JPS58134681A - Display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a large number of display elements arranged in columns and rows, and each display element is selectively controlled so as to have different display states for the viewer, and can be used as an arbitrary display device. The present invention relates to a display device that displays patterns.

A conventional electromagnetically controlled magnetic drive display element is described in US Pat. No. 3,916,403.

This is a fixed display board that rotatably supports one straight side of a wing-shaped member formed by a semicircular flat permanent magnet having display surfaces of different colors on the front and back sides, and two stable position surfaces covered by the wing-shaped member. A display surface of a different color colored on the top cooperates with a display surface on either the front or the back of the wing-like member, which is reversely moved and stabilized by an electromagnet installed on the back side of the fixed display board. It is a display element that has a display conversion surface that is approximately twice the display area of the wing-shaped member, and is characterized by being more energy efficient, longer lasting, and having better daytime display effects than conventional light bulbs as display elements. have and are being implemented. However, in a dark room or at night, it is necessary to illuminate diagonally from the front side of the display device, which makes the illumination uneven and the lighting equipment visible, making it unsightly. External lighting had to be done using a power-consuming light source such as a spotlight located far away, resulting in large energy consumption.

A proposal to improve this shortcoming was published in 1983 as a patent application.
It is described in the published patent publication No. 142381. The first proposed technology described in this publication will be explained in conjunction with the configuration of the US patent using FIGS. 1, 2, and 3. 2 of said semicircular permanent magnet wing-like members 2 in two positions;
One of the features of the first proposal is that one of the two stable positions is a light-transmitting region, and a light-emitting display surface 1a is formed in which a light-transmitting and diffusing member 3 of an arbitrary color is provided. By arranging an internal illumination light source shared by all display elements from behind the display device at a certain point, the wing-like member 2 can be illuminated on the non-light-emitting black display surface 1b (indicated by diagonal lines in the figure) of the fixed display board 1. In the first state shown in FIG. 1 in which the light from the internal light source is colored by the colored light transmitting and diffusing member 3 so that the surface color is the same as the diffused emitted light color, in the first state shown in FIG. In the second state shown in FIG. 2, the display surface on one side of the wing member 2 is colored, and the light emitting display surface 1a is covered by the wing-like member 2 on the opposite display surface, thereby blocking light. and black (indicated by a slope in the figure)
In the first state, the light-emitting display surface 1a and the display surface that is displayed when external light hits the wing-like member 2 cooperate to display one type of color display. In the second state, the display element does not emit light, and when exposed to external light, the black display surface 1b on the fixed display board and the black display surface of the wing-shaped member 2 cooperate to display black. This is a technology that has a display element that can convert two types of display colors.

The difference between this first proposed technology and the structure of the U.S. patent is not only that it forms a light-emitting display surface 1a that diffuses internal illumination light toward the front side, but also that the electromagnets of the U.S. patent are installed on the back side of the fixed display board. Instead of installing one for each display element,
The problem is that a means for moving these display elements is provided on the back side.

Therefore, if this means of transportation had not been used, the shadow of the branched magnetic pole 5'' of the Y-shaped electromagnet of the U.S. patent would have appeared near the center of the light emitting display surface 1a, as shown in FIG. However, the first proposal with the above-mentioned moving means has the characteristic that an electromagnetic shape is formed only when the display is converted, and no shadow appears when the display is changed.

However, in any case, when there is no external light, more than half of the display area of the display element becomes dark, and the figure 8 display without external light as shown in Figure 3 is difficult to achieve due to the display pattern. The disadvantage was that it lacked continuity and was difficult to read.

There was also one more problem with this first proposed technique. From the viewpoint of energy saving, when the internal illumination light source is turned off during the daytime, the display element in the second state displays black and the wing-like member 2 displays the same color as the luminescent color of the luminescent display surface 1a. This means that the brightness contrast with the display element in the first state is poor. The reason for this is that when daylight hits the color light-transmitting and diffusing member 3 forming the light emitting display surface, most of the daylight passes through the color light-transmitting and diffusing member 3 and is behind the display device. A portion of the light is absorbed within the machine frame in which the lighting equipment is installed, and less light is emitted from the color light-transmitting and diffusing member 3 to the front side again, and the surface of the color light-transmitting and diffusing member 3 is exposed to daylight. This is because the display surface 1a of the wing-like member 2 has a black color with only a small amount of reflected light. Therefore, the contrast with black is somewhat good, but the contrast between black and the reflective display surface 1a with only the external light is poor, and the overall display is a dark image that is difficult to see clearly.

In addition to the first proposal mentioned above, the publication also describes a second proposed technique of the embodiment shown in FIGS. 4 and 5 for further increasing the display brightness of the display element. . To explain this, FIG. 4 shows two sets of the proposed display elements, each with a different display state. An arcuate opaque mask 7 with openings 6 for the two display elements is placed between the viewer and a vertically elongated fluorescent lamp 4 placed in the recess of the mask. Each aperture 6 has a curved wing-like member 9 pivoted on a vertical pivot 8 proximate the end of each aperture in the mask 7. This curved wing-shaped member 9 is in a second state (closed state) in which the corresponding opening is covered and the low reflectance convex surface 9a of the curved wing-shaped member is exposed to the observer.
and a first state (open state) in which the opening is opened and the reflective concave surface 9b of the curved wing-shaped member is exposed. At the rear of each fluorescent lamp 4, when the curved wing member is opened, the fluorescent lamp 4
A concave reflecting mirror 10 is arranged so that a part of the light is reflected and goes out from the aperture 6. This reflecting mirror 10 is
A substance with high light reflectivity is coated on the concave portion 11 except for the protruding portion surface 11b which is laterally protruded from the mask 7 to form the protruding portion 11a. The remaining light from the fluorescent lamp 4 also passes directly through the opening or into the curved wing 9 when the curved wing is opened.
It is reflected by the concave surface 9b and reaches the viewer. In the first state in which the curved wing-like member 9 is opened, the curved wing-like member 9 has a concave portion 11
It is placed along the shape of the overhanging portion 11a. The concave surface 11b of the overhanging portion 11a, which would be visible to the observer in the second state where the curved wing-shaped member is closed, is processed to have a low reflectance.

Each curved wing-shaped member 9 has a permanent magnet 1 that cooperates with an electromagnet 5 (see FIG. 5) that can be magnetized in both directions to realize its opening/closing operation.
It has 2. One electromagnet 5 is arranged for each curved wing-shaped member 9.

The display element with such a configuration does not use the same internal illumination light source method as many display elements arranged in rows and columns like the first proposed display device, but uses the reflective surface of the concave reflector 10 when in the open state. Since the concave surface 9b of the wing-shaped member 9 is illuminated by the illumination light of the fluorescent lamp 4 placed very close to the front diagonal side thereof, in addition to the light emitted directly from the fluorescent lamp 4 to the viewer side, the above-mentioned 2. The light reflected by the two reflective surfaces 10 and 9b allows most of the display elements to be displayed brightly even in the absence of external light such as daylight, and when in the closed state, the convex surface 9a of the wing-shaped member 9 displays a low reflectance. This and the low reflectance display of the concave surface 11b of the concave mirror overhanging portion cooperate to produce a display similar to black. When this display element is in the open state, if an optical filter is attached to the inside of the aperture 6 to display a desired color, the concave surface 9b of the first curved wing-like member is colored with the same color, so that the outside is visible at night. It is possible to display an arbitrary color of emitted light even in the absence of light, and even if the fluorescent lamp 4 is not turned on during the day, the color of the filter and the color of the reflected light displayed by the concave surface 9b of the wing-like member can be differentiated by daylight alone. The contrast between the display color of the status display element and the display color of other display elements similar to black can be clearly displayed. This is because unlike the first proposal mentioned above, it is not a deep inside illumination method, and the light that has passed through the filter is reflected by the surface of the nearby concave mirror 10 or fluorescent lamp 4, and passes through the filter again to the observer. This is because the filter surface appears as a bright color display even with daylight alone because it returns to the side. Further, in the embodiment of this second proposal, a light diffusing member 13 is arranged inside the mask 7 to reduce the excessively bright flash of light seen directly from the fluorescent lamp 4 or through a filter, as shown in FIG. The device is also described in the above publication.

The problem with this second proposed display device is that the intensity of the light that is seen almost directly into the fluorescent lamp lighting equipment, and the intensity of the light of the fluorescent lamp that is almost closely behind the light diffusion member through the light diffusion member, is too bright. The problem is that the size of the display element cannot be made smaller because it is related to the diameter of the fluorescent lamp, so the mosaic pattern display becomes rough and there is less freedom of expression, and it is difficult to install fluorescent lamp lighting equipment. In addition, costs increased due to an increase in lighting equipment.

Therefore, as in the display device according to the first proposal in the above-mentioned publication, the present invention uses a low power consumption lighting device such as a fluorescent lamp to replace the internal illumination light source that is shared with many display elements inside each display element behind the display device. Even if the wing-shaped member is arranged in the second proposed technique, the illumination up to the wing-shaped member can be done as a brightly illuminated display surface of the wing-shaped member without feeling the flash of fluorescent light, and the display screen can be illuminated. The continuity of the pattern has been improved, and the display has good contrast during the day, even when the internal lighting is not on, and the display has good contrast even when the internal lighting is on at night, and the size of the display element has also been made comparable to that of fluorescent lamps. This solves the problems of the first and second proposed techniques described in the above-mentioned publication, such as not being affected by the diameter of the tube.

The first embodiment of the present invention will be explained with reference to the drawings.
Figures 7 and 8 are a cross-sectional, front, and longitudinal side view depicting two display elements of the display device of this embodiment. In this embodiment display device, an iron bar 5 having main magnetic poles 5a in front is arranged at intervals corresponding to the vertical and horizontal intervals of display elements, and the main magnetic poles 5a are placed on the back side of a transparent plastic substrate 14. A large number of auxiliary magnetic poles 5b are embedded and fixed in the auxiliary magnetic poles 5b, and are arranged in the intermediate position between the main magnetic poles of the adjacent display elements arranged in the horizontal direction, and the front ends of the auxiliary magnetic poles 5b are A large number of iron rods 5 protruding from the surface of the substrate 14 are embedded and fixed in the substrate 14 while protruding from the back side of the substrate and are arranged vertically and horizontally, and the main magnetic poles 5a and auxiliary magnetic poles are arranged alternately in the left and right horizontal directions. The rear ends of each iron bar 5 in the row of iron bars 5b each having a front iron rod 5b are magnetically connected to each other by a yoke iron material 5' having a U-shaped cross section, and a comb-like high permeability magnetic field connected by this yoke iron material 5' It is an electromagnetic means in which the conductor 20 is wired in a braided or entwined manner in the circuit. The manner in which the conductors 20 are woven or intertwined is performed in relation to the desired display pixel state of each display element.
Select whether to have 0b, wire it, and connect it electrically to 1.
By passing a current through the conductor 20a, which has become a body, in the direction shown by the arrow in the figure, the main magnetic pole of the display element on the left becomes the N pole, and the main magnetic pole of the display element on the right becomes the N pole, as shown in FIG. In the case of the weaving method in which the S pole is excited and magnetized, or in the case of the interlocking method, the left and right display can be made by passing current in the direction shown by the dotted arrow through the conductor 20c wound around each iron core 5 having the main magnetic pole 5a. A plurality of conductors 2 corresponding to a plurality of desired display screens are continuously wired to the iron cores of all display elements of the display device in such a way that the main magnetic poles 5a of the elements are both excited and magnetized to the north pole.
One desired display screen pattern can be displayed by passing a current through one of the conductors.

One slope is a first slope so that the vertically long rectangular area 14a located near the left and right center line of one display element of the substrate 14 including the main magnetic poles 5a arranged in the vertical direction is a valley surface.
The display color is green G (indicated by diagonal lines in the figure) for the display element on the right side of the drawing, and red R (indicated by vertical stripes in the figure) for the display element on the left side. 1 fixed display board 15, the slope on the opposite side has a white surface W for both the left and right display elements in the drawing as a second display color with high brightness on its front side 16a, and a white color W on the back side 16b of the display element on the right side in the drawing. A second fixed display board 16 made of plastic having a high-intensity reflective surface colored fluorescent red LR in the case of the display element on the left, and fluorescent green LG in the case of the display element on the left, and these two fixed display boards 15 , 16 are joined to both left and right ends of the vertically long rectangular area 14a of the substrate in a V-shape at opening angles of 45 degrees with respect to the front. In addition, in relation to the horizontally adjacent display elements of each fixed display plate, the outer side of the first fixed display plate 15 (G) of the display element on the right side of the figure and the second fixed display element of the display element on the left side of the figure The outer side of the first fixed display plate (R) 15 of the display element on the left side of the figure is joined to the outer side of the plate 16, and the outer side of the second fixed display plate 16 of the display element further to the left (not shown) is joined. The fixed display plates of adjacent display elements are bonded one after another at their outer edges to form chevron-shaped display surfaces. Further, the fixed display plates 15 and 16 of the vertical and horizontal display elements are continuously integrated and formed. On the other hand, a bearing 21 located on a perpendicular line on the front side of the left and right center line of the vertically long rectangular area 14a of the board is rotatably movable to two positions so as to cover the first and second fixed display boards; A large number of wing-shaped members 17 each having one side pivotally supported so as to be rotatable around a pivot shaft 19 parallel to the center line of the vertically long rectangular area are provided for each display element, and the wing-shaped members 17 are connected to the second fixed display panel. The wing-shaped member 17 covers the surface of the wing-shaped member 17 that is exposed on the front side in the first state so as to cover the white surface of the wing-shaped member 16.
The color of the first fixed display plate 15 facing each other at an angle of 15° is the same color as the color of the light-transmitting and diffusive plastic, that is, green G for the display element on the right side of the figure (indicated by diagonal lines in the figure). In this case, it is colored red R (indicated by vertical stripes in the figure), and is exposed to the front side in the second state in which the wing-like member 17 is positioned so as to cover the first fixed display board 15. The surfaces of the wing-shaped member 17 in which each display element is located are colored white W, and the wing-shaped member 1 is located in the second state.
7 faces each other at an angle of approximately 95°.
In cooperation with the white display surface, external light can be used to display a white color. On the other hand, near one side of the wing-shaped member 17 on the rotation center side, a permanent magnet 18 whose magnetic axis is perpendicular to the display surface is attached so as to face the main magnetic pole 5a of the electromagnetic means. Although not shown, several fluorescent lighting fixtures are arranged at appropriate intervals behind the large number of display elements having the above configuration.

The display conversion effect of one display element having such a configuration is described in the ninth section.
To explain with a diagram, when the main magnetic pole 5a in the vertically elongated rectangular area 14a is magnetized to become the north pole, it is assumed that the wing-shaped member 17 was positioned to cover the second fixed display plate 16 until just before magnetization. As shown by the solid line in FIG. 9 at the moment of magnetization, the N pole of the permanent magnet 18 attached near the center of rotation of the wing-shaped member 17 was approaching diagonally to the side of the main magnetic pole 5a, which was magnetized at the N pole. On the other hand, the resultant force Fn of the repulsive force acting between the N pole of the main magnetic pole and the attractive force acting between the S pole of the auxiliary magnetic pole is applied to the wing-like member 17 as shown by the arrow. It acts as a force in a direction almost parallel to the display surface, and also acts on the S pole of the permanent magnet with an attractive force between it and the N pole of the main magnetic pole and with other magnetic poles. The resultant force Fs of the magnetic force acting on the magnetic force acts as shown by the arrow, so that the wing-like member 17 is rotated around the pivot shaft 19 in the direction shown by the arrow, and the wing-like member 17 is rotated to the position shown by the two-dot chain line in the figure. When rotates, the resultant force Fn of the magnetic force acting on the north pole of the permanent magnet and the resultant force Fs of the magnetic force acting on the south pole of the permanent magnet both act as a force in a direction substantially parallel to the display surface of the wing-shaped member 17. Then, the wing-shaped member 17 is accelerated and rotated, and when the wing-shaped member 17 reaches a position covering the first fixed display plate 15 as shown in the display element on the left side of FIG. 6, the N pole of the main magnetic pole 5a is and the magnetic force Fs acting on the S pole of the permanent magnet, and the resultant force Fn of the attractive force and other magnetic forces acting on the S pole of the auxiliary magnetic pole 5b and the N pole of the permanent magnet.
As a result, the wing-like member 17 is pressed against the first fixed display board 15 and stabilized. If the wing-like member 17, which is stable as shown in FIG. 6, is to be reversely moved in the opposite direction, the current is turned off to the conductor 20a that has been energized until now, and the current is transferred to another conductor 20b as shown in FIG. By energizing in the current direction indicated by the two-dot chain arrow, the main magnetic pole on the left side is converted to an S pole, and the main magnetic pole on the right side is converted to an N pole.The above-mentioned action causes the wing-like member 17 to be turned to the opposite side. It can be reversed and moved to a position where it hits the fixed display board.

The magnetic drive means of the present invention is characterized by the wing-shaped member 1 of the present invention.
7 has a narrow reversal angle of about 90°, unlike the wide reversal angle of conventional wing-shaped members, and when the wing-shaped member 17 is in a stable position, it is attached to the wing-shaped member diagonally beside the main magnetic pole 5a. This is because the magnetic poles of the permanent magnets 18 are close to each other.

With this configuration, during the movement of the wing-like member 17 as shown in FIG. Since the rotational driving force acts evenly during rotation, it operates reliably even when wind and rain directly hit the wing-like member, and the magnetic poles of the permanent magnets 18 attached to the wing member 17 of the present invention The fact that the direction of the magnetic force acting on the wing member is substantially parallel to the display surface of the wing-shaped member is that
It was also possible to produce the effect that the shadow of the main magnetic pole 5a can be eliminated on the display surface of a color transmissive and diffusive material such as a fixed display board. This is because the vertically long rectangular area 14a of the substrate including the main magnetic pole 5a of the present invention is covered by the wing-like member 17 during the two types of display, so that it has no relation to the display; Main magnetic pole 5
In order to transmit the magnetic driving force from a to the permanent magnet 18, a magnetic means that generates a magnetic force parallel to the display surface of the wing-shaped member 17 is essential.

Furthermore, the magnetic means of the invention includes the previously mentioned permanent magnet 18.
There is a protruding configuration of the auxiliary magnetic pole 5b that helps increase the magnetic force acting on the magnetic pole. Focusing on the fact that since the display device of the present invention has a mountain-shaped display surface, the auxiliary magnetic pole 5b does not damage the appearance even if it protrudes to the front side compared to the conventionally known display device, the tip position of the auxiliary magnetic pole 5b is set as follows. By extending it to near the inside of the peak of the chevron-shaped display surface formed by the two fixed display plates 15 and 16, the flow of the magnetic lines of force drawn by the thin lines in FIG. 6 can be balanced, and the magnetic resistance can be reduced. By reducing the number of lines of magnetic force and increasing the number of lines of magnetic force, it also has the characteristic of efficiently operating with less electric power to obtain power. The role of this auxiliary magnetic pole 5b will be explained with reference to FIG. When current is passed through the conductor 20a of the electromagnetic means in the direction indicated by the arrow in the figure, the main magnetic poles 5a of the left and right display elements are divided into N and S poles and magnetized, and the auxiliary magnetic pole shown in the center of the figure 5b is neutral, and the lines of magnetic force come out from the N pole of the left main magnetic pole and are absorbed by the S pole of the right main magnetic pole, and the lines of magnetic force pass through the permanent magnets 18 attached to each wing-shaped member on the way. passes around the auxiliary magnetic pole 5b in the center of the above figure,
Although some lines of magnetic force may float as part of the path, they pass toward the S pole of the main magnetic pole on the right side without being absorbed. However, although not shown, if the main magnetic pole of the display element adjacent to the right side of the two display elements shown in FIG. 6 is the S pole, and the main magnetic pole of the display element adjacent to the left side is the N pole, The auxiliary magnetic pole 5b on the right edge in the figure, which is on the boundary line between adjacent display elements on the right side, becomes the N pole, and the auxiliary magnetic pole 5b on the left edge in the figure, on the boundary line between adjacent display elements on the left side, becomes the N pole. becomes the south pole and absorbs the lines of magnetic force coming out from each main magnetic pole 5a, or conversely emits the lines of magnetic force that are absorbed by each main magnetic pole 5a, creating a more balanced path for the lines of magnetic force than in conventional electromagnets of this type. At the same time, the permanent magnet 1 can be connected from the auxiliary magnetic pole 5b.
The magnetic force acting on the magnet 8 is added to the magnetic force acting between the main pole and the permanent magnet to obtain a stronger driving force.

The present invention, which provides a distinctive display effect to be described later, operates even when the auxiliary magnetic pole is located near the same surface as the substrate 14, like a conventionally known auxiliary magnetic pole, instead of the auxiliary magnetic pole having the protruding structure. You can make it work even if you don't have it. However, the present invention, which is characterized by magnetic means, takes advantage of the chevron-shaped display surface structure of the display device as described above to more efficiently generate a driving force that is even during rotation.

Next, the display function of the display device according to the first embodiment of the present invention will be described. The right side display element in FIG. 6 displays most of the element display area in green due to the light of the internal illumination. Because the wing-shaped member 17 is stable when it is tilted toward the second fixed display plate 16, the inside of the first fixed display plate 15 is colored green and diffused through the plastic that has a color transmitting and diffusing effect. Fluorescent green color excited by the transmitted light of the illumination light and the light from the internal fluorescent lamp hitting the fluorescent green paint surface painted on the back side 16b of the second fixed display board 16 of the display element on the left. Displayed by reflected light from the display surface of the wing-shaped member 17 caused by the reflected light of the LG being diffused through the plastic of the first fixed display plate 15 and illuminating the green G colored surface of the wing-shaped member 17. It is something that exists.

Although the transmitted light varies depending on the degree of light diffusion of the first fixed display plate 15, reflected fluorescent green light from the back side 16b of the second fixed display plate is diffused by the first fixed display plate 15 and observed. Instead of the light reaching the display surface of the wing-shaped member 17, the light from the internal illumination fluorescent lamp directly strikes the first fixed display board 15, is transmitted and diffused, and reaches the display surface of the wing-shaped member. Also includes. The thin line arrows in the figure indicate the path of light when it is assumed that the first fixed display board 15 is formed of a green transparent plastic plate with no light diffusivity. In this case, if the substrate 14 is a transparent body, if there is a fluorescent lamp behind the right display element, you will see its flash, and if there is no fluorescent lamp directly behind it, a dark display will be displayed as the first fixed display. Since the image is viewed through the plate 15, the brightness of the display surface of the display device is not uniform.

However, in the present invention, the first fixed display plate of the first embodiment is formed of a colored light-transmitting material that has no light-diffusing property or a slight light-diffusing property, and the substrate 14 is formed of a light-transmitting and diffusing material. It can also be implemented by forming it from a milky white translucent plastic.

Next, to explain the display element on the left side of FIG. 6, since the wing-like member 17 is laid down so as to cover the first fixed display plate 15 having the color transmissive and diffusive property of red R, diffused radiation is emitted from that surface. The white W surface exposed on the front side of the wing-shaped member 17 and the white W surface 16a of the second fixed display board 16 cooperate to display a white color by external light. There is. Further, even when the wing-like members 17 of the right display element are folded and overlapped to block the green light of the first fixed display plate 15 (G), white display is performed using external light by the same cooperative display effect as described above. Next, when the wing-shaped members 17 of the left and right display elements are both positioned so as to cover the second fixed display plate 16, the right display element performs a green luminescent display using internal illumination light as described above, and the left The display element has a luminescent red display surface generated by illumination of the red R colored surface of the wing-shaped member 17 by reflected light of the fluorescent red LR from the back side of the second fixed display plate of the display element adjacent to the left (not shown), and the first display element. A bright red light emitting display is performed in cooperation with the display surface of the fixed display plate 15 (R) from which the red light-transmitting diffused light is emitted. In this case, when the display colors of the display elements arranged adjacent to each other in the horizontal direction are alternately brightly displayed as red, green, red, and green, the display appears yellow when viewed from a distance. This fact is applicable to the patent application published in 1983-132296 filed by the present applicant.
As stated in the published patent publication No.

FIG. 10 is a front view of a portion of a display device in which a large number of the display elements of the above-mentioned embodiments are installed, and shows a state in which the internal lighting is turned off during the daytime and display is performed using only external light. It is customary to turn off the internal lighting of signboards during the day from the standpoint of saving energy and savings, but it is important to provide a clear display at that time, along with the ease of seeing the display at night with only internal lighting without external light. To explain the present invention, which is characterized by is twice the width, and shows a display device according to an embodiment of the present invention in which pairs of green and red display elements are arranged vertically and horizontally as square units.

When the internal illumination of this display device is turned off and display is performed using only external daylight, most of the external light applied to the first fixed display plate 15 of each display element is colored in green or red, which has color transmissive and diffusive properties. The irradiated light passes through the inside of the plastic and irradiates the inside of the machine frame where the deep lighting equipment is housed, and most of the irradiated light passes through the first fixed display board 15 of each display element again and is not radiated to the outside. Since a portion of the light is absorbed inside, a dark color display is produced where only the surface color is reflected due to the light diffusivity of the first fixed display plate 15 due to the external light.

Therefore, although the green or red display on the wing-shaped member 17 is brightly displayed by external light, the first fixed display board display that cooperates with it is dark, so that the display element cannot display green or red with a slightly dim brightness. Become. Meanwhile, when the wing-shaped member 17 is positioned on the first fixed display plate 15, the white color displayed cooperatively by the second fixed display plate front side 16a and the wing-shaped member 17 is displayed at maximum brightness due to external light.

The letter K on the left side of Fig. 10 is made by arranging the above-mentioned pairs of element units in a K-shaped arrangement to display the white color, and arrange the other display elements to display the green and red colors described above. This is what I did. The letter G in the center of Figure 10 is formed by only every other display element responsible for green, the letter R to the right of it is formed only by display elements responsible for red, and the letter Y on the right side of Figure 10 is formed by only display elements responsible for red. The letter G is a set of three display elements with red sandwiched in between and green on both sides arranged in a Y-shape.
, R, and Y are formed by a group of display elements that display white. The green and red colors have a good contrast with the white background color and are easy to see, so they are used in various conventional display devices. A feature of the present invention is that it provides a different display effect at night using only internal illumination while maintaining good display contrast during the day. In outdoor signboards, there is very little external light at night, and unless a spotlight is shined on each of the white display elements, the wing-shaped member 17 blocks the light from the internal illumination, resulting in a dark display. Each of the display elements for green and red display displays a bright luminescent color. Then, the brightness contrast in Figure 10 is reversed, and when viewed from a distance, the K on the left side of the figure displays a dark K in the bright yellow luminous background color, and the G in the figure, The letters R and Y can each be displayed in green, red, and red-green luminescent colors to form neon signs in the dark. As described above, the present invention has the feature that it is possible to display a signboard with a different image depending on the daytime and nighttime atmosphere according to the atmosphere of the daytime and nighttime.

The present invention provides the same display effect even when the white display by daylight is performed by the cooperative display of the second fixed display plate front surface 16b and the wing-shaped member 17 in a highly bright color such as pale sky blue or yellow. In addition, the display elements responsible for displaying the green and red luminescent colors in the above embodiment can both be used to display the blue luminescent color, thereby avoiding the expression of mixed colors as described above. .

Next, a second embodiment of the present invention will be described with reference to FIGS. 11 to 14. FIGS. 12 to 14 are a cross-sectional plane, a front view, and a vertical cross-sectional side view depicting two display elements. In this embodiment display device, the main magnetic poles 5a are mounted on a transparent plastic substrate 14 such that one main magnetic pole 5a is disposed within a vertically elongated rectangular area 14a of the substrate located near the left and right center line of each display element.
a semi-hard magnetic material iron rod 5h embedded and fixed therein, and a soft magnetic material in which an auxiliary magnetic pole 5b is embedded and fixed in the substrate 14 within a vertically long rectangular area 14a of the substrate at an intermediate position between the various magnetic poles 5a arranged in the vertical direction. The iron manufacturing rods 5 are juxtaposed to protrude from the back side of the substrate 14, and each iron rod 5h arranged vertically,
5 are magnetically connected by a yoke iron material 5' made of a soft magnetic material having a U-shaped cross section, and a plurality of comb-like high permeability magnetic lines connected by the yoke iron material 5' are connected. The conductors 20 are arranged in a weaving manner, and the first
A plurality of conductors 20 are densely wired like a fabric in the same manner as described for the positional relationship and excitation direction relationship between the conductor 20 and the iron rod 5 in FIG. 6 in the embodiment. By using these plurality of conductors 20, a plurality of screens are memorized by the position of the conductor wiring, and by passing a current through one of the plurality of conductors 20, all the display elements are adjusted according to the pixel display of the desired screen. The screen is selectively displayed, and one screen with a mosaic pattern is displayed as a display device.

Furthermore, in this embodiment, in addition to the method of storing a plurality of screens using a plurality of conductor wirings as described above, the iron bar 5h at the intersection of This method also uses a selective magnetization method.

To explain this, y conductors 20y for Y-axis designated wiring.
The conductors 20x for the X-axis designated wiring are wired in horizontal rows while being wound once around the iron rods 5h made of semi-hard magnetic material having the main magnetic poles 5a in each horizontal arrangement, and the x conductors 20x for X-axis designated wiring are connected to The wires are wired in a vertical manner, each winding once around an iron rod 5h having a magnetic pole 5a.

Before operating the excitation means with this configuration, first, a pulse current is passed through one conductor 20d for single color display (no display) in the method of displaying a plurality of desired screens using the plurality of conductors 20 described above. , the plurality of main magnetic poles 5a are all magnetized to become S poles. At that time, all of the many auxiliary magnetic poles 5b are N poles. Next, the X axis,
By selectively passing a pulse current through the conductors in each row of the Y-axis wiring rows, the coercive force (Hc
), the residual magnetization direction of the iron bar 5h at the intersection point is changed, and the polarity of the main magnetic pole 5a of the iron rod 5h is reversed from the S pole to the N pole. The main magnetic pole 5a at the intersection of the selected wiring lines in the first vertical column and the first horizontal column.
The polarity can be determined selectively.

Although the technique of cross-point selective magnetization using the aforementioned row and column-wound wiring conductors for a large number of magnetic bodies disposed opposite to a display body with permanent magnets is well known, the present invention provides an easy-to-understand method as well as a means requiring an external memory device. The above-described conductor wiring position memorization method that allows display contents to be easily added is characterized in that means for simultaneously selectively magnetizing the polarities of the main magnetic poles of all display elements is used.

Signboards in stores and other places are required to change the displayed content irregularly, but in this case, it is necessary to create a complicated program to rewrite the information using a computer, or to add or change the memory content using a display device to confirm input. By connecting and wiring the winding direction of the conductor around the iron bars 5 and 5h that stand on the back side of the display device in relation to the pixel display, for example, "Today's sale is on sale" can be done without expensive and difficult to understand operations. By writing characters such as ``日'' on the wire and passing a pulse current through the conductor, the catchphrase can be displayed.
With this method, existing moving image patterns mass-produced and inputted from a memory device are displayed one after another at a rate of 10 frames per second, thereby making it possible to display attractions that attract people. If you use random access memory such as LSI, which has recently increased storage capacity, you can mass-produce many frame screens for displaying video in a short time (
Since the data can be input (recorded) and stored, the combined use of the XY method will become more effective as the price of electronic devices decreases.

By using such a combined means, the present invention allows individual stores or local sign companies to easily add store names and catchphrases using easy-to-understand conductor writing wiring without having to touch expensive and difficult-to-understand computer input devices.
In addition to being able to change the display, the video display is performed using the XY method described above, which is operated by an inexpensive external memory device because it is a ready-made program. By using both methods in combination, it is possible to display desired displays of various shops and reduce costs due to mass production effects. When used in conjunction with video display, it is possible to create billboards with great advertising effects by drawing attention to the video and then advertising.

Next, the second aspect of the present invention, which is characterized by the display effect due to internal lighting.
The configuration of the display section of the embodiment will be explained.

This is so that the vertically long rectangular area 14a of the substrate 14 is a valley surface, and one slope is the first display color, and the display element on the right side of FIG. 12 is green (G), and the display element on the left side is red (R).
The first fixed display plate 15 is made of plastic and has a light-transmitting and diffusing function, and the slope on the opposite side serves as the second display color for both display elements on the left and right sides of FIG. 12, and for all display elements other than both display elements. The display element is a milky white (W') second fixed display plate 16' made of plastic with a light-transmitting and diffusing effect, and these two fixed display plates 15 and 16' are arranged at an angle of 38 degrees with respect to the front.
They are joined to both left and right sides of the vertically long rectangular area 14a of the substrate 14 at different opening angles in a figure eight shape. Also, in relation to horizontally adjacent display elements, the first display element on the right side of the figure
The outer side of the fixed display plate 15 (G) and the outer side of the second fixed display plate 16'(W') of the display element on the left side of the figure are perpendicular to the surface of the substrate 14 on the boundary line between the left and right display elements. The double-sided reflective plates 22 made of aluminum vapor-deposited transparent plastic are sandwiched between the two fixed display plates 15, and are bonded to each other on the boundary line of each display element arranged in the horizontal direction.
The double-sided reflective plate 22 partitions each display element while joining the outer side of the display element 16'.

Further, in relation to the vertical direction, the fixed display plates 15, 16' and the double-sided reflector 22 of each of the vertically arranged display elements are continuously integrated and formed, and each of the iron bars of each of the vertically arranged display elements is formed in a continuous manner. 5. Aluminum vapor-deposited polyester adhesive tape reflective material 2 is applied to both left and right sides of a woven conductor group consisting of a plurality of conductors 20 which are continuously knitted or entwined in the vertical direction in 5h.
3 is attached. On the other hand, a wing-shaped member 17, one side of which is pivotally supported on the front side of the center line of the vertically long rectangular area 14a of the substrate, connects the vertically long rectangular area 14a and the second
The surface of the wing-shaped member 17 that is exposed to the front side in the first state where it is positioned so as to cover the fixed display plate 16' is covered by the first wing-shaped member facing at an angle of about 83°. Each display in the horizontal direction is colored the same color as the fixed display board 15 and the color of the light-diffusing plastic, green G for the wing-shaped member of the display element on the right side of the figure, and red R for the wing-shaped member of the display element on the left side of the figure. The elements are colored by alternating hues, and
In the second state in which the wing-shaped member 17 is positioned so as to cover the vertically elongated rectangular area and the first fixed display plate 15, the surface of the wing-shaped member 17 that is exposed on the front side is shared with each display element. All are colored white (W).

In such a second embodiment, it is not possible to perform a dark display at night when there is no external light as in the first embodiment. This is because the light emitted from the shared internal lighting equipment of each display element behind this display device passes through either the first or second fixed display plate of the display element and comes out to the front side. , the display device has the characteristic that the display surface is displayed brightly over the entire surface.

To explain this in detail, in the case of the display element on the right side of FIG. The transmitted and diffused light of the internal illumination light colored green and diffused through the green light-transmitting and diffusive plastic of the plate 15 (G), and the wing-shaped member 17 that receives a part of the transmitted and diffused light. The observer sees the green reflected light from the display surface, and in the case of the display element on the left side of the figure, the wing-shaped member 1
7 is tilted toward the first fixed display board 15 side and is stable.
In this state, the white transmitted diffused light of the internal illumination light that has passed through the milky-white translucent diffusive plastic of the second fixed display plate 16'(W') and the wing-shaped portion irradiated with the transmitted diffused light The observer sees the white reflected light from the display surface of the member 17, and the vertically long rectangular area 14a of the substrate
Since both of the second states are covered by the wing-like member 17, an observer looking at the display element from the front can see most of the surface of the display element as a bright display surface.

When the wing-like members 17 of the left and right display elements in FIG.
The display element on the left side enters the first state and displays red light. In this way, at night, when there is no external light, each display element emits red light, white light, green light, or white light, so that it is different from the daytime display of the first embodiment shown in FIG. The same display color pattern using external light of white, green, and red can be displayed at night as a white, green, and red three-emission color pattern that feels even brighter overall. However, when the internal illumination is eliminated during the daytime and the display is performed using only external light, the external light is absorbed into the device through the milky white translucent diffusive plastic of the second fixed display plate 16' of the display element in the second state. Therefore, the display surface of the second fixed display board becomes a dark white gray, and when viewed as a display element, since the white display surface of the wing-like member 17 is bright, the display surface of the second fixed display board becomes a slightly dark white gray as a whole, so that the second state is displayed. The brightness of the element due only to daytime external light is darker than in the first embodiment, and the contrast with other display elements in the first state is poor.

In the case of this example, the display effect could be improved by one more characteristic invention. It is a double-sided reflective plate 22 located on the boundary line of each display element, and in FIG. 12, L1
To explain this with reference to the path of the internal illumination light indicated by the arrow line, the light L1 that hits the first fixed display board 15 of the display element on the right side is diffused with the surface reflected light L2 of the plastic surface of the fixed display board 15. The light is divided into reflected light and transmitted diffused light L3. In this case, in cooperation with the diffusely reflected light having the same direction component as the traveling direction of the surface reflected light L2, the light hitting the double-sided reflector 22 travels along the optical path indicated by the specularly reflected light L4 reflected by the mirror surface. It will hit the first fixed display board 15 again. Here again, while the above-mentioned reflection and transmission effects occur, part of the internal illumination light returns to the machine frame where the lighting equipment of the display device is set, and the other part is transmitted and diffused to the front side. become. The feature of the present invention is that the surface reflected light indicated by L2 and the L2 direction component of the diffused reflected light are not applied to the second fixed display plate 16' of the adjacent display element, and are used to display the white light emission of the adjacent display element. The surface reflector plate 22 is used to prevent the green component from being mixed, and to reflect the light in the direction of illuminating the wing-like member 17, thereby displaying the surface of the wing-like member brightly in green.

Next, the present invention described in this embodiment also applies to the first embodiment, and is a necessary configuration for a magnetically driven display device having internal illumination.

As shown in the figures showing the first and second embodiments, and especially as shown in FIG. A row of iron bars 5 and 5h held in front is attached to a yoke iron material 5' whose projected area on the surface of the substrate 14 is sufficiently smaller than the area of the substrate.
In particular, in the second embodiment, a fabric-like conductor group in which a large number of conductors 20 are wired in a weaving or entwining manner with each iron bar 5, 5h has a structure in which the conductors 20 are connected magnetically. L5 in Fig. 12 is attached with material 23.
The internal illumination light shown in is reflected by hitting the surface of the aluminum-deposited polyester adhesive tape as the light intensity reflecting material 23, passes through the reflected light path L6 and hits the double-sided reflector 22, and then the second fixed display is displayed. The wing-shaped member 17 is brightly illuminated by the above-mentioned action when it hits the plate 16', and the second
The light is emitted as diffused light from the fixed display plate 16', and the entire display element can be displayed in white light.

In the case of the second embodiment, the yoke iron material 5' of the present invention can be easily attached and detached from the rows of iron bars 5 and 5h to facilitate the writing wiring of the conductor 20 described above when adding a desired display screen. It looks like this.

The first and second fixed display plates 15 and 16' of the second embodiment
The reason why the fixed display board opens at an opening angle of 76° with the opening angle of 38° on each side relative to the front, which is narrower than the fixed display board opening angle of 90° in the first embodiment, is as follows. This is to increase the amount of diffused light received by the wing-shaped member 17 of the second embodiment and coming from the fixed display plate facing each other at an angle of 83°, and to display the wing-shaped member 17 brightly.
The present invention is implemented by optimally designing the opening angle of the fixed display plates in conjunction with the design of the degree of light diffusion of the first and second fixed display plates 15 and 16'.

Also, in the second embodiment, as in the first embodiment, the first and second fixed display plates 15 and 16' are formed of a material that does not have light diffusivity or is transparent with a small amount of color. In addition, the substrate 14 may be made of ABS resin, which is a milky-white translucent plastic material with light diffusing properties, and the reflective surface of the double-sided reflective plate 22 may also be made of fluorescent paint in addition to the mirror surface. It can be implemented by using a high-light reflecting surface such as a colored surface or a white surface.

Next, a third embodiment of the present invention will be described with reference to FIGS. 15-18. FIGS. 15-17 are a cross-sectional, front, and longitudinal side view depicting four display elements of this embodiment. The electromagnetic means among the magnetic means of this embodiment is such that two magnetic poles 5c of a U-shaped iron core 5h' made of a semi-hard magnetic material are connected to a vertically long rectangular substrate near the vertical center line of one display element. The magnetic poles are disposed in the region 14a so as to face the front, and each display element has an independent electromagnetic means. By passing a positive or negative pulse current through the conductor 20' wound around the electromagnetic core 5h', residual magnetism in the positive or reverse direction can be generated in the core 5h'.

On the other hand, on both left and right sides of the vertically long rectangular area 14a of the substrate,
A first stationary display plate 15 with a light transmitting and diffusing property of green G and a second stationary display plate 16' having a color transmitting and diffusing property of pink P are placed facing each other at an opening angle of 50°. It is joined to the substrate 14 in an open figure-eight arrangement. Regarding the relationship between display elements arranged in the horizontal direction, the relationship between adjacent display elements is as follows.
The left-right arrangement of green G and pink P is reversed, and the first fixed display plates of green G of adjacent display elements are joined at their outer sides, and the first fixed display plates of green G of adjacent display elements are joined together at their outer sides. Second
The fixed display boards are also joined at their outer edges, and in the relationship between display elements arranged in the vertical direction, each fixed display board is continuously integrated, forming a chevron-shaped display surface with both slopes of the same color, green. G and pink P are arranged in parallel in an alternating manner and extend in the vertical direction.

On the other hand, a wing-shaped member 17', in which a shaft portion protruding from the upper and lower portions of one side is pivotally supported by a bearing 21 provided on the front side on the center line of the vertically long rectangular area 14a of the substrate, is made of a plastic film whose front and back surfaces are mirror-finished. At the same time, two permanent magnets 18 are mounted near the center of rotation of the wing-like member 17' so as to face and close to the two magnets 5c so that their magnetic axes are perpendicular to the mirror surface of the wing-like member. The structure is as follows.

One feature of this embodiment is that it employs independent electromagnetic means in which two magnetic fields 5c are arranged in a vertically long rectangular area of the substrate that is unrelated to the display surface, and that two permanent magnets 18 are connected to the wing-shaped member. By the magnetic force acting in a direction substantially parallel to the mirror surface of the wing-shaped member 17', twice the driving force and stabilizing force of the second embodiment can be obtained under the same conditions. The arrangement of the electromagnet core 5h' on the back side of the substrate 14 is such that when the display device is internally illuminated from behind, the electromagnet core 5h' is arranged in a position where the presence of the electromagnet core 5h' is unlikely to affect the external radiation effect of the internal illumination. This eliminates the shadow of the iron core 5h'.

The next feature of this embodiment is that the first and second fixed display plates 15
, 16' are arranged alternately with adjacent display elements arranged on the left and right, so that the double-sided reflector 22 as explained in the second embodiment is not used. This also eliminates the fear of color mixing. However, unlike the second embodiment, it is not possible to display three colors, red, green, and white, but only two colors, green and pink.

The next feature of this embodiment is that the first and second fixed display plates have a narrow opening angle of 50 degrees, and the front and back surfaces of the wing-shaped member 17' are mirror-finished. It is. With this configuration, when the wing-shaped member 17' falls down so as to cover the first fixed display board 15 and the vertically elongated rectangular area 14a and block green light, the mirror surface of the wing-shaped member 17' The second fixed display plate 16' is visible.

This means that the second fixed display plate 16' receives pink diffusely reflected light due to external light, pink diffused emitted light due to internal illumination, or a mixture thereof. This is due to the specular reflection caused by the mirror surface exposed on the front side. Generally, a mirror surface has a good reflectance, so there is almost no difference in brightness between the left and right sides of the display element, regardless of whether it is external light or internal illumination, and it has the characteristic of providing a bright display. When the wing-like member 17' is reversed to the opposite side, the first fixed display plate 15, which emits green diffusely reflected light or diffused radiation light, is reflected and displayed by the mirror surface on the back side of the mirror surface of the wing-like member. At the same time, pink light is blocked.

The disadvantage of this embodiment is that when viewed obliquely from the side, the wing-like member 17'
As a countermeasure to this problem, it is necessary to narrow the opening angle of the two fixed display plates 15 and 16' to 50 degrees or less. Or when viewed diagonally from below, A in Figure 18
The problem was that the shape of the display element looked like an arrow feather, as shown in Figure 2, and the continuity of the display pattern became blurred.

Therefore, the present invention solves this problem by giving the partition mirror plate 24 a unique structure.

This is done on the boundary line between the display elements arranged vertically in this third embodiment, between the first and second fixed display plates 15 and 1.
A partition mirror plate 24 with mirror surfaces on both sides that partitions an open space of 6'
In the figure, it is shown as a separate member from the bearing 21, but it can also be made into an integral injection molded product and made into a mirror surface by vacuum evaporation.

Furthermore, the signboard can be installed in a high place without making only the top surface a mirror surface, which may become contaminated with dust.

Substrate 1 in the description of the first, second and third embodiments of the present invention
4 materials: By using a transparent or translucent plastic flat plate such as polycarbonate or hard vinyl chloride, holes for embedding and fixing many iron rods 5, 5h, and iron cores 5h' can be simultaneously and accurately placed using a press machine. The iron rods 5, 5h can be manufactured at low cost because they can be opened, can be press-fitted with appropriate pressure due to the elasticity of plastic when press-fitting the iron rods, are easy to assemble, and have a reliable holding power. I was able to install the iron core 5h'.

Alternatively, the substrate 14 may be made of an opaque non-magnetic metal plate instead of plastic, and a light-transmitting opening may be provided in the area excluding the vicinity of the vertically long rectangular area 14a. It is also possible to use a lattice-like frame structure instead of a lattice frame structure.

Further, the present invention can be implemented by using the reflective surface of the second fixed display plate back side 16b of the first embodiment as a reflective surface of a brightly reflective color such as white, or a mirror surface.

As described above, the present invention has the advantage that even if internal illumination is provided by a lighting fixture such as a fluorescent lamp placed behind the display device so that many display elements arranged in columns and rows share the internal illumination, the display elements It is possible to change the luminescent color and blink at a moderate brightness on most display surfaces, and it is possible to display a display with good contrast even when the internal lighting is turned off during the day. When used for advertising as an outdoor billboard that can be displayed at any time, it can be used for advertising by displaying it in conjunction with computer memory-generated animation, etc., and can achieve the advertising purpose of conveying information with a considerable attention effect, and even when used outdoors without a transparent cover, it consumes low power. It operates with high efficiency and can operate reliably with an even driving force against resistance such as wind and rain.The size of the display element can also be set freely, making it possible to apply it to small display devices. This invention uses a high-efficiency internal lighting system that eliminates shadows to reduce the number of fluorescent lamps used in the shared system, making it useful as a low-cost, energy-saving display device for advertising, traffic display, and public display. .

[Brief explanation of the drawing]

1 is a partially cutaway perspective view of the conventional display element in a first state, FIG. 2 is a perspective view of the display element in FIG. 1 in a second state, and FIG. 3 shows the display element in FIG. FIG. 4 is a perspective view of another conventional example of a set of two display devices, and FIG. 6 is a cross-sectional plan view taken along line A-A of a set of two display elements according to the first embodiment of the present invention, FIG. 7 is a front view of FIG. 6, and FIG. 8 is a B-B of FIG. -B longitudinal sectional side view, FIG. 9 is an enlarged cross-sectional plan view of the main part of FIG. 6, FIG. 10 is a partial front view of the display device according to the embodiment of the present invention, and FIG.
FIG. 12 is a cross-sectional plan view of FIG. 11, FIG. 13 is a front view of FIG. 11, and FIG. 14 is a longitudinal cross-section taken along line DD of FIG. 12. The side view, FIG. 15, is F-F of the one shown in FIG. 16 of the third embodiment of the present invention.
A cross-sectional plan view, FIG. 16 is a front view depicting four display elements of the third embodiment of the present invention, FIG. 17 is a vertical cross-sectional side view taken along line E-E in FIG. 15, and FIG. 18 is a third embodiment. FIG. 2 is a perspective view of two examples of example display elements indicated by A and B; 5...Electromagnetic iron bar, 14...Substrate, 15...First
Fixed display board, 16... Second fixed display board, 17... Wing-like member, 18... Permanent magnet, 20... Conductor, 22...
...Double-sided reflective plate, 24... Partition mirror plate. Patent applicant Kokusai Display Kogyo Co., Ltd.
Representative Tsunezo Ito

Claims (10)

[Claims] (1) It has a large number of display elements in columns and rows that convert displays by cooperative display between a fixed display board and a wing-shaped member that moves in reverse, and each display element has at least one magnetic pole and has a positive polarity. The electromagnet has a fixed side electromagnet means that can be selectively excited and magnetized in opposite polarity directions, and the electromagnet is located near the center of rotation of the wing-shaped member, with the direction of the magnetic axis perpendicular to the front and back surfaces of the wing-shaped member. In a display device having a rotating side magnetic means attached with at least one permanent magnet arranged opposite to the magnetic pole of the electromagnetic means, the magnetic pole of the electromagnetic means is
The device is placed along the vertical center line of a substrate for one display element with the magnetic pole facing the front, and two first and second sheets are arranged so that a vertically long rectangular area near the vertical center line of the substrate including the magnetic pole is a valley surface. 2. Place the fixed display board in a V-shape on both sides facing the front.
At least one of the two fixed display plates is formed of a translucent material through which illumination light from inside the device passes, and one side of the wing-like member is aligned with the vertical center of the vertically long rectangular area of the substrate. The wing-like member is rotatably supported around a pivot axis parallel to the front vertical center line, and moved by the electromagnetic means with the rotary side magnetic means to bring the wing-like member into a first stable position with respect to the vertically elongated rectangular area. and a second stable position covering the vertically elongated rectangular area and the second fixed display board;
A display device characterized in that a display surface of a display element is constituted by one of the second fixed display plates and one of the front and back surfaces of the wing-shaped member. (2) A first fixation of a first display color display in which one slope is formed of a light-transmitting and diffusive material of an arbitrary color so that the vicinity of the vertical center line of the substrate corresponding to one display element is a valley plane. The two fixed display boards of the display board and the second fixed display board having display color noodles whose slopes on the opposite side display the second display color are installed so as to be opened left and right in a V-shape in front of the display element. In addition, by making the inner side of the second fixed display plate a light intensity reflecting surface, when the wing-shaped member is located on the second fixed display plate, the second fixed display plate of the horizontally adjacent display element The reflected light of the illumination light from inside the device that has hit the inner light-intensity reflecting surface and the direct irradiation light of the illumination light are applied to the inside of the first fixed display board, and are emitted from the first fixed display board. 2. The display device according to claim 1, wherein colored transmitted diffused light is applied to the display surface of the wing-like member to brightly illuminate the display surface of the wing-like member. (3) When the second display color display surface of the second fixed display board according to claim 2 is colored in a bright color, and the wing-shaped member is located on the first fixed display board. Internal illumination light is eliminated by coloring the display surface of the wing-shaped member that appears diagonally in the front side in the same color as the bright color that is colored on the second display color display surface of the second fixed display board. When the wing-shaped member is positioned on the first fixed display board, a second display color display with high brightness is displayed in cooperation with the outside light during the daytime, and a first display display with a relatively dark color is displayed by other display elements. The second display element has a clear contrast with the color display and displays the first display color brightly by internal illumination light at night when there is no external light.
3. The display device according to claim 1, wherein a display element for displaying a display color displays a dark display with a clear contrast. (4) A first fixation of a first display color display in which one slope is formed of a light-transmitting and diffusive material of an arbitrary color so that the vicinity of the vertical center line of the substrate corresponding to one display element is a valley plane. Two fixed display boards: a display board, and a second fixed display board with a second display color whose slope on the opposite side is formed of a light-transmitting and diffusive material of an arbitrary color;
The wing-shaped member is installed in a V-shape to the left and right with respect to the front of the display element, and is exposed on the front side of the wing-shaped member located in a stable position covering either the first or second fixed display board. Colored transmitted diffused light of the first and second display colors generated when the inside of the first and second fixed display plates are irradiated with illumination light from inside the device. The first and second fixed display plates of the wing-shaped member are illuminated with colored light that transmits and diffuses light from one of the fixed display plates that is not covered and diffused by the wing-shaped member. By reversing the movement to the two upper stable positions, the display surfaces exposed on the two front sides of the wing-like member at the two stable positions are respectively illuminated with colored transmitted diffused light of the two display colors. A display device according to claim 1, characterized in that: (5) Both sides extend substantially perpendicularly from the outer sides of the first and second fixed display plates to the substrate surface on the boundary line of each horizontally adjacent display element of the display device according to claim 4. A double-sided reflective plate having a high-light reflection surface is provided hanging down to form an internal partition between the adjacent display elements, and when the internal illumination light hits the first and second fixed display plates of the adjacent display elements, 5. The display device according to claim 1, characterized in that the generated internally diffused reflected light is reflected together. (6) The display device according to claim 1, wherein the material of the substrate is a transparent or light-diffusing plastic material. (7) The display device according to claim 1, wherein the front and back surfaces of the wing-shaped member are mirror surfaces. (8) At least one side of the area that partitions the trapezoidal space formed to open outward by the first and second fixed display plates on the boundary line of each vertically adjacent display element has a mirror surface. 2. The display device according to claim 1, wherein a partition mirror plate is provided on a boundary surface of each display element. (9) The magnetic pole located on the vertical center line of the substrate for one display element is installed as one main magnetic pole with the magnetic pole facing the front, and the main magnetic poles of each horizontally adjacent display element are An auxiliary magnetic pole is placed at an intermediate position between the first and second magnetic poles.
The iron bars extend to near the inner surface of the outer side of the fixed display board and are installed with their magnetic poles facing the front, and each iron bar has the main magnetic poles on the front side and is arranged alternately in the horizontal direction, and each iron bar has the auxiliary magnetic poles on the front side. By magnetically connecting the respective rear ends of the iron rod with a yoke iron material whose projected area on the board surface is sufficiently smaller than the board area, both the main and auxiliary magnetic poles magnetized by the fixed side electromagnet means can be rotated. The display device according to claim 1, wherein the magnetic force acting between the moving side magnetic means and the magnetic pole of the permanent magnet acts in a direction substantially parallel to the display surface of the wing-shaped member. . (10) means for determining the polarity of the magnetic poles at row and column intersections by selectively energizing row and column wiring conductors connected to the magnetic poles of the rows and columns by the fixed side electromagnet means; and pixel display on each of the magnetic poles. 2. The display device according to claim 1, further comprising means for simultaneously determining the polarity of the magnetic poles of said matrix by selecting a winding direction in accordance with said conductor and energizing the wound conductor.