JPS58114087A - Display unit and manufacture thereof - 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 provides a display device that displays symbols and images by arranging a large number of magnetically driven display elements in a matrix and selectively displaying the display surface of any display element, and the display device thereof. This relates to a manufacturing method.

Conventionally, as a character display device, there is a device shown in FIG. 1, which is described in Patent Application Publication No. 13359/1982. It comprises a flat disc element 1 having contrasting colors on both sides and rotatably mounted on a base member 5 for displaying one or the other face depending on the orientation of the faces; A permanent magnet 2 attached to the element 1 has a display element that can control the orientation of the disc element 1 by an external magnetic field, and the magnet of the disc element 1 is used to selectively change the external magnetic field for each element. The magnetic field forming member 4 has a pair of magnetic pole pieces 3, 3' arranged close to both the positive and negative magnetic poles of No. 2 at both ends, and has an intermediate portion twisted around a parallel axis to form a loop. , the former loop defines regions A and B together with the two surfaces 3 and 3', and each of the plurality of conductors 12 that conduct current in a certain direction passes through either of the two regions, and one of the plurality of conductors 12 passes through either of the two regions. Book 1
When a current flows through the conductor 12', a magnetic field of either forward or reverse polarity is applied to the magnetic pole 3, depending on the area through which the conductor 12' passes.
It is designed to be washed between 3'.

One of the features of this device is that the magnetic field forming member 4 for selectively inverting the disk element 1 has a twisted shape, and a conductor is placed in the area A inside the twisted ring. By passing the conductor through it, the relationship between the magnetic circuit and the conductor arrangement is reversed compared to the conductor passed through the untwisted region B. However, for this reason, when a general display device is used that is not limited to character display, the following problems arise. When making a general display device using the earlier patented technology, the pixel display at a specific location on the display device for a large number of desired display screens may always be hidden on a large number of screens, or
There is a possibility that a large number of conductors are always displayed, and a large number of conductors may be concentrated in either the A region or the B region of the magnetic field forming member 4 of the display element responsible for pixel display at that location. Naturally, the number of conductors that can fit into one area is limited, so the number of screen memories is 1/2 compared to the case where the conductors are distributed equally between areas A and B. Moreover, in the case of a general display device, the number of display elements is larger than the 35 elements of a character display device, and may range from 1,000 to 10,000 elements. , B When a plurality of conductors are passed through both areas, even if the base members of each display element are arranged in a row as described in the specification of the above-mentioned patent publication, the resistance due to sliding friction between the magnetic field forming member and the conductor can be reduced. Even if you try to reduce the number of magnetic field forming members A and B, one conductor
Since the conductors must be passed through both areas in a complicated manner, intertwining with multiple other conductors, the small amounts of frictional force add up, and as the number of conductors passed through both areas A and B increases, the task becomes increasingly difficult. In addition, even if multiple conductors could be passed through both the A and B areas of many magnetic field forming members, many base members could be lined up to create a large screen without damaging the complex conductor wiring group. The task of configuring is time-consuming;
There was a problem with high costs. On the other hand, regarding the structure of the magnetic circuit, in the patented technology, the magnetic field forming member 4 is twisted and has an intermediate part between the regions A and B, so that one conductor in the ring of the region A The excitation magnetic flux generated when the current flows leaks as leakage magnetic flux in the middle part, and the magnetic pole 3,
There was also the problem of reducing the magnetic flux necessary for excitation and magnetization of 3', and in order to compensate for this, an extra current had to be passed through the conductor.

Therefore, in order to solve the above-mentioned problems, the present invention aims to improve the efficiency of the magnetic circuit as a display element, eliminates the possibility that the storage capacity will be reduced to 1/2, and eliminates the work of passing it through a ring that causes friction. The present invention is a manufacturing method that allows dense wiring by drawing out conductors one after another, and a low-cost display device with a storage capacity that is easy to configure with a large screen.

The first embodiment of the present invention will be described with reference to FIGS. 2 to 6. A large number of ribs 7 having a large number of bearing holes formed at equal intervals are attached to the front side of a substrate 6 made of a non-magnetic material in parallel and vertically. A shaft portion protruding from the center of both left and right sides of the reversing display plate B, which is a thin square plastic plate, is pivotally supported in the bearing hole. The reverse display board B is colored white on the front side and black on the back side (indicated by diagonal lines in the figure). Such a reverse display board B
are supported vertically and horizontally by a large number of bearing holes in the large number of ribs 7. A permanent magnet 2 is attached near one shaft of each reversing display board B.

This permanent magnet 2 is placed with respect to the rotation center line of the reversing display board B.
It is biased towards one of the upper and lower sides. When the reversing display board B is oriented to display black, a lower magnetic field forming iron bar 10b having a magnetic pole facing and corresponding to the eccentric N pole of the permanent magnet 2, and the reversing display board B An upper magnetic field forming iron bar 10a having a magnetic pole corresponding to the eccentric north pole of the permanent magnet 2 is provided in correspondence with each reversal display board B, facing the eccentric north pole of the permanent magnet 2 when the polarity is reversed and the white display is oriented. ,
The respective magnetic field forming iron rod sets (10a, 10b) are embedded and fixed in the substrate 6 through holes drilled in the substrate 6 so as to stand on the back side of the substrate 6. The horizontal iron plate 11 shown near the rear end of the magnetic field forming iron bars 10a, 10b standing in a row in FIG. The distance between the tubes at both ends is the same as the above-mentioned magnetic field forming iron bar set (
Since the spacing is the same as the spacing between the iron bars (10a, 10b), the magnetic field forming iron rod set (10a, 10b) is inserted into the rear tip at the position shown by the two-dot chain line in the figure to form the lower and upper magnetic fields. The iron bars can be magnetically connected to each other, and the yoke iron plate 11 maintains its position by its own elasticity and optional parts, and can be easily attached and detached.

In this embodiment, the magnetic field for the permanent magnet 2 attached to the reversing display board B, the magnetic pole position, and the connection relationship between the iron material corresponding to the yoke iron plate 11 and the two iron bars having the front magnetic poles are known techniques, but the present invention is not limited to this. The feature of the invention is that, as will be explained in this embodiment, a large number of yoke iron plates are placed at the rear ends of the two magnetic field forming iron bar sets (10a, 10b) of the yoke iron plate 11, and Before inserting the screens into each tip, a plurality of screens displayed by the plurality of conductors 12 are efficiently inserted into the above-mentioned magnetic field forming iron bars 10a, 1.
This is to perform write wiring as a conductor arrangement for 0b.

In the case of the present invention, the yoke iron plate 11 of all display elements is
It must be removed during the writing wiring work, and each magnetic field forming iron bar set (10
The yoke iron plate 11 is placed at the tip of the direction a, 10b), respectively.
This is different from the conventional method of connecting the yoke iron material to the two iron rods after inserting the coil, regardless of the display element or other display elements.

In the figure, 12' indicates one of the plurality of conductors 12, and in FIGS. 2 and 4, writing wiring for displaying the letter T is provided.

Unlike the patented character display device, this basic example uses one relatively large-area substrate 6, and a large number of magnetic field forming iron bars 10a10b are buried and fixed in a row on the back side of the substrate 6, so that the character display When wiring a symbol for a device, it is not possible to arrange a group of display elements in one line, but as in this example, a large screen and a large number of display elements are used to produce one unit or in small quantities. For advertising and public display purposes, the above 1.
The column expansion method is rather inconvenient, and the method of the present invention, in which the positional relationship between each pixel on a large-area screen and the display element is fixed, is easier to understand for the writing wiring operator and easier to assemble after wiring. ing.

Fig. 3 shows conductor pulling tools (13 to 16) for writing wiring, 13 is a bobbin on which a single 12' coated copper wire is wound, 14 is a handle, 15 is a conductor pulling Teflon pipe, 1
6 is a frame that supports each part above the handle 14.

When writing and wiring a plurality of desired screens from behind the board 6 using a plurality of conductors 12 using such conductor pulling tools (13 to 16), the upper and lower magnetic field forming iron bars 10a
, 10b as one set, and while pulling out the conductor with the conductor pulling tool, look between the two iron bars 10a and 10b of the first set from the conductor pulling direction shown by the arrow in the figure as shown in FIG. Depending on whether the reversing display board 8 is in charge of white pixels or black pixels, select the one image you want to display. Place the original original image 17 as shown in Figure 5 with the screen upside down next to the row to be wired, and place the original original image 1
Original image column part 1 that determines the display of the column to be wired in 7.
While referring to each document original image display 7', wires are continuously connected to the front magnetic field forming iron bar set (10a, 10b). In this case, the original original image 17 is not turned upside down but is made in its original size, and an original image row section 17' is created by making it into a vertical pixel row, and the magnetic field of the vertical column corresponding to each original image row section 17' to be manipulated is created. If the original image row section 17' is temporarily set on the back side of the substrate 6 along the group of forming iron bars as shown in FIG. 4, the wiring can be easily referenced and wired efficiently without making any mistakes. During this conductor drawing, the bobbin 13 rotates while being braked by appropriate friction, and the conductor 12' is drawn out while maintaining an appropriate tension, so that the magnetic field forming iron bars 10a, 10b and the conductor 1
There is no peeling off of the coating due to slipping or friction with 2', allowing highly efficient writing wiring. Once the writing wiring for one screen is completed in this way, next pull out a new conductor 1 from the Bohin 13 or use another conductor 1 wound around another Bohin 13.
Using the conductor pulling tool (13-16) replaced with 2', write wiring is performed with reference to another manuscript original 17, and multiple write wirings are performed using a plurality of conductors on the display screen of the desired coating. . As the next work step, while protecting the above-mentioned yoke iron plate 11 with an appropriate insulating material so as not to damage the coating of the conductor 12, attach it to the rear tips of the upper and lower pair of magnetic field forming iron bars 10a and 10b, and in the same way. The entire structure is completed by fitting it into a large number of magnetic field forming iron bar sets (10a, 10b).

In addition, the material of the magnetic field forming iron rod used in this example and other examples described later may be semi-hard magnetic materials using known technology, chrome steel, carbon steel, etc.
The material used is a material that is excitation and magnetized by a pulsed current and has residual magnetism even after the pulsed current is removed and the excitation is removed.

Now, when a pulse current flows through the conductor 12' passing from right to left between the upper and lower pair of magnetic field forming iron bars 10a and 10b when viewed from the back and from the direction of current flow,
The upper next forming iron bar 10a facing the permanent magnet 2 of the first repetition display board 8 is magnetized with the front magnetic pole arrangement so that it becomes the north pole, and the lower magnetic field forming iron bar 10b becomes the south pole. Then, Until then, the upper magnetic field forming iron bar 10a
The N pole of the permanent magnet 2, which had been attracted to the permanent magnet 2 and stopped there, receives a repulsive force, and the viewpoint display plate 8 rotates, changing its orientation from the white display to the black display. Between the two iron bars of another set of magnetic field forming iron bars (10a, 10b). The reversing display panel 8 of the display element, in which the same continuous conductor 12' as described above is wired so that it passes from left to right when viewed from the back and from the direction of current flow, is , even if the previous display was white display, it remains in that state, and if it was black display until then, it is reversed and becomes the orientation position of white display. Similarly, for all the display elements arranged vertically and horizontally using one continuous conductor 12', one set of two magnetic field forming iron bars 10a, 10
A display element wired so that the current flows from right to left when viewed from the back side between b will display black, and a display element wired so that the current flows from left to right will display black. Since the writing wiring is arranged so as to display white, and because the writing wiring is arranged in relation to the display of the pixels of the original original image 17, the single conductor 1
By passing a current pulse through 2', a screen identical to one of the original original images 17 is displayed in a mosaic pattern on the front side of the substrate 6. Due to this action, the original manuscript 1 shown in FIG.
1 shown in FIG.
Writing wiring is performed using the book conductor 12', and the T-shaped display shown in FIG. 2 can be made. In the same way, display on a plurality of screens by each write wiring of a plurality of conductors 12 can be obtained by passing a current through one conductor 12' of the plurality of conductors 12.

At the time of writing wiring using the plurality of conductors 12, each magnetic field forming iron bar 10a, 10b of vertically adjacent display elements
The fact that the wires are lined up in a straight line in the vertical direction is useful for minimizing the length of the wiring, reducing electrical resistance, and streamlining the wiring work. In this embodiment, the magnetic field forming iron bars are arranged in a straight line in the vertical direction, but the present invention can be implemented by arranging the rows of magnetic field forming iron bars along the wiring row in almost a straight line in both the horizontal and diagonal directions. This fact is also useful when using jigs in the mass production method described later.

In addition to the method described above, there are two methods for wiring the write wiring per display element in this embodiment. 2 above
The method of passing the conductor 12' from right to left or left to right between the magnetic field forming iron bars 10a and 10b corresponds to 1/4 turn per magnetic field forming iron rod 10a or 10b, and the yoke iron plate 11 1 per magnetic circuit connected with
/2 turns, but the method shown in A and B in Fig. 6 involves winding the conductor 12' once per magnetic circuit in the first half, and the two windings shown in Fig. 6B Magnetic field forming iron bar 1
0a, 10b, the upper iron rod 10a or the lower iron rod 10b is selected by pixel display and wound in the same winding direction, and the two magnetic field forming iron rods 10a, 1 shown in FIG.
0b, the upper magnetic field forming iron bar 10a is wound either clockwise or counterclockwise in accordance with the pixel display, and both have the same effect of specifying the magnetic field polarity of the display element. In the case of the wiring method shown in Fig. 6A and B,
Compared to the 1/2 turn wiring method of the above-mentioned embodiment, the current peak value of the pulse current can be reduced to half.

In addition to the three wiring methods described in the above embodiments, the present invention can also be implemented by the following wiring methods.

That is, one conductor 12' is used to connect many of the other display elements so that each of the two magnetic field forming iron bars 10a and 10b is wound multiple times in opposite directions. (not shown) This means that the yoke iron plate 1
Even if there is no magnetic connection at the rear ends of the two magnetic field forming iron bars 10a and 10b according to 1, the two magnetic field forming iron rods 1
0a and 10b are each magnetized by flowing a current through a single conductor wound multiple times, and the magnetic field necessary for driving the display element can be formed in the same manner as described in the above embodiment. It means.

Next, a second embodiment of the present invention will be described.

This is shown in Figures 7 to 9, and is a bearing (18) with a vertical round hole on the front side of a white plastic substrate 6.
are regularly installed vertically and horizontally, and the front end magnetic pole part of the main magnetic field forming iron bar 10 is placed at the middle position of each of the many bearings 18 arranged in the vertical direction, and each of the bearings 18 arranged in the horizontal direction
The front end magnetic pole parts of the slave magnetic field forming iron rods 10' are respectively located at intermediate positions between the two, and the rear ends of the slave magnetic field forming iron rods 10' are arranged on the back side of the substrate 6, so that the slave magnetic field forming iron rods 10' are mainly attached to the substrate 6. A large number of the front end magnetic pole parts of 10' are embedded and fixed, and the large number of bearings 18 have a vertical length slightly smaller than the vertical relationship of the bearings 18,
A large number of moving display boards 19 made of thin plastic, each having a horizontal length that is approximately half the horizontal length of the bearings 18, are supported by shafts provided at the top and bottom of each side. . On each side of the movable display board 19 on the rotation center side, a permanent magnet whose magnetic axis is perpendicular to the front and back surfaces of the movable display board 19 is placed in a recess provided in the center of each side. 9 are respectively attached and face the front end magnetic poles of the large number of main magnetic field forming iron bars 10. The front and back sides of each movable display board 19 are colored white and black (indicated by diagonal lines in the figure), and the movable display board 19 is tilted to the right from its center of rotation so that the black display surface is on the front side. while leaving the white plastic material surface of the substrate 6 covered by the moving display board 19 as it is;
The 6 surfaces of the substrate exposed on the other front side are colored black (indicated by diagonal lines in the figure), and all the movable display boards 19
When it falls to the right from its center of rotation, the entire screen becomes black due to the black surface of the board 6 and the black display of the movable display board 19, and conversely, all of the movable display boards 19 move to the left of its center of rotation. When it falls down, most of the screen can be displayed in white on the surface of the board 6 by combining the white that was previously hidden by the movable display board 19 and the white display of the movable display board 19. When this embodiment is viewed from the back side, it looks like FIG. 8. However, what is shown by the imaginary two-dot chain line is a continuous yoke iron plate 11', which is made by bonding two iron plates with dents at a short distance, overlapping each other with their dents aligned, as shown in Fig. 9. , since the shape of the recess is semicircular, the two pieces together form a tube, and the inner diameter of the tube portion is the same as that of the main and sub-host forming iron bars 10,
10', and the distance between the tube parts is the same as the distance between the main and slave magnetic field forming iron bars 10, 10', and the elasticity of the two iron plates 11' is equal to that of the two iron plates 11'. , a ninth
As shown by the two-dot chain line in the figure, it is fitted and held, and can be easily attached and detached.

When the continuous yoke iron plate 11' is not yet attached, a plurality of original originals 17 can be removed using the conductor pulling tools (13 to 16) in the same manner as described in the description of the first embodiment. to display the desired multiple display screens using multiple conductors 1
The winding direction of the conductor 12' wound around the main magnetic field forming iron bar 10 of each display element is continuously controlled one after another depending on whether the individual pixel display is black or white. Writing wiring can be performed so as to be wound around the main magnetic field forming iron bar 10. As one row of the writing wiring, Fig. 8 shows a conductor drawing tool (1
3 to 16), the direction of movement and the direction of the current are indicated by arrows, indicating the state that occurs when the polarity of the front magnetic pole of the nuclear main magnetic field forming iron rod 10 is divided into N and S poles in an upside-down L-shaped arrangement. There is. This applies magnetic force to each permanent magnet 9 attached to each movable display board 19, and causes L shown in FIG.
It helps form the shape of the figure. After writing and wiring one screen with one conductor 12' and a plurality of screens with a plurality of conductors 12 in this way, many pipe parts of the continuous yoke iron plate 11' are connected to many main and slave magnetic field forming iron rods. The structure of this embodiment is completed by continuously fitting the parts 10 and 10' into the rear tips of the parts 10 and 10'. Unlike the first embodiment, the yoke iron plate of this embodiment is continuous because
The permanent magnet 9 attached to the movable display board 19 receives magnetic force mainly due to the magnetic force generated from the front end magnetic pole of the main magnetic field forming iron bar 10, and both the main and secondary magnetic field forming iron bars 10, 10'
There is no equal division of roles as in the first embodiment, but the magnetic force lines coming out from the front end of the main magnetic field forming iron rod 10 return to the rear of the main magnetic field forming iron rod 10 to reduce magnetic resistance and improve efficiency. This is because the yoke iron plate 11' and the secondary magnetic field forming iron rod 10' are used to prevent the driving force from weakening due to interference with the magnetic field of the main magnetic field forming iron rod 10 of the adjacent display element.

If the display elements are spaced apart from each other and the current flowing through the conductor 12' is increased compared to the case of this embodiment, only the main magnetic field forming iron rod 10 is used, and the secondary magnetic field forming iron rod 10' and the continuous yoke iron plate 11' are used. The present invention can be practiced without using.

Techniques for reducing magnetic resistance and avoiding interference have been practiced in the past. By applying one of the conventional techniques, a U-shaped yoke ■ is magnetically connected to the rear end of the main magnetic field forming iron bar 10 to form a high magnetic conductivity magnetic circuit section, and the secondary magnetic field forming iron rod 10' and the yoke are There is also a third embodiment of the invention, as shown in FIG. 10, which does not use iron plates. In this embodiment, the configuration on the front side of the substrate 6 is the same as in the second embodiment, and the diameter and interval of the hole formed on the center line of the groove surface of the U-shaped yoke 11 Since the diameter and spacing are approximately the same, they can be easily attached and detached.

In the case of the second embodiment, the conductor 12' is wound once around each main magnetic field forming iron bar 10, but as another write wiring method that produces an effect equivalent to this, there is a wiring example shown in Fig. 11. , this is the main and secondary magnetic field forming iron bars 10, 1 which are to be connected later magnetically by the continuous yoke iron plate 11'.
Wiring is done in a diagonal direction along a straight line of 0'.
The forward direction conductor 12'a shown by the solid line in FIG. 11 and the return direction copper wire 12'b shown by the broken line in the figure are wired by the wiring method explained in the first embodiment with reference to FIG. By making an electrical connection at the connection point J at the lower corner of the back side of the display device and passing a current in the direction shown by the arrow in the figure, the front end magnetic pole of the main magnetic field forming iron bar 10 forms an inverted L-shape. This is a N-pole arrangement. The feature of this wiring method is that although the main magnetic field forming effect equivalent to that of the one-turn winding shown in FIG. This is necessary for the manufacturing method of mass-produced display devices, which will be described later, because it is a writing wiring method that can be mass-produced efficiently using a conductor installation jig. be.

In the second and third embodiments, instead of the movable display plate 19, a permanent magnet is embedded in a reversible display body such as a sphere or cylinder made of a non-magnetic material that is reversibly supported, and the main magnetic field is formed. This can also be carried out using a conventionally known display device that is opposed to a horizontal bar. However, the present invention, which is characterized by the magnetic circuit of the second embodiment, has a structure that can produce unique effects as described below. As an application of the second embodiment, although not shown, the substrate 6 is made of milky-white translucent plastic, and a fluorescent lamp is installed behind the group of magnetic field forming iron bars 10, 10' on the substrate 6. internally illuminated from the inside,
The left and right sides of the terminal board 6' as one display element are printed with two types of transparent ink, and the left and right display surfaces with two types of emitting colors are printed with a second color, except that both the front and back sides are black. A light-shielding driving plate having the same configuration as the movable display plate of the embodiment is reversely moved by the same driving action as that of the movable display plate of the second embodiment, so that two types of light emitting on the left and right sides of the element substrate 6' are generated. There is a device that shields one of the display surfaces from light and exposes the other display surface to the front side, allowing selective display by two types of luminescent eclipse. As in the second embodiment, one side of the element substrate 6' is colored black, and the other side is exposed to the display side as it is, so that it becomes milky white under external light. It can also be applied. In this case, ■ is the second
As in the embodiment described above, the black and white displays on the front and back sides of the movable display board 19 cooperate with the displays on the left and right sides of the element substrate 6', but at night, when there is no external light and there is internal lighting, The color display on the moving display board will be an unrelated darkness, so the display (
Although the light emitting area is half of that in case 2, the display is bright because the surrounding area is dark.

The conditions for this kind of application are that effective driving force can be obtained even if the front end magnetic pole area of the magnetic field forming iron bar is small;
Unlike the conventionally known third embodiment, it is necessary that a large iron plate does not lie between the internal lighting and the board, and in this respect the second embodiment satisfies this condition. and
Even if the front magnetic pole area of the main magnetic field forming iron bar 10 is small, a strong magnetic field can be created at the center of the element base 6, the shadow of the secondary magnetic field forming iron bar 10' is minimized, and the arrangement of the continuous yoke iron plate 11' is Due to the diagonal direction of the element substrate 6, the magnetic path can be made twice as long as in the third embodiment. Therefore, leakage magnetic flux can be minimized even with excitation using a conductor with a small number of turns, and magnetic reversal as conventionally known can be achieved. The yoke iron plate of the present invention, which has features that cannot be achieved with the technology of type display devices, can be implemented in the form of a bar, in addition to the plate shape of the yoke iron plate described in the embodiments. In addition to round rods, square rods with rectangular end surfaces can also be used.

Next, the fourth embodiment will be explained with reference to FIGS. 12 and 13. This is a more efficient configuration of the second embodiment so that a large driving force can be obtained with a small amount of current. be. Figure 12 depicts only two display elements;
The element substrate 6' has three magnetic field forming iron bars 10c, 10, ie, a first slave, a main, and a first slave from above the center line of the element substrate 6'.
, 10d front magnetic poles are buried and fixed. Along one side of the rotation center side of the movable display board 19, facing the three magnetic poles, are three permanent magnets 9c, 9 whose magnetic axes are directed in a direction perpendicular to the front and back surfaces of the movable display board 19. , 9d are attached to the movable display board 19 so that the white side of the movable display board is arranged as S, N, S from above, and the black side of the movable display board is arranged as N, S, N from above. After the three magnetic field forming iron bars 10c, 10, 10d are wired to write a plurality of display screens using a plurality of conductors 12, the three magnetic field forming iron bars 10c, 10, 10d are connected to the yoke iron plate 11■.
This is a configuration in which comrades are connected magnetically. The feature of this embodiment is that in the case of the second embodiment shown in FIGS. 8 and 11, the conductor 12' is wound once around the main magnetic field forming iron bar 10; The two-turn conductor wiring method shown in FIG. 13 also enables display conversion with the same current value, so it is a method that allows efficient writing wiring using a conductor installation jig, which will be described later. However, because the distance between the three magnetic field forming iron bars 10c, 10, 10d is small, there is a lot of leakage magnetic flux when the conductor 12' with a small number of turns is energized and excited, and in order to reduce the leakage magnetic flux, side magnetic field is formed. The length of the iron bars 10c, 10, and 10d must be shortened, which reduces the capacity of the conductor 12 and reduces the screen storage capacity. Therefore, in the fifth embodiment shown in FIG.
, 9d, and two opposing magnetic field forming iron rods, 10a at the top and 10b at the bottom, eliminate the above point (2) while maintaining high efficiency. The write wiring for this embodiment is performed by the same method as the wiring method described in the description of the first embodiment in FIGS. 4 and 6.
Among these wiring methods, this embodiment is particularly suitable for mass production, which will be described later, by a wiring method in which the conductor 12' is wound 1/2 turn per magnetic circuit including the upper and lower magnetic field forming iron bars 10a and 10b shown in FIG. It has the characteristic that it can be produced efficiently using a manufacturing method.

As described in the description of the embodiments above, the present invention has a configuration in which magnetic field forming iron bars are arranged on the back side of the substrate.
A plurality of display screens can be easily written and wired using a plurality of conductors in relation to the above-mentioned array of magnetic field forming iron bars. The structure is such that it is easy to maintain the vertical and horizontal positional relationship of the magnetic field forming iron bars. Next, two methods for manufacturing this display device will be explained. One of them, as described in detail in the first embodiment, is a method suitable for manufacturing one large screen or for small-scale production. Using the hooks (13 to 16), it is possible to write and wire the board much faster than the time it takes for a board maker to apply paint or other paint to the screen while looking at the original drawing.

This high-speed write wiring is possible because the display elements are arranged in advance on the substrate 6 in a regulated manner.
This is because, unlike applying paint, there is no need to correct brush width differences, blurring, bending, etc., and there is no need to draw outlines on the base of the full-size sign board. It only needs to be a rough manuscript that can be used to judge whether the pixels are white or not, and can be written quickly.

Next, there is a mass production display device manufacturing method as another method of the manufacturing method of the present invention. This is a method that uses the conductor installation jig 20 shown in FIGS. This system is characterized in that display devices having the same large number of stored display contents can be efficiently mass-produced by wiring conductor wiring and storing data in mass-produced display devices, and using a large number of conductor installation jigs 20.

The display device of the embodiment of the present invention shown in FIGS. 15 and 16 is a character display device using 35 display elements of the fifth embodiment shown in FIG. 14 arranged in 5 columns and 7 rows. Each figure shows the conductor installation jig 2 to explain the manufacturing method.
0 is shown fitted into the display device.

In this character display device, insulating plates 23 each having 17 lug terminals 21 attached thereto are attached to the back sides of the upper and lower sides of the board 6, and between the 32 lug terminals 21 and the two common ground terminals 21'. This is a display device that displays 32 kinds of alphabetic characters and symbols by applying a pulse voltage to the screen.

On the other hand, the structure of the conductor installation jig 20 is roughly divided into jig frames 20a and 20b, and a large number of conductor guide pieces 2 attached to the jig frames 20a and 20b.
The structure of the jig frame consists of 0c, which fits in contact with the left and right sides of the board 6 of the display device and some positioning contact parts near the corners of the top and bottom sides, and is attached to the top and bottom sides of the board 6. The jig part 2 is designed to avoid the lug terminal groups 21 and 21'.
0a is made of iron plate. The thickness of this iron plate is the total dimension of the thickness of the board 6 and the thickness of the bearing 18 provided on the surface of the board 6. When the part 20a is fitted into the substrate 6 with the group of magnetic field forming iron bars facing up, the frames on the sides facing each other alternately from the top surface of the frames on the upper and lower sides along the row of magnetic field forming iron bars of one row of display elements. Three cantilever beams 20b made of aluminum protruding from the side are fixedly joined to the jig frame 20a, and the substrate is placed at the center lower part of the five rows of gaps between the six cantilever beams 20b. The jig frames 20a, 20b have five vertical rows of magnetic field forming iron bars 10a, 10b arranged in rows. Next, the configuration of the conductor guide pieces, 2 pieces per display element and 70 pieces per display device, is arranged so that the right corner of each tip of the magnetic field forming iron bar row is located at the lower center of the gap between the cantilever beams 20b. Conductor inner piece 2 to be attached to the cantilever beam 20b on the upper left side of the cover diagonally
0c or the conductor guide piece 20c that covers the left corner of each tip of the front k magnetic field forming iron bar row and is to be attached to the cantilever beam 20b on the diagonally upper right side by displaying each pixel of one alphabetic character or symbol. The conductor installation is determined based on the wiring rules explained in the first embodiment, depending on whether the conductor 12' should be located on either the left or right side with respect to the column direction of the magnetic field forming iron bars 10a, 10b of each display element. If the jig 20 is set on the back side of the board 6, the front part 70 should be there.
7 corresponding to the tip positions of the magnetic field forming iron bars 10a and 10b of the book.
A conductor guide piece 20c made of a metal plate is attached to each cantilever beam 20b, and the conductor installation jig 20 shown in the figure is for installing a conductor 12' for displaying the figure 1. The conductor 12' is introduced while guiding it to pass from right to left between a pair of magnetic field forming iron bars 10a, 10b when viewed from the conductor pulling direction in only the central row out of the five vertical rows. The mounting direction of each conductor guide piece 20c is such that

To perform figure 1 writing wiring using this conductor installation jig 20, first place the board 6 on which the magnetic field forming iron bars 10a and 10b stand on a flat workbench with its back side up, and then The jig frame 20a is fitted onto the substrate 6 while the conductor installation jig 20 is placed over it. At this time, the lower portions of the plurality of conductor guide pieces 20c are
the right side of the tips of the large number of magnetic field forming iron bars 10a, 10b;
Or the left side will be covered. Next, connect one conductor 12' to the common ground terminal 2 at the end of the lug terminal.
1' and temporarily fix it, hold the conductor 12' in your hand and gently pull it diagonally while pushing down the conductor 12' from the top of the conductor 12' toward the magnetic field forming iron bar row below using the rubber comb-shaped pushing tool 22. By this, the large number of conductor guide pieces 20c
The conductor 12' is guided and wiring is performed near the back surface of the board 6. In this way, the wiring to the front magnetic field forming iron assembly (10a, 10b) of 5 rows is completed after passing through 4 turning points. After that, remove this conductor installation jig,
32 conductor installation jigs 2 for displaying different alphabetic characters and symbols one after another
0 is set from the back side of the board 6, and writing wiring is performed using the conductors 12' in rows one after another. At this time, the order positions of the lug terminals 21 and the corresponding alphabets and symbols are determined in advance, and one Immediately after completing the alphabetic writing wiring, connect the conductor 2 to the determined lug terminal 21.
By soldering or temporarily fixing 1', it is possible to select and display alphabetical characters and symbols without fail.Finally, 35 yoke iron plates 11 are attached to each display terminal's magnetic field forming iron bar set (10
This character display device can be completed by fitting it to the tip of the parts a and 10b). In this manufacturing process, the conductor 12' is lowered using the comb-shaped pushing tool 22.
If the size of the display element is large, the conductor 12 can be
It may be more efficient to carry out the unloading work of '', and it is not an essential jig for the present invention.

Since a manufacturing method suitable for such mass production can be used in addition to the manufacturing method described in the description of the first embodiment of the present invention, it is possible to efficiently mass-produce display devices that always have the same content. As an application to this video display, it can be used as an advertising display device by a manufacturer to display the same commercials or display the same video attractions as a board for affiliated stores. A video is created by sequentially and cyclically passing a pulse current through 100 conductors wired using a conductor installation jig to display 100 screens one after another at a rate of 10 frames per second. This method uses a simpler electric circuit compared to the conventional method in which the X-axis and Y-axis wiring conductors are energized by computer operation, and the display elements at the intersection of both axes are driven one after another within a short period of time, converting the display and displaying a moving image. It has the effect of being easy to manipulate and being made at low cost.

In addition, the present invention has less magnetic flux leakage than conventional character display devices, and can effectively drive display elements even if the area accommodating multiple conductors is widened. The first embodiment is suitable for small-volume production and can be applied not only to character display but also to feeling display and large-screen image display because of its flexibility, increased storage capacity, and manufacturing method. In the case of the manufacturing method described, the position of the magnetic field forming iron rod of each display element embedded and fixed in the substrate corresponds to the position of the pixel of the original manuscript image, making it easy to check the display and winding method.
For example, between the video display of the store's signboard, the store's catchphrase or store name can be easily displayed by writing wiring with an additional conductor. As described above, the present invention is a display device that can be provided at low cost because it has a configuration that allows for an efficient manufacturing method that stores a large number of screens within the display device without using a computer or an external memory device. It is an industrial invention that has a wide range of applications as a general display device such as a traffic display or a public display.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional magnetic drive display element, FIG. 2 is a partially exploded perspective view of the first embodiment of the present invention, FIG. 3 is a perspective view of a conductor pulling tool, and FIGS. Figures A and B are partial rear views of the first embodiment with the iron yoke plate removed, and Figure 5 is a partial front view of the original manuscript used when manufacturing the first embodiment.
FIG. 7 is a partial front view of the second embodiment of the present invention, FIGS. 8 and 11 are partial rear views of the embodiment of FIG. 2 with the continuous yoke iron plate removed, and FIG. FIG. 10 is a partially exploded perspective view of the third embodiment of the invention, FIG. 12 is a partially exploded perspective view of the fourth embodiment of the invention, and FIG. 13 is a partially exploded perspective view of the fourth embodiment of the invention. FIG. 14 is a partially exploded perspective view of the fifth embodiment of the present invention, and FIG. 15 is a partial rear view of the fourth embodiment with the yoke iron plate removed.
16 is a partial perspective view of FIG. 15; This shows the wiring state. DESCRIPTION OF SYMBOLS 1...Disk element, 2,9...Permanent magnet, 3,3'...Magnetic pole piece, 4...Magnetic field forming member, 6...Substrate, 8...Reversing display plate, 10...Magnetic field forming iron bar, 11...Yoke iron plate, 1
2. Conductor, 17. Original manuscript, 19. Moving display board,
20...Conductor installation jig. Patent applicant: Kozo Ito, representative of Kokusai Display Kogyo Co., Ltd.

Claims (1)

[Scope of Claims] 1. A selective control magnetic field for each display element that exerts a magnetic force on the permanent magnet of a display element having a drive body having a permanent magnet causes the drive body for each display element to be controlled selectively driven, and for each display element by a direct display surface of the driver or a display surface that changes in relation to the drive of the driver,
In a magnetically driven display device in which a large number of driving bodies capable of performing selective display on each display element are arranged in a matrix on the surface side of a substrate, a magnetic field is arranged so as to form a limit that exerts magnetic force on the permanent magnet. A large number of magnetic field forming iron bars are embedded and fixed in the substrate and are arranged in a forest on the back side of the substrate, and one of the plurality of conductors is configured to allow current to flow in a fixed direction to the large number of magnetic field forming iron bars that are arranged in a forest. of,
The winding direction of the one conductor with respect to each of the magnetic field forming iron bars forming the magnetic field that controls one display element,
The wiring is changed for each display element in relation to the pixel display of one desired display screen, and the wiring is wound one after another in a manner that the magnetic circuit for each display element is wound at least 1/2 turn or more. However, each of the other plurality of conductors is connected to the back side of the substrate for each display element in connection with each pixel display of the plurality of desired display screens, in the same manner as the single conductor wiring method described above. The plurality of conductors are each wired by changing the direction of winding around the arranged magnetic field forming iron rods and winding each display element at least 1/2 turn or more per magnetic circuit so as to connect each wire continuously. When a current flows through one of the conductors, the direction of the magnetic field of each display element is changed depending on the winding direction of the conductor around each magnetic field-forming iron bar, selectively driving a large number of driving bodies, and the surface of the substrate is Displaying one desired screen as a whole on one side, and selectively or cyclically displaying multiple desired screens when current flows selectively or cyclically through other conductors. A display device characterized by being capable of. 2. The magnetically driven display device according to claim 1 has a reversing display plate having a rotating shaft supported by a bearing provided on the surface of an element substrate and a permanent magnet, depending on the polarity of an external magnetic field with respect to the permanent magnet. In the display element which takes two orientation positions by changing the direction of the display element and performs two kinds of display on the front and back of the reversing display plate, the element substrate is integrated with the element substrate of another adjacent display element and is made of a non-magnetic material. and two magnetic field forming iron bars are arranged in a square area of the element substrate so as to be aligned approximately in a straight line with the magnetic field forming iron bars written in the vertical, horizontal, or diagonal display element example including the display element. arranged in parallel, their front ends facing or close to the permanent magnets, and their rear parts embedded and fixed in the element substrate so as to stand on the back side of the element substrate,
The rear ends of the magnetic field-forming iron rods are removably connected with a yoke iron material, and when a current flows through the conductor wound around the magnetic field-forming iron rod, the front ends of the first two field-forming iron rods are connected at intervals. The display device according to claim 1, which is an assembly of magnetically driven display elements that generate a magnetic field. 3. The magnetic drive display device according to claim 1 has a permanent magnet, and on an element substrate as one display element,
A driving body rotatably supported on one side is made to take two positions on the element substrate surface by changing the polarity direction of the magnetic field with respect to the permanent magnet.
In a display element that performs different displays by cooperating a fixed display surface located at a position with a display surface of a driver, the element substrate is integrated with the element substrate of another adjacent display element, and a non-magnetic material is used. A magnetic field forming iron rod according to claim 1 is placed in the center of an element substrate formed with a main magnetic field forming iron rod, and a plurality of slave magnetic field forming iron rods disposed at corners of the square area of the element substrate and shared with other adjacent display elements, and each front magnetic pole is embedded and fixed in the element substrate. , the rear tips of the protruding main and secondary magnetic field forming iron bars are removably connected magnetically to each other by a yoke iron material; When current flows through a conductor with a small number of turns wound in a high magnetic conductivity magnetic circuit section,
2. The display device according to claim 1, which is an assembly of magnetically driven display elements, wherein a magnetic field can be effectively generated in the upper center of the front side of the element substrate. 4. The magnetic drive display device according to claim 1 includes a drive body having a plurality of permanent magnets and rotatably supported on one side on an element substrate as one display element, By changing the polarity direction of the magnetic field for the plurality of permanent magnets, the plurality of permanent magnets are made to take two positions on the surface of the element substrate, and the fixed display surfaces located at the two positions on the surface of the element substrate cooperate with the display surface of the driver. In a display element that performs different teachings, the element substrate is connected to the element substrate of another adjacent display element.
A magnetic field forming iron rod according to claim 1 is placed along the center line of an element substrate which is made of a non-magnetic material and has a square area for one display element. Each front magnetic pole part is embedded and fixed in the element substrate as a plurality of magnetic field forming iron bars facing the plurality of permanent magnets of the first half of the drive body while facing toward the rotation center of the drive body, and The rear tips of the plurality of protruding magnetic field forming iron bars are removably connected magnetically to each other by a yoke iron material, and a high magnetic permeability magnetic circuit section made of the plurality of magnetic field forming iron rods and the yoke iron material is formed. Claim 1, which is an assembly of magnetically driven display elements, characterized in that when a current flows through a conductor with a small number of turns, a magnetic field can be effectively generated above the center line on the front side of the element substrate. The display device according to item 1. 5. Create a plurality of manuscript originals in the form of a full-size mosaic image displaying a plurality of desired display screens, and then create a plurality of originals for a large number of J-shaped iron bars arranged on the back side of the substrate according to claim 1. The conductor wiring of one of the plurality of conductors brings the row of one of the plurality of original originals close to the wiring row on the back side of the board. The wiring row is wound and connected by associating the pixel display in the former manuscript original image row portion corresponding to the display element in the wiring row with the winding direction of the conductor with respect to the magnetic field forming iron bar of the display element. , Similarly, the desired display screen writing arrangement to be applied by each of the plurality of conductors is performed by wiring the one conductor in all the wiring rows according to each column part of the original cost. A method for manufacturing a display device according to claim 1. 6. Before wiring a plurality of conductors to a large number of magnetic field forming iron bars arranged on the back side of a substrate according to claim 1, when wiring one conductor among the plurality of conductors,
1, which corresponds to each pixel of one desired display screen, and has a large number of conductor guide pieces that determine, based on the conductor guide direction, which side of each magnetic field forming iron bar should be wired to the left or right when viewed from the wire drawing direction. We made two conductor installation jigs, and also determined whether each of the plurality of conductors should be wired to the left or right side of each magnetic field forming iron bar when viewed from the wiring drawing direction for other plurality of desired display screens. A plurality of conductor installation jigs were made in such a way that they could be determined in correspondence to each pixel of a plurality of desired display screens, and then the substrate with a large number of magnetic field forming iron bars standing on the back side was installed. Place it face up on a flat work surface,
Set the conductor installation jig for the two desired display screens on the workbench while fitting the positioning inscribed part of the frame made on the bottom surface of the jig to the outside of the board, and set the conductor installation jig for the two desired display screens. One conductor is connected to each row of the magnetic field forming iron rods that stand on the back side of the first circuit board from the openings provided on the upper surface along each wiring row on the back side of the board and right above each wiring row, and one conductor is connected to each row of the magnetic field forming iron bars on both sides of the opening. While being guided into the room by the attached conductor guide piece, all the rows of the magnetic field forming iron bars are connected near the back side of the board, and the wires for the other plurality of desired display screens are connected one after another. While replacing a plurality of conductor installation jigs to the board, a plurality of wirings are performed near the back surface of the board by each of the plurality of conductors while being guided and introduced by the conductor guide piece of each of the conductor installation jigs. A method for manufacturing a display device according to claim 1.