JP2004151371A - Light emission display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emission display device which uniformly emits light over the entire part of a pattern. <P>SOLUTION: The light emission display device 100 capable of properly displaying characters, graphics or the like by using a light emitting body 50 is provided with a pattern 5 consisting of a plurality of light emitting bodies 50, a reflection member 25 for reflecting the light irradiated from the light emitting body 50, and a shielding member 51 for shielding the light emitted in the light emitting direction of the light emitting body 50. The pattern 5 emits light only by the light reflected by the reflection member 25. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device used for displaying characters, figures, and the like on an advertising signboard or the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a display device for the purpose of advertisement, decoration, and the like, there is a signboard or the like configured by attaching a light-emitting body such as a light bulb or a light-emitting element (light-emitting diode (LED)). In such a signboard or the like, a plurality of luminous bodies are arranged at predetermined positions, and desired characters, designs, and the like are appropriately displayed. At this time, the luminous body is arranged so that the front surface of the signboard is arranged in the irradiation direction of the luminous body.
[0003]
[Problems to be solved by the invention]
However, the signboard character shown in the above-mentioned conventional example has a problem that the position of the luminous body is clearly illuminated, the shape of the luminous body is known, and the appearance is poor.
[0004]
Further, this signboard character has a problem in that the central portion of the illuminant in a pattern portion such as a character or a figure shines clearly and its periphery is blurred, so that the entire pattern cannot be uniformly illuminated.
[0005]
Further, in the pattern portion, a portion where light emitted from the illuminant reaches and a portion where light does not reach occur, and a corner of the pattern becomes dark, so that there is a problem that it is not possible to irradiate one pattern with good appearance.
[0006]
The problem to be solved by the present invention includes the above-mentioned problem as an example.
[0007]
Accordingly, an object of the present invention is to provide a light emitting display device in which the entire pattern emits light uniformly.
[0008]
[Means for Solving the Problems]
Hereinafter, the present invention will be described. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.
[0009]
A light-emitting display device (100) of the present invention is a light-emitting display device capable of appropriately displaying characters, designs, and the like using a light-emitting body (50), and includes a plurality of light-emitting bodies and light emitted from the light-emitting body. And a reflecting member (25) for reflecting the reflected light, wherein the pattern emits light only by the light reflected through the reflecting member.
[0010]
According to the present invention, since the light can be uniformly distributed to the entire pattern, the entire pattern can be uniformly emitted.
[0011]
Further, the luminous body is provided with a shielding member (51, 51a) for shielding light emitted in a luminous direction of the luminous body.
[0012]
According to this configuration, since the light emitted from the light emitter is not directly emitted to the outside, only the light emitter part does not shine clearly.
[0013]
Further, the luminous body is provided with a member (70) for diffusing light emitted from the luminous body.
[0014]
With this configuration, the light emitted from the light emitter can be diffused to the reflection member (25), and the light emitted from the light emitting display device becomes brighter. For this reason, the conventional brightness can be maintained even when the pitch of the light emitters is increased. As a result, the number of light emitters can be reduced, so that the cost can be reduced.
[0015]
Further, the surface of the reflection member is a diffuse reflection surface.
[0016]
In this case, since the light emitted from the light emitter is irregularly reflected, it is possible to reach the entire pattern and uniformly illuminate the entire pattern.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a light emitting display device according to the present invention will be described with reference to FIGS. However, the following examples illustrate a light emitting display device for embodying the technical idea of the present invention, and are not limited to the present embodiment.
[0018]
1 is an external view of a light emitting display device of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 shows an internal structure of the light emitting display device of the present invention, and FIG. FIG. 3B is an enlarged view of FIG. 2B in another embodiment.
[0019]
The light-emitting display device 100 shown in FIG. 1 includes a substantially square base 2 and a signboard body 10 having a pattern 5 for displaying characters, figures, and the like placed on the base 2. Further, a plurality of light emitters 50, 50, ..., 50 are provided at predetermined positions inside the signboard body 10. Further, the base 2 and the signboard main body 10 are fixed on the base 2 by bonding or the like, but may be fixed by a fixing member such as a bolt and nut.
[0020]
The pattern 5 is a character or a graphic (a signboard character) to be displayed. In the present embodiment, for example, the letter "A" is formed. Although not shown, this pattern 5 displays a company name or the like as an advertisement by combining a plurality of characters or the like. The pattern 5 may display not only alphabets and kanji but also symbols, various patterns, service marks, and the like. A signboard is formed by disposing the signboard body 10 having a plurality of patterns 5 on the base 2. In addition, the pattern 5 emits light as a signboard character when a plurality of light-emitting bodies 50 incorporated in the signboard main body 10 emit light. The arrows in FIGS. 2, 3A and 3B indicate the light emitting direction of the pattern.
[0021]
The signboard body 10 includes a frame 20 for forming a pattern, and a light emitting body 50. The frame 20 includes a bottom plate 21 and a side plate 22 that is vertically formed from a predetermined portion of the bottom plate 21 along the character frame of the pattern 5. The bottom plate 21 and the side plates 22 are formed using a plastic, an acrylic plate, or the like.
[0022]
In addition, a reflection film 25 as a reflection member for reflecting light is provided on an upper portion of the bottom plate 21 inside the frame 20 and on a wall surface of the side plate 22. The reflection film 25 may be made of, for example, stainless steel or the like, or may be formed by applying paint to the inner wall of the bottom plate 21 and / or the side plate 22. Further, the reflection film 25 may be formed by applying a paint. In addition, the reflection film 25 may be provided with fine irregularities to diffusely reflect light. Accordingly, light can be scattered in various directions, and the entire pattern can be uniformly irradiated by the reflected light.
[0023]
Further, a plurality of light emitters 50 are provided at predetermined intervals inside the signboard body 10. The light emitter 50 is, for example, a light emitting diode (LED). The light emitter 50 is provided so as to emit light in the irradiation direction indicated by the arrow in FIG. Further, the light emitting body 50 includes a shielding film 51 as a shielding member for shielding light from the tip to the side. The shielding film 51 may be formed by directly coating the light emitting body 50 with an enamel water-based paint, or may be covered with a rubber-like film that is not melted by heat or the like. Thus, the light emitted from the light emitting body 50 can emit light in a direction opposite to the normal light emitting direction.
[0024]
Further, the light emitting body 50 is supported by the support member 55. The support member 55 is provided in parallel with the bottom plate 21 at a predetermined interval. The end of the support member 55 is connected to and supported by the side plate 22 forming the pattern 5. Further, a transparent member is used as the support member 55 to transmit light. The member is, for example, an acrylic plate or the like. Although not shown, the luminous body 50 may be directly adhered to the bottom plate 21 or the like using an adhesive or the like, and may be fixed at a predetermined position of the frame 20.
[0025]
Further, the inside of the frame 20 of the pattern 5 partitioned by the side plates 22 is sealed with a transparent resin 40 or the like, and a resin containing a predetermined paint is mixed on the upper portion of the resin 40 (opening formed by the side plates 22). Etc. are sealed. As this resin, a urethane resin, an epoxy resin, an acrylic resin, or the like is used.
[0026]
Further, as shown in FIG. 3B, the inside of the frame 20 of the pattern 5 partitioned by the side plates 22 may be hollow. In that case, the lid 45 is provided in the opening 60 formed by the side plate 22. The lid 45 is formed using an acrylic plate or the like. When the signboard character is desired to be colored in a predetermined color, a resin or the like 40a containing a predetermined paint may be provided on the lid 45 as shown in the figure.
[0027]
Further, the frame 20 of the pattern 5 may use a transparent resin 40 or the like instead of the side plate 22 and the bottom plate 21. Further, a resin or the like 40a containing a predetermined paint may be used. As a result, light can be emitted toward many directions.
[0028]
The operation of the light emitter in the light emitting display device will be described.
[0029]
Since the light-emitting body 50 is covered with the shielding film 51 so as not to emit light directly to the outside, light emitted from the light-emitting body 50 is emitted from a part of the light-emitting body 50 as shown by an arrow in FIG. It leaks and is discharged toward the bottom plate 21 and the side plate 22. Further, each light emitting body 50 is electrically connected to each other, and light emission is controlled.
[0030]
As a result, when the light emitting body 50 emits light, the light is reflected by the reflection film 25 and transmitted through an acrylic plate, a lid or the like, and emits light to the outside. In this way, light is not emitted directly to the outside but emitted indirectly, so that the light reaches the entire pattern, so that the entire pattern can be uniformly emitted.
[0031]
As described above, the light-emitting display device 100 configured to appropriately display characters, designs, and the like using the light-emitting body 50 of the present invention includes a plurality of light-emitting bodies 50 and light emitted from the light-emitting body 50. And a reflection film 25 as a reflection member for reflecting light. The pattern 5 is irradiated only with light reflected through the reflection film 25. Further, when the light emitting body 50 is provided in the pattern light emitting direction, the light emitting body 50 may include a shielding film 51 as a shielding member for shielding light emission in the light emitting direction. Further, the surface of the reflection film 25 may be a diffuse reflection surface.
[0032]
According to the light emitting display device 100, since the light emitted from the light emitting body 50 is uniformly distributed over the entire pattern 5, it is possible to uniformly illuminate the entire pattern 5.
[0033]
FIG. 4 is an enlarged view of B of FIG. 2 in another embodiment. In FIG. 4, the same reference numerals are given to the same parts as those in FIG. 3A, and the description thereof will be omitted.
[0034]
As shown, a light diffusion member 70 for diffusing light emitted from the light emitter 50 is provided below the light emitter 50. The light diffusing member 70 is a circular transparent or milky white member. The light diffusion member 70 is, for example, an acrylic plate or the like. The light-emitting body 50 and the upper surface of the member 70 are coated with a shielding paint (for example, an enamel-based water paint) for shielding light, thereby forming a shielding film 51a. Thus, the shielding film 51a is provided in the light emitting direction of the light emitting body 50.
[0035]
As described above, the light-emitting display device 100 configured to appropriately display characters, designs, and the like using the light-emitting body 50 of the present invention includes a plurality of light-emitting bodies 50 and light provided below the light-emitting body. A diffusion member 70, a shielding film 51 a for shielding light from being emitted in the emission direction of light emitted from the light emitter 50, and a reflection member serving as a reflection member for reflecting light emitted from the light emitter 50. And a pattern 5 including the film 25, and the pattern 5 is irradiated only with light reflected through the reflective film 25. Further, the surface of the reflection film 25 may be a diffuse reflection surface.
[0036]
As a result, the light emitted from the light emitting body 50 is diffused radially in the direction opposite to the normal light emitting direction and in the outer circumferential direction of the member 70 provided below the light emitting body 50 as shown by the arrow in the drawing. (Light can be diffused to the reflective film 25). Therefore, the light emitted from the light emitting display device 100 is brighter than the case where the member 70 is not provided below the light emitting body 50 shown in FIGS. 3A and 3B. Therefore, the conventional brightness can be maintained even when the pitch between the light emitting bodies 50 is increased. Thereby, the number of the light emitters 50 can be reduced, and the cost can be reduced.
[0037]
The present invention is not limited to the above embodiments, but may be implemented in various forms. For example, the shielding films 51 and 51a provided in the light emitting direction of the light emitting body 50 are not provided on the entire light emitting body but need not emit at least the emitted light directly to the outside. It is sufficient if it is provided in a part of.
[Brief description of the drawings]
FIG. 1 is an external view of a light emitting display device of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
3 shows the internal structure of the light emitting display device of the present invention, wherein FIG. 3 (a) is an enlarged view of FIG. 2B and FIG. 3 (b) is an enlarged view of FIG. 2 in another embodiment.
FIG. 4 is an enlarged view B of FIG. 2 of a light emitting display device according to another embodiment of the present invention.
[Explanation of symbols]
5 Pattern 25 Reflective film (reflective member)
50 luminous body 51, 51a shielding film (shielding member)
70 Light diffusion member (member)
100 light-emitting display device

Claims (4)

A light-emitting display device capable of appropriately displaying characters, designs, and the like using a light-emitting body,
A plurality of light emitters,
A reflecting member for reflecting light emitted from the illuminant,
Having a pattern comprising
The light emitting display device wherein the pattern emits light only by light reflected through the reflection member. The light emitting display device according to claim 1, wherein the light emitting body includes a shielding member for shielding light emitted in a light emitting direction of the light emitting body. The light emitting display device according to claim 1, wherein the light emitting body includes a member for diffusing light emitted from the light emitting body. The light emitting display device according to claim 1, wherein the surface of the reflection member is a diffuse reflection surface.

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