JP2000098938A - Light emitting display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable light-emitting a background color in a background of a display of characters, pictures and the like by providing a light emitting characteristic in which light made incident on a optical fiber is made to exit toward light emitting direction of a light emitting body. SOLUTION: An optical fiber 4 is a resinous material such as acrylic resin having light transmissivity and is formed cylindrically, and arranged so as to be held between adjacent columns of light emitting diodes 3. In this optical fiber 4, reflectivity is set so that one part of transmitting light is made to exit from a peripheral surface. Further, a reflection material 5 is provided at a peripheral surface of a side opposing to a substrate 2, the optical fiber 4 is set so that light reflected here can be made to exit from a peripheral surface of an inverse side, that is, an attached side of the light emitting diodes 3. These optical fibers 4 are arranged so that the base end part is converged and a base end plane is opposed to a light source (light incident body) 6. A bundle of the optical fibers 4 converged to be opposed to the light source 6 can light- emit with the same color and can make it a background color.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a light-emitting display device used for advertisement, decoration, or display.

[0002]

2. Description of the Related Art Conventionally, display devices for advertisement, decoration, etc. include a light bulb and a light emitting element (light emitting diode, LE
In some cases, a luminous body such as D) is attached, and in this case, a plurality of luminous bodies are used to appropriately display desired characters, designs, and the like. And in this one,
The display device is appropriately displayed as described above under the background, but the background is, at most, the color applied to the base material itself constituting the display device, and the base material is made of a light-transmitting material such as plastic. It is formed of a material having a sharpness, and illuminates a fluorescent lamp or the like as a light source (backlight) at night or the like.

[0003]

However, some of the above-mentioned prior arts have a poor visual effect because they can only change the color of the background color and cannot change the color. Therefore, as shown in Japanese Patent Application Laid-Open No. 9-6260, an optical path of another color as a background color is provided so as to intersect the optical path of the light emitting diode, and the optical path of the other color is changed to the background color by lighting or blinking. Is proposed. However, this is a change of only one color as a background color, has little changeability, and cannot respond to a request for further changeability, and there is a problem to be solved by the present invention.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been created with the object of solving these problems. What is claimed is: 1. A light-emitting display device configured to be capable of appropriately displaying a pattern or the like, comprising: a substrate on which the luminous bodies are planted; an optical fiber material disposed between the luminous bodies to be planted; And a light incident body for injecting light into the optical fiber, and the optical fiber material has a light emitting property of emitting the incident light in a light emitting direction of the light emitting body. As a result, the background color of the display of characters, designs, and the like can be made to emit light.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of the present invention will be described with reference to FIGS. In the figure, 1
FIG. 1 is a light-emitting display device embodying the present invention, wherein a light-emitting diode (light-emitting body) 3 is implanted in a matrix 2 on a substrate 2 on which electric wiring constituting the light-emitting display device 1 is made. By supplying power to the light-emitting diode 3 from a power supply device that does not have a setting, it is possible to display symbols, characters, and the like.

Reference numeral 4 denotes an optical fiber material. The optical fiber material 4 is formed of a transparent or translucent resin material such as acrylic resin or polycarbonate in a cylindrical shape. In this example, the light emitting diodes 3 are arranged so as to be sandwiched between adjacent vertical lines. The optical fiber material 4 has a reflectance set so that a part of the light passing therethrough is emitted from the peripheral surface, and a reflective material 5 is further provided on the peripheral surface facing the substrate 2. The light reflected here is set so that it can be emitted from the peripheral surface on the opposite side, that is, from the planting side of the light emitting diode 3 (light emitting property). These optical fiber members 4 are disposed such that their base ends are converged and the base end faces the light source (light incident body) 6. The bundle of optical fibers 4 converged to be disposed opposite to the light source 6 may be singular or plural. In the case of a single bundle, all the optical fiber materials 4 emit light (emission of light) in the same color and emit the same. Although the background color can be used, in the case of a plurality, the convergent bundle is set so as to be incident from an individual light source, so that the color-coded optical fiber material 4 emits light and the It can be. The light source 6 may be of various colors instead of a single color, and the color may be changed over time or blinked. Further, as the light source 6, red, green,
The three primary colors of blue light can be employed, and in this case, almost infinite colors can be provided by adjusting the luminous intensity (brightness) of these three primary colors. It can be set as required. A reflecting material (not shown) is provided at the tip of the optical fiber material 4, and is set so as to reflect the light to be emitted from the tip.

In the embodiment of the present invention configured as described above, the light-emitting display device 1 displays characters and designs by turning on the light-emitting diodes 3, and the display background is an optical fiber material. The light emission color of No. 4 appears.
That is, the light entering the optical fiber material 4 from the light source 6 is
The light is emitted from the peripheral surface of the optical fiber material 4 for which the reflectance is set, and is emitted toward the light emitting diode 3 planting side by the reflecting material 5 provided on the side facing the substrate 2. The optical fiber material 4 can efficiently emit light as the background color on the background. Moreover, by appropriately changing the light source 6, various variations such as a change in the background color and a change with time can be provided, and the high-quality light-emitting display device 1 having a high visibility effect can be provided. In addition, if the light source 6 for emitting light from the optical fiber material 4 employs a light source in which the three primary colors of light, red, blue, and green, are appropriately adjusted in brightness, an almost infinite color can be synthesized. By appropriately changing the background color in accordance with time, the visual recognition effect is further enhanced, and the light-emitting display device 1 with a sense of quality can be obtained.

The present invention is, of course, not limited to the first embodiment, but may be an optical fiber material as in the second and third embodiments shown in FIGS. An arrangement in which the LED 4 is sandwiched between adjacent rows of the light emitting diodes 3 and an arrangement in which the LED 4 is sandwiched between skews can be implemented. Optical fiber material 4
Are arranged in each direction as one unit, and these units can be combined. In this way, the luminescence display device 1 can be further diversified.

Further, when the substrate 7 is formed of a translucent material, the optical fiber material 4 is reversed from the substrate 7 on the light emitting diode 3 display side as in the fourth embodiment shown in FIG. In this case, there is an advantage that the optical fiber material 4 can be selected without being restricted by the interval between the adjacent light emitting diodes 3.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a light emitting display device.

FIG. 2 is a partial schematic front view of a display unit.

FIG. 3 is a partial cross-sectional view of a display unit.

FIGS. 4A and 4B are partial schematic front views of a display unit showing a second embodiment and a third embodiment, respectively.

FIG. 5 is a partial cross-sectional view of a display unit according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light-emitting display device 2 Substrate 3 Light-emitting diode 4 Optical fiber material 5 Reflector 6 Light source

Claims (1)

[Claims] 1. A character using a luminous body serving as a luminous source of light,
What is claimed is: 1. A light-emitting display device configured to be capable of appropriately displaying a pattern or the like, comprising: a substrate on which the luminous bodies are planted; an optical fiber material disposed between the luminous bodies to be planted; And a light incident body for injecting light into the light emitting device, wherein the optical fiber material has a light emitting property of emitting the incident light in a light emitting direction of the light emitting body.