JP2016057874A - Thin electronic device seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin electronic device seal that is extremely compact and thin, equipped with a communicating function and a light emitting function, can be fitted to objects having diverse curved faces and help retrieve a missing and looked-for object without fail.SOLUTION: A thin electronic device seal has at least a thin light emitting member, a thin battery, information transmitting/receiving means and an adhesive layer, and measures not more than 5.0 mm in total thickness.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a thin electronic device seal having a light emitting function and a communication function. More specifically, the present invention is applied to a non-digital article that does not move by itself, and a search object or the like is obtained by the light emitting function and the communication function. The present invention relates to a thin electronic device seal that can be applied as a means for searching.

  In everyday life, forgetting items that do not move, such as keys, wallets, glasses, cameras, watches, etc. become. However, depending on the memory, it is necessary to search for the most important places in the room, and in particular, in a dark room at night, the search is made more difficult. Also, if lost outdoors, there is a risk of theft and it is necessary to quickly find out.

  As a means for searching for lost items as described above, in recent years, a tag incorporating an electronic circuit called an IC tag, an electronic tag, or a radio tag (RFID: radio frequency identification) is used. A system that can be attached to an article such as glasses, a camera, a watch, etc., read information embedded in the wireless tag by a wireless tag detector, and can determine the ID code, owner, identity, etc. of the article. In addition, miniaturization of such wireless tags and wireless tag detectors is rapidly progressing.

  Based on such technical trends, a search system is disclosed that searches for and finds the article using a plurality of mobile communication devices when the article attached with the wireless tag is lost (for example, a patent) Reference 1). However, in the above-mentioned system, only the contents of the wireless tag included in the article are simply notified to the mobile terminal as the mobile communication device, and therefore it is not possible to narrow down by the location of the lost item. In reality, the problem was that it was difficult to search.

  For the above problem, a wireless tag, a terminal device that requests a search for a position where the wireless tag exists, a lost item management server device that transmits lost item information, a mobile communication device that receives a response signal from the wireless tag, and the like There has been disclosed a lost article search system that can efficiently search for lost items such as forgotten items and improve the probability of being found (see, for example, Patent Document 2).

  In addition, when an ID (Identification) tag is attached to an article, the information is registered in the ID tag detection means, and when an ID tag that cannot be detected by the ID tag detection means is detected, the information is checked against the registered information. There has been disclosed a forgotten object detection device that informs a person of the forgotten object (see, for example, Patent Document 3).

  In addition, because the process that warns users of misplaced items when they go out, etc., is adaptively performed according to the user's daily behavior, schedule registration process, item registration process, and item search process are performed. An item search system to perform is disclosed (for example, see Patent Document 4).

  However, in the proposed method, the system itself is large and complicated, and in addition, since the wireless tag used is generally expensive, it is a personal article search system used in the home. The system itself is downsized, and a method for searching by a simpler method is desired. In addition, since the wireless tag applied in these has a certain thickness, it lacks flexibility, and thus cannot be stably attached to articles having various curved surfaces. As a result, the wireless tag may be attached or detached in the middle, and the function may not be exhibited. In addition, many wireless tags have only communication means for transmitting location information, and do not have a light emitting function that is visually effective for searching. Therefore, the accuracy of finding lost items at the time of searching is sufficient. It is hard to say that there is.

  Therefore, there is a strong demand for the development of a forgotten thing search tool that is small, thin, inexpensive, can be stably attached to articles having various curved surfaces, and has high accuracy for finding forgotten things.

JP 2002-046821 A JP 2005-003627 A JP 2006-011501 A JP 2011-101241 A

  The present invention has been made in view of the above-described problems and situations, and the solution is to have an ultra-small and thin form, which has a communication function and a light-emitting function, and can be mounted on an article having various curved surfaces. It is an object to provide a thin electronic device seal capable of reliably searching for the position of the device.

  As a result of intensive studies to solve the above problems, the present inventor has at least a thin light emitting member, a thin battery, an information transmitting / receiving means, and an adhesive layer, and has a total thickness of 5.0 mm or less. It has been found that the above-mentioned problems can be solved by a thin electronic device seal, and the present invention has been achieved.

  That is, the subject concerning this invention is solved by the following means.

  1. A thin electronic device seal comprising at least a thin light emitting member, a thin battery, an information transmitting / receiving means and an adhesive layer, and having a total thickness of 5.0 mm or less.

  2. 2. The thin electronic device seal according to item 1, which is attached to an article having no communication function.

  3. 3. The thin electronic device seal according to claim 1 or 2, wherein the total thickness is within a range of 0.3 to 3.0 mm.

  4). The thin electronic device seal according to any one of items 1 to 3, further comprising a thin solar cell.

  5. The thin electronic device seal according to any one of items 1 to 4, further comprising a thin film speaker.

  6). The thin electronic device seal according to any one of claims 1 to 5, wherein the thin light emitting member is a thin organic electroluminescence device.

  7). The thin electronic device seal according to any one of claims 1 to 6, wherein the thin battery is a thin lithium ion battery.

  8). The thin electronic device seal according to any one of items 1 to 7, which has a network address addition function.

  By means of the above-mentioned means of the present invention, a thin electronic device seal that can be mounted on an article having various curved surfaces and can reliably search for the position of an object in an ultra-small and thin form, having a communication function and a light emitting function. Can be provided.

  The technical features of the electronic device having the configuration defined in the present invention and the mechanism of its effects are as follows.

  Conventionally, when an article that does not have a communication function and does not move, for example, a key, a wallet, glasses, a camera, a clock, etc. is misplaced, an IC tag, an electronic tag, or a wireless tag is used as a means for searching for the position. A method to determine the position by attaching information such as a tag and reading information transmitted from the tag is widely used. However, as described above, the previously proposed system itself is large and complicated. In addition, the wireless tags and the like used in these systems are generally expensive and have a thick structure and lack flexibility, so that they can be stably attached to articles having various curved surfaces. I can't. As a result, the wireless tag may be attached or detached in the middle, and the function may not be exhibited. In addition, many wireless tags have only communication means for transmitting location information, and do not have a light emitting function that is visually effective for searching. Therefore, the accuracy of finding lost items at the time of searching is sufficient. It is hard to say that there is.

  Based on such a situation, the present inventors have made extensive studies, and as a result, have a thin battery and an information transmission / reception means, and further, by a very thin component member, a thin light emitting member that has been rapidly developing in recent years. The thin electronic device seal having a total thickness of 5.0 mm or less has been completed.

  The thin electronic device seal of the present invention is extremely thin and flexible, so it can be securely attached to a “non-digital article” that does not have a communication function. The place where the device is placed can be easily found by causing the thin light emitting member, which is a feature of the thin light emitting member, to emit light.

  In addition, by mounting a network address function such as IPv6 on an electronic device seal that is thin, small, and flexible and has a communication function and a light emitting function, which is a feature of the thin electronic device seal of the present invention, A “non-digital article” having no communication function that could not participate in networking can be made to participate in the network. Equipped with a network address function such as IPv6 and linked with a number of thin electronic device seals via the communication function to control the light emission time (flashing) and the light emission color, thereby creating a space effect by light and light It is possible to guide to the target location by.

Schematic exploded view showing an example of the overall configuration of a thin electronic device seal of the present invention Schematic exploded view showing another example of the overall configuration of the thin electronic device seal of the present invention Sectional drawing which shows the structure of the LED light emitting element which is an example of the thin light emission member which concerns on this invention Sectional drawing which shows the structure of the organic electroluminescent device which is an example of the thin light emitting member which concerns on this invention Sectional drawing which shows the structure of the thin lithium ion battery which is an example of the thin battery which concerns on this invention FIG. 1 is a top view and a cross-sectional configuration diagram of the thin electronic device seal illustrated in FIG. The top view and cross-sectional block diagram of another example of the thin electronic device seal of this invention 2 is a top view and a cross-sectional configuration diagram of the thin electronic device seal illustrated in FIG. The figure which shows an example which attached the thin electronic device seal | sticker of this invention to various articles | goods

  The thin electronic device seal of the present invention has at least a thin light emitting member, a thin battery, an information transmitting / receiving means, and an adhesive layer, and has a total thickness of 5.0 mm or less. This feature is a technical feature common to the inventions according to claims 1 to 8.

  As an embodiment of the present invention, from the viewpoint of more manifesting the intended effect of the present invention, by mounting on a non-digital article such as a key, wallet, glasses, camera, watch, etc. that do not have a communication function, With the communication function and the light emitting function of the thin electronic device seal of the present invention, the location can be easily specified when it is misplaced or lost.

  Moreover, it can be set as the electronic device seal | sticker which is thinner and flexible that the total thickness is in the range of 0.3 to 3.0 mm, and an adhesive layer is applied to articles having various curved surfaces. Can be mounted stably.

  Furthermore, having a thin solar cell can provide a charging function, and when a lithium ion secondary battery is used as the thin battery, the battery life due to power storage can be extended. is there.

  Further, the provision of the thin film speaker can notify the place where the article is placed by voice, and can serve as an auxiliary means when searching for an object to be searched.

  In addition, it is preferable to use an organic electroluminescence device as the thin light emitting member from the viewpoint of forming a thin electronic device seal that is small and light, particularly thin and flexible.

  In addition, it is preferable that the thin battery is a thin lithium ion battery from the viewpoint of being able to form a thin electronic device sheet that is small and light, particularly thin, and has flexibility.

  In addition, having a network address addition function, for example, IPv6 (Internet Protocol Version 6), can assign addresses to articles with a number close to an infinite number of about 340 mm, and so far it has been networked. A non-digital product that does not have a communication function that could not be incorporated can participate in the network, and the timing and color of light emission of a very large number of thin electronic device sheets can be controlled. A space can be produced.

  Hereinafter, constituent elements of the present invention and modes and modes for carrying out the present invention will be described in detail with reference to the drawings. In addition, in this application, "-" showing a numerical range is used by the meaning containing the numerical value described before and behind that as a lower limit and an upper limit. In the description of each figure, the number described in parentheses at the end of the constituent element represents the code in each figure.

<< Overall configuration of thin electronic device seal >>
The thin electronic device seal of the present invention has at least a thin light emitting member, a thin battery, an information transmitting / receiving means, and an adhesive layer, and has a total thickness of 5.0 mm or less.

  FIG. 1 is a schematic exploded view showing an example of the overall configuration of the thin electronic device seal of the present invention.

  1A is an overall view of a thin electronic device seal (1) in which the components (I) to (IV) shown in FIG. 1B are assembled, and (9) is a thin light emitting device. It is an illumination window which light-emits by a member (3).

  (B) of FIG. 1 is each structural member of a thin electronic device seal (1), and the upper surface laminate film (2) for protecting an electronic component is arranged on the outermost surface, and on the same plane below it. , A thin light emitting member (3), for example, an organic electroluminescent device (hereinafter abbreviated as an organic EL device) that can be toned, a thin battery (5), for example, a thin lithium ion battery, and an information transmitting / receiving means (4) For example, an electronic component unit (II) constituted by a communication module is arranged. Each of these electronic components is connected by wiring (not shown). In addition, (6) represents the light emission area | region in a thin light emitting member (3).

  Under these electronic component units (II), a bottom laminate film (7) is arranged. Furthermore, an adhesive layer (8) for mounting on an article having no communication function is provided on the entire bottom surface at the bottom.

  The total thickness (T) of the thin electronic device seal (1) constituted by (I) to (IV) of the present invention is characterized by a thin constitution of 5.0 mm or less, more preferably 0.3. Within the range of ~ 3.0 mm. Such thinning can be realized by applying a thin light emitting member (3), preferably an organic EL device, a thin battery (5), preferably a thin lithium ion battery, and a thin information transmitting / receiving means (4). it can.

  In the present invention, a transparent substrate, a first electrode (anode), an organic functional layer, an organic light emitting layer, a second electrode (cathode), and a seal as shown in FIG. A component constituted by a stop member or the like is referred to as an organic electroluminescence element (hereinafter abbreviated as an organic EL element), and a unit in which an organic EL element and a lead-out wiring are formed on a transparent substrate is referred to as an organic EL device.

  FIG. 2 is a schematic exploded view showing another example of the overall configuration of the thin electronic device seal of the present invention.

  The configuration shown in FIG. 2 is the same as that of the thin electronic device sheet shown in FIG. 1 described above in terms of the bottom laminate film (7) and the adhesive layer (8).

  The electronic component unit (II) has a two-layer structure, and the lower layer portion is composed of a communication module which is information transmitting / receiving means (4) and a thin battery (5). In addition to the thin light emitting member (3), the upper layer portion is newly provided with a thin solar cell (10) as power feeding means and a thin film speaker (11) as sound means.

  Corresponding to the configuration of the electronic component unit (II), the upper laminate film (2) receives light into the thin solar cell (10) together with the light irradiation window (9) emitted by the thin light emitting member (3). A light receiving window (12) is provided.

  The thin electronic device seal of the present invention having the above-described configuration is small, light and thin, and has flexibility, and can be attached to an uneven surface or curved surface following its form. It is a preferable form from the point.

The thin electronic device seal of the present invention is characterized in that the total thickness is 5.0 mm or less, preferably in the range of 0.3 to 3.0 mm, more preferably 0.00. The size is in the range of 3 to 1.0 mm. The size is in the range of 1 to 20 mm in the vertical direction and 5 to 50 mm in the horizontal direction from the viewpoint of being attached to an article or the like as a thin seal shape and exhibiting the communication function. More preferably, the length is in the range of 5 to 10 mm and the width is in the range of 10 to 30 nm.

  In the thin electronic device seal of the present invention, the thickness can be reduced by selecting members constituting the electronic component unit (II). That is, in order to reduce the thickness of the thin electronic device seal, the thin light emitting member (3), the information transmitting / receiving means (4), which are the main elements that determine the thickness of the electronic component unit (II), for example, a communication module In addition to the thin battery (5), it is important to limit the thicknesses of the thin solar battery (10) and the thin film speaker (11).

  In the electronic component unit (II), in particular, a thin lithium ion battery having a thickness of 0.5 mm or less is used as the thin battery (5) whose thickness is controlled, and the thin light emitting member (3) has a thickness. The use of an organic EL device of 0.5 mm or less is a particularly preferred embodiment.

  If it is an organic EL device, a thickness of 0.5 mm or less can be realized, and since it is surface emitting, a light guide plate and the like required when using an LED are not required, and a light emitting display member (3) The overall thickness can be reduced.

  On the other hand, in order to supply sufficient power for driving the organic EL element, a lithium ion battery can be used to supply sufficient power for driving the organic EL device even when the thickness is reduced to 0.5 mm or less. It is preferable from the viewpoint of enabling.

  As a result, it is possible to reduce the thickness as a thin electronic device seal and to impart flexibility with a bending radius of 100 mm or less.

  In the thin electronic device seal (1) of the present invention, each constituent member excluding the electronic component unit (II) can easily obtain flexibility with a bending radius of 100 mm or less by selecting a material or the like. For this reason, in the thin electronic device seal (1) of the present invention, at least the lithium ion battery and the information transmission / reception means (4) constituting the thin battery (5) both have flexibility with a bending radius of 100 mm or less, and The organic EL device constituting the light emitting display member (3) preferably has flexibility with a bending radius of 100 mm or less.

<Each component of thin electronic device seal>
First, the thin electronic device seal of the present invention comprises a thin light emitting member, a thin battery, information transmission / reception means, a thin solar cell, a thin film speaker, and the like, and an electronic component unit is laminated on both sides of the electronic component unit. It has a configuration sandwiched between. Further, an adhesive layer for attaching to the article is provided at the bottom.

  Hereinafter, details of main components of the thin electronic device seal of the present invention will be described.

[Thin light-emitting member]
The thin light emitting member according to the present invention is not particularly limited as long as it is a thin light emitting member. For example, a light emitting device using an LED or an organic EL device equipped with an organic EL element can be used. In the invention, an organic EL device including an organic EL element is particularly preferable from the viewpoint of being a surface light emitter, low power consumption, and thinning.

(Light-emitting device equipped with LED)
An example of an LED light-emitting device using an LED applicable to the present invention as a light-emitting light source is shown in FIG.

  In FIG. 3, an LED light emitting device (201) includes an LED light source (203) and a light emitting panel (202) disposed in an optical path from the LED light source (203). The light emitting panel (202) includes an image display layer (207) such as a liquid crystal layer.

  Components such as a substrate for supporting the image display layer (207), electrodes and drive circuits for driving the image display layer, and an alignment film for aligning the liquid crystal layer in the case of the liquid crystal image display layer include In FIG. 4, this is omitted.

  The light emitting panel (202) of the LED light emitting device (201) is provided with a color filter unit (206). In the case of a full-color red, green, blue (RGB) display, the image display panel (202) includes a red color filter (206R), a blue color filter (206B), and a green color as shown in the figure. A plurality of color filter set units (206) including filters (206G) are provided.

  In the LED light emitting device (201), the LED light source (203) includes one or more light emitting diodes (LEDs).

  The LED light emitting device (201) has a light guide (205) as an optical system that allows the light emitting panel (202) to be illuminated substantially uniformly by light from the LED light source (203).

(Organic EL device)
Hereinafter, it is a particularly preferable aspect to use an organic EL device including an organic EL element as a thin light emitting member constituting the thin electronic device seal of the present invention.

  First, the details of the organic EL element constituting the organic EL device which is a thin surface light emitter according to the present invention will be described.

  Various configurations can be applied to the configuration of the organic EL device according to the present invention. For example, the organic EL device may have the following layer structures (i) to (v). Further, the following light emitting layer is preferably composed of a blue light emitting layer, a green light emitting layer and a red light emitting layer.

  Below, the typical example of a structure of an organic EL element is shown.

(I) Anode / hole injection transport layer / light emitting layer / electron injection transport layer / cathode (ii) Anode / hole injection transport layer / light emitting layer / hole blocking layer / electron injection transport layer / cathode (iii) Anode / Hole injection / transport layer / electron blocking layer / light emitting layer / hole blocking layer / electron injection transport layer / cathode (iv) Anode / hole injection layer / hole transport layer / light emitting layer / electron transport layer / electron injection layer / Cathode (v) Anode / hole injection layer / hole transport layer / light emitting layer / hole blocking layer / electron transport layer / electron injection layer / cathode (vi) Anode / hole injection layer / hole transport layer / electron blocking Layer / light emitting layer / hole blocking layer / electron transport layer / electron injection layer / cathode FIG. 4 shows a configuration example of a typical organic EL device.

  The organic EL element (3) shown in FIG. 4 has, for example, a first electrode (32: anode, preferably transparent electrode) on a transparent substrate (31) made of a light-transmitting plastic film or glass. And an organic functional layer unit (C) is formed thereon. The organic functional layer unit (C) includes organic functional layers (33) and (35) such as a hole transport layer, a hole blocking layer, and an electron transport layer in addition to the organic light emitting layer (34). Yes. On this organic functional layer unit (C), for example, a second electrode (36: cathode) is provided, and finally a sealing member (37: sealing layer) is provided as the outermost layer.

  Further, a non-light emitting intermediate layer may be provided between the light emitting layers. The intermediate layer may be a charge generation layer or a multi-photon unit configuration.

  Regarding the outline of the organic EL element applicable to the present invention, for example, JP2013-157634A, JP2013-168552A, JP2013-177361A, JP2013-187221A, JP JP 2013-191644 A, JP 2013-191804 A, JP 2013-225678 A, JP 2013-235994 A, JP 2013-243234 A, JP 2013-243236 A, JP 2013-2013 A. JP 242366, JP 2013-243371, JP 2013-245179, JP 2014-003249, JP 2014-003299, JP 2014-013910, JP 2014-014933 Gazette, JP, 2014-017494, A It can be mentioned configurations described in.

  Furthermore, the detail of the structural member and structural layer which comprise an organic EL element is demonstrated.

<1. Transparent substrate>
Examples of the transparent substrate (31) applicable to the organic EL device according to the present invention include transparent materials such as glass and plastic. Examples of the transparent substrate (31) preferably used include glass, quartz, and a resin film. The term “transparent” as used in the present invention means that the average light transmittance in the visible light region is 60% or more, preferably 70% or more, and more preferably 80% or more.

  Examples of the glass material include silica glass, soda lime silica glass, lead glass, borosilicate glass, and alkali-free glass. On the surface of these glass materials, from the viewpoint of adhesion with adjacent layers, durability, and smoothness, a physical treatment such as polishing, a coating made of an inorganic material or an organic material, or these coatings, if necessary. A combined hybrid coating can be formed.

  Examples of the constituent material of the resin film include polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene, polypropylene, cellophane, cellulose diacetate, cellulose triacetate (TAC), cellulose acetate butyrate, cellulose acetate pro Cellulose esters such as pionate (CAP), cellulose acetate phthalate, cellulose nitrate and their derivatives, polyvinylidene chloride, polyvinyl alcohol, polyethylene vinyl alcohol, syndiotactic polystyrene, polycarbonate, norbornene resin, polymethylpentene, polyether Ketone, polyimide, polyethersulfone (PES), polyphenylene sulfide, police Phones, polyether imides, polyether ketone imides, polyamides, fluororesins, nylon, polymethyl methacrylate, acrylics and polyarylates, cyclones such as Arton (trade name, manufactured by JSR) and Appel (trade name, manufactured by Mitsui Chemicals) An olefin resin etc. can be mentioned.

  In an organic EL element, the structure which provides a gas barrier layer on the transparent base material (3) demonstrated above as needed may be sufficient.

  As a material for forming the gas barrier layer, any material that has a function of suppressing intrusion of water or oxygen that causes deterioration of the organic EL element may be used. For example, an inorganic substance such as silicon oxide, silicon dioxide, or silicon nitride may be used. Can be used. Furthermore, in order to improve the brittleness of the gas barrier layer, it is more preferable to have a laminated structure of these inorganic layers and organic layers made of organic materials. Although there is no restriction | limiting in particular about the lamination | stacking order of an inorganic layer and an organic layer, It is preferable to laminate | stack both alternately several times.

<2. Anode Electrode: Anode>
Examples of the anode constituting the organic EL element include metals such as Ag and Au, alloys containing metal as a main component, CuI, indium-tin composite oxide (ITO), and metal oxides such as SnO ₂ and ZnO. However, a metal or a metal-based alloy is preferable, and silver or a silver-based alloy is more preferable.

  When the transparent anode is composed mainly of silver, the silver purity is preferably 99% or more. Further, palladium (Pd), copper (Cu), gold (Au), or the like may be added to ensure the stability of silver.

  The transparent anode is a layer composed mainly of silver, but specifically, it may be formed of silver alone or an alloy containing silver (Ag). Examples of such alloys include silver / magnesium (Ag / Mg), silver / copper (Ag / Cu), silver / palladium (Ag / Pd), silver / palladium / copper (Ag / Pd / Cu), silver -Indium (Ag.In) etc. are mentioned.

  Among the constituent materials constituting the anode, the anode constituting the organic EL device according to the present invention is a transparent anode composed mainly of silver and having a thickness in the range of 2 to 20 nm. Preferably, the thickness is more preferably in the range of 4 to 12 nm. A thickness of 20 nm or less is preferable because the absorption component and reflection component of the transparent anode can be kept low and high light transmittance can be maintained.

  In the present invention, the layer composed mainly of silver means that the silver content in the transparent anode is 60% by mass or more, preferably the silver content is 80% by mass or more, More preferably, the silver content is 90% by mass or more, and particularly preferably the silver content is 98% by mass or more. The term “transparent” in the transparent anode according to the present invention means that the light transmittance at a wavelength of 550 nm is 50% or more.

  The transparent anode may have a configuration in which a layer composed mainly of silver is divided into a plurality of layers as necessary.

  Further, in the present invention, when the anode is a transparent anode composed mainly of silver, a base layer may be provided at the lower portion from the viewpoint of improving the uniformity of the silver film of the transparent anode to be formed. preferable. Although there is no restriction | limiting in particular as a base layer, It is preferable that it is a layer containing the organic compound which has a nitrogen atom or a sulfur atom, and the method of forming a transparent anode on the said base layer is a preferable aspect.

<3. Intermediate electrode>
The organic EL device according to the present invention has a structure in which two or more organic functional layer units each composed of an organic functional layer group and a light emitting layer are laminated between an anode and a cathode, and two or more organic functions It is possible to adopt a structure in which the layer units are separated by an intermediate electrode layer unit having independent connection terminals for obtaining electrical connection.

<4. Light emitting layer>
The light emitting layer constituting the organic EL element preferably has a structure containing a light emitting material, and the light emitting material is preferably a phosphorescent compound or a fluorescent compound.

  This light emitting layer is a layer that emits light by recombination of electrons injected from the electrode or the electron transport layer and holes injected from the hole transport layer, and the light emitting portion is in the layer of the light emitting layer. Alternatively, it may be the interface between the light emitting layer and the adjacent layer.

  As such a light emitting layer, there is no restriction | limiting in particular in the structure, if the light emitting material contained satisfy | fills the light emission requirements. Moreover, there may be a plurality of layers having the same emission spectrum and emission maximum wavelength. In this case, it is preferable to have a non-light emitting intermediate layer between the light emitting layers.

  The total thickness of the light emitting layers is preferably in the range of 1 to 100 nm, and more preferably in the range of 1 to 30 nm because a lower driving voltage can be obtained. In addition, the sum total of the thickness of a light emitting layer is the thickness also including the said intermediate | middle layer, when a nonluminous intermediate | middle layer exists between light emitting layers.

  For the light emitting layer as described above, a light emitting material and a host compound to be described later may be used by publicly known methods such as a vacuum deposition method, a spin coating method, a casting method, an LB method (Langmuir-Blodget, Langmuir Broadgett method), and an inkjet method. Can be formed.

  In the light emitting layer, a plurality of light emitting materials may be mixed, and a phosphorescent light emitting material and a fluorescent light emitting material (also referred to as a fluorescent dopant or a fluorescent compound) may be mixed and used in the same light emitting layer. The structure of the light-emitting layer preferably includes a host compound (also referred to as a light-emitting host) and a light-emitting material (also referred to as a light-emitting dopant compound), and emits light from the light-emitting material.

<4.1: Host compound>
As the host compound contained in the light emitting layer, a compound having a phosphorescence quantum yield of phosphorescence emission at room temperature (25 ° C.) of less than 0.1 is preferable. Further, the phosphorescence quantum yield is preferably less than 0.01. Moreover, it is preferable that the volume ratio in the layer is 50% or more among the compounds contained in a light emitting layer.

  As the host compound, a known host compound may be used alone, or a plurality of types of host compounds may be used. By using a plurality of types of host compounds, it is possible to adjust the movement of charges, and the efficiency of the organic electroluminescent device can be improved. In addition, by using a plurality of kinds of light emitting materials described later, it is possible to mix different light emission, thereby obtaining an arbitrary light emission color.

  The host compound used in the light emitting layer may be a conventionally known low molecular compound or a high molecular compound having a repeating unit, and a low molecular compound having a polymerizable group such as a vinyl group or an epoxy group (evaporation polymerizable light emitting host). )

  Examples of the host compound applicable to the present invention include, for example, JP-A Nos. 2001-257076, 2001-357777, 2002-8860, 2002-43056, 2002-105445, 2002-352957, 2002-231453, 2002-234888, 2002-260861, 2002-305083, US Patent Application Publication No. 2005/0112407, US Patent Application Publication No. 2009/0030202, International Publication No. 2001/039234, International Publication No. 2008/056746, International Publication No. 2005/089025, International Publication No. 2007/063754, International Publication No. 2005/030900, International Publication 2009 No. 086028, WO 2012/023947, can be mentioned JP 2007-254297, JP-European compounds described in Japanese Patent No. 2034538 Pat like.

<4.2: Luminescent material>
As the light-emitting material that can be used in the present invention, a phosphorescent compound (also referred to as a phosphorescent compound, a phosphorescent material, or a phosphorescent dopant) and a fluorescent compound (both a fluorescent compound or a fluorescent material) are used. Say).

<4.2.1: Phosphorescent compound>
A phosphorescent compound is a compound in which light emission from an excited triplet is observed. Specifically, it is a compound that emits phosphorescence at room temperature (25 ° C.). Although defined as being a compound of 01 or more, a preferable phosphorescence quantum yield is 0.1 or more.

  The phosphorescence quantum yield can be measured by the method described in Spectroscopic II, page 398 (1992 edition, Maruzen) of Experimental Chemistry Course 4 of the 4th edition. The phosphorescence quantum yield in the solution can be measured using various solvents, but when using a phosphorescent compound in the present invention, the phosphorescence quantum yield is 0.01 or more in any solvent. Should be achieved.

  The phosphorescent compound can be appropriately selected from known compounds used for the light emitting layer of a general organic EL device, but preferably contains a group 8-10 metal in the periodic table of elements. More preferred are iridium compounds, more preferred are iridium compounds, osmium compounds, platinum compounds (platinum complex compounds) or rare earth complexes, and most preferred are iridium compounds.

  In the present invention, at least one light emitting layer may contain two or more phosphorescent compounds, and the concentration ratio of the phosphorescent compound in the light emitting layer varies in the thickness direction of the light emitting layer. It may be an embodiment.

  Specific examples of known phosphorescent compounds that can be used in the present invention include compounds described in the following documents.

  Nature 395, 151 (1998), Appl. Phys. Lett. 78, 1622 (2001), Adv. Mater. 19, 739 (2007), Chem. Mater. 17, 3532 (2005), Adv. Mater. 17, 1059 (2005), International Publication No. 2009/100991, International Publication No. 2008/101842, International Publication No. 2003/040257, US Patent Application Publication No. 2006/835469, US Patent Application Publication No. 2006 /. Examples thereof include compounds described in US Patent No. 0202194, US Patent Application Publication No. 2007/0087321, US Patent Application Publication No. 2005/0244673, and the like.

  Inorg. Chem. 40, 1704 (2001), Chem. Mater. 16, 2480 (2004), Adv. Mater. 16, 2003 (2004), Angew. Chem. lnt. Ed. 2006, 45, 7800, Appl. Phys. Lett. 86, 153505 (2005), Chem. Lett. 34, 592 (2005), Chem. Commun. 2906 (2005), Inorg. Chem. 42, 1248 (2003), International Publication No. 2009/050290, International Publication No. 2009/000673, US Pat. No. 7,332,232, US Patent Application Publication No. 2009/0039776, US Pat. No. 6,687,266, US Patent Application Publication No. 2006/0008670, US Patent Application Publication No. 2008/0015355, US Pat. No. 7,396,598, US Patent Application Publication No. 2003/0138667, US Pat. No. 7090928 And the like.

  Also, Angew. Chem. lnt. Ed. 47, 1 (2008), Chem. Mater. 18, 5119 (2006), Inorg. Chem. 46, 4308 (2007), Organometallics 23, 3745 (2004), Appl. Phys. Lett. 74, 1361 (1999), International Publication No. 2006/056418, International Publication No. 2005/123873, International Publication No. 2005/123873, International Publication No. 2006/082742, US Patent Application Publication No. 2005/0260441. U.S. Pat. No. 7,534,505, U.S. Patent Application Publication No. 2007/0190359, U.S. Pat. No. 7,338,722, U.S. Pat. No. 7,279,704, U.S. Patent Application Publication No. 2006/103874, etc. Mention may also be made of the compounds described.

  Furthermore, International Publication No. 2005/076380, International Publication No. 2008/140115, International Publication No. 2011/134013, International Publication No. 2010/086089, International Publication No. 2012/020327, International Publication No. 2011/051404. Further, compounds described in International Publication No. 2011/073149, JP2009-114086, JP2003-81988, JP2002-363552, and the like can also be mentioned.

  In the present invention, preferred phosphorescent compounds include organometallic complexes having Ir as a central metal. More preferably, a complex containing at least one coordination mode of a metal-carbon bond, a metal-nitrogen bond, a metal-oxygen bond, or a metal-sulfur bond is preferable.

The phosphorescent compound described above (also referred to as a phosphorescent metal complex) is described in, for example, Organic Letter, vol. 16, 2579-2581 (2001), Inorganic Chemistry, Vol. 30, No. 8, 1685-1687 (1991), J. Am. Am. Chem. Soc. , 123, 4304 (2001), Inorganic Chemistry, Vol. 40, No. 7, 1704-1711 (2001), Inorganic Chemistry, Vol. 41, No. 12, 3055-3066 (2002) , New Journal of Chemistry. 26, 1171 (2002), European Journal of
It can be synthesized by applying the methods disclosed in Organic Chemistry, Vol. 4, pages 695-709 (2004), and references and the like described in these documents.

<4.2.2: Fluorescent compound>
Fluorescent compounds include coumarin dyes, pyran dyes, cyanine dyes, croconium dyes, squalium dyes, oxobenzanthracene dyes, fluorescein dyes, rhodamine dyes, pyrylium dyes, perylene dyes, stilbene dyes. And dyes, polythiophene dyes, and rare earth complex phosphors.

<5. Organic functional layer group excluding luminescent layer>
Next, each layer other than the light emitting layer constituting the organic functional layer unit will be described in the order of a charge injection layer, a hole transport layer, an electron transport layer, and a blocking layer.

<5.1: Charge injection layer>
The charge injection layer is a layer provided between the electrode and the light emitting layer in order to lower the driving voltage and improve the light emission luminance. “The organic EL element and its industrialization front line (November 30, 1998, NT. The details are described in Chapter 2, “Electrode Material” (pages 123 to 166) of the second edition of “S. Co., Ltd.”, and there are a hole injection layer and an electron injection layer.

  In general, the charge injection layer is present between the anode and the light emitting layer or the hole transport layer in the case of a hole injection layer, and between the cathode and the light emitting layer or the electron transport layer in the case of an electron injection layer. However, the present invention is characterized in that the charge injection layer is disposed adjacent to the transparent electrode. When used in an intermediate electrode, it is sufficient that at least one of the adjacent electron injection layer and hole injection layer satisfies the requirements of the present invention.

  The hole injection layer is a layer disposed adjacent to the anode, which is a transparent electrode, in order to lower the driving voltage and improve the luminance of light emission. “The organic EL element and its industrialization front line (November 30, 1998 (Issued by TS Co., Ltd.) ”, Chapter 2“ Electrode Materials ”(pages 123 to 166) in the second volume.

  The details of the hole injection layer are also described in JP-A-9-45479, JP-A-9-260062, JP-A-8-288069, etc. Examples of the material used for the hole injection layer include: , Porphyrin derivatives, phthalocyanine derivatives, oxazole derivatives, oxadiazole derivatives, triazole derivatives, imidazole derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, hydrazone derivatives, stilbene derivatives, polyarylalkane derivatives, triarylamine derivatives, carbazole derivatives, Inrocarbazole derivatives, isoindole derivatives, acene derivatives such as anthracene and naphthalene, fluorene derivatives, fluorenone derivatives, polyvinylcarbazole, aromatic amines introduced into the main chain or side chain Material or oligomer, polysilane, a conductive polymer or oligomer (e.g., PEDOT (polyethylene dioxythiophene): PSS (polystyrene sulfonic acid), aniline copolymers, polyaniline, polythiophene, etc.) and the like can be mentioned.

  Examples of the triarylamine derivative include benzidine type represented by α-NPD (4,4′-bis [N- (1-naphthyl) -N-phenylamino] biphenyl), and MTDATA (4,4 ′, 4 ″). Examples include a starburst type represented by -tris [N- (3-methylphenyl) -N-phenylamino] triphenylamine) and a compound having fluorene or anthracene in the triarylamine-linked core.

  In addition, hexaazatriphenylene derivatives such as those described in JP-A-2003-519432 and JP-A-2006-135145 can also be used as a hole transport material.

  The electron injection layer is a layer provided between the cathode and the light emitting layer for lowering the driving voltage and improving the light emission luminance. When the cathode is composed of the transparent electrode according to the present invention, Chapter 2 “Electrode materials” (pages 123-166) of the second edition of “Organic EL elements and their forefront of industrialization” (published on November 30, 1998 by NTT) ) Is described in detail.

  The details of the electron injection layer are described in JP-A-6-325871, JP-A-9-17574, JP-A-10-74586, and the like. Specific examples of materials preferably used for the electron injection layer are as follows. Metals represented by strontium and aluminum, alkali metal compounds represented by lithium fluoride, sodium fluoride, potassium fluoride, etc., alkali metal halide layers represented by magnesium fluoride, calcium fluoride, etc. Examples thereof include an alkaline earth metal compound layer typified by magnesium, a metal oxide typified by molybdenum oxide and aluminum oxide, and a metal complex typified by lithium 8-hydroxyquinolate (Liq). Moreover, when the transparent electrode in this invention is a cathode, organic materials, such as a metal complex, are used especially suitably. The electron injection layer is desirably a very thin film, and although depending on the constituent material, the layer thickness is preferably in the range of 1 nm to 10 μm.

<5.2: Hole transport layer>
The hole transport layer is made of a hole transport material having a function of transporting holes. In a broad sense, the hole injection layer and the electron blocking layer also have the function of a hole transport layer. The hole transport layer can be provided as a single layer or a plurality of layers.

  The hole transport material has any of hole injection or transport and electron barrier properties, and may be either organic or inorganic. For example, triazole derivatives, oxadiazole derivatives, imidazole derivatives, polyarylalkane derivatives, pyrazoline derivatives, pyrazolone derivatives, phenylenediamine derivatives, arylamine derivatives, amino-substituted chalcone derivatives, oxazole derivatives, styrylanthracene derivatives, fluorenone derivatives, hydrazone derivatives, Examples include stilbene derivatives, silazane derivatives, aniline copolymers, conductive polymer oligomers, and thiophene oligomers.

  As the hole transport material, those described above can be used, but porphyrin compounds, aromatic tertiary amine compounds and styrylamine compounds can be used, and in particular, aromatic tertiary amine compounds can be used. preferable.

  Representative examples of aromatic tertiary amine compounds and styrylamine compounds include N, N, N ′, N′-tetraphenyl-4,4′-diaminophenyl, N, N′-diphenyl-N, N′— Bis (3-methylphenyl)-[1,1′-biphenyl] -4,4′-diamine (abbreviation: TPD), 2,2-bis (4-di-p-tolylaminophenyl) propane, 1,1 -Bis (4-di-p-tolylaminophenyl) cyclohexane, N, N, N ', N'-tetra-p-tolyl-4,4'-diaminobiphenyl, 1,1-bis (4-di-p -Tolylaminophenyl) -4-phenylcyclohexane, bis (4-dimethylamino-2-methylphenyl) phenylmethane, bis (4-di-p-tolylaminophenyl) phenylmethane, N, N'-diphenyl-N, '-Di (4-methoxyphenyl) -4,4'-diaminobiphenyl, N, N, N', N'-tetraphenyl-4,4'-diaminodiphenyl ether, 4,4'-bis (diphenylamino) c Audriphenyl, N, N, N-tri (p-tolyl) amine, 4- (di-p-tolylamino) -4 '-[4- (di-p-tolylamino) styryl] stilbene, 4-N, N- Examples include diphenylamino- (2-diphenylvinyl) benzene, 3-methoxy-4′-N, N-diphenylaminostilbenzene, N-phenylcarbazole and the like.

  For the hole transport layer, known methods such as vacuum deposition, spin coating, casting, printing including ink jet, and LB (Langmuir Brodget, Langmuir Broadgett) are used as the hole transport material. Therefore, it can be formed by reducing the thickness. Although there is no restriction | limiting in particular about the layer thickness of a positive hole transport layer, Usually, about 5 nm-5 micrometers, Preferably it is the range of 5-200 nm. The hole transport layer may have a single layer structure composed of one or more of the above materials.

  Moreover, p property can also be made high by doping the material of a positive hole transport layer with an impurity. Examples thereof include JP-A-4-297076, JP-A-2000-196140, 2001-102175 and J.P. Appl. Phys. 95, 5773 (2004), and the like.

  Thus, it is preferable to increase the p property of the hole transport layer because an element with lower power consumption can be manufactured.

<5.3: Electron transport layer>
The electron transport layer is made of a material having a function of transporting electrons, and in a broad sense, an electron injection layer and a hole blocking layer are also included in the electron transport layer. The electron transport layer can be provided as a single layer structure or a stacked structure of a plurality of layers.

  In the electron transport layer having a single-layer structure and the electron transport layer having a multilayer structure, an electron transport material (also serving as a hole blocking material) constituting a layer portion adjacent to the light emitting layer is used as an electron transporting material. What is necessary is just to have the function to transmit. As such a material, any one of conventionally known compounds can be selected and used. Examples include nitro-substituted fluorene derivatives, diphenylquinone derivatives, thiopyran dioxide derivatives, carbodiimides, fluorenylidenemethane derivatives, anthraquinodimethane, anthrone derivatives, and oxadiazole derivatives. Furthermore, in the above oxadiazole derivative, a thiadiazole derivative in which the oxygen atom of the oxadiazole ring is substituted with a sulfur atom, and a quinoxaline derivative having a quinoxaline ring known as an electron-withdrawing group can also be used as a material for the electron transport layer. it can. Furthermore, a polymer material in which these materials are introduced into a polymer chain, or a polymer material having these materials as a polymer main chain can also be used.

In addition, metal complexes of 8-quinolinol derivatives such as tris (8-quinolinol) aluminum (abbreviation: Alq ₃ ), tris (5,7-dichloro-8-quinolinol) aluminum, tris (5,7-dibromo-8- Quinolinol) aluminum, tris (2-methyl-8-quinolinol) aluminum, tris (5-methyl-8-quinolinol) aluminum, bis (8-quinolinol) zinc (abbreviation: Znq), etc. and the central metal of these metal complexes A metal complex replaced with In, Mg, Cu, Ca, Sn, Ga, or Pb can also be used as a material for the electron transport layer.

  The electron transport layer can be formed by reducing the thickness of the above material by a known method such as a vacuum deposition method, a spin coating method, a casting method, a printing method including an inkjet method, and an LB method. Although there is no restriction | limiting in particular about the layer thickness of an electron carrying layer, Usually, about 5 nm-5 micrometers, Preferably it exists in the range of 5-200 nm. The electron transport layer may have a single structure composed of one or more of the above materials.

<5.4: Blocking layer>
The blocking layer includes a hole blocking layer and an electron blocking layer, and is a layer provided as necessary in addition to the constituent layers of the organic functional layer unit 3 described above. For example, it is described in JP-A Nos. 11-204258, 11-204359, and “Organic EL elements and their forefront of industrialization” (issued by NTT, Inc. on November 30, 1998). Hole blocking (hole block) layer and the like.

  The hole blocking layer has a function of an electron transport layer in a broad sense. The hole blocking layer is made of a hole blocking material that has a function of transporting electrons but has a very small ability to transport holes, and recombines electrons and holes by blocking holes while transporting electrons. Probability can be improved. Moreover, the structure of an electron carrying layer can be used as a hole-blocking layer as needed. The hole blocking layer is preferably provided adjacent to the light emitting layer.

  On the other hand, the electron blocking layer has a function of a hole transport layer in a broad sense. The electron blocking layer is made of a material that has the ability to transport holes and has a very small ability to transport electrons. By blocking holes while transporting holes, the probability of recombination of electrons and holes is improved. Can be made. Moreover, the structure of a positive hole transport layer can be used as an electron blocking layer as needed. The layer thickness of the hole blocking layer applied to the present invention is preferably in the range of 3 to 100 nm, more preferably in the range of 5 to 30 nm.

<6. cathode>
The cathode is an electrode film that functions to supply holes to the organic functional layer group and the light emitting layer, and a metal, an alloy, an organic or inorganic conductive compound, or a mixture thereof is used. Specifically, gold, aluminum, silver, magnesium, lithium, magnesium / copper mixture, magnesium / silver mixture, magnesium / aluminum mixture, magnesium / indium mixture, indium, lithium / aluminum mixture, rare earth metal, ITO, ZnO, TiO ₂ and an oxide semiconductor such as SnO ₂ .

  The cathode can be produced by forming a thin film of these conductive materials by a method such as vapor deposition or sputtering. The sheet resistance as the second electrode is preferably several hundred Ω / □ or less, and the film thickness is usually selected in the range of 5 nm to 5 μm, preferably 5 to 200 nm.

  In the case where the organic EL element is a double-sided light emitting type in which the emitted light L is extracted also from the cathode side, a cathode having good light transmittance may be selected and configured.

<7. Sealing member>
Examples of the sealing means used for sealing the organic EL element include a method in which a sealing member, a cathode, and a transparent substrate are bonded with an adhesive.

  As a sealing member, it should just be arrange | positioned so that the display area | region of an organic EL element may be covered, and it may be concave plate shape or flat plate shape. Further, transparency and electrical insulation are not particularly limited.

  Specifically, a glass plate, a polymer plate, a film, a metal plate, a film, etc. are mentioned. Examples of the glass plate include soda-lime glass, barium / strontium-containing glass, lead glass, aluminosilicate glass, borosilicate glass, barium borosilicate glass, and quartz. Examples of the polymer plate include polycarbonate, acrylic, polyethylene terephthalate, polyether sulfide, and polysulfone. Examples of the metal plate include one or more metals or alloys selected from the group consisting of stainless steel, iron, copper, aluminum, magnesium, nickel, zinc, chromium, titanium, molybdenum, silicon, germanium, and tantalum.

As the sealing member, a polymer film and a metal film can be preferably used from the viewpoint of reducing the thickness of the organic EL element. Furthermore, the water vapor permeability of the polymer film at a temperature of 25 ± 0.5 ° C. and a relative humidity of 90 ± 2% RH measured by a method according to JIS K 7129-1992 is 1 × 10 ⁻³ g / m ² · The oxygen permeability measured by a method according to JIS K 7126-1987 is preferably 1 × 10 ⁻³ ml / m ² · 24 h · atm (1 atm is 1.01325 × 10 ⁵ a Pa) equal to or lower than a temperature of 25 ± 0.5 ° C., water vapor permeability at a relative humidity of 90 ± 2% RH is preferably not more than ^{1 × 10 -3 g / m 2} · 24h.

  In the gap between the sealing member and the display area (light emitting area) of the organic EL element, an inert gas such as nitrogen or argon, or an inert liquid such as fluorocarbon or silicon oil is injected in the gas phase and liquid phase. It is preferable to do. Further, the gap between the sealing member and the display area of the organic EL element can be evacuated, or a hygroscopic compound can be sealed in the gap.

<8. Organic EL device>
In addition to the organic EL element (3) described above, a drive circuit for driving the organic EL element is disposed in the organic EL device, but the description thereof is omitted here.

<Thin battery>
Next, a thin battery constituting the thin electronic device seal of the present invention will be described.

  As the thin battery applicable to the present invention, any battery can be applied as long as it is thin, and may be a primary battery or a secondary battery. For example, an alkaline storage battery, an organic electrolyte battery, Although a solar cell etc. can be mentioned, in this invention, an organic electrolyte solution battery and also a lithium battery are preferable among these, The lithium ion secondary battery whose thickness is 0.5 mm or less is especially preferable.

  That is, in the present invention, it is preferable to use a lithium ion secondary battery in order to supply sufficient power for driving the organic EL element. In particular, even when the thickness is reduced to 0.5 mm or less, the organic EL element is driven. It is a preferred embodiment to use a film-type lithium ion secondary battery capable of supplying sufficient power.

  The lithium ion battery according to the present invention can be thinned, and may be a primary battery or a secondary battery as long as the driving voltage of the organic EL element can be obtained.

  As a lithium ion battery (primary battery), for example, CF042039 (nominal voltage 3.0 V, discharge capacity 18 mAh, thickness 0.45 mm) manufactured by FDK, CF042722 (nominal voltage 3.0 V, discharge capacity 11 mAh, thickness 0) .45 mm).

  As an example of a lithium ion battery (secondary battery), FIG. 5 shows a configuration of a lithium ion secondary battery.

  A lithium ion secondary battery (20), which is a thin battery (5) shown in FIG. 5, includes a positive electrode current collector (21), a positive electrode active material layer (22), an electrolyte layer (23), a separator (24), and an electrolyte layer. (23) Each layer of a negative electrode active material layer (25) and a negative electrode current collector (26) is laminated, and the periphery is sealed with a sealing material (27). An extraction tag (28: electrode terminal) is connected to the positive electrode current collector (21) and the negative electrode current collector (26), and the extraction tag (28: electrode terminal) is connected to the outside of the sealing material (27). It is formed to extend.

  The thickness T of the lithium ion secondary battery (20) including the sealing material (27) is 0.5 mm or less.

For the electrolyte layer (23), an electrolyte solution in which an electrolyte such as LiPF ₆ is dissolved in a solvent such as a mixed solvent of EC (ethylene carbonate) and EMC (ethyl methyl carbonate) can be used.

  Further, the electrolyte layer (23) may be polymerized in order to prevent breakage of the electrolyte layer (23) and leakage of the electrolyte solution against bending of the flexible secondary battery. For example, the electrolyte layer 23 can be made into a polymer gel by including the electrolyte solution in a polymer polymer such as polyethylene oxide or polyvinylidene fluoride.

  The negative electrode active material layer (25) is made of a conventionally known negative electrode active material. For example, it is composed of an active material such as graphite, a binder, an additive, and the like, and silicon is added as necessary. As the binder of the negative electrode active material layer (25), for example, SBR (styrene butadiene latex) or the like can be used. As an additive of the negative electrode active material layer (25), for example, carboxymethyl cellulose (CMC) that is a thickener can be used.

  For the positive electrode current collector (21), a conventionally known material for a positive electrode current collector, such as Al, can be used.

  As the negative electrode current collector (26), conventionally known materials for negative electrode current collectors such as Cu can be used.

  For the separator (24), for example, polyolefin such as polypropylene or polyethylene can be used.

  As the sealing material (27), a conventionally known sealing material such as multilayer Al and PET (polyethylene terephthalate) film can be used.

A positive electrode active material, a binder, an additive, etc. are used for a positive electrode active material layer (22). It is preferable to use lithium oxide for the positive electrode active material. Examples of the lithium oxide material of the positive electrode active material include LiCoO ₂ , Li (Ni, Co, Mn) O ₂ , LiNi _1/3 Co _1/3 Mn _1/3 O ₂ , LiNiO ₂ , LiFePO ₄ , Li excess oxidation. A thing etc. can be used. Moreover, you may use a sulfur compound as a positive electrode active material. As an additive of the positive electrode active material layer 22, for example, acetylene black which is a conductive agent can be used.

  Moreover, in a thin lithium ion secondary battery (20) of 0.5 mm or less, in order to drive the organic EL element (3), it is preferable to increase the capacity and output of the battery. The increase in capacity of the lithium ion secondary battery (20) can be achieved by increasing the capacity of the positive electrode.

  In order to increase the capacity of the positive electrode, a positive electrode active material containing Mn is used as the positive electrode active material layer (22).

Examples of the positive electrode active material containing Mn include Li (Mn, Co, Ni) O ₂ , LiMnO ₂ , Li (Li, Mn) _1-x Co _x O _2, and Li ₂ MnO ₃ .

By using the positive electrode active material containing Mn, the capacity of the positive electrode can be increased as compared with a positive electrode active material not containing Mn (for example, LiCoO ₂ or the like).

  More preferably, lithium-excess Mn oxide is used as the positive electrode active material.

In Li (Mn, Co, Ni) O ₂ and LiMnO ₂ , the theoretical capacity is about 150 mAh / g.

On the other hand, when Li (Li, Mn) _1-x Co _x O ₂ or Li ₂ MnO _3, which is an excess Mn oxide of lithium, is used as the positive electrode active material, the theoretical capacity is about 250 to 400 mAh / g. To improve.

  The lithium ion secondary battery (20) preferably has higher flexibility. The standard of flexibility is a bending radius of 100 mm or less, preferably a bending radius of 30 mm to 3 mm.

  In order to provide flexibility to the lithium ion secondary battery (20), it is preferable to reduce the package pressure when sealing the secondary battery. For example, the package decompression degree of the lithium ion secondary battery is set to 100 to 1000 Pa. More preferably, it is the range of 200-800 Pa, Most preferably, it is 500 Pa.

  Further, in order to improve the flexibility of the lithium ion secondary battery (20), the positive electrode active material layer 22 may contain a binder (softening agent). More preferably, an acrylic polymer or a diene polymer is used for the binder (softener). A copolymer of an acrylic polymer or a diene polymer and another binder material may be formed. By using an acrylic polymer or a diene polymer as a binder (softener), flexibility can be improved as compared with the case of using other binder materials.

  Specific examples of the acrylic polymer and the diene polymer include butadiene, PTFE (polytetrafluoroethylene), VDF (vinylidene fluoride), TFE (tetrafluoroethylene), and the like.

  Specifically, for example, BM-400 manufactured by Nippon Zeon Co., Ltd. can be used as the binder.

  As a power feeding method to the lithium ion secondary battery (20), wireless power feeding such as an electromagnetic induction method or an electromagnetic resonance method may be used. In the electronic device 10, when wireless power feeding to the power supply unit 13 is performed, a power feeding coil, a capacitor, an antenna, and the like may be provided in the circuit board unit 12 and other regions.

<< Information transmission and reception means >>
The information transmission / reception means (4) applied to the thin electronic device seal of the present invention is not particularly limited as long as it is a communication module having communication and reception functions, and various conventionally known communication devices can be used.

  In the present invention, considering the case of searching for articles such as forgotten items indoors, the communication range is often within the range of 5 to 30 m. For example, a specific example of receiving radio waves from the outside As a typical method, near field communication (NFC) is effective. As NFC applicable to the present invention, ultra-thin Bluetooth (registered trademark) (short-range wireless communication standard: IEEE802.15.1), DECT (Digital Enhanced Cordless Communication), DSRC (Dedicated Short Range Communications, IrDA (Infrared Data Association), thin RFID (Radio Frequency Identification), Transfer Jet, UWB (ultra-wideband wireless communication: IEEE 802.15.13a), ZigBee (wireless microcomputer module: IEEE802.1W.4, etc.) Can be mentioned. In addition, as a method for receiving communication from the information transmitting / receiving means, mobile communication such as GPS, Wi-Fi, Beacon, infrared communication, visible light communication, and cellular phone can be used.

<Thin solar cell>
In the present invention, it is preferable to incorporate a thin solar cell having a charging function.

As the types of solar cells, silicon solar cells include thin silicon type, hybrid type (HIT type), multi-junction type (tandem type), spherical silicon type, field effect type, etc. Are InGaAs solar cells, GaAs solar cells, CIS (chalcopyrite) solar cells, Cu ₂ ZnSnS ₄ (CZTS) solar cells, CdTe-CdS solar cells, InP solar cells, SiGe solar cells , Ge solar cells, ZnO / CuAlO ₂ solar cells, and the like. Examples of organic solar cells include dye-sensitized solar cells and organic thin solar cells.

  Among the above-described various solar cells, an organic thin solar cell is preferable from the viewpoint of realizing thinning. An organic thin solar cell is a solar cell using an organic thin semiconductor combined with a conductive polymer, fullerene or the like. The organic thin-film solar cell has a feature that it is lightweight and can be bent. The thickness is in the range of 0.3 to 1.0 mm.

《Thin film speaker》
In the present invention, it is preferable that a thin film speaker is provided as means for notifying a searcher of an article such as a forgotten item of whereabouts.

  Various types of thin film speakers are commercially available, and examples thereof include a film speaker (manufactured by Kyocera Corporation) having a thickness of about 1 mm in which a piezoelectric element and a resin film are combined. In addition, a 0.7 mm thick piezo film speaker (product name: Smart Sonic Sound) manufactured by applio, a 0.9 mm thick film speaker using functional ceramics manufactured by NEC Corporation, manufactured by Murata Manufacturing Co., Ltd. Examples thereof include a piezoelectric dynamic speaker having a thickness in the range of 0.5 to 1.2 mm.

<Adhesive layer>
The adhesive layer according to the present invention is a layer having a function for adhering the thin electronic device sheet main body of the present invention to a non-digital article that does not have a communication function, such as a key, a wallet, glasses, a camera, and a watch. The resin forming the adhesive layer is not particularly limited as long as it satisfies the above conditions of adhesion, heat resistance and smoothness. For example, polyester resin, urethane resin, acrylic resin, melamine Resin, epoxy resin, polyamide resin, vinyl chloride resin, vinyl chloride vinyl acetate copolymer resin, etc. can be used singly or as a mixed resin. From the viewpoint of weather resistance, polyester resin and melamine resin or polyester Preferred is a mixed resin of a urethane resin and a urethane resin, and a hard resin such as isocyanate that further mixes an isocyanate with an acrylic resin. More preferred if agent mixed with thermosetting resin.

  In addition, when attaching the peelable or peelable thin electronic device sheet body of the present invention, it may function as an adhesive layer, and in its use, a dry laminating agent, a wet laminating agent, Any of an adhesive, a heat seal agent, a hot melt agent and the like are used. As the adhesive, for example, a polyester resin, a urethane resin, a polyvinyl acetate resin, an acrylic resin, a nitrile rubber, or the like is used. The thickness of the adhesive layer or the pressure-sensitive adhesive layer is preferably in the range of about 1 to 100 μm.

<Upper laminated film, lower laminated film>
In the thin electronic device seal (1) of the present invention, at least the thin light emitting member (3), the thin battery (5) and the information transmission / reception means (4), for example, an electronic component unit (b) composed of a communication module are provided. In the sandwich structure, the upper surface laminate film (2) and the lower surface laminate film (7) are disposed on both surfaces, and are laminated with an adhesive or the like to form a sealing structure.

These laminated films are formed of a transparent material or a part of the transparent film. The top laminate film (2) needs to be transparent from the viewpoint of transmitting light emitted from the thin light emitting member (3) to the outside at least at a position (9) corresponding to the light emitting region of the thin light emitting member (3). Similarly, in the configuration illustrated in FIG. 2, when the thin solar cell (10) is provided, the light receiving window (12) region is also transparent to allow sunlight to reach the thin solar cell (10). There is a need.
About another part, it can be set as arbitrary structures regardless of especially transparency and opaqueness. About a lower surface laminate film (7), it can be set as arbitrary structures regardless of transparent and opaque in particular.

  Examples of the material constituting the laminate film according to the present invention include polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene, polypropylene, cellophane, cellulose diacetate, cellulose triacetate (TAC), and cellulose acetate butyrate. Rate, cellulose acetate propionate (CAP), cellulose acetates such as cellulose acetate phthalate, cellulose nitrate and their derivatives, polyvinylidene chloride, polyvinyl alcohol, polyethylene vinyl alcohol, syndiotactic polystyrene, polycarbonate, norbornene resin, poly Methylpentene, polyetherketone, polyimide, polyethersulfone (PES), polypheny Sulfide, polysulfones, polyether imide, polyether ketone imide, polyamide, fluororesin, nylon, polymethyl methacrylate, acrylic and polyarylates, Arton (trade name, manufactured by JSR) and Appel (trade name, manufactured by Mitsui Chemicals) And the like.

《Network address addition function》
The thin electronic device seal of the present invention preferably has a network address adding function.

  In the present invention, it is preferable that the thin electronic device seal of the present invention corresponds to the network address addition function from the viewpoint of allowing a non-digital article having no communication function to participate in the network.

  Specifically, a network address function such as IPv6 (Internet Protocol Version 6) is mounted on the electronic device seal of the present invention having a communication function, a light emitting function, and a voice function, and this is attached to a non-digital article. “Non-digital goods” that have not been able to participate in networking until now and that do not have a communication function can participate in the network. Equipped with a network address function such as IPv6 and linked with a number of thin electronic device seals via the communication function to control the light emission time (flashing) and the light emission color, thereby creating a space effect by light and light It is possible to guide to the target location by.

  IPv6 is a protocol that is currently positioned as the next generation version of IP, which is a standard communication protocol used in the WAN of the Internet and an intra-office LAN. Here, WAN is an abbreviation of Wide Area Network, LAN is an abbreviation of Local Area Network, and IP is an abbreviation of Internet Protocol.

When performing wireless communication or Internet communication, an identifier called an IP address is used. The number of IP addresses that can be assigned with IPv4 is about 4 billion with 32 bits. However, when the addresses are assigned globally, an electronic device seal equipped with a communication function, a light emitting function and a voice function as an article connected to the Internet etc. When registering a large number of articles equipped with the number of addresses, the number of addresses is exhausted, and a sufficient “Internet of Things” cannot be constructed. For such a situation, the use of IPv6 having an IP address of 128 bits is significant because about 2 ¹²⁸ (about 340 cm) of assignable IP addresses can be used. The address of about 340 mm means that there is an address space of 1 trillion times 1 trillion times 340 trillion, and is a number that can allocate IP addresses to almost all articles.

  A communication module equipped with IEEE 802.15.4 can be connected to the IPv6 network. For example, ultra-thin Bluetooth (short-range wireless communication standard: IEEE 802.15.1), UWB (ultra-wideband wireless communication: IEEE 802. 15.13a), a communication module such as ZigBee (wireless microcomputer module: IEEE802.15.4) can be applied. By setting it as such a specification, a global address can be prepared with respect to the articles | goods which provided the thin electronic device seal | sticker of this invention.

That is, as an article search system using IPv6 and using the thin electronic device seal of the present invention,
1) Prepare IPv6 as a global address on the thin electronic device sticker attached to the article to be managed by the communication module. 2) Search for the specified address (IPv6) by a smartphone or personal computer that is a mobile phone. 3) The communication module built in the thin electronic device seal of the present invention receives the signal, sends a current from the thin battery, and emits the organic EL device as the thin light emitting member (3), or Sounds from the thin film speaker to notify the investigator of the location of the article 4) Or the sound emitted from the thin electronic device sticker is caught by the microphone, and the distance and position from the sound source are determined. To the investigator 《Article Search System》
Examples of systems that can be applied to search for items left behind using the thin electronic device seal of the present invention other than those described above are disclosed in, for example, Japanese Patent Application Laid-Open Nos. 2005-3627 and 2005-242509. JP, 2006-11501, JP, 2011-101241, JP, 2013-109685, JP, 2013-201471, JP, 2013-234075, JP, 2014-49051, etc. Reference can be made to the system described and disclosed.

<< embodiment >>
Next, specific configurations and application examples of the thin electronic device seal of the present invention will be described with reference to the drawings.

[Embodiment 1]
FIG. 6 is a top view and cross-sectional view for explaining the configuration of the thin electronic device seal described in FIG. 1 in more detail.

  FIG. 6A is a top view of the thin electronic device seal (1) of the present invention having the same configuration as in FIG. 1A, and a transparent display for light-emitting display in a partial region. A window (9) is formed.

  FIG. 6B shows a configuration similar to that described above with reference to FIG. 1B. The thin light emitting member 3, the information transmission / reception means 4, and the thin battery 5 have an electronic component unit ( II).

  In the electronic component unit (II), the thin light emitting member (3) and the thin battery (5) are connected by the wiring (13), and the information transmitting / receiving means (4), for example, the communication module and the thin battery (5) is also wired. The power for driving is supplied from the thin battery (5) to the thin light emitting member (3) and the information transmitting / receiving means (4).

  The electronic component unit (II) is sandwiched between the upper surface laminate film (2) and the lower surface laminate film (7), and an adhesive layer (8) for attaching to the article is provided below the lower surface laminate film (7). It is arrange | positioned on the whole surface and comprises the thin electronic device seal | sticker (1) of this invention.

  In the thin electronic device seal (1) of the present invention, the total thickness (T) including the top laminate film (2) to the adhesive layer (8) is 5.0 mm or less. However, being in the range of 0.3 to 3.0 mm can be a thinner and more flexible electronic device seal, and can be stably applied to articles having various curved surfaces via an adhesive layer. It is preferable because it can be mounted.

  The thin electronic device seal (1) of the present invention is a non-digital article that does not have a function of moving itself and does not have a communication function, such as a key, a wallet, glasses, Used by attaching to a camera, watch, etc.

  If the thin electronic device sticker (1) of the present invention is left in a room or the like, the mobile phone such as a smartphone or a PC terminal transmits and responds to the information transmission / reception means (4) to confirm the location. Then, the thin light emitting member (3) and the thin battery (5) are driven to emit light, and for example, searching for articles that are left behind in a dark place is supported.

[Embodiment 2]
The configuration of the thin electronic device seal shown in FIG. 7 is another example of the overall configuration of the electronic device of the present invention compared to the configuration of the thin electronic device seal described in FIG. 1, and the display window is the entire surface of the electronic device (1). It is the top view and sectional drawing which show the example which has.

  In FIG. 7, as shown in FIG. 7A, the display window (9) is disposed on the entire upper surface of the electronic device (1).

  FIG. 7B is a cross-sectional view of the electronic component unit (II), in which a thin light emitting member (3), for example, a toned organic EL device is disposed on the entire upper layer portion, and its lower layer. On the same plane of the unit, a communication module as information transmitting / receiving means (4) and a thin battery (5), for example, a thin lithium ion battery are arranged. Similarly to FIG. 6, the thin light emitting member (3) and the thin battery (5) are connected by the wiring (13), and the information transmitting / receiving means (4) and the thin battery (5) are connected by the wiring (13). Driving power is supplied from the thin battery (5) to the thin light emitting member (3) and the information transmitting / receiving means (4).

  Also in the configuration shown in FIG. 7, the total thickness of the thin electronic device seal (1) is 3.0 mm or less.

[Embodiment 3]
FIG. 8 is a top view and a cross-sectional view for explaining the configuration of the thin electronic device seal described in FIG. 2 in more detail.

  FIG. 8 (a) is a top view of the thin electronic device seal (1) of the present invention having the same configuration as that of FIG. 2 (a), and a transparent light for light-emitting display in a partial region. An irradiation window (9) is formed, and a transparent light receiving window (12) of a thin solar cell is further formed.

  (B) in FIG. 8 has a configuration similar to that described above with reference to FIG. 2 (b), and is a lower surface laminate film (component) for the thin electronic device sheet described in FIG. 6 described above. 7) and the adhesive layer (8) are the same.

  The electronic component unit (II) has a two-layer structure, and the lower layer portion is composed of a communication module which is information transmitting / receiving means (4) and a thin battery (5). In addition to the thin light emitting member (3), the upper layer portion is newly provided with a thin solar cell (10) as power feeding means and a thin film speaker (11) as sound means.

  In the electronic component unit (II), the information transmitting / receiving means (4) as the lower layer and the thin battery (5) are connected by the wiring (13), and the thin light emitting member (3) in the upper layer and the thin battery (5 in the lower layer) are connected. ), A thin light emitting member (3) in the upper layer portion, a thin solar cell (10), and a thin film speaker (11) are connected by wiring (13).

  The thin electronic device sticker of the present invention shown in FIG. 8 is used by being attached to a non-digital article that does not have a function of moving and has no communication function, such as a key, a wallet, glasses, a camera, a watch, etc. To do.

  When the thin electronic device seal (1) of the present invention is left in a room or the like, a signal is sent to the information transmission / reception means (4) from a mobile phone such as a smartphone or a PC terminal as described in the first embodiment. Send and respond to confirm location. Further, the thin light emitting member (3) and the thin battery (5) are driven to emit light from the thin electronic device seal (1), and at the same time, the thin film speaker (11) is operated, and the location of the article is also determined by sound. Notify the investigator and help find the item.

[Embodiment 4]
An example in which the thin electronic device seal (1) of the present invention is attached to each article is shown in FIG.

  The thin electronic device seal (1) of the present invention is thin and flexible, and it is “wallet 1” in FIG. 9 (a), “wallet 2” in (b), and “stationery” in (c). , (D) “Clock”, (e) “Camera”, (f) “Keychain”, etc. “Non-digital goods” that do not have communication function can be placed in the remote control It is possible to easily find out where to place the device by making it respond by telephone or the like and causing the thin light emitting member, which is a feature thereof, to emit light, or by sound from a thin film speaker incorporated therein.

[Embodiment 5]
The thin electronic device seal of the present invention is applied to the article searching system described above, and uses the function of emitting light or sound by communication from the outside provided in the thin electronic device seal of the present invention. Thus, it can be applied to various fields.

  By utilizing the network address addition function based on IPv6, the thin electronic device seal of the invention can be applied to an extremely large number of articles, and various light and sound spaces can be produced.

For example,
1) A large number of thin electronic device seals of the present invention are arranged in a passage, etc., and a flow that flashes sound and light along the moving direction to guide a person to a destination 2) Many on the leaves of dark trees A thin electronic device sticker is arranged, and a music light, toning a thin light emitting member, and a voice from a thin film speaker, for example, creates a space where fireflies dance in the dark night 3) Many thin electronic devices in the indoor space A device seal is arranged to produce a gradation of light. The present invention is not limited to the configuration described in the above embodiment, and various modifications and changes can be made without departing from the configuration of the present invention. It is.

  The thin electronic device seal of the present invention is a thin electronic device seal having thinness and flexibility, and can be attached to an article having various curved surfaces, and is suitable as a search object searching tool for surely searching for the location of the search object. Available to:

DESCRIPTION OF SYMBOLS 1 Thin electronic device seal 2, I Top laminated film 3 Thin light emitting member (organic EL device)
4. Information transmission / reception means (communication module)
DESCRIPTION OF SYMBOLS 5 Thin battery 6 Light emission area 7, III Bottom laminated film 8, IV Adhesion layer 9 Lighting window 10 Thin solar cell 11 Thin film speaker 12 Light receiving window 13 Wiring 20 Lithium ion secondary battery 21 Positive electrode collector 22 Positive electrode active material layer 23 Electrolyte layer 24 Separator 25 Negative electrode active material layer 26 Negative electrode current collector 27 Sealing material 28 Removal tag 31 Transparent substrate 32 First electrode (anode)
33, 35 Organic functional layer 34 Organic light emitting layer 36 Second electrode (cathode)
37 sealing member 201 LED light emitting device 202 light emitting panel 203 LED light source 204 optical film 205 light guide 205a light emitting surface 205b light incident surface 206 color filter set unit 206B, 206G, 206R color filter 207 image display layer
II Electronic component unit C Organic functional layer unit

Claims (8)

  A thin electronic device seal comprising at least a thin light emitting member, a thin battery, an information transmitting / receiving means and an adhesive layer, and having a total thickness of 5.0 mm or less.   The thin electronic device seal according to claim 1, wherein the thin electronic device seal is attached to an article not having a communication function.   The thin electronic device seal according to claim 1, wherein the total thickness is in a range of 0.3 to 3.0 mm.   The thin electronic device seal according to any one of claims 1 to 3, further comprising a thin solar cell.   The thin electronic device seal according to any one of claims 1 to 4, further comprising a thin film speaker.   The thin electronic device seal according to any one of claims 1 to 5, wherein the thin light emitting member is a thin organic electroluminescence device.   The thin electronic device seal according to any one of claims 1 to 6, wherein the thin battery is a thin lithium ion battery.   The thin electronic device seal according to any one of claims 1 to 7, further comprising a network address adding function.

Images