JPH06230733A - Color display device - Google Patents

Abstract

PURPOSE:To enable the image display of a fine dot matrix and the display by color mixing exclusive of 4 colors as well by miniaturizing a color display body. CONSTITUTION:This color display device has the cylindrical color display body 10 segmented with red, blue, green and white on its outer surface, a permanent magnet 12 fixed therein and a tubular bushing 14 rotatably supporting the color display body 10 together with the permanent magnet 12. Further, the device consists of excitation coils 18, 20 which intersect orthogonally with the opening direction of the color display body 10 and are arranged with yokes 18b, 20b in the surface part of the color display body 10 having the permanent magnet 12 or the colored permanent magnet 12. The prescribed color display with the color display body 10 is executed by the magnetic polarities of the yokes 18b, 20b and the polarity of the permanent magnet 12 by controlling the polarities of the energization of the excitation coils 18, 20 and the energization time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an advertisement display device for displaying character information and video information of a color still image or moving image on a dot matrix, or a color display device used for a wall image display device or the like.

[0002]

2. Description of the Related Art As a color display device (module) of this type, an example is known in which a permanent magnet and an exciting coil are used to drive a multicolor rotating body to display a desired color. Examples of such a method include “Japanese Patent Laid-Open No. 51-144593” and “Japanese Patent Laid-Open No.
No. 8-185885 ”,“ JP-A-62-58508 ”.
Issue bulletin ". Further, the applicant of the present invention relates to a multicolor information display device for displaying character information and video information of a color still image or a moving image on a dot matrix by using this kind of permanent magnet and exciting coil.
74 "" Japanese Patent Application No. 4-103908 "" Japanese Patent Application No. 4-1 "
"03909", "Japanese Patent Application No. 4-128010", "Japanese Patent Application No. 4-128011", "Japanese Patent Application No. 4-131836"
"Practical application No. 4-34508""Patent application No. 4-219661
No. ”“ Practical application No. 4-64660 ”“ Practical application No. 4-6466
Various proposals have been made with "No. 1".

In these proposals by the applicant, for example, the surface is red (R) color, blue (B) color, green (G) color, and white (W).
A lid is provided on one side of a cylindrical color display body that is equally divided by each color, and a permanent magnet is arranged at the center of the lid. Further, a plurality of exciting coils and a yoke are arranged in a cylindrical member to switch the polarity of energization to the exciting coils and control the time of energization (pulse signal). In other words, the principle of the step motor is applied to rotate and stop the visual part of the color display body to display a desired color. In this way, a dot-matrix large-screen multicolor information display device is arranged in which a large number of color display devices that perform color display are arranged in rows and columns, and character information and video information are displayed as color still images or moving images.

[0004]

By the way, the above-mentioned conventional example has room for improvement in response to a demand for displaying more colorful and precise character information and video information. As an example of this improvement, the proposal by the applicant has the following specific problems. (1) I want to make the color display smaller. That is, it is desired to display the character information and video information of a color still image or a moving image using a more precise dot matrix. (2) In addition to making the color display body smaller, red,
I want to display various colors by mixing colors other than four colors such as blue, green, and white. That is, the display of character information and video information of a color still image or a moving image by a dot matrix,
I want to do more natural colors.

The present invention has been made in view of the above circumstances. As a first object of the present invention, there is provided a color display device capable of further miniaturizing a color display body and displaying a fine dot matrix image. provide.

A second object of the present invention is to provide a color display device which can miniaturize a color display body and can display a color image of a precise and diversified dot matrix by displaying a mixed color other than four colors.

[0007]

According to the color display device of the invention of claim 1 corresponding to the first object, a cylindrical color display body whose outer surface is divided into a plurality of colors and an inside of the color display body are provided. One end of each of the plurality of yokes approaches a fixed magnet, a support member that rotatably supports the permanent magnet and the color display member, and an outer surface of the color display member divided into a plurality of colors, and the other And a plurality of exciting coils for displaying a predetermined color on the color display body by individually energizing a plurality of coils that magnetize the plurality of yokes. It is as a configuration.

According to a second aspect of the present invention, there is provided a permanent magnet having an outer surface divided into a plurality of colors, a support member for rotatably supporting the permanent magnet, and a plurality of permanent magnets. One end of each of the multiple yokes approaches the outer surface that is divided by color, and the other end of the multiple yokes is placed in an effectively open state, and multiple coils that magnetize multiple yokes are individually energized. By doing so, a plurality of exciting coils for displaying a predetermined color on the color display body are provided.

According to a third aspect of the present invention, there is provided a color display device according to the first or second aspect, wherein the other end portion of the yoke which does not face the color display body and the permanent magnet has a zero polarity. Or, by setting the unbalanced state with respect to the other polarity, controlling the energization of multiple exciting coils, and setting the rotation stop position of the permanent magnet as an intermediate or unbalanced position between at least two yokes depending on the adjacent multiple colors. It is configured to perform mixed color display.

[0010]

According to the apparatus of claims 1 and 2 having the above-mentioned structure, the outer surface of the permanent magnet is divided into a plurality of colors and the permanent magnet is provided inside, or the outer surface of the permanent magnet is divided into a plurality of colors. Only one end of the plurality of yokes approaches the surface, and the other end is effectively open to control the energization of the plurality of exciting coils to display a predetermined color.

According to the apparatus of claim 3, the energization of the plurality of exciting coils according to claims 1 and 2 is controlled to stop the rotation of the permanent magnet at an intermediate or unbalanced position between at least two yokes. Since color display is performed using a plurality of adjacent colors, mixed color display is performed together with single color display.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the color display device of the present invention will be described with reference to the drawings. First, a first embodiment corresponding to claim 1 will be described. In the first embodiment, two exciting coils are arranged on the back side of the color display body so that the color display body displays a predetermined color. That is, the color display is made compact by not providing a rotating mechanism and a driving unit such as an exciting coil and a yoke. FIG. 1 is a perspective view showing the configuration of a first embodiment of a color display device of the present invention. FIG. 2 is a sectional view taken along the line AA in FIG.

In FIG. 1 and FIG. 2, this example is a cylindrical color display in which four colors of red, blue, green and white are arranged in parallel on the outer surface in the longitudinal direction as described later. The body 10, the permanent magnet 12 fixed in the color display body 10, the tube bush 14 inserted and fixed in the through hole in the central portion of the permanent magnet 12, and the permanent magnet 12 inserted in the tube bush 14 and fixed. Is provided, that is, a round bar member 16 for rotatably disposing the color display body 10 is provided.

The color display device also includes a color display member 10.
Exciting coils 18 and 20 are provided behind the color display surface. The exciting coils 18 and 20 include coil bobbins 18a and 20a and coil bobbins 18a and 20a, respectively.
And a yoke 18b, 20b provided with a round bar portion inserted into the through hole and an exciting portion curved so as to be close to the color display surface of the color display body 10. Coil bobbin 1
8a and 20a are provided with terminals 28a to 28d to which the ends of the conductors of the exciting coils 18 and 20 are connected.

Further, a base plate 22 made of a non-magnetic metal or an insulating member, to which the tips of the round bars of the yokes 18b and 20b are fixed, is insulated and joined to the base plate 22, and
The coil bobbins 18a and 20a have terminals 28a to 28d and a circuit board 24 connected to the wiring patterns 29a to 29d. Further, on both sides of the color display body 10, mounting plates 26 and 27 to which the round bar member 16 is fixed are provided. Excitation coil 1 on the mounting plates 26, 27
The yoke end portions 18e and 20e on the 8 and 20 side are fixed to the base plate 22, but are magnetically effectively opened.

It should be noted that the color display device having this structure is a round bar member 1.
For example, 16 pieces are connected to 6, and 16 pieces are connected to 16 pieces.
A dot matrix is arranged in rows to form a display screen in a multicolor information display device such as an advertisement display device or a wall image display device. The polarity of energization of the exciting coils 18 and 20 of each color display device of this dot matrix,
By controlling the energizing time, color display is performed by the color display 10 according to the magnetic polarities of the yokes 18b and 20b and the polarities of the permanent magnets 12, and character information and video information of a color still image or moving image are formed as a whole. When a large number of color display devices are arranged in this manner, a blind plate 30 is arranged between the color display bodies (10) in order to make the display screen easy to see.

Next, the operation and function of the configuration of the first embodiment will be described. 3 (a) (b) (c)
(D) is a diagram showing a state in which a predetermined color is displayed on the color display body 10 by changing the voltage polarity of the energization of the exciting coils 18 and 20. In FIG. 3A, the exciting coil 18,
A voltage of the same polarity is applied to both of the yokes 20 and the yokes 18b, 2
Both of 0b become N poles, attracted with the S poles of the permanent magnets 12, and the red color of the color display body 10 is displayed between the blindfold plates 30.

In FIG. 3 (b), both exciting coils 18 and 20 are energized with a voltage polarity opposite to that in the case of FIG. 3 (a). As a result, both the yokes 18b and 20b become south poles, and the north poles of the permanent magnets 12 are attracted to display the green color of the color display 10 between the blind plates 30. In FIG. 3 (c),
The exciting coils 18 and 20 are energized with opposite voltage polarities. As a result, the N pole of the yoke 18b and the permanent magnet 1
The second S pole is attracted, and the S pole of the yoke 20b and the N pole of the permanent magnet 12 are attracted to balance both poles of the permanent magnet, whereby the blue color of the color display body 10 is displayed between the blindfold plates 30. To be done. In FIG. 3D, the voltage polarity is reversed from the energized state in the case of FIG. 3C to energize. As a result, the south pole of the yoke 18b and the north pole of the permanent magnet 12 are attracted, and the north pole of the yoke 20b and the south pole of the permanent magnet 12 are attracted to balance both poles of the permanent magnet, thereby displaying a color. Body 10
The white color is displayed between the blindfold plates 30.

Next, a second embodiment corresponding to claim 2 will be described. In the second embodiment, the color display body 10 and the permanent magnet 12 are separate bodies in the first embodiment.
The magnetic gap is narrowed by seemingly integrating them. When the color display body 10 shown in FIG. 3 is used, the gap between the yoke 18 and the permanent magnet 12, that is, the magnetic gap is widened by the thickness of the color display body 10, so that the rotation efficiency of the step motor is reduced. Therefore, the color display 10 and the permanent magnet 12 are not colored separately, but are directly colored on the outer surface of the permanent magnet 12. In the example in which the color of the color display 10 is about 150 μm in the example in which the color is directly applied to the surface of the permanent magnet 12, in the example in which the paint is directly applied to the surface of the permanent magnet 12, the thickness can be set to several μm, so that the magnetic gap is reduced. , Can be narrower. As a result, the driving efficiency of the steps of rotation and stop and the accuracy of stop are improved, and the color display 1
The vibration of 0 is reduced, and it becomes possible to display the text information and the video information of the detailed color still image or moving image.

As described above, in the first and second embodiments, the two exciting coils 18 and 20 are arranged on the rear side of the color display body 10, and only the permanent magnet 12 is arranged in the color display body 10. Since the exciting coil, the stator and the like are not arranged in the color display body 10 unlike the conventional color display device, the color display body 1
Since 0 can be miniaturized, more precise dot matrix display can be performed.

Next, a third embodiment corresponding to claim 3 will be described. In the third embodiment, the four colors of red, blue, green and white are displayed in a single color in the first and second embodiments, while a mixed color of red, blue, green and white is also displayed. FIG. 4 is a perspective view showing the configuration of the octagonal tubular color display body in the third embodiment. In FIG. 4, the octagonal tubular color display member 34 is sequentially colored in red, blue, green and white for each of two parts in the outer eight faces.

In the octagonal tubular color display 34,
The permanent magnet 36 is fixed similarly to the color display body 10 in the color display device shown in FIG. Other configurations are similar to those of the color display device shown in FIG. 1, and here, the octagonal tubular color display member 34 is used.
Components other than the permanent magnet 36 will be described with reference to FIG.

The operation and function of the configuration of the third embodiment will be described. 5 (a) (b) (c) (d)
FIG. 6 is a diagram showing a case of displaying in red, blue, green and white as in the first embodiment. In FIG. 5A, both exciting coils 18 and 20 in FIG. 1 are energized with the same voltage polarity,
Both the yokes 18b and 20b are N poles, and the permanent magnet 36
The red color of the two parts in the outer eight faces of the octagonal tubular color display member 34 is attracted to the S pole and the red color is displayed between the blindfold plates 30.

In FIG. 5B, both exciting coils 18 and 20 are energized with a voltage polarity opposite to that in the case of FIG. 5A to make both yokes 18b and 20b S poles, and the permanent magnet 36
And the green of two parts in the outer eight faces of the octagonal tubular color display member 34 is displayed between the blind plates 30 by being attracted to the N pole. Figure 5
In (c), exciting coils 18 and 20 are energized with voltage polarities opposite to those in the case of FIG.
As the N pole and attract the S pole of the permanent magnet 36, and at the same time attract the S pole of the yoke 20b and the N pole of the permanent magnet 36 so that both poles of the permanent magnet are balanced to form an octagonal tubular color display 3
The blue color of the two parts in the outer eight faces of 4 is displayed between the blindfold plates 30. In FIG. 5D, the voltage polarity is reversed from the energized state in the case of FIG. Display in between.

Next, a case of displaying a mixed color in addition to the four-color monochromatic display will be described. FIG. 6 shows (a) (b) (c)
(D) is a figure which shows the case where a mixed color is displayed. Figure 6
In (a), only one side of the exciting coil 18 in FIG. 1 is energized to make the yoke 18b an N pole and attract the central portion of the S pole of the permanent magnet 36 to the outer side of the octagonal tubular color display 34. The red and blue colors of two parts in the plane are displayed between the blindfold plates 30. As a result, a mixed color display of red and blue is performed.
In FIG. 6B, only the exciting coil 18 is energized with a voltage polarity opposite to that in FIG. 6A to make the yoke 18b an S pole, and the permanent magnet 36 is attracted to the center of the N pole to form an octagonal cylinder. The green and white of two parts on the outer eight sides of the appearance color display 34 are displayed between the blindfold plates 30. As a result, a mixed color display of green and white is performed.

In FIG. 6 (c), only the exciting coil 20 is energized to make the yoke 20b an N pole, which is attracted to the central portion of the S pole of the permanent magnet 36, so that the octagonal tubular color display 34 has eight outer faces. The white and red of the two parts inside are displayed between the blind plates 30. In FIG. 6 (d), the octagonal tubular color display member 34 is turned on by inverting the voltage polarity from the energized state in FIG. 6 (c).
Blind plate 3 for the green and blue of the two parts in the outer eight sides of the
Display between 0.

Although the octagonal tubular color display member 34 has been described with reference to FIGS. 4, 5 and 6, the cylindrical color display member 10 shown in FIG. That is, the color display body 10 of FIG. 3 may be colored in red, blue, green, and white, and the rotation drive similar to that of the octagonal tubular color display body 34 may be performed. In this case, the exciting coils 18, 2
The yokes 18b and 20b of 0 can be brought closer to the magnet 12 as compared with the case of the octagonal tubular color display body 34, so that the magnetic gap becomes small and the rotation and rotation of the color display body 10 at the time of displaying mixed colors are performed. The driving efficiency of the step of stopping and the accuracy of stopping are improved, vibration is reduced, and character information and video information of a color still image or a moving image can be displayed by a precise dot matrix. In this way, the exciting coils 18, 2
By controlling the energization polarity and energization time of 0, red, blue, green, and white single-color displays as well as mixed color displays of these are possible.

In place of the combination of the color display 10 and the permanent magnet 12 or the combination of the octagonal tubular color display 34 and the permanent magnet 36, only the permanent magnet 12 or the permanent magnet 36 is used, respectively, and Even if the outer surface of the permanent magnet 12 or the permanent magnet 36 is configured by coloration as described above, similar color display and mixed color display can be performed.

[0029]

As described above, according to the first and second aspects of the invention, the outer surface is divided into a plurality of colors and the color display is provided with a permanent magnet inside, or the outer surface is divided into a plurality of colors. Since only one end of the plurality of yokes approaches the outer surface of the plurality of yokes, and the other end is effectively open, the energization of the plurality of exciting coils is controlled to display a predetermined color. It has an effect that it can be miniaturized and a fine dot matrix image can be displayed.

According to a third aspect of the present invention, the energization of the plurality of exciting coils according to the first and second aspects is controlled, and the rotation of the permanent magnet is stopped at an intermediate or unbalanced position between at least two yokes. By performing the above, it is possible to display a plurality of single colors as well as to display a mixed color of a plurality of adjacent colors, and it is possible to miniaturize the device, and it is possible to display a color image of a precise and diverse dot matrix by the display of mixed colors Have.

[Brief description of drawings]

FIG. 1 is a perspective view showing a partially cutaway configuration of a color display device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3A is an explanatory diagram of a case where red is displayed on the color display body in FIG. 1. (B) is an explanatory view when displaying a green color on the color display body in FIG. 1. FIG. 3C is an explanatory diagram for displaying blue in the color display body in FIG. 1. Figure 1 (d)
It is explanatory drawing at the time of displaying white with a color display body inside.

FIG. 4 is a perspective view showing a configuration of an octagonal tubular color display member in a third embodiment.

5A is an explanatory diagram of a case where a color display body in FIG. 4 displays red. (B) is an explanatory view when displaying a green color on the color display body in FIG. 4. FIG. 6C is an explanatory diagram for displaying blue in the color display body in FIG. 4. (D) is FIG.
It is explanatory drawing at the time of displaying white with a color display body inside.

FIG. 6A is an explanatory diagram of a case where a mixed color of red and blue is displayed on the color display body in FIG. (B) is an explanatory view in the case of displaying a mixed color of green and white on the color display body in FIG. 4. (C) is an explanatory view in the case of displaying a mixed color of white and red on the color display body in FIG. 4. (D) is an explanatory view in the case of displaying a mixed color of blue and green on the color display body in FIG. 4.

[Explanation of symbols]

 10-color display 12 Permanent magnet 16 Round bar member 18, 20 Excitation coil 18b, 20b Yoke 18e, 20e Yoke end 22 Base plate 30 Blind plate 34 Octagonal tubular color display 36 Permanent magnet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Mitsuhashi 5-6-12 Maehara-cho, Koganei-shi, Tokyo Incorporated company TAII Citizen Koganei factory (72) Inventor Koichi Nakajima Tokyo Metropolitan Tanashi 6-12 Hommachi, Ichi, Citizen Watch Co., Ltd. Tanashi Factory

Claims (3)

[Claims] 1. A tubular color display body whose outer surface is divided into a plurality of colors, and a permanent magnet fixed inside the color display body.
One end of each of the plurality of yokes approaches the support member that rotatably supports the permanent magnet and the color display member and an outer surface of the color display member that is divided into a plurality of colors, and the other end of the yoke is effective. And a plurality of exciting coils for displaying a predetermined color on the color display body by individually energizing a plurality of coils that magnetize the plurality of yokes. Color display device. 2. A permanent magnet whose outer surface is divided into a plurality of colors, a support member which rotatably supports the permanent magnet, and one end of a plurality of yokes on the outer surface where the permanent magnet is divided into a plurality of colors. Are close to each other, and the other end is effectively placed in an open state, and a predetermined color is displayed on the color display by individually energizing a plurality of coils that magnetize the plurality of yokes. A color display device comprising a plurality of exciting coils for 3. The structure according to claim 1 or 2, wherein the other end of the yoke that does not face the color display member and the permanent magnet has a polarity that is zero or unbalanced with respect to the other polarity, and a plurality of polarities are provided. A color display device, wherein energization of an exciting coil is controlled, rotation of the permanent magnet is stopped at an intermediate or unbalanced position between at least two yokes, and mixed color display of a plurality of adjacent colors is performed.