JP2003345258A - Thin information display medium having flexibility and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin information display medium which has flexibility, does not require a long time for cutting and removing unnecessary portions for exposure of electrode sections in manufacturing to form discrete products by multiple imposition and prevents the failure of the electrode sections during removing the unnecessary portions and a method for manufacturing the same. <P>SOLUTION: The thin information display medium which has the flexibility, is formed by applying transparent electrode layers 12a, circumferential sealing sections 12b thereof and the electrode sections 7 on a web-ike base material film 10, forming a conductive easy release layer 13 on the sections and the electrode sections, and laminating a cover film 16 through an image display layer 14, an electrode layer 11a and an adhesive layer 15 over the entire surface. Half cuts SL are inscribed over the entire periphery of the image display layer to form the discrete products down to the image display layer 14 from the cover film 16 side and half cuts BL are formed down to the easy release layer 13 to the shapes to be separated to the discrete products. The method for manufacturing the same is provided. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin and flexible information display medium for displaying information on a hanging or wall surface of a train or bus, or a bulletin board at a store, a station, etc., and a method of manufacturing the same. In particular, the present invention relates to a thin and flexible information display medium which is made into individual products by being multi-faced to a continuous web-shaped thin and flexible information display medium, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, hanging or pasting a paper medium printed with various information such as advertisements and exhibition events on the wall of a train or bus, or on the wall surface of a station, or by using a liquid crystal display It is displayed electronically.

However, in the case of using a paper medium on which the above information is printed, in order to switch this information, the work of suspending or peeling off this information and replacing it with a new paper medium is carried out manually, and this is a human operation. This requires time and labor for the work, and in addition to the cost, in the case of a moving vehicle, it is necessary to work at midnight or early morning when there are no passengers, or it has expired. However, there is a problem that it is left as it is.

In addition, in the method of electronically displaying the display contents using the above liquid crystal display, for example, in order to install this, it is not possible to place it on a curved surface or suspend it.
There are problems that the installation place is limited, or that the installation is bulky and difficult to carry.

In order to solve the above problems in recent years, for example, as disclosed in JP-A-11-502950, an electrode layer, a dye material and a dissolved substance are included on a base film. There is an electronic book having an image display layer of microcapsules and a plurality of page displays using a thin and flexible information display medium on which a transparent electrode layer is formed.

The thin and flexible information display medium is manufactured by, for example, as shown in the side sectional view of FIG.
On a web-shaped substrate (5) made of paper or plastic,
An electrode layer (11a) is formed, on which an image display layer (14) composed of microcapsules, a transparent electrode layer (12a),
A web-shaped thin and flexible information display medium (2) having a protective layer (17) formed in order on the outermost surface.

Using the web-shaped thin and flexible information display medium (2) manufactured as described above, an electrode part (shown in the front view of FIG. 12) is continuously cut from the protective layer (17) side shown in FIG.
Subsequently, in a separate step, unnecessary portions (protective layer, transparent electrode layer, image display layer) on the electrode portion (7) are removed by laser, and the exposed electrode portion (7) is continuously formed, It was an individual product.

However, in the method of cutting the entire circumference and exposing the electrode portion (7) by the above laser, it takes a lot of time to cut the entire circumference and remove the unnecessary portion to expose the electrode portion (7). In particular, when the removed part (peripheral seal part, etc.) is required on the entire circumference, the productivity is markedly deteriorated, and each layer (electrode layer, image display layer, transparent electrode layer, etc.) which is the preceding step is formed. Since there is a large difference in the processing time with, there was no choice but to perform cutting processing on another line. Furthermore, when removing the unnecessary portion, it is difficult to control the energy (laser) and control the variation of each layer in the formation of each layer which is the previous step, and damage the electrode layer (11a), resulting in a defective product. There was a problem of becoming.

As a method of cutting the entire circumference and exposing the electrode portion (7), the web-shaped thin and flexible information display medium (2) produced as described above is used. A separate line is formed into a shape including the electrode portion (7) as shown in the front view of FIG.
7) is continuously cut with a vibration cutting blade from the side, and subsequently, in a separate step, unnecessary portions (protective layer, transparent electrode layer, image display layer) on the electrode portion (7) are removed with a milling cutting blade, The exposed electrode part (7) was continuously formed to be an individual product.

However, in the method of cutting the entire circumference by the vibration cutting blade and exposing the electrode portion (7) by the milling cutting blade, the cutting of the entire circumference and the unnecessary portion are removed to expose the electrode portion (7). The time required for processing can be slightly reduced as compared with the method using the above laser, but productivity is inferior especially when a removed portion (peripheral sealing portion, etc.) is required on the entire circumference, and each layer which is the preceding step Since the processing time difference from the formation of (electrode layer, image display layer, transparent electrode layer, etc.) is large, there is no choice but to perform cutting processing on a separate line, which causes a problem in productivity, and further, the above-mentioned unnecessary portion Even if the unnecessary portion is removed without damaging the surface of the electrode portion (7) by detecting the electrode portion (7) or controlling the thickness from the surface when removing the layer, each layer in the formation of each layer in the previous step Is difficult to manage the variations, there is a problem that becomes more electrode layer (11a) defective products or damaged.

[0011]

SUMMARY OF THE INVENTION The present invention is to solve the problems of the prior art, and the problem is that it can be installed on a curved surface or can be suspended and installed. Is a thin and flexible information display medium that does not require human labor for switching information provision, and is used in the manufacture of individual products by multi-face attachment from a web-shaped thin and flexible information display medium. It does not take a long time to cut the entire circumference and remove unnecessary parts due to the exposure of the electrode part and the peripheral seal part at the peripheral edge part, and the electrode layer, the image display layer, etc. are formed on the base material film in the previous step. To provide a thin and flexible information display medium which can be cut and processed in-line and processed in-line, and which does not become a defective product due to damage to an electrode portion when removing an unnecessary portion, and a manufacturing method thereof. is there.

[0012]

In order to achieve the above object in the present invention, first, in the invention of claim 1, at least an electrode layer and an image display layer are provided on a base film, and the periphery is provided. A thin and flexible information display medium having an electrode portion at an end thereof, wherein an electrode layer is formed on a web-shaped base film, and an electrode portion and a peripheral seal portion at a peripheral end portion of the electrode layer are formed. An easily peelable layer is formed on a corresponding portion, an image display layer is formed on the entire surface including the easily peelable layer, and a cover film is laminated on the image display layer via an adhesive layer,
From the cover film side, half cuts are engraved up to the image display layer over the entire circumference of the image display layer to be an individual product, and from the base film side, the electrode portion at the peripheral end and the peripheral seal portion are included. The thin and flexible information display medium is characterized in that a half-cut is formed in a shape to be separated into individual products up to the easily peelable layer.

According to the first aspect of the present invention, the half cut is engraved from the cover film side over the entire circumference, and the easily peelable layer is provided on the electrode portion and the peripheral seal portion at the peripheral end portion thereof. The exposure of the electrode part (removal of unnecessary parts) is easily done in a short time by peeling off the cover film, and unlike the conventional removal of unnecessary parts by laser or milling cutting blade, the thickness of the image display layer etc. Therefore, the information display medium can be a thin and flexible information display medium having no defective products due to breakage of the electrode portion or the like. Therefore, it is not necessary to remove the unnecessary portion at the time of cutting (separation), so the half-cut processing for that can be performed in-line with the formation of the electrode layer, the image display layer, etc., which is the previous step, and it is excellent in productivity. The information display medium can be thin and flexible.

According to a second aspect of the invention, the thin and flexible information display medium according to the first aspect is characterized in that the easily peelable layer is formed of a conductive release agent. It is a thing.

According to the second aspect of the present invention, since the easily peelable layer provided on the electrode portion has conductivity, the characteristics of the electrode portion can be obtained even if the electrode portion is not completely exposed. It is possible to provide a thin and flexible information display medium that can be held and also has a role of protecting the electrode portion.

Further, in the invention of claim 3, the thin and flexible information display medium according to claim 1 or 2, characterized in that the cover film is connected at a portion facing the easily peelable layer. It is what

According to the third aspect of the invention, since the cover film is connected at the portion facing the easily peelable layer,
A thin and flexible information display medium can be provided in which the electrode part and the peripheral seal part can be exposed (removal of unnecessary parts) easily while winding the cover film that is connected.

Further, according to the invention of claim 4, a thin and flexible information display medium is provided in which at least an electrode layer and an image display layer are provided on a base film, and electrode portions are provided at peripheral edges. In the manufacturing method of, on the running web-shaped substrate film, to form an electrode layer, to form an easily peelable layer in a portion corresponding to the electrode portion and the peripheral seal portion of the peripheral end of the electrode layer, Further, an image display layer is formed on the entire surface including the easily peelable layer, and a cover film is further laminated on the image display layer via an adhesive layer. From the cover film side, an image display layer to be an individual product is formed. Engraved half cut to the image display layer over the entire circumference of, from the substrate film side,
A method for manufacturing a thin and flexible information display medium, characterized in that a half cut is formed up to an easily peelable layer in a shape to be separated into individual products including an electrode part and a peripheral seal part at the peripheral edge part. It is what

According to the fourth aspect of the present invention, the cover film is half-cut from the entire circumference, and the easily peelable layer is provided on the electrode portion at the peripheral end and the peripheral seal portion. Exposing (removing unnecessary parts) can be easily done in a short time by peeling off the cover film. Unlike the conventional method of removing unnecessary parts with a laser or a milling cutting blade, an image display layer, etc. Since it is not affected by variations in the thickness of the information display medium, it is possible to provide a thin and flexible method of manufacturing an information display medium that does not become a defective product due to damage of the electrode portion or the like. Therefore, since it is not necessary to remove this unnecessary portion at the time of cutting (separation), the half-cut processing for that purpose can be performed in-line with the formation of the electrode layer, the image display layer, etc., which is the previous step, thus improving productivity. It is possible to provide a method of manufacturing an information display medium having excellent thinness and flexibility.

According to the invention of claim 5, the easily peelable layer is formed of a conductive release agent, and the thin and flexible information display medium according to claim 4 is manufactured. It is a method.

According to the fifth aspect of the present invention, since the easily peelable layer provided on the electrode portion is electrically conductive, the characteristics as an electrode portion can be provided without completely exposing the electrode portion. In addition, it is possible to provide a thin and flexible method of manufacturing an information display medium which can also serve to protect the electrode portion during half-cutting and after exposure.

Further, in the invention of claim 6, the cover film is connected at a portion facing the easily peelable layer, and the thin and flexible information display medium according to claim 4 or 5. The manufacturing method is as follows.

According to the sixth aspect of the invention, since the cover film is connected at the portion facing the easily peelable layer, the exposure of the electrode portion and the peripheral seal portion (removal of an unnecessary portion) is prevented.
It is possible to provide a method for manufacturing a thin and flexible information display medium which can be easily carried out while winding a connected cover film.

Further, in the invention of claim 7, the thin and flexible information display medium which is the individual product is arranged in a single row or in a running direction of the web-shaped thin and flexible information display medium. The method for manufacturing a thin and flexible information display medium according to claim 4, 5 or 6, wherein the information display medium is formed in a plurality of rows by multiple imposition.

According to the seventh aspect of the present invention, since the web-shaped thin and flexible information display medium is formed in a single row or a plurality of rows in the traveling direction, the individual products can be efficiently produced. A method of manufacturing a thin and flexible information display medium that can be produced can be provided.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing an example of an individual product of the thin and flexible information display medium of the present invention, and FIGS. 2 to 8 show the thin and flexible information display medium of the present invention. It is explanatory drawing which shows an example of the process which concerns on a manufacturing method. 9 to 11 are explanatory views of an example of display forms of the image display layer that constitutes the thin and flexible information display medium of the present invention.

The present invention relates to a thin and flexible information display medium for displaying information and a method for manufacturing the same, for example, a front view of FIG. 1A and its B.
As shown in the side sectional view of FIG. 1 (b) as the -B side, a transparent electrode layer (12a) is applied on a base film (10), and an image display layer (14) is provided on the transparent electrode layer (14). (12
b) and the peripheral end portion of the electrode portion (7) and the margin portion (not shown) are provided, and the transparent electrode layer (12a) is provided on the image display layer (14). More specifically, the present invention relates to a flexible information display medium (1), and more particularly to a method for producing a continuous web-shaped thin and flexible information display medium by multi-faced processing into individual products.

To manufacture the thin and flexible information display medium of the present invention, first, the plan view of FIG.
As shown in the side sectional view of FIG.
For example, a wide web-like substrate film for traveling (10)
A transparent electrode layer (12a) is formed on the entire surface of the transparent electrode layer (12a), and an easily peelable layer (13) having conductivity is formed on the transparent electrode layer (12a) at a portion corresponding to an electrode portion at a peripheral end portion, a peripheral seal portion and a blank portion. ) Is partially applied to form two rows in the longitudinal direction (P).

As shown in FIG. 2 (a), the release layer (13) is provided with, for example, a register mark (RM) in white, which serves as a register mark for half-cutting with a laser or the like. You can also

Subsequently, as shown in the side sectional view of FIG. 3, an image display layer (14) is formed on the entire surface including the easily peelable layer (13) obtained above, and as shown in the side sectional view of FIG. Then, the electrode layer (11a) is applied to the entire surface of the image display layer (14). That is, in this case, the transparent electrode layer (12
It is the counter electrode for a).

Subsequently, as shown in the side sectional view of FIG. 5, a cover film (16) is bonded onto the electrode layer (11a) obtained above via an adhesive layer (15) to form a web-like shape. A thin and flexible information display medium (2) is produced.

The wide and web-like thin and flexible information display medium (2) obtained above is placed in the longitudinal direction (P), which is multi-faced, as shown in the plan view of FIG. In order to form a single row, the center and the edges in the width direction are slit by the slit line (L).

The web-shaped thin and flexible information display medium (2) slit in a single row is shown in the plan view of FIG. 7A and the BB plane of FIG. 7B. As shown in the side sectional view, for example, from the cover film (16) side, half cut from the cover film side over the entire circumference of a portion other than the peripheral seal portion and the electrode portion and the blank portion, that is, other than the easy peeling layer (13). (SL) is an easily peelable layer (1
3) surface, and at the same time, from the side of the substrate film (10), for example, as shown in the plan view of FIG. 8 (a) and the side sectional view of FIG. The base film has a shape corresponding to the seal portion (12b), the electrode portion (7), and a blank portion (12c) adjacent to the electrode portion (7), that is, a shape to be separated from individual products that are multi-faced. A half-cut (BL) from the side is engraved up to the easily peelable layer (13) to provide a single row of thin and flexible information display medium (2) on which multiple individual products are attached.

In order to make the web-like thin and flexible information display medium (2) obtained by the above half-cut processing into individual products, for example, the cover film (16) shown in FIG. 8 (b) is used. When pulling up, the surrounding seal (12
b) and the easy peeling layer (13) on the electrode part (7) and the blank part (12c) are connected by the cover film, so that the adhesive layer (15) is formed on the surface of the easy peeling layer (13). The electrode part (7) that is peeled off as an unnecessary portion together with the image display layer (14) through the film and is continuously and easily covered with the easy peeling layer (13) having conductivity is exposed, and this peeled cover film Are wound up and discarded. Then, dividing by half cut (BL) from the base film side,
A thin and flexible information display medium (1) having the electrode portion (7) exposed at the peripheral edge as shown in FIG. 1 can be obtained.

When the thin and flexible information display medium (1) obtained above is mounted on a wall or other equipment, the cover film (16) shown in FIG. 1 is attached to the adhesive layer (15).
The adhesive layer (15) can be peeled off from the surface and attached to a wall or another device. At this time, the adhesive layer (15) side of the cover film (16) needs to be adjusted in adhesive (or adhesive) strength by silicon treatment or the like so that it can be peeled off when necessary (for mounting). However, it must be at least larger than the adhesive strength (also referred to as peel strength) of the easily peelable layer (13).

Materials and the like relating to the thin and flexible information display medium (1) of the present invention will be described below with reference to examples. Examples of the cover film (16) according to the present invention include biaxially oriented polyethylene terephthalate (PET) and oriented polyethylene (OP) having a thickness of about 20 μm.
Films such as E), biaxially oriented polypropylene (OPP), oriented nylon (ONy), and ionomer (IO) can be mentioned, but biaxially oriented polyethylene terephthalate film is preferably used because of its various strengths and ease of handling.

The adhesive layer (15) may be, for example, a pressure-sensitive adhesive (adhesive) or a heat-sensitive adhesive in consideration of mounting, and the former pressure-sensitive adhesive may be, for example. Urethane resin adhesives, such as urethane prepolymer obtained by reacting a polyol and polyisocyanate in the presence of a catalyst such as hexahydrodimethylaniline, and a deterioration inhibitor, the polyol, polyester Polyols, polyether polyols and the like are used, and examples of the above polyisocyanates include aromatic polyisocyanates and aliphatic polyisocyanates. Examples of the aromatic polypolyisocyanates include tolylene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenylene. Polyisocyanate, Lysine diisocyanate, tolidine diisocyanate, naphthalene diisocyanate and the like are used. Furthermore, as the aliphatic polyisocyanate, for example, hexamethylene diisocyanate, isophorone diisocyanate, xylene diisocyanate, dicyclohexylmethane diisocyanate, etc. are used.

The latter heat-sensitive adhesive used as the adhesive layer (15) is, for example, linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE) or high-density polyethylene as a resin having excellent heat-sealing property. A polyolefin film having a thickness of about 50 μm made of (HDPE), unstretched polypropylene (CPP), or the like is preferably used, but the adhesive strength and the peel strength may not be balanced only with these polyolefin resins. For example, it is also possible to mix these polyolefin-based resins with polystyrene, polybutene, or the like, and mix an incompatible component with the polyolefin-based resins, and extrude a molten resin from these resins to form an easily peelable adhesive. It can also be used as the agent layer (15). Further, a hot melt adhesive made of ethylene-vinyl acetate copolymer resin, ethylene-acrylic acid copolymer resin or the like may be applied.

Further, the above-mentioned conductive easy peeling layer (1
As 3), there is an ink in which a conductive filler is dispersed in a release varnish. Examples of the release varnish include silicone / wax (polyethylene wax, etc.) as an additive to polyurethane / acrylic resin, polyamide resin, nitrocellulose resin. ) Is added in an amount of 5% or less, and as the conductive filler, carbon black,
Graphite or a metal powder such as Ag, Cu, or Ni can be used, and this ink can be partially applied by a screen printing method, a gravure printing method, or the like to form a conductive easy peeling layer (13). Furthermore, for example, a conductive resin obtained by dispersing the conductive filler in the presence of an organic solvent in a material in which 10% or less of silicon or wax (polyethylene wax, etc.) is added as an additive to a polyester resin having excellent flexibility as a binder. There is a conductive paste, and the conductive paste can be partially applied by a screen printing method or the like to form the conductive easy peeling layer (13).

As the base material film (10) constituting the thin and flexible information display medium (1) of the present invention, a transparent film made of substantially the same material as the cover film (16) is used. A biaxially stretched polyethylene terephthalate film is preferably used because it has various strengths and is easy to handle. However, in the case of the thin and flexible information display medium (1) observed from the base film (10) side as shown in FIG. 1 (b), for example, although not shown, the transparent electrode is on the cover film side. In the case of a thin and flexible information display medium which is used by adhering the adhesive layer to transparent glass or the like and used from the adhesive layer side, it is not necessary to be transparent, and conversely, an opaque and white film is preferable. It may be a suitable or white paper.

Furthermore, as the electrode layer (11a), for example, polyethylene terephthalate (PET),
An electrode film in which a conductive layer is formed on a plastic film having excellent dimensional stability, such as polyethylene naphthalate (PEN) or polyimide, is used, and the transparent electrode layer (12a) is polyethylene terephthalate (P).
ET), polyethylene naphthalate (PEN), polyimide, or other transparent electrode film in which an active matrix electrode, segment electrode, or simple matrix electrode is formed on a transparent plastic film having excellent dimensional stability is used.

As the image display layer (14), for example, an electroluminescent material, a polymer dispersion type liquid crystal,
It can be realized by combining a ferroelectric liquid crystal and a display body using a microcapsule electrophoretic method.

As a display body using the microcapsule type electrophoresis system in the above case, as an example of the microcapsule (110), for example, methacrylic acid resin, urea resin, gum arabic is shown as an example of the microcapsule (110). Etc. as a capsule shell (111), and white particles (113) made of titanium oxide and black particles (114) made of carbon black are dispersed in a highly viscous dispersion medium (112) such as silicone oil. It is enclosed. The white particles of titanium oxide are positively charged, while the black particles of carbon black are negatively charged.

Therefore, as shown in the schematic diagram of FIG.
When an electric field is applied to the transparent electrode layer (12a) and the electrode layer (11a) so that the transparent electrode layer (12a) becomes a negative electrode and the electrode layer (11a) becomes a positive electrode, positively charged white particles (113) are generated. Black particles (114) attracted to the transparent electrode layer (12a) side
Is drawn to the electrode layer (11a) side, the transparent electrode layer (1
When viewed from above on the 2a) side, the part appears white.

On the contrary, when the transparent electrode layer (12a) is the positive electrode and the electrode layer (11a) is the negative electrode, the positively charged white particles (113) are attracted to the electrode layer (11a) side and black. Since the particles (114) are attracted to the transparent electrode layer (12a) side,
When viewed from above the transparent electrode layer (12a) side, that portion looks black.

As shown in the schematic side sectional view of FIG. 11, the image display layer (14) has a large number of such microcapsules (110), and each address electrode of the transparent electrode layer (12a) is By controlling the electric field, desired characters or figures can be displayed as white and black pixels.

Further, the half cut (SL) from the cover film side shown in FIGS. 7 (a) and (b) and the half cut (BL from the base film side shown in FIGS. 8 (a) and 8 (b). The laser beam irradiation or the rotary die cutter is suitable for the continuous engraving of). For example, as the former laser beam irradiating means, as shown in FIG. 7B, a cover film (16), or FIG. As shown in b), any kind of laser light can be used as long as it can engrave a half cut on the base film (10) by laser light irradiation, and the cover film (16) and the base material can be used. For the resin film as the film (10), for example, a carbon dioxide laser is usually used. Also, depending on the material of the film, a YAG laser, an excimer laser, a wavelength tunable die laser, or the like can be used.

As the latter rotary die cutter means, on the cover film (16) side shown in FIG. 7 (b) or the base film (10) side shown in FIG. 8 (b),
Using a rotary die cutter equipped with a male barrel equipped with a blade for engraving half cuts (SL, BL) in a predetermined shape and a female barrel that faces the male barrel and moves in synchronization, a web shape The thin and flexible information display medium (2) can be continuously half-cut. Both of the above-mentioned half cuts (SL, BL) from the front and back sides may be laser light irradiation or rotary die cutter means, or one may be laser light irradiation and the other may be rotary die cutter means.

[0049]

Since the present invention has the above-mentioned constitution, it has the following effects. That is, in the invention according to claim 1, there is provided a thin and flexible information display medium in which at least an electrode layer and an image display layer are provided on a substrate film, and an electrode portion is provided at a peripheral edge portion. An electrode layer is formed on a web-shaped base film, and an easily peelable layer is formed at a portion corresponding to an electrode portion and a peripheral seal portion at a peripheral end portion of the electrode layer, and the entire surface including the easily peelable layer. An image display layer is formed on the image display layer, and a cover film is laminated on the image display layer with an adhesive layer interposed between the web and the thin and flexible information display medium. Half cut over the entire circumference of the image display layer to be the image display layer, and from the base film side, including the electrode portion of the peripheral edge portion and the peripheral seal portion, should be separated into individual products. Half cut to the shape is easy to peel layer Since it is applied, the exposure of the electrode part (removal of unnecessary parts) is easily done in a short time by peeling off the cover film, unlike the conventional removal of unnecessary parts by laser or milling cutting blade, image Since it is not affected by variations in the thickness of the display layer or the like, it is possible to provide a thin and flexible information display medium that is free from defective products due to breakage of the electrode portion. Therefore, it is not necessary to remove the unnecessary portion at the time of cutting (separation), so the half-cut processing for that can be performed in-line with the formation of the electrode layer, the image display layer, etc., which is the previous step, and it is excellent in productivity. The information display medium can be thin and flexible.

Further, in the invention according to claim 2, the easily peelable layer provided on the electrode portion is made to have conductivity, so that the electrode portion can be used as an electrode portion even if the electrode portion is not completely exposed. It is possible to provide a thin and flexible information display medium that can have characteristics and also have a role of protecting the electrode portion during half-cutting and after exposure.

Further, in the invention according to claim 3, since the cover film is connected at a portion facing the easily peelable layer, the exposure of the electrode portion and the peripheral seal portion (removal of an unnecessary portion) is not performed. It is possible to provide a thin and flexible information display medium that can be easily wound up while winding the cover film.

Further, in the invention according to the fourth aspect, at least an electrode layer and an image display layer are provided on the base film, and an electrode portion is attached to the peripheral end portion, which is thin and flexible. A method of manufacturing an information display medium, which is subjected to a half cut from the cover film side of the web-shaped substrate film over the entire circumference, and an easily peelable layer is applied on the electrode portion and the peripheral seal portion of the peripheral end portion thereof, Exposing the electrode part (removing the unnecessary part) can be easily done in a short time by peeling off the cover film, and unlike the conventional method of removing the unnecessary part with a laser or a milling blade, image display Since it is not affected by variations in the thickness of layers and the like, it is possible to provide a thin and flexible method of manufacturing an information display medium that does not become a defective product due to damage of the electrode portion.
Therefore, since it is not necessary to remove this unnecessary portion at the time of cutting (separation), the half-cut processing for that purpose can be performed in-line with the formation of the electrode layer, the image display layer, etc., which is the previous step, thus improving productivity. It is possible to provide a method of manufacturing an information display medium having excellent thinness and flexibility.

Further, in the invention according to claim 5, since the easily peelable layer provided on the electrode portion is made to have conductivity, the characteristics as the electrode portion can be obtained even if the electrode portion is not completely exposed. A method of manufacturing a thin and flexible information display medium that can be provided and also has a role of protecting the electrode portion can be provided.

Further, in the invention according to claim 6, since the cover film is connected at the portion facing the easily peelable layer, the exposure of the electrode portion and the peripheral seal portion (removal of an unnecessary portion) is connected. It is possible to provide a method for manufacturing a thin and flexible information display medium which can be easily carried out while winding a covering film.

Furthermore, in the invention according to the seventh aspect, since the web-shaped thin and flexible information display medium is formed in a single row or a plurality of rows in the running direction, individual products can be efficiently produced. A method of manufacturing a thin and flexible information display medium that can be produced can be provided.

Therefore, the present invention is excellent in practical use in a thin and flexible information display medium for displaying information on a hanging or wall surface of a train, a bus, etc., or a bulletin board at a store, a station, etc. Exert the effect of.

[Brief description of drawings]

FIG. 1 shows an embodiment of a thin and flexible information display medium of the present invention, (a) is a plan view thereof, and (b) is a BB plane of (a). It is a sectional side view.

FIG. 2 illustrates formation of an electrode layer and an easily peelable layer in a manufacturing process of an example of a thin and flexible information display medium of the present invention, and (a) is a plan view thereof. (B) is
It is a BB side sectional drawing of (a).

FIG. 3 is an explanatory diagram showing a side cross-section of formation of an image display layer in a manufacturing process of an example of the thin and flexible information display medium of the present invention.

FIG. 4 is an explanatory view showing a side cross-section of formation of a transparent electrode layer in a manufacturing process of an example of the thin and flexible information display medium of the present invention.

FIG. 5 is an explanatory view showing, in a side cross section, formation of an adhesive layer and a cover film in a manufacturing process of an example of the thin and flexible information display medium of the present invention.

FIG. 6 is a plan view of slitting a wide web-shaped thin and flexible information display medium in a manufacturing process of an example of the thin and flexible information display medium of the present invention.

FIG. 7 is a view for explaining processing from the surface of individual products of the web-shaped thin and flexible information display medium during the manufacturing process of an example of the thin and flexible information display medium of the present invention. Where (a) is a plan view thereof, and (b) is
It is a BB plane sectional view of (a).

FIG. 8 is a view for explaining the processing from the back side of the web-shaped thin and flexible information display medium into individual products during the manufacturing process of an example of the thin and flexible information display medium of the present invention. Where (a) is a plan view thereof, and (b) is
It is a BB plane sectional view of (a).

FIG. 9 is an explanatory diagram schematically showing an example of an image display layer that constitutes the thin and flexible information display medium of the present invention.

FIG. 10 is a perspective view schematically showing an example of the display form of the image display layer that constitutes the thin and flexible information display medium of the present invention.

FIG. 11 is a side sectional view schematically showing an example of the display form of the image display layer that constitutes the thin and flexible information display medium of the present invention.

FIG. 12 is a view for explaining an example of manufacturing a conventional thin and flexible information display medium, in which (a) is a plan view thereof and (b) is a side sectional view thereof.

[Explanation of symbols]

1 ... Thin and flexible information display medium 2 ... Web-shaped thin and flexible information display medium 5 ... Base material 7 ... Electrode section 10 ... Base film 11a. Electrode layer 12a ... Transparent electrode layer 12b ... Peripheral seal portion 12c ... Margin portion 13 ... Easy peeling layer 14 ... Image display layer 15 ... Adhesive layer 16 ... Cover film 17 ... Protective layer 110 ... Microcapsule 111 ... Capsule shell 112 ... Dispersion medium 113 ... White particle 114 ... Black particle L ... Slit line AL ... Cutting line BL over the entire circumference ... Half cut SL from the base film side ... Half cut from cover film RM Register mark P Longitudinal direction

Claims (7)

[Claims] 1. A substrate film, and at least an electrode layer,
A thin and flexible information display medium having an image display layer and an electrode portion at the peripheral edge portion, wherein the electrode layer is formed on a web-shaped base film, and the peripheral edge portion of the electrode layer is formed. An easily peelable layer is formed on a portion corresponding to the electrode portion and the peripheral seal portion of the portion, an image display layer is formed on the entire surface including the easily peelable layer, and the image display layer is further covered with an adhesive layer. The film is laminated, from the cover film side,
Half cuts are engraved up to the image display layer over the entire circumference of the image display layer to be an individual product, and from the base film side, including the electrode portion and the peripheral seal portion of the peripheral end portion,
A thin and flexible information display medium characterized in that half cuts are engraved in a shape to be separated into individual products up to an easily peelable layer. 2. The thin and flexible information display medium according to claim 1, wherein the easy peeling layer is formed of a conductive peeling agent. 3. The thin and flexible information display medium according to claim 1, wherein the cover film is connected at a portion facing the easily peelable layer. 4. At least an electrode layer on a base film,
A method for manufacturing a thin and flexible information display medium provided with an image display layer and an electrode portion provided at a peripheral end portion,
An electrode layer is formed on a running web-shaped substrate film, and an easily peelable layer is formed at a portion corresponding to an electrode portion and a peripheral seal portion at a peripheral end portion of the electrode layer, and the easily peelable layer is further included. An image display layer is formed on the entire surface, a cover film is laminated on the image display layer via an adhesive layer, and a half cut image is formed from the cover film side over the entire circumference of the image display layer to be an individual product. Engraving up to the display layer, from the side of the substrate film, including the electrode portion of the peripheral edge and the peripheral seal portion, it is possible to engrave half-cut up to the easy peeling layer in a shape to be separated into individual products. A method of manufacturing a thin and flexible information display medium which is a feature. 5. The method for manufacturing a thin and flexible information display medium according to claim 4, wherein the easily peelable layer is formed of a conductive peeling agent. 6. The method for manufacturing a thin and flexible information display medium according to claim 4, wherein the cover film is connected at a portion facing the easily peelable layer. 7. The thin and flexible information display medium, which is the individual product, is formed in a single row or in a plurality of rows in the running direction of the web-like thin and flexible information display medium by multiple imposition. 7. The method for manufacturing a thin and flexible information display medium according to claim 4, 5, or 6.