JP2010097917A - Illuminating-display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating-display device which exhibits substantially no difference in the brightness over a wide area or in the length direction, is used for various purpose, consumes low power, lasts over a long period, until replacement due to its wearing out, and is easy at maintenance, such as, cleaning. <P>SOLUTION: The display device includes a light-emitting illuminating member that includes a strip substrate and a plurality of light-emitting diodes, arranged thereon at a proper interval and disposed at the center of a translucent cylindrical cover or on the cover, at a distance from the cover, and a light-transmitting sheet with an advertisement or a bulletin printed thereon is attached closely to the inside of the cover, as is required. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Detailed Description of the Invention

The present invention relates to a one-dimensional line illumination / one-dimensional display device and a planar illumination / planar display device using LEDs.

Conventionally, incandescent lamps and fluorescent lamps are generally used as illumination light sources. For this reason, the replacement of the incandescent lamp due to the decrease in brightness caused by the filament breakage or the aging of the fluorescent lamp over time has been unavoidable. Furthermore, there is a limit in reducing the power consumption cost. In addition, the flat illumination device includes an illumination device in which a light transmissive sheet like a glass cloth is stretched around a frame and a light source is disposed inside.

As for the translucent sheet such as the glass cloth in the panel-like lighting body in which such a rectangular frame is assembled and the translucent sheet is stretched there and the light source is provided therein, it is inexpensive in terms of manufacturing cost. Is not supplied, the translucent sheet portion is expensive, and the lighting device is expensive.

Alternatively, as a two-dimensional planar illumination device using LEDs, as in JP-A-2003-59326, a bar-shaped light guide is arranged close to the side end face of a transparent substrate made of a light-transmitting material, and a plurality of pieces corresponding to the end face Conventionally, a planar illumination device characterized by having a point light source and connecting the point light source and the end face of the light guide with an optical fiber can be seen in the past. Therefore, a certain degree of accuracy is required, and it can be said that it is poor in applicability for various uses even if it is useful as a specific use.
JP 2003-59326 A

By using a light-emitting unit with a plurality of LEDs with low power consumption on a strip substrate as a light source, it is easy to design various lighting and display devices. Not only can the power consumption be reduced compared to fluorescent lamps, but the amount of heat generated is also kept very low.

By adopting a structure in which the cover of the light source is formed in a cylindrical shape or a rectangular tube shape, and a band-shaped light emitting unit is disposed inside, preferably in the center, a long cylindrical lighting device is configured. The material of the cylindrical cover is made of translucent acrylic resin, or it has a structure that can obtain a light scattering effect by rolling and sticking paper with a certain degree of waist inside the transparent acrylic resin tube

Moreover, since the said light-emitting unit has a considerable luminance, it is preferable to provide a translucent cover as in the case of general illumination. However, a translucent synthetic resin conventionally used for a light-transmitting flat portion of a planar illumination device. If only the sheet material is stretched, a partial light / dark difference is caused by a distributed distance difference from a plurality of light sources to the sheet.
Therefore, planar illumination is made possible by using a plurality of the long cylindrical illumination devices that scatter light and provide uniform brightness. Moreover, it was set as the structure which provides a translucent board in the one side or both surfaces as needed, and makes it a planar illuminating device.

As a light source, a plurality of LEDs are arranged on a strip-like substrate at appropriate intervals to reduce power consumption as a light emitter unit, and LEDs that are much more durable than incandescent and fluorescent lamps are arranged. By adopting a light-emitting unit consisting of a provided substrate, the maintenance of the illuminating body / display body is facilitated.

The one-dimensional cylindrical tubular illuminating device in which the band-like light emitting unit is disposed inside the cylindrical cover has a shape similar to a fluorescent tube in appearance, but there is a great difference between the two. The cylindrical cover has not only a simple illumination function, but also a pattern illumination device can be formed by, for example, rolling paper with a pattern on its inner side and bringing it into close contact. Alternatively, the function as an information display device such as an advertisement can be exhibited.
The shape of the cover portion in this apparatus may be a prismatic shape or a polygonal shape instead of a cylindrical shape.

By combining the surface illumination device or the cylindrical illumination body according to the situation so as to be connected or provided side by side, and by the light scattering effect by the translucent cover portion arranged at a certain distance from the light source, an extremely wide area or long It is possible to provide an illuminator that has almost no difference in brightness over a portion.

By combining a long cylindrical illuminator as one-dimensional illumination and a planar illuminator as two-dimensional illumination, it is possible to achieve design easiness as a display device or backlight information display of various shapes and structures.
In particular, in advertisements or information display boards that require long-time illumination, the use of LEDs can reduce power consumption, and the economic effect and CO2 emission reduction effect are significant.

From the maintenance aspect, the use of LEDs with good durability over time eliminates the need for replacement due to product wear over a long period of time, and the light-emitting part is grouped as a strip-shaped light-emitting unit. Is very easy.

Furthermore, since a lighting function with sufficient brightness can be provided with only a dry battery, it can be freely moved, arranged, and installed.
Since the illumination light travels uniformly without intensity, it becomes a soft light and a gentle illumination that does not cause eyestrain.

A certain level of waisted paper is rolled inside and attached to a transparent cylindrical body such as an acrylic resin tube to replace the semitransparent cylindrical cover, and the lighting effect is the same as that of a semitransparent cover due to scattering of light passing through the paper. Can also be obtained. With such a configuration, both paper and a transparent acrylic resin tube are distributed at a low price on the market, so that the cost of the entire lighting device can be reduced.

A planar lighting device can be configured by arranging a plurality of long cylindrical light emitters in parallel with each other at an interval or at intervals, and by connecting them in a bowl shape using a wire rod such as a piano wire. Not only a flat lighting device but also a lighting device having a wavy shape can be formed.

Such use as planar lighting is suitable for wall lighting and wall advertising, and when a double-sided lighting panel unit is configured, it can also be used as a fence or partition with lighting effects in places where light is desired, Especially in places where the power line cannot be drawn or in the environment where it is preferable that there is no power line, the device of the present invention employs LED lighting that functions at low power, thus providing sufficient brightness even for batteries and dry cells. Have the advantage you can.

FIG. 1 shows a strip-like light emitting unit 1 which is a basic light emitter of the present invention in which a plurality of LEDs 3 are arranged on a substrate 2 at appropriate intervals. As shown in the production process diagram of FIG. 2, the strip-shaped light-emitting unit 1 is attached to the upper surface of a strip-shaped light-emitting unit support 4 having the shape shown in the perspective view from the end face side of FIG. 5 is created. The light emitting unit elongate body 5 can be used as a versatile LED lighting device by being installed in a cylindrical cover of various shapes.

When used as the columnar illumination device 6 (FIG. 4), the cover member 7 is formed in a cylindrical shape as shown in FIG.
The columnar illumination device 6 is formed by bending a pair of opposite side portions of the cover member 7 to form a rising ridge portion 8 and making the cover member 7 cylindrical so that the rising ridge portions 8 at both ends are inside. It is set as the structure which rounded and slid-inserted the joining rising edge part 8 inside the said light emission unit elongate body 5. FIG.

The contact surface of the joint rising edge portion 8 may be bonded by an appropriate means, but since it is inserted in the light emitting unit long body 5 so as to be held in the length direction, it becomes a cylindrical shape. The cover member 7 tries to be restored to the original flat plate shape due to its inherent elasticity, but it is caught so as to be held by the lower part of the inner surface of the side wall of the belt-like light emitting unit support 4 so as to keep the cylindrical shape. There is no need to take any measures.

FIG. 6 shows a manufacturing process diagram of the prismatic illumination device 9. The folding lines 10 are formed at equal intervals on the cover member 7 to create a square column having a square cross section, and the combination rising edge portion 8 and the light emitting unit elongate body 5 are combined in the same manner as the cylindrical lighting device 6 described above. And the prismatic illuminating device 9 which attached the light emission unit elongate body 5 inside was comprised.

It can apply to the illuminating device for obtaining a big light quantity using the same material as the said prismatic illuminating device 9. FIG. Without connecting the rising edge 8 of the cover member 7 formed in a prismatic shape and the light emitting unit elongated body 5 to each other, the rising edge 8 is joined with an adhesive or the like, and the cover member 7 is used as a cover member. 7 is used as a mounting base for the belt-like light-emitting unit 1, so that the high-intensity illumination light-emitting body 11 shown in FIG.
By attaching this to the center of the polygonal cover member 12 via a support plate 13 as shown in FIG.

A planar illumination device 15 was created by arranging a plurality of the long cylindrical illumination devices 7 created in Example 1 in an adjacent set arrangement.
This flat lighting device 15 can be used indoors for a wide range of applications such as ceilings, wall surfaces, partitions, partitions, etc., and can be used outdoors as a fence-type lighting device, a general lighting panel unit, or as an outer wall lighting device. be able to.

Furthermore, it is possible to form not only a flat lighting device but also a lighting device with a wavy shape by hanging it in a bowl shape by using a wire such as a piano wire.

The lighting device of the present invention can be used as an advertisement display device or a guidance display device by bringing a translucent sheet printed with a pattern or characters inside a cylindrical cover member or a semi-transparent plate-like body. In addition, since a sufficient amount of light can be obtained by using a battery (dry cell) with a low-power-consumption LED light-emitting source, it is possible to provide a lighting device / display device with wide applicability regardless of location.

If necessary, a circular cap 17 or a square cap 18 can be attached to the end of the cylindrical lighting device of the present invention as shown in FIG. By attaching the cap, it is possible to prevent a decrease in illuminance due to adhesion of dust, and a waterproof structure can be used outdoors.

The strip | belt-shaped light emission unit which is the basic light-emitting body of this invention is shown. It is a process figure which creates the light emission unit elongate body from the strip | belt-shaped light emission unit in this invention. FIG. 4 is an end view of the strip light emitting unit of the present invention. 1 shows a columnar illumination device according to an embodiment of the present invention. It is a formation process figure from a plane cover member which constitutes the cylindrical lighting device of the present invention to a cylindrical shape. It is a prismatic illumination device of the present invention. It is a figure of the large light quantity light emission part which applied the light emission unit of this invention. It is a figure of the high light quantity illuminating device which applied the light emission unit of this invention. It is a perspective view of the planar illuminating device of this invention. It is a figure of the circular cap and square cap of the cylindrical illuminating device of this invention.

Explanation of symbols

1 Band-shaped light emitting unit 2 Substrate 3 LED
4 Belt-shaped light emitting unit support 5 Light emitting unit elongate body 6 Cylindrical illumination device 7 Cover member 8 Standing ridge portion 9 Prismatic columnar illumination device 10 Bending line 11 Large light illumination light emitter 12 Polygonal cover member 13 Support plate 14 Large light amount Illumination device 16 Planar illumination device 17 Circular cap 18 Square cap

Claims (4)

A cylindrical lighting device characterized in that a light emitting body in which a plurality of LEDs are arranged on a belt-like substrate at an appropriate interval is arranged inside or in the center of a semi-transparent cylindrical cover.   A planar illuminating device comprising a plurality of cylindrical illuminating devices connected to each other in a bowl-like shape, and enabling a two-dimensional planar shape or a wave shape as a whole.   A two-dimensional planar illumination device comprising a plurality of the cylindrical illumination devices according to claim 1 arranged adjacent to each other or at an appropriate interval, and a semitransparent plate-like body attached to one or both sides thereof. 4. An illumination / display device according to claim 1, wherein a translucent sheet printed with a pattern or characters is adhered to the inside of a cylindrical cover or a translucent plate-like body.

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