JPH11153968A - Color display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately mix colors of a color display and to precisely display the colors. SOLUTION: This device is provided with a light source section 1, which simultaneously generates at least two primary colors of the three primary colors of light beams, an adjustment section 2 which respectively adjusts the output of each of the primary colors generated by the section 1, a wave combining section 5 which is connected to the section 1 and combines the primary color light beams, a wave guding section 6 which transmits the combined color light beams combined by the section 5 and emits the light beams from a transmission terminal 6' and a display section 7 on which the terminals 6' of the section 6 are arranged.

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 an apparatus for controlling switching of color display by light.

[0002]

2. Description of the Related Art As a conventional color display device, for example, the one shown in FIG. 3 is known.

[0003] In this conventional color display device, nine light-emitting bodies A composed of light-emitting diodes (LEDs) are arranged in a display section B in a lattice pattern. The luminous body A emits only one of the three primary colors of light, "red", "blue", and "green", and several luminous bodies A are selected for each primary color. An adjusting unit C for adjusting the output of light emission is connected to each of the light emitters A. Also, the adjusting unit C includes
A control unit D for centrally controlling each adjustment unit C is connected.

According to this conventional color display device, the light emitted (emitted) from each illuminant A is multiplexed in the air before reaching the viewer, and the entire display section B is mixed from three primary colors (additive color mixing). Color will be recognized. The adjusting unit C
By adjusting the luminous output of luminous body A by
The color recognized on the display unit B will be changed.

[0005]

In the above-described conventional color display device, the entire display section B having a considerable area is made into one color unit by using a so-called point drawing method, so that a high-definition color display is performed. There is a problem that is impossible.

Furthermore, since the light of each light emitter A is multiplexed in the air, if an obstacle (smoke, water vapor, etc.) is present in the multiplexed air, it is not accurately mixed with the desired color. There is a problem.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a color display device capable of accurately mixing colors and displaying high definition.

[0008]

In order to solve the above-mentioned problems, a color display device according to the present invention employs the following means.

That is, according to the first aspect, a light source unit capable of simultaneously emitting at least two of the three primary colors of light, an adjusting unit for adjusting the emission output of each primary color of the light source unit, and a light source unit connected to the light source unit. A display in which a multiplexing section for multiplexing primary color light, a waveguide section for transmitting light of the multiplexed color in the multiplexing section and emitting light from a transmission terminal, and a transmission terminal for the waveguide section are arranged. And a part.

In this means, before the light is emitted into the air, the light of each primary color is multiplexed in the multiplexing section and mixed. Further, light of a mixed color is emitted from the transmission terminal of the waveguide, and the transmission terminal of the waveguide serves as one color unit.

According to a second aspect of the present invention, in the color display device according to the first aspect, at least two light sources are provided so that the luminous bodies that emit only one of the three primary colors of light emit different primary colors. It is characterized by becoming.

In this means, each primary color is emitted from a dedicated illuminant.

According to a third aspect of the present invention, in the color display device according to the first or second aspect, the waveguide is made of an optical fiber.

According to this means, an optical fiber having a thin line shape and high waveguide performance is selected as the waveguide portion.

According to a fourth aspect of the present invention, in the color display device of the third aspect, the transmission terminals of the waveguide are penetratingly supported by the display and arranged in a lattice.

According to this means, the transmission terminal of the thin line-shaped waveguide portion is stippled on the display portion as it is.

According to a fifth aspect of the present invention, in the color display device according to any one of the first to fourth aspects, the adjustment unit is connected to a control unit having an image control function.

According to this means, the transmission terminal of the waveguide unit which is a color unit is also a pixel which is a video image unit.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the color display device according to the present invention will be described with reference to the drawings.

In this embodiment, as in the above-described conventional example, a light-emitting body 1 composed of a light-emitting diode
1, 12, and 13 are provided.

Light-emitting bodies 11, 12, and 13 of this embodiment
Are the three primary colors of light, "red", "blue", and "green".
And emits only one of the primary colors, and is composed of a total of three as one color unit. These luminous bodies 11,
In the same manner as in the above-described conventional example, the light-emitting bodies 11 and
A control unit 3 for centrally controlling each of the adjusting units 2 is connected via an adjusting unit 2 for adjusting the output of light emission of each of the light emitting devices 12 and 13. The control unit 3 has a video control function for controlling the display of video such as a moving image and a still image.

Individual light guides 4 made of optical fibers are respectively connected to the heads of the light emitters 11, 12, 13 from which light is emitted.

The individual waveguides 4 are composed of the luminous bodies 11, 12, 13
Are connected to each other by being fused to the head or inserted into a mounting hole, and individually transmit light emitted from each of the light emitters 11, 12, and 13. The individual waveguide section 4 is provided up to the multiplexing section 5.

As shown in detail in FIG. 2, the multiplexing section 5 connects the converged individual waveguide section 4 and one waveguide section 6 via a light transmitting material 51 such as acrylic, and Each of the waveguide portions 4 and 6 is covered with a cladding material 52 around the connection end of the waveguide portion 6 and a translucent material 51. And multiplexes the light transmitted thereto.

The waveguide 6 is made of an optical fiber.
The light multiplexed by the multiplexing unit 5 is transmitted and emitted from the transmission terminal 6 ′. The transmission terminal 6 'is penetrated by the display unit 7 and arranged in a lattice.

According to this embodiment, since the optical fibers having a thin line shape and high waveguide performance are employed for the individual waveguide portions 4 and 6, the optical waveguide system from the light source portion 1 to the display portion 7 is used. Are arranged compactly and light loss is reduced.

The transmission terminal 6 ′ of the waveguide section 6 is connected to the display section 7.
, The support structure of the waveguide unit 6 to the display unit 7 of the transmission terminal 6 ′ is simplified.

In this embodiment, as in the above-described conventional example, the control unit 3 controls the adjusting unit 2 to adjust the output of each of the light emitters 11, 12, and 13 of the light source unit 1, respectively. In addition, the color of the color mixture (additive color mixture) in the light multiplexing in the multiplexing unit 5 can be changed.

At this time, since the multiplexing is performed by the light transmitting material 51 of the multiplexing unit 5 where no obstacle exists, the color is accurately mixed with the desired color. Further, since the translucent material 51 of the multiplexing portion 5 is covered with the clad material 52, no light leakage loss occurs.

Further, the light of the color mixed in the multiplexing unit 5 is
The light is transmitted by the waveguide 6 and is emitted as it is from the transmission terminal 6 ′.

Therefore, the small-diameter transmission terminal 6 ', which is the cut end face of the waveguide section 6 made of a thin optical fiber, serves as one color unit. For this reason, high-definition color display is possible. The light multiplexed by the multiplexing unit 5 becomes brighter than the light emitted from each of the light emitters 11, 12, and 13 due to additive color mixture. For this reason, even when the display unit 7 is a large screen installed outdoors, the color display does not become dark.

By the image control function of the control section 3, the transmission terminal 6 'of the waveguide section 6 can be displayed on the display section 7 as a pixel, which is a unit of image of the image, to display an image such as a moving image or a still image. .

As described above, in addition to the illustrated embodiment, an LD, a liquid crystal, a light bulb, a CRT, or the like may be used as the light source of the light source unit 1.

Further, when color display is performed in a specific color system, the light source unit 1 may be capable of simultaneously emitting only two of the three primary colors of light.

[0035]

As described above, in the color display device according to the present invention, since each light is multiplexed and mixed in the multiplexing unit instead of in the air, it is possible to accurately mix light displayed in color. There is an effect that can be.

Further, since the transmission terminal of the waveguide section can be set to one color unit, there is an effect that color display can be performed with high definition.

Further, since the colors are additively mixed by the multiplexing of the respective lights in the multiplexing unit, and the multiplexed light becomes brighter than the respective lights before the multiplexing, the display unit is installed outdoors. This has the effect of being suitable for a large screen to be displayed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a color display device according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of FIG.

FIG. 3 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light source part 11, 12, 13 Light-emitting body 2 Adjusting part 3 Control part 5 Combining part 6 Waveguide part 7 Display part

Continued on the front page (72) Inventor Taketoshi Matsuura 1-3-1 Gotenyama, Musashino-shi, Tokyo NTT Advanced Technology Corporation (72) Inventor Takashi Uetake 1-chome, Gotenyama, Musashino-shi, Tokyo No. 3 NTT Advanced Technology Co., Ltd.

Claims (5)

[Claims] 1. A light source unit capable of simultaneously emitting at least two of the three primary colors of light, an adjusting unit for adjusting the emission output of each primary color of the light source unit, and a light source unit connected to the light source unit to combine the light of each primary color. A multiplexing unit that transmits light, a waveguide unit that transmits light of the color multiplexed by the multiplexing unit and emits light from the transmission terminal, and a display unit in which the transmission terminal of the waveguide unit is arranged. Color display device. 2. The color display device according to claim 1, wherein at least two light source units are provided so that light-emitting bodies that emit only one of the three primary colors of light emit different primary colors. Color display device. 3. The color display device according to claim 1, wherein the waveguide is made of an optical fiber. 4. The color display device according to claim 3, wherein the transmission terminals of the waveguide section are supported in a penetrating manner on the display section and arranged in a lattice. 5. The color display device according to claim 1, wherein the adjustment unit is connected to a control unit having an image control function.