アンド・デイ社製）を用いて引張速度：３００ｍｍ／分、剥離距離：１５０ｍｍ、及び剥離角度：１８０度の測定条件により、外部電極体１２（すなわち外部電極４６及び外部支持部４７）を他の構成要素から剥離するのに要した力（剥離力）を測定した。具体的には、上記引張試験機において、力をかけて移動する直線上に配置された２個のチャックにより圧着積層体を把持し、引張速度を３００ｍｍ／分とし、剥離距離を１５０ｍｍとし、剥離角度を１８０度として、互いに離れる方向にチャックを移動させて、外部電極体１２（すなわち外部電極４６及び外部支持部４７）を他の構成要素から剥離させた。この際に、圧着積層体に作用する荷重を測定し、以下の式に基づいて、剥離に要した力（引張強さ）を算出した。
Ｔ＝１０×Ｐ／Ｗ
（ただし「Ｔ」は引張強さ（Ｎ／１０ｍｍ）を示し、「Ｐ」は最大荷重（Ｎ）を示し、「Ｗ」は試験片（すなわち圧着積層体）の幅（ｍｍ）を示す。）
上述の条件下で複数回の測定を行ったところ、いずれの測定においても、配向層２８に対する外部電極体１２（すなわち外部電極４６及び外部支持部４７）の引張強さ（引き剥がし力）として１Ｎ／１０ｍｍ以上の力を要した。 Under normal temperature and normal pressure (about 23 ° C., about 60% RH) environment, using a tensile tester (model number: RTF-1150H; manufactured by A & D Co., Ltd.), tensile speed: 300 mm / min, peeling distance: The force (peel force) required to peel the external electrode body 12 (that is, the outer electrode 46 and the outer support portion 47) from the other components was measured under the measurement conditions of 150 mm and peeling angle: 180 degrees. Specifically, in the above-mentioned tensile tester, the pressure-bonded laminated body is gripped by two chucks disposed on a straight line moving with force, the tensile speed is 300 mm / min, and the peeling distance is 150 mm. The chuck was moved in a direction away from each other at an angle of 180 degrees to peel the outer electrode body 12 (i.e., the outer electrode 46 and the outer support portion 47) from the other components. At this time, the load acting on the pressure-bonded laminate was measured, and the force (tensile strength) required for the peeling was calculated based on the following equation.
T = 10 × P / W
(However, “T” indicates tensile strength (N / 10 mm), “P” indicates maximum load (N), and “W” indicates the width (mm) of a test piece (that is, a pressure-bonded laminate).)
When a plurality of measurements were performed under the conditions described above, in any of the measurements, the tensile strength (peeling force) of the external electrode body 12 (that is, the external electrode 46 and the external support portion 47) with respect to the alignment layer 28 is 1N. It required a force of at least 10 mm.

上述の考察からも、本実施形態の調光セル１０において、導電フィルム３０が、外部電極４６及び配向層２８に対する適切な密着性（すなわち接着力）を実現することができることが分かる。   Also from the above-mentioned consideration, it can be seen that the conductive film 30 can realize appropriate adhesion (that is, adhesion) to the external electrode 46 and the alignment layer 28 in the light control cell 10 of the present embodiment.

以上説明したように上述の実施形態に係る調光セル１０によれば、絶縁性を有する配向層２８が用いられていても、導電フィルム３０によって、配向層２８を取り除くことなく、外部電極４６と電極層２６との間で適切な電気的導通を確保することができる。   As described above, according to the light control cell 10 according to the above-described embodiment, even when the alignment layer 28 having the insulating property is used, the conductive film 30 does not remove the alignment layer 28, and Proper electrical conduction can be ensured between the electrode layer 26 and the electrode layer 26.

特に、複数の導電粒子３１を含む導電フィルム３０を用いることによって、ＦＰＣ等の外部電極体１２（特に外部電極４６）を導電フィルム３０及び配向層２８の上から電極層２６に向かって押圧するだけで、導電粒子３１を配向層２８に食い込ませて、外部電極４６と電極層２６とを相互に電気的に導通させることができる。   In particular, by using the conductive film 30 including the plurality of conductive particles 31, only the external electrode body 12 (especially the external electrode 46) such as FPC is pressed from above the conductive film 30 and the alignment layer 28 toward the electrode layer 26. Then, the conductive particles 31 can be made to bite into the alignment layer 28 to electrically conduct the external electrode 46 and the electrode layer 26 to each other.

また、外部電極４６と電極層２６との間の電気的な導通を確保するために配向層２８を取り除く必要がないため、配向層２８を除去する際に基材層２４に加えられうるダメージを、本実施形態の調光セル１０では考慮する必要がない。そのため、液晶調光部２０及び電極接続部４１の各々が有する基材層２４を樹脂によって構成する場合には、基材層２４の損傷を防ぎつつ、樹脂の有する軽量性、変形可能性及び安全性等の特性を享受することができる。   In addition, since it is not necessary to remove the alignment layer 28 in order to ensure electrical continuity between the external electrode 46 and the electrode layer 26, damage that may be applied to the base layer 24 when removing the alignment layer 28 is In the light control cell 10 of the present embodiment, it is not necessary to consider. Therefore, when the substrate layer 24 included in each of the liquid crystal light control unit 20 and the electrode connection unit 41 is made of resin, the lightness, deformability, and safety of the resin can be prevented while preventing damage to the substrate layer 24. It is possible to enjoy characteristics such as gender.

本発明は、上述の実施形態及び変形例に限定されるものではなく、当業者が想到しうる種々の変形が加えられた各種態様も含みうるものであり、本発明によって奏される効果も上述の事項に限定されない。したがって、本発明の技術的思想及び趣旨を逸脱しない範囲で、特許請求の範囲及び明細書に記載される各要素に対して種々の追加、変更及び部分的削除が可能である。   The present invention is not limited to the above-described embodiments and modifications, but may include various embodiments to which various modifications that can be conceived by those skilled in the art are added, and the effects exhibited by the present invention are also described above. It is not limited to the matter of. Therefore, various additions, modifications, and partial deletions can be made to the elements described in the claims and the specification without departing from the technical concept and spirit of the present invention.

例えば、導電フィルム３０を使用した上述の技術は、液晶層２９の両側に設けられる配向層及び電極層の積層体の各々に対して適用可能である。したがって、液晶層２９の一方側に配置される電極層２６に対し導電フィルム３０を介して外部電極体１２を電気的に接続させつつ、液晶層２９の他方側に配置される電極層２５に対して他の導電フィルム３０を介して他の外部電極体１２を電気的に接続させることも可能である。また、導電フィルム３０を使用した上述の技術は、液晶層２９の一方側にのみ設けられる配向層及び電極層の積層体に対しても適用可能である。   For example, the above-described technique using the conductive film 30 is applicable to each of the laminate of the alignment layer and the electrode layer provided on both sides of the liquid crystal layer 29. Therefore, with respect to the electrode layer 25 disposed on the other side of the liquid crystal layer 29, the external electrode body 12 is electrically connected to the electrode layer 26 disposed on one side of the liquid crystal layer 29 via the conductive film 30. It is also possible to electrically connect the other external electrode body 12 through the other conductive film 30. Further, the above-described technique using the conductive film 30 is also applicable to a laminate of an alignment layer and an electrode layer provided only on one side of the liquid crystal layer 29.

また、本発明に係る調光セル１０の適用分野も特に限定されず、様々な技術分野に対して上述の調光セル１０に関する技術を応用することが可能である。例えば、太陽光の透過及び遮光を調整するサンシェード装置、各種の情報を必要に応じて表示可能な発光パネル、及び光の透過率の変更を要するその他の装置に対し、本発明に係る調光セル１０を応用することが可能である。典型的には窓及びドア等に対して調光セル１０を適用することができる。具体的には、建築物等の非移動体の窓やドア等に対してだけではなく、飛行機、船、電車及び自動車等の移動体の窓やドア等に対しても調光セル１０を適用することができる。図７には、移動体１の一例として自動車が示されており、自動車のサンルーフに調光セル１０が適用されている。このような窓やドア等への適用において、調光セル１０は、ガラス等の透明部材に貼合され、或いは、図８に示されているように、一対のガラス等の透明部材１１の間に挟持されて、用いられる。すなわち、移動体１は、透明部材１１と、透明部材１１に積層されて透明部材１１により支持される調光セル１０と、を有する調光体５を、窓やドア等として備えることができる。   Further, the application field of the light control cell 10 according to the present invention is not particularly limited, and it is possible to apply the technology relating to the light control cell 10 to various technical fields. For example, a light control cell according to the present invention to a sunshade device that adjusts transmission and shading of sunlight, a light emitting panel capable of displaying various information as needed, and other devices that require a change in light transmittance. It is possible to apply ten. Typically, the light control cell 10 can be applied to windows, doors and the like. Specifically, the light control cell 10 is applied not only to windows and doors of non-moving objects such as buildings but also to windows and doors of moving objects such as airplanes, ships, trains and automobiles. can do. In FIG. 7, a car is shown as an example of the moving body 1, and the dimmer cell 10 is applied to a sunroof of the car. In the application to such a window, a door, etc., the light control cell 10 is bonded to a transparent member such as glass, or, as shown in FIG. 8, between the pair of transparent members 11 such as glass It is held between and used. That is, the movable body 1 can include the light control body 5 including the transparent member 11 and the light control cell 10 stacked on the transparent member 11 and supported by the transparent member 11 as a window, a door, or the like.

１ 移動体
５ 調光体
１１ 透明部材
１０ 調光セル
１２ 外部電極体
２０ 液晶調光部
２１ 偏光板
２２ 偏光板
２３ 基材層
２４ 基材層
２５ 電極層
２６ 電極層
２７ 配向層
２８ 配向層
２９ 液晶層
３０ 導電フィルム
３１ 導電粒子
４０ 外周部
４１ 電極接続部
４２ 配向層
４３ 電極層
４４ 基材層
４６ 外部電極
４７ 外部支持部
５０ 導電体
６０ スペーサ DESCRIPTION OF SYMBOLS 1 mobile body 5 light control body 11 transparent member 10 light control cell 12 external electrode body 20 liquid crystal light control unit 21 polarizing plate 22 polarizing plate 23 base material layer 24 base material layer 25 electrode layer 26 electrode layer 27 alignment layer 28 alignment layer 29 Liquid crystal layer 30 Conductive film 31 Conductive particles 40 Outer peripheral portion 41 Electrode connection portion 42 Alignment layer 43 Electrode layer 44 Base layer 46 External electrode 47 External support portion 50 Conductor 60 Spacer

Claims (14)

光の透過率が可変である液晶調光部と、外部電極を接続するための電極接続部と、を備える調光セルであって、
前記液晶調光部は、液晶層、配向層及び電極層を有し、
前記電極接続部は、導電フィルム、前記配向層及び前記電極層を有し、
前記電極接続部において、前記導電フィルムと前記電極層との間には少なくとも一部において前記配向層が配置され、
前記導電フィルムの一部は、前記導電フィルムと前記電極層との間に配置される前記配向層に食い込んで配置され、前記導電フィルム及び前記電極層が相互に電気的に導通される調光セル。 A light control cell comprising: a liquid crystal light control unit having variable light transmittance; and an electrode connection unit for connecting an external electrode,
The liquid crystal light control unit includes a liquid crystal layer, an alignment layer, and an electrode layer.
The electrode connection portion includes a conductive film, the alignment layer, and the electrode layer.
In the electrode connection portion, the alignment layer is disposed at least in part between the conductive film and the electrode layer,
A part of the conductive film bites into the alignment layer disposed between the conductive film and the electrode layer, and the light control cell in which the conductive film and the electrode layer are electrically conducted to each other . 前記導電フィルム及び前記電極層の両者によって覆われる範囲の全体にわたって前記配向層が配置されている請求項１に記載の調光セル。   The light control cell according to claim 1, wherein the alignment layer is disposed over the entire range covered by both the conductive film and the electrode layer. 前記導電フィルムは、複数の導電粒子を含み、
前記複数の導電粒子の少なくとも一部が、前記導電フィルムと前記電極層との間に配置される前記配向層に食い込んでいる請求項１又は２に記載の調光セル。 The conductive film includes a plurality of conductive particles,
The light control cell according to claim 1, wherein at least a part of the plurality of conductive particles bites into the alignment layer disposed between the conductive film and the electrode layer. 前記複数の導電粒子の少なくとも一部は、前記導電フィルムと前記電極層との間に配置される前記配向層の厚みよりも大きな径を有する請求項３に記載の調光セル。   The light control cell according to claim 3, wherein at least a part of the plurality of conductive particles has a diameter larger than a thickness of the alignment layer disposed between the conductive film and the electrode layer. 前記複数の導電粒子の少なくとも一部は、前記導電フィルムと前記電極層との間に配置される前記配向層の厚み以下の径を有する請求項３又は４に記載の調光セル。   5. The light control cell according to claim 3, wherein at least a part of the plurality of conductive particles has a diameter equal to or less than the thickness of the alignment layer disposed between the conductive film and the electrode layer. 前記電極接続部において、前記導電フィルム、前記配向層及び前記電極層によって構成される積層部の少なくとも一部は、１５０Ω・ｍ以下の比抵抗を示す請求項１〜５のいずれか一項に記載の調光セル。   The said electrode connection part WHEREIN: At least one part of the laminated part comprised by the said conductive film, the said orientation layer, and the said electrode layer is 150 ohm * m or less, The specific resistance as described in any one of Claims 1-5 Light control cell. 前記導電フィルムの一方側に前記外部電極が貼り付けられ、前記導電フィルムの他方側に前記配向層が貼り付けられ、
前記配向層に対する前記外部電極の引き剥がし力は、引張速度を３００ｍｍ／分とし、剥離角度を１８０度として測定を行った場合に１Ｎ／１０ｍｍ以上である請求項１〜６のいずれか一項に記載の調光セル。 The external electrode is attached to one side of the conductive film, and the alignment layer is attached to the other side of the conductive film.
The peeling force of the external electrode with respect to the alignment layer is 1 N / 10 mm or more when measurement is performed with a tensile speed of 300 mm / min and a peeling angle of 180 degrees. Dimmable cell described. 前記液晶調光部及び前記電極接続部の各々は、前記電極層を支持する基材層を有し、
前記基材層は樹脂によって構成されている請求項１〜７のいずれか一項に記載の調光セル。 Each of the liquid crystal light control unit and the electrode connection unit has a base material layer supporting the electrode layer,
The light control cell according to any one of claims 1 to 7, wherein the base material layer is made of a resin. 前記導電フィルムの一方側に前記外部電極が貼り付けられ、前記導電フィルムの他方側に前記配向層及び前記電極層が貼り付けられ、
前記導電フィルムは、相対的に厚い部分と相対的に薄い部分とを有し、
前記外部電極は、前記導電フィルムのうち前記相対的に薄い部分を介し、前記電極層と電気的に導通される請求項１〜８のいずれか一項に記載の調光セル。 The external electrode is attached to one side of the conductive film, and the alignment layer and the electrode layer are attached to the other side of the conductive film.
The conductive film has a relatively thick portion and a relatively thin portion,
The light control cell according to any one of claims 1 to 8, wherein the external electrode is electrically conducted to the electrode layer through the relatively thin portion of the conductive film. 前記電極接続部において、少なくとも前記配向層において存在するスペーサを更に備え、
前記スペーサは、前記導電フィルムに食い込む請求項１〜９のいずれか一項に記載の調光セル。 The electrode connection portion further includes a spacer present in at least the alignment layer,
The light control cell according to any one of claims 1 to 9, wherein the spacer cuts into the conductive film. 前記導電フィルムの一方側に前記外部電極が貼り付けられ、前記導電フィルムの他方側に前記配向層及び前記電極層が貼り付けられ、
前記外部電極は、前記電極接続部の前記配向層に向かって先細るテーパー形状を有する請求項１〜１０のいずれか一項に記載の調光セル。 The external electrode is attached to one side of the conductive film, and the alignment layer and the electrode layer are attached to the other side of the conductive film.
The light control cell according to any one of claims 1 to 10, wherein the external electrode has a tapered shape which is tapered toward the alignment layer of the electrode connection portion. 前記導電フィルムの一方側に前記外部電極が貼り付けられ、前記導電フィルムの他方側に前記配向層及び前記電極層が貼り付けられ、
前記外部電極を介して前記導電フィルムとは反対側に、前記外部電極を支持する層状の外部支持部が設けられ、
前記電極接続部において、前記外部電極が貼り付けられていない箇所における前記外部支持部と前記電極層との間の間隔は、前記外部電極が貼り付けられている箇所における前記外部支持部と前記電極層との間の間隔よりも小さい請求項１〜１０のいずれか一項に記載の調光セル。 The external electrode is attached to one side of the conductive film, and the alignment layer and the electrode layer are attached to the other side of the conductive film.
On the side opposite to the conductive film via the external electrode, a layered external support portion for supporting the external electrode is provided.
In the electrode connection portion, the distance between the external support portion and the electrode layer in the portion where the external electrode is not attached is the external support portion and the electrode in the portion where the external electrode is attached. The light control cell according to any one of claims 1 to 10, which is smaller than the distance between the layers. 請求項１〜１２のいずれか一項に記載の調光セルと、
前記調光セルを支持する透明部材と、を備える調光体。 The light control cell according to any one of claims 1 to 12.
And a transparent member for supporting the light control cell. 請求項１３に記載の調光体を備える移動体。   A movable body comprising the light control body according to claim 13.
JP2018217471A 2017-01-24 2018-11-20 Dimming cell, dimming body and moving body Active JP7047724B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017010566 2017-01-24
JP2017010566 2017-01-24

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2018545245A Division JP6439907B1 (en) 2017-01-24 2018-01-24 Dimming cell, dimmer and moving body

Publications (2)

Publication Number Publication Date
JP2019061253A true JP2019061253A (en) 2019-04-18
JP7047724B2 JP7047724B2 (en) 2022-04-05

Family

ID=62978417

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2018545245A Active JP6439907B1 (en) 2017-01-24 2018-01-24 Dimming cell, dimmer and moving body
JP2018217471A Active JP7047724B2 (en) 2017-01-24 2018-11-20 Dimming cell, dimming body and moving body

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP2018545245A Active JP6439907B1 (en) 2017-01-24 2018-01-24 Dimming cell, dimmer and moving body

Country Status (2)

Country Link
JP (2) JP6439907B1 (en)
WO (1) WO2018139474A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113867012B (en) * 2021-08-30 2023-06-06 福耀玻璃工业集团股份有限公司 Light modulation piece, manufacturing method thereof, light transmission component and vehicle
CN117916652A (en) * 2021-07-01 2024-04-19 福耀玻璃工业集团股份有限公司 Light modulation piece, manufacturing method thereof, light transmission component and vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06273727A (en) * 1993-03-18 1994-09-30 Sumitomo Electric Ind Ltd Liquid crystal element and its production
JPH103089A (en) * 1996-06-14 1998-01-06 Sharp Corp Liquid crystal display element and its manufacture
KR20080020841A (en) * 2006-09-01 2008-03-06 엘지이노텍 주식회사 Apparatus and method for electrode connection of display panel
JP2008083365A (en) * 2006-09-27 2008-04-10 Citizen Miyota Co Ltd Liquid crystal display device
WO2008102476A1 (en) * 2007-02-22 2008-08-28 Sharp Kabushiki Kaisha Electronic circuit device, process for manufacturing the same and display apparatus
JP2010208861A (en) * 2007-07-03 2010-09-24 Asahi Glass Co Ltd Toning window material
JP2013182823A (en) * 2012-03-02 2013-09-12 Dexerials Corp Manufacturing method of connection body and anisotropic conductive adhesive

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9291866B2 (en) * 2014-03-28 2016-03-22 Himax Display, Inc. Liquid crystal display panel
JP6024844B1 (en) * 2016-03-31 2016-11-16 大日本印刷株式会社 Light control film, light control film laminate and vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06273727A (en) * 1993-03-18 1994-09-30 Sumitomo Electric Ind Ltd Liquid crystal element and its production
JPH103089A (en) * 1996-06-14 1998-01-06 Sharp Corp Liquid crystal display element and its manufacture
KR20080020841A (en) * 2006-09-01 2008-03-06 엘지이노텍 주식회사 Apparatus and method for electrode connection of display panel
JP2008083365A (en) * 2006-09-27 2008-04-10 Citizen Miyota Co Ltd Liquid crystal display device
WO2008102476A1 (en) * 2007-02-22 2008-08-28 Sharp Kabushiki Kaisha Electronic circuit device, process for manufacturing the same and display apparatus
JP2010208861A (en) * 2007-07-03 2010-09-24 Asahi Glass Co Ltd Toning window material
JP2013182823A (en) * 2012-03-02 2013-09-12 Dexerials Corp Manufacturing method of connection body and anisotropic conductive adhesive

Also Published As

Publication number Publication date
WO2018139474A1 (en) 2018-08-02
JP6439907B1 (en) 2018-12-19
JPWO2018139474A1 (en) 2019-02-07
JP7047724B2 (en) 2022-04-05

Similar Documents

Publication Publication Date Title
US8362488B2 (en) Flexible backplane and methods for its manufacture
JP5131279B2 (en) Circuit connection method, circuit connection structure, and method of manufacturing circuit connection structure
KR102101874B1 (en) Electro-Chromic element having transparent electrode with low resistance
US20130092426A1 (en) Anisotropic conductive film and fabrication method thereof
WO2004061640A1 (en) Narrow-frame touch panel
US10175544B2 (en) Connection body, method for manufacturing a connection body, connecting method and anisotropic conductive adhesive agent
JP7119305B2 (en) dimmer
JP6044108B2 (en) Display sheet, display sheet manufacturing method, display device, and electronic apparatus
US20160381801A1 (en) Connection body and connection body manufacturing method
JP7047724B2 (en) Dimming cell, dimming body and moving body
KR101372534B1 (en) Touch panel
JP2012123570A (en) Electrode sheet for capacitive touch panel, method for manufacturing the same, and capacitive touch panel
JP2009169229A (en) Electrochromic element and method of manufacturing the same
JP2022033786A (en) Connecting body and manufacturing method of the same
JPH08279388A (en) Connecting method of electric circuit
JP7151137B2 (en) dimming unit
JP2896458B2 (en) Flat panel display
JP2012185751A (en) Touch panel
CN214669959U (en) Prevent membrane of adjusting luminance of electric breakdown
US11360358B2 (en) Method for attaching electrode to liquid crystal element
KR20080087527A (en) Touch panel and manufacturing method thereof
JP2018120080A (en) Light control film and manufacturing method therefor
JP6123168B2 (en) Display sheet, display sheet manufacturing method, display device, and electronic apparatus
WO2019163872A1 (en) Light control film
JP2000259092A (en) Electro-optic device

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181121

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20201127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20211115

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20211203

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20220201

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220207

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220222

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220307

R150 Certificate of patent or registration of utility model

Ref document number: 7047724

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150