JP2003280559A - Light emitting signboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting signboard where characters or graphics uniformly emit light with high luminance. <P>SOLUTION: Display bodies 2 are formed of a transparent resin for transmitting the light in a diffuse reflection state. The light from a light source for irradiating the display bodies 2 with the light from a side part are reflected toward the display bodies 2 by a reflection body 17 which is arranged under the display bodies 2 and tilted to come closer to the display bodies 2 with the increase of the distance from the light source. Thus, the light is emitted from the display bodies 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting signboard in which characters, figures, etc. emit light.

[0002]

2. Description of the Related Art As a light-emitting signboard conventionally composed of a character or a figure that emits light, there has been disclosed in Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Laid-Open No. 1-92396, a light emitting diode is known. That is, a light emitting diode is arranged in a frame having a shape such as a character or a figure to emit light, facing the reflection surface opposite to the light emitting surface, and the light emitting surface is irradiated with light reflected by the light reflecting surface of the light emitting diode. The structure is such that characters or figures are made to emit light.

The luminous signboard has a higher degree of freedom in the shape of characters or figures than a luminous signboard made of a neon tube, and a luminous signboard having a wider range of characters or figures can be manufactured. Compared to luminous signboards,
It has an advantage that the life of the light emitting sign is long.

Further, since the light emitting diode is an element that emits light in the form of a beam, in the above-mentioned light emitting sign, the light emitting diode is arranged so as to face the side opposite to the light emitting surface so as to prevent uneven brightness on the light emitting surface. The light emitting surface is made to emit light by reflected light. However, since the spot light from the light emitting diode is located on the surface opposite to the light emitting surface, there are disadvantages that the brightness unevenness remains and the shadow of the light emitting diode may be reflected.

[0005]

A light-emitting signboard of the present invention for solving the above-mentioned problems is a display body 2 formed of a translucent material that transmits light in a diffused reflection state, and light is reflected to the display body 2 side. A reflector 17 disposed below the display body 2 so that
The reflector 17 is composed of a light source that irradiates light from the side, and the reflector 17 is tilted so as to come closer to the display body 2 side as the distance from the light source increases. The first feature is that the reflector 17 reflects the light emitted from the light source body from the side toward the display body 2 side so that the display body 2 emits light.

Secondly, the light source bodies are arranged on opposite sides of the reflecting body 17, and the reflecting surface 17a of the reflecting body 17 is formed in a mountain shape.

A third feature is that the light source body is composed of a plurality of light emitting diodes 7 mounted in the longitudinal direction.

Fourthly, the light emitting diode 7 is characterized by being composed of red, blue and green light emitting diodes.

Fifthly, the frame body 3 for arranging the display body 2 on the upper surface side
Is provided, and the light source body is housed on the opposite side surface sides of the frame body 3.

A sixth feature is that a cover 12 is provided between the display body 2 and the light source body side to cover the upper surface side of the frame body 3 in a state where the display body 2 can be visually recognized.

Seventhly, the light source body is arranged below the side surface 2a of the display body 2, and the reflector 17 is provided on the bottom side of the display body 2 so as to follow the shape of the display body 2.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 are a plan view, an AA cross-sectional view and a cross-sectional perspective view of a main body 1 of a light emitting signboard according to the present invention, and a display body formed in a character or a figure shape. 2 is arranged in the central portion of the upper surface of the frame body 3 and has a structure in which the display body 2 is made to emit light and the characters of the signboard are made to emit light by making the inside of the frame body 3 emit light as described later. .

The frame 3 has a frame-shaped frame 4 having a rectangular outer shape in plan view, and one of the opposing side surfaces 4a, 4a.
A light-emission unit accommodating portion 1 having a structure in which a substantially E-shaped frame 6 is attached inside b and accommodating a light-emission unit 8 having a light-emitting diode 7 between recesses on the bottom side of both frames
5, the space between the recesses on the upper surface side serves as a support portion 5 that supports the display body 2.

On the other hand, the light emitting portion 8 has a structure in which a light emitting diode 7 is attached to a base 9 which is inserted into a concave portion of the frame 6 in the light emitting portion accommodating portion 15. The base 9 extends in the longitudinal direction of the frame 6. A plurality of light emitting diodes 7 are attached in the longitudinal direction of the base 9 in the shape of a long plate. The light emitting section 8 is attached to both frames 6 so that the light emitting diodes 7 face the inside of the frame body 3, whereby the light emitting diodes 7 of both light emitting sections 8 face each other, and the frame body is turned on by the lighting of the light emitting diodes 7. The inside of 3 is illuminated.

It should be noted that the light emitting diodes 7 of each light emitting section 8 have three types of light emitting diodes of blue, red and green arranged in order, and a predetermined control device controls the lighting of the light emitting diodes 7 of each color. You may comprise. In this case, the emission color in the frame 3 can be easily changed,
For example, by turning on only the red light emitting diode, the inside of the frame 3 can be turned red, and by turning on the same number of red light emitting diodes and blue light emitting diodes, the inside of the frame 3 can be turned purple, respectively. It also becomes easy to blink.

On the other hand, the display 2 is attached to a transparent support plate 11 made of resin or the like, and the upper surface (front surface) side is covered and protected by a transparent cover 13 made of resin or the like. At this time, an opaque mask plate 12 whose upper surface is colored is also adhered on the support plate 11, and the mask plate 12 is die-cut into the shape of the display body 2 so that the display body 2 is covered with the mask plate 12. It protrudes from the die-cut portion to the upper surface side.

The bottom surface of the mask plate 12 is a reflecting surface. As described above, in the light-emitting signboard of the present embodiment, from the upper surface side (outside of the display body 2), the mask plate 12 makes the light-emitting unit housing portion 15 side located on the bottom surface side of the mask plate 12 invisible, and only the display body 2 is displayed. Be visible.

At this time, the cover 13 is slidably inserted into a slit 10a formed in a protrusion portion (upper protrusion) 6a on the upper surface side of the frame 6 and is detachably attached to the frame body 3 side. The support plate 11 is also slidably inserted into the slit 10b formed in the protruding portion (central protrusion) 6b at the center of the frame 6 like the cover 13 and is detachably attached to the frame 3 side to support it. It is provided in the section 5.

As a result, the display unit 14 in which the display body 2, the support plate 11 and the mask plate 12 are integrally formed is inserted into and removed from the support plate 11 with respect to the slit 10b of the central projection 6b to open the frame 6 side. It can be easily attached to and detached from the frame body 3 side (support portion 5) via. The display body 2 is made of acrylic resin mixed with a light diffusing material, that is, the display body 2 has a light diffusing property of transmitting light in a diffused reflection state.

Then, the light emitting portion accommodating portion 15 in the frame body 3
The side becomes a light emitting chamber 16 surrounded by the frame 6 and the support plate 11, and light emitted in the light emitting chamber 16 is transmitted to the upper surface side through the display body 2 in a diffused reflection state. At this time, since the display unit 14 shields the portion excluding the display body 2 by the mask plate 13, when the display unit 14 is attached to the frame body 3, the light in the light emitting chamber 16 is substantially transmitted only from the display body 2. Light is leaked and light leaks from other than the display body 2 are extremely small.

On the other hand, in the light emitting chamber 16, the bottom plate 18
However, like the support plate 11 and the cover 13, the slit 10c formed in the protruding portion 6c on the bottom surface side of the frame 6
It is slidably inserted in and is detachably attached to the frame body 3 side. Then, on the bottom plate 18, the upper surface (display body 2 side) is located so as to be located between the light emitting parts 8 and the reflecting surface 1 is provided.
A plate-shaped reflector 17 forming 7a is arranged, and the reflector 17 is configured to reflect the light of the light emitting portion 8 toward the display body 2 on the upper surface side.

At this time, the reflector 17 has a mountain shape in which the center between both light emitting portions 8 projects toward the upper surface side. That is, the reflector 17 approaches the display body 2 side as the distance from the light emitting unit 8 increases, and the distance between the both light emitting units 8 that is the farthest distance from any of the light emitting units 8 becomes equal. Is inclined so that the center thereof is closest to the support 11.

As a result, when the light emitting diode 7 of the light emitting portion 8 is turned on, the light of the light emitting diode 7 is reflected by the reflector 17 toward the display body 2 side and is radiated to the display body 2 side, and this reflected light is emitted from the light emitting portion. With increasing distance from 7,
Since the light is reflected at a position closer to the display body 2, the intensity of the reflected light reaches the display body 2 with a substantially uniform intensity.

The bottom plate 18 has a light-shielding property to the outside (bottom face side) and a reflectivity to the inside, so that the light in the light emitting chamber 16 is located on the bottom plate 18 side. In addition to preventing leakage from the bottom surface side of the main body 1, the light emitting chamber 1
In the inside of 6, the light to the bottom plate 17 side is reflected to the side of the display body 2 to improve the brightness of the light in the light emitting chamber 16.

Since the display body 2 itself has a light diffusing property, the display body 2 which receives light of substantially uniform brightness emits light almost uniformly, and characters and the like emit light evenly. At this time, since the light emitting diode 7 emits light on the side of the display plate 2, the amount of direct light reaching the display body 2 is reduced, and not only the adverse effect on the uniform brightness is prevented but also the image of the light emitting diode 7 is reflected. The shadow of the light emitting diode 7 in the light emitting state of the display body 2 can be more effectively prevented.

Further, since the light emitting portions 8 are arranged on both sides of the reflector 17 which face each other and the reflecting surface 17a of the reflector 17 is formed in a mountain shape, uniform light to the display body 2 side can be obtained. It is possible to irradiate with high brightness, and the display body 2 emits light uniformly and with high brightness. Since the light emitting section 8 is composed of the light emitting diode 7, the life of the light emitting section 8 itself is long and the durability of the light emitting signboard of the present invention is high.

Further, by adjusting and setting the color of the light in the light emitting chamber 16 as described above, the light emitting color of the display body 2 can be easily changed, and the color of the signboard can be easily changed. Further, by blinking the light emitting diode 7, the character or figure on the display body 2 can be changed to a single color or a plurality of colors to blink. Furthermore, by coloring the display body 2, it is possible to give variations to the emission color of the signboard.

That is, by controlling the lighting of the light emitting diode 7 and the color of the display body 2 itself, it is possible to easily control the light emitting color of characters and figures on the light emitting signboard. Since the display unit 14 can be easily attached and detached as described above, by preparing a plurality of display units 14 on which the display bodies 2 having different character or graphic shapes or colors are arranged, a light emitting signboard having different characters or figures or colors can be obtained. Can be manufactured easily and at low cost.

A reflector unit can also be formed by integrally forming the reflector plate 17 and the bottom plate 18. In this case, the reflector unit is moved from the open end side of the frame 6 to the frame 6 side. By slidingly inserting, the reflector 17 (reflector unit) can be easily attached to and detached from the frame body 3 side. Further, the light emitting unit 8 and the reflector 1
7 and the bottom plate 17 can be integrated to form a light emitting unit in which the light emitting unit 8 and the reflector 17 are integrated, and like the reflector unit, the frame 3 of the light emitting unit is formed.
It can be easily attached to and detached from.

FIG. 4 is a perspective view of the mask plate 12,
Acrylic resin mixed with a light diffusing material, which is the same material as the display body 2, is poured into the die-cut portion 12a that projects the display body 2 to the upper surface side, and the mask plate 12 and the mask plate 12 are integrally displayed. The body 2 may be formed. Thereby, it is not necessary to separately provide the display body 2, and the structure can be further simplified.

On the other hand, as shown in FIG. 5, the light emitting portion 8 is provided below the side surface 2S of the display body 2 without providing the frame body 3.
The display body 2 may be attached along the outer shape of the display body 2 and the mountain-shaped reflector 17 similar to the above may be arranged on the lower surface of the display body 2. In this case as well, since the display body 2 emits light with uniform brightness in the same manner as described above, it becomes a self-luminous character or graphic signboard character (self-luminous signboard character), and by using one or more of this self-luminous signboard character, The luminous signboard can be easily constructed.

In particular, the self-luminous signboard character can be replaced with a signboard character produced by bending a neon tube into a character or a figure shape. However, it is relatively difficult to manufacture a character or the like that uses a lot of curvature.

Further, as shown in FIG. 6, it is possible to arrange the light emitting portions 8 in three rows or more (three rows in FIG. 6) in parallel, and in this case also, the reflector 17 (reflection surface 17a) emits each light. By tilting the display unit 2 closer to the display unit 2 side as the distance from the light emitting unit 8 increases with respect to the unit 8, the display unit 2 can emit light uniformly and with high brightness in the same manner as above. It is possible to easily manufacture a comparatively large light emitting signboard or self-luminous signboard character whose dimension X in the direction is, for example, 2 to 3 m or more.

The display body 2 of the embodiment shown above is used.
Is formed of an acrylic resin mixed with a light diffusing material, but any material such as a polyester resin mixed with a light diffusing material that transmits light in a diffusely reflected state may be used.

[0035]

According to the structure of the present invention configured as described above, the light emitted from the light source body from the side of the reflector is brought closer to the display body side as the distance from the light source body increases. The reflecting plate inclined so as to reflect upward, and the display body transmits the direct light from the light source body and the reflected light by the reflector in a diffused reflection state, so that the display body emits light and functions as a signboard. .

At this time, in particular, the reflected light is reflected at a position close to the display body as the distance from the light source body increases, so that the intensity of the reflected light reaching the display body is leveled, and the light source body emits light from the side. Since the amount of direct light that reaches the display body is small, the brightness of the light that reaches the display body side is uniformized, the display body emits light uniformly, and the shadow of the light source body is less likely to occur.

By arranging the light source bodies on opposite sides of the reflector and forming the reflection surface of the reflector in a mountain shape,
The display can be made to emit light uniformly and brighter. Further, by configuring the light source body with a plurality of light emitting diodes provided in the longitudinal direction (extension direction to the side where the light source is arranged), it is possible to improve the brightness and make the display body emit light brighter, and the life of the light source body. Can be extended,
The power consumption can be suppressed, and the light-emitting signboard can be manufactured at low cost. Further, by using the ternary color light emitting diode, the light source body can emit light in various colors, and it is easy to change the emission color.

On the other hand, by providing a frame body for arranging the display body on the upper surface side and accommodating the light source body on the opposite side surface sides of the frame body, the light emitting signboard can be unitized, and the display body can be formed. By changing the shape of, various characters and figures can be displayed easily. Especially by providing a cover between the light source side and the display side,
Since only the display is visible from the front side of the frame, the shape of the display that emits light can be clarified.

The light source body is arranged below the side surface of the display body,
The reflector may be provided on the bottom side of the display body in a shape conforming to the shape of the display body, and in this case, it can be used alone as a self-luminous display body.

[Brief description of drawings]

FIG. 1 is a plan view of a main body of a light emitting signboard.

FIG. 2 is a sectional view taken along the line AA of the main body of the light emitting signboard.

FIG. 3 is a cross-sectional perspective view of the main body of the light emitting signboard.

FIG. 4 is a perspective view of a mask plate.

FIG. 5 is a sectional perspective view of a main body of a self-luminous light emitting signboard.

FIG. 6 is a schematic side sectional view of a light emitting signboard having a large width.

[Explanation of symbols]

2 display 3 frame 7 Light emitting diode 12 Mask plate (cover) 17 Reflector 17a reflective surface

Claims (7)

[Claims] 1. A display body (2) made of a translucent material which transmits light in a diffused reflection state, and a reflection arranged below the display body (2) so as to reflect the light to the display body (2) side. Body (1
7) and a light source body that irradiates the reflector (17) with light from the side, and the reflecting surface (17a) of the reflector (17) increases with increasing distance from the light source body. The display body (2) is inclined so as to be close to the display body (2) side, and the light from the light source body emitted from the side is reflected by the reflector body (17) toward the display body (2) side. A luminous signboard that makes the light emitted. 2. The light emitting signboard according to claim 1, wherein the light source bodies are arranged on opposite sides of the reflector (17), and the reflecting surface (17a) of the reflector (17) is formed in a mountain shape. 3. The light-emitting signboard according to claim 1 or 2, wherein the light-source body comprises a light-emitting diode (7) provided by mounting a plurality of light source bodies in the longitudinal direction. 4. The light-emitting signboard according to claim 3, wherein the light-emitting diode (7) comprises red, blue and green light-emitting diodes. 5. The frame body (3) for disposing the display body (2) on the upper surface side is provided, and the light source body is housed on the opposite side surface sides of the frame body (3). Luminous signboard. 6. A cover (12) provided between the display body (2) and the light source body side to cover the upper surface side of the frame body (3) in a state where the display body (2) can be visually recognized. Luminous signboard. 7. The light source body is arranged below the side surface (2a) of the display body (2), and the reflector (17) is formed along the shape of the display body (2) on the bottom side of the display body (2). Claim 1 provided
Or 2 or 3 or 4 luminous signboard.