JPH0486690A - Structure of display part of macrodisplay device - Google Patents

Abstract

PURPOSE:To enable displayed images to be viewed even outdoors by inclining the respective ends of optical fibers inserted into a plate body downward with respect to a horizontal plane, projectingly provided eaves parts continuous in a row direction between the rows of the optical fibers toward the front surface and providing protective glass on the front surface at the ends of the optical fibers positioned on the inner deep side between the erected eaves parts. CONSTITUTION:The respective ends of the optical fibers 40 inserted to the plate body 10 incline downward with respect to the horizontal plane and the eaves pats 13 continuous in the row direction are projectingly provided between the rows of the optical fibers 40. The protective glass 20 is disposed on the front surface at the ends of the optical fibers 40 positioned in the inner deep side between the adjacent eaves pats 30. Then, the solar light is shielded by the eaves pats 13 and do not directly fall onto the end faces of the optical fibers 40. The protective glass 20 exists in the deep position between the adjacent eaves parts 13 and, therefore, the possibility that the protective glass glows by reflection is eliminated. Further, the respective ends of the optical fibers 40 inserted to the plate body 10 incline downward with respect to the horizontal plane. The display images are brightly visible in this way even at the time of the use outdoors.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a display section structure of a magnifying display device that displays a magnified image using a large number of optical fibers, and more specifically, to a structure suitable for outdoor use. The present invention relates to the display structure.

<Prior art> This type of magnifying display device used in advertising panels, etc., focuses one end of a large number of optical fibers to form a light input section, while expanding the other end into a vertical plate-like body. The structure is such that they are inserted in a matrix shape in an open state to form a display section, and by projecting an image onto the light input section, the image is enlarged and displayed on the display section.

Among this type of magnifying display device, Utility Model No. 631788
The device disclosed in Publication No. 90-1 has a structure in which a film is brought into direct contact with the light entrance part and a light beam is directly irradiated from behind the film, so it is a one-type projector that projects an image onto the light entrance part from a distance. Compared to other devices, the displayed image is clearer and brighter (and has display capabilities that can be used outdoors).

However, even if this type of conventional magnifying display device has a display capability that can be used outdoors, it is actually difficult to use it outdoors. This is because until now there has been little experience of outdoor use, and above all, the display section does not have a structure suitable for outdoor use.

The structure of a conventional general display section is shown in FIG.

A substrate 51 is made of acrylic resin and has small holes 52 arranged in a matrix. The end of the optical fiber 40 is inserted into each small hole 52 from the back side, and a protective glass 53 is provided on the front side of the substrate 51. The reason why such a display structure is not suitable for outdoor use is as follows.

<Problems to be Solved by the Invention> When the display part is used as an outdoor advertising panel etc., the display part is installed at a high position, but the optical fiber 40
The directional angle of the light emitted from the screen is not very large, so when looking up at the display from directly below, the displayed image becomes dark. Since the end face of the optical fiber 40 is directly exposed to sunlight, and the protective glass 53 may shine due to reflection, the display section becomes even more difficult to see.

Removing the protective glass 53 will make the display part easier to see, but if the display part is large and subject to building standards, removing the protective glass 53 will expose flammable materials to the front side. , you will not be able to clear the law. Furthermore, regardless of the law, since the substrate 51 is made of acrylic resin, its fire resistance is extremely low.

Another disadvantage is that the end of the optical fiber 40 is degraded by ultraviolet light.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a display section structure of an enlarged display device in which a displayed image can be clearly seen even outdoors, and optical fibers are less likely to be deteriorated by ultraviolet rays.

Another object of the present invention is to provide a display structure for a magnifying display device that allows display images to be clearly seen even outdoors, has excellent fire resistance, and exhibits less deterioration of optical fibers due to ultraviolet rays.

<Means for Solving the Problems> The display section structure according to the present invention focuses one end of a large number of optical fibers to form a light input section, and expands the other end into a vertical plate-like body. This is a display section structure of a magnifying display device which is inserted into a display section, wherein each end of the optical fiber inserted into the plate-like body is inclined downward with respect to a horizontal plane, and there is a space between each row of optical fibers in the column direction. The optical fiber is characterized in that a continuous bottom part protrudes toward the front, and a protective glass is disposed in front of the optical fiber end located on the inner back side between the adjacent bottom parts.

The plate-like body can be made of metal such as aluminum or aluminum alloy.

It is preferable that the metal plate-shaped body is an extruded product extruded in the width direction, and a plurality of the plate-shaped bodies are sequentially connected in the vertical direction to form the display section.

<Function> In the display structure according to the present invention, sunlight is blocked by the bottom and does not directly hit the end face of the optical fiber.

The protective glass is also recessed between the adjacent bottom parts, so there is no risk of it shining due to reflection. Furthermore, each end of the optical fiber inserted into the plate-shaped body is inclined downward with respect to the horizontal plane. Therefore, the displayed image can be seen clearly even when used outdoors.

When the plate-shaped body is made of metal, a protective glass is placed in front of the optical fiber, so that no combustible material is exposed to the front side, and excellent fire resistance is ensured.

<Example> Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical cross-sectional side view showing an example of the structure of a display section according to the present invention.

The vertically installed plate-like body 10 is an integrally molded product made of aluminum-based metal extruded in the width direction, and has a continuous shape in the width direction.

A plurality of plate-shaped horizontal members 11 are provided on the plate-shaped body 10 at predetermined intervals in the vertical direction. Each horizontal member 11 is inclined slightly downward toward the front side.

A plate-shaped vertical member 12 is provided between each machine member 11, respectively. Each vertical member 12 is inclined forward toward the front side at the same angle as the horizontal member 11 so as to be orthogonal to the horizontal member 11. The end portion of the horizontal member 11 in front of the vertical member 12 serves as a bottom portion 13.

It is better for the bottom part 13 to be long in order to block sunlight, but
If the length is too long, the end of the optical fiber 40 cannot be seen from below, so an appropriate length is determined with these considerations in mind. The inclination angle of the bottom portion 13 is preferably about 5 to 5 degrees, similar to the end inclination angle of the optical fiber 40 described later.

A pair of glass holding parts 14.14 are provided at the base of the bottom part 13 to face each other in order to hold the protective glass 2o. The protective glass 20 is inserted from the side of the plate-shaped body 1o along the front of the vertical member 12, and is inserted into the bottom part 13.13.
It is kept in the deepest part between.

A fiber holding portion 15 is provided protruding from the back surface of the vertical member 12 . A plurality of fiber insertion holes 16 each having a circular cross section are formed in the fiber holding portion 15 at predetermined intervals in the width direction. The end of the optical fiber 40 is inserted into each fiber insertion hole 16 so as not to protrude toward the front side. The fiber insertion hole 16 is orthogonal to the vertical member 12, and the end of the optical fiber 40 inserted into the fiber insertion hole 16 is inclined downward at the same angle as the horizontal member 11.

The end inclination angle of the optical fiber 40 is preferably about 5 to 15 degrees. If this angle is small, the displayed image will be viewed from below (
If it is too small or too large, visibility from the horizontal direction will decrease.

Although not shown in FIG. 1, the upper surface of the horizontal member 11 located at the uppermost stage of the plate-shaped body 10 and the lower surface of the horizontal member 11 located at the lowermost stage of the plate-shaped body 10 are provided with a plate. Connection portions are provided for sequentially connecting the shaped bodies 10 in the vertical direction. Then, by sequentially connecting the plate-like bodies 10 in the vertical direction using the connecting portions, a display portion having a desired height is constructed. The number of optical fiber rows in each plate-shaped body 10 is, for example, 5 to 6 stages.

In the constructed display section, each fiber insertion hole 16 is arranged in a matrix or stacked shape. In order to increase the degree of integration of the optical fibers 40 in the display section,
Stacked bales are more convenient.

It is preferable to install a partition wall 60 between adjacent bottom parts 13 to partition the space in the width direction corresponding to the fiber insertion hole 16. As shown in FIG. 4, the partition wall 60 can also have a structure that is continuous in the width direction and easy to install. The protruding length of the partition wall 6o is preferably set slightly lower than the bottom portion 13 so as not to impede visibility in the width direction.

According to this display structure, although the directivity angle of the light emitted from the optical fiber 40 is not so large, the optical fiber 40
Since the end portion of the display unit 0 is inclined downward, the displayed image can be clearly seen from below even when the display unit is mounted at a high position as an outdoor advertising panel or the like.

Moreover, sunlight is blocked by the bottom part 13 and the optical fiber 40
Since the light does not shine directly on the edge of the screen, the displayed image will not become dark. Furthermore, the protective glass 2o is located deep between the bottom parts 13, so that the protective glass 2o does not shine due to reflection. Therefore, the displayed image can be seen clearly even outdoors. When the partition wall 6o is attached, the display surface becomes even darker and the clarity of the displayed image is further improved.

Regarding fire resistance, since the plate-shaped body 1° constituting the display section is made of aluminum-based metal and the end face of the optical fiber 40 is covered with the protective glass 2o, there is no exposure of combustible materials. Furthermore, the end of the optical fiber 40 is completely covered with the constituent metal of the plate-like body 1o, leaving only the end face.

Therefore, the fire resistance is extremely good. In addition, since the end of the optical fiber 40 is located deep between the bottom part 13 and is completely covered with the constituent metal of the plate-shaped body 10, its deterioration due to ultraviolet rays is extremely high. few.

Further, in the embodiment shown in FIG. 1, the plate-like bodies 1o are connected in sequence in the vertical direction, and the height of the display section is arbitrarily adjusted depending on the number of stages of the plate-like bodies 10. In addition, individual plate-like bodies 1
0 is manufactured at low cost by extrusion. Therefore, compared to the conventional display part structure in which it is necessary to order more acrylic resin plates depending on the size of the display part, manufacturing is easier and the manufacturing cost is lower.

2 and 3 are longitudinal sectional side views showing another example of the display structure according to the present invention.

In the embodiment shown in FIG. 2, the bottom portion 13 of the plate-shaped body 1o is joined to a vertical substrate 17 by welding or the like. The optical fiber 40 is inserted diagonally into the fiber holding portion 15 of the substrate 17 from the back side, and its end portion protrudes toward the front side of the substrate 17. The protruding end of the optical fiber 40 is covered with a cylindrical metal cap 30 having a protective glass 20 attached to its tip. Further, in the embodiment shown in FIG.
3 are integrally formed.

In either embodiment, sunlight is blocked by the bottom 13 and does not shine directly onto the end face of the optical fiber 40, and the protective glass 40 is also located at a recessed position between the adjacent bottoms 13, so there is no risk of it shining due to reflection. , coupled with the fact that each end of the optical fiber 40 is inclined downward with respect to the horizontal plane,
Display images are clearly visible even when used outdoors. Further, since the plate-like body 10 is made of metal, the end of the optical fiber 40 is surrounded by metal, and a protective glass is disposed in front of the optical fiber, it has excellent fire resistance. Furthermore, the end portion of the optical fiber 40 is less likely to be degraded by ultraviolet rays.

It is recommended that the display section be mounted slightly above the mounting aggregate behind it. This is because when the display unit is large, the mounting aggregate is assembled in a base pattern, and when the display unit is brought into close contact with the mounting aggregate, the optical fibers cannot bypass the mounting aggregate, and many optical fibers are attached to the mounting aggregate. This is because an optical fiber through hole would have to be made.

<Effects of the Invention> As described above, with the display structure of the magnifying display device according to the present invention, the displayed image can be clearly seen even outdoors without being affected by sunlight or reflection from the protective glass. Further, the bottom portion and the like suppress deterioration of the optical fiber end portion due to ultraviolet rays.

When the plate-shaped body is made of metal, excellent fire resistance is ensured, and deterioration of the optical fiber end due to ultraviolet rays is further suppressed.

When a metal plate-like body is extruded in the width direction and a plurality of metal plate-like bodies are sequentially connected in the vertical direction to form a display part, the plate-like body can be manufactured at a low cost, and the plate-like body There is an advantage that the height of the display section can be arbitrarily and easily adjusted depending on the number of stages.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional side view showing an example of the display structure according to the present invention, FIGS. 2 and 3 are vertical cross-sectional side views showing another example of the display structure according to the present invention, and FIG. 4 is a partition. A perspective view of the wall, and FIG. 5 is a longitudinal sectional side view of a conventional display structure. 10... Plate body 13... Bottom part 20... Protective glass 40... Optical fiber

Claims (3)

[Claims] (1) A display section structure of a magnifying display device in which one end of a large number of optical fibers is focused to serve as a light input section, and the other end is spread out and inserted into a vertical plate to serve as a display section. There it is,
Each end of the optical fibers inserted into the plate-shaped body is inclined downward with respect to the horizontal plane, and between each row of optical fibers, a continuous bottom part is provided in the row direction and protrudes toward the front. A display section structure of a magnifying display device, characterized in that a protective glass is disposed in front of an end of an optical fiber located on the inner back side. (2) The display section structure of the enlarged display device according to claim 1, wherein the plate-like body is made of metal. (3) The magnifying display device according to claim 2, wherein the plate-like body is an extrusion molded product extruded in the width direction, and a plurality of the plate-like bodies are sequentially connected in the vertical direction to constitute a display section. Display structure.