JP6566402B2 - Thin LED poster panel - Google Patents

Description

  The present invention relates to a lightweight and thin LED poster panel that can be hung from a store wall or window to illuminate an advertisement poster from the rear side.

  Conventionally, LED sign panels have been proposed that make the advertising design stand out clearly by irradiating light-transmitting advertising designs such as photographic film based on the LED light source housed at the edge of the panel. (For example, refer to Patent Document 1).

  Such an LED sign panel is configured such that the LED group is fitted into a concave groove formed near the outer peripheral edge of the transparent material panel plate having a rectangular shape and at the position of the inner ring, and the light emitted from the LED group is four of the transparent material panel plate. Provide a transparent material part for light transmission in the fitting part of the LED group so that it can penetrate to the periphery, and a reflector having a size that can cover the entire groove on the rear side of the panel board In this configuration, the reflected light is irregularly reflected in the front direction of the reflecting plate.

JP 2011-95439 A

  For such LED sign panels, transparent resin panel plates such as acrylic resin substrates are mainly used as transparent panel plates, but these transparent resin panel plates are relatively heavy and carry large-area advertisements such as posters. In the case of a panel board having a large area, the first problem is that it is troublesome to replace the advertising poster.

  In addition, the total weight of the panel plate and the frame material that supports the substrate becomes 10 to 20 kg, and when the frame material itself is reduced in weight, it is necessary to improve the strength of the panel plate itself. Therefore, it is necessary to increase the thickness of the panel plate to increase the strength. On the contrary, the weight of the panel plate increases and it is difficult to reduce the weight.

  An object of the present invention is to obtain an LED poster panel that can be reduced in weight even if it is a large panel that holds a large advertising poster. It is another object of the present invention to obtain a thin LED poster panel that further eliminates the adverse effects caused by weight reduction.

A thin LED poster panel according to the invention described in claim 1 is a rectangular transparent resin light guide panel plate that guides light of an LED light source incident from one side surface to the opposite side surface direction,
Reflecting means disposed on the rear surface portion of the light guide panel plate and reflecting light from the side of the LED light source in the front direction;
In the LED panel provided with the advertisement display area of the front portion of the light guide panel plate illuminated by the reflected light of the reflecting means,
A metal frame covering the lower surface portion and the left and right side surfaces of the rectangular light guide panel plate around the advertisement display area ;
A suspension means for suspension formed on one side of the light guide panel plate not covered with the metal frame member ,
The advertisement display area has an area capable of holding a poster of A2 size to B1 size,
The thickness of the transparent resin of the light guide panel plate, Ri 6mm thickness less 2mm der than thickness,
The metal frame material has a U-shaped cross-section that is bent to the front and back surfaces across the thickness direction of the lower surface portion and the left and right side surface portions of the light guide panel plate,
As the LED light source, a plurality of LED light source groups are arranged on the inside of the U-shaped cross section of the metal frame material on both the left and right sides facing each other,
It further comprises air cooling fins formed toward the outer sides of the left and right sides and the lower side of the light guide panel plate of the metal frame member .

Thin LED poster panel according to the invention described in claim 2, as a reflecting means according to claim 1, processed metal or a hard resin single layer or multiple of the light guide panel plate side as the reflective layer It further comprises a hard plate of layers .

In the thin LED poster panel according to the invention described in claim 3 , the lower metal frame material according to claim 1 or 2 supports the light guide panel plate,
The metal frame members on the left and right sides where the LED light sources are arranged are held with play against the light guide panel plate .

  The present invention can provide an LED poster panel that can be reduced in weight even if it is a large panel that holds a large advertising poster. Furthermore, there is an effect that it is possible to obtain a thin LED poster panel that further eliminates the adverse effects caused by weight reduction.

It is a front view explaining the structure of one Example of the thin LED poster panel of this invention. It is a partial expanded sectional view of the side part of FIG. It is a rear view of FIG. It is a front view explaining the structure of another Example of the thin LED poster panel of this invention. It is a partial expanded sectional view of the side part of FIG. FIG. 5 is a rear view of FIG. 4. It is a front view explaining the structure of another Example of the thin LED poster panel of this invention. It is a partial expanded sectional view of the side part of FIG. FIG. 8 is a rear view of FIG. 7.

  In the present invention, a rectangular transparent resin light guide panel plate that guides the light of the LED light source incident from one side surface to the opposite side surface direction, and a rear surface portion of the light guide panel plate, the LED light source side An LED panel comprising a reflection means for reflecting light from the front in the front direction and an advertisement display area on the front portion of the light guide panel plate illuminated by the reflected light of the reflection means, particularly a large advertisement poster It is a large panel that holds

  In such a panel, the rectangular light guide panel plate around the advertisement display area is provided with a metal frame covering the three side surfaces including the LED light source, and the transparent resin light guide panel plate has a thickness of 6 mm. By making the thickness less than 2 mm, the thickness of the light guide panel plate made of transparent resin can be reduced compared to the conventional size even for large panels that hold large advertising posters. The weight of the metal frame material itself can be reduced, so even large panels can be made lighter than conventional ones. It is also possible to illuminate from.

  The transparent resin plate as the light guide panel plate of the present invention may be a rectangular transparent resin plate that guides the light of the LED light source incident from one side surface to the opposite side surface direction. For example, acrylic resin (polymethyl methacrylate, polycarbonate resin, etc.) In the present invention, the thickness of the light guide panel plate is less than 6 mm and 2 mm or more, but 6 mm The above is equivalent to the conventional poster panel, and if it is smaller than 2 mm, a small LED light source suitable for this thickness becomes expensive. More preferably, the thickness of the conventional panel is about 3 mm. Approximately half the weight can be reduced.

  Moreover, as a reflection means of this invention, it is distribute | arranged to the rear surface part of the light-guide panel board, and reflects the light from the side of a LED light source to a front direction, and covers the projection surface of an advertisement display area | region from a rear surface side. Arranged. The reflecting means may form a smooth, high-brightness reflective layer so as to give high reflection to the transparent plate, or a white sealing material that reflects in a mirror shape or with high brightness is attached to a hard plate such as a steel plate. May be configured. In the case where the reflective layer is formed on the transparent plate, the light from the LED light source can be reflected also on the rear surface side, so that the rear surface side can also be used as an advertisement display area.

  Furthermore, as the transparent plate of the poster holding means of the present invention, since it is arranged on the outermost side, it is highly transparent, lightweight, has high resistance to creep and fatigue, is excellent in heat resistance and cold resistance, and is electrically insulated. Materials with good resistance, chemical resistance and wear resistance are selected. In the examples described later, PET (polyethylene terephthalate) is selected.

  In addition, as the metal frame material of the present invention, any material that radiates the LED light source by covering the three side surfaces including the LED light source of the rectangular light guide panel plate around the advertisement display area may be used. A high, strong and lightweight metal is selected. Preferably, inexpensive aluminum or the like is selected. In consideration of lighting the advertising poster from the rear side by hanging it on the wall or window of the store, it is preferable to put in and out the advertising printing sheet on one side that is not covered with the metal frame material. With the mouth as the upper side, the metal frame material is arranged so as to cover the lower surface and the left and right side surfaces of the panel plate. Moreover, since the LED light source improves visibility, it is possible to obtain high illuminance, preferably by arranging the LED light source on the left and right side portions. In addition, the metal frame material may be a frame material that covers at least three side surfaces of the light guide panel plate, and may be a frame material that covers the four side surfaces by closing the other one side surface.

  As the thickness of the light guide panel plate made of transparent resin in the present invention, if it is thinner than the light guide panel plate of the conventional poster panel, the effect of weight reduction can be achieved. In particular, if it is large enough to hold a large advertising panel, it is possible to reduce the weight further. Since the light guide panel plate of the conventional large panel is 6 mm thick or more, the weight can be reduced by making it less than 6 mm. Further, if the thickness is less than 2 mm, the weight can be further reduced, but the brightness as a light guide panel plate for guiding the light from the LED light source may be reduced, so that the thickness is 2 mm or more. More preferably, by setting the thickness to 3 mm, the weight can be half that of the conventional poster panel.

  In the present invention, since the weight can be reduced, the advertisement poster can be illuminated from the rear side by being hung on a store wall or window. In this case, preferably, the rectangular transparent resin light guide panel plate of the present invention is further provided with a hanging latching means on one side not covered with the metal frame material.

  More specifically, the advertisement display area of the present invention includes an area that can hold a poster having an A2 size (420 mm × 594 mm) to a B1 size (728 mm × 1030 mm).

  Further, in the present invention, a metal frame member that covers the three side surfaces including the LED light source of the rectangular light guide panel plate around the advertisement display area, and is covered with the metal frame member. There is a poster holding means for holding the advertisement print sheet in the gap between the transparent plate connected to the three side surfaces of the metal frame member and the surface of the light guide panel plate. You may prepare. Thereby, a big advertisement printing sheet can be easily held by inserting it through the slot.

  Moreover, in the thin LED poster panel of the present invention, the light guide panel plate made of a transparent resin such as acrylic resin is thinned to realize a light weight, but the light guide panel plate is thinned. If the light guide panel plate or the like expands due to the heat generated when the LEDs are turned on, and the unevenness of the expansion causes uneven warpage of the panel itself, causing a problem of twisting deformation was there.

  Specifically, an LED light source generates much less heat than an incandescent bulb, but in order to obtain high illuminance (for example, 3500 lux or more) for improving visibility, a large number of high-brightness LED light sources are used. May be placed. For this reason, when high illuminance is obtained, as a matter of course, heat is generated, and as a result, heat of about 30 ° C. to 50 ° C. is generated in the vicinity of the place where the LED light source of the poster panel is arranged. The light guide panel plate expands due to this heat and heat non-uniformity between the other parts of the poster panel, and the non-uniform warpage of the poster panel itself occurs due to the non-uniform expansion. In some cases, the problem of deformation occurs.

  Therefore, the present invention preferably further includes a warp preventing means for preventing the light guide panel plate from being warped due to heat from the LED light source as the weight is reduced.

  One of the specific warp preventing means is a hard plate having a reflection means as a surface disposed on the rear surface portion of the light guide panel plate and abutting against the light guide panel plate. That is, the hard plate is disposed on the rear surface portion of the light guide panel plate, and warpage of the light guide panel plate is prevented by the hard plate. Examples of the hard plate include a single-layer or multi-layer hard plate made of metal or hard resin processed with the light guide panel plate side as a reflective layer.

  The other warp preventing means is a heat radiating means for radiating the LED light source covered with the metal frame material, and the heat radiating means is formed on the metal frame material for installing the LED light source on at least one side surface. It is a piece. That is, by improving the heat dissipation of the metal frame material, the heat from the LED light source is prevented from affecting the light guide panel plate. That is, it is preferable that the metal frame material further includes a heat dissipation improving means for improving the heat dissipation effect.

  More specifically, regarding the metal frame material that radiates the LED light source by covering the three sides including the LED light source of the rectangular light guide panel plate around the advertisement display area, the LED light source is surely attached to the metal frame material. Install in. A good air cooling mechanism is provided by increasing the surface area of the metal frame material.

  For example, by bending the metal frame material from the thickness direction of the light guide panel plate to the back side in an L-shaped cross section and taking a large area on the back side, not only the heat from the LED light source can be released well. Also, there is an effect of correcting even the torsional deformation of the light guide panel plate. In addition, in the case of a metal frame member that is bent in a U-shaped cross section on the front and back surfaces across the thickness direction of the light guide panel plate, a frame member in which air-cooling fins are formed outward of the metal frame member As a result, the heat from the LED light source is released well. In addition, by sandwiching the light guide panel plate in a U-shape, there is also an effect of correcting for torsional deformation.

  Still another warp prevention means uses a metal frame material that covers an intermediate side surface of the metal frame material that covers three side surfaces of the light guide panel plate as a support frame that supports a lower end edge of the light guide panel plate, and the light guide panel plate It is a loose fitting mechanism that loosely fits both side edges of the light guide panel plate to the metal frame material covering the left and right side surfaces of the light guide panel.

  In other words, as another device for solving the adverse effects caused by the weight reduction, the light guide panel plate and the metal frame material are allowed to have a play, and the uneven expansion of the light guide panel plate is directly applied to the metal. It is also effective not to transmit it to the frame material. For this reason, the LED light source is firmly installed on the metal frame member, and the light guide panel plate and the reflecting means disposed on the rear surface portion of the panel plate are held by the metal frame member with play. You can do it.

  More specifically, hanging means for hanging are provided on the upper part of the metal frame material covering both the left and right side surfaces of the light guide panel plate, and the light guide panel plate is mounted with the lower metal frame material. A light guide panel plate having a slightly smaller width is selected for the left and right metal frame members on which the LED light sources are arranged, and the metal frame member and the light guide panel plate are held with play. This prevents the uneven expansion of the light guide panel plate from being directly transmitted to the metal frame member.

  FIG. 1 is a front view illustrating the configuration of an embodiment of a thin LED poster panel according to the present invention. FIG. 2 is a partially enlarged cross-sectional view of the side portion of FIG. FIG. 3 is a rear view of FIG. FIG. 4 is a front view for explaining the configuration of another embodiment of the thin LED poster panel of the present invention. FIG. 5 is a partially enlarged sectional view of the side portion of FIG. 6 is a rear view of FIG.

  As shown in FIGS. 1, 2, and 3, the thin LED poster panel 10 of this embodiment has a thickness of 3 mm that functions as a light guide plate that guides the light of the LED light source incident from one side to the opposite side. , A light guide panel plate 11 made of transparent acrylic resin having a rectangular shape of 619 mm wide and 889 mm long. On the rear surface portion of the light guide panel plate 11, a reflective plate 12 made of PVC is disposed as a reflecting means.

  An aluminum metal frame member 15 is disposed so as to cover the lower surface portion and the left and right side surface portions of the light guide panel plate 11. The metal frame member 15 of the present embodiment is formed by bending the L-shaped cross section from the thickness direction of the side surface of the light guide panel plate 11 to the back surface side. As shown in FIG. 2, a plurality of LED light sources 14 are arranged on the left and right side surfaces of the metal frame member 15 having an L-shaped cross section so as to face the left and right side surfaces of the light guide panel plate 11.

  The inner side surrounded by the metal frame member 15 on the front surface portion of the light guide panel plate 11 becomes the advertisement display area 13. In this embodiment, the advertisement display area 13 secures an area capable of holding an A1 (594 mm × 841 mm) advertisement poster. In this embodiment, the advertisement display area 13 includes a poster holding unit 18 as a poster holding unit that holds an advertisement poster 30 as an advertisement print sheet.

  Specifically, as shown in FIG. 2, the poster holding unit 18 covers the LED light source 14 group arranged on the metal frame member 15, and the three ends on both sides and the lower side of the light guide panel plate 11. A foam rubber spacer band 17 is attached to the edge, and a 0.8 mm thick PET transparent plate 16 is attached to the spacer band 17 at the edge.

  In the upper part where the spacer band 17 is not attached, an insertion / exit opening 19 for the advertisement poster 30 is formed, and a cutout 20 is formed in the transparent plate 16 at the center of the insertion / exit opening 19. Further, a virtual spacer band 17 is concealed at the four side edges of the transparent plate 16, and a black or gray printing band is printed in order to make the entrance / exit 19 clear. In addition, a latch hole 25 as a latch means is equally disposed on the left and right above the entrance / exit 19. Thereby, the thin LED poster panel 10 can be suspended and fixed.

  The thickness of the thin LED poster panel 10 of the present embodiment is 6 mm in total at the thickest part because the thickness of the light guide panel plate is 3 mm. For this reason, the weight was reduced to less than half that of a conventional poster panel of the same size. Furthermore, when the thickness of the transparent resin panel plate is reduced, the heat generated when the LED is turned on causes the transparent resin panel plate and the reflector disposed on the rear surface of the panel plate to expand, and the expansion of the transparent resin panel plate is prevented. There is provided a warp preventing means for solving the problem that the uneven warpage occurs in the panel itself due to the uniformity and the twist-like deformation occurs.

  Specifically, as a heat dissipation means as a warp prevention means for improving the heat dissipation effect of the LED light source, the heat dissipation effect is achieved by widening the bent area on the back side of the L-shaped cross section of the metal frame material 15. It is getting bigger. In addition, by taking a large area on the back surface side, the effect of correcting the torsional deformation of the light guide panel plate is also achieved.

  As shown in FIGS. 4, 5, and 6, the thin LED poster panel 40 of another embodiment has a thickness that functions as a light guide plate that guides the light of the LED light source incident from one side to the opposite side. A light guide panel plate 41 made of a transparent acrylic resin having a rectangular shape of 3 mm, 610 mm in width, and 889 mm in length is provided. On the rear surface portion of the light guide panel plate 41, a reflective plate 42 made of PVC is disposed as a reflecting means. Since this PVC reflector 42 can also reflect the light from the LED light source on the rear side, the rear side can also be used as the advertisement display area 43.

  An aluminum metal frame member 45 is disposed so as to cover the lower surface portion and the left and right side surface portions of the light guide panel plate 41. The metal frame member 45 of the present embodiment is configured to be bent in a U-shaped cross section on the front and back surfaces with the thickness direction of the light guide panel plate interposed therebetween. As shown in FIG. 5, a plurality of LED light source 44 groups are arranged on the inner side of the left and right side surfaces of the metal frame member 45 having a U-shaped cross section so as to face the left and right side surfaces of the light guide panel plate 41.

  In the present embodiment, the advertisement display region 43 includes two surfaces, an inner side surrounded by the metal frame member 45 on the front surface portion of the light guide panel plate 41 and an inner side surrounded by the metal frame member 45 on the rear surface portion. . The advertisement display area 43 also secures an area that can hold an advertisement poster as an A1 (594 mm × 841 mm) advertisement print sheet in this embodiment. In the present embodiment, each of the advertisement display areas 43 includes a poster holding unit 48 as a poster holding unit that holds the advertisement poster 60.

  Specifically, as shown in FIG. 5, the poster holding portion 48 is a foam rubber spacer band 47 that is attached to the three edge portions on both the front and back sides of the light guide panel plate 41 and the lower side, The spacer band 47 is provided with a transparent plate 46 made of PET having a thickness of 0.8 mm, the edge of which is attached. A metal frame member 45 having a U-shaped cross-section holds the laminated body of the light guide panel plate 41 and the reflector plate 42 on which the poster holding portions 48 are arranged, and transmits the light from the LED light source 44 group to the light guide panel plate. It introduces from the side of 44.

  In the upper part where the front and back spacer bands 47 are not attached, an insertion / exit opening 49 of the advertisement poster 60 is formed, and a notch 50 is formed in each transparent plate 46 at the center of the insertion / extraction opening 49. Further, a black or gray printing band is printed on the upper edge portion of the transparent plate 46 in order to make the entrance / exit 49 clear. Also, above the loading / unloading port 49, latching holes 55 as latching means are equally arranged on the left and right. Thereby, the thin LED poster panel 40 can be suspended and fixed.

  The thickness of the thin LED poster panel 40 of this embodiment is 10 mm in the thickest part because the thickness of the light guide panel plate is 3 mm and the poster holding portions 48 are provided on both the front and back surfaces. For this reason, the weight was reduced to about half that of a conventional poster panel of the same size. Furthermore, when the thickness of the transparent resin panel plate is reduced, the heat generated when the LED is turned on causes the transparent resin panel plate and the reflector disposed on the rear surface of the panel plate to expand, and the expansion of the transparent resin panel plate is prevented. There is provided a warp preventing means for solving the problem that the uneven warpage occurs in the panel itself due to the uniformity and the twist-like deformation occurs.

  Specifically, a frame in which air-cooling fins 51 are formed toward the outside of a metal frame member having a U-shaped cross section of the metal frame member 45 as a heat dissipation unit as a warp prevention unit that improves the heat dissipation effect of the LED light source. As a material, heat from the LED light source is released well. Further, by sandwiching the light guide panel plate in a U-shape, there is also an effect of correcting for torsional deformation.

  As shown in FIGS. 7, 8, and 9, a thin LED poster panel 70 of still another embodiment has a thickness that functions as a light guide plate that guides light of an LED light source incident from one side to the opposite side. A light guide panel plate 71 made of transparent acrylic resin having a rectangular shape of 3 mm in length, 610 mm in width, and 889 mm in length is provided. On the rear surface portion of the light guide panel plate 71, a 2 mm thick hard plate 82 having a reflective layer 72 as a reflecting means formed on the surface of the light guide panel plate 71 is disposed. The hard plate 82 of the present embodiment is formed by sandwiching a white color coated aluminum material as a reflective layer 72 on the front and back surfaces of a polyethylene resin as a hard resin.

  An aluminum metal frame member 75 is disposed so as to cover the lower surface portion of the light guide panel plate 71 and the hard plate 82 and the three surface portions of the left and right side portions. The metal frame member 75 of the present embodiment is configured to be bent in a U-shaped cross section on the front surface and the back surface across the thickness direction of the light guide panel plate. As shown in FIG. 8, a plurality of LED light sources 74 are arranged on the inner sides of the left and right side surfaces of the metal frame member 75 having a U-shaped cross section so as to face the left and right side surfaces of the light guide panel plate 71.

  In the present embodiment, the inner surface surrounded by the metal frame member 75 on the front surface portion of the light guide panel plate 71 becomes the advertisement display area 73. The advertisement display area 73 also secures an area capable of holding an advertisement poster as an A1 (594 mm × 841 mm) advertisement print sheet in this embodiment. In the present embodiment, each of the advertisement display areas 73 includes a poster holding unit 78 as a poster holding means for holding the advertisement poster 90.

  Specifically, as shown in FIG. 8, the poster holding portion 78 is a foam rubber spacer band 77 attached to the three edge portions of the light guide panel plate 71 on both the front and back sides, and the lower side, Each of the spacer bands 77 is provided with a transparent plate 76 made of PET having a thickness of 0.8 mm, the edge of which is attached. A metal frame member 75 having a U-shaped cross-section holds the laminated body of the light guide panel plate 71 and the reflection plate 72 on which the poster holding portions 78 are arranged, and transmits the light from the LED light source 74 group to the light guide panel plate. 71 is introduced from the side.

  In the upper part where the spacer band 77 is not attached, an insertion / exit opening 79 of the advertisement poster 90 is formed, and a notch 80 is formed in each transparent plate 76 in the center of the insertion / extraction opening 79. Further, a black or gray printing band is printed on the upper edge portion of the transparent plate 76 in order to make the entrance / exit 79 clear. In addition, above the loading / unloading port 79, hooking holes 85 as hooking means are evenly arranged on the left and right. As a result, the thin LED poster panel 60 can be suspended and fixed.

  The thickness of the thin LED poster panel 60 of the present embodiment is 9.5 mm with a thickness not including the metal frame material 75 because the poster holding portion 78 of the spacer band 77 of 3 mm is provided on the surface side. The thickness is 12 mm including the thickness of the frame material 75, and a weight reduction (4.5 kg) of about half that of a conventional poster panel of the same size has been realized. Furthermore, when the thickness of the transparent resin panel plate is reduced, the heat generated when the LED is turned on causes the transparent resin panel plate and the reflector disposed on the rear surface of the panel plate to expand, and the expansion of the transparent resin panel plate is prevented. There is provided a warp preventing means for solving the problem that the uneven warpage occurs in the panel itself due to the uniformity and the twist-like deformation occurs.

  Specifically, one warp prevention means is an arrangement of the hard plate 82 on the rear surface portion of the light guide panel plate 71. By disposing the light guide panel plate 71 on the rear surface portion of the hard plate 82, warpage of the light guide panel plate 71 can be prevented by the hard plate 82. As in the poster panel 40 of FIG. 4, as a device for improving the heat dissipation effect of the LED light source, air cooling fins 81 are formed toward the outside of the metal frame member 75 having a U-shaped cross section of the metal frame member 75. As the frame material, the heat from the LED light source is released well, and the aluminum material of the hard plate 82 is connected to the metal frame material 75, so that the heat dissipation effect is improved. Further, by sandwiching the light guide panel plate in a U-shape, there is also an effect of correcting for torsional deformation.

10 ... Thin LED poster panel,
11 ... Light guide panel plate,
12 ... reflector,
13 ... Advertisement display area,
14 ... LED light source,
15 ... Metal frame material,
16 ... transparent plate,
17 ... spacer band,
18 ... Poster holding section (poster holding means),
19 ...
20 ... Notch,
21 ... Retaining tape,
25 ... Hook hole,
30 ... advertising poster (advertising print sheet),
40 ... Thin LED poster panel,
41 ... Light guide panel plate,
42 ... reflector,
43 ... advertisement display area,
44 ... LED light source,
45. Metal frame material,
46 ... Transparent plate,
47 ... spacer band,
48. Poster holding section (poster holding means)
49 ... The entrance and exit,
50 ... Notch,
51 ... Air-cooled fins,
55 ... Hook hole,
60 ... advertising poster (advertising print sheet),
70 ... Thin LED poster panel,
71 ... Light guide panel plate,
72 ... reflective layer,
73 ... advertisement display area,
74 ... LED light source,
75 ... Metal frame material,
76 ... Transparent plate,
77 ... spacer band,
78. Poster holding unit (poster holding means)
79 ... The entrance and exit,
80 ... Notch,
81 ... air cooling fins,
82: hard plate,
85 ... Hook hole,
90 ... advertising poster (advertising print sheet),

Claims (3)

A light guide panel plate made of a rectangular transparent resin that guides the light of the LED light source incident from one side surface to the opposite side surface direction,
Reflecting means disposed on the rear surface portion of the light guide panel plate and reflecting light from the side of the LED light source in the front direction;
In the LED panel provided with the advertisement display area of the front portion of the light guide panel plate illuminated by the reflected light of the reflecting means,
A metal frame covering the lower surface portion and the left and right side surfaces of the rectangular light guide panel plate around the advertisement display area ;
A suspension means for suspension formed on one side of the light guide panel plate not covered with the metal frame member ,
The advertisement display area has an area capable of holding a poster of A2 size to B1 size,
The thickness of the transparent resin of the light guide panel plate, Ri 6mm thickness less 2mm der than thickness,
The metal frame material has a U-shaped cross-section that is bent to the front and back surfaces across the thickness direction of the lower surface portion and the left and right side surface portions of the light guide panel plate,
As the LED light source, a plurality of LED light source groups are arranged on the inside of the U-shaped cross section of the metal frame material on both the left and right sides facing each other,
A thin LED poster panel , further comprising air-cooling fins formed outwardly from the left and right sides and the lower side of the light guide panel plate of the metal frame member . 2. The thin LED according to claim 1, further comprising a single-layer or multiple-layer hard plate made of metal or hard resin processed as a reflection layer on the light guide panel plate side as the reflection means. Poster panel. The lower metal frame material supports the light guide panel plate,
The thin frame according to claim 1 or 2 , wherein the left and right metal frame members on which the LED light sources are arranged are held with play against the light guide panel plate. LED poster panel.

Images