JP4678287B2 - Wall mounting method and mounting structure of organic EL panel, and organic EL panel system - Google Patents

Description

  The present invention relates to a method and structure for attaching an organic EL (electroluminescence) panel having an electrode on the back side to a wall surface, and an organic EL panel system in which the organic EL panel system is attached to the wall surface. The present invention relates to a display suitably used for area display or illumination light emission.

If the organic EL panel contains impurities in the semiconductor, the organic EL panel is short-circuited at that point, and the sheet resistance of ITO (transparent electrode) is high. There is a problem that it is difficult to create. Therefore, Patent Document 1 discloses a technique for combining panels of unit areas. According to the prior art, a connector is formed on a single substrate in accordance with the arrangement of a plurality of organic EL panels, and a terminal pin provided on the back side of the organic EL panel is fitted into the connector. An organic EL panel with an area has been created.
JP 2004-69774 A

  Although the above-mentioned conventional technology can be applied when finishing the wall surface in a large rectangular area that meets the standard, the wall surface shape is slightly distorted, for example, like a staircase, or an appropriate size. If there is no panel, there is a problem that it cannot be used.

  Therefore, it is conceivable to attach a necessary number of panels of a unit area originally assembled on the substrate directly to the wall surface. However, in that case, the connector must be provided on the wall surface. Therefore, it is not easy to install the connector on the wall that is struck to the pillar. On the other hand, when the board with the connector attached in advance is attached to the pillar, it can be applied only when building from the wall surface. There is a problem that it is limited to major renovations. Further, once the position of the connector is determined, the position cannot be moved, and there is a problem that the attachment position does not work.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an organic EL panel wall mounting method and mounting structure, and an organic EL panel system, which are flexible in mounting positions and mounting areas, can be easily constructed, and can be retrofitted.

  The wall mounting method of the organic EL panel of the present invention is a method for mounting an organic EL panel having electrodes on the back side to the wall surface, and the first tape material having conductivity is disposed on the wall surface with the electrode spacing of the organic EL panel. A step of attaching to the wall, a step of attaching a second tape material having adhesiveness on both sides to the wall, and a terminal for applying a voltage or signal for light emission or display to at least one end of the first tape material. And a step of attaching an organic EL panel on the first and second tape materials.

  Further, the wall mounting structure of the organic EL panel of the present invention is a structure for mounting an organic EL panel having an electrode on the back side to the wall, and at least one end is connected to a terminal to which a voltage or signal for light emission or display is applied. The first tape material having conductivity is pasted on the wall surface with the electrode interval of the organic EL panel, the second tape material having adhesiveness on both surfaces is pasted on the wall surface, and the organic EL panel on the tape material. The organic EL panel is supported on the wall surface by the second tape material, and a voltage or a signal is supplied to the organic EL panel by the first tape material.

Furthermore, the organic EL panel system of the present invention is an organic EL panel system in which a plurality of organic EL panels are attached to a wall surface, and the organic EL panel is added to the opposite ends on the back side, plus, having respective electrodes of the negative, the laid in the wall in correspondence with each electrode has a conductivity, it is connected to the terminal to which at least one end is provided voltage or signal for light emission or display of the organic EL panel And a second tape material having an adhesive property on both sides and supporting an organic EL panel on a wall surface.

  According to said structure, when attaching the organic EL panel which has an electrode on the back side to a wall surface, it sticks to a wall surface directly with the 2nd tape material which has adhesiveness on both surfaces, and an organic EL panel functions as finishing materials, such as wallpaper Let The voltage or signal for light emission or display is supplied by the first tape material having conductivity, and one end or both ends of the first tape material are at the corners of the wall or the like. The first tape material is attached to the wall surface with the electrode interval of the organic EL panel.

  Therefore, it is particularly suitable when combining a plurality of organic EL panels that are difficult to form in a large area due to uneven brightness, and the organic EL panel is not mounted on a common substrate. The height (mounting area) can be arbitrarily changed by a panel unit size, for example, about 30 cm × 30 cm. In addition, when directly attaching to the wall in units of panels, it is not necessary to make a hole in the wall and attach a connector, allowing flexibility in the attachment position, and comparing the width of the first tape material to the electrode width. If it is possible to realize the expected function even if it is roughly installed within the allowable range of the electrode spacing, it will be extremely easy to construct, and once the terminal can be connected to the end panel side, it will be normal once Finished walls can be easily retrofitted without breaking them.

  Moreover, the wall mounting structure of the organic EL panel of the present invention has a function as the first tape material and the second tape material, and a conductive tape containing a conductive filler in an adhesive applied on a substrate. It is realized by a single material, and the conductive tape material is laid at the electrode interval.

  According to the above configuration, the second tape material for application to the wall surface of the organic EL panel and the first tape material for voltage or signal supply are realized with a single conductive tape material. Easy to install.

Furthermore, in the wall mounting structure of the organic EL panel of the present invention, the second tape material is composed of a double-sided adhesive tape, and the base material of the second tape material has elasticity in the thickness direction. Features.

  According to said structure, even if there are some unevenness | corrugations in a wall surface, it can absorb with the base material of an electroconductive tape material, and the surface of the several organic electroluminescent panel stuck on the wall surface can be made flush | planar. it can.

  Further, in the wall mounting structure of the organic EL panel of the present invention, the electrodes are formed on both edges of the organic EL panel, and the first tape material is commonly used for both electrodes of the adjacent organic EL panels. A voltage or signal is supplied.

  According to said structure, the said electrode is formed in the both edges of an organic electroluminescent panel, and the width | variety of the said 1st tape material is formed larger than the width | variety of two adjacent electrodes, The voltage or signal can be supplied in common to two adjacent organic EL panels with the first tape material. By making the two adjacent electrodes have the same polarity, the two organic EL panels are connected in parallel, and by making the polarities different from each other, they are connected in series with each other. .

  As described above, the organic EL panel wall mounting method and mounting structure and the organic EL panel system according to the present invention are the second tape having adhesiveness on both sides when mounting the organic EL panel having electrodes on the back side to the wall. The organic EL panel functions as a finishing material such as wallpaper, and the voltage or signal for light emission or display is supplied by the first tape material having conductivity.

  Therefore, the mounting area can be arbitrarily changed by the size of the panel unit. In addition, when directly attaching to the wall in units of panels, it is not necessary to make a hole in the wall and attach a connector, allowing flexibility in the attachment position, and comparing the width of the first tape material to the electrode width. If it is possible to realize the expected function even if it is roughly installed within the allowable range of the electrode spacing, it will be extremely easy to construct, and once the terminal can be connected to the end panel side, it will be normal once Finished walls can be easily retrofitted without breaking them.

  FIG. 1 is a perspective view illustrating a part of the wall mounting structure of an organic EL panel according to an embodiment of the present invention. In the present embodiment, for example, an organic EL panel 1 having a basic size of 30 cm × 30 cm is directly attached to the wall surface in an arbitrary number corresponding to a required area.

  FIG. 2 is a cross-sectional view showing one structural example of the organic EL panel 1. The organic EL panel 1 required for the present embodiment only needs to be provided with electrodes 2 and 3 spaced apart from each other on the back side, and an ITO (transparent electrode) 5 for the organic film 4 and an aluminum electrode on the back side. The structure of 6 and the sealing structure with the resin 7 are arbitrary.

  The organic EL panel 1 is generally formed by forming ITO 5 serving as an anode on a glass substrate 8, laminating the organic film 4, and then forming the aluminum electrode 6 serving as a cathode. The ITO 5 and the aluminum electrode 6 are drawn out to one end side and the other end side of the organic EL panel 1 so as not to contact each other, the back surface is covered with a glass plate 9, and the glass substrate 8 After the peripheral edge between the glass plate 9 is hermetically sealed with the resin 7, the electrode 3 connected to the ITO 5 is formed on one end side, and the electrode connected to the aluminum electrode 6 on the other end side 2 is formed. By setting it as such a structure, a non-light-emission area | region can be made into the slight area | region of the peripheral part about the thickness of the electrodes 2 and 3 and the sealing resin 7. FIG.

  Specifically, ITO 5 is formed in a substantially central portion of the glass substrate 8 with a thickness of 1,500 mm and a sheet resistance of 10Ω / □. The glass substrate 8 with ITO5 film was subjected to ultrasonic cleaning with acetone, isopropyl alcohol (both manufactured by Kanto Chemical Co., Ltd.), Semico Clean (manufactured by Furuuchi Kagaku), and ultrapure water for 10 minutes, respectively. Wash with steam and dry. Next, the glass substrate 8 on which the ITO 5 is formed is subjected to surface treatment for 3 minutes by an atmospheric pressure plasma surface treatment apparatus (manufactured by Matsushita Electric Works Co., Ltd.).

Subsequently, using a mask having an opening, 500 μg of Alq3 (4,4′-bis [N- (naphthyl) -N-phenyl-amino] biphenyl (α-NPD)), which is an electron transport material, is further added to the Alq3. A layer doped with 1% by mass of coumarin is vapor-deposited in a thickness of 300 mm, and then 400 nm of Alq3 and 5 g of lithium fluoride (LiF) are evaporated. Subsequently, using a mask having an opening in a direction orthogonal to the ITO pattern, Al is evaporated to a thickness of 1000 mm to form the aluminum electrode 6 to obtain the organic EL panel 1. Further, as a sealing plate, a glass plate 9 having a thickness of 0.5 mm is attached to the glass substrate 8 with an epoxy adhesive (resin 7), and the organic EL panel 1 is sealed. A conductive layer is formed on the outside electrode by a conductive adhesive (3380B manufactured by ThreeBond) to form electrodes 2 and 3.

  When the organic EL panel 1 configured as described above is attached to the wall surface, conductive tape materials 11 to 15 are laid on the wall surface at intervals corresponding to the electrodes 2 and 3 of the organic EL panel 1. The said conductive tape materials 11-15 comprise a conductive filler in the adhesive agent apply | coated on the base material, and while electrically bonding the members of both sides, they are electrically connected. As the conductive tape materials 11 to 15, for example, Nitto Denko KSD-CT-311EG manufactured by Nitto Denko applies an adhesive layer containing a conductive filler on the front and back surfaces of a copper tape, and the copper tape is part of one adhesive layer. It has an exposed structure. Therefore, both sides can be adhered and power can be supplied from the copper tape portion.

  Further, together with the conductive tape materials 11-15, No. 510 double-sided adhesive tape is preferably laminated on the wall side. Therefore, no. 510 adheres, and the organic EL panel 1 has a 311EG adhesive layer adhered thereto, and power supply is secured by a conductive filler and a copper tape. No. The base material of the double-sided adhesive tape 510 has elasticity in the thickness direction. Therefore, even if there are some irregularities on the wall surface, no. The surface of the plurality of organic EL panels absorbed by the substrate 510 and attached to the wall surface can be made flush.

  A terminal 21 is connected to one end or both ends (one end in FIG. 1) of the conductive tape material 11 to 15 at a corner of the wall or the like. The terminal 21 is connected to a power source or a signal source (a power source 23 in FIG. 1) via a lead wire 22, and is supplied with a voltage or signal for light emission or display of the organic EL panel 1. The voltage applied between the electrodes 2 and 3 of the organic EL panel 1 is, for example, about 20 V for lighting applications. When a plurality of the organic films 4 are laminated in order to obtain a required luminance, It is a value obtained by multiplying 20V by the number of sheets.

  The width of the conductive tape material 11 to 15 should be wider than the width of the electrodes 2 and 3 of the organic EL panel 1 to be supported, and the wider the width, the higher the adhesive strength and the lower the resistance. Furthermore, the wider the width of the conductive tape material 11 to 15, the rougher the work (if the conductive tape material 11 to 15 is laid at a rough position likely to correspond to the electrodes 2 and 3), the electrode 2 , 3 can be securely connected. However, if it is too wide, the conductive tape material 11-15 will be in contact with the electrodes 3 and 2 of opposite polarities, such as when the conductive tape material 11-15 is distorted (diagonally), so the conductive tape material 11 The width of ˜15 may be appropriately selected according to the width of the electrodes 2 and 3.

  Further, since the electrodes 2 and 3 are formed on both edges of the organic EL panel 1, in the example of FIG. 1, two organic EL panels 1 are adjacent to each other as shown by the conductive tape materials 12-14. The widths of the conductive tape materials 12 to 14 are formed to be equal to or greater than the width of the two sheets, and the voltage or signal may be supplied to both the electrodes 2 and 3 in common. By comprising in this way, the said voltage or signal can be supplied to two adjacent organic electroluminescent panels in common with the one conductive tape material 12-14.

  Here, as shown in FIG. 1, the two adjacent organic EL panels 1 are connected in parallel by setting the two adjacent electrodes to have the same polarity. 3 is connected to the positive electrode of the power source 23, and the conductive tape members 12, 14 to which the electrode 2 serving as the cathode is connected are connected to the negative electrode of the power source 23). On the other hand, the organic EL panels 1 are connected in series with each other by making the two adjacent electrodes have different polarities. In that case, the conductive tape members 12 to 14 in the middle perform current feeding between the adjacent organic EL panels 1 and the terminals 21 do not necessarily have to be connected. In the case of lighting applications, the organic EL panels 1 are connected in series according to the current capacity that can be supplied by the conductive tape materials 11 to 15 laid on the wall surface, the loss in the conductive tape materials 11 to 15, or the safety. It is only necessary to appropriately select whether to connect to each other, to connect in parallel, or to make a series-parallel combination.

  As described above, in the present embodiment, when the organic EL panel 1 having the electrodes 2 and 3 on the back side is attached to the wall surface, the conductive tape materials 11 to 15 having adhesiveness on both sides are directly attached to the wall surface, Since the EL panel functions as a finishing material such as wallpaper, and the voltage or signal for light emission or display is also supplied by the conductive tape materials 11 to 15, it is difficult to form a large area because luminance unevenness is likely to occur. This can be particularly preferably performed when a plurality of EL panels 1 are combined, and the mounting area can be arbitrarily changed by the size of the panel unit.

  Further, when directly attaching to the wall in units of panels, it is not necessary to make a hole in the wall and attach a connector, allowing flexibility in the attachment position, and making the width of the conductive tape materials 11 to 15 the electrodes 2, 3 By enlarging to a certain extent compared to the width of the electrode, even if it is roughly constructed within the allowable range of the distance between the electrodes 2 and 3, the expected function can be realized, and the construction of the end panel is extremely easy. If the terminal 21 can be connected to the side, it can be easily retrofitted to a once finished wall without breaking it. Furthermore, it can be constructed in a short time without waiting for the adhesive to dry in the dry construction.

  In the organic EL panel 1, a first tape material having conductivity is laid on the electrodes 2 and 3, and a second tape material having adhesiveness is applied to other appropriate portions such as the center portion of the panel. By laying, the electrical connection and the mechanical connection may be realized by different tape materials. However, using the single conductive tape materials 11 to 15 having the functions of these two tape materials further facilitates the construction.

  Moreover, the structure of this invention can sell as an organic electroluminescent panel system which combined the electroconductive tape materials 11-15 for exclusive use which have such electroconductivity, adhesive force, and elasticity with the organic electroluminescent panel 1. FIG. desirable. As a result, it is possible to suppress current (illuminance) shortage, heat generation, and decrease in mechanical strength caused by using a nonstandard tape material.

1 is a perspective view illustrating a part of a wall mounting structure of an organic EL panel according to an embodiment of the present invention. It is sectional drawing which shows one structural example of the organic electroluminescent panel shown in FIG.

Explanation of symbols

1 Organic EL panel 2, 3 Electrode 4 Organic film 5 ITO
6 Aluminum electrode 7 Resin 8 Glass substrate 9 Glass plate 11-15 Conductive tape material 21 Terminal 22 Lead wire 23 Power supply

Claims (6)

In a method for attaching an organic EL panel having an electrode on the back side to a wall surface,
A step of attaching a first tape material having conductivity to a wall surface at an electrode interval of the organic EL panel;
A step of applying a second tape material having adhesiveness to both surfaces to the wall surface;
Connecting a terminal for applying a voltage or a signal for light emission or display to at least one end of the first tape material;
And a step of attaching the organic EL panel on the first and second tape materials. In the structure for attaching an organic EL panel having an electrode on the back side to the wall surface,
At least one end is connected to a terminal to which a voltage or signal for light emission or display is applied, and a first tape material having conductivity is attached to a wall surface with an electrode interval of the organic EL panel,
Paste the second tape material with adhesive on both sides to the wall,
By sticking an organic EL panel on the tape material, the organic EL panel is supported on the wall surface by the second tape material, and a voltage or a signal is supplied to the organic EL panel by the first tape material. A wall mounting structure of an organic EL panel characterized by   The function as the first tape material and the second tape material is realized by a single conductive tape material containing a conductive filler in an adhesive applied on a substrate, and the conductive tape material is used as the electrode. The wall mounting structure for an organic EL panel according to claim 2, wherein the structure is installed at intervals. It said second tape material consists double-sided adhesive tape, the wall mounting structure of the organic EL panel according to claim 2, wherein the substrate in the second tape material has an elasticity in the thickness direction.   3. The electrode is formed on both edges of the organic EL panel, and the first tape material supplies the voltage or signal in common to both electrodes of the organic EL panel adjacent to each other. Wall mounting structure of organic EL panel of any one of -4. An organic EL panel system in which a plurality of organic EL panels are attached to a wall surface,
The organic EL panel has positive and negative electrodes at opposite ends of the back surface,
A first tape material laid on a wall surface corresponding to each electrode and having conductivity , at least one end connected to a terminal to which a voltage or signal for light emission or display of the organic EL panel is applied;
An organic EL panel system comprising a second tape material having adhesiveness on both sides and supporting the organic EL panel on a wall surface.

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