Display unit support case

Abstract

The objective is to provide a display support case that allows the radio wave control unit and the display unit to be arranged in a stacked configuration. [Solution] The display support case 10 comprises a pair of side wall portions 14, 14 arranged at intervals, a transparent first radio wave control body 12 provided between the pair of side wall portions 14, 14, a second radio wave control body 13 provided between the pair of side wall portions 14, 14 parallel to the first radio wave control body 12 and at a distance from the first radio wave control body 12, and a display mounting portion 16 provided on the inner surface of the pair of side wall portions 14, 14 between the first radio wave control body 12 and the second radio wave control body 13 for detachably attaching the display body 11.

Description

Technical Field

[0001] The present invention relates to a display body support case, and in particular, has a function of displaying information such as advertisements and controlling radio waves.

Background Art

[0002] On the walls, columns, ceilings, walls and the like (hereinafter referred to as "walls and the like") of structures such as buildings in town, station premises, and offices, display bodies for conveying information such as advertisements and signs to people are provided. For example, Patent Document 1 proposes a display body such as an advertising panel installed on a temporary wall at a site of repair work or extension work. On the other hand, in recent years, in mobile phones and wireless communications, radio waves in a frequency band of about 2 GHz to 300 GHz called centimeter waves and millimeter waves are used. Such radio waves with short wavelengths have high straightness and are less likely to diffract around obstacles, so radio wave reflectors are provided on the walls and the like of structures in order to make the radio waves reach a wide range (for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Many display bodies and radio wave reflectors are provided on the walls and the like of structures, and when a display body is already provided at a location suitable for installing a radio wave reflector, the radio wave reflector cannot be installed. Conversely, when a radio wave reflector is already provided at a location suitable for installing a display body, the display body cannot be installed. As described above, when the installation space on a wall or the like is limited, there is a problem that it is impossible to achieve both information display and radio wave control.

[0005] This invention has been made in view of the above-mentioned problems, and aims to provide a display support case that allows a radio wave control unit and a display unit to be arranged in a stacked manner. [Means for solving the problem]

[0006] To achieve the above objectives, the present invention encompasses the subject matter described in the following sections.

[0007] Item 1: A pair of side wall sections arranged at intervals, A transparent first radio wave control body is provided between the pair of side wall portions, Between the pair of side wall portions, a second radio wave control body is provided parallel to the first radio wave control body and spaced apart from the first radio wave control body. A display support case comprising a display mounting portion on the inner surface of the pair of side walls, provided between the first radio wave control body and the second radio wave control body, for detachably attaching a display body.

[0008] Item 2: The display support case according to Item 1, further comprising the display body detachably supported on the display body mounting portion.

[0009] Item 3: The display support case according to item 1 or 2, wherein each display mounting portion is a pair of parallel protrusions projecting inward, and the display is detachably supported between the pair of protrusions.

[0010] Item 4: The display mounting portion is a pair of parallel transparent plates connecting the pair of side wall portions, The display body is detachably disposed between the pair of transparent plates in the display body support case according to item 1 or 2.

[0011] Item 5: When the first radio wave control unit is the front side and the second radio wave control unit is the rear side, The display support case according to any one of claims 1 to 4, further comprising a position adjustment means for adjusting the front-to-back position of the display body.

[0012] Item 6: A pair of side wall sections arranged at intervals, A transparent first radio wave control body is provided between the pair of side wall portions, A second radio wave control body is provided between the pair of side wall portions, parallel to the first radio wave control body and spaced apart from the first radio wave control body, and is detachable from the pair of side wall portions. It comprises a display unit on which information is displayed, When the first radio wave control body and the second radio wave control body are arranged in parallel, with the first radio wave control body side facing the front and the second radio wave control body side facing the rear, the display body is provided on the front surface of the second radio wave control body, and is a display body support case.

[0013] Item 7: The display support case according to any one of items 1 to 6, wherein the second radio wave control body is a back wall connecting the pair of side wall portions.

[0014] Item 8: On the inner surfaces of the pair of side walls, A display support case according to any one of items 1 to 7, wherein a first mounting portion for attaching the first radio wave control body is provided.

[0015] Item 9: The display support case according to Item 8, wherein each of the first mounting portions is a pair of parallel protrusions provided on the inner surface of each of the pair of side wall portions and projecting inward, and the first radio wave control body is detachably supported between the pair of protrusions.

[0016] Item 10: The first mounting portion is a pair of parallel transparent plates connecting the pair of side wall portions, The first radio wave control body is detachably disposed between the pair of transparent plates, as described in item 8.

[0017] Item 11: The first mounting portion is a single transparent plate connecting the pair of side wall portions, The first radio wave control unit is attached to the transparent plate, the display support case according to item 8.

[0018] Item 12: When the first radio wave control body and the second radio wave control body are arranged in parallel, with the first radio wave control body side facing the front and the second radio wave control body side facing the rear, The display body support case according to any one of items 1 to 11, further comprising a position adjusting means that enables adjustment of the position of the first radio wave control body in the front-rear direction.

[0019] Item 13: The display body support case according to any one of items 1 to 12, wherein the display body includes a display layer on which information is displayed, and a display base material that supports the display layer.

[0020] Item 14: The display body support case according to item 6, wherein the display body is constituted by a display layer on which information is displayed.

[0021] Item 15: Further comprising an upper wall portion that covers the space between the pair of side wall portions, The display body support case according to any one of items 1 to 14, wherein the upper wall portion is provided with an elongated slit for taking in and out at least one of the first radio wave control body and the display body. [Effects of the Invention]

[0022] According to the display body support case of the present invention, since it has a radio wave control function, it is possible to achieve both information display and radio wave control. [Brief Description of the Drawings]

[0023] [Figure 1] It is a perspective view of the display body support case according to one embodiment of the present invention. [Figure 2] It is a cross-sectional view along the plane extending in the left-right direction and the front-rear direction of the display body support case. [Figure 3] It is a cross-sectional view along the plane extending in the left-right direction and the front-rear direction, showing another embodiment. [Figure 4] It is a cross-sectional view along the plane extending in the left-right direction and the front-rear direction, showing another embodiment. [Figure 5] It is a cross-sectional view along the plane extending in the left-right direction and the front-rear direction, showing another embodiment. [Figure 6] It is a cross-sectional view along the plane extending in the left-right direction and the front-rear direction, showing another embodiment. [Figure 7]This is a perspective view showing another embodiment. [Figure 8] Figures (A) to (D) are explanatory diagrams showing examples of conductive layers for the first and second radio wave control units. [Modes for carrying out the invention]

[0024] (Overall structure) Embodiments of the present invention will be described with reference to the drawings. Figures 1 and 2 show a display support case 10 of one embodiment of the present invention. The display support case 10 supports a display 11, a first radio wave control body 12, and a second radio wave control body 13 stacked on top of each other, and has a substantially rectangular parallelepiped shape. The display support case 10 has a pair of side walls 14, 14 arranged at a distance from each other, a bottom wall 15, a transparent first radio wave control body 12 provided between the pair of side walls 14, 14, a second radio wave control body 13 provided between the pair of side walls 14, 14 parallel to the first radio wave control body 12, a display 11 on which information 11c is displayed, a display mounting portion 16 for attaching the display 11, and a first mounting portion 17 for attaching the first radio wave control body 12.

[0025] Furthermore, the display support case 10 may not have the display 11 when it is distributed to the market, and the display 11 may be added when the display support case 10 is in use, for example, after it has been installed in a predetermined location.

[0026] As shown in the plan view of Figure 2, the first radio wave control unit 12, the display unit 11, and the second radio wave control unit 13 are arranged in this order. The direction in which the first radio wave control unit 12, the display unit 11, and the second radio wave control unit 13 are aligned is called the front-to-back direction, with the side of the first radio wave control unit 12 being the front or one side, and the side of the second radio wave control unit 13 being the rear or the other side. The left-to-right direction in Figure 2, that is, the direction in which the pair of side walls 14, 14 are aligned, is called the left-to-right direction, and the direction perpendicular to the front-to-back direction and the left-to-right direction is called the up-and-down direction (Figure 1). These directions are used for the purpose of explaining the display unit support case 10 and do not indicate the direction in which the display unit support case 10 would actually be positioned. The display unit support case 10 shown in the figures is for illustrative purposes only and does not represent its actual dimensions or shape. The display unit support case 10 is visible from the front to the rear, that is, in the direction of arrow X in Figures 1 to 7.

[0027] (Side wall portion 14, bottom wall portion 15, back wall portion (second radio wave control body 13)) Each side wall portion 14 is a rectangular plate-shaped member in a side view, and two identical side wall portions 14 are arranged parallel to each other with a gap between them in the left-right direction. The lower ends of the pair of side wall portions 14, 14 are connected to a bottom wall portion 15, which is a rectangular plate-shaped member. The pair of side wall portions 14, 14 and the bottom wall portion 15 may be integrally formed by injection molding using synthetic resin or the like as a material, or individual members made of synthetic resin, wood, etc. may be connected by adhesive or other means of attachment. Each side wall portion 14 and bottom wall portion 15 may be transparent or not. The bottom wall portion 15 may not be provided.

[0028] The back wall connects the rear ends of a pair of side wall sections 14, 14 and is composed of a second radio wave control body 13. The second radio wave control body 13 is a rectangular plate-like member, with a vertical length equal to the vertical length of the side wall section 14 and a horizontal length approximately equal to the distance between the pair of side wall sections 14, 14. The sides of the second radio wave control body 13 are attached to the inner surfaces of the pair of side wall sections 14, 14 by means of an adhesive layer or other mounting means (not shown). Details of the second radio wave control body 13 will be described later.

[0029] (First mounting section 17) A first mounting portion 17 is formed at the front end of the inner surface of a pair of side wall portions 14, 14. The first mounting portion 17 is for detachably attaching the first radio wave control body 12. The first mounting portion 17 is a pair of parallel protrusions 22, 22 spaced apart. The pair of protrusions 22, 22 project inward and extend along the vertical direction. The upper ends of the protrusions 22, 22 are aligned with the upper ends of the side wall portions 14, and the lower ends of the protrusions 22, 22 abut against the upper surface of the bottom wall portion 15. The protrusions 22, 22 may be divided along the vertical direction. A groove 23 is formed between the pair of protrusions 22, 22, and the first radio wave control body 12 is detachably supported by the first mounting portion 17 by inserting the left and right ends of the first radio wave control body 12 into this groove 23 from above.

[0030] The first mounting portion 17 may be provided with means for fixing the first radio wave control unit 12 in at least a part of it. The means for fixing the first radio wave control unit 12 is, for example, a clip provided in at least a part of the first mounting portion 17.

[0031] The width of the groove 23, that is, the distance between the pair of protrusions 22, 22, is set according to the thickness (length in the front-to-back direction) of the first radio wave control body 12, and the width of the groove 23 is set to be slightly larger than the thickness of the first radio wave control body 12 so that the first radio wave control body 12 can be inserted. The width of the protrusions 20 (length in the left-to-right direction) is set to a length that can support the first radio wave control body 12, and is set, for example, to about 1 / 10 of the length between the pair of side wall portions 14, 14. The first mounting portion 17 may be formed integrally with the side wall portion 14, or it may be attached to the inside of the side wall portion 14 by an adhesive or other mounting means.

[0032] The first mounting portion 17 is located on the upper surface of the bottom wall portion 15 and may have an additional pair of protrusions 22, 22 at positions corresponding to the pair of protrusions 22, 22 of the pair of side wall portions 14, 14. In this case, the first radio wave control body 12 can be firmly supported from three directions: left, right, and below.

[0033] (Display unit mounting section 16) A display mounting portion 16 is provided on the inner surface of each of the pair of side wall portions 14, 14. The display mounting portion 16 is for detachably attaching the display body 11. The display mounting portion 16 is provided at the same position between the first radio wave control body 12 and the second radio wave control body 13 in the front-rear direction. When the display body 11 is attached to the display mounting portion 16, the display body 11 is parallel to the first radio wave control body 12 and the second radio wave reflector. The first radio wave control body 12 and the display body 11 are arranged with a first distance L1 in the front-rear direction, and a first space 18 is provided between the first radio wave control body 12 and the display body 11. The second radio wave control body 13 and the display body 11 are arranged with a second distance L2 in the front-rear direction, and a second space 19 is provided between the display body 11 and the second radio wave control body 13.

[0034] The display mounting portion 16 consists of a pair of parallel protrusions 20, 20 spaced apart. The pair of protrusions 20, 20 project inward and extend along the vertical direction. The upper ends of the protrusions 20, 20 are aligned with the upper ends of the side wall portion 14, and the lower ends of the protrusions 20, 20 abut against the upper surface of the bottom wall portion 15. The protrusions 20, 20 may be divided along the vertical direction. A groove 21 is formed between the pair of protrusions 20, 20, and the left and right ends of the display body 11 are inserted into this groove 21, thereby allowing the display body 11 to be detachably supported by the pair of display mounting portions 16.

[0035] The display mounting portion 16 may be provided with means for fixing the display 11 in at least a part of it. The means for fixing the display 11 is, for example, a clip provided in at least a part of the display mounting portion 16.

[0036] The width of the groove 21, that is, the distance between the pair of protrusions 20, 20, is set according to the thickness (length in the front-to-back direction) of the display body 11, and is set to be slightly larger than the thickness of the display body 11 so that the display body 11 can be inserted. The width (length in the left-to-right direction) of the protrusions 22 is formed to be the same width as the first mounting portion 17. The display body mounting portion 16 may be formed integrally with the side wall portion 14, or it may be attached to the inside of the side wall portion 14 by an adhesive or other mounting means.

[0037] The display mounting portion 16 may be provided not only on the inner surfaces of the pair of side wall portions 14, 14, but also on the upper surface of the bottom wall portion 15. In this case, the display 11 can be firmly supported from three directions: left, right, and below.

[0038] (Display 11) The display body 11 has a display layer 11b on the front surface of a sheet-like display substrate 11a that displays information 11c. For example, as in a poster, the display layer 11b may be printed with ink on the surface of the paper that is the display substrate 11a.

[0039] The term "sheet-like" includes a film-like shape, and refers to a material where the length in the vertical or horizontal direction on a flat surface is sufficiently long relative to its thickness, for example, the length in the vertical or horizontal direction is 10 times or more the thickness.

[0040] The area on which the display layer 11b is provided may be set over the entire front surface of the display substrate 11a, or it may be set only in a part, such as the center of the front surface. The thickness (length along the front-to-back direction) of the display layer 11b is very thin compared to the display substrate 11a, and the thickness of the display body 11 is determined almost entirely by the thickness of the display substrate 11a. The thickness of the display body 11 is preferably 50 μm or more and 500 μm or less, but is not limited to this thickness. The display layer 11b may be printed to a thickness of about 1 μm, but its thickness is not particularly limited. The display substrate 11a and the display layer 11b are opaque. Opaque means that the other side of the object cannot be seen from one side.

[0041] The display substrate 11a of the display body 11 is not limited to paper, and may be made of any material such as cloth, synthetic resin such as plastic, or glass, as long as a display layer 11b can be provided. Furthermore, the display layer 11b may be formed by printing ink on the surface of the display substrate 11a as in this embodiment, but for example, the display layer 11b itself may be made of a single component different from the display substrate 11a (e.g., glass), and this component may be attached to the display substrate 11a. Also, the display body 11 may not be divided into a display substrate 11a and a display layer 11b, but may be an integrated unit, for example, a liquid crystal monitor. The display body 11 as a whole may be transparent. Transparent means that the other side is visible when viewed from one side, and includes translucency.

[0042] The information 11c displayed by the display body 11 consists of characters, patterns, designs, diagrams, photographs, etc., and the display body 11 has functions such as advertising and information boards depending on the information 11c attached to it.

[0043] (First radio wave control unit 12) The first radio wave control unit 12 controls radio waves. Controlling radio waves means reflecting, absorbing, transmitting, or diffusing incident radio waves in a certain direction, or performing at least two of the following actions: reflection, absorption, transmission, or diffusion.

[0044] In this embodiment, the first radio wave control body 12 reflects radio waves, and is a reflector that reflects radio waves such that the angle of incidence and the angle of reflection of the radio waves are different. The first radio wave control body 12 includes a base layer and a conductive layer provided on the base layer (not shown). A protective layer may be provided on the conductive layer. The base layer, conductive layer, and protective layer are laminated along the front-to-back direction. The first radio wave control body 12 has a sheet-like appearance. The first radio wave control body 12 may have a known metamaterial structure.

[0045] The conductive layer of the first radio wave control unit 12 comprises, for example, two or more different types of reflective elements 100, as shown in Figure 7(D). Each reflective element 100 includes a thin film (sheet-like) conductive material 101 formed in a predetermined shape in plan view on the upper surface of the substrate layer, and a region 102 without a conductive material. The conductive layer is formed by periodically arranging these different types of reflective elements 100 in a row as a single unit on a sheet-like substrate layer. The reflective elements 100 have a thickness of 1 μm. Due to the region 102 without a conductive material, the entire surface of the substrate layer is not covered by the reflective elements 100, and there are parts of the substrate layer where the reflective elements 100 are not formed, depending on the shape of the conductive material 101 of the reflective element 100. This structure, which partially transmits visible light, allows visibility from one side to the other, i.e., it is transparent.

[0046] The conductor 101 may be composed of a metal, metallic compound, or alloy having free electrons, and is not limited to silver. For example, it may be gold, copper, platinum, aluminum, titanium, silicon, indium tin oxide, and alloys (for example, alloys containing nickel, chromium, and molybdenum). Examples of alloys containing nickel, chromium, and molybdenum include various grades such as Hastelloy B-2, B-3, C-4, C-2000, C-22, C-276, G-30, N, W, and X.

[0047] The difference between the phase of the radio waves incident on the reflecting element 100 and the phase of the radio waves reflected by the reflecting element 100 (hereinafter also referred to as the "phase difference" or "phase difference of the reflecting element") is determined according to the shape of the reflecting element 100. Different types of reflecting elements 100 refer to reflecting elements 100 designed so that each type has a different phase difference. The first radio wave control unit 12 reflects the incident wave incident at the incident angle α1 as a reflected wave at a desired reflection angle α2 that is different from the incident angle α1. The shape and size of each reflecting element 100, the period of arrangement of the multiple reflecting elements 100, the shape and size of the conductor 101, etc. are set so that the reflection angle α2 is the desired angle.

[0048] The base layer is transparent, and a conductive layer is formed on its upper surface; it is a sheet-like component. The base layer can be made from materials such as PET (polyethylene terephthalate), FR4 (glass fiber cloth impregnated with epoxy resin and heat-cured to form a sheet), glass, or silicon. Other synthetic resins may also be used as materials. Examples of synthetic resins include one or more selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polyester, polyformaldehyde, polyamide, polyphenylene ether, vinylidene chloride, polyvinyl acetate, polyvinyl acetal, AS resin, ABS resin, acrylic resin, fluororesin, nylon resin, polyacetal resin, polycarbonate resin, polyamide resin, and polyurethane resin.

[0049] If a protective layer is provided, it may have the same configuration as the base layer.

[0050] The first radio wave control body 12 is transparent as a whole. The first radio wave control body 12 has a total light transmittance of 65% or more, preferably 80% or more, more preferably 85% or more, and even more preferably 90% or more, in a D65 standard light source. Total light transmittance refers to the ratio of the total transmitted light flux to the parallel incident light flux of the test piece, and is specified in JIS K7375:2008. The first radio wave control body 12 may be colored as a whole.

[0051] (Second radio wave control unit 13) The differences between the second radio wave control unit 13 and the first radio wave control unit 12 will be explained below. The second radio wave control unit 13 in this embodiment controls radio waves differently from the first radio wave control unit 12.

[0052] In this embodiment, the second radio wave control body 13 is a reflector that reflects and specularly reflects radio waves. Specular reflection of radio waves means that an incident wave incident at an incident angle α1 is reflected as a reflected wave at the same reflection angle α2 as the incident angle α1. The second radio wave control body 13 includes a base layer and a conductive layer provided on the base layer, although it is not shown in the figure. A protective layer may be provided on the conductive layer. The base layer, conductive layer and protective layer are laminated along the lamination direction of the information display body 10.

[0053] The conductive layer, as shown in Figure 7(A), for example, comprises a plurality of linear conductors 101 and regions 102 without conductors surrounded by these conductors 101, wherein the regions 102 without conductors are arranged periodically at predetermined intervals. Linear means that the length in the longitudinal direction is 3000 times or more the length in the direction perpendicular to the longitudinal direction. The conductors 101 may be arranged in a grid pattern such that the regions 102 without conductors form a rectangle. Alternatively, the conductors 101 may be arranged so that the regions 102 without conductors form a triangle, polygon, circle, etc.

[0054] The conductor 101 has a thickness of 1 μm, the line width of the conductor 101 is preferably 0.1 μm or more and 10 μm or less, and the pitch between the wirings is preferably 50 μm or more and 1000 μm or less. The conductive layer thus has a region 102 without a conductor, that is, it has a structure that partially transmits visible light. For this reason, it is possible to see from one side to the other, i.e., it is transparent.

[0055] Furthermore, the conductive layer may be formed by periodically arranging multiple identical reflective elements 100 on a substrate layer that is formed in a sheet shape.

[0056] Each reflective element 100 may, for example, as shown in Figure 7(B), include a thin film (sheet-like) conductive material 101 formed in a predetermined shape in plan view on the upper surface of the substrate layer, and a region 102 without conductive material.

[0057] Each reflective element 100 may comprise a plurality of linear conductors 101 and a region 102 without conductors surrounded by these conductors 101, as shown in Figure 7(C). The linear conductors 101 may be arranged in a grid pattern such that the region without conductors 102 is rectangular. Alternatively, the conductors 101 may be arranged so that the region without conductors 102 is triangular, polygonal, circular, or the like.

[0058] The conductor 101 has a thickness of 1 μm, the line width of the conductor 101 is preferably 0.1 μm or more and 10 μm or less, and the pitch between the wirings is preferably 50 μm or more and 1000 μm or less. The conductive layer thus has a region 102 without a conductor, that is, it has a structure that partially transmits visible light. For this reason, it is possible to see from one side to the other, i.e., it is transparent.

[0059] The shape of the reflective elements 100 is the same, and the second radio wave control unit 13 reflects the incident wave that was incident at the incident angle α1 at the same reflection angle α2 as the incident angle α1. The shape and size of the reflective elements 100, the width, thickness, and arrangement of the thin film or linear conductor 101 are set so that the incident angle α1 and the reflection angle α2 are the same angle.

[0060] The conductive layer of the second radio wave control body 13 is not limited to the above configuration; any configuration that specularly reflects radio waves is acceptable, and it may be made of a metal plate or the like. The other configurations are the same as those of the first radio wave control body 12, so their explanation is omitted.

[0061] (use) To use the display support case 10, any display unit 11 is inserted from above into the groove 21 of the display mounting section 16. The first radio wave control unit 12 is also inserted from above into the groove 23 of the first mounting section 17. As a result, the display layer 11b of the display unit 11, which is located on the front side of the display unit 11, is exposed to the front through the transparent first radio wave control unit 12, making it visible from the front. The display support case 10 may be attached to the wall of a building with the rear surface of the second radio wave control unit 13 attached, or it may be placed on the floor of a building.

[0062] The display support case 10 allows for both the display of information 11c and the control of radio waves by the first radio wave controller 12 and the second radio wave controller 13, thus saving space. Furthermore, if the first radio wave controller 12 and the second radio wave controller 13 and the display 11 are provided separately, the radio wave controller (or display 11) cannot be installed if the display 11 (or radio wave controller) is already installed in a suitable location. However, by using the display support case 10 of this embodiment, both the display of information 11c and the control of radio waves can be performed in a suitable location.

[0063] Furthermore, if the display unit 11 is an advertisement or the like, it is expected that the display unit 11 will be replaced at regular intervals. In this embodiment, since the display unit 11 is detachable from the display unit support case 10, replacement is easy. Also, since the first radio wave control unit 12 is detachable from the display unit support case 10, even if the installation location of the display unit support case 10 is changed and the radio wave conditions change, it is easy to replace it with the first radio wave control unit 12 which has a radio wave control function corresponding to the radio wave conditions.

[0064] (Other embodiments) Figure 3 shows another embodiment of the display support case 10. In the embodiment shown in Figure 3, the configuration of the first mounting portion 17 and the display mounting portion 16 differs from the embodiments shown in Figures 1 and 2. The other components are the same as in the embodiment shown in Figure 2, so the same reference numerals are used for corresponding components and their descriptions are omitted.

[0065] (First mounting section 17) The first mounting portion 17 is a pair of plate-shaped transparent plates 25, 25 connecting the front ends of a pair of side wall portions 14, 14. The pair of transparent plates 25, 25 are arranged parallel to each other with a gap between them along the front-to-back direction and are parallel to the display body 11 and the second radio wave control body 13. The first radio wave control body 12 is detachably positioned in the space between the pair of transparent plates 25, 25. The transparent plate 24 is a rectangular plate-shaped member formed from synthetic resin or the like.

[0066] The width of the space between the pair of transparent plates 25, 25, that is, the distance between the pair of transparent plates 25, 25 along the front-to-back direction, is set according to the thickness (length in the front-to-back direction) of the first radio wave control body 12, and is set to be slightly larger than the thickness of the first radio wave control body 12 so that the first radio wave control body 12 can be inserted. The upper ends of the pair of transparent plates 25, 25 are aligned with the upper ends of the side wall portion 14, and the lower ends of the pair of transparent plates 25, 25 are in contact with the upper surface of the bottom wall portion 15. The pair of transparent plates 25, 25 are attached to the inside of the side wall portion 14 by a connecting means such as adhesive.

[0067] (Display unit mounting section 16) The display mounting section 16 is a pair of plate-shaped transparent plates 24, 24 connecting the front ends of a pair of side wall sections 14, 14. The pair of transparent plates 24, 24 are arranged parallel to each other with a gap between them along the front-to-back direction and are parallel to the first radio wave control unit 12 and the second radio wave control unit 13. The display unit 11 is detachably positioned in the space between the pair of transparent plates 24, 24. The pair of transparent plates 24, 24 are rectangular plate-shaped members formed from synthetic resin or the like.

[0068] The width of the space between the pair of transparent plates 24, 24, that is, the distance along the front-to-back direction between the pair of transparent plates 25, 25, is set according to the thickness (length in the front-to-back direction) of the display body 11, and is set to be slightly larger than the thickness of the display body 11 so that the display body 11 can be inserted. The upper ends of the pair of transparent plates 24, 24 are aligned with the upper ends of the side wall portion 14, and the lower ends of the pair of transparent plates 24, 24 are in contact with the upper surface of the bottom wall portion 15. The pair of transparent plates 25, 25 are attached to the inside of the side wall portion 14 by means of an adhesive or other mounting means.

[0069] Even in the embodiment shown in Figure 3, the first radio wave control unit 12 and the display unit 11 are detachably supported in the display unit support case 10, making it easy to replace the first radio wave control unit 12 and the display unit 11.

[0070] In the embodiment shown in Figure 1, the first mounting portion 17 may be composed of a pair of transparent plates 25, 25 as shown in Figure 3, or it may be composed of a single transparent plate 26 as shown in Figure 4, which will be described later. Also, in the embodiment shown in Figure 3, the first mounting portion 17 may be composed of a pair of protrusions 22, 22 as shown in Figures 1 and 2, or it may be composed of a single transparent plate 26 as shown in Figure 4, which will be described later.

[0071] (Other embodiments) Figure 4 shows another embodiment. In describing the embodiment shown in Figure 4, only the configurations that differ from the embodiments shown in Figures 1 and 2 will be described.

[0072] (First mounting section 17) The first mounting portion 17 is a single transparent plate 26 that connects the front ends of a pair of side wall portions 14, 14. The transparent plate 26 is provided parallel to the second radio wave control body 13. The first radio wave control body 12 is attached to the front surface of the transparent plate 26 by an adhesive layer (not shown). The first radio wave control body 12 may also be attached to the rear side of the transparent plate 26. The thickness of the transparent plate 26 should be such that it can support the first radio wave control body 12.

[0073] (Display 11) The display unit 11 consists of a display layer 11b on which information 11c is displayed. The display unit 11 does not have a display substrate 11a as shown in the embodiments in Figures 1 and 2. The display layer 11b is formed on the front surface of the second radio wave control unit 13 by printing or the like.

[0074] (Second radio wave control unit 13) The second radio wave control body 13 has a display layer 11b, which is a display body 11, formed on its front surface, and is detachable from the pair of side wall portions 14, 14. The length of the second radio wave control body 13 in the left-right direction is set to be the same as the distance between the pair of side wall portions 14, 14, or slightly longer than the distance between the pair of side wall portions 14, 14. The second radio wave control body 13 is pushed between the pair of side wall portions 14, 14 from the rear side, widening the distance between them as the pair of side wall portions 14, 14 flex outward, and is detachably positioned at the rear ends of the pair of side wall portions 14, 14 due to the reaction force from the pair of side wall portions 14, 14 to the widening force.

[0075] With the above configuration, the second radio wave control unit 13 is detachably attached to a pair of side wall portions 14, 14, so the display unit 11 can be replaced together with the second radio wave control unit 13.

[0076] In the embodiment shown in Figure 4, the display body 11 was composed of a display layer 11b, but as shown in Figure 5, the display body 11 may be composed of a display base material 11a and a display layer 11b, similar to the embodiments shown in Figures 1 and 2. In this case, the rear surface of the display base material 11a of the display body 11 is attached to the front surface of the second radio wave control body 13 by mounting means such as an adhesive layer (not shown).

[0077] Furthermore, in the embodiment shown in Figure 4, the first mounting portion 17 may be composed of a pair of protrusions 22, 22 shown in Figures 1 and 2, or it may be composed of a pair of transparent plates 25, 25 shown in Figure 3. Also, in the embodiment shown in Figure 5, the first mounting portion 17 may be composed of a pair of protrusions 22, 22 shown in Figures 1 and 2 (Figure 6), or it may be composed of a pair of transparent plates 25, 25 shown in Figure 3.

[0078] (Other embodiments) Figure 7 shows another embodiment. In the embodiment shown in Figure 7, the display support case 10 further includes an upper wall portion 30 that covers the space between a pair of side wall portions 14, 14. In the embodiment of Figure 7, the display support case 10 of the embodiments shown in Figures 1 and 2 further includes the upper wall portion 30. The upper wall portion 30 is a rectangular flat plate member and is attached to the upper surfaces of the pair of side wall portions 14, 14 by an adhesive or other mounting means. The upper wall portion 30 is provided with elongated slits 31 at positions corresponding to the first radio wave control body 12 and the display body 11, respectively, for inserting and removing them. The first radio wave control body 12 and the display body 11 are inserted into or removed from the interior through these slits 31 using a finger or an instrument such as tweezers. The length of the slit 31 in the longitudinal direction is set to be slightly larger than the length of the first radio wave control body 12 and the display body 11 in the left-right direction, and the width of the slit 31 is set to be larger than the thickness of the first radio wave control body 12 and the display body 11.

[0079] The upper wall portion 30 may be further provided on the display support case 10 of the embodiment shown in Figure 3. Also, as in the embodiment shown in Figure 6, if the display 11 is attached to the second radio wave control unit 13, the display 11 does not need to be attached or detached from above, so the upper wall portion 30 may only be provided with a slit 31 for removing the first radio wave control unit 12.

[0080] Further, in the display body support case 10 of the embodiment shown in Figures 1 to 7, a position adjusting means for the first radio wave control body 12 that enables adjustment of the position of the first radio wave control body 12 in the front-rear direction may be provided. For example, the position of the first radio wave control body 12 can be adjusted by attaching the first mounting portion 17 to the side wall portion 14 via a means movable in the front-rear direction such as a rail or an adjustable shelf. Further, a position adjusting means for the display body 11 that enables adjustment of the position of the display body 11 in the front-rear direction may be provided. As for the position adjusting means for the display body 11, for example, the position of the display body 11 can be adjusted by attaching the display body mounting portion 16 to the side wall portion 14 via a means movable in the front-rear direction such as a rail or an adjustable shelf. By the position adjusting means for the first radio wave control body 12 and the position adjusting means for the display body 11, the first distance L1 between the first radio wave control body 12 and the display body 11, and the second distance L2 between the second radio wave control body 13 and the display body 11 can be adjusted to intervals suitable for radio wave control.

[0081] It should be noted that the dimensions, materials, shapes, relative arrangements and the like of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, and are merely illustrative examples. Expressions indicating that things are in an equal state, such as "in a certain direction", "along a certain direction", "the same", "identical", "equal" and "homogeneous", not only represent a strictly equal state, but also represent a state where there is a tolerance or a difference to the extent that the same function can be obtained. Expressions representing triangular, quadrangular, and circular shapes not only represent shapes in a geometrically strict sense, but also represent shapes including uneven portions, chamfered portions and the like within the range where the same effect can be obtained. The expressions "comprising", "equipped with", "possessing", "including" or "having" a single component are not exclusive expressions that exclude the presence of other components. "Parallel" and "perpendicular" mean being substantially "parallel" and "perpendicular", and include not only strictly "parallel" and "perpendicular" states but also errors of about several degrees. In addition, expressions with "...portion" such as "end portion" may be used. For example, "end portion" means a part having a certain range including the "end". The same applies to other expressions accompanied by "...portion".

Description of Reference Signs

[0082] 10 Display unit support case 11 Display body 12. First Radio Wave Control Unit 13. Second radio wave control unit (back wall section) 14, 14 Pair of side wall sections 15 Bottom wall section 16 Display unit mounting section 17. First mounting section 18 The first space 19. The Second Space 30 Upper wall 31 slits L1 First distance between the first radio wave controller and the display unit L2 Second distance between the second radio wave controller and the display unit

Claims

1. A pair of side wall sections arranged at intervals, A transparent first radio wave control body is provided between the pair of side wall portions, A second radio wave control body is provided between the pair of side wall portions, parallel to the first radio wave control body and spaced apart from the first radio wave control body. A display support case comprising a display mounting portion on the inner surface of the pair of side walls, provided between the first radio wave control body and the second radio wave control body, for detachably supporting a display body.

2. The display support case according to claim 1, further comprising the display body detachably supported on the display body mounting portion.

3. The display support case according to claim 1, wherein each of the display mounting portions is a pair of parallel protrusions projecting inward, and the display is detachably supported between the pair of protrusions.

4. The display mounting portion is a pair of parallel transparent plates connecting the pair of side wall portions, The display body is detachably disposed between the pair of transparent plates in the display body support case according to claim 1.

5. When the first radio wave control unit is positioned at the front and the second radio wave control unit is positioned at the rear, The display support case according to claim 1, further comprising a position adjustment means for adjusting the front-to-back position of the display body.

6. A pair of side wall sections arranged at intervals, A transparent first radio wave control body is provided between the pair of side wall portions, A second radio wave control unit is provided between the pair of side wall portions, parallel to the first radio wave control unit and spaced apart from the first radio wave control unit, and is detachable from the pair of side wall portions. It comprises a display unit on which information is displayed, When the first radio wave control body and the second radio wave control body are arranged in parallel, with the first radio wave control body side facing the front and the second radio wave control body side facing the rear, the display body is provided on the front surface of the second radio wave control body, and is a display body support case.

7. The display support case according to claim 1 or 6, wherein the second radio wave control body is a back wall connecting the pair of side wall portions.

8. On the inner surfaces of the pair of side walls, The display support case according to claim 1 or 6, further comprising a first mounting portion for attaching the first radio wave control body.

9. The display support case according to claim 8, wherein each of the first mounting portions is a pair of parallel protrusions provided on the inner surface of each of the pair of side wall portions and projecting inward, and the first radio wave control body is detachably supported between the pair of protrusions.

10. The first mounting portion is a pair of parallel transparent plates connecting the pair of side wall portions, The display support case according to claim 8, wherein the first radio wave control body is detachably disposed between the pair of transparent plates.

11. The first mounting portion is a single transparent plate that connects the pair of side wall portions, The display support case according to claim 8, wherein the first radio wave control unit is attached to the transparent plate.

12. When the first radio wave control unit is positioned at the front and the second radio wave control unit is positioned at the rear, The display support case according to claim 1 or 6, further comprising a position adjustment means for adjusting the front-to-back position of the first radio wave control body.

13. The display support case according to claim 1 or 6, comprising a display layer on which information is displayed and a display substrate that supports the display layer.

14. The display support case according to claim 6, wherein the display body is composed of a display layer on which information is displayed.

15. It further comprises an upper wall that covers the space between a pair of side wall sections, The display support case according to claim 1 or 6, wherein the upper wall portion is provided with an elongated slit for inserting and removing at least one of the first radio wave control body and the display body.

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