JP3203324U - Flexible light emitting device - Google Patents

Abstract

A flexible light-emitting device and a display which are easy to install on a structure attracted by a magnet. An LED light emitting device includes a flexible substrate, LED light emitting elements arranged in a matrix, and a magnet disposed on the back surface. [Effect] Since the LED light-emitting device 1 is configured by using the flexible substrate 3, the light-emitting device 1 can be installed in accordance with the shape of the structure even when a structure having a curved surface is used as a support. Therefore, it can be installed without preparing a support for supporting the entire display. Moreover, since the magnet 5 is disposed on the back surface of the LED light emitting device 1, the light emitting device can be directly installed on the structure to which the magnet 5 is attracted, and the workability is remarkably improved. [Selection] Figure 1

Description

  The present invention relates to a light-emitting device used for advertisement, decoration, and illumination, and more particularly to a flexible light-emitting device used for an advertisement board or a signboard.

  2. Description of the Related Art Conventionally, LED elements have been widely used as light emitting sources for decorating illuminations and the like, and as light emitting advertising boards and signboards for displaying characters, decorative figures and the like. Particularly in recent years, LED elements with high brightness have been provided, and images having vivid colors or full-color images can be displayed.

However, many LED light emitting displays so far use a tough printed circuit board. For this reason, when the structure supporting the display is not flat, a support for supporting the LED light-emitting display object is further required, and a wasteful space is generated between the LED light-emitting display object and the structure. Inferiority etc. was regarded as a problem.
In order to solve the above problems, a flexible LED light emitting device using a flexible substrate has been proposed even in a light emitting device using an LED element (Patent Document 1).
However, even a flexible LED light-emitting device such as that disclosed in Patent Document 1 requires fixing work by a professional engineer for mounting on a wall surface or the like, and installation is not easy.

JP2009-042260

  In view of the above problems, the present invention provides an LED light emitting device that can be easily installed on a structure attracted by a magnet.

  As a result of repeated studies to achieve the above object, the present inventors have arranged a magnet on the back surface of an LED light emitting device using a flexible substrate such as rubber or resin, and adsorbed it to a magnet such as iron. An LED light-emitting device that can be easily installed on a metal structure is devised.

That is, the present invention
(1) A flexible substrate that installs LED elements and supplies power;
A plurality of LED light emitting elements arranged in a matrix on the substrate surface;
A light emitting device comprising:
A light emitting device comprising a magnet disposed on a surface opposite to a light emitting display surface of the light emitting device;
(2) The light emitting device according to (1), wherein all or part of the end surface of the light emitting device has a tapered shape that tapers from the light emitting display surface toward the back surface,
(3) The taper angle of the taper shape is 45 ° to 85 °,
(1), the light-emitting device according to (2), (4) a display that displays information as a unit by combining a plurality of light-emitting devices according to (1) to (3),
Is to provide.
Here, the taper angle means an angle of the taper surface with respect to the light emission flat surface.

  The present invention has the following effects.

  In the first device, since the light emitting device is configured by using the flexible member, it is possible to install the light emitting device according to the shape of the structure even if the structure having a curved surface is used as the support. Become.

  Moreover, since the magnet is disposed on the back surface of the LED light-emitting device, the light-emitting device can be directly installed on the structure attracted by the magnet, and the workability is remarkably improved.

  Further, a plurality of light emitting devices can be arranged side by side to display one display object as a whole. This makes it possible to provide powerful images that could not be expressed with a single light emitting device. Further, since the light emitting device is installed with a magnet, it is easy to remove the light emitting device, and it becomes easy to install and reconfigure a plurality of light emitting devices in accordance with the display object.

  However, when a plurality of light emitting devices are combined and installed on a curved surface (especially when installed on a support having a convex shape), a gap is easily generated between the individual light emitting devices, and this gap is a black line when displaying an image. It often appears and harms the visual and design quality of images.

  In the second device, since the end surface of the light emitting device has a tapered shape that tapers from the light emitting display surface toward the back surface, even when the light emitting device is installed on a support having a convex shape, there is no gap between the light emitting devices. Hard to occur. For this reason, even a display having a plurality of light emitting devices can provide a display object that satisfies the requirements for the visibility and design of the display image.

  Since the taper angle is limited to an appropriate angle in the third device, not only can a display image with high design be provided, but also a smooth display surface that follows the shape of the support can be made.

  In the fourth device, a plurality of light emitting devices are combined to display information as an integrated display. By using a combination of light emitting devices, as described above, it is possible to provide powerful images that could not be expressed with a single light emitting device. Further, in the present invention, since the light emitting device is installed by a magnet, it is easy to remove the light emitting device, and it is possible to reconfigure displays of various sizes and shapes by changing the position. Therefore, it is possible to design a display according to the content to be displayed, and the degree of freedom of expression is greatly increased.

  Embodiments of the present invention will be described below with reference to the drawings. The following examples show preferred embodiments of the present invention, and the technical scope of the invention is not limited to the following examples.

  As shown in FIG. 1, the light-emitting device of the present invention includes an LED element, a flexible substrate having wiring for supplying power, and a magnet for fixing and installing the light-emitting device disposed on the back side of the light-emitting surface. Have In addition, you may provide the case which accommodates wiring and components.

[LED element]
A known LED element can be used as the LED light emitting element. There is no particular limitation on the number of LED elements. In addition, it is possible to provide a full-color display object by mounting one or more sets of light emitting elements including three colors of red (R), green (G), and blue (B).

[Flexible substrate]
As a material of the flexible substrate used in the present invention, a flexible material such as rubber or a synthetic resin material can be used. For example, natural rubber, styrene / butadiene rubber, butadiene rubber, isoprene rubber, acrylonitrile / butadiene rubber, butadiene / acrylonitrile / acrylate terpolymer, butadiene / acrylonitrile / isoprene terpolymer, silicone rubber, fluorine rubber , Ethylene / propylene rubber (EPM), ethylene / propylene / diene rubber (EPDM), styrene elastomers, olefin elastomers, vinyl chloride elastomers, urethane elastomers, amide elastomers, polyurethanes, etc. can be used. It is not limited to. Further, these rubbers or synthetic resins may be used alone or in combination of two or more. Furthermore, you may laminate | stack two or more types.

[magnet]
The material, magnetic force, shape, number, etc. of the magnet used in the present invention are not particularly limited as long as it has a magnetic force for installing and holding the light emitting device, and may be a permanent magnet or an electromagnet. In particular, a permanent magnet is preferable from the viewpoint of maintenance-free. For example, a magnetite, an alnico magnet, a ferrite magnet, a rare earth magnet (for example, a neodymium magnet, a samarium cobalt magnet, etc.), etc. are mentioned, and a bond magnet may be used.

[Tapered surface]
A light-emitting device having a tapered surface is shown in FIG. Here, the taper angle (taper angle θ 7 in FIG. 2) refers to the angle of the taper surface with respect to the light emission flat surface.
When a plurality of light emitting devices are combined and installed on a curved surface, it becomes easy to take the form as shown in FIGS. 3B and 3C if there is no tapered surface. In particular, when a light emitting device is attached to a support having a convex surface, a gap is easily generated between the light emitting devices. When the light emitting device is installed along the convex surface, the light emitting surface side member in the light emitting device cannot be deformed following the shape on the support side, and a gap is generated between the light emitting devices (see FIG. 3 (b)). In this case, the generated gap appears as a black line in the light emitting display, which impairs the visibility and design of the display image. This appears as a larger gap as the curvature of the support increases (FIG. 3C).
However, by providing the tapered surface, the display can be configured by installing the light emitting devices without gaps as shown in FIG. 4, so that the visibility and design can be greatly improved.
The taper angle θ of the taper surface is preferably 45 ° or more and 85 ° or less.
When the taper angle θ is 45 ° or less, depending on the curvature of the support (when the curvature increases), there is a possibility that a smooth light emission curved surface along the support curved surface cannot be formed between the light emitting devices. .
Further, when the taper angle θ is 85 ° or more, depending on the curvature of the support (when the curvature increases), the effect of providing the taper cannot be sufficiently obtained, and a gap is generated between the light emitting devices. This may impair the visibility of the displayed image.

[Combination of luminous display]
Although there is no restriction | limiting in the magnitude | size and shape of a light-emitting device, It is desirable that it is a rectangle whose one side is about 5-30 cm. With such a size, a huge display can be configured by combining light emitting devices, and a display can be configured corresponding to a complicated curved surface.
Further, the plurality of light emitting devices constituting the display are not necessarily close to each other. Even if the light emitting devices are arranged apart from each other, it is possible to display an image with enhanced visual effect by displaying an integral display object in conjunction with each other.

Schematic diagram of LED light emitting device using flexible substrate [(a) Top view, (b) Side view, (c) Back view] Side view of light-emitting device having end face tapered shape Schematic diagram when a light emitting device without a tapered surface is installed on a curved surface (convex surface) Schematic diagram when installing light emitting device with tapered surface [(a) When installed on a plane, (b) When installed on a convex surface]

DESCRIPTION OF SYMBOLS 1 LED light-emitting device 2 LED element 3 Flexible board 4 Case 5 Magnet 6 Tapered surface 7 Taper angle (theta)
8 Gap between light emitting devices

Claims (4)

A flexible substrate for installing LED elements and supplying power;
A plurality of LED elements arranged in a matrix on the substrate surface;
A light emitting device comprising:
Arranging a magnet on the opposite surface of the light emitting display surface of the light emitting device;
A light-emitting device, All or part of the end face of the light emitting device has a tapered shape that tapers from the light emitting display face toward the back face,
The light emitting device according to claim 1. The taper angle θ of the tapered shape is 45 ° or more and 85 ° or less,
The light emitting device according to claim 1, wherein A display capable of displaying information as a unit by combining a plurality of light emitting devices according to claim 1.