JP6154701B2 - Display device - Google Patents

Description

  The present invention relates to a display device.

  Display devices with mounting members to be attached to the fence include crossing prevention fences, sidewalk protection fences, fall prevention fences, fences for pedestrians and car stops, etc. The mounting bracket consists of a front and rear gripping body that is split into two cylinders that are fastened to a horizontal member, and an open / close bracket that tightens the edge of the signboard on the gripping body. There has been disclosed a signboard mounting apparatus configured to fasten a horizontal member and an edge of a signboard at the same time by tightening an opening / closing bracket with a screw penetrating the open / close bracket (PTL 1).

  However, since the signage attachment device is a mechanism that simultaneously tightens the horizontal member and the edge of the signage, the signage and the attachment device will be separated each time it is removed from the horizontal member. There was a problem that it was complicated and installation was troublesome.

Registered Utility Model No. 3056205

  The present invention has been made in view of such a problem, and an object thereof is to provide a display device that can be easily attached to a horizontal member.

  The present invention adopts the following means in order to achieve the above-mentioned main object.

The display device according to the present invention is a display device that can be attached to a fence having an upright column and a horizontal member for laying the column.
A light guide plate that receives light from the end surface and emits light from the main surface;
A light source member disposed to face at least one end face of the light guide plate;
A reflector disposed on the back side of the light guide plate;
A display plate disposed on the front side of the light guide plate;
A housing for holding the light guide plate, the light source member, the reflection plate, and the display plate;
A horizontal member mounting tool provided above the back of the housing,
The horizontal member mounting tool includes an upper support part supported on an upper surface of the horizontal member, and a lower part provided to be removable or rotatable with respect to the upper support part in order to fix the horizontal member. A support portion is provided.

  According to the display device of the present invention, the horizontal member mounting tool for attaching to the horizontal member is provided on the back surface of the housing independently from the removal of the display plate, so that it is easy without removing the display plate. It can be attached to and detached from the horizontal member. Further, after being attached to the fence, the display device is restricted from moving in all directions in the vertical direction, the horizontal direction, and the front-rear direction by the horizontal member attachment tool. Therefore, it can be securely fixed to the fence. Further, according to the display device according to the present invention, the horizontal member is fixed only by the horizontal member fixture located above, so that if one horizontal member is installed, the horizontal member can be attached. It is not affected by the number of frames or the width between horizontal members. Furthermore, as a general rule, the horizontal member attachment tool can be attached as long as the upper support portion can be placed, so that it is not affected by the cross-sectional shape of the horizontal member, and various forms such as a circular cross-section, a square cross-section, etc. A horizontal member can be attached. Thus, the attached display device can efficiently emit light incident from the end face from the surface and can be used as a signboard, a guide plate, or other display device.

  Moreover, the display apparatus concerning this invention WHEREIN: The said upper support part may have a curved surface which follows the surface of the said horizontal member. For example, when the horizontal member has a circular cross-section, by forming a part to be a part of a columnar shape along the circular shape, the contact area with the horizontal member is further increased and stable. It can be placed on a horizontal member. Thereby, shakiness etc. of the display apparatus after attachment can be suppressed.

  Furthermore, in the display device according to the present invention, the lower support portion may be fixed to the housing by a screwing member. By adopting such a configuration, it is possible to attach to and remove from the fence with a simple tool such as a screwdriver.

  Further, in the display device according to the present invention, the lower support part may have a back support surface that supports the horizontal member from the back side. By adopting such a configuration, the side surface of the horizontal member can be supported, and the display device can be prevented from rattling.

  Furthermore, in the display device according to the present invention, a buffer material may be provided on an inner surface of the horizontal member fixture. By adopting such a configuration, it is possible to suppress rattling between the horizontal member and the horizontal member attachment tool, and it is possible to reduce the possibility of the horizontal member being damaged.

  Furthermore, in the display device according to the present invention, the casing is provided with a support fixture below the back surface, and the support fixture is provided so as to be inserted in the horizontal direction and fixed to the support. It may be characterized by that. By adopting such a configuration, when attaching the support column to the support fixture, it is possible to fix it to the support column simply by sliding it laterally without using a tool. In addition, even when it is disposed at a position that is relatively low and difficult to attach, it is not necessary to squat down or bend down, and attachment is easy. Thereby, it is possible to prevent the lower part of the display device from moving in the horizontal direction such as the front-rear direction and the horizontal direction. Even if the strut is not present at the desired position, if the horizontal mounting bracket is attached only to the horizontal bracket, the lower side will not be fixed, but it will be used without fixing the strut with the post mounting bracket. It is also possible.

  Furthermore, a plurality of display devices according to the present invention may be arranged along the horizontal member, and the respective connectors connected to the light source member may be connected to each other. By adopting such a configuration, a plurality of display devices can be attached to the fence, and the display area can be increased, so that more viewers can be notified of more display information. In addition, by arranging a plurality of display devices along the horizontal member, any of the support fixtures can be fixed to the support.

FIG. 1 is a perspective view illustrating a usage state of the display device 100 according to the embodiment. FIG. 2 is an exploded perspective view of the display device 100 according to the embodiment. FIG. 3 is a perspective view showing the light source member 10 according to the embodiment. FIG. 4 is a perspective view showing a variation of the diffusing dots 29 formed on the light guide plate 20 according to the embodiment. FIG. 5 is a rear perspective view of the display device 100 according to the embodiment. FIG. 6 is an enlarged perspective view of the display device 100 according to the embodiment. FIG. 7 is a perspective view illustrating a modified example of the horizontal member fixture 60 of the display device 100 according to the embodiment. FIG. 8 is a perspective view showing a state in which a plurality of display devices 100 according to the embodiment are arranged.

  An embodiment of a display device 100 according to the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments and drawings described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and do not depart from the gist of the present invention. Can be changed as appropriate. Corresponding components in the drawings are given the same or similar reference numerals. In the present specification, the “front side” refers to the side visually recognized by a person, the “back side” refers to the opposite of the front side, and the “front” or “back” of each member refers to Each surface is on the front side or the back side.

(Embodiment)
A display device 100 according to an embodiment is shown in FIGS. 1 and 2. FIG. 1 is a front perspective view illustrating a usage state of the display device 100 according to the embodiment, and FIG. 2 is an exploded perspective view of the display device 100. As shown in FIG. 2, the display device 100 according to the embodiment mainly includes a light source member 10, a light guide plate 20, a reflection plate 30, a display plate 40, a housing 50, and a horizontal member attachment tool 60. , And a support fixture 70 (see FIG. 5). As shown in FIG. 1, the display device 100 according to the present embodiment is used by being attached to a fence 90 having a support column 91 erected mainly in the vertical direction and a horizontal member 92 for laying between the support columns 91. Is done.

  As shown in FIG. 3, the light source member 10 mainly includes one or more light emitting diodes (hereinafter referred to as “LEDs 12”) and a light source holding member 11 that holds the LEDs 12. The LED 12 may be any type such as a flat light emitting type, a side light emitting type, and a bullet type. Preferably, a plane emission type is used. The color of light of the LED 12 is not limited, and may be, for example, white, red, orange, yellow, green, blue, indigo or purple, or a combination of these colors.

  The light source holding member 11 is a member for holding the LED 12 and fixing it to the light guide plate 20. The light source holding member 11 is formed in a substantially U-shaped cross section having a bottom surface 11a to which the LED 12 is attached and side surfaces 11b that are erected from both sides of the bottom surface 11a.

  In addition to the LED 12 and the light source holding member 11, the light source member 10 may include a power supply unit (not shown) that supplies power to the LED 12. As a power supply unit, in order to adapt the power input from the outside to the rating of the LED 12, the power is supplied to the LED 12 by performing step-down, rectification to a constant DC current, pulse modulation after rectification, noise removal, etc. . For example, there are those composed of a transformer, a rectifier, a capacitor and the like. In the embodiment, as illustrated in FIG. 2, the light source member 10 is disposed on the upper end surface 20 a and the lower end surface 20 b of the light guide plate 20. As shown in FIG. 3, the two light source members 10 arranged are connected to an external power source by a harness 13 via a waterproof connector 14. The light source member 10 is preferably waterproofed by being covered with urethane, silicon or the like. In addition, as a power supply, you may use the storage battery which stored the electricity obtained with the solar cell or the solar cell. By using these solar cells and the like, the display device 100 which is friendly to the environment can be obtained.

  As shown in FIG. 2, the light guide plate 20 is formed in a rectangular flat plate shape, and the light from the light source member 10 is incident from at least one of the end surfaces, and the light is emitted mainly from the main surface 21 on the front side. To do. In the present embodiment, as described above, light is incident from the two end surfaces of the upper end surface 20a and the lower end surface 20b and is emitted from the front main surface 21. The light guide plate 20 is made of a transparent resin through which light can pass. For example, in addition to methacrylic resins such as methyl methacrylate and ethyl methacrylate, acrylic resins such as methyl acrylate and ethyl acrylate, polycarbonate, polyethylene, Various materials such as glass can be used. The material is not particularly limited as long as the material has high permeability. Further, in order to efficiently emit light incident from the end face from the front main surface 21, a diffusion dot 29 is provided on the back side of the light guide plate 20, or instead of or in addition to the diffusion dot 29. Thus, the back surface of the light guide plate 20 may be formed into a rough surface.

  As shown in FIG. 4 (FIG. 4 shows a state viewed from the back surface of the light guide plate 20), the diffusion dots 29 are mainly formed in the recesses. The shape of the concave portion is not particularly limited, and is a quadrangular pyramid shape (FIG. 4A), a conical shape (FIG. 4B), a triangular pyramid shape (FIG. 4C), a quadrangular pyramid work table shape (FIG. 4D), and a hemispherical shape (see FIG. Various types of holes such as 4E) can be selected. The method for producing the diffusion dots is not particularly limited, and various processing methods such as ultrasonic processing, heat processing, laser processing, and cutting processing can be employed. When the quadrangular pyramid-shaped diffusion dots 29 are produced by ultrasonic processing, an ultrasonic processing horn in which processing dots having a shape obtained by inverting the diffusion dots 29 on the front end surface are arranged in a plurality of matrix forms vertically and horizontally, By pressing the light guide plate 20 perpendicularly, the quadrangular pyramid-shaped diffusion dots 29 reflecting the shape of the processed dots can be formed. In the present embodiment, the diffusing dots 29 are formed of concave portions that are recessed in a substantially quadrangular pyramid shape, and are provided so that a position corresponding to the bottom surface of the quadrangular pyramid is located on the main surface on the back side of the light guide plate 20. The size of each diffusion dot 29 may be the same or different. For example, as the distance from the LED 12 increases, each side of the quadrangular pyramid-shaped diffusion dot 29 may be gradually lengthened, or the depth of the quadrangular pyramid-shaped diffusion dot 29 may be gradually increased. By doing so, the amount of light diffused becomes small at a position where the light is close to the LED 12 and the amount of light diffused increases as the distance from the light source member 10 increases. Can do. Alternatively, a large diffusion dot 29 may be formed only in a portion where light is more strongly emitted, or a diffusion dot 29 having a partially different shape may be formed so that only a portion has a different appearance. Good. In the present embodiment, the length of each side of the diffusion dot 29 is about 0.6 mm, the depth is about 0.4 mm, and the pitch between adjacent quadrangular pyramidal diffusion dots 29 is 2.0 mm. . Of course, the present invention is not limited to this, and a suitable size can be selected as appropriate. Preferably, the length of each side of the quadrangular pyramid-shaped diffusion dot 29 is selected from 0.2 mm to 1.5 mm. The depth of the quadrangular pyramid-shaped diffusion dots 29 may be selected from 0.4 mm to 0.8 mm. Further, the pitch between adjacent quadrangular pyramid-shaped diffusion dots 29 is not particularly limited, and can be appropriately selected from, for example, a pitch of 1.5 mm to 8.0 mm. Preferably, the pitch is 1.5 mm to 3.0 mm.

  Note that the shape of the diffusing dots 29 is not limited to a concave portion recessed in a concave shape, and may be a convex bulging diffusion convex portion (FIG. 4F). The diffusion convex portion may be formed on the inner peripheral surface so as to rise up by screen printing, silk printing, or the like (convex shape).

  Moreover, in order to form the back surface of the light guide plate 20 into a rough surface, for example, the surface may be cut with sandpaper or a file, or the surface may be scratched with sandblast, or the surface may be processed with a laser.

  When the diffusion dots 29 and the rough surface are prepared, not only the post-processing method described above but also a mold such as an injection prepared so that the diffusion dots 29 and the rough surface can be formed in advance is used. Then, the diffusion dots 29 and the rough surface (not shown) may be formed simultaneously with the formation of the light guide plate.

  The reflection plate 30 is for reflecting the light emitted from the main surface on the back side, entering the light guide plate 20 again, and efficiently emitting the light from the main surface 21 on the front side. As the reflecting plate 30, for example, a white plate or a plate formed on a mirror surface can be used.

  The display board 40 is a board | plate material with which display information (not shown) is described on the surface, has a function which is arrange | positioned at the front side and alert | reports information to the person who visually recognized display information. The material, color, and the like of the plate material are not particularly limited, but it is preferable to use a milk half plate that can emit light while diffusing light from the light guide plate 20 disposed on the back side. By using the milk half plate, light from the back can be appropriately transmitted and diffused, so that it can be used as a display panel with moderate brightness with reduced glare. This makes it easier for the viewer to recognize the display information.

  As shown in FIG. 2, the housing 50 includes a back-side housing 51 disposed from the back side and a front-side housing 52 disposed from the front side. The light guide plate 20, the reflection plate 30, the display plate 40 and the like are fixed so as to be sandwiched between the side housings 52. The rear housing 51 is formed in a box shape having a hole on the bottom surface 51a and a peripheral side surface 51c. The holes on the bottom surface 51a are diagonally connected to each other as shown in FIG. Thus, a reinforcing piece 51b is provided. The reinforcing piece 51b prevents the back side casing 51 from being distorted and reduces the possibility that the reflector 30 disposed inside the back side casing 51 collides with the fence 90 or the like and is damaged. it can. The buffer material 64 is provided in the vicinity of the upper end portion and the lower end portion of the bottom surface 51 a, so that the backside casing 51 and the reflection plate 30 can be prevented from shaking in the front and back directions. Further, a cushioning material 65 is provided on the side surface of the side surface 51c where the light source member 10 is not disposed, so that it is possible to prevent the reflection plate 30, the light guide plate 20, and the display plate 40 from shaking in the lateral direction. it can. As the buffer material, rubber, silicon, soft urethane, or the like is used. The front housing 52 is formed in a box shape that is slightly larger than the back housing 51 and can be attached so as to cover the end surface side of the back housing 51. The front housing 52 has a holding piece portion 52b for preventing the fall of the display panel 40 in order to prevent the display panel 40 from falling, and the center portion of the bottom surface 52a is opened. Therefore, the display information on the display board 40 can be visually recognized from the outside. A cushioning material 66 is provided on the inner surface side of the holding piece portion 52b of the front side casing 52 (arranged in the portion indicated by the dotted line of the front side casing 52). Thereby, shakiness of the front side case 52 and the display board 40 in the front and back directions can be prevented. As the buffer material, rubber, silicon, soft urethane, or the like is used. In addition, it is good to provide the drain hole 53 in the lower side surface of the back side housing | casing 51 and the front side housing | casing 52 as shown in FIG. By providing the drain hole 53, even if water enters the housing 50, the water can be discharged from the drain hole 53.

  The horizontal member mounting tool 60 is provided at the upper end of the back-side housing 51 and is a member for fixing to the horizontal member 92 such as the fence 90 (see FIG. 1). As shown in FIG. 6, the horizontal member mounting tool 60 includes an upper support 61 disposed on the upper surface side and a lower support 62 disposed on the lower side when attached to the horizontal member 92. I have. The upper support portion 61 includes a side wall attachment piece 61b (see FIG. 2) that is attached to the upper side wall of the rear side housing 51 that extends straight from the upper piece 61a that is disposed immediately above the horizontal member 92, and the upper piece 61a to the rear surface. A back mounting piece 61c formed by bending at 90 ° so as to be attached to the back surface of the side housing 51, and extending from the upper piece 61a to the side opposite to the side wall mounting piece 61b and extending along the surface of the horizontal member. 61d and a vertically lower piece 61e extending vertically downward from the curved piece 61d. The side wall mounting piece 61b and the back surface mounting piece 61c are provided with screw holes for fixing to the upper side wall and the back surface of the rear housing 51 with screws as screwing members, respectively. The vertical lower piece 61e is provided with a locking hole 61f for hooking a part of the lower support portion 62. A cushioning material 67 having flexibility and elasticity is provided on the inner surface of the upper support portion 61 for the purpose of cushioning and holding. As the buffer material, rubber, silicon, soft urethane, or the like is used. On the other hand, the lower support part 62 is provided so as to be attached to and detached from the upper support part 61. The lower support part 62 is provided in the vicinity of the end of the vertical lower piece 61e of the upper support part 61 so as to be attachable and detachable, and has a vertical piece 62a having a back support surface 63 for supporting the horizontal member 92 from the back side, A horizontal piece 62b disposed immediately below the horizontal member 92 and a back vertical piece 62c extending vertically downward from the horizontal piece 62b on the side opposite to the vertical piece 62a are provided. The back vertical piece 62c is provided with a screw hole so that it can be fixed to the back side casing 51 with screws, and can be fixed to the back side casing 51 with screws. Further, the vertical piece 62a is provided with a folded portion 62d at the upper end, and can be hooked in the locking hole 61f. Similarly to the upper support portion 61, a cushioning material 67 having flexibility and elasticity is provided on the inner surface of the lower support portion 62 for the purpose of buffering and holding. As the buffer material, rubber, silicon, soft urethane, or the like is used.

  The support fixture 70 is a member for fixing to the support column 91 standing vertically in the fence 90 (see FIG. 1). As shown in FIG. 5, the support fixture 70 has a substantially U-shaped cross section, and can be visually recognized in a U-shape when viewed from above, below the rear-side housing 51. The opening side is horizontal and the opening direction is parallel to the horizontal member. Therefore, the column 91 is attached so that the column 91 is fitted from the open side by shifting the column attachment 70 in the horizontal direction with respect to the column 91. The support post 70 may be formed so as to be slightly narrower than the support post 91 to be attached so that the support post 91 can be fixed by an elastic force.

  Each component formed as described above is assembled as follows. First, as shown in FIG. 3, after the light source member 10 is attached to the bottom surface 11 a of the light source holding member 11, the upper surface 20 a is opposed to the end surface of the light guide plate 20 as shown in FIG. 2. And attached to the lower end surface 20b. And the display board 40 is arrange | positioned at the front side of the light-guide plate 20, and the reflecting plate 30 is arrange | positioned at the back side. And these are accommodated so that it may be pinched | interposed by the back side housing | casing 51 and the front side housing | casing 52. FIG. In this way, the display device 100 in which display information on the display panel 40 is visible on the front side is obtained.

  The display device 100 manufactured in this way is used by being attached to the fence 90 or the like. In order to attach to the fence 90, first, the lower support part 62 of the horizontal member attachment tool 60 is removed, and the lower side of the upper support part 61 is opened. And it mounts on the horizontal member 92 from the downward direction of the upper support part 61. FIG. The column 91 is slid horizontally from this state, and the column 91 is fitted from the opening side of the column attachment 70. And the folding | returning part 62d of the lower support part 62 is again attached to the latching hole 61f, and it fixes to the back side housing | casing 51 with a screw through a lower screw hole, and attachment is completed.

  According to the display device 100 manufactured as described above, since the horizontal member mounting member 60 and the column mounting member 70 attached to the horizontal member 92 and the column 91 are provided on the back surface of the housing 50, the display plate 40 is provided. It is possible to easily attach to and remove from the horizontal member 92 and the column 91 with a simple tool such as a screwdriver without removing the bracket. After the attachment, the horizontal member attachment 60 restricts the vertical movement, the column attachment 70 restricts the horizontal movement, and both the horizontal member attachment 60 and the column attachment 70 are arranged in the front-rear direction. Since the movement is restricted by this, it can be securely fixed to the fence. The upper support portion 61 is formed to be a part of a columnar shape in accordance with the cross-sectional shape of the horizontal member 92, and the buffer material 67 is provided on the inner surfaces of the upper support portion 61 and the lower support portion. Therefore, it can be stably placed on the horizontal member 92. Thereby, it is possible to suppress rattling between the horizontal member 92 and the horizontal member attachment tool 60 after being attached, and it is possible to reduce the possibility of the horizontal member 92 being damaged. Moreover, since the vertical piece 62a has the back support surface, the horizontal member 92 can be pressed from the side when the lower support 62 is fixed. Therefore, rattling between the horizontal member 92 and the horizontal member fixture 60 can be suppressed by this back support surface. Further, according to the display device 100 according to the embodiment, the horizontal member 92 is fixed only by the upper horizontal member attachment tool 60. Therefore, if the single horizontal member 92 is installed, it is attached. It is not affected by the number of horizontal members or the width of each horizontal member. Thus, the attached display device 100 can efficiently emit light incident from the end face from the surface and can be used as a signboard, a guide plate, or other display device.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  In each of the embodiments described above, the horizontal member 92 is a columnar member having a circular cross section, but is not limited thereto, and may be a rectangular column or the like.

Further, in the above-described embodiment, the lower support portion 62 is formed so as to be detachable and attachable to the upper support portion 61. However, as shown in FIG. It may be provided so as to be movable. If such a configuration is adopted, the lower support portion 62 will not come off, so that the screw holes can be easily fitted and fixed more easily.

Further, in the above-described embodiment, only one display device 100 is attached to the fence 90. However, as shown in FIG. By arranging the connectors 14 of the plurality of display devices 100 to be connected to each other, power may be provided to each light source member. With this configuration, a plurality of display devices 100 can be continuously arranged along the horizontal member 92. By adopting such a configuration, the display area is increased, and more viewers can be notified of more display information. When arranging the plurality of display devices 110, they may be arranged adjacent to each other like the display device 100a and the display device 100b, or slightly spaced apart from each other like the display device 100b and the display device 100c. You may arrange. By arranging in this way, any one of the support fixtures of the display device 100 can be attached to the support 91.

  As shown in the above-described embodiment, it can be used as a display device.

110 ... light source member, 11 ... light source holding member, 11a ... bottom surface, 11b ... side surface, 12 ... LED,
DESCRIPTION OF SYMBOLS 13 ... Harness, 14 ... Connector, 20 ... Light guide plate, 20a ... Upper end surface, 20b ... Lower end surface,
21 ... Main surface, 29 ... Diffusion dots, 30 ... Reflecting plate, 40 ... Display plate, 50 ... Housing,
51 ... Back side housing, 51a ... Bottom surface, 51b ... Reinforcing piece, 52 ... Front side housing,
52a ... bottom surface, 52b ... holding piece, 53 ... drain hole, 60 ... horizontal material fixture,
61 ... Upper support portion, 61a ... Upper piece, 61b ... Side wall attachment piece, 61c ... Back attachment piece,
61d ... curved piece, 61e ... vertical lower piece, 61f ... locking hole, 62 ... lower support,
62a ... vertical piece, 62b ... horizontal piece, 62c ... back vertical piece, 62d ... folding part,
63 ... back support surface, 65, 66, 67 ... cushioning material, 70 ... prop attachment,
90 ... fence, 91 ... support, 92 ... horizontal material,
100, 100a, 100b, 100c ... display device

Claims (7)

In a display device that can be attached to a fence having an upright post and a horizontal member for installing the post,
A light guide plate that receives light from the end surface and emits light from the main surface;
A light source member disposed to face at least one end face of the light guide plate;
A reflector disposed on the back side of the light guide plate;
A display plate disposed on the front side of the light guide plate;
A housing for holding the light guide plate, the light source member, the reflection plate, and the display plate;
A horizontal mount fixture provided above the back of the housing;
With
The horizontal member mounting tool includes an upper support part supported on an upper surface of the horizontal member, and a lower part provided to be removable or rotatable with respect to the upper support part in order to fix the horizontal member. A display device comprising a support portion.   The display device according to claim 1, wherein the upper support portion has a curved surface along a surface of the horizontal member.   The display device according to claim 1, wherein the lower support portion can be fixed to the housing by a screwing member.   4. The display device according to claim 1, wherein the lower support part has a back support surface that supports the horizontal member from the back side. 5.   The display device according to claim 1, wherein a cushioning material is provided on an inner surface of the horizontal member attachment tool. The housing is provided with a support fixture at the lower back side,
The display device according to claim 1, wherein the support fixture is provided so as to be inserted and fixed in a horizontal direction with respect to the support. A plurality of display devices according to any one of claims 1 to 6 are arranged along the horizontal member,
Each of the connectors connected to the light source member can be connected to each other.

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