JP2016219226A - Organic EL light-emitting display board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simply configured display board having excellent designability in which a display object is clearly observed by an observer with a floating up impression by utilizing unique features for an organic EL light-emitting region.SOLUTION: An organic EL light-emitting display board includes an organic EL light-emitting panel and a display object. A light-emitting region of the organic EL light-emitting panel is observed as a mirror plane during blackout. The display object has a mirror plane opposite to the light-emitting region-side mirror plane as a display object back-side mirror plane. The organic EL light-emitting display board further includes a transparent medium having a thickness of 1 mm or more and including the display object in a plan view, which is arranged between the light-emitting region-side mirror plane and the display object back-side mirror plane.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an organic EL light-emitting display panel, and more particularly to a display panel having excellent design characteristics that makes use of the characteristics of an organic EL light-emitting panel.

In recent years, organic EL light-emitting panels have attracted attention as a light-emitting device that can replace incandescent lamps and fluorescent lamps, and many studies have been made. Here, the organic EL light emitting panel is a panel including a light emitting surface including a light emitting region corresponding to a light emitting portion of the element including an organic EL light emitting element that emits light in a thin and planar shape. In general, an organic EL light-emitting element is formed on a substrate such as a glass substrate or a transparent resin film / metal sheet as a base material, and one or both of them have translucency and an opposing electrode, And a sandwiched functional layer. Here, the functional layer is a multi-layered film, which is generally a thin film, including an organic compound and including a light emitting layer. Such an organic EL light emitting element is generally a sealing glass cap having a concave depression formed thereon, an inorganic insulating film such as SiO ₂ or SiN formed on the organic EL light emitting element, or Sealing is performed with a sealing film made of an organic insulating film or the like. In this way, the organic EL light emitting panel is manufactured. When power is applied between the electrodes, electrons and holes that are electrically excited in the organic EL light emitting element are recombined, the light emitting portion emits light, and the corresponding diffused light is emitted from the light emitting region. Is done. In this way, an organic EL light-emitting panel that emits light light and in a planar shape can be obtained.

  On the other hand, in recent years, in response to the generalization of LED light sources, development of display devices including a light source capable of stereoscopic display has been progressing. For example, Patent Document 1 has a front plate that transmits light on the display surface (a half mirror film is applied to a transparent resin flat plate), and characters and figures are formed between the back plate (a reflective material film is applied to a flat plate). The display panel is configured in such a manner that the display itself uses a pattern itself or a hollowed out pattern, and an LED or EL element light source is arranged on the end face of the display panel. A display device capable of display is disclosed.

JP 2012-189969 A

  However, in Patent Document 1, it is necessary to dispose an LED or EL element light source on the end face of the display panel, and its design and manufacture require complicated work, and a pattern to be displayed is actually created in three dimensions. Further, since the light from the light source is not directly observed by the observer of the display panel, there is a problem that the display may be inferior in vividness.

  The present invention has been made in view of such problems of the prior art, and has a simple configuration by utilizing the characteristic that the organic EL emission region is a mirror surface and the fact that the organic EL emission is diffused light. Thus, a display board having excellent design properties that allows the observer to observe the display object with a bright and emerging impression is provided.

  Further, in the present specification, as another invention of the organic EL light emitting display panel, the form related to the display object described later is recognized by the observer by the light emission of the organic EL light emitting element included therein, and is not recognized when the light is not emitted. The description of another invention about a display board is included.

  As a result of intensive studies in view of the above problems, the present inventors have found that the above-mentioned problems of Patent Document 1 can be solved by using an organic EL light emitting panel characterized by soft diffused light irradiation. By studying, the present invention has been completed.

  That is, the present invention is an organic EL light emitting panel including a light emitting region, and an organic EL light emitting display panel including a display object, the light emitting region has a light emitting region side mirror surface that is observed as a mirror surface when the light is turned off, The display object has a mirror surface facing the light emitting region side mirror surface as a display object back surface side mirror surface on the back surface side, and further, between the light emitting region side mirror surface and the display object back surface side mirror surface, The present invention relates to an organic EL light-emitting display panel having a thickness of 1 mm or more and including a transparent medium including the display in plan view. In the present invention, the brightness of the display object corresponding area in the light emitting area corresponding to the display object becomes brighter than the surrounding area, and the display object corresponding area is observed through the display object. An organic EL light-emitting display panel having an excellent design capable of giving an impression can be provided. That is, in such an organic EL light emitting display panel of the present invention, it is possible to form an opposite mirror surface state in which the emitted light and the reflected light are confined in the display object corresponding region, and this action causes the above-described display object floating according to the present invention. An impression imparting effect is obtained, and it is possible to display with a sense of depth.

  The transparent medium preferably includes the entire surface of the light emitting region in a plan view and includes a transparent resin plate or a transparent glass plate, and ensures the integrity of the organic EL light emitting display plate of the present invention. The organic EL light emitting panel can be protected from the occurrence of damage.

  In addition, the display object includes a main body, a mirror surface member, and a transparent adhesive member from the front surface side to the back surface side, and the mirror surface member is interposed between the transparent medium and the transparent adhesive member. It is preferably observed as a back-side mirror surface, and the display object can be easily adhered.

  In addition, the display object is preferably a flat plate having a thickness of 1 cm or less, which enables three-dimensional display despite the absence of a protruding portion protruding on the surface and leads to the realization of a thin display plate.

  Furthermore, the present invention is a method for manufacturing an organic EL light-emitting display plate, which in turn is a sheet-shaped main body member on the display object placement surface of the transparent medium corresponding to the light-emitting area, A mirror bonding member and a sheet bonding step of mounting and bonding the laminated sheet of the transparent adhesive member, and from the laminated sheet, other than the main body and the corresponding mirror surface member and the transparent adhesive member. The organic EL light-emitting display panel of the present invention can be produced at a low cost by a simple method with respect to a method for producing an organic EL light-emitting display board including a sheet removing step for removing an unnecessary laminated sheet.

  Another invention is an organic EL light emitting panel including a light emitting region, an organic EL light emitting panel, a display object, and a light scattering surface member, and the light emitting region is observed as a mirror surface when the light is turned off. The display has a side mirror surface, the display object is disposed between the light emitting region and the light scattering surface member and is opaque, and the light scattering surface translucent member scatters incident light from the outside. The present invention relates to an organic EL light-emitting display panel that has a function and does not recognize the form related to the display object to the outside when the light is turned off, and recognizes the form related to the display object to the outside when the light is turned on.

  In this another invention, an opaque display object made of a material that does not transmit light from the light emitting region side, and a display object whose form is recognized by an observer when it is turned on, for example, a design of a character or a picture, is arranged. Next, it is a light-scattering surface translucent member that does not allow the above-described form, that is, the above-described characters and pictures to be recognized externally when light is turned on and turned off, and scatters incident light from the outside. A light scattering surface translucent member having a function is disposed.

  When turned off, the light-scattering surface translucent member is observed as a flat plate, for example, white if it is a colorless light-scattering surface translucent member, and when turned on, characters and pictures look like shadows. Will be displayed on the display board. By combining such a display panel and wireless power feeding technology, it is possible to give a surprise and impression at the time of lighting to a thin and light luminaire.

  Further, when creating a display pattern, it is not necessary to operate a program or the like as with a display, and it can be easily processed and created on the spot. For example, it is possible to use a picture written by a child.

  The light-scattering surface translucent member preferably has a function of increasing the amount of light irradiation to the outside due to the presence thereof, and can be a display panel with high luminance.

  According to the organic EL light-emitting display panel of the present invention, the display object emerges with a simple configuration that can be created by a simple method, utilizing the fact that the organic EL light-emitting region is a mirror surface and emitting diffused light. It is possible to provide a display panel with excellent design that gives a good impression.

It is sectional drawing which shows one Embodiment of the organic electroluminescent light emission display board 1 of this invention. It is the photograph (perspective view) of the organic electroluminescent light emission display board 1 of the Example of the lighted state.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

(Organic EL display panel 1)
FIG. 1 is a cross-sectional view showing an embodiment of the organic EL light-emitting display panel 1 of the present invention.

  As shown in FIG. 1, the organic EL light-emitting display panel 1 of the present invention includes a display object 30 and an organic EL light-emitting panel 10. The organic EL light-emitting panel 10 includes a light-emitting region 12 on a light-emitting surface, and the display object 30 is disposed on the light-emitting surface side, and together with the light-emitting surface, includes a group of characters, figures, symbols, and three-dimensional shapes. It has a function of allowing an observer on the light emitting surface side to observe one or more selected.

  The organic EL light-emitting display panel 1 of the present invention can have an outer shape viewed from the observer side as a triangle, a rectangle including a square, another polygon, or an ellipse including a perfect circle. From the viewpoint of making it more compact, the outer shape is preferably similar to the outer shape of the light emitting region 12. In addition, the area ratio of the light emitting region 12 in the outer shape is preferably 10% or more and 100% or less, more preferably 30% or more and 95% or less, and further preferably, from the viewpoint of being applicable to a large display object 30. 50% or more, particularly preferably 70% or more. Furthermore, although the light emitting region 12 can be a continuous region in the outer shape in plan view, it can be a plurality of regions or an annular light emitting region 12 including a non-light emitting region.

  As the thickness of the organic EL light emitting display panel 1 of the present invention, from the viewpoint of sufficiently exerting the display object floating impression imparting effect which is the effect of the present invention while taking advantage of the thinness and lightness of the organic EL light emitting panel 10. The maximum length of the outer shape is preferably not more than 3, more preferably not less than 3 mm and not more than 300 mm, still more preferably not less than 5 mm and not more than 150 mm, particularly preferably not more than 50 mm.

  Similarly, the organic EL light emitting display panel 1 of another invention includes a display object 30 and an organic EL light emitting panel 10. The organic EL light emitting panel 10 of another invention includes a light emitting region 12 on a light emitting surface thereof, and the display object 30 is arranged on the light emitting surface side and includes at least one selected from the group consisting of characters, figures, and symbols. And has a function of allowing the observer on the light emitting surface side to observe.

  The outer shape of the organic EL light-emitting display panel 1 of another invention viewed from the observer side is the same as that of the present invention, and the light emitting region 12 can be a continuous region in the outer shape in plan view. A plurality of regions or an annular light-emitting region 12 including a non-light-emitting region can be used.

  As the thickness of the organic EL light-emitting display panel 1 of another invention, from the viewpoint of sufficiently exerting the display object floating impression imparting effect which is the effect of the present invention while taking advantage of the thinness and lightness of the organic EL light-emitting panel 10. The thickness is preferably 0.2 mm or more and 10 mm or less, more preferably 0.5 mm or more and 5 mm or less.

(Display object 30)
The display object 30 according to the present invention actually constitutes, together with the light emitting surface, one or more types selected from the group consisting of characters, figures, symbols, and three-dimensional shapes that can be observed by the above-described observer. A main body 31 is included, and the main body 31 is present between the surface side 311 on the viewer side of the display object 30 and the back side 321 on the opposite side.

  As one of the features of the display object 30 according to the present invention, the back surface side 321 further includes a display object back surface side mirror surface 322 as a mirror surface facing a light emitting region side mirror surface 122 described later. Between these mirror surfaces, the diffused light characteristic of the organic EL light emitting element 11 according to the present invention, which is emitted from the light emitting region 12 according to the present invention, is confined. An imparting effect will be produced.

  The display object rear surface side mirror surface 322 may form the main body 31 as a material having a metallic luster, for example, an aluminum foil. Preferably, a mirror surface member 32 different from the main body 31 is formed on the rear surface of the main body 31. It is preferable that the display surface rear surface side mirror surface 322 be formed at a low cost, and the main body 31 has beautiful and vivid colors, for example, primary colors such as gold, pink, purple, emerald green, etc. The design property of the organic electroluminescent light-emitting display panel 1 of this invention can be improved further by using the material which has.

  As described above, the display object 30 according to the present invention includes the main body 31 and preferably includes the mirror member 32 from the front surface side 311 toward the back surface side 321. Furthermore, it is preferable that the transparent adhesive member 33 is included. When a member made of a transparent material is used as the transparent medium 20 according to the present invention to be described later, the display object 30 according to the present invention is simply replaced with the organic EL according to the present invention. It becomes possible to arrange | position to the light emission display board 1. FIG. The main body 31, the mirror member 32, and the transparent adhesive member 33 have the main body 31 in plan view from the observer according to the present invention from the viewpoint of effectively achieving the display object floating impression imparting effect according to the present invention. Is preferably included in the mirror member 32, more preferably disposed in the same region as the mirror member 32. The mirror member 32 preferably includes a transparent adhesive member 33, and more preferably, It is arranged in the same area as the transparent adhesive member 33.

  The mirror surface member 32 is a member that is observed as the display object rear surface side mirror surface 322 from the rear surface side 321 of the display object 30 according to the present invention, or is virtually observed from the light emitting region 12 side according to the present invention. , A member observed as a display object rear surface side mirror surface 322 through a transparent medium 20 and a transparent adhesive member 33 described later, and a material having a metallic luster excellent in light reflectivity can be used. . From the viewpoint of allowing the display object floating impression imparting effect according to the present invention to be sufficiently exhibited by reflecting light of a wider wavelength, a metal having a white metallic luster is preferable, among which aluminum that is easily available, It is more preferable that it is at least one selected from silver and silver, and cheaper aluminum is preferable. The thickness is preferably 1 mm or less, 5 μm or more, more preferably 0.5 mm or less, 10 μm or more, 0.25 mm or less, 20 μm or more. Is more preferable.

  The display object 30 according to the present invention has a thickness from the viewpoint of sufficiently exerting the display object floating impression imparting effect which is an effect of the present invention while taking advantage of the thinness and lightness of the organic EL light emitting panel 10. , Preferably 0.01 mm or more and 50 mm or less, more preferably 0.05 mm or more and 20 mm or less, particularly preferably 10 mm or less, preferably including the main body 31, the mirror surface member 32, and the transparent adhesive member 33. It is the lamination sheet 34 which is a flat plate whose thickness is 1 cm or less.

  The laminated sheet 34 serving as such a display object 30 is composed of a laminated sheet 34 composed of a sheet-shaped main body member 31, a mirror surface member 32, and a transparent adhesive member 33, a main body 31, and a corresponding mirror surface member, The unnecessary laminated sheet 342 other than the transparent adhesive member 341 can be removed.

  Thus, the organic EL light-emitting display panel 1 of the present invention can be easily produced by using the display object 30 obtained by removing the unnecessary laminated sheet 342 from the laminated sheet 34.

  As a method for producing the organic EL light emitting display panel 1 of the present invention using such a laminated sheet 34, a sheet adhering step for mounting and adhering the laminated sheet 34, and a sheet for removing the unnecessary laminated sheet 342 from the laminated sheet 34 are provided. It is preferable that the manufacturing method includes a removing step. The organic EL light emitting display panel 1 of the present invention can be easily produced, and the unnecessary laminated sheet 342 is removed after bonding, so that even in a complicated form, it is actually It becomes the display board 1 which can display the form which is excellent in the designability which can also be adjusted while displaying.

  The display object 30 according to another invention includes a main body 31 that blocks at least a certain amount of light from the light emitting surface. The main body 31 includes a surface side 311 on the viewer side of the display object 30 and an opposite side thereof. It exists between the back side 321. The main body 31 according to another invention is preferably white on the surface side 311 so that the presence of the main body 31 is not recognized by an observer when the light is turned off. As the main body 31 according to another invention, paper is preferable.

  The display object 30 according to another invention is preferably formed by disposing a light shielding member 32 different from the main body 31 on the back surface side of the main body 31 on the back surface side 321 and is completely turned on when lighting. In addition, since the light from the light emitting region 12 can be blocked, it is possible to display vividly, so that the design of the organic EL light emitting display panel 1 of another invention can be further enhanced. The light shielding member 32 according to another invention is preferably an aluminum foil.

  As described above, the display object 30 according to another invention includes the main body 31 and preferably includes the shielding member 32 from the front surface side 311 toward the back surface side 321. Furthermore, it is preferable that the adhesive member 33 is included, and the display object 30 according to another invention can be easily arranged on the organic EL light-emitting display panel 1 of the present invention.

  The display object 30 according to another invention has the same thickness as the display object 30 according to the present invention.

  The laminated sheet 34 serving as such a display object 30 is composed of a laminated sheet 34 composed of a sheet-like main body member 31, a shielding member 32, and an adhesive member 33. The unnecessary laminated sheet 342 other than the adhesive member 341 can be removed.

  Thus, the organic EL light emitting display board 1 of another invention can be easily produced by using what removed the said unnecessary lamination sheet 342 from the lamination sheet 34 as the display thing 30. FIG.

  The method for producing the organic EL light emitting display panel 1 of another invention using such a laminated sheet 34 can be the same as the method for producing the organic EL light emitting display board 1 of the present invention.

(Transparent medium 20)
The transparent medium 20 according to the present invention is disposed between a light emitting area side mirror surface 122 and a display object back surface side mirror surface 322, which will be described later, and corresponds to the light emitting area 12 and has a display object mounting surface 202 in contact with the display object 30. Including, it is a part having a function of the lifting thickness according to the display object levitation impression imparting effect of the present invention, may be included if it is transparent, from the viewpoint of sufficiently exhibiting the effect of the present invention, Its thickness is 1 mm or more.

  The thickness of the transparent medium 20 is required to be 1 mm or more as described above, and the thinness and lightness of the organic EL light-emitting panel 10 can be achieved while sufficiently exerting the display object floating impression imparting effect of the present invention. From the viewpoint of utilizing the above, it is preferably 2 mm or more and 100 mm or less, more preferably 5 mm or more and 50 mm or less, and particularly preferably 20 mm or less.

  As the organic EL light emitting panel 10 according to the present invention, the transparent medium 20 includes the organic EL light emitting element 11 according to the present invention formed on a transparent substrate which is a preferred embodiment thereof, and includes a light emitting region 12 on the surface of the transparent substrate. When the bottom emission type organic EL light emitting panel 10 is used, it includes at least the transparent substrate corresponding to the light emitting region 12, and the display object 30 according to the present invention is transparent as a preferred embodiment. When the adhesive member 33 is included, the transparent adhesive member 33 is also included, and more preferably, a transparent resin plate or a transparent glass plate is included. Thus, by including the transparent plate, the organic EL according to the present invention is included. The light-emitting display board 1 can be made as an integral member, for example, a specific member such as a nameplate, and the display object mounting surface 202 is one side of these transparent plates. It is, method of manufacturing the organic EL light-emitting display panel 1 of the present invention described above is applicable.

  Examples of the resin of the transparent resin plate include one or more selected from acrylic resin, PET resin, polycarbonate resin, and PVC resin, but acrylic resin is more preferable from the viewpoint of optical properties, weather resistance, and chemical resistance. preferable.

  When viewed from the observer, it is necessary to make the transparent medium 20 surround the display object 30 so that the periphery of the display object is visible. It is necessary to include the object 30, and more preferably, it includes the entire surface of the light emitting region 12 in a plan view.

(Organic EL light emitting panel 10)
The organic EL light-emitting panel 10 according to the present invention is a plate-like member including the organic EL light-emitting element 11, and one of the features of the present invention is that the organic EL light-emitting element 11 is disposed on the light-emitting surface that is one main surface thereof. The light emitting region side mirror surface 122 that is observed as a mirror surface from the light emitting surface side when the light is turned off is provided as the light emitting region 12 corresponding to the organic EL light emitting element 11.

  A display that gives the impression that the display object is conspicuous in the light emitting area 12 by surrounding the display object 30 and presenting the light emitting area 12 simultaneously with the effect of imparting the display object floating impression according to the present invention when observed from the observer. In order to achieve a conspicuous impression imparting effect, the light emitting region 12 preferably includes a display object 30 in plan view.

  Moreover, as the organic EL light emitting panel 10 according to the present invention, the above-mentioned bottom emission type organic EL light emitting panel, which is excellent in light emission characteristics and reliability and is easy to obtain an inexpensive panel, is preferable.

  The light emitting region side mirror surface 122 is formed by a metal cathode layer (to be described later) of the organic EL light emitting element 11 from the observer side through a functional layer, a light transmitting conductive anode layer, and a transparent insulating substrate, which will be described later. It is preferred that it be observed.

  The outer shape of the organic EL light emitting panel 10 according to the present invention is preferably substantially the same as the outer shape of the organic EL light emitting display panel 1 of the present invention. Moreover, as thickness of the organic electroluminescent light emission panel 10 which concerns on this invention, in order to set it as the thin and light organic electroluminescent light emission display board 1, Preferably it is 0.05 mm or more and 5 mm or less, More preferably, it is 0.2 mm or more and 3 mm or less, Furthermore Preferably they are 0.5 mm or more and 1 mm or less.

  The organic EL light-emitting element 11 is preferably a main body of the organic EL light-emitting panel 10 according to the present invention, preferably on a transparent insulating base material, preferably on a glass substrate having excellent transparency and insulating properties, on the article side. In this order, a light-transmitting conductive anode layer, a light emitting layer containing an organic compound, a functional layer in which a plurality of thin films are laminated, and a metal cathode layer are formed. Preferably, the organic EL light emitting device 11 formed in this way is sealed in order to prevent moisture from entering the device.

  The organic EL light emitting panel 10 according to another invention can be the same as the organic EL light emitting panel 10 according to the present invention. The light emitting area side mirror surface 122 according to the present invention is not necessarily formed on the light emitting surface, but the light scattering surface translucent member 40 described later is irradiated with light to the outside due to its presence. In the case of increasing the amount, for example, an OCF film, it is necessary that the light emitting area side mirror surface 122 is formed for the increase.

(Light scattering surface translucent member 40)
The light scattering surface translucent member 40 according to another invention is a member disposed between the observer and the display object 30, that is, preferably in contact with the display object 30. In this case, a white sheet or the like can be used, and an OCF film (Out-Coupling Film) is preferable.

  Hereinafter, specific examples of the present invention will be described.

(Example)
Using a 0.7 mm-thick glass substrate on which a transparent conductive metal oxide film ITO is formed, the organic EL light-emitting panel 10 according to the present invention is manufactured by the following procedure, and the transparent medium according to the present invention is prepared therefor. The organic EL light emitting display board 1 of this invention was manufactured by attaching the transparent resin board which is a part of 20, and the display thing 30. FIG. The produced organic EL light emitting panel 10 has a glass outer shape of 90 mm × 90 mm which is the same as the outer shape, and a light emitting region 12 of 80 mm × 80 mm.

  First, a substrate for forming an organic EL element was prepared by forming a transparent conductive anode layer on the glass substrate by patterning using a wet etching method.

  Next, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer are sequentially deposited on the organic EL light emitting element forming substrate as a functional layer using a predetermined mask. Then, a metal cathode layer made of aluminum was laminated thereon by a vacuum vapor deposition method using a predetermined mask to form the organic EL light emitting device 11.

  Next, a silicon nitride film is formed on the organic EL light-emitting element 11 by a CVD method using a predetermined mask, and then a polysilazane is applied by a spray method and baked to form a sealing layer. Stopped.

  Next, a protective film made of PET with an adhesive material was pasted on the sealed organic EL light-emitting element 11 to produce an organic EL light-emitting panel 10.

  Next, an acrylic plate having a thickness of 5 mm, which is a transparent resin plate and covers the entire surface of the organic EL light emitting panel 10 in a plan view, was attached to a glass substrate which is a light emitting surface of the organic EL light emitting panel 10 with a transparent adhesive. .

  Finally, the laminated sheet 34 is disposed in the same region as the entire surface of the light emitting region 12 in a plan view of the display object mounting surface 202 which is the surface opposite to the organic EL light emitting panel 10 of the acrylic plate which is the transparent resin plate. As shown, a body member 31 (transparent PVC film having a thickness of 50 μmt), a mirror member 32 (aluminum foil having a thickness of 0.5 μmt), and a transparent adhesive member 33 (an acrylic adhesive layer having a thickness of 30 μmt) are displayed. After the transparent adhesive member 33 is placed in contact with the object placement surface 202 and bonded, the laminated sheet 34 and the unnecessary laminated sheet 342 are separated with a cutter so as to form a logo, and the unnecessary laminated sheet 342 is removed. The logo was removed from the display object mounting surface 202.

  When an external power source is connected so that a direct current flows through each electrode layer of the organic EL light emitting element 11 in the organic EL light emitting panel 10 of the organic EL light emitting display panel 1 according to the present invention, a light emitting region 12 around the logo is formed. While emitting light, a non-light-emitting logo was observed in the light-emitting area 12 in a state of being raised and leaving an afterimage in the light-emitting area 12. In addition, when the light was turned off, the entire surface of the light emitting region 12 including the logo portion was observed as a metallic luster surface as observed from a distance.

  FIG. 2 shows a photograph (perspective view) of the organic EL light-emitting display panel 1 of the example prepared and lit in this manner.

DESCRIPTION OF SYMBOLS 1 Organic EL light emission display board 10 Organic EL light emission panel 11 Organic EL light emitting element 12 Light emission area 122 Light emission area side mirror surface 20 Transparent medium 202 Display object mounting surface 3 Internal component 30 Display object 31 Main body (main body member)
311 Surface side 32 Mirror surface member 321 Back surface side 322 Display object back surface side mirror surface 33 Transparent adhesive member 34 Laminated sheet 341 Main body, mirror surface member corresponding thereto, and transparent adhesive member 342 Unnecessary laminated sheet

Claims (5)

An organic EL light emitting panel including a light emitting region, and an organic EL light emitting display panel including a display object,
The light emitting region has a light emitting region side mirror surface that is observed as a mirror surface when the light is extinguished,
The display object has a mirror surface facing the light emitting area side mirror surface as a display object back surface side mirror surface on the back surface side thereof,
Furthermore, an organic EL light-emitting display panel including a transparent medium having a thickness of 1 mm or more and including the display object in a plan view between the light-emitting region side mirror surface and the display object back-side mirror surface.   2. The organic EL light-emitting display panel according to claim 1, wherein the transparent medium includes the entire surface of the light-emitting region in a plan view and a transparent resin plate or a transparent glass plate. The display object includes a main body, a mirror surface member, and a transparent adhesive member from the front surface side toward the back surface side,
The organic EL light-emitting display panel according to claim 1, wherein the mirror member is observed as a mirror surface on the back side of the display object via the transparent medium and the transparent adhesive member.   The organic EL light-emitting display panel according to claim 1, wherein the display object is a flat plate having a thickness of 1 cm or less. It is a manufacturing method of the organic electroluminescent light-emitting display board in any one of Claims 1-4, Comprising:
Sheet adhesion for placing and adhering a laminated sheet of the main body member, the mirror member, and the transparent adhesive member, each of which is a sheet-like main body, on the display object placement surface of the transparent medium corresponding to the light emitting region Process and
A method for producing an organic EL light-emitting display board, comprising: a sheet removing step of removing an unnecessary laminated sheet other than the main body, the mirror surface member corresponding to the main body, and the transparent adhesive member from the laminated sheet.