WO2008050487A1 - Display device - Google Patents

Abstract

A display device includes: support plates (2, 3) and a plurality of light emitting modules (4) arranged close to the support plates so as to express a desired character or figure on the support plates. Each of the light emitting modules has an LED series body contained in a transparent plastic case and the plurality of linear light emitting modules are exposed outside.

Description

 Specification

 Display device

 Technical field

 [0001] The present invention relates to a display device such as an advertising billboard that has a light emitting element such as a light emitting diode (LED) and displays characters and figures.

 Background art

 In recent years, as a light source for lighting devices and display devices, low power consumption, long life, and light weight

 L E D has come to be used. For example, a plurality of light emitting modules arranged in a line on a printed wiring board (PCB) and housed in a light-transmitting tube are connected to each other through a connector so that a neon sign can be used instead. It has been proposed to be used for various purposes (Patent Document 1). Also, in what is called an internally illuminated sign, when installed outdoors such as the outer wall of a building, various light sources, lighting devices, and wiring members are made of SUS (stainless Steel) It is housed in a housing, and a light-transmitting acrylic cover is attached to the top surface of the housing to seal the space in which the light source is housed.

 [0003] In addition, in LED display devices in which multiple LEDs are arranged to represent the shape of characters and figures on the printed circuit board, daylight sunlight can be inserted or the surroundings can be placed in a bright place. In order to make it possible to recognize the display contents such as characters and figures even if the performance deteriorates, the part where the LED is mounted on the surface of the printed circuit board is made pale, such as white by silk printing, and the other part is dark, such as black. It has been proposed to use color (Patent Document 2).

 Patent Document 1: US Patent No. 6 2 8 3 6 1 2

 Patent Document 2: JP-A-9_3 4 3 8 5

 Disclosure of the invention

 Problems to be solved by the invention

[0004] As described above, in a display device in which an LED is housed in a sealed space using a housing, characters and figures to be displayed become large, and the display device becomes large and heavy. Suspension device is required to attach the device to the outer wall of the building, and it is necessary to assemble a scaffold when it is an existing building, which increases the work time and cost.

[0005] Also, if the substrate itself is colored by silk printing or the like, the substrate must be replaced or the entire substrate must be repainted if the color is to be changed or the characters or figures to be displayed are changed. There is a problem that it is wasted or requires a large amount of work.

 [0006] The present invention is for solving the problems of the prior art as described above, and its main purpose is that it can be installed outdoors such as the outer wall of a building, To provide a display device that can be easily mounted on the outer wall of a building even when the figure is large and can reduce the time and cost for mounting. More specifically, it is an object of the present invention to provide a display device having a novel structure that eliminates the need for a housing for hermetically housing the entire light source, and eliminates the need for a suspension device and a scaffold during installation.

 [0007] A further object of the present invention is to make it possible to visually recognize displayed characters and figures not only at night but also when the surroundings are bright, such as in the daytime, and also to change or display the color of the support plate surface. It is to provide a display device using a light source such as an LED that can easily change the character or figure to be used.

 Means for solving the problem

[0008] In order to solve the above-described problems, according to the present invention, a plurality of waterproofing members are disposed substantially in close contact with the support plate so as to represent desired characters or figures on the support plate. Each of the linear light emitting modules has an LED series body housed in a translucent plastic case, and the plurality of linear light emitting modules are exposed to the outside. A display device characterized by the above is provided. According to this, the light emitting module is waterproof, and it is not necessary to cover it separately with the casing (that is, it can be left exposed to the outside). Lightweight ■ Thinners can be thinned, so workers in a state where a rope or gondola is hung on the outer wall of the building The force display device can be easily attached at a predetermined position, no scaffold is required, no suspension device is required for installing the display device, and the working time and cost can be greatly reduced. A light emitting module in which an LED series body as described above is housed in a translucent plastic case (preferably tubular) is more resistant to impact than a neon tube using a glass tube and can be driven at a low voltage. Therefore, it has the advantage of being safe and having a long life. It is lightweight and easy to adjust. In addition, since each light emitting module is arranged in close contact with the support plate (that is, in contact with the support plate or with a slight gap), the neon sign must be arranged away from the support plate. This makes it possible to make the display device thinner. Assuming that the support plate is divided into a plurality of plate members, the size and weight of each plate member are reduced, making it easier to attach the plate member with the light emitting module mounted on one surface to a predetermined position. .

 [0009] Preferably, the plurality of linear light emitting modules are arranged substantially in parallel. This makes it possible to display desired characters or figures efficiently. Also, compared to the case where individual point light sources are arranged and wired on the support plate, wiring is simplified and assembly time can be significantly reduced.

 [0010] The display device of the present invention further includes a background plate arranged adjacent to the support plate, and the support plate is formed by cutting a plate material into the desired character or figure shape, The background plate may consist of the remaining portion after cutting the support plate from the plate material. By having the background plate in this way, the target character or figure can be clearly displayed without being affected by the state of the outer wall of the building to which the display device is attached. In addition, by making the background plate consist of the remaining part after cutting the support plate from the plate material, it is possible to eliminate or drastically reduce wasted material, leading to resource saving. The background plate and support plate divided based on the layout drawing can be processed at the factory and carried to the site.

[001 1] More preferably, an easily curved plate-shaped contour plate may be provided along the outer periphery of the character or figure surrounding the support plate in the gap between the support plate and the background plate. Thereby, it is possible to reduce the light emitted from the light emitting module on the support plate from being diffused outside, and to display desired characters or figures more closely. Such a contour plate can be obtained from, for example, an aluminum or SUS single roll having a thickness of about 0.5 mm, so that an inexpensive commercial product can be used.

 [0012] In addition, a plurality of fixing means are spaced apart in the gap between the support plate and the background plate, and a cover having substantially the same shape as the support plate is attached to the fixing means, and the force bar is It may be arranged above the light emitting module. As a result, the cover can protect the light emitting module from being damaged, and the cover can have various characteristics such as transparent, translucent, opaque, and various display effects can be easily realized. . The opaque cover serves as a light shielding bar and can easily form a reflective sign (also called a back channel letter) on the support plate.

[0013] Further, according to the present invention, a support plate, and a plurality of waterproof linear light-emitting modules disposed on the support plate so as to represent desired characters or figures are arranged in close contact with the support plate. Each of the linear light emitting modules has an LED series body housed in a translucent plastic case, the plurality of linear light emitting modules are exposed to the outside, and the support plate A sheet having a color different from that of the support plate is attached to a part of the surface of the support plate so that the desired character or figure shape portion on the surface and the other portions have different colors. Provided is a display device that is characterized by the above. By attaching the sheet to a part of the surface of the support plate in this way and making the desired character or figure part and the other part different colors, the surroundings are bright not only at night but also in the daytime However, good visibility can be ensured, and by changing the sheet, it is possible to easily cope with changes in characters and figures to be displayed. Preferably, the sheet has a desired character or figure shape, and the light emitting module is disposed on the sheet (ie, the sheet is disposed between the support plate and the light emitting module). ) In this case, the sheet also functions as a guide for positioning the light emitting module. If the sheet has the same color as that of the light emitting module, It is preferable because the color of the hour becomes even more vivid and the color does not differ between when emitting light and when not emitting light.

 [0014] Further, according to the present invention, a support plate, and a plurality of waterproof linear light-emitting modules disposed on the support plate so as to express desired characters or figures in close contact with the support plate, A translucent cover disposed above the light emitting module, so that the desired character or figure-shaped portion of the translucent cover and the other portions have different colors. There is provided a display device characterized in that at least a part of the translucent cover is colored. Preferably, at least part of the translucent cover is colored by attaching a colored sheet to the translucent cover. In a preferred embodiment, the colored sheet is made of a light-transmitting sheet having the desired character or figure shape, and the light-transmitting cover is disposed on a plurality of light emitting modules arranged in close contact with the support plate. Can be attached. Or the said colored sheet shall be attached to parts other than the said desired character or figure of the said translucent cover. As a result, good visibility can be ensured not only at night but also when the surroundings are bright, such as in the daytime. Also, by changing the sheet, it is possible to easily cope with changes in the characters and figures to be displayed.

[0015] Further, according to the present invention, a support plate, a plurality of waterproof linear light-emitting modules arranged to represent desired characters or figures on the support plate, and the plurality of linear light-emitting modules And a reflecting member arranged along the line. According to this, brightness and visibility can be improved by reflecting the light from the light emitting module by the reflecting plate and releasing it to the outside. Alternatively, since the number of light emitting modules can be reduced to obtain the same luminance, the cost of the display device can be reduced. Preferably, the reflecting member has a reflecting surface that is inclined with respect to a direction perpendicular to the surface of the support plate, thereby improving the reflection efficiency to the outside and further improving the luminance. In addition, when arranging a plurality of linear light emitting modules substantially in parallel, the display device bends a plate material having a reflective surface on the upper surface so as to form a plurality of substantially parallel grooves. Each of the groove portions of the reflector has a flat bottom wall and a pair of inclined side walls extending along both sides of the bottom wall and facing each other. The linear light emitting module may be disposed on the flat bottom wall of the groove-shaped portion so that the side wall functions as the reflecting member. As a result, the plurality of reflecting members disposed between the light emitting modules can be easily formed at a low cost from a single plate member, and the assembly is facilitated.

 The invention's effect

 [001 6] As described above, according to the display device of the present invention, a sheet is attached to a support plate that supports a light emitting module or a translucent cover provided on the light emitting module, so that a desired character or figure can be displayed. By making the part and the color different from each other, good visibility can be ensured not only at night but also when the surroundings are bright, such as in the daytime. In addition, by changing the sheet, it is possible to easily cope with changing the characters and figures to be displayed.

 BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view showing a preferred embodiment of a display device according to the present invention. The display device 1 includes a support plate 2 having an alphabet “D” shape, a plurality of light emitting modules 4 arranged on the support plate 2, and inner and outer contour plates that surround the support plate 2 along its contour. 5 a, 5 b, an outer background plate 3 a surrounding the outside of the D-shaped support plate 2, and an inner background plate 3 b filling the inside of the D-shaped support plate 2.

[0019] On the surface of the support plate 2, as in the case of the support plate 2, there is an example of a light colored sheet 7 (see Fig. 4) which has the shape of the alphabet “D” and has a different color from the surrounding background plates 3 a and 3 b For example, it is attached with a double-sided tape, an adhesive, a screw or the like, and the light emitting module 4 is disposed on the colored sheet 7. In this way, by providing a colored sheet 7 of a different color from the background plates 3a and 3b on the support plate 2, even if the surroundings are bright as in the daytime, the desired character or figure (in this example, the alphabet G) “D”) can be seen well. The colored sheet 7 is preferably a light emitting module. It has the same color as the display color of Joule 4, which can further enhance the visibility. There is also an advantage that the color does not differ between the light emitting module and the non-light emitting module. Such a colored sheet 7 can be made of, for example, a thin metal, a plate made of wood, a cloth, or the like in addition to the bratic film. Since the coloring sheet 7 can be easily exchanged, it is possible to easily cope with a case where it is desired to change the color or shape of the figure or character to be displayed. Such an effect can be similarly obtained when the support plate 2 and the background plates 3a and 3b are not divided and constitute a single support plate. Further, a colored sheet may be attached to the surface of the background plates 3 a and 3 b (that is, the portion not constituting the alphabet “D”).

 In FIG. 1, each LED as a light emitting element is indicated by a circle, and a boundary between adjacent light emitting modules 4 is indicated by a short line. In this embodiment, the light emitting module 4 includes only one LED 10, includes two multiples, and includes three multiples. Each light emitting module 4 is preferably fixed on the support plate 2 with a double-sided tape adhesive, but another appropriate means (fixing bracket or the like) may be used. In the embodiment of FIG. 1, long and short linear light emitting modules 4 each including a plurality of LEDs 10 are arranged in parallel to represent the alphabet “D”. By using the long and short linear light-emitting module 4 in this way, wiring is simplified and assembly time is greatly reduced compared to the case where individual LEDs 10 are individually arranged on the support plate 2 and connected. .

[0021] FIG. 2a is a schematic diagram showing in more detail a light emitting module 4a including 12 LEDs 10 as an example of the light emitting module 4, and FIG. 2b is a light emission including two LEDs 10 It is the schematic diagram which showed the module 4b in more detail. The light emitting module 4a is a pair of two 1_ 巳 0 series bodies 1_1, L2 which are formed by connecting six LEDs 10 arranged in a straight line in series with each other, and a pair of LEDs 10 extending in the arrangement direction. Power line (positive power line 1 2 and negative power line 1 3), and each 1_ 巳 0 series body 1_ 1 and L 2 end is connected to the corresponding power line through resistor 11 Connected to 1 2 or 1 3. As a result, the two LED series bodies L 1 and L 2 are connected in parallel between a pair of power supply lines 1 2 and 1 3, and LED 1 0 is connected in series and parallel. I am doing. In addition, the desired DC power supply voltage can be directly applied to the power supply lines 12 and 13 by appropriately selecting the value of the resistor 11.

 [0022] The LEDs 10 connected as described above are accommodated in a light-transmitting tube 14 made of plastic or the like. A waterproof cap 15 is attached to both ends of the translucent tube 14, and the power supply lines 1 2 and 1 3 are drawn out through holes formed in the waterproof cap 15. Fill holes for passing power lines 1 2 and 1 3 with appropriate resin to prevent water from entering there. The power lines 1 2 and 1 3 that are cut out from the bow I are preferably provided with a waterproof male or female connector so that they can be easily connected to other light emitting modules 4. By using the waterproof light-emitting module 4 in this way, the entire light-emitting module 4 disposed on the support plate 2 is not covered with another housing or the like to be protected (waterproof) and exposed to the outside. Therefore, the display device 1 can be significantly reduced in weight, reduced in resources, and improved in safety during installation. Since the LED 10 that generates less heat and can be driven at a low voltage is used as the light source, the light emitting module 4 must be placed in close contact with the support plate (that is, in contact with the support plate or with a slight gap). In addition, the display device 1 can be made thinner than a neon sign or the like in which a neon tube must be arranged apart from the support plate. Further, it is preferable that the translucent tube 14 has a flat bottom (for example, a semicircular cross section) because it can be stably disposed on the support plate 2.

[0023] Similarly, in the light emitting module 4 b including two LEDs 10, an LED series body L 3 in which two LEDs 10 are connected in series is connected to a resistor 1 1 between a pair of power supply lines 1 2 and 1 3. Connected through. The LED series body L3 is housed in a translucent tube 14 and waterproof caps 15 are attached to both ends of the tube 14 so that water and dust do not enter inside. In this light emitting module 4 b, the resistor 11 is provided only at one end of the LED series body L 3 and the other end is directly connected to the negative side power line 1 3. However, the desired power supply voltage can be applied directly to the power supply lines 12 and 13 by appropriately selecting the value of the resistance 11 (in some cases, the resistor 11 may not be used). led The same applies to the light emitting module 4 including another number of 10s. Further, instead of using the LED series bodies L 1, L 2 and L 3, each L ED 10 may be connected in parallel between the power supply lines 12 and 13 via the resistor 11. In that case, the resistor 11 is required as many as the number of L ED 1 0, but even if one L ED 1 0 fails, the light emission of other L ED 1 0 is not affected.

 [0024] By configuring each light emitting module 4 as described above, the power lines 12 and 13 of the adjacent light emitting modules 4 are connected to each other via a connector (not shown), and a plurality of light emitting modules are connected. By connecting 4, the light emitting modules 4 located at the end of the connected light emitting module group can be connected to, for example, a 24 V DC power supply (not shown) to supply power to all the connected light emitting modules 4. It is possible to supply voltage (24 V). In addition, it is also possible to connect the power lines of adjacent light emitting modules 4 using a covered electric wire without using a connector so that the connection portion between the covered electric wire and the power line is located in the translucent tube. In that case, the number of connectors can be reduced and the cost can be reduced.

 FIG. 2 c is a schematic view showing another example of the light emitting module 4. In this example, a light emitting module 4c including six LEDs 10 is connected to a light emitting module 4d including four LEDs 10 and a light emitting module 4e including two LEDs 10. In these light emitting modules 4c, 4d, and 4e, the LEDs 10 are connected in series, but unlike the light emitting modules shown in FIGS. 2a and 2b, a pair of power supply lines 1 2, Rather than connecting between 1 and 3, one conductive line 17 directly connected to the anode or cathode of LED 10 at the end is drawn from each end. The three light emitting modules 4c, 4d, and 4e are connected in series by connecting the conductive wires 17 of the adjacent light emitting modules through a connector (not shown). In such a case, a direct current constant current power source may be used as the power source.

[0026] Contour plates 5a and 5b that can be provided as desired extending along the contour of the support plate 2 are thin and bendable plate materials (for example, aluminum or stainless steel with a thickness of 0.5mm) S US)), and the light from the light emitting module 4 is diffused outside. And helps to display the desired character or figure (in this example, the letter “D”) more clearly. If the height of the contour plates 5 a and 5 b is too high, the viewing angle may be reduced. Therefore, it is preferable that the height of the contour plates 5 a and 5 b be the same as the height of the light emitting module 4. Further, by using the background plates 3a and 3b, for example, the target character or figure can be clearly displayed without being affected by the state of the outer wall of the building to which the display device 1 is attached.

 [0027] Further, in the present embodiment, as indicated by the dotted line, the support plate 2 is vertically divided into two plate members 2a and 2b at the center in the horizontal direction of the alphabet "D", and The colored sheet 7 is also divided into two colored sheets 7a and 7b. As shown in FIG. 3, the plate members 2 a and 2 b to which the light emitting module 4 is attached are fitted into the background plates 3 a and 3 b at the installation site of the display device 1. In FIG. 3, only a part of the light emitting module 4 provided on the plate members 2a and 2b is shown for easy viewing. In this way, by dividing the support plate 2 into two or more plate members 2a and 2b, each plate member 2a and 2b can be made small and light, and light emission attached to each plate member 2a and 2b Since the number of modules 4 can be reduced, the combined weight of each plate member 2a, 2b and light emitting module 4 can be reduced, and handling can be facilitated. Therefore, even if the scaffolding is not assembled, the worker force with the ropes and gondola hanging on the outer wall of the building etc. The plate members 2a and 2b with the light emitting module 4 attached to one side can be easily placed in the specified position. It can be attached, no scaffold is required, and the working time and cost required for installing the display device 1 can be greatly reduced.

 [0028] The support plate 2 (plate members 2a, 2b) and the background plates 3a, 3b are preferably metal plates.

It is composed of a composite plate (for example, aluminum) and a plastic plate. For example, the remaining portion of the rectangular plate material cut out from the D-shaped support plate 2 forms the background plates 3a and 3b. Can do. In this way, wasted material can be eliminated or greatly reduced. The surfaces of the plate members 2a and 2b and the background plates 3a and 3b can be made to have any color or reflectivity as desired. Further, as shown in FIGS. 3 and 4, as an option, the plate-shaped cover 20 having the same translucency as the support plate 2 (transparent or translucent) is spaced above the light emitting module 4. May be provided. The transparent or translucent plate-shaped cover 20 can be suitably formed from, for example, acryl resin. The arrangement of the acrylic cover 20 above the light emitting module 4 is such that the gap between the support plate 2 and the background plates 3a and 3b along the contour of the support plate 2 is as shown in FIG. Place and fix a plurality of U-shaped support brackets 2 1 at appropriate positions at intervals in the contour direction, and fix the acrylic cover 20 to the upper surface of the support fixtures 2 1 by appropriate means such as screwing. Therefore, it can be suitably realized. The gap between the support plate 2 and the background plates 3a and 3b is preferably formed by a cutting allowance when the support plate 2 is cut out from the plate material. Thus, by providing the acrylic cover 20 above the light emitting module 4, the light emitting module 4 can be protected. In addition, when the translucent acrylic force bar 20 is provided, the light from the light emitting module 4 can be diffused to display without spots. The acrylic cover may be colored to a desired color. As shown in FIG. 4, the contour plates 5a and 5b are also preferably arranged and fixed in the gap between the support plate 2 and the background plates 3a and 3b, so that the thin contour plates 5a and 5b b can be easily held upright.

 [0030] As another embodiment, an opaque shielding plate may be provided in place of the translucent acrylic cover 20 and the contour plates 5a and 5b may be removed. In that case, the surface of the background plates 3a and 3b around the “D” -shaped shielding plate looks bright (sometimes referred to as back channel characters), and the display effect is different from that of the “D” -shaped light itself. Can be obtained.

FIG. 5 is a schematic plan view showing another embodiment of the display device according to the present invention. In this display device 30, a plurality of light emitting modules 3 4 a including green LEDs 40 a (shown by black circles in the figure) are arranged on a rectangular support plate 3 2 so as to form a leaf shape. . As in the above embodiment, the adjacent light emitting modules 3 4 a are connected to each other, and the light emitting modules 3 4 a at the ends of the connected green light emitting modules are connected to a power source (not shown). All connected The power supply voltage is supplied to all the light emitting modules 3 4 a.

 [0032] As in the embodiment of FIG. 5, a white light emitting module 3 4 b including a white LED 40 b (indicated by a white circle in the figure) around the green light emitting module 3 4 a and part of the leaf shape of the tree It may be arranged. Similar to the green light emitting module 3 4 a, these white light emitting modules 3 4 b are also connected between the adjacent light emitting modules 3 4 b. Thus, the LED light emitting modules 3 4 a and 3 4 b having different emission colors can be provided on the support plate 3 2. Although not shown in the figure, a contour plate as shown in FIGS. 1 and 4 is provided along the boundary between the light emitting modules 3 4 a and 3 4 b with different light emission colors so that the light colors of both are not mixed. It is preferable. Further, in the embodiment of FIG. 1, it is possible to obtain a different display effect by providing a light emitting module of a color different from that of the light emitting module 4 arranged in the D-shaped support plate 2 on the background plates 3a and 3b. it can.

 [0033] Also in the embodiment of Fig. 5, as indicated by the dotted line, the support plate 3 2 is divided into two plate members 3 2 a and 3 2 b in the vertical direction at the central portion, which facilitates handling. Therefore, the display device 30 can be easily attached to the outer wall of a building without assembling a scaffold.

 In the embodiment of FIG. 5, a leaf-shaped contoured sheet 4 2 that substantially surrounds the green light emitting module 3 4 a is provided on the support plate 3 2 (3 2 a, 3 2 b). ing. The colored sheet 42 has a color different from the surface color of the surrounding support plate 32. The colored sheet 4 2 preferably has a green color, and the surface color of the surrounding support plate 3 2 can be white. This makes it possible to recognize the leaf shape well not only at night but also when the surroundings are bright, such as in the daytime. In addition, by replacing the colored sheet 42 with one having a different shape or color, it is possible to easily cope with a change in the color or shape of the graphic or character to be displayed.

FIG. 6 and FIG. 7 are exploded perspective views similar to FIG. 3, showing still another embodiment of the display device according to the present invention. In these drawings, the same components as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted. The display device of the embodiment of FIG. 6 has a transparent cover with an outer shape substantially the same as the outer shape of the background plate 3a (in this example, a rectangle). Instead of mounting the colored sheet 7 (7a, 7b) on the support plate 2 (2a, 2b), the shape of the desired letter or figure (in this example the alphabet "D") The colored sheet 23 with translucent adhesive is attached, and the color of the part constituting the alphabet “D” of the translucent cover 2 2 is different from that of the other part. As a result, even when the surroundings are bright as in the daytime, the shape of the alphabet “D” can be seen well, and by changing the colored sheet 23, it can easily handle various shapes of characters or figures. can do.

As in the embodiment of FIG. 6, the display device of the embodiment of FIG. 7 also has a light-transmitting cover 2 2 having the same outline (in this example, a rectangle) as the outline of the background plate 3a. In the embodiment of FIG. 7, in contrast to the embodiment of FIG. 6, the colored sheet 24 is attached to a portion other than the portion constituting the alphabet “D”. In this case, the colored sheet 24 may be translucent or light-shielding. In this case as well, the same effects as in the above embodiment can be obtained.

 FIG. 8 is a plan view similar to FIG. 1 showing another embodiment of the display device according to the present invention, and the same components as those in FIG. In the display device shown in FIG. 8, the reflective member 45 5 a is provided between the rows of the light emitting modules 4, and accordingly, the number of rows of the light emitting modules 4 is reduced compared to the embodiment of FIG. The interval between the light emitting modules 4 adjacent to each other in the lateral direction is larger. As shown in the cross-sectional view of FIG. 9, the reflecting members 4 5 a positioned between the adjacent light emitting modules 4 are perpendicular to both sides facing the light emitting module 4 (more specifically, the direction perpendicular to the surface of the support plate 2). ) And reflects the light emitted from the light emitting module 4 to irradiate the outside. In addition, the reflecting member 4b located at the end has a reflecting surface only on the side facing the light emitting module, which is inclined with respect to the vertical direction and reflects the light emitted from the light emitting module 4 to radiate the outside. To do. Thereby, even if the number of the light emitting modules 4 is reduced, it is possible to obtain the same luminance and visibility as the embodiment of FIG.

FIG. 10 is a schematic plan view showing still another embodiment of the display device according to the present invention. In this example, instead of the letter “D”, a straight line shape ( Or the light emitting modules 4 are arranged in a straight line to represent a hyphen “one”). In addition, reflecting members 46 are disposed on both sides of the row of the light emitting modules 4. As shown in the sectional view of FIG. 11, each reflecting member 46 has a reflecting surface on the side facing the light emitting module 4 and is inclined with respect to the vertical direction. Further, the reflecting member 46 is integrally connected by a bottom wall 47 having a flat upper surface, and has a groove shape as a whole. The light emitting module 4 is disposed on the flat bottom wall 47. The top surface of the bottom wall 47 can also be a reflective surface. Thereby, the light emitted from the light emitting module 4 can be reflected and radiated to the outside, and the brightness and visibility can be improved. Such a linear display device can be arranged along the edge of the outer wall of a building, for example, and used to enhance the decoration effect. In the above embodiment, the reflecting surface is inclined with respect to the vertical direction. However, it is possible to obtain a certain luminance improvement effect even if the reflecting surface is not inclined.

 FIG. 12 is a cross-sectional view similar to FIG. 11 showing still another embodiment of the display device according to the present invention. In this embodiment, the display device includes a plurality of linear light emitting modules 4 arranged in parallel to each other, and a reflection member formed by bending a plate member having a reflection surface on the upper surface so as to form a plurality of substantially parallel groove portions. It has a body 50. Each groove portion of the reflector 50 has a flat bottom wall 51 and a pair of side walls 52 extending along both sides of the bottom wall 51 and facing each other. It is inclined with respect to the vertical direction so as to expand toward the front. The plurality of linear light emitting modules 4 are arranged on the flat bottom wall 51 of the groove-like portion, and the side wall 52 functions as a reflecting member. As a result, a plurality of reflecting members arranged between the light emitting modules 4 can be easily formed from a single plate material at a low cost, and assembly is also easier than in the case where the individual reflecting members are separate. Become.

[0040] Although the present invention has been described based on the preferred embodiments, the embodiments are for illustrative purposes and the present invention is not limited thereto. It goes without saying that those skilled in the art can make various modifications or changes without departing from the technical idea of the present invention defined by the claims. For example, in the above embodiment, the support plate is divided into two plate members. The number, position, etc. are arbitrary. An LED is suitable as the light emitting element, but other light emitting elements (for example, organic EL elements) may be used. Depending on the size of the display device, not only the support plate but also the background plate may be divided into a plurality of parts.

 Industrial applicability

 [0041] The display device of the present invention is suitable for use in displaying desired characters or figures indoors / outdoors for advertising and the like.

[0042] While the present invention has been described with reference to preferred embodiments thereof, the present invention is not limited to these embodiments so that those skilled in the art can easily understand. Any change can be made without departing from the scope of the present invention.

[0043] The entire contents of the priority application based on the Paris Convention of the present application and the prior art cited in the present application are incorporated herein by reference.

 Brief Description of Drawings

 FIG. 1 is a schematic plan view showing a preferred embodiment of a display device according to the present invention.

 2A is a schematic diagram showing an example of a light emitting module used in the display device of FIG.

 2b is a schematic view showing another example of the light emitting module used in the display device of FIG.

 FIG. 2c is a schematic view showing another example of the light emitting module used in the display device of FIG.

 3 is an exploded perspective view of the display device shown in FIG.

 FIG. 4 is a partial cross-sectional view taken along line I V _IV in FIG. 1, and details of the inside of the light emitting module are omitted.

 FIG. 5 is a schematic plan view showing another embodiment of the display device according to the present invention.

 FIG. 6 is an exploded perspective view similar to FIG. 3, showing another embodiment of the display device according to the present invention.

 FIG. 7 is an exploded perspective view similar to FIG. 3, showing another embodiment of the display device according to the present invention.

 FIG. 8 is a plan view similar to FIG. 1, showing another embodiment of the display device according to the present invention.

 FIG. 9 is a partial cross-sectional view taken along line I X _I X in FIG. 8, and details of the inside of the light emitting module are omitted.

FIG. 10 is a schematic plan view showing another embodiment of the display device according to the present invention. FIG. 11 is a sectional view taken along line XI -X i in FIG.

 FIG. 12 is a sectional view similar to FIG. 11 showing another embodiment of the display device according to the present invention. Explanation of symbols

 1 Display device

2 Support plate

 2 a, 2 b Plate member

 3a, 3b background board

 4, 4 a, 4 b, 4 c, 4 d, 4 e Light emitting module

 5 a, 5 b Contour plate

 7, 7 a, 7 b

 1 0 L E D

 1 1 Resistance

 1 2, 1 3 Power line

 1 4 Translucent tube

 1 5 Waterproof cap

 1 7 Conductive wire

 20 covers

 2 1 Support bracket

 22 Cover

 23, 24 coloring sheet

30 display devices

 32 Support plate

 32 a, 32 b Plate member

 34 a Light emitting module

 34 b White light emitting module

 40 a Green L E D

40 b White L E D

42 Colored sheet 45 b, bottom wall reflector bottom wall side wall

Claims

The scope of the claims  [1] a support plate;  A plurality of waterproof linear light-emitting modules arranged in close contact with the support plate so as to represent desired characters or figures on the support plate, and each of the linear light-emitting modules is translucent. A display device comprising a series of LEDs housed in a conductive plastic case, wherein the plurality of linear light emitting modules are exposed to the outside. [2] A part of the surface of the support plate has a color different from that of the support plate so that the desired character or figure-shaped portion of the surface of the support plate and the other portion have a different color. 2. The display device according to claim 1, wherein a sheet is attached.  3. The display device according to claim 2, wherein the sheet has a shape of the desired character or figure, and the light emitting module is disposed on the sheet. 4. The display device according to claim 1, wherein the support plate is divided into a plurality of plate members.  [5] The display device according to [1], wherein the plurality of linear light emitting modules are arranged substantially in parallel. 6. The display device according to claim 5, wherein a light emission color of the light emitting module and a color of the display are the same color. 7. The display device according to claim 1, wherein the support plate has a shape of the desired character or figure, and further includes a contour plate surrounding the support plate. 8. The display device according to claim 1, further comprising a light shielding or translucent cover disposed above the light emitting module. [9] The apparatus further includes a background plate arranged adjacent to the support plate, wherein the support plate is formed by cutting the plate material into a desired character or figure shape, and the background plate is the plate material described above. The display device according to claim 1, comprising a remaining portion after cutting the support plate. 10. The display device according to claim 9, wherein a contour plate surrounding the support plate is provided in a gap between the support plate and the background plate.  [1 1] A plurality of fixing means are spaced apart in the gap between the support plate and the background plate, and a light-shielding or translucent cover having substantially the same shape as the support plate is attached to these fixing means. 10. The display device according to claim 9, wherein the light shielding or translucent cover is arranged above the light emitting module.  [12] a support plate;  A plurality of waterproof linear light-emitting modules arranged in close contact with the support plate so as to represent desired characters or figures on the support plate;  A translucent cover disposed above the light emitting module, and the desired character or figure-shaped portion of the translucent cover and the other portion have different colors, A display device, wherein at least a part of the translucent cover is colored. [13] At least part of the translucent cover is colored by attaching a colored sheet to the translucent cover,  The colored sheet is made of a translucent sheet having the shape of the desired character or figure, and is attached to the translucent cover on a plurality of light emitting modules arranged in close contact with the support plate. The display device according to claim 12, wherein the display device is a display device.  [14] At least a part of the translucent cover is colored by adding a colored sheet to the translucent cover. It is made by attaching to —  14. The display device according to claim 13, wherein the colored sheet is attached to a portion of the translucent cover other than the desired character or figure. [15] a support plate;  A plurality of waterproof linear light-emitting modules arranged to represent desired characters or figures on the support plate; A display device comprising: a reflecting member disposed along the plurality of linear light emitting modules. 16. The display device according to claim 15, wherein the reflecting member has a reflecting surface inclined with respect to a direction perpendicular to the surface of the support plate.  [17] A reflector further formed by bending a plate member having a reflecting surface on the upper surface so as to form a plurality of substantially parallel grooves, each groove of the reflector has a flat bottom wall and A pair of inclined side walls extending along both sides of the bottom wall and facing each other, wherein the plurality of linear light emitting modules are disposed on the flat bottom wall of the groove-shaped portion, The display device according to claim 16, wherein a recording wall serves as the reflecting member.