JP5317927B2 - Information display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information display device, capable of readily displaying an arbitrary display at an arbitrary location and attaining color variations, and is thus suitable for an advertisement display medium and an electronic display medium, such as, POP advertisement in a manner which is effective and able to strongly attracting viewer's line of vision and interest. <P>SOLUTION: The information display device A includes at least an insulating base material layer; an electrode layer 11, arranged on the base material layer and capable of supplying power; a display medium 20 capable of changing display by receiving power from the electrode layer 11 and is attachable and removable to and from the electrode layer 11; and a translucent insulation layer 40 arranged on the face of the display medium 20 located opposite to the face, in contact with the electrode layer 11. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an information display device such as an advertisement display medium such as a POP and an electronic display medium, and more particularly to an information display device including a display medium capable of reversibly changing a visual state by an action of an electric field or the like. .

Conventionally, it has been proposed to apply to a display medium that is often made of paper and an advertising display medium such as a POP by making use of the characteristics of electronic paper that is thin, flexible, and consumes little power ( For example, refer nonpatent literature 1 and 2.).
In particular, advertising prints that could not be switched so far can be switched to display advertisements, and it has a higher design and can attract the viewer's line of sight and interest. It has been proposed to use electronic paper for advertisement display media such as magazines, posters, POPs, billboards (see, for example, Patent Documents 1 and 2), and electronic paper is used for electronic shelf labels and electronic books. It is known.

  However, display media and displays for advertisement display media such as POPs that have been proposed in the past need to create a special base for active matrix driving and segment display, and are complicated in structure and costly. There is a problem in that it becomes very high.

  In addition, in the case of segment display, there is a problem in that the advertisement display such as a display medium or POP once produced cannot be changed to another, and an advertisement display sensitive to fashion cannot be easily produced as appropriate. have.

  On the other hand, an electronic shelf label (for example, see Patent Document 3) using an electrophoresis system is known as an information display medium, and a product information display tag using this electrophoresis display system is more flexible than a liquid crystal display surface. It is an inexpensive display method because it has excellent performance, has low power consumption, and remains displayed even when the power is turned off.

  However, the electronic shelf label of Patent Document 3 has a problem in that it is not easy to move the shelf label due to the rearrangement of the product because the electronic shelf label is fixed to the product display shelf to which the power supply is wired. . In addition, this electronic shelf label discloses that two different information of red and black can be displayed in the same background color, but it has a small display area, lacks impact, and is an element appealing to consumers. The present situation is that an information display device that has a high display performance and is rich in variations that appeal to purchase will be eagerly desired.

JP-A-2004-341519 (Claims, Examples, etc.) JP 2004-220498 A (Claims, Examples, etc.) Japanese Patent Laid-Open No. 2001-109407 (Claims, Examples, etc.)

Supervised by Shin Mutsuya, “The Latest Technology of Digital Paper” (CMMC, issued on November 30, 2001, pages 11-14) Supervised by Nobu Mutsuya, “Latest Technology and Applications of Electronic Paper” (CMC, issued July 30, 2004, pages 184-186)

In view of the above-described conventional problems and current situation, the present invention intends to solve this problem, and can easily display an arbitrary display at an arbitrary position, and can have a color variation. An object of the present invention is to provide an information display device suitable for advertising display media such as POP and electronic display media that can effectively attract the viewer's line of sight and interest.

  As a result of intensive studies on the above-described problems of the prior art, the present inventors have at least a base material layer having a specific structure, an electrode layer capable of supplying power disposed on the base material layer, and the electrode layer. A display medium having a specific structure that can be attached and detached, and a layer having a specific structure disposed on a surface opposite to the surface in contact with the electrode layer of the display medium. The present invention has been completed.

That is, the present invention resides in the following (1) to (5).
(1) At least an insulating base material layer, an electrode layer capable of supplying power disposed on the base material layer, display can be switched by receiving power supply from the electrode layer, and the electrode An information display device comprising: a display medium that can be attached to and detached from a layer; and a light-transmissive insulating layer that is disposed on a surface opposite to the surface in contact with the electrode layer of the display medium.
(2) The information display device according to (1), wherein the electrode layer capable of supplying power is detachable.
(3) The information display device according to (1) or (2), wherein the insulating base layer and the electrode layer capable of supplying power are light transmissive.
(4) A display medium is a substrate on which a contact for receiving power supply from an electrode layer capable of supplying power, a light-transmitting electrode formed on a transparent front plate, and an electrode formed on a back plate are arranged to face each other The information display device according to any one of (1) to (3) above, further comprising a display portion having a bistable display layer between the electrodes.
(5) The information display device according to any one of (1) to (4), wherein the display medium is formed of characters, graphics, symbols, or a combination thereof.

  According to the present invention, it is possible to easily display an arbitrary display at an arbitrary position and to have a color variation, so that a POP that can effectively attract the viewer's line of sight and interest effectively. An information display device suitable for an advertisement display medium such as an electronic display medium is provided.

It is a schematic perspective view which shows an example of the information display apparatus of this invention. (A) is schematic sectional drawing of the information display apparatus of FIG. 1, (b) is explanatory drawing to which a part of electrode layer was expanded. It is a fragmentary sectional view of a display medium. (A) And (b) is each explanatory drawing which shows each form in which the display medium in this invention consists of a character, a figure, a symbol, or these combination in a plane aspect. (A)-(f) is each explanatory drawing which shows other embodiment of an electrode layer in a plane aspect. The other example of the information display apparatus of this invention is shown, (a) is a schematic perspective view, (b) is a schematic sectional drawing. An example of the information display apparatus which used the information display apparatus of this invention for the POP advertisement is shown, (a) is a schematic perspective view, (b) is a schematic sectional drawing. It is a perspective view which shows the other example of the information display apparatus which used the information display apparatus of this invention for the POP advertisement.

Hereinafter, embodiments of the present invention will be described in detail.
1 to 4 show an embodiment of an information display device of the present invention, FIG. 1 is a schematic perspective view showing an example of the information display device, and FIG. 2A is the information display device of FIG. FIG. 3B is an explanatory diagram in which a part of the electrode layer is enlarged, FIG. 3 is a partial sectional view of the display medium, and FIGS. 4A and 4B are characters in the display medium according to the present invention. It is each explanatory drawing which shows each form which consists of a figure, a symbol, or these combination with a plane aspect.

The information display apparatus A of this embodiment is a board type, and includes a frame 1, and an insulating base material layer 10 is attached to the frame 1 as shown in FIG. 1.
As shown in FIGS. 1 and 2A, an electrode layer 11 capable of supplying power is disposed on the insulating base material layer 10, and power is supplied from the electrode layer 11 to the electrode layer 11. Display medium 20, 20... That can be switched to display by being supplied and can be attached to and detached from the electrode layer 11, and a surface opposite to the surface that contacts the electrode layer 11 of the display medium 20. In this structure, a light-transmissive insulating layer 40 is disposed.

The insulating substrate layer 10 is not particularly limited as long as it is an insulating substrate. For example, an insulating resin plate, an insulating resin film, a wooden plate, wood, an insulating-coated metal, rubber Examples include board, paper, cardboard, cloth, and ceramic board. The frame 1 can also be made of the same material as that of the insulating base layer 10, and the frame 1 and the insulating base layer 10 may be integrally formed.

The electrode layer 11 of the present embodiment is configured by directly forming an electrode (such as a conductive pattern made of a metal layer) directly on the insulating base layer 10 or on a sheet body such as a resin. Or an electrode sheet on which a conductive pattern (electrode part) is formed.
Although not shown, the electrode layer 11 is connected to a power source provided in a frame or the like. Note that the power supply unit has a switch unit, and in this embodiment includes a dry cell (4 AA) and a booster circuit, and the voltage is 50V.

  The pattern of the electrode part 11 is not particularly limited, and can vary depending on the display method of the display medium. For example, as shown in FIG. It can be produced by alternately forming electrodes (patterns made of a conductive metal layer such as copper, +,-) directly on the base material layer.

As shown in FIG. 3, the display medium 20 includes a light-transmitting electrode 22 formed on a transparent front plate 21 and a substrate electrode 22 in which an electrode 24 formed on the back plate 23 is opposed to a rib 25. The display unit 30 is provided with a bistable display layer 26 between 24 and a light transmitting part 31 and a light non-transmitting part 32 on the surface of the front plate 21.
The transparent front plate 21 of the display medium 20 can be used without particular limitation as long as it has a light transmitting property so as to be a display surface as a bistable display device. For example, it may be transparent and excellent in visibility, heat resistance, weather resistance, non-shrinkage, and excellent in mechanical strength, chemical resistance, etc., for example, inorganic substances such as glass, polymethyl methacrylate, polystyrene or Copolymer of styrene and acrylonitrile or methyl methacrylate, poly (4-methylpentene-1), polypropylene, cycloolefin, cyclopentane, tetracyclododecane, or other cyclic olefin monomers alone or copolymerization of ethylene Examples include olefin polymers, polyethylene terephthalate, polyethylene naphthalate, polyarylate, polyethersulfone, polycarbonate, thermoplastic resins such as various liquid crystalline polymers, acrylic, urethane, epoxy, and silicone thermosetting transparent resins. It is done. Two or more of these may be used in combination.

Specifically, the transparent front plate 21 is made of an electrophoretic display liquid, an electropowder fluid (registered trademark, the same shall apply hereinafter) or a memory liquid crystal composition that constitutes the bistable display layer 26. A material that does not dissolve or change quality, and an optimum material can be selected according to chemical and physical characteristics. The transparent front plate 21 is preferably made of a material that suppresses or prevents the volatilization of the dispersion medium in the electrophoretic display liquid used for the bistable display layer 26 and the permeation of air, moisture, and the like.
Further, a gas barrier film such as polyvinyl alcohol or polyethylene vinyl alcohol is applied to the transparent front plate 21 by a laminating method or the like for the purpose of highly suppressing / preventing volatilization of the dispersion medium and permeation of air, moisture and the like. It is also possible to use a combination of resin films such as polyvinyl butyral for the purpose of preventing the glass from being laminated or being scattered.

Examples of the light transmissive electrode 22 formed on the transparent front plate 21 include an electrode formed using a transparent electrode material such as ITO or IZO.
The light transmissive electrode 22 may be formed by applying a transparent conductive material such as ITO to a transparent resin film such as PET or transparent glass, for example, by a deposition method such as a coating method, an ion plating method, or a sputtering method. it can. The light transmissive electrode 22 is preferably a so-called solid electrode formed uniformly over the entire front plate 21 in terms of cost, but has been conventionally used such as photoetching. This does not preclude the use of a pattern-formed product. The electrode configuration of the front plate 21 can be appropriately combined or selected according to the electrode configuration of the back plate 23.

  As with the front plate, the back plate 23 prevents leakage of electrophoretic display liquid, electropowder fluid, memory liquid crystal composition, etc. that constitutes the bistable display layer 26, and volatilization of the solvent. Although it will not specifically limit if it is a material which can be suppressed, For obtaining a thin bistable display device, for example, a thin back plate such as a resin film, a resin plate, a ceramic plate, or a metal plate may be used. desirable. The back plate 23 is also laminated with a gas barrier film such as polyvinyl alcohol or polyethylene vinyl alcohol by a laminating method or the like for the purpose of highly suppressing or preventing the volatilization of the dispersion medium and the permeation of air, moisture and the like. Can be used. The back plate 23 has an opaque structure, unlike the transparent plate of the second embodiment described later.

The electrode 24 formed on the back plate 23 is formed by forming a transparent conductive material such as ITO by an evaporation method such as a coating method, an ion plating method, a sputtering method, or the like, similar to the electrode on the front plate. These metal materials can be formed by vapor deposition or by attaching a metal film or the like. Further, the substrate 23 on which the electrode 24 is formed does not prevent the use of a TFT (Thin Film Transistor) substrate used in liquid crystal or the like, but is a so-called solid electrode that can be manufactured at low cost. It is preferable.
Furthermore, in order to realize white display with high reflectivity, the visible light transmittance is 80% or more in a state where the transparent electrode 22 is formed on the transparent front plate 21, preferably 90% or more is particularly desirable.

A magnet material 27 is fixed to the back plate 23. With this magnet material 27, the display medium 20 can be freely attached to and detached from the insulating base material layer 10 to be a display board. In addition, as the base material layer 10, an insulating base material layer 10 made of a ferromagnetic material or the like so as to be detachable from the magnet material 27, for example, an iron thin plate is incorporated in a wood block. A base material layer, an iron plate with insulating coating, or the like can be used.
Further, the back plate 23 is provided with contacts (extraction electrodes) 28 that are connected to the electrodes 22 and 24 of the display medium by receiving power supply from an electrode portion of the electrode layer 11 made of a transparent electrode sheet.

As shown in FIG. 3, the display medium 20 of the present embodiment has a light transmitting electrode 22 formed on a transparent front plate 21 and an electrode 24 formed on a back plate 23 arranged opposite to each other with ribs 25. A sheet-shaped display unit 30 having a light transmission unit 31 and a light non-transmission unit 32 is disposed on the surface of the front plate 21 and is configured by enclosing the bistable display layer 26 between the electrode substrates. It is constituted by.
The electrode substrates are opposed to each other by ribs 25 and the like so as to prevent short-circuiting due to contact between the electrodes and to maintain a constant electrode substrate interval in order to obtain a uniform display without unevenness. That is, the distance between the electrode substrates arranged opposite to each other is made constant by the ribs 25 and the like so as to keep the distance constant by various methods used in conventionally known liquid crystal and electrophoretic display devices. Configured to keep on. In addition, a spacer member having a certain height is set up on one electrode substrate by a photolithographic method or a nanoimprint method, and then the electrode substrate interval is kept constant by attaching the other electrode substrate. Can be configured.

The bistable display layer 26 is not particularly limited as long as it forms a bistable (bi-stable) display layer. For example, the bistable display layer 26 is composed of an electrophoretic display liquid (including an electropowder fluid). And a bistable display layer composed of a memory liquid crystal composition or the like.
The electrophoretic display liquid is not particularly limited as long as it contains a conventionally used electrophoretic display liquid, for example, at least one type of electrophoretic particles and a dispersion medium. .
As the electrophoretic particles used in the electrophoretic display liquid, for example, colored or colorless (white) inorganic pigment particles, organic pigment particles, polymer fine particles, and the like can be used. A mixture of seeds or more can be used. Moreover, the fine particle by which the lipophilic surface treatment was carried out may be sufficient. Preferably, those having an average particle diameter of 0.05 to 20 μm are used, and those having an average particle diameter of 0.1 to 10 μm are particularly preferable. The total content of these fine particles is preferably 3 to 50% by weight (hereinafter simply referred to as “%”), more preferably 5 to 40% with respect to the total amount of the liquid for electrophoretic display. Is desirable.

As the dispersion medium, for example, various types used in conventional electrophoretic display can be used. Specifically, aliphatic hydrocarbons such as aromatic hydrocarbons, hexane, cyclohexane, kerosene, isopar, paraffin hydrocarbons, halogenated hydrocarbons, phosphate esters, phthalate esters, carboxylate esters , Chlorinated paraffin, N, N-dibutyl-2-butoxy-5-tertioctylaniline, and the like, but are not limited thereto. The content of these dispersion mediums is appropriately determined depending on the electrophoretic particles and the type of dispersant used, but is preferably contained so as to be 25 to 85% with respect to the total amount of the electrophoretic display liquid. More preferably, it is 30 to 60%. In addition, various oil-soluble dyes can be dissolved and colored in the dispersion medium. In addition to the liquid type, the electrophoretic display liquid may be an electropowder fluid having a high response speed in which the electrophoretic particles move in the air.
Furthermore, a dispersant can be appropriately added to the electrophoretic display liquid. Examples of the dispersant used include various commonly used dispersants, surfactants and polymer surfactants such as , Nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, polymer surfactants, and the like, but are not limited thereto. The content of these dispersants is appropriately determined depending on the electrophoretic particles and solvent type to be used, but may be contained so as to be 0.01 to 20.0% with respect to the total amount of the electrophoretic display liquid. Preferably, it is desirable to contain it so that it may become 0.5 to 10%.

In addition, the liquid crystal composition (device) that constitutes the bistable display layer is composed of nematic liquid crystal, cholesteric liquid crystal, smectic liquid crystal composition having a memory function that maintains the display even when the power is turned off. There is no particular limitation as long as it is configured. For example, a ferroelectric liquid crystal (FLC, smectic liquid crystal), a bistable display layer with a driving voltage of 5 V and a substrate spacing of about 1.7 μm using an inorganic alignment film can be used.
The bistable display layer 26 in the bistable display medium 20 of the present embodiment includes, for example, negatively charged white electrophoretic particles (titanium oxide particles), positively charged black particles (resin particles colored with carbon black), The display liquid for electrophoresis contains a dispersant and a dispersion medium.

Further, on the surface of the front plate 21, as shown in FIG. 4, a sheet-like display unit 30 having a light transmission unit 31 and a light non-transmission unit 32 is directly attached or detachably disposed.
Examples of a method for producing the display unit 30 include: 1) Transparent PET, vinyl chloride, polycarbonate or other resin film, transparent glass or other light transmissive sheet or plate member, inkjet printing, laser printer A method of forming a light non-transmissive portion by using a printing method such as printing, screen printing, or gravure printing. 2) Light non-transmission with a metal material using a vapor deposition method such as sputtering on the light transmissive sheet-like member. A method of forming a part, or 3) forming a mark such as a character, a figure, etc. by punching or cutting a light-opaque sheet such as colored PET, vinyl chloride resin film, paper, etc. The method of creating by the method of arrange | positioning to the said light transmissive sheet | seat member so that adhesion or attachment is possible is mentioned.
In the present embodiment, the light non-transmissive portion 32 is formed by ink jet printing, and the light transmissive portion 31 is configured to be the alphabet letter “O”. Similarly, display media 20 of “P”, “E”, and “N” can be produced. FIG. 1 shows a state in which these “O”, “P”, “E”, and “N” display media 20 are mounted on the electrode layer 11.

In the present embodiment, the alpha-bed letters “O”, “P”, “E”, and “N” display media 20 having the above-described configuration are arbitrarily set on the base material layer 10 and the electrode layer 11 serving as display boards. It is mounted and placed at the location. Further, in order to protect the display medium 20 and the electrode layer 11 and further improve the display performance of the display medium and further increase the safety, the surface of the display medium 20 opposite to the surface in contact with the electrode layer 11 is A light transmissive insulating layer 40 is disposed. The display medium 20 and the electrode layer 11 are protected by the light transmissive insulating layer 40.
The light-transmitting insulating layer 40 may be transparent, excellent in visibility and insulating, and more preferably excellent in heat resistance, weather resistance, non-shrinkage, mechanical strength, and the like. For example, it can be composed of PET, PC, acrylic, PVC, PEN, PES, AS, PE, PP, glass, etc. In this embodiment, it is composed of acrylic.

In the information display device A configured as described above, the display media 20 of the alphabetic characters “O”, “P”, “E”, and “N” are placed on the insulating base material layer 10 serving as a display board. By attaching the magnetic medium (magnetic material 27 of the display medium 20 and the base material layer 10 having a ferromagnetic material) to any place of the display medium, and covering each display medium 20 and the electrode layer 11 with a light-transmissive insulating layer 40 Set.
In this information display device A, each display medium 20 (“O”, “P”, “E”, “N” provided at an arbitrary position on the insulating base layer 10 and the electrode layer 11 serving as a display board. ")" Is set to "ON" by a switch section (not shown) provided in the frame section or the like, so that power is supplied from the power supply section to the electrode layer 11 and the contact point (extraction electrode) 28 of the display medium 20 is energized for display. The medium 20 is driven. In this embodiment, power is supplied while intermittently inverting ± to the electrode layer 11 intermittently, so that the viewer blinks “O”, “P”, “E”, and “N” of the display medium 20. It can be recognized by the state.

In the present embodiment, for example, black and white display is performed between the light-transmitting electrode 22 formed on the transparent front plate 21 and the substrate electrode in which the electrode 24 formed on the back plate 23 is opposed to each other by a rib 25 or the like. The bistable display layer 26 is provided, and a light transmitting portion 31 and a light non-transmitting portion 32 are provided on the surface of the front plate 21 opposite to the surface on which the light transmitting electrode 22 is formed. The display unit 30, specifically, a light non-transmission unit 32 that displays the light transmission part on the light transmission sheet-like member (PET film or the like) by inkjet printing so that the light transmission part becomes “O” character. In this case, the light transmitting portion that displays the letter “O” is clearly displayed in white and is clearly recognized. On the other hand, in the case of black display, the black light is not transmitted. Part 32 of light transmission part 31 So that the less visible will be assimilated into the same order as. By alternately changing the white display and the black display, at least one of the board surfaces becomes a display with an impact of “OPEN”, which is information suitable as a display device that can attract the viewer's line of sight and interest. A display device is obtained.
The information display device according to the present invention includes a display board at a storefront, a display board for hanging on a wall, a counter advertisement at a storefront, for example, a rack advertisement, a message board at a station or an airport, a welcome at a hotel or an inn, etc. The present invention may be used for an information display device such as a board and a display device for conveyance.

In the above embodiment, four display media 20 of “O”, “P”, “E”, and “N” are used. However, a specific shape, for example, an alpha bed character (A shown in FIG. ~ T, etc.), each display medium 20 made up of pictograms, symbols, etc., and the punched-out type alpha-bed characters, hiragana characters shown in FIG. "New store opening", "XXXXX Corporation" characters, "Logo", "Company name", "Discount", "Day of the week", "Opening", "Dot", "Tile shape" If each display medium 20 such as "" is prepared and prepared in advance, marks such as various characters are attached to the base material layer 10 serving as a display board according to the application and the sales situation at that time. Display with high impact. Note that the cut-through type alpha bed character is a type in which the display layer 26 of the display medium 20 is a character without using the display unit 30 having the light transmission part 31 and the light non-transmission part 32.
In addition, by changing the display mode (variation) of the light non-transmissive portion 32 formed by printing or vapor deposition, the display content or the like can be easily changed, and the light non-transmissive portion 32 of the display portion 30 can be changed. If the color is composed of the viewer's line of sight such as red, yellow, blue, and green, and a chromatic color that draws interest, the viewer's line of sight and interest can be further attracted.
Furthermore, in the above embodiment, the bistable display layer 26 is a black and white display layer. However, by suitably combining fine particles such as colored particles of the display liquid for electrophoresis, red / white display, yellow / white display, etc. A combination of black and chromatic colors other than white, or a combination of chromatic colors other than white, such as red / black display and yellow / black display, may be used.

Moreover, in the said embodiment, although the electrode layer 11 was directly formed in the base material layer 10, even if it is a sheet-like electrode layer which can be attached or detached to the base material layer 10 which formed the conductive pattern in sheet bodies, such as resin. It ’s good.
Furthermore, the conductive pattern of the electrode layer 11 is not particularly limited, and can be varied depending on the display method of the display medium. In addition to FIG. 2B, for example, as shown in FIG. A form having two comb-like electrode layers that can mesh with the material layer 10 directly or on the sheet body without being in contact with each other, and can apply independent voltages to each other, as shown in FIG. 10 or directly on the sheet body, without contact with each other, the electrode layers are arranged in the lateral direction, as shown in FIG. 5 (c), contact each other directly on the substrate layer 10 or on the sheet body In the form in which the rectangular electrode layers are aligned in the vertical and horizontal directions without any contact, as shown in FIG. 5 (d), the diagonal electrode layers without contacting each other directly on the base material layer 10 or on the sheet body As shown in FIG. 5 (e), the substrate layers 10 are arranged directly in the diagonal direction. On the sheet body, the electrode layers are arranged in two upper and lower stages without being in contact with each other, as shown in FIG. 5 (f), meshed directly with the base material layer 10 or without being in contact with each other on the sheet body A configuration in which comb-like electrode layers capable of applying independent voltages to each other are arranged in parallel in the horizontal direction can be used. By using these electrode layers, the display (energization) mode of each display medium 20 can be displayed in various states.
In addition to using the material of the base material layer 10 as a display board as it is, the base material layer (insulating resin plate, insulating resin film, wooden plate, rubber plate, paper, cardboard, cloth, ceramic plate) ) If the color of the base material layer is changed to white, black, red, etc., or landscape pictures, other marks, etc. are displayed in 10 by painting, pigment inclusion, etc., it is compatible with the display of blinking display media, etc. Display with impact.

FIG. 6 shows another example of the information display device of the present invention, where (a) is a perspective view and (b) a schematic sectional view thereof. In the following embodiments, the same components as those in the above embodiments are denoted by the same reference numerals, and the description thereof is omitted.
The information display device B according to the present embodiment is provided with a support plate (back plate) 2 on the frame 1, a point where the insulating base layer 10 and the electrode layer 11 are transparent, and an insulating base layer 10. A poster or photo with a mark such as “Super XXX” or “Opening” printed on a print sheet such as paper between the base plate and the support plate (back plate) 2 depending on the application and display mode. The display sheet 35 which becomes layers, such as these, is arrange | positioned, and the back plate 23 of the display medium 20 differs only in the point which is transparent.

As the transparent insulating base material layer 10, a transparent insulating resin plate or an insulating resin film can be used. As the transparent electrode layer 11, a transparent insulating base material is used. Tier 1
A transparent electrode is formed directly on the transparent electrode material such as ITO or IZO on 0, or it is composed of a transparent electrode sheet in which an electrode using a transparent electrode material such as ITO or IZO is formed on a transparent film. be able to.
In the information display device B of the present embodiment, a transparent electrode is formed on a transparent film, and a back plate portion 2 is further attached, so that a poster, a photograph, or the like is provided between the transparent base material layer 10 and the back plate 2. By further providing the display sheet 35, not only the display medium 20 can be freely arranged, but also the color and picture of the area where the display medium 20 is not arranged can be freely changed, which is more suitable for POP and the like. An information display device capable of displaying various displays.

According to the information display apparatus B of the present embodiment, the line of sight of the viewer in combination with the blinking display of the four display media 20 of “O”, “P”, “E”, and “N”, the display content of the display sheet 35, and the like. , It can be a display mode having an interesting impact.
Further, since the display sheet 35 can be freely mounted between the insulating base material layer 10 serving as a display board and the back plate 2, the display content of the display sheet 35 is popular and meets the consumer needs at that time. By changing to the advertisement content or the like, the information display device B can be a variety of variations.

FIG. 7 shows an example of an information display device in which the information display device of the present invention is used for a POP advertisement, wherein (a) is a perspective view and (b) is a schematic cross-sectional view thereof.
The information display device C includes leg portions 3, 3,... And frame portions 4, 4, and a support body 6 having a structure in which the frame portions 4, 4 are connected to each other at the upper portion and can be folded (opened and closed). The display surface of the display medium can be displayed on the front side and the back side in two planes or only on the front side. In this embodiment, only the front side has a display medium, and a display sheet such as advertising paper can be attached to the back side.

As shown in FIGS. 1 and 2A, on the display board 10 serving as the insulating base layer, as shown in FIGS. 1 and 2A, the electrode layer 11 capable of supplying power, the display medium 20, and the light transmission The insulating insulating layer 40 is disposed.
In the information display device C of the present embodiment, an information display device suitable for POP advertising can be easily arranged even in a narrow space, such as counter advertisements at stores, message boards at stations or airports, hotels, inns, etc. It is possible to provide an information display device that is most suitable for a welcome board.

FIG. 8 is a perspective view showing another example of the information display device using the information display device of the present invention for the POP advertisement.
The information display device D of the present embodiment includes seven display media 20 of “w”, “e”, “l”, “c”, “o”, “m”, and “e”, and a single display medium 20 that includes the characters “OPEN”. Each display medium 20 which is various display modes of the dod-shaped display medium 20 is attached, and each of them is energized in a relay state to form a flashing display.

The information display device of the present invention is configured as described above and has various display modes. However, the present invention is not limited to the above-described embodiment, and various changes can be made within the scope of the technical idea of the present invention. it can.
For example, in the above embodiment, the display medium 20 is attached to an arbitrary place on the electrode layer 11 by magnetic force means (the magnetic material 27 of the display medium 20 and the base material layer 10 having a ferromagnetic material). The display medium can be applied to the electrode layer 11 by an adhesive means such as an adhesive made of an acrylic, epoxy, synthetic rubber, polyurethane, or the like that can be repeatedly removed from the electrode layer 11 or an adsorbent having fine holes. The display medium may be detachable, or the display medium may be detachably attached to the electrode layer 11 by a fitting means provided with a recess that allows the display medium 20 to be detachably attached to the electrode layer 11. . By using these adhesion means and fitting means, the ferromagnetic material of the base material layer 10 which becomes a display board can be omitted.
Further, in the information display devices C and D used for the POP advertisement, the support plate (back plate) 2 is provided on the support 6 in the same manner as the information display device B of the above embodiment, and the insulating base material layer 10 and The electrode layer 11 is transparent, and a mark such as “Super XXX” or “Opening” between the insulating base material layer 10 and the support plate (back plate) 2 depending on the application or display mode. It is also possible to arrange a poster or a display sheet 35 that is a layer of a photograph or the like printed on a print sheet such as paper.

  Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples.

[Conforms to Example 1, FIG. 1 and FIG. 2]
Manufacture of frame body 1: Manufactured with a wooden square.
Production of insulating base material layer 10: produced by cutting a Lauan veneer plate (t = 5 mm).
Production of electrode layer 11: produced by cutting an iron plate (Zn plating, t = 0.3 mm).
Production of light-transmissive insulating layer 40: produced by cutting an acrylic plate (Mitsubishi Rayon Co., Acrylite, t = 3 mm)

The display medium 20 was obtained by the following steps.
1) Substrates 21 and 23 used
Front plate 21, back plate 23: PET film (100 μm)
Distance between substrates: 50 μm
2) Used electrode Front electrode: ITO (100Ω / □)
A front electrode was formed on the front plate 10 by sputtering.
Back electrode: Aluminum foil Magnet material: Plate magnet (t = 2mm)
Contact: Copper thin film with adhesive layer 3) Preparation of electrophoretic display liquid An electrophoretic display liquid having the following composition was used.
Black particles: Carbon black-encapsulated acrylic particles 10 parts by weight White particles: Titanium oxide particles lipophilically treated with a titanium coupling agent 20 parts by weight Dispersant: Sorbitan triolate 3 parts by weight Nymeen L-201 [hydroxyethyl laurylamine, Nippon Oil & Fats (Made by company)
3 parts by weight Dispersion medium: normal paraffin (manufactured by Nippon Oil Co., Ltd.) 30 parts by weight SAS296 (diallyl alkane, manufactured by Nippon Petrochemical Co., Ltd.) 34 parts by weight

4) Production of the display unit 30 having the light transmission part 31 and the light non-transmission part 32 The light non-transmission part 32 is printed on the transparent PET film having a thickness of 100 μm by white ink using inkjet printing, and the rest is the light transmission part. A letter “O” of 31 was created. Similarly, “P”, “E”, and “N” were created.
5) Fabrication of display medium 20 The front plate with electrodes and the back plate with electrodes are formed in a frame shape with one side left by laser processing of a PET film having a thickness of 50 μm, and a square opening having a line / space of 50 μm / 500 μm is formed. A bistable display medium was produced by placing the electrophoretic display liquid prepared in the above-mentioned composition in this space so as to face each other via a spacer. A UV curable material was used for the seal portion. The display part 30 having the light transmission part 31 and the light non-transmission part 32 was adhered to the bistable display medium with a transparent acrylic adhesive.
As the adhesive layer, an acrylic ester-based slightly tacky adhesive was used.
6) Production of Information Display Device Each of the display media 20 of “O”, “P”, “E”, and “N” was attached to an arbitrary place on the display board shown in FIG.

  For the display device obtained in Example 1, the voltage of +50 V or −50 V was applied to the transparent electrode sheet 14 and the voltage application was changed alternately at intervals of 15 seconds. When the display state becomes white, the display content of the light non-transmissive portion 32 becomes difficult to see. On the other hand, when the display state becomes black, “O”, “P”, “E”, “N” are clearly displayed. It has been found that an information display device suitable as a three-dimensional display device capable of attracting the viewer's line of sight and interest can be obtained by repeatedly changing the display state.

[Conforms to Example 2, FIGS. 1 and 2]
In Example 1, the insulating base material layer 10 is formed by laminating a Lavan veneer plate (t = 3 mm), a coated iron plate (t = 0.3 mm), and a PET thin film (t = 125 μm) and cutting. A display device was manufactured in the same manner as in Example 1 except that the electrode layer 11 was formed by patterning and cutting indium oxide by an etching method.

  For the display device obtained in Example 2, the voltage of +50 V or −50 V was applied to the transparent electrode sheet 14 and the voltage application was changed alternately at intervals of 15 seconds. When the display state becomes white, the display content of the light non-transmissive portion 32 becomes difficult to see. On the other hand, when the display state becomes black, “O”, “P”, “E”, “N” are clearly displayed. It has been found that an information display device suitable as a three-dimensional display device capable of attracting the viewer's line of sight and interest can be obtained by repeatedly changing the display state.

A Information display device 10 Insulating base material layer 11 Electrode layer 20 Display medium 21 Front plate 22 Electrode 23 Back plate 24 Electrode 30 Display unit 31 Light transmitting unit 32 Light non-transmitting unit 40 Light transmitting insulating layer

Claims (3)

At least an insulating base material layer provided on the support plate, an electrode layer that can be supplied with electric power disposed on the base material layer, can be switched to display by receiving electric power supply from the electrode layer, and a display medium capable anywhere is detachable to said electrode layer, with the surface in contact with the electrode layer of the display medium and an opposite light transmitting insulating layer disposed on the surface of the The insulating base layer and the electrode layer capable of supplying power are light transmissive, and a display sheet that can be mounted between the support plate and the insulating base layer is disposed. Display device. The display medium includes a contact for receiving power supply from an electrode layer capable of supplying power, a light-transmitting electrode formed on a transparent front plate, and a substrate electrode on which the electrodes formed on the back plate are arranged to face each other. The information display device according to claim 1, further comprising a display unit having a bistable display layer. 3. The information display device according to claim 1, wherein the display medium is composed of characters, figures, symbols, or a combination thereof.

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