JPH07225556A - Display device - Google Patents

Abstract

PURPOSE:To change finely a hue of a light emission color and to provide an original red color by sticking at least one piece of color correction filter on an incident surface of light of a transparent light transmission body or applying color correction paint. CONSTITUTION:At least three light emitting diodes 2 generating exclusive colors of red, green, blue are made displaying elements, and the transparent light transmission body 1 is arranged between the light emitting diodes 2 and a display surface, and a periphery excepting respective light outgoing surfaces of the light emitting diodes 2 and the periphery excepting the display surface and the light incident surface of the transparent light transmission body 1 are covered by a light reflection body, and a light emission light source is light-guided to the display surface. Then, three pieces of light emitting diodes 2 generating three exclusive colors of red, green, blue are made a set of three pieces, and the transparent light transmission body 1 sticking reflection sheets 3 on parts excepting a light incident part and the display part is arranged between the light emitting diodes 2 and the display surface. A diffusion sheet 4 is arranged on the display surface, and the color correction filter or the color correction paint 5 is stuck on the incident surface of light. Or, the color correction filter or the color correction paint 5 is stuck on the light emitting diodes 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit display element of a large-sized display for color display.

[0002]

2. Description of the Related Art As shown in FIG. 1, at least three reds,
A light emitting diode that generates blue and green exclusive colors is used as a display element, a transparent light guide is disposed between the light emitting diode and the display surface, and a light source emitted from the light emitting diode is guided to the display surface to be desired. Was causing the color.

[0003]

In the conventional display device, red of the at least three light-emitting diodes which emit red, green and blue exclusive colors produces red. There was a problem that it was difficult.

[0004]

As means for solving the above problems, as shown in FIGS. 2 and 3, a color correction filter is attached to the light entering portion of the transparent light guide, or a color correction filter is attached. Apply paint, and as shown in FIGS. 4 and 5,
The above problem is solved by attaching a color correction filter to the light emitting diode or applying a color correction paint.

[0005]

By introducing the display device according to the present invention, it is possible to provide a display device capable of subtly changing the tint of the color correction filter to obtain the desired color development and to obtain the original red color. it can.

[0006]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. 2 is a perspective view of an embodiment of the present invention, and FIG. 3 is a side view of the embodiment of the present invention.

Reference numeral 1 in the figure is a transparent light guide, which is a transparent acrylic plate in this case. Reference numeral 2 denotes a light emitting diode, which in this case is a light emitting diode having a diameter of φ5 and a height of 12 mm and generating three dedicated colors of red, green and blue. 3 is a reflection sheet having a high reflectance, 4 is a diffusion sheet, and 5 is a color correction filter or paint.

In this embodiment, as shown in FIGS. 2 and 3, red,
A set of three light emitting diodes 2 for generating dedicated colors of three colors of green and blue is set as one set, and a reflection sheet 3 is attached between the light emitting diode 2 and the display surface in addition to the light incident part and the display part. The light guide 1 is arranged. A diffusion sheet 4 is arranged on the display surface, and a color correction filter or color correction paint 5 is attached to the light incident surface.

[0009]

Embodiment 2 FIGS. 4 and 5 show a second embodiment, and are a perspective view and a side view of an embodiment of the present invention.

4 and 5 are the same as those in the first embodiment except that the color correction filter or the color correction paint 5 is attached to the light emitting diode 2 in the display described in the first embodiment.

[0011]

According to the conventional method, the red light emitting diode 2 is used.
The emission color of does not look like the original red.

On the other hand, by using the display device shown in the first and second embodiments of the present invention, the tint of the luminescent color can be subtly changed and the original red color can be obtained. It was

[Brief description of drawings]

FIG. 1 is a perspective view showing a conventional display device.

FIG. 2 is a perspective view showing a display device according to the first embodiment of the present invention.

FIG. 3 is a side view showing the display device according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing a display device according to a second embodiment of the present invention.

FIG. 5 is a side view showing a display device according to a second embodiment of the present invention.

[Explanation of symbols]

 1: Transparent light guide 2: Light emitting diode 3: Reflective sheet 4: Diffusion sheet 5: Color correction filter or color correction paint

Claims (2)

[Claims] 1. A display element comprising at least three light-emitting diodes which generate red, green, and blue exclusive colors, and a transparent light guide is disposed between the light-emitting diodes and the display surface. In a display device such as a light reflector that covers the periphery except the light emitting surface and the periphery of the transparent light guide except the display surface and the light incident surface, the light of the transparent light guide is guided to the display surface. At least one color correction filter is attached to the incident surface of, or a color correction paint is applied. 2. A display element comprising at least three light-emitting diodes which generate red, green and blue exclusive colors, and a transparent light guide is arranged between the light-emitting diodes and the display surface. In a display such as a light guide for a light emitting source to the display surface, a color correction filter is attached to at least one of the light emitting diodes, or a color correction paint is applied.