WO2010100807A1 - Liquid-crystal blind device and method of using same - Google Patents

Liquid-crystal blind device and method of using same Download PDF

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Publication number
WO2010100807A1
WO2010100807A1 PCT/JP2009/071452 JP2009071452W WO2010100807A1 WO 2010100807 A1 WO2010100807 A1 WO 2010100807A1 JP 2009071452 W JP2009071452 W JP 2009071452W WO 2010100807 A1 WO2010100807 A1 WO 2010100807A1
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WIPO (PCT)
Prior art keywords
liquid crystal
pair
blind device
transparent
light
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PCT/JP2009/071452
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French (fr)
Japanese (ja)
Inventor
潤一 馬場
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九州ナノテック光学株式会社
株式会社オックスプランニング
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Priority to JP2011502599A priority Critical patent/JPWO2010100807A1/en
Publication of WO2010100807A1 publication Critical patent/WO2010100807A1/en

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    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2464—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • Liquid crystal blind devices that are opaque when de-energized but turn transparent when a voltage is applied have been used for building windows.
  • the present invention relates to a liquid crystal blind device used as a window of a window glass or a partition, a window or roof of an automobile, a train, an aircraft or the like and a method of using the same.
  • the liquid crystal blind device When the liquid crystal blind device is energized, the liquid crystal molecules are aligned in a certain direction, and the liquid crystal turns transparent. When no current is applied, the orientation of the liquid crystal molecules is so different that light is not scattered and does not become transparent.
  • Patent literature is one of them, and it can switch between opaque and translucent on the entire surface, and switch between opaque and transparent in a line shape. However, it has not been able to respond to the need to view, hide, put light in a specific direction, or block light in a specific direction through show windows or windows. Furthermore, there is a problem that it is not possible to respond to new needs such as wanting to enjoy not only lines but also various shapes such as printed patterns.
  • the present invention has been made in view of the problems in the above-mentioned conventional liquid crystal blind device and its usage, and the object of the present invention is the problem of the conventional liquid crystal blind device described in the background art and its usage. Overcoming the point.
  • a liquid crystal blind device includes a plurality of transparent plates made of glass, resin, or plastic, and a pair of intermediate films formed inside each pair of the transparent plates.
  • the polymer and the liquid crystal composite material are preferably made of a liquid crystal light control film.
  • the liquid crystal blind device is formed of a plurality of arbitrarily shaped block electrodes obtained by laser processing one or more pairs of the transparent electrodes, and the block electrodes are preferably formed at predetermined intervals.
  • the liquid crystal film is preferably formed such that the block electrode is controlled so as to be in a light transmission state along the line of sight of the observer.
  • the method of using the liquid crystal blind device according to the present invention made to achieve the above object includes disposing the liquid crystal blind device on at least the front surface of the light-transmitting external member and disposing the screen member behind the external member.
  • the block electrode is controlled so that a light beam from a light source is in a light-transmitting state, and the light beam transmitted through the liquid crystal blind device is transmitted through the external member and then projected onto the screen member.
  • the liquid crystal blind device has a viewing angle dependency corresponding to the need to view a product or scenery in a specific direction through a show window or window, to hide, to enter light in a specific direction, or to block light.
  • a viewing angle dependency corresponding to the need to view a product or scenery in a specific direction through a show window or window, to hide, to enter light in a specific direction, or to block light.
  • FIG. 1A is a sectional view and FIG. 1B is a perspective view in the case where the liquid crystal blind device of the present invention includes three transparent plates, two pairs of intermediate films, and two liquid crystal films.
  • FIG. 2 is a cross-sectional view of the liquid crystal film of the present invention.
  • FIG. 3 is a view showing a blind that can be seen through from an oblique direction according to the present invention.
  • FIG. 4 is a diagram of a curved partition according to the present invention.
  • FIG. 5 shows the present invention applied to a show window.
  • FIG. 6 is a diagram in which the present invention is applied to a water tank.
  • FIG. 1A is a cross-sectional view when the liquid crystal blind device 1 of the present invention is composed of three transparent plates 10, two pairs of intermediate films 20, and two liquid crystal films 30, and FIG. 1B is a perspective view. is there.
  • the outer two transparent plates 10 have a sandwich structure of 3 mm glass and the inner one transparent plate 10 has a sandwich structure of 8 mm glass.
  • a sandwich structure in which two liquid crystal films 30 patterned in FIG. 1 are sandwiched between intermediate films 20 each composed of a glass plate and / or a resin plate is used.
  • the even-numbered portion of the second sheet electrically transparent, it is possible to realize a blind having angle dependency.
  • the odd-numbered liquid crystal of the first liquid crystal film 30 and the even-numbered liquid crystal of the second liquid crystal film 30 are opaque, so the field of view is obstructed and the opposite side is not visible, but the left diagonal or right diagonal direction Since the even-numbered liquid crystals of the first liquid crystal film 30 and the odd-numbered liquid crystals of the second liquid crystal film 30 are transparent, the opposite side can be seen through these transparent liquid crystal portions.
  • one of the two liquid crystal films 30 is cut with an odd-numbered row of 9 mm and an even-numbered row of 7 mm, and the other is cut with an odd-numbered row of 7 mm and an even-numbered row of 9 mm.
  • the gap (gap) between the odd and even rows is preferably 0.5 mm or less.
  • the above pattern is generically called a block electrode.
  • each block electrode When electricity is applied to each block electrode, it becomes transparent and glass-like, and when electricity is not applied to the block electrode, it becomes opaque and ground-glass-like.
  • FIG. 2 is a cross-sectional view of the liquid crystal film 30 of the present invention.
  • the outermost side of the liquid crystal film 30 is the substrate 40, and the inner side is the transparent electrode 50.
  • the polymer and the liquid crystal composite material 60 are sandwiched between the two.
  • the material of the substrate 40 may be any material that can be processed into a film that transmits ultraviolet rays, such as PET, PMMA, PC, and PEN.
  • the transparent electrode 50 may be anything as long as it can form a so-called transparent electrode 50 such as a conductive polymer, ZnO, SnO2, or carbon nanofiber as well as ITO.
  • the coating method may be any so-called wet coating, such as a dropping method, a non-spin slit method, a knife coating method, an ink jet method, a slit coating method, a dip coating method, a spray method, and a screen printing method.
  • Any adhesive or tape that can cover the periphery can be used to prevent deterioration.
  • Any material that does not degrade the polymer and the liquid crystal composite material 60 and the transparent electrode 50, that is, the material constituting the liquid crystal film may be used as a material for preventing deterioration, but it is desirable that the material is for liquid crystal.
  • the polymer and liquid crystal composite material 60 is a polymer dispersed liquid crystal (PDLC), a polymer network liquid crystal (PNLC), or a NCAP (Nematic). It consists of a liquid crystal light control film such as Curvilinear Aligned Phase) or PALC (Polymer-Assembled Liquid Crystal).
  • Block electrodes are generated by patterning.
  • a pattern picture is drawn on a personal computer (PC), converted into data, and sent to the laser device.
  • the laser device uses this data to execute control when cutting the liquid crystal film.
  • the distance from the laser device to the liquid crystal film surface is measured in real time using laser light, and the laser output is automatically adjusted based on the measured distance for etching.
  • the device When cutting a liquid crystal film, the device is devised so that it can cut a fixed depth by controlling the laser output in real time by measuring the distance in the Z axis (height direction) as well as controlling the XY axis plane. ing. This function is effective for processing the electrode part, and the electrode is realized by cutting only one of the two ITO-PET films (half cut). It is also possible to remove only the transparent electrode layer (ITO here) by shifting the focal point of the laser deeper than the film surface (instead of half-cutting the film).
  • the first usage method is a usage method as a window or a partition.
  • a thin grid or crosspiece is attached so that the thin crosspiece has a predetermined angle so that the inside can not be seen from the outside. They are blocking or blocking light.
  • the present invention can do this electronically so that the scenery in the desired direction can be seen.
  • the window of the neighbor's house is on the left side and there is a beautiful cherry tree on the right side.
  • the window can be seen, but the inconvenience can be solved by configuring the blinds so that the cherry trees can be seen.
  • FIG. 4 shows a partition 100 for use in the various usage modes described above.
  • the partition 100 is in a state of partitioning a plurality of rectangular liquid crystal films 30 by combining a plurality of vertical frame bodies 110 and a plurality of horizontal frame bodies 120.
  • the horizontal frame 120 is smoothly curved, so that when the partition 100 is placed on the floor or the ground, it can be in a self-supporting state without falling down.
  • the plurality of liquid crystal films 30 have electrodes that are not shown, and these electrodes are connected to a control circuit that is not shown. When the control circuit is driven, the specific liquid crystal film 30 can be in a light non-transmissive state, and the other liquid crystal film 30 can be in a light transmissive state.
  • the liquid crystal film 30a displayed with smoke is in a light-impermeable state.
  • the liquid crystal film 30b shown in white is in a light transmission state, and the other side of the partition 100 can be visually recognized through the liquid crystal film 30b.
  • FIG. 5 is a side view applied to a show window.
  • a transparent window glass 130 is arranged on the outer wall 140 of a building such as a store installed on the ground 150.
  • a liquid crystal film 30 is attached to the inside of the window glass 130.
  • a projector 80 and a product 90 placed on a table are placed inside the room. The product 90 placed on the table is installed closer to the window, and the projector 80 is installed farther from the window.
  • the window glass 130 is used as a show window, the area A of the liquid crystal film 30 is made opaque without being energized, and the parts other than the area A are energized and made transparent so that the product 90 can be seen from the outside of the window. In the form of a normal show window.
  • the commodity 90 is not shown, and the window glass 130 is used as a screen so that a passerby can see an image projected from the projector from outside the building.
  • the liquid crystal film is not energized and is made opaque and an image is projected from the projector 80 to the area A in the form of the light beam 80a, a passer-by can see a clear image from outside the building. .
  • cost and space can be greatly improved compared to previous signboard announcements.
  • the space including the outer wall 140, the product 90, and the projector 80 is widened, it can be used as a space for stage, interior, and amusement.
  • a stage device, a large tool, a prop, or an actual person such as a human being is arranged between the projector 80 and the liquid crystal film 30, and free-form patterns such as snow, fallen leaves, and patterns are formed on the plurality of liquid crystal films 30, and are controlled by the control device. It is possible to switch the energized pattern from moment to moment.
  • FIG. 6 shows a usage mode in which a water tank 160 is disposed between the projector 80 and the screen 170.
  • the liquid crystal film 30 is mounted on at least the projector 80 side surface of the water tank 160.
  • a liquid crystal blind device 1 (see FIG. 1) may be disposed.
  • the block electrode of the liquid crystal film 30 is controlled so that the light beam from the projector 80 is in a transmissive state. Thereby, after the light beam that has passed through the liquid crystal film 30 passes through the water tank 160, an image is displayed on the screen 170.
  • the liquid crystal film 30 can be freely cut or used on a curved surface, it can be attached to a water tank of any shape such as a rectangular parallelepiped and a curved surface.
  • the liquid crystal film 30 transmits and blocks light, thereby generating an image in which a pattern, an image, and an effect are fused due to light scattering, refraction, and reflection in water.
  • the water tank 160 can be used purely with water, or it can contain fine particles in the water, or can contain actual things such as fish, aquatic plants and stones. The light is further diffused when the fine particles are put into water. Moreover, by putting the real thing, it can be set as the form which the real image and the virtual image united.
  • the observer looks at the water tank 160 with the projector 80 in the back, but when the observer is between the screen 170 and the water tank 160 and faces the projector 80 through the water tank 160, the optical path in the water tank 160 is changed. You can also appreciate the effect of image fusion.
  • the above embodiment can operate in the same manner as the liquid crystal blind device 1 shown in FIG.
  • the present invention it is possible to change the expression form by changing the composition of the polymer and the liquid crystal composite material 60 that are constituent elements of the liquid crystal film 30.
  • a space effect can also be performed by combining a liquid crystal film and a magic mirror. The same effect can be realized not only in the production using transmitted light but also in a system using reflected light, a so-called front screen system.

Abstract

A liquid-crystal blind device which comes into the state of transmitting light along the line of sight of an observer, and which includes, formed therein, a plurality of patterns of any shape. A method of using the device is provided. The device is characterized by comprising: a plurality of transparent plates constituted of a glass, resin, or plastic; a pair of interlayers, adhesive materials, or pressure-sensitive adhesive materials formed on the inner sides of each pair of the transparent plates; and a liquid-crystal film sandwiched between the pair of interlayers, adhesive materials, or pressure-sensitive adhesive materials. The device is further characterized in that the liquid-crystal film comprises: a pair of substrates; a pair of or multiple pairs of transparent electrodes formed inside the pair of substrates; and a polymer/liquid-crystal composite material sandwiched between the pair of transparent electrodes or between each of the multiple pairs of transparent electrodes.

Description

液晶ブラインド装置とその使用方法Liquid crystal blind device and its use
　非通電時には不透明だが、電圧を印加すると透明に変わる液晶ブラインド装置が建物の窓などに用いられるようになってきた。本発明は、窓ガラスやパーティション、自動車の窓やルーフ、電車、航空機等の窓として用いる液晶ブラインド装置とその使用方法に関するものである。 液晶 Liquid crystal blind devices that are opaque when de-energized but turn transparent when a voltage is applied have been used for building windows. The present invention relates to a liquid crystal blind device used as a window of a window glass or a partition, a window or roof of an automobile, a train, an aircraft or the like and a method of using the same.
　液晶ブラインド装置は通電すると液晶の分子が一定方向に整列して、液晶が透明に変わる。非通電時は液晶の分子の向きがバラバラなので光が散乱して透明にならないというものであり今までに種々提案されている。特許文献もそのひとつであり、全面の不透明と半透明の切り替えや、ライン状の不透明と透明の切り替えができる。
　しかし、ショーウィンドウや窓を通して特定方向の商品や景色をみたい、隠したい、特定方向の光を入れたい、遮光したいというニーズには対応できていなかった。更に、ラインだけでなくプリント柄のような多様な形状を楽しみたい、といった新しいニーズには対応できないという問題点があった。 When the liquid crystal blind device is energized, the liquid crystal molecules are aligned in a certain direction, and the liquid crystal turns transparent. When no current is applied, the orientation of the liquid crystal molecules is so different that light is not scattered and does not become transparent. Patent literature is one of them, and it can switch between opaque and translucent on the entire surface, and switch between opaque and transparent in a line shape.
However, it has not been able to respond to the need to view, hide, put light in a specific direction, or block light in a specific direction through show windows or windows. Furthermore, there is a problem that it is not possible to respond to new needs such as wanting to enjoy not only lines but also various shapes such as printed patterns.
特許第４０３１５０６号Patent No. 4031506
　そこで、本発明は上記従来の液晶ブラインド装置とその使用方法における問題点に鑑みてなされたものであって、本発明の目的は、背景技術で述べた従来の液晶ブラインド装置とその使用方法の問題点を克服することにある。 Therefore, the present invention has been made in view of the problems in the above-mentioned conventional liquid crystal blind device and its usage, and the object of the present invention is the problem of the conventional liquid crystal blind device described in the background art and its usage. Overcoming the point.
　上記目的を達成するためになされた、本発明による液晶ブラインド装置は、ガラス又は樹脂又はプラスティックからなる複数の透明板と、各１対の前記透明板の内側に形成された１対の中間膜又は接着材と、前記１対の中間膜又は接着材に挟まれた液晶フィルムを有し、前記液晶フィルムは、１対の基板と、前記１対の基板の内側に形成された１対又は複数対の透明電極と、前記１対又は複数対の透明電極の各々の対に挟まれた高分子及び液晶複合材料と、を含むことを特徴とする。
　前記高分子及び液晶複合材料は液晶調光フィルムからなることが好ましい。 In order to achieve the above object, a liquid crystal blind device according to the present invention includes a plurality of transparent plates made of glass, resin, or plastic, and a pair of intermediate films formed inside each pair of the transparent plates. An adhesive and a liquid crystal film sandwiched between the pair of intermediate films or adhesives, wherein the liquid crystal film is a pair of substrates and one or more pairs formed inside the pair of substrates. And a polymer and a liquid crystal composite material sandwiched between each pair of the one or more pairs of transparent electrodes.
The polymer and the liquid crystal composite material are preferably made of a liquid crystal light control film.
　前記液晶ブラインド装置は、１対又は複数対の前記透明電極をレーザー加工した、任意形状の複数のブロック電極から形成されており、前記ブロック電極は、所定の間隔で形成されていることが好ましい。 The liquid crystal blind device is formed of a plurality of arbitrarily shaped block electrodes obtained by laser processing one or more pairs of the transparent electrodes, and the block electrodes are preferably formed at predetermined intervals.
　前記液晶フィルムは観察者の視線に沿って光透過状態となるように前記ブロック電極が制御されるように形成されていることが好ましい。 The liquid crystal film is preferably formed such that the block electrode is controlled so as to be in a light transmission state along the line of sight of the observer.
　又、上記目的を達成するためになされた本発明による液晶ブラインド装置の使用方法は、液晶ブラインド装置を光透過性の外部部材の少なくとも前面に配置し、前記外部部材の後方にスクリーン部材を配置し、光源からの光線を光透過状態とするように前記前記ブロック電極を制御し、前記液晶ブラインド装置を透過した光線が前記外部部材を透過した後、前記スクリーン部材に映し出すことを特徴とする。 In addition, the method of using the liquid crystal blind device according to the present invention made to achieve the above object includes disposing the liquid crystal blind device on at least the front surface of the light-transmitting external member and disposing the screen member behind the external member. The block electrode is controlled so that a light beam from a light source is in a light-transmitting state, and the light beam transmitted through the liquid crystal blind device is transmitted through the external member and then projected onto the screen member.
　本発明による液晶ブラインド装置は、ショーウィンドウや窓を通してから特定方向の商品や景色をみたい、隠したい、特定方向の光を入れたい、遮光したい、というニーズに対応する視野角依存性を有し、ラインだけでなくプリント柄のような多様な形状を楽しみたい、などのニーズに対応して、視覚効果を高める自由形状のパターン作成が容易である、という効果がある。 The liquid crystal blind device according to the present invention has a viewing angle dependency corresponding to the need to view a product or scenery in a specific direction through a show window or window, to hide, to enter light in a specific direction, or to block light. In response to the need to enjoy not only lines but also various shapes such as printed patterns, it is easy to create free-form patterns that enhance visual effects.
図１は、本発明の液晶ブラインド装置が、３枚の透明板、２対の中間膜、２枚の液晶フィルムからなる場合の（ａ）断面図と（ｂ）斜視図である。FIG. 1A is a sectional view and FIG. 1B is a perspective view in the case where the liquid crystal blind device of the present invention includes three transparent plates, two pairs of intermediate films, and two liquid crystal films. 図２は本発明の前記液晶フィルムの断面図である。FIG. 2 is a cross-sectional view of the liquid crystal film of the present invention. 図３は本発明の斜め方向からは透過して見えるブラインドを示す図である。FIG. 3 is a view showing a blind that can be seen through from an oblique direction according to the present invention. 図４は本発明による曲面パーティションの図である。FIG. 4 is a diagram of a curved partition according to the present invention. 図５は本発明をショーウィンドウに適用した図である。FIG. 5 shows the present invention applied to a show window. 図６は本発明を水槽に適用した図である。FIG. 6 is a diagram in which the present invention is applied to a water tank.
　次に、本発明に係る液晶ブラインド装置を実施するための形態の具体例を、図面を参照しながら説明する。 Next, a specific example of a mode for carrying out the liquid crystal blind device according to the present invention will be described with reference to the drawings.
　図１（ａ）は本発明の液晶ブラインド装置１が３枚の透明板１０、２対の中間膜２０、２枚の液晶フィルム３０からなる場合の断面図であり、（ｂ）は斜視図である。この例では外側の２枚の透明板１０は３mmガラス、内側の１枚の透明板１０は８ｍｍガラスのサンドイッチ構造になっている。 1A is a cross-sectional view when the liquid crystal blind device 1 of the present invention is composed of three transparent plates 10, two pairs of intermediate films 20, and two liquid crystal films 30, and FIG. 1B is a perspective view. is there. In this example, the outer two transparent plates 10 have a sandwich structure of 3 mm glass and the inner one transparent plate 10 has a sandwich structure of 8 mm glass.
　図１においてパターニングされた２枚の液晶フィルム３０を各々ガラス板あるいは樹脂板もしくはその両方からなる中間膜２０で挟むサンドイッチ構造とし、２枚ある液晶フィルム３０の中で１枚目の奇数列部分と２枚目の偶数列部分を電気的に透明にすることにより角度依存性をもったブラインドの実現が可能となる。正面からは１枚目の液晶フィルム３０の奇数列の液晶と２枚目の液晶フィルム３０の偶数列の液晶が不透明なために、視界が遮られ反対側が見えなくなる、しかし左斜め又は右斜め方向から見ると１枚目の液晶フィルム３０の偶数列の液晶と２枚目の液晶フィルム３０の奇数列の液晶が透明になっているために、これら透明の液晶部分を通して反対側が見える。 A sandwich structure in which two liquid crystal films 30 patterned in FIG. 1 are sandwiched between intermediate films 20 each composed of a glass plate and / or a resin plate is used. By making the even-numbered portion of the second sheet electrically transparent, it is possible to realize a blind having angle dependency. From the front, the odd-numbered liquid crystal of the first liquid crystal film 30 and the even-numbered liquid crystal of the second liquid crystal film 30 are opaque, so the field of view is obstructed and the opposite side is not visible, but the left diagonal or right diagonal direction Since the even-numbered liquid crystals of the first liquid crystal film 30 and the odd-numbered liquid crystals of the second liquid crystal film 30 are transparent, the opposite side can be seen through these transparent liquid crystal portions.
　２枚の液晶フィルム３０の奇数列信号線および偶数列信号線の両方に電気を印加するとすべて透明となり透明ガラス様となる。２枚の液晶フィルム３０に電気を印加しない場合はスリガラス様となる。２枚の液晶フィルム３０の一方の奇数列信号線に電気を印加し、もう一方の液晶フィルム３０の偶数列信号線に電気を印加すると図３（ａ）のように正面からはブラインドとなり、図３（ｂ）のように斜め方向からは透過して見える角度依存性を持ったブラインドとなる。 ¡When electricity is applied to both the odd-numbered signal lines and the even-numbered signal lines of the two liquid crystal films 30, all become transparent and become transparent glass-like. When no electricity is applied to the two liquid crystal films 30, it becomes a ground glass. When electricity is applied to one odd-numbered signal line of the two liquid crystal films 30 and electricity is applied to the even-numbered signal line of the other liquid crystal film 30, it becomes blind from the front as shown in FIG. As shown in 3 (b), the blind has an angle dependency that appears to be transmitted from an oblique direction.
　２枚ある液晶フィルム３０の一方は奇数列を９ｍｍ、偶数列を７ｍｍでカットし、もう一方は奇数列を７ｍｍ、偶数列を９ｍｍでカットすることが好ましい。なお奇数列と偶数列のギャップ（隙間）は０．５ｍｍ以下が好ましい。 It is preferable that one of the two liquid crystal films 30 is cut with an odd-numbered row of 9 mm and an even-numbered row of 7 mm, and the other is cut with an odd-numbered row of 7 mm and an even-numbered row of 9 mm. The gap (gap) between the odd and even rows is preferably 0.5 mm or less.
　上記した、２枚ある液晶フィルム３０の１枚目の奇数列、２枚目の液晶フィルム３０の偶数列を電気的に透明にすること以外にも多様な形状のパターンを形成することが可能である。
　例えば、２枚の液晶フィルム３０の半分に電気を印加し、残りの部分の１枚目には奇数列信号線に電気を印加し２枚目の偶数列信号線に電気を印加すると、上記半分は透明ガラス様となり、残りは角度依存性を持ったブラインドが出来る。 It is possible to form patterns of various shapes other than making the first odd-numbered row of the two liquid crystal films 30 and the even-numbered row of the second liquid crystal film 30 electrically transparent as described above. is there.
For example, when electricity is applied to half of the two liquid crystal films 30, electricity is applied to the odd-numbered column signal lines in the first one of the remaining portions and electricity is applied to the second even-numbered column signal lines, the above half Becomes transparent glass, and the rest can be blind with angle dependency.
　また基板の任意の場所に一定あるいはランダムに同一直径形状のパターンを形成したり、ストライプ、波形、市松などの模様のパターンや、カーテン地のような多様な織やプリントのパターンを形成することも可能である。液晶フィルムをレーザーでパターニングすることにより、上記のように多様なパターンの形成が可能となる。 It is also possible to form a pattern with the same diameter shape at any place on the substrate, or to form various patterns such as stripes, corrugations, checkers, and various woven and printed patterns such as curtains. Is possible. By patterning a liquid crystal film with a laser, various patterns can be formed as described above.
　以上のパターンを総称してブロック電極と呼ぶ。各々のブロック電極に電気を印加すると、透明、ガラス様となり、ブロック電極に電気を印加しないと、不透明、スリガラス様となる。 The above pattern is generically called a block electrode. When electricity is applied to each block electrode, it becomes transparent and glass-like, and when electricity is not applied to the block electrode, it becomes opaque and ground-glass-like.
　図２は、本発明の液晶フィルム３０の断面図である。液晶フィルム３０の最外側が基板４０であり、その内側が透明電極５０であり、この二つに高分子及び液晶複合材料６０が挟まれている。 FIG. 2 is a cross-sectional view of the liquid crystal film 30 of the present invention. The outermost side of the liquid crystal film 30 is the substrate 40, and the inner side is the transparent electrode 50. The polymer and the liquid crystal composite material 60 are sandwiched between the two.
　基板４０の材質は、PET、PMMA、PC、PENなど紫外線を透過するフィルムに加工可能な材質であれば何でも良い。透明電極５０はITOだけでなく導電性ポリマーやZnO、SnO2、カーボンナノファイバーなど所謂、透明電極５０を形成できるものであれば何でも良い。 The material of the substrate 40 may be any material that can be processed into a film that transmits ultraviolet rays, such as PET, PMMA, PC, and PEN. The transparent electrode 50 may be anything as long as it can form a so-called transparent electrode 50 such as a conductive polymer, ZnO, SnO2, or carbon nanofiber as well as ITO.
　コーティング方法は、滴下法、ノンスピン・スリット法、ナイフコート法、インクジェット法、スリットコート法、ディップコート法、スプレー法、スクリーン印刷法など所謂、ウェットコーティングといわれるものであれば何れでも良い。劣化防止として接着剤、テープなど周辺をカバー出来るものであれば良い。劣化防止の材質としては高分子及び液晶複合材料６０、ならびに透明電極５０、つまり液晶フィルムを構成する材料、を劣化させない材質であれば何でも良いが、液晶用のものであれば尚、望ましい。 The coating method may be any so-called wet coating, such as a dropping method, a non-spin slit method, a knife coating method, an ink jet method, a slit coating method, a dip coating method, a spray method, and a screen printing method. Any adhesive or tape that can cover the periphery can be used to prevent deterioration. Any material that does not degrade the polymer and the liquid crystal composite material 60 and the transparent electrode 50, that is, the material constituting the liquid crystal film, may be used as a material for preventing deterioration, but it is desirable that the material is for liquid crystal.
　高分子及び液晶複合材料６０は高分子分散型液晶(PDLC: Polymer Dispersed Liquid Crystal）又は高分子ネットワーク型液晶(PNLC: Polymer Network Liquid Crystal)又はNCAP(Nematic
Curvilinear Aligned Phase)又はPALC（Polymer-Assembled Liquid Crystal）など、液晶調光フィルムからなる。 The polymer and liquid crystal composite material 60 is a polymer dispersed liquid crystal (PDLC), a polymer network liquid crystal (PNLC), or a NCAP (Nematic).
It consists of a liquid crystal light control film such as Curvilinear Aligned Phase) or PALC (Polymer-Assembled Liquid Crystal).
　次にレーザー装置を使った液晶フィルムのパターニングについて説明する。パターニングによりブロック電極を生成する。パターンの形状が決まると、パソコン（PC）でパターン絵を作図しデータ化してレーザー装置にデータを送る。レーザー装置はこのデータを使って液晶フィルムをカットする際の制御を実行する。同時にレーザー装置から液晶フィルム表面までの距離をレーザー光を使ってリアルタイムに測定し、測定した距離を基にレーザー出力を自動調整してエッチングする。 Next, the patterning of the liquid crystal film using a laser device will be described. Block electrodes are generated by patterning. When the pattern shape is determined, a pattern picture is drawn on a personal computer (PC), converted into data, and sent to the laser device. The laser device uses this data to execute control when cutting the liquid crystal film. At the same time, the distance from the laser device to the liquid crystal film surface is measured in real time using laser light, and the laser output is automatically adjusted based on the measured distance for etching.
　液晶フィルムをカットする場合、XY軸平面の制御は勿論、Z軸（高さ方向）の距離を測定してレーザーの出力をリアルタイムで制御して一定深さのカットが出来るように装置を工夫している。この機能は電極部分の加工に有効で、電極は２枚のITO-PETフィルムの１枚だけをカット（ハーフカット）する事で実現する。
　レーザーの焦点をフィルム表面より深部にずらし透明電極層（ここではITO）のみを除去（フィルムを切断するハーフカットではない）することも可能である。 When cutting a liquid crystal film, the device is devised so that it can cut a fixed depth by controlling the laser output in real time by measuring the distance in the Z axis (height direction) as well as controlling the XY axis plane. ing. This function is effective for processing the electrode part, and the electrode is realized by cutting only one of the two ITO-PET films (half cut).
It is also possible to remove only the transparent electrode layer (ITO here) by shifting the focal point of the laser deeper than the film surface (instead of half-cutting the film).
　液晶フィルムのパターニングには通常、化学的に行うケミカルエッチングが主流であり、レーザーを使う場合でも事前にパターニングする必要がある。そのため少量で任意のパターニングを行う事は不可能である。
　これに対して本発明では後加工でレーザーを使いパターニングを行うため、あらゆる種類の液晶フィルムで上記のように多様なパターンの形成が実現可能となる。 In general, chemical etching performed chemically is the mainstream for patterning a liquid crystal film, and it is necessary to perform patterning in advance even when a laser is used. Therefore, it is impossible to perform arbitrary patterning with a small amount.
On the other hand, in the present invention, since patterning is performed using a laser in post-processing, formation of various patterns as described above can be realized with all kinds of liquid crystal films.
　次に、本発明の液晶ブラインド装置の種々の使用方法について説明する。
　第１の使用方法は、窓やパーティションとしての使用方法である。 Next, various methods of using the liquid crystal blind device of the present invention will be described.
The first usage method is a usage method as a window or a partition.
　従来より用いられている機械的なブラインドやルーバーや隠し窓においては、細い格子や桟をつけて、細い桟に所定の角度を持たせることにより、外から内部の様子が見えないように視線をさえぎったり、光を遮ったりしている。本発明はこれを電子的に行なうことによって、所望の方向の景色が見えるようにできる。 For mechanical blinds, louvers and concealed windows that have been used in the past, a thin grid or crosspiece is attached so that the thin crosspiece has a predetermined angle so that the inside can not be seen from the outside. They are blocking or blocking light. The present invention can do this electronically so that the scenery in the desired direction can be seen.
　例えば窓から外を見た場合に、左側には隣家の窓が右側には美しい桜の木があり、隣家の窓に目を向けると視線が合う不都合がある場合に対し、本願の発明では、隣家の窓が見えないが、桜の木が見えるように、ブラインドを構成することにより不都合を解消できる。 For example, when looking out from the window, the window of the neighbor's house is on the left side and there is a beautiful cherry tree on the right side. The window can be seen, but the inconvenience can be solved by configuring the blinds so that the cherry trees can be seen.
　このような使用方法は、住宅や病院やオフィスなどあらゆる住空間のパーティションに有効である。病院では、新生児室、診察室、病室、ＩＣＵなどのガラスの仕切りに使えばプライバシー保護で患者の負担も低減し、カーテンと違い埃がつかないなど衛生面でも安心、等多様性のある用途に使用できる。視野カット、ストレス低減、カーテン不要に加えて、オープンにする時間帯やプライバシーを重視する時間帯を決めることにより、患者や家族のプライバシーとアメニティーによりきめ細かく対応することも可能になる。 This kind of usage is effective for partitions in all living spaces such as houses, hospitals and offices. In hospitals, if used for glass partitions in newborn rooms, examination rooms, hospital rooms, ICUs, etc., privacy is reduced and the burden on patients is reduced. Can be used. In addition to cutting the field of view, reducing stress, and eliminating the need for curtains, it is possible to respond more closely to the privacy and amenities of patients and families by deciding when to open and when to focus on privacy.
　図４は以上の各種の使用態様に用いるためのパーティション１００を示す。パーティション１００は複数の縦枠体１１０と複数の横枠体１２０とを組み合わせることにより、矩形状の複数の液晶フィルム３０を仕切った状態となっている。横枠体１２０は滑らかに湾曲されており、これによりパーティション１００をフロアや地面上に載置したとき、倒れることなく自立状態となることができる。
　複数の液晶フィルム３０は図示を省略した電極を有し、この電極が図示を省略した制御回路に接続されている。そして、制御回路が駆動することにより、特定の液晶フィルム３０が光不透過状態となり、他の液晶フィルム３０が光透過状態となることが可能である。図４において、スモークで表示した液晶フィルム３０ａは光不透過状態となっている。白抜きで表わした液晶フィルム３０ｂは光透過状態となっており、この液晶フィルム３０ｂを通じてパーティション１００の向こう側を視認することができる。 FIG. 4 shows a partition 100 for use in the various usage modes described above. The partition 100 is in a state of partitioning a plurality of rectangular liquid crystal films 30 by combining a plurality of vertical frame bodies 110 and a plurality of horizontal frame bodies 120. The horizontal frame 120 is smoothly curved, so that when the partition 100 is placed on the floor or the ground, it can be in a self-supporting state without falling down.
The plurality of liquid crystal films 30 have electrodes that are not shown, and these electrodes are connected to a control circuit that is not shown. When the control circuit is driven, the specific liquid crystal film 30 can be in a light non-transmissive state, and the other liquid crystal film 30 can be in a light transmissive state. In FIG. 4, the liquid crystal film 30a displayed with smoke is in a light-impermeable state. The liquid crystal film 30b shown in white is in a light transmission state, and the other side of the partition 100 can be visually recognized through the liquid crystal film 30b.
　本発明の液晶ブラインド装置の第２の使用方法としては、ショーウィンドウとしての使用方法がある。 As a second usage method of the liquid crystal blind device of the present invention, there is a usage method as a show window.
　図５はショーウィンドウに適用した側面図である。地面１５０上に設置された店舗等の建物の外壁１４０には、透明な窓ガラス１３０が配置されている。窓ガラス１３０の内側には液晶フィルム３０が貼り付けられている。
　部屋の内部には台に載ったプロジェクタ８０と商品９０が置かれている。台に載った商品９０は窓のより近くに設置されており、プロジェクタ８０は窓からより離れて設置されている。ここで、窓ガラス１３０をショーウィンドウとして使うときには、液晶フィルム３０のＡ領域は通電せずに不透明にし、Ａ領域以外の部分は通電して透明にすることにより、窓の外から商品９０が見えて、通常のショーウィンドウの形になる。
　他の使用例としては、商品９０は見せず、窓ガラス１３０をスクリーンとして用い、プロジェクタから投射した画像を、通行人が建物の外から眺められるようにできる。この場合は液晶フィルムには通電せず不透明にしておき、Ａ領域にプロジェクタ８０から光線８０ａのような形で画像を投射すると、通行人が建物の外から鮮明な画像を見ることが可能になる。
　室内からプロジェクター投射によって静止画や動画を放映することにより、これまでの看板公告に比べ、コスト、スペース両面での大幅な改善が図れる。 FIG. 5 is a side view applied to a show window. A transparent window glass 130 is arranged on the outer wall 140 of a building such as a store installed on the ground 150. A liquid crystal film 30 is attached to the inside of the window glass 130.
A projector 80 and a product 90 placed on a table are placed inside the room. The product 90 placed on the table is installed closer to the window, and the projector 80 is installed farther from the window. Here, when the window glass 130 is used as a show window, the area A of the liquid crystal film 30 is made opaque without being energized, and the parts other than the area A are energized and made transparent so that the product 90 can be seen from the outside of the window. In the form of a normal show window.
As another example of use, the commodity 90 is not shown, and the window glass 130 is used as a screen so that a passerby can see an image projected from the projector from outside the building. In this case, if the liquid crystal film is not energized and is made opaque and an image is projected from the projector 80 to the area A in the form of the light beam 80a, a passer-by can see a clear image from outside the building. .
By projecting still images and moving images from the room by projector projection, cost and space can be greatly improved compared to previous signboard announcements.
　外壁１４０と商品９０とプロジェクタ８０を含む空間を広くすると、舞台やインテリアやアミューズメントの空間としても使用できる。例えばプロジェクター８０と液晶フィルム３０の間に舞台装置や大道具や小道具や人間のような実物を配置し、雪や落ち葉や模様など自由形状のパターンを複数の液晶フィルム３０に形成し、制御装置によって通電するパターンを時々刻々切り替えることが可能になる。 If the space including the outer wall 140, the product 90, and the projector 80 is widened, it can be used as a space for stage, interior, and amusement. For example, a stage device, a large tool, a prop, or an actual person such as a human being is arranged between the projector 80 and the liquid crystal film 30, and free-form patterns such as snow, fallen leaves, and patterns are formed on the plurality of liquid crystal films 30, and are controlled by the control device. It is possible to switch the energized pattern from moment to moment.
　図６はプロジェクタ８０とスクリーン１７０との間に水槽１６０を配置した使用態様である。水槽１６０の少なくともプロジェクタ８０側の面に液晶フィルム３０を装着する。液晶フィルム３０に代えて、液晶ブラインド装置１（図１参照）を配置しても良い。
　プロジェクタ８０からの光線を透過状態とするよう液晶フィルム３０のブロック電極を制御する。これにより、液晶フィルム３０を透過した光線が水槽１６０を透過した後、スクリーン１７０に映像を映し出す。 FIG. 6 shows a usage mode in which a water tank 160 is disposed between the projector 80 and the screen 170. The liquid crystal film 30 is mounted on at least the projector 80 side surface of the water tank 160. Instead of the liquid crystal film 30, a liquid crystal blind device 1 (see FIG. 1) may be disposed.
The block electrode of the liquid crystal film 30 is controlled so that the light beam from the projector 80 is in a transmissive state. Thereby, after the light beam that has passed through the liquid crystal film 30 passes through the water tank 160, an image is displayed on the screen 170.
　液晶フィルム３０は、自由にカットしたり曲面への使用も容易なために、直方体のほか曲面体などあらゆる形状の水槽に貼り付けることが可能である。 Since the liquid crystal film 30 can be freely cut or used on a curved surface, it can be attached to a water tank of any shape such as a rectangular parallelepiped and a curved surface.
　液晶フィルム３０の光の透過や遮断の動作によって、水中での光の散乱や屈折や反射などの効果により、パターンや画像と効果とが融合した画像が生成される。 The liquid crystal film 30 transmits and blocks light, thereby generating an image in which a pattern, an image, and an effect are fused due to light scattering, refraction, and reflection in water.
　図６に示す実施形態においては、水槽１６０の使用形態としては純粋に水だけを入れるか、水中に微粒子を含ませたり、魚や水草や石など実物を入れることも可能である。水中に微粒子を入れると光がさらに拡散される。また、実物を入れることにより、リアルな画像とバーチャルな画像が融合した形態とすることができる。 In the embodiment shown in FIG. 6, the water tank 160 can be used purely with water, or it can contain fine particles in the water, or can contain actual things such as fish, aquatic plants and stones. The light is further diffused when the fine particles are put into water. Moreover, by putting the real thing, it can be set as the form which the real image and the virtual image united.
　通常は観察者がプロジェクタ８０を背に水槽１６０を見る態様であるが、観察者がスクリーン１７０と水槽１６０の間にあって、水槽１６０を通してプロジェクタ８０の方向に向くことにより、水槽１６０の中の光路と画像が融合した効果を鑑賞することもできる。以上の実施形態は、図１に示す液晶ブラインド装置１としても同様に作用することができる。 Normally, the observer looks at the water tank 160 with the projector 80 in the back, but when the observer is between the screen 170 and the water tank 160 and faces the projector 80 through the water tank 160, the optical path in the water tank 160 is changed. You can also appreciate the effect of image fusion. The above embodiment can operate in the same manner as the liquid crystal blind device 1 shown in FIG.
　本発明において、液晶フィルム３０の構成要素である高分子及び液晶複合材料６０の組成変更することによって表現形態を変更することが可能である。また、液晶フィルムとマジックミラーを組み合わせることによっても空間演出を行なうことができる。透過光を使った演出のみならず反射光を利用する方式、所謂、フロントスクリーン方式でも同様な効果が実現できる。 In the present invention, it is possible to change the expression form by changing the composition of the polymer and the liquid crystal composite material 60 that are constituent elements of the liquid crystal film 30. A space effect can also be performed by combining a liquid crystal film and a magic mirror. The same effect can be realized not only in the production using transmitted light but also in a system using reflected light, a so-called front screen system.
　尚、本発明は、上述の実施形態に限られるものではない。本発明の技術的範囲から逸脱しない範囲内で多様に変更実施することが可能である。 Note that the present invention is not limited to the above-described embodiment. Various modifications can be made without departing from the technical scope of the present invention.
　本発明は車窓、オフィスや家屋の窓、パーティションやブラインド、カーテンのほか、映像用スクリーン、電子ポスター、ショーウィンドウ、自動車の窓ガラス、玩具やアミューズメントへの利用、建材、自動ドア、映像投影による広告、水槽に液晶フィルムを貼り付けての映像投影、デジタルサイネージなどの分野への適用が可能である。
 
 
  In addition to car windows, office and house windows, partitions and blinds, curtains, video screens, electronic posters, show windows, automobile window glass, use for toys and amusements, building materials, automatic doors, and advertisements by video projection It can be applied to fields such as video projection by attaching a liquid crystal film to a water tank and digital signage.


　　　１　　液晶ブラインド装置
　　　１０　　透明板
　　　２０　　中間膜
　　　３０　　液晶フィルム
　　　３０ａ　不透明状態
　　　３０ｂ　透明状態
　　　４０　　基板
　　　５０　　透明電極
　　　６０　　高分子及び液晶複合材料
　　　８０　　プロジェクタ
　　　８０ａ　光線
　　　９０　　商品
　　　Ａ　　画像投影面
　１００　　パーティション
　１１０　　枠体
　１２０　　ショーウィンドウ
　１３０　　窓ガラス
　１４０　　外壁
　１５０　　地面
　１６０　　水槽
　１７０　　スクリーン
  DESCRIPTION OF SYMBOLS 1 Liquid crystal blind apparatus 10 Transparent board 20 Intermediate film 30 Liquid crystal film 30a Opaque state 30b Transparent state 40 Substrate 50 Transparent electrode 60 Polymer and liquid crystal composite material 80 Projector 80a Light beam 90 Product A Image projection surface 100 Partition 110 Frame body 120 Show window 130 Window glass 140 Outer wall 150 Ground 160 Aquarium 170 Screen

Claims (6)

  1. 　ガラス又は樹脂もしくはプラスティックからなる複数の透明板と、
    　各１対の前記透明板の内側に形成された１対の中間膜又は接着材又は粘着材と、
    　前記１対の中間膜又は接着材又は粘着材に挟まれた液晶フィルムを有し、
    　前記液晶フィルムは、１対の基板と、前記１対の基板の内側に形成された１対又は複数対の透明電極と、前記１対又は複数対の透明電極の各々の対に挟まれた高分子及び液晶複合材料と、を含むことを特徴とする液晶ブラインド装置。     A plurality of transparent plates made of glass or resin or plastic;
    A pair of intermediate films or adhesives or adhesives formed inside each pair of the transparent plates;
    Having a liquid crystal film sandwiched between the pair of intermediate films or adhesives or adhesives,
    The liquid crystal film includes a pair of substrates, a pair of transparent electrodes formed inside the pair of substrates, and a pair of high electrodes sandwiched between the pair of transparent electrodes. A liquid crystal blind device comprising a molecule and a liquid crystal composite material.
  2. 　前記高分子及び液晶複合材料は液晶調光フィルムからなることを特徴とする請求項１に記載の液晶ブラインド装置。 2. The liquid crystal blind device according to claim 1, wherein the polymer and the liquid crystal composite material comprise a liquid crystal light control film.
  3. 　１対又は複数対の前記透明電極はレーザー加工した、任意形状の複数のブロック電極から形成されていることを特徴とする請求項１に記載の液晶ブラインド装置。 2. The liquid crystal blind device according to claim 1, wherein the one or more pairs of the transparent electrodes are formed by a plurality of block electrodes having an arbitrary shape processed by laser.
  4. 　前記ブロック電極は所定の間隔で形成されていることを特徴とする請求項３に記載の液晶ブラインド装置。 4. The liquid crystal blind device according to claim 3, wherein the block electrodes are formed at predetermined intervals.
  5. 　前記液晶フィルムは、観察者の視線に沿って光透過状態となるように、前記ブロック電極が制御されるように形成されていることを特徴とする請求項３，４に記載の液晶ブラインド装置。 5. The liquid crystal blind device according to claim 3, wherein the liquid crystal film is formed such that the block electrode is controlled so as to be in a light transmission state along the line of sight of an observer.
  6. 　請求項１乃至５のいずれか１項に記載の液晶ブラインド装置を光透過性の外部部材の少なくとも前面に配置し、前記外部部材の後方にスクリーン部材を配置し、光源からの光線を光透過状態とするように前記透明電極を構成しているブロック電極を制御し、前記液晶ブラインド装置を透過した光線が前記外部部材を透過した後、前記スクリーン部材に映し出すことを特徴とする液晶ブラインド装置の使用方法。
          6. The liquid crystal blind device according to claim 1, wherein the liquid crystal blind device is disposed on at least a front surface of the light transmissive external member, a screen member is disposed behind the external member, and light from the light source is transmitted through the light. Use of the liquid crystal blind device, wherein the block electrode constituting the transparent electrode is controlled so that the light beam transmitted through the liquid crystal blind device is reflected on the screen member after passing through the external member. Method.
PCT/JP2009/071452 2009-03-02 2009-12-24 Liquid-crystal blind device and method of using same WO2010100807A1 (en)

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