JP2008257957A - Light emitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emitter in which a message can be transmitted easily and a failure hardly occurs. <P>SOLUTION: The emitter 10 is constituted of a light-emitting sheet in which an inorganic EL layer 12 of a sheet shape containing an inorganic EL material is pinched between a dielectric layer 11 of a dielectric of a sheet shape and a dielectric layer 13 of a transparent dielectric of a sheet shape, and a conductive layer 14. The conductive layer 11 is a well-known resin of, for example, polypropylene or the like and the dielectric layer 13 is a well-known transparent resin of, for example, polyethylene terephthalate. The inorganic EL layer 12 is constituted of the inorganic EL material to form a plurality of light-emitting particles and a dielectric material to disperse and support the plurality of light-emitting particles inside, and has one or more emission colors capable of perceiving a prescribed message. The conductive layer 14 is a transparent conductor and formed by forming a well-known transparent conductor film such as, for example, a tin indium oxide, and has an extension part 15 which is a portion extended in a direction near the ground by only a prescribed length. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light emitter used for a label or the like.

As a failure sign that can be recognized at night from ships, vehicles, etc., only a light source such as an LED (Light Emitting Diode) is installed, or a sign board on which a message is written is irradiated with a light source (for example, , See Patent Document 1).
JP 2000-40403 A

  However, the sign using only the light source has a problem that the intention of the message is difficult to be transmitted and is likely to break down. For example, a light source such as an obstruction light was installed on a power transmission line that crossed the upper part of the ship's channel, but the meaning of the light source (existence of the power transmission line) was not transmitted to the operator of the ship navigating at night. There is an example that the electric wire has been cut. Moreover, even if the sign plate is irradiated with a light source, the message part does not stand out, and it may be difficult to see due to reflection depending on the viewing azimuth angle. When a message is printed on a transparent sheet and pasted on a light source, the portion on which the message is printed becomes dark and the message transmission effect is reduced. Therefore, if a message is displayed by combining several tens of LEDs to make the intent easy to understand, the meaning of the message may be misrecognized when a part of the LED breaks down.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide a light-emitting body that is easy to transmit a message and hardly breaks down.

  In order to solve the above problems, the present invention provides a light emitter, at least one of which is light-transmitting two electrode plates, and one or more that are sandwiched between the two electrode plates so that a predetermined message can be visually recognized. And an inorganic EL panel having an emission color of, and is attached to or suspended from an electric wire that generates an induction electric field.

  According to this configuration, since the inorganic EL panel emits surface light instead of point light emission, it is possible to easily provide a sign plate in which the spread of the sign and the meaning of the message can be easily recognized. In addition, since the inorganic EL panel is composed of a large number of luminescent particles, even if several of them do not emit light, there is no hindrance to the viewing of the message, and it is possible to provide a signboard that is difficult to break down. And since an inorganic electroluminescent panel uses the induction electric field by an electric wire as a power supply, an inexpensive sign board can be provided, without requiring a power supply device or a complicated circuit structure.

  Further, the present invention is a light emitter, wherein both of the two electrode plates are light transmissive.

  According to this configuration, when one inorganic EL panel emits light, mutually reversed messages can be visually recognized from both surfaces of the light emitter.

  Further, the present invention is a light emitting body, and includes two electrode plates having light transmittance, a dielectric between the two electrode plates and having no light transmittance, one of the electrode plates, and the electrode plate. And two inorganic EL panels having one or more luminescent colors that are sandwiched between dielectrics and capable of visually recognizing a predetermined message, and are pasted or suspended on an electric wire that generates an induction electric field.

  According to this configuration, the two inorganic EL panels emit light in opposite directions, so that the same or different messages can be viewed from both sides of the light emitter.

  In addition, the present invention is a luminescent material that includes an inorganic EL material that forms a plurality of luminescent particles, and a dielectric material that supports and disperses the plurality of luminescent particles, and is attached to an object that generates an induced electric field. Or it is suspended.

  According to this configuration, an inorganic electric field is generated under a combined electric field of an induced electric field at a place where the adhesive is applied or suspended and an electric field which is further formed at the place where the polarization charge generated in the dielectric material by the induced electric field is applied or suspended. A plurality of light emitting particles made of an EL material emit light. Since this luminous body uses the induction electric field generated by the object as the only source of electric energy, it is not necessary to prepare a separate power source. In general, the higher the electric field, the greater the amount of light from the plurality of luminescent particles under the electric field. Therefore, even if the induced electric field of the object is constant, for example, if a dielectric material is selected such that the electric field formed by the polarization charge is higher, the electric field for the light emitter is further increased, and this light emitter is The amount of light can be maintained. As described above, the light emitter does not require a power source, but can maintain a predetermined light amount.

  Further, the present invention is a luminescent material, an inorganic EL material that forms a plurality of luminescent particles, a first dielectric material that forms a plurality of dielectric particles for facilitating light emission of the plurality of luminescent particles, A second dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, which supports the plurality of light emitting particles and the plurality of dielectric particles in a dispersed manner, and generates an induction electric field It is affixed or suspended.

  According to this configuration, the induced electric field at the place where the material is stuck or suspended, and the polarization charges generated in both the plurality of dielectric particles made of the first dielectric material and the second dielectric material by the induced electric field are stuck or suspended. A plurality of light-emitting particles made of an inorganic EL material emit light under an electric field that is combined with an electric field further formed at a place. The light is transmitted through the second dielectric material and emitted to the outside of the light emitter. Since this luminous body uses the induction electric field generated by the object as the only source of electric energy, it is not necessary to prepare a separate power source. In addition, the second dielectric material has a smaller dielectric constant than the first dielectric material, but may have higher light transmission than the first dielectric material. On the other hand, since the dielectric constant of the first dielectric material is larger than that of the second dielectric material, the electric field formed by the polarization charge can be higher. Therefore, if the light transmission function is mainly given to the second dielectric material and the electric field concentration function in the place where it is stuck or suspended is mainly given to the first dielectric material, both the transparency to the visible light and the electric field concentration degree are obtained. The first dielectric material and the second dielectric material can be selected to be high. Therefore, the light emitter can maintain a predetermined light amount. As described above, the light emitter does not require a power source, but can maintain a predetermined light amount.

  In addition, the present invention is a luminescent material, and an inorganic EL material that forms a plurality of luminescent particles, a first dielectric material that supports the plurality of luminescent particles in a dispersed manner, and the plurality of luminescent particles that easily emit light. A second dielectric material having a dielectric constant greater than the dielectric constant of the first dielectric material, and the plurality of dielectric particles are dispersedly supported around the first dielectric material. And a third dielectric material having a dielectric constant smaller than that of the second dielectric material, and is attached or suspended on an object that generates an induction electric field.

  According to this configuration, the induced electric field at the place where the material is stuck or suspended, and the polarization charge generated in the first dielectric material, the plurality of dielectric particles made of the second dielectric material, and the third dielectric material by the induced electric field. A plurality of luminescent particles made of an inorganic EL material emit light under an electric field that is combined with an electric field that is further formed at the place where the sticking or suspension is performed. This light is transmitted through the first dielectric material and the third dielectric material and is emitted to the outside of the light emitter. Since this luminous body uses the induction electric field generated by the object as the only source of electric energy, it is not necessary to prepare a separate power source. In addition, the first dielectric material and the third dielectric material have a dielectric constant smaller than that of the second dielectric material, but may have higher light transmittance than the second dielectric material. On the other hand, since the second dielectric material has a higher dielectric constant than the first dielectric material and the third dielectric material, the electric field formed by the polarization charge can be higher. Accordingly, if the first dielectric material and the third dielectric material are mainly given the light transmission function, and the electric field concentration function is mainly given to the second dielectric material, the transparency to visible light and The first dielectric material, the second dielectric material, and the third dielectric material can be selected so that the electric field concentration is high. Therefore, the light emitter can maintain a predetermined light amount. As described above, the light emitter does not require a power source, but can maintain a predetermined light amount. Further, the structure of this luminescent material is such that the first dielectric material that supports and disperses a plurality of luminescent particles is mainly coated with the third dielectric material, so that these luminescent particles are missing from the luminescent material. In addition to being suppressed, it also has a function of moisture-proofing these luminescent particles. Therefore, the predetermined light amount maintenance period becomes longer.

  Further, the present invention is a light emitter, wherein the first dielectric material and the third dielectric material are the same type of material.

  The same species has the same chemical structure, or is basically similar, for example, as in the relationship between a homopolymer and a copolymer containing a small amount of a copolymer component. means. According to this configuration, since the third dielectric material around the first dielectric material is difficult to peel, the luminescent particles are difficult to be exposed to the outside. Therefore, the maintenance period of the predetermined light amount becomes longer and the durability period of the light emitter becomes longer.

  Further, the present invention is a luminescent material, an inorganic EL material that forms a plurality of luminescent particles, a first dielectric material that forms a plurality of dielectric particles for facilitating light emission of the plurality of luminescent particles, Dispersing and supporting the plurality of dielectric particles, a second dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, and supporting the plurality of light emitting particles around the second dielectric material. And a third dielectric material having a dielectric constant smaller than that of the first dielectric material, and is attached or suspended on an object that generates an induction electric field.

  According to this configuration, the induced electric field at the place where the material is stuck or suspended, and the polarization charges generated in the plurality of dielectric particles made of the first dielectric material, the second dielectric material, and the third dielectric material by the induced electric field. A plurality of luminescent particles made of an inorganic EL material emit light under an electric field that is combined with an electric field that is further formed at the place where the sticking or suspension is performed. This light is transmitted through the second dielectric material and the third dielectric material and is emitted to the outside of the light emitter. Since this luminous body uses the induction electric field generated by the object as the only source of electric energy, it is not necessary to prepare a separate power source. In addition, the second dielectric material and the third dielectric material have a dielectric constant smaller than that of the first dielectric material, but may have higher light transmittance than the first dielectric material. On the other hand, since the first dielectric material has a higher dielectric constant than the second dielectric material and the third dielectric material, the electric field formed by the polarization charge can be higher. Accordingly, if the second dielectric material and the third dielectric material have a light transmission function mainly and the electric field concentration function in a place where the light is pasted or suspended is mainly provided to the first dielectric material, transparency to visible light and The first dielectric material, the second dielectric material, and the third dielectric material can be selected so that the electric field concentration is high. Therefore, the light emitter can maintain a predetermined light amount. As described above, the light emitter does not require a power source, but can maintain a predetermined light amount. Further, the structure of the light emitter is such that the third dielectric material supporting and dispersing the plurality of light emitting particles is exposed to the outside of the light emitter. The optical path to is shorter. This leads to an improvement in the amount of light.

  Further, the present invention is a light emitter, wherein the second dielectric material and the third dielectric material are the same type of material.

  According to this configuration, since the third dielectric material around the second dielectric material is difficult to peel off, the durability of the light emitter becomes longer.

  In addition, the present invention further includes a fourth dielectric material which is a light emitting body and has a dielectric constant smaller than a dielectric constant of the first dielectric material, which covers the periphery of the third dielectric material. Features.

  According to this configuration, the fourth dielectric material has a smaller permittivity than the first dielectric material, but has a function of transmitting light from the light-emitting particles with higher transparency than the first dielectric material. Can do. The fourth dielectric material covers and protects the periphery of the third dielectric material that supports and disperses a plurality of luminescent particles, thereby preventing these luminescent particles from being lost from the luminescent material. Also, it has a function of moisture-proofing these luminescent particles. Therefore, the predetermined light amount maintenance period becomes longer.

  In addition, the present invention is a light emitter, and further includes a moisture-proof material that covers the periphery of each of the light emitting particles.

  According to this configuration, the inorganic EL material forming the luminescent particles is not easily exposed to moisture, so that it is difficult to be altered. Therefore, the maintenance period of the predetermined light amount becomes longer and the durability period of the light emitter becomes longer.

  Further, the present invention is a light emitter, wherein the plurality of light emitting particles are made of the inorganic EL material that emits light at a plurality of wavelengths.

  According to this configuration, for example, if a plurality of luminescent particles are formed from an inorganic EL material that contains three types of inorganic EL materials that emit light in red (R), green (G), and blue (B) at a predetermined ratio, The illuminant can emit light in any luminescent color. Alternatively, for example, if light emitting particles made of a single inorganic EL material that emits light for each of the RGB are mixed and dispersed at a predetermined ratio, the light emitter can emit light in any light emission color. Also, various light emission colors can be realized by combining any two of the RGB at a predetermined ratio.

  Moreover, this invention is a light-emitting body, Comprising: The said object is an aerial power transmission line by which the said light-emitting body is stuck or suspended.

  According to this configuration, the light emitter emits light using an induction electric field generated around the overhead power transmission line by, for example, an alternating current. Thus, since the light emitter can use an induction electric field accompanying the power originally supplied by the overhead power transmission line as a power source, it does not require a separate power source. If this illuminant is attached to or suspended from an overhead power transmission line and used as, for example, a marker lamp, this marker lamp does not require a power source, and a predetermined amount of light is emitted in any direction around the overhead power transmission line. The light is emitted while maintaining. Therefore, for example, the equipment cost and maintenance cost of the marker lamp can be reduced.

  In addition, the problems disclosed in the present application and the solutions thereof will be clarified by the column of the best mode for carrying out the invention and the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, a light-emitting body which a message is easy to convey and it is hard to break down can be provided.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The luminous body according to the embodiment of the present invention is a sticker that displays a predetermined message, and an inorganic EL panel sandwiched between a transparent electrode plate and an opaque electrode plate is attached to an overhead power transmission line. Or it is something that is suspended. While the LED shines only at a point, the entire surface of the inorganic EL panel shines when it is made into a sheet, so that it is easy to recognize a message when viewed from the outside.

≪Basic structure of luminous body≫
FIG. 1 is a diagram showing a basic structure of a light emitter and an installed state on an electric wire. FIG. 1A shows a state where the light emitter 10 is attached to the electric wire L. FIG. FIG. 1B shows a state where the light emitter 10 is suspended or suspended from the electric wire L. FIG.

  The light-emitting body 10 includes a sheet-shaped dielectric dielectric layer 11 and a sheet-shaped transparent dielectric dielectric layer 13 sandwiched by a sheet-shaped inorganic EL layer 12 containing an inorganic EL material. The light emitting sheet thus formed and the conductive layer 14 are configured. The dielectric layer 11 is a known resin such as polypropylene (PP: PolyPropylene), and the dielectric layer 13 is a known transparent resin such as polyethylene terephthalate (PET). The inorganic EL layer 12 includes an inorganic EL material that forms a plurality of light-emitting particles, which will be described later, and a dielectric material that disperses and supports the plurality of light-emitting particles inside. The conductive layer 14 is a transparent conductor, for example, a well-known transparent conductor film such as indium tin oxide (ITO), or the surface of a base material having a predetermined shape by injection molding or the like. It is formed by evaporating a well-known transparent conductor material such as ITO. The conductive layer 14 has an extension 15 that is a part extended by a predetermined length in a direction (vertical direction) close to the ground (ground). In addition, the structure which provides a conductive layer between the dielectric layer 11 and the electric wire L as another form of the light-emitting body 10 may be sufficient.

  Since the inorganic EL layer 12 is deteriorated by ultraviolet rays when used outdoors, a component having an ultraviolet shielding function is used for the prevention. For example, a film having an ultraviolet shielding function may be used for the dielectric layer 13 or the conductive layer 14 or may be provided so as to cover the exterior of the light emitter 10. The film is provided with an ultraviolet shielding function by adding an ultraviolet absorber or coating on one or both sides. Further, an ultraviolet absorber may be added and dispersed in the binder (dispersion medium) of the inorganic EL layer 12 without using a film.

≪Example structure of illuminant≫
The inorganic EL layer 12 may have a structure other than the above. An example is shown below. Details are described in the specification of Japanese Patent Application No. 2005-295535.
First, in the first structural example, the inorganic EL layer 12 includes an inorganic EL material that forms a plurality of luminescent particles, and a first dielectric material that forms a plurality of dielectric particles for easily emitting the plurality of luminescent particles. And a second dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, which dispersely supports the plurality of light emitting particles and the plurality of dielectric particles.

  Next, in the second structural example, the inorganic EL layer 12 emits the inorganic EL material that forms a plurality of luminescent particles, the first dielectric material that disperses and supports the plurality of luminescent particles, and the plurality of luminescent particles. A second dielectric material having a dielectric constant greater than a dielectric constant of the first dielectric material, and forming the plurality of dielectric particles around the first dielectric material. And a third dielectric material having a dielectric constant smaller than that of the second dielectric material, which is dispersedly supported. The first dielectric material and the third dielectric material may be the same type of material.

  Subsequently, in the third structural example, the inorganic EL layer 12 includes an inorganic EL material that forms a plurality of luminescent particles, and a first dielectric that forms a plurality of dielectric particles for easily emitting the plurality of luminescent particles. A material, a second dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, which supports and disperses the plurality of dielectric particles, and the light emitting particles around the second dielectric material. And a third dielectric material having a dielectric constant smaller than that of the first dielectric material, which is dispersedly supported. Note that the second dielectric material and the third dielectric material may be the same type of material. Further, it may further include a fourth dielectric material covering the periphery of the third dielectric material and having a dielectric constant smaller than that of the first dielectric material.

  Furthermore, the first structure example, the second structure example, and the third structure example may further include a moisture-proof material that covers the periphery of each light emitting particle, and the plurality of light emitting particles may have a plurality of wavelengths. It may be made of the inorganic EL material that emits light.

≪Inorganic EL material≫
The inorganic EL material of the present embodiment is a so-called intrinsic EL material, and emits light when an alternating electric field is applied (electroluminescence). The principle of this electroluminescence is as follows. First, electrons in the interface between the dielectric material and the inorganic EL material or in the inorganic EL material in the vicinity of the dielectric material are accelerated by an electric field (hot electrons) to excite the electrons at the emission center in the inorganic EL material. This mechanism is as disclosed in, for example, Japanese Patent Application Laid-Open No. 2005-116503 or International Application Publication No. 02/080626. Next, this emission center emits as light the difference in energy when electrons in the excited state return to the ground state.

≪Dielectric material≫
The dielectric material of the present embodiment is, for example, an organic polymer material. The organic polymer material is preferably a resin that easily transmits the light emitted from the inorganic EL material, that is, transparent to visible light. Examples thereof include polyamide resins, polyester resins, fluorine resins, and polyolefin resins. In addition, this organic polymer material is preferably a material having moisture resistance (for example, a fluorine-based resin) against an inorganic EL material that may be altered by moisture. In addition, the organic polymer material is preferably a material having higher light transmittance such as acrylic. That is, the organic polymer material for dispersing and supporting the inorganic EL material has a smaller volume ratio than the organic polymer material in the dielectric layer 11 and the dielectric layer 13 described above, and is therefore selected mainly from the viewpoint of light transmittance. It is preferable. On the other hand, the organic polymer material used for the dielectric layer 11 and the dielectric layer 13 preferably has a higher dielectric breakdown voltage in order to withstand a higher shared voltage.

≪Light emission mechanism≫
The light emitter 10 illustrated in FIG. 1 emits light based on the light emission mechanism described below. That is, the light emitter 10 mainly corresponds to the voltage between the electric wire L that generates the induction electric field and the ground, for example, the capacitor C corresponding to the dielectric layer 13 and the air between the extension 15 and the ground (capacitor C). And an equivalent circuit shared by a capacitor C ′ (connected in series). In this case, the impedance of the capacitor C ′ (air) when there is the extension 15 of the conductive layer 14 is smaller than the impedance when there is no extension 15. As a result, the shared voltage of the capacitor C (dielectric layer 13) becomes larger than the shared voltage in the case where the extension 15 is not provided, and therefore the induced electric field at the boundary between the inorganic EL layer 12 and the dielectric layer 13 becomes larger. In general, the larger the induction electric field, the greater the amount of light from the inorganic EL material under the induction electric field, so the inorganic EL material in the inorganic EL layer 12 can emit light with higher luminance.

  By the light emission mechanism described above, an inorganic EL material is disposed on the inorganic EL layer 12 so as to form a shape in which a predetermined message can be visually recognized, and the light is emitted, and the light is output to the outside through the dielectric layer 13 and the conductive layer 14. This makes it possible for a person outside to recognize a predetermined message.

<< First Example >>
A first embodiment of the light emitter will be described with reference to FIGS. 2, 3, and 4. FIG. 2 is a diagram showing the structure of the light emitter. FIG. 2A shows the structure of a type 1 light emitter. This illuminant is composed of a conductive layer (electrode plate) 1, a dielectric layer 2, an inorganic EL layer (inorganic EL panel) 3, a dielectric layer 4 and a conductive layer (electrode plate) 5, and a conductive antenna 6 is provided on the conductive layer 1. It is attached. In this light emitter, light emitted from the inorganic EL layer 3 is output to the outside through the dielectric layer 2 and the conductive layer 1, and is also output to the outside through the dielectric layer 4 and the conductive layer 5. Therefore, a message is emitted from the same inorganic EL layer 3 in two directions. According to this, the type 1 illuminant is a sign that does not interfere as a message even if it is not the same when the front and back are reversed, such as a picture or design, even if the front and back are reversed. Can be applied to.

  FIG. 2B shows the structure of a type 2 light emitter. This luminous body is composed of a conductive layer 1, a dielectric layer 2, an inorganic EL layer 3, a dielectric layer (dielectric) 7, an inorganic EL layer 3, a dielectric layer 4 and a conductive layer 5, and a conductive antenna 6 is provided on the conductive layer 1. It is attached. In this light emitter, light emitted from the left inorganic EL layer 3 is output to the outside through the dielectric layer 2 and the conductive layer 1, while light emitted from the right inorganic EL layer 3 is output to the dielectric layer 4 and the conductive layer. 5 to the outside. Therefore, a message is emitted from two different inorganic EL layers 3 in different directions (opposite directions). According to this, the type 2 illuminant can be applied to signs such as characters and symbols that can recognize the intention as a message only when viewed from one direction.

  FIG. 3 is a diagram showing the material and the like of the light emitter shown in FIG. The conductive layers 1 and 5 are made of ITO, have a thickness of about 125 μm, and have a high light transmittance and conductivity. Note that either one of the conductive layers 1 and 5 may have a poor light transmission property, and a message may be displayed only on one side. The dielectric layers 2, 4 and 7 have a thickness of about 50 μm. The dielectric layers 2 and 7 are made of PET, while the dielectric layer 4 is made of polyvinylidene fluoride (PVDF). The dielectric layers 2 and 4 have high light transmission, but the dielectric layer 7 has poor light transmission. The dielectric layer 2 is a material having a small dielectric constant, while the dielectric layer 4 is a material having a relatively large dielectric constant.

  The inorganic EL layer 3 uses a substance (ZnS: Cu) in which copper is added as the emission center for zinc sulfide in the green light emitting part, and copper and manganese are added as the emission center for zinc sulfide in the orange light emitting part. Material (ZnS: Cu + Mn) is used and has a thickness of about 100 μm. There are other light emitting colors (red, blue, etc.), and details thereof are described in the specification of Japanese Patent Application No. 2005-295535. The conductive antenna 6 is made of ITO, has a thickness of about 125 μm, and has a high light transmission and conductivity. The conductive antenna 6 is added to lower the light emission start voltage (corresponding to the extension 15 in FIG. 1), and for example, a conductive tape is used.

  In addition, ITO consists of what vapor-deposited the conductive layer (indium tin oxide) on the base material (PET of 125 micrometers in thickness).

  FIG. 4 is a diagram showing the results of a light emission experiment using the type 1 light emitter shown in FIGS. FIG. 4A shows the configuration of the apparatus used in the light emission experiment. One bar electrode is installed horizontally as a simulated electric wire, and a marker which is a light emitter is attached to the bar electrode. The label is approximately 10 cm × 10 cm in size. In addition, a conductive tape is applied as the conductive antenna 6, and plastic chucha balls (stationery) are used for connection with the conductive layer 1 of the light emitter. When an AC (Alternating Current) voltage is applied between the bar electrode and the flat plate electrode (ground), the letter “I” is displayed on the sign.

  FIG. 4B shows the result of the light emission experiment. In Experiment Nos. 1-1 and 1-2, the light emitter is attached so that its surface is parallel to the bar electrode. In Experiment No. 1-1, the length of the conductive antenna 6 is 25 cm, and in Experiment No. 1-2, it is 10 cm. Next, in Experiment No. 2-1, the light emitter is attached so that its surface is perpendicular to the rod electrode, and the length of the conductive antenna 6 is 25 cm. In the three experiments, 64 kV, 80 kV, and 100 kV are applied between the bar electrode and the flat plate electrode to measure the luminance of the sign and take a picture. The measurement results and photographs are shown in FIG.

<< Second Embodiment >>
A second embodiment of the light emitter will be described with reference to FIGS. The second embodiment is a light emission experiment when the method of installing the light emitter on the rod electrode (simulated electric wire) is changed.

  FIG. 5 is a diagram showing three installation methods and structural examples of light emitters used for each. A type I phosphor is suspended on a rod electrode, and includes a protective layer (1), a conductive layer (2), a dielectric layer (3), an inorganic EL layer (4), a dielectric layer (5), a conductive layer (6) and It consists of a protective layer (7). The type II illuminator has its upper part attached to a rod electrode and is composed of a conductive layer (11), an inorganic EL layer (12), a dielectric layer (13), and a conductive layer (14). The type III illuminator has a central portion attached to a rod electrode and is composed of a conductive layer (21), a dielectric layer (22), an inorganic EL layer (23), a dielectric layer (24), and a conductive layer (25). The

  FIG. 6 is a diagram showing the materials and experimental results of the light emitters used in the three installation methods. The type I phosphor is a PP tape with a protective layer (1) of 60 μm thickness, a conductive layer (2) of ITO with a thickness of 125 μm, and a dielectric layer (3) of PET with a thickness of 50 μm, The inorganic EL layer (4) is an inorganic EL having a thickness of 90 μm, the dielectric layer (5) is a PP tape having a thickness of 60 μm, the conductive layer (6) is an aluminum tape having a thickness of 100 μm, and a protective layer (7 ) Is a PP tape having a thickness of 60 μm. The antenna is a conductive double-sided tape having a length of 40 mm.

  In the type II light emitter, the conductive layer (11) is ITO having a thickness of 125 μm, the inorganic EL layer (12) is an inorganic EL having a thickness of 113 μm, and the dielectric layer (13) is PVDF having a thickness of 50 μm. The conductive layer (14) is a conductive silver paste having a thickness of about 10 μm. The antenna is a conductive double-sided tape having a length of 70 mm.

  In the type III light emitter, the dielectric layer (21) is made of ITO having a thickness of 125 μm, the dielectric layer (22) is made of PP tape having a thickness of 60 μm, and the inorganic EL layer (23) is made of inorganic EL having a thickness of 100 μm. The dielectric layer (24) is PVDF having a thickness of 100 μm, and the conductive layer (25) is a conductive silver paste having a thickness of about 10 μm. The antenna is a conductive double-sided tape having a length of 60 mm.

  FIG. 6 shows the voltage applied to each, the measured luminance, and the luminescence photograph taken.

«Third embodiment»
A third embodiment of the light emitter will be described with reference to FIG. 3rd Example shows the specific example of the method of sticking a light-emitting body to an electric wire.

  FIG. 7A shows an example in which the light emitter 10 is directly attached to the electric wire L with an adhesive 71 (which may be a double-sided adhesive tape or the like). FIG. 7B shows an example in which the light emitter 10 is attached to the electric wire L with an insulator adapter 72 interposed therebetween. Here, between the electric wire L and the adapter 72, and between the adapter 72 and the electric wire L shall be affixed with an adhesive agent or a double-sided adhesive tape. According to this, since the pasting area can be increased, the strength of pasting can be increased. FIG. 7C shows an example in which the light emitter 10 is attached to the electric wire L using scissors 73. According to this, the light emitter 10 can be easily attached to and detached from the electric wire L any number of times.

  In addition, the method of sticking a light emitter to an electric wire is applied when a small sign is easily installed in a place where wind is weak (for example, an indoor electric wire, a distribution line installed in a place where many people are connected). In recent years, there is a case where a crane car hooks an electric wire and tilts a utility pole at night, resulting in a power outage. By providing a sign using a light emitter, such an accident can be prevented in advance.

«Fourth embodiment»
A fourth embodiment of the light emitter will be described with reference to FIG. The fourth embodiment shows a specific example of a method for suspending a light emitter on an electric wire.

  Fig.8 (a) shows the structural example of the ring metal fitting attached to an electric wire. The ring fitting 81 includes an upper part 82 and a lower part 83, and coupling bolt through holes 84 are provided in two parts where the upper part 82 and the lower part 83 are connected to each other. Then, when the upper part 82 and the lower part 83 are joined so that the electric wire L passes through the hollow of the ring fitting 81, the two joining bolts are respectively fitted into the joining bolt through holes 84. According to this, the ring metal fitting 81 for suspending the light emitter 10 on the electric wire L can be easily attached. The material of the ring fitting 81 is desirably stainless steel that does not easily rust.

  FIG.8 (b) shows the example which suspends a light-emitting body in the direction parallel to an electric wire. The surface to be a marker of the light emitter 10 is parallel to the direction in which the electric wire L extends. FIG.8 (c) shows the example which suspends a light-emitting body in the direction perpendicular | vertical to an electric wire. The surface to be a marker of the light emitter 10 is perpendicular to the direction in which the electric wire L extends. In these cases, the light emitter 10 has a through hole 85 through which the ring metal fitting 81 is passed, and the through hole 85 is provided with a reinforcing tool 86 for protecting the surface in contact with the ring metal fitting 81.

  In either case, the strength of the suspension can be increased by increasing the number of through holes 85 of the light emitter 10 and increasing the number of ring fittings 81 that pass through the through holes 85 and through which the electric wires L pass. Further, the light emitter 10 swings so as to reduce the area of the sign with respect to the wind direction according to the wind speed. In order to improve the stability in the wind, for example, the extension 15 may be provided such that its cross section has a wing shape, or the light emitter 10 itself may have a curved shape like a kite. . On the other hand, by attaching the ring fitting 81 to the electric wire L with the inner diameter of the ring metal 81 being the same size as the outer diameter of the electric wire L, the light emitter 10 can be fixed at a specified position on the electric wire L.

  Note that the method of suspending the light emitter on the electric wire is applied when a large sign is firmly installed in a windy place.

  In the third and fourth embodiments, it is conceivable that the illuminant 10 is housed in a streamlined plastic capsule over the entire surface or the periphery. According to this, mechanical strength can be improved and moisture absorption deterioration can be prevented. In this case, by increasing the weight of the lower part of the capsule, the inclination of the sign can be made constant except when the wind is strong.

  According to the embodiment of the present invention described above, since the inorganic EL light emitter emits surface light, it is possible to draw a message part and a campus part of a sign, and only by arranging it near a high electric field such as an electric wire. The sign that the message part and campus part emit light can be realized. According to this, since the spread of the sign and the meaning of the message can be easily recognized and a power supply device and a complicated circuit configuration are not required, it is possible to provide a sign that is inexpensive and hardly breaks down.

  According to the above, the luminous body is useful for security of facilities such as ships, vehicles, and electric wires. Also useful for crime prevention, warning, advertising and guidance services. As a specific example, when a light emitter is installed on a wire traversing the upper part of the ship's channel together with a main sign (bright light source), the intention of installing the main sign is communicated by a message, and it is necessary to call attention. It can be applied as

  Although the best mode for carrying out the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. In the above-described embodiment, for example, a plate-like illuminant whose message is visible from one side or both sides as shown by reference numeral 91 in FIG. 9 has been described. However, the illuminant has another shape. Also good. For example, a light emitter that has a cylindrical shape as indicated by reference numeral 92 in FIG. According to this, by displaying several to about ten identical messages (for example, “upper caution” etc.) on the cylindrical surface, the same message can be recognized from anywhere around 360 degrees around the light emitter. Can do.

It is a figure which shows the basic structure of a light-emitting body, and the installation state to an electric wire, (a) shows the state by which the light-emitting body 10 was stuck on the electric wire L, (b) is the light-emitting body 10 suspended or suspended by the electric wire L. Indicates the state. It is a figure which shows the structure of a light-emitting body, (a) shows the structure of a type 1 light-emitting body, (b) shows the structure of a type 2 light-emitting body. It is a figure which shows the material etc. of a light-emitting body. It is a figure which shows the result of the light emission experiment using the type 1 light-emitting body, (a) shows the structure of the apparatus used for the light emission experiment, (b) shows the result of the light emission experiment. It is a figure which shows the structural example of the light-emitting body used for three installation methods and each. It is a figure which shows the material and experiment result of the light-emitting body used for three installation methods. It is a figure which shows the specific example of the method of sticking a light-emitting body to an electric wire, (a) shows the example which affixes a light-emitting body directly to an electric wire with an adhesive agent, (b) shows the adapter of an insulator on a light-emitting body and an electric wire. (C) shows the example which attaches a light-emitting body to an electric wire using scissors. It is a figure which shows the specific example of the method of suspending a light-emitting body on an electric wire, (a) shows the structural example of the ring metal fitting attached to an electric wire, (b) shows the example which suspends a light-emitting body in the direction parallel to an electric wire. (C) shows the example which suspends a light-emitting body in the direction perpendicular | vertical to an electric wire. It is a figure explaining the shape of a light-emitting body.

Explanation of symbols

1 Conductive layer (electrode plate)
3 Inorganic EL layer (Inorganic EL panel)
5 Conductive layer (electrode plate)
7 Dielectric layer (dielectric)
DESCRIPTION OF SYMBOLS 10 Light-emitting body 11 Dielectric layer 12 Inorganic EL layer 13 Dielectric layer 14 Conductive layer 15 Extension part

Claims (13)

Two electrode plates, at least one of which is light transmissive,
An inorganic EL panel having one or more luminescent colors sandwiched between the two electrode plates and capable of visually recognizing a predetermined message;
A light emitting body characterized by being attached or suspended on an electric wire that generates an induction electric field. The light emitter according to claim 1,
The two electrode plates are both light-transmitting and have a light-transmitting property. Two electrode plates with light transmission,
A dielectric that is between the two electrode plates and has no optical transparency;
Two inorganic EL panels having one or more luminescent colors that are sandwiched between any one of the electrode plates and the dielectric, and in which a predetermined message can be visually recognized,
A light emitting body characterized by being attached or suspended on an electric wire that generates an induction electric field. An inorganic EL material that forms a plurality of luminescent particles;
A dielectric material that supports and disperses the plurality of light emitting particles,
A light emitter that is attached or suspended on an object that generates an induction electric field. An inorganic EL material that forms a plurality of luminescent particles;
A first dielectric material forming a plurality of dielectric particles for facilitating light emission of the plurality of luminescent particles;
A second dielectric material having a dielectric constant smaller than a dielectric constant of the first dielectric material, which dispersively supports the plurality of light emitting particles and the plurality of dielectric particles;
A light emitter that is attached or suspended on an object that generates an induction electric field. An inorganic EL material that forms a plurality of luminescent particles;
A first dielectric material that supports and disperses the plurality of luminescent particles;
A second dielectric material having a dielectric constant greater than the dielectric constant of the first dielectric material, forming a plurality of dielectric particles for facilitating light emission of the plurality of luminescent particles;
A third dielectric material having a dielectric constant smaller than the dielectric constant of the second dielectric material, which dispersively supports the plurality of dielectric particles around the first dielectric material;
A light emitter that is attached or suspended on an object that generates an induction electric field. The light emitter according to claim 6,
The light emitting body, wherein the first dielectric material and the third dielectric material are the same type of material. An inorganic EL material that forms a plurality of luminescent particles;
A first dielectric material forming a plurality of dielectric particles for facilitating light emission of the plurality of luminescent particles;
A second dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, which supports and disperses the plurality of dielectric particles;
A third dielectric material having a dielectric constant smaller than the dielectric constant of the first dielectric material, which dispersely supports the plurality of light emitting particles around the second dielectric material;
A light emitter that is attached or suspended on an object that generates an induction electric field. The light emitter according to claim 8,
The light emitting body, wherein the second dielectric material and the third dielectric material are the same type of material. The light emitter according to claim 8 or 9, wherein
The light emitting body further comprising a fourth dielectric material having a dielectric constant smaller than a dielectric constant of the first dielectric material covering the periphery of the third dielectric material. The light emitter according to any one of claims 4 to 10,
A light-emitting body further comprising a moisture-proof material covering the periphery of each of the light-emitting particles. The light emitter according to any one of claims 4 to 11,
The light emitting body, wherein the plurality of light emitting particles are made of the inorganic EL material that emits light at a plurality of wavelengths. The light emitter according to any one of claims 4 to 12,
The light emitting body, wherein the object is an overhead power transmission line on which the light emitting body is attached or suspended.