JP4616286B2 - Mosaic illumination display device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a mosaic type panel that displays a screen by mounting tiles on each of the grids of a grid formed in a vertical and horizontal grid pattern, and performing display control by controlling the lighting of each tile. The present invention relates to a display device.

  In the mosaic type panel, the size of the tiles constituting the board surface is a display unit, and in the illuminated display device, the illumination state of one entire tile is usually changed. Therefore, in order to change the display in a small unit, in addition to using a grid with a small grid interval, as disclosed in Patent Document 1, a concept of using an auxiliary grid that partitions one grid small is known. . However, in order to construct a large board surface, an illuminated display device in which light emitting diodes as disclosed in Patent Document 2 are arranged at a high density in order to use a grid with a certain size of grid and provide high-precision display. It is efficient to use.

In Cited Document 2, a light guide member (light guide prism) is disposed between a light source such as a light emitting diode and a front illumination plate, and a display shape is engraved on the light guide prism with slit-shaped grooves. The idea of performing hieroglyphistic display by turning on a light source corresponding to a display shape is disclosed.
JP-A-9-233633 JP-A-5-252624

  The invention described in Patent Document 1 can be finely displayed by using an auxiliary grid that divides one cell small in a part of the display surface, but it is uneconomical to display the entire board surface finely, It takes a lot of labor and is difficult to implement. Although it is possible to change the display to a small tile size at an arbitrary position on the completed board surface, it is very laborious and uneconomical. In the invention disclosed in Patent Document 2, it is possible to display an image by illumination in one tile. However, the illumination display by one tile is changed as if it is a board surface by a plurality of smaller tiles. It was not possible to display the light properly.

  In view of the above-mentioned drawbacks of the prior art, the present invention provides a variety of displays by changing the board surface freely as if it were an illuminated display with small tiles only by controlling the lighting drivers of a large number of light sources, that is, by changing the driver software. It is an object of the present invention to realize an illuminated display device that can be used. Another object of the present invention is to provide a light guide prism structure that is more effective and easy to manufacture when used in an illumination display device capable of changing the display. is there.

The present invention relates to a mosaic panel in which square tiles are mounted on each of the bottlenecks 2 and 2 of a grid 1 to form a board surface as a whole. It is related.
According to the first aspect of the present invention, a large number of light emitting diodes 5 are disposed on the inner bottom of the rectangular frame-shaped reflector 4, and a light guide prism 7 is disposed between the light emitting diodes 5 and the illumination plate 6 on the front surface of the reflector 4. . The light guide prism 7 disposed inside the reflector 4 is divided into a plurality of illumination areas 10 and 10 by providing slit-like cuts 8 and 9 in a vertical and horizontal grid pattern, and light emitting diodes corresponding to the illumination areas 10 and 10. Illumination display is performed in a controllable state for each of the illumination areas 10 and 10 by performing lighting control 5 and 5.

  The invention according to claim 2 relates to the structure of the light guide prism 7 disposed between the light emitting diode 5 and the illumination plate 6, and the longitudinal cuts 8 and 8 and the lateral cuts 9 and 9 formed in the light guide prism 7 are provided. , Both shall penetrate both front and back. At this time, in order to maintain the integrity of the light guide prism 7, an uncut Z is provided so that the vertical and horizontal cuts do not intersect at the intersection of the vertical cut 8 and the horizontal cut 9. .

  According to the third aspect of the invention, when the invention of the second aspect is carried out, the longitudinal cuts 8 and 8 and the transverse cuts 9 and 9 penetrating the front and back surfaces formed in the light guide prism 7 are arranged in a grid pattern. For one of the vertical and horizontal cuts passing through the intersection of the shapes, the other cut of the vertical and horizontal cuts is left between the cuts without reaching the intersection. By providing Y, the integrity at the intersection is maintained.

  The invention described in claim 4 is to divide the interior of the reflector 4 vertically and horizontally into a plurality of small regions 11 and 11. Then, small light guide prisms 7a and 7a are arranged in the partitioned small regions 11 and 11, respectively. The small light guide prism 7a is divided into illumination regions 10 and 10 facing at least one light-emitting diode 5 by a vertical cut 8a and a horizontal cut 9a.

  The invention described in claim 5 relates to the vertical cut 8a and the horizontal cut 9a with respect to the small light guide prism 7a, and the cuts 8a and 9a penetrate both the front and back surfaces, and the vertical cut 8a and the horizontal cut. 9a is that an uncut Y is provided at the intersection of the vertical cut 8a and the horizontal cut 9a so that the cuts 8a and 9a do not intersect.

  According to the first aspect of the present invention, the light-emitting diode 5 can be finely displayed as a plurality of display surfaces obtained by dividing one illumination display device vertically and horizontally by controlling the lighting driver, and can be greatly controlled by controlling the lighting driver. Illumination display can be performed in units of display surfaces, and a variety of illumination displays can be realized as a whole.

  According to the second aspect of the present invention, it is possible to eliminate the continuous portions in the thickness direction of the vertical cuts 8 and 8 and the horizontal cuts 9 and 9, and the boundary between the illumination regions 10 and 10 defined by the cuts. Becomes clear and the display function as a mosaic type is improved. In addition, when cutting into the light guide prism 7, it is not necessary to process the cut by leaving a slight thickness by, for example, laser processing, and the light guide prism can be efficiently manufactured.

  According to the invention described in claim 3, in carrying out the invention described in claim 2, there is less light leakage and interference at the intersection of the vertical cut 8 and the horizontal cut 9, and a clear mosaic A formula illumination display can be realized. In addition, since the cutting in either the vertical direction or the horizontal direction can be continued during the cutting process, it can be manufactured more efficiently.

  According to the fourth aspect of the present invention, the interior of the reflector 4 is partitioned into a plurality of small regions 11 and 11, and the small light guide prism 7 a is arranged for each small region 11. Therefore, the light of one small region 11 is not transmitted to the other small regions, and the small regions are divided into smaller illumination regions 10 and 10 so that various illumination displays can be performed. Further, since the light guide prism is processed with the small light guide prism 7a as a unit, the processing becomes easy.

  According to the invention described in claim 5, in implementing the invention described in claim 4, the boundary between the illumination area and the illumination area can be made clearer and the cuts 8a and 9a can be easily processed. .

Embodiments of a mosaic illumination display apparatus according to the present invention will be described below with reference to the accompanying drawings.
1 is an exploded perspective view of an illuminated display device according to the present invention, FIG. 2 is a plan view of the illuminated display device mounted on a grid, and FIG. 3 is a sectional view taken along line III-III in FIG.

  As shown in FIG. 2, the illuminated display device according to the present invention is used by being attached to a narrow path 2 of a grid 1 which is a grid frame made mainly of metal and formed in a vertical and horizontal grid pattern with a side length L × L. . The metal grid 1 displays only a part of the drawing, but has a size necessary for a display panel.

  The illuminated display device 3 to be mounted on the grid 1 is fixed to the mounting base 12 that can be detachably mounted on the grid 1 by fixing the light emitting diode substrate 13 and the reflector 4 constituting the illuminated display device. An illumination plate 6 is mounted on the front surface. The mounting base 12 is made of a copper alloy having good thermal conductivity and spring property, and the light emitting diode substrate 13 and the reflector 4 are fixed with an insulating sheet 14 having good thermal conductivity interposed therebetween. A large number of light emitting diodes 5 and 5 are arranged in a matrix on the light emitting diode substrate 13, and the reflector 4 is a square having a side dimension of L, and a through-hole that matches the arrangement of the light emitting diodes on the bottom surface thereof. 15 and 15 are drilled.

The light guide prism 7 made of, for example, acrylic resin is disposed inside the reflector 4, and the illumination plate 6 is mounted by attaching the illumination plate 6 with a light-transmitting diffusion sheet 16 interposed on the front surface that is an open end. The light emitting diode 5 is illuminated uniformly. The light guide prism 7 has a constant thickness that is accommodated in the reflector 4 without gaps, and guides the light from the light-emitting diode 5 to the illumination plate 6. The light guide prism 7 is slit-like in a vertical and horizontal grid pattern. The vertical cuts 8 and 8 and the horizontal cuts 9 and 9 are provided to divide the light-emitting regions 10 and 10 into at least one light-emitting diode 5 corresponding to the light-emitting regions 10 and 10. Yes. Thereby, the light of the light emitting diode 5 is guided forward for each illumination region 10.
As shown in FIG. 1, the vertical cuts 8 and 8 and the horizontal cuts 9 and 9 provided in the light guide prism 7 are formed from the bottom to the top of the drawing, with a slight thickness on the side of the illumination plate 6. The integrity of the light guide prism 7 is maintained.

The illumination plate 6 mounted on the front surface of the reflector 4 may be flat, but in the embodiment shown in FIG. 1, the outer surface is partitioned into vertical and horizontal grids by Y-shaped cross sections 17. Providing the Y-shaped cuts 17 on the surface of the illumination plate 6 prevents the light from diffusing and interfering with the illumination plates, and can clearly illuminate the partition area 18 formed by the Y-shaped cuts 17.
That is, the partition area 18 partitioned by the Y-shaped cut 17 has the appearance of a single tile, and the Y-shaped cut 17 having a deep cut portion can prevent light from moving within the illumination plate.

  The number of sections of the illumination plate 6 by the Y-cuts 17 is not particularly limited. In FIG. 1, the surface of the illumination plate 6 is divided into four divided areas 18 by a cross-shaped Y-shaped notch 17, and one divided area 18 corresponds to 16 illuminated areas 10 (6-1 ), The embodiment of the illumination plate 6 (6-2) in which the surface of the illumination plate is divided into 16 by the Y-shaped cuts 17, and one partition region 18 corresponds to four illumination regions 10, and the illumination plate 6 illustrates an embodiment of the illumination plate 6 (6-3) in which the surface of 6 is divided into 64 and one partition region 18 corresponds to one illumination region 10.

  In the embodiment shown in FIG. 4, the light guide prism 7 integrally formed in the embodiment shown in FIG. 1 is configured by a plurality of small light guide prisms 7 a and 7 a. That is, the inside of the reflector 4 is divided into four small and long regions 11 by dividing the inside of the reflector 4 into four small and long portions by the minute ribs 19 and 19 on the bottom surface, and small light guide prisms 7a and 7a are arranged for each small region 11. The small light guide prism 7a is divided into a cross shape by cuts 8a and 9a from the bottom surface to form four illumination regions 10 and 10, and one light emitting diode 5 corresponds to one illumination region 10. is doing. A small diffusion sheet 16 a corresponding to the size of the small light guide prism 7 a is interposed between the small light guide prism 7 a and the illumination plate 6, and the large illumination plate 6 is mounted on the front surface of the reflector 4. The illumination plate 6 is divided into four equal parts by Y cuts 17 to form 16 partition regions 18.

  In this embodiment, since the light of one small light guide prism 7a does not leak to other adjacent small light guide prisms 7a, the boundary of the illumination state for each partition region 18 of the illumination plate 6 becomes clear, One partition region 18 of the illumination plate 6 can be illuminated by being divided into four. In the illustrated embodiment, the inside of the reflector 4 is divided into 16 parts by dividing the vertical and horizontal directions into four equal parts by the minute ribs 19, but the vertical and horizontal parts are divided into arbitrary numbers, and a small light guide is provided to the divided rectangular small areas 11. A prism 7a can be arranged. The small area 11 does not necessarily have to be a square, and may be a rectangle. However, when the small light guide prism 7a is partitioned into a plurality of illumination areas 10 and 10 by the cuts 8a and 9a, at least one light emitting diode 5 is associated with one illumination area 10.

  The vertical cut 8 and the horizontal cut 9 in the light guide prism 7 of the embodiment shown in FIG. 1 are cut upward from the lower surface to ensure the integrity of the light guide prism 7 while leaving a little thickness. Yes. However, for example, it is not always easy to form a slit with a transparent acrylic resin material by leaving as thin a thickness as possible by laser processing, and there is a possibility that light may leak in the thickness portion and the boundary may be unclear. Therefore, in the embodiment of the light guide prism 7 shown in FIG. 6, the vertical cut 8 and the horizontal cut 9 are formed as through holes so that the processing is easy and the light in one illumination region 10 is adjacent. The light guide prism 7 with less possibility of leaking into the illumination region was realized.

  The light guide prism 7 whose one side dimension is L in the embodiment shown in FIG. 6 is formed as a continuous through-hole with an incision 8 in the vertical direction every dimension 1 / 8L left uncut from the outer peripheral surface. And the horizontal cut 9 is configured as a through hole that is interrupted every 1/8 L of dimension. At this time, the horizontal cut 9 is provided with an uncut X between the outer peripheral surface and an uncut Y between the vertical cut 8 to ensure the integrity of the light guide prism 7 as a whole. . The uncut portions X and Y are made as small as possible so that light leakage does not occur as much as possible.

  In the light guide prism 7 of the embodiment shown in FIG. 6, both the outer peripheral surface and the cut surface function as a light reflecting surface in the prism, and the vertical cut 8 and the horizontal cut 9 in one illumination region 10. As shown by the arrow in the enlarged display portion of FIG. 6, the light incident near the intersection is unlikely to be reflected and leaked from the uncut X or Y portion to the adjacent illumination region. Since there is no uncut portion in the thickness direction, there is no light interference on the surface portion of the illumination region 10, and a clearer illumination display can be realized.

  As shown in FIG. 8, the remaining portion of the intersection between the vertical cut 8 and the horizontal cut 9 may be left uncut and form a cut Z, In this case, as indicated by an arrow in the enlarged display portion of FIG. 8, a portion in which the light incident on the uncut Z portion passes directly to the adjacent illumination region 10 is generated. For this reason, light leakage is more likely to occur as compared with the case where the one longitudinal cut is continued. Therefore, it is preferable to implement the light guide prism of the embodiment shown in FIG. 8 with the uncut portion Z being very small.

  As for the vertical and horizontal cuts with respect to the light guide prism 7, it is preferable that either one of the cuts is continued at the intersection. However, in addition to the embodiment shown in FIG. 6, the vertical cut 8 and the horizontal cut as in the embodiment shown in FIG. The direction cuts 9 can also be continued alternately at the intersections. In the embodiment shown in FIG. 7, the uncut portion X with respect to the outer peripheral surface of some of the cuts 8 and 9 is eliminated. However, as long as the integrity of the light guide prism 7 can be maintained, the uncut portion X is eliminated. As a result, clearer illumination display can be realized.

  In the embodiment shown in FIG. 4, it is proposed that the light guide prism 7 is constituted by a plurality of small light guide prisms 7a, and the small light guide prism 7a is formed by a plurality of illuminations by a vertical cut 8a and a horizontal cut 9a. Explained that the area 10 is partitioned. Also in the cut provided in the small light guide prism 7a, the vertical cut 8a and the horizontal cut 9a are penetrated in the thickness direction as shown in FIG. This can be carried out in a state in which an uncut Y is formed at the intersection of the directional cut 8a and the horizontal cut 9a. Even in this case, the integrity of the small light guide prism 7a can be maintained, and clear illumination display can be realized.

FIG. 10 shows an example of a display panel using an illuminated display device according to the present invention, and FIG. 11 shows a state in which a similar display panel is configured by a conventional illuminated display device. The display panel in the illustrated example is a usage example for displaying the flow of electricity in the power transmission equipment in the area A surrounded by the frame 20 and the power receiving equipment in the area B surrounded by the frame 21, and the surface of the mosaic, that is, the illumination plate The board surface is constructed by describing necessary equipment symbols on the surface.
The conventional display panel shown in FIG. 11 is a mosaic display panel with one grid on the drawing as the grid grid dimensions, and the frames 20 and 21 are described in a state that cannot be changed by painting on the mosaic surface (illumination plate surface). However, illumination display is performed using a mosaic (one grid) as a display unit.

The display panel shown in FIG. 10 is provided with 16 partition areas 18 obtained by equally dividing the surface of the illumination plate having a side length L into 4 parts in the vertical and horizontal directions. As shown in FIG. An example of a display panel configured by an illumination display device provided with a single illumination region 10, 10 is shown. The frame for displaying the area A and the frame for displaying the area B perform line display 22 (see (c) of FIG. 10) by illuminating the illumination areas that are continuous vertically and horizontally, and the devices described in one display area As shown in FIG. 10 (b), the symbols are illuminated for each of the four illumination areas 10 and 10, as necessary.
Further, in the area A and the area B, the line display 23 is configured to be illuminated and displayed by a color corresponding to the voltage state in a range including a certain line or device.

  As shown in the above embodiment, in the mosaic illumination display device according to the present invention, the illumination plate 6 which is the display surface of one illumination display device is divided into a plurality of illumination regions to perform clear and complex illumination display. be able to. For example, the line display 22 indicating the area A and the area B can be freely changed and displayed, and the device and the power transmission line are changed to a color corresponding to the voltage corresponding to the on / off of the circuit breaker. To call attention. Further, on the display surface on which one device is displayed, as shown in FIG. 10 (b), various illumination displays such as a color change corresponding to the operation state of the device (pressurized voltage, etc.) can be performed. .

  The light emitting diode 5 includes a plurality of light source colors by one light emitting diode, and the color can be changed by a combination of light sources. Therefore, it is possible to perform flashing of illumination and color change under the control of the lighting driver of the light emitting diode.

FIG. 1 is an exploded perspective view of an illuminated display device according to the present invention, FIG. 2 is a plan view of an illumination display device mounted on a grid, 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is an exploded perspective view of an illuminated display device showing another embodiment according to the present invention, FIG. 5 is a longitudinal sectional view of the illuminated display device of the embodiment shown in FIG. FIG. 6 is a plan view showing an embodiment of a light guide prism; FIG. 7 is a plan view showing another embodiment of the light guide prism; FIG. 8 is a plan view showing still another embodiment of the light guide prism; FIG. 9 is a plan view showing an embodiment of a small light guide prism; FIG. 10 is a plan view showing an example of a display panel using the illumination display device according to the present invention, 11 is a plan view showing a conventional display panel equivalent to FIG.

DESCRIPTION OF SYMBOLS 1 ... Grid, 2 ... Kushiro, 3 ... Illuminated display apparatus, 4 ... Reflector, 5 ... Light emitting diode, 6 ... Illuminating plate, 7 ... Light guide prism, 7a ... Small light guide prism, 8, 8a, 9, 9a ... Incision, 10 ... Illumination area, 11 ... Small area, 12 ... Mounting base, 13 ... Light emitting diode base, 14 ... Insulating sheet, 15 ... Through hole, 16 ... Diffusion sheet, 16a ... Small diffusion sheet, 17 ... Y-cut, 18 ... partitioned area, 19 ... minute rib, 20, 21 ... frame, 22, 23 ... line display, A, B ... area, X, Y, Z ... uncut.

Claims (5)

In a mosaic illumination display device in which a large number of light emitting diodes are arranged on the inner bottom of a rectangular frame-shaped reflector, and a light guide prism is arranged between the light emitting diodes and an illumination plate on the front surface of the reflector,
The light guide prism is divided into a plurality of illumination areas by providing slit-like cuts in a vertical and horizontal grid pattern, and performs lighting control of light emitting diodes corresponding to the respective illumination areas.   The vertical and horizontal cuts formed in the light guide prism disposed between the light emitting diode and the illumination plate should penetrate both the front and back surfaces, and the vertical and horizontal cuts at the intersection of the vertical cut and the horizontal cut. A mosaic-type illuminated display device characterized in that uncut portions are provided so that the cuts do not intersect to maintain the integrity of the light guide prism.   The vertical and horizontal cuts penetrating both the front and back surfaces formed in the light guide prism are the vertical and horizontal cuts at the intersection part with respect to either the vertical or horizontal cut passing through the intersection part. 3. The mosaic illumination display device according to claim 2, wherein an uncut portion is provided between one of the cuts and the other cut without reaching the intersection. In a mosaic illumination display device in which a large number of light emitting diodes are arranged on the inner bottom of a rectangular frame-shaped reflector, and a light guide prism is arranged between the light emitting diodes and an illumination plate on the front surface of the reflector,
The light guide prism arranged inside the reflector is divided into a plurality of small areas in a vertical and horizontal grid, and a small light guide prism is arranged for each of the divided small areas, and the small light guide prism is arranged in the vertical direction. A mosaic-type illuminated display device, which is divided into an illumination region facing at least one light-emitting diode by incision and lateral incision.   The vertical and horizontal cuts for the small light guide prism are to penetrate both the front and back surfaces, and both the vertical and horizontal cuts are left uncut between the outer circumferential surface and the vertical and horizontal cuts. 5. The mosaic illumination display device according to claim 4, wherein the intersection of the cuts is provided with a cut so that the cuts in the vertical direction and the horizontal direction do not intersect to maintain the integrity of the small light guide prism.

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