JPS62291836A - Electrodeposition - Google Patents

Abstract

PURPOSE:To make to be accurately deposited solely on the segment electrodes for forming a good phosphor screen by making phosphor grains to be deposited on the segment electrodes while relatively moving the deposition substrates and the opposing electrodes in a deposition liquid. CONSTITUTION:A polygonal supporter 13 is fixed to a rotary axis 12 inside a conductive container 10 while pasting deposition substrates 14, wherein segment electrodes 15 are arranged in each side of said supporter 13 at a prescribed pitch, for being cylindrically formed. Then, while being immersed in a deposition liquid 11, power supply 16 is connected to a container and between the respective segment electrodes 15 to rotate the rotary axis 12 by a motor. Thereby, the electrodes 15 and the container 10 are moved relatively while properly stirring the liquid by a rotating wing 17 for making phosphor grains to be finely stuck to the electrodes 15 to form a good phosphor screen for a fluorescent character display tube or the like.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to an electrodeposition method, and more particularly to an electrodeposition method applicable to forming a fluorescent surface in a fluorescent display tube.

(Prior art) A fluorescent display tube has a fluorescent surface formed on a large number of segment electrodes arranged in a single row or multiple rows in one direction, and is sealed in a vacuum container together with a hot cathode. While generating electrons, a positive voltage is selectively applied to the segment electrodes according to the information to be displayed, and the thermoelectrons are attracted to the selected segment electrodes, and the attracted thermoelectrons collide with the fluorescent surface. This is a display element that displays information using the fluorescent light emitted when the display is performed, and is known as a bar code display tube or a fluorescent dot array tube.

First, with reference to FIG. 46, an overview of fluorescent display tubes will be explained using a fluorescent dot array tube as an example.
Next, the conventional technology and its problems will be explained.

In FIG. 46, reference numeral 1 indicates an electrodeposited substrate, which is usually
It is made of glass plate, ceramic plate, resin plate, etc. On this electrodeposited substrate 1, a series of segment electrodes 2 are arranged in a line in the longitudinal direction of the substrate, and a fluorescent surface is formed on each of the segment electrodes 2. Therefore, the array shown in Figure 46 is actually an array of fluorescent surfaces.

Note that in reality, the size of each fluorescent surface is extremely small by 1/b, making it difficult to illustrate, so in FIG. There is.

Now, on the electrodeposited substrate 1, on both sides of the fluorescent surface array.

Dielectric layers 3A and 3B are formed in the longitudinal direction, and grid electrodes and IA are respectively formed on these dielectric layers 3A and 3B.
.

4B is formed. In Fig. 46, the symbol 5Ay
uB is a tungsten wire (the surface of which is coated with an electron emissive substance) as a hot cathode.

It is stretched in the longitudinal direction of the electrodeposited substrate 1. Reference numeral 6 in FIG. 46 is a face member made of a transparent material such as a glass plate, and is a grid electrode 4A.

4B and is integrated with the electrodeposited substrate 1 side. Thus, the electrodeposited substrate 1. Dielectric layers 3A, 3B,
The grid electrodes 4A, 4B and the face member 6 form a closed space inside, and within this space, there are a fluorescent surface formed by the segment electrode 2 and a phosphor layer formed on the segment electrode, and hot cathodes 5A, 5B. etc. are confined, and this space is highly evacuated. The segment electrode consists of an electrode part and a lead wire part. The electrode portion is approximately square, with dimensions of about 20 μm to 100 μm in length and width, and the width of the lead wire portion is 2 to 3 μm. The fluorescent surface is formed to cover the segment electrodes.

The segment electrode has an electrode part and a lead wire part integrated into a strip shape, and a fluorescent surface is formed at the tip of each segment electrode. Note that the shape of the electrode part is not limited to square.
It may be circular or the like.

When an appropriate voltage is applied to the grid electrodes 4A, 4B and an alternating current of several tens of milliamps is passed through the hot cathodes 5A, 5B, the hot cathodes 5A, 5B are heated by Joule heat and emit thermionic electrons. . In this state, for example, if a positive voltage is applied to one of the segment electrodes 2 to make this electrode a positive potential, thermionic electrons will be attracted to the electrode part of the segment electrode to which this voltage has been applied, and will be sucked into the same electrode part. When this happens, it inevitably excites the energy state of the fluorescent substance on the fluorescent surface. The excited fluorescent substance emits fluorescence when returning to the ground state, and this fluorescence is detected through the face member 6.

Such a phosphor dot array tube is used as part of the optical system of an optical printer or as a bar code display tube.

The above is an overview of the structure and operation of the fluorescent dot array tube.

Now, as a method for forming a good fluorescent surface on the segment electrodes in such a fluorescent display tube.

A method using electrophoresis is known (for example, Japanese Utility Model Publication No. 57-55728).

This is done by immersing the substrate on which the segment electrode array is formed in a dispersion liquid in which phosphor particles are dispersed, and applying a voltage between the counter electrode facing the segment electrode array and the electrode array to disperse the phosphor particles. Fluorescent particles in a liquid are attached to segment electrodes. The segment electrode row and the counter electrode are arranged parallel to each other and facing each other. When looking at the gap between the two, the so-called opposing gap, from the perspective of the electric field, the smaller the gap, the greater the electric field intensity can be obtained even if the applied voltage is small. In electrophoresis, dispersed particles move through a liquid in response to electric field strength, so the electric field strength is a very important factor.

However, it is extremely difficult to control the phosphor particles only on the segment electrode rows and not on other parts using an electric field alone, and it is extremely difficult to control the phosphor particles on the segment electrode rows only and not on other parts. It has been found empirically that it is effective to scrape and remove.

Therefore, in the past, a liquid flow was created by stirring the liquid tank with a rotary blade such as a propeller or circulating the liquid with a pump, but there was a limit to the stability of the flow. Especially when the electrode surface size is large or the segment arrangement density is large, a dispersion liquid of a predetermined concentration cannot be stably supplied to the gap facing the electrodes. I was lucky that no adhesion was expected.

(Objective) Therefore, the object of the present invention is to provide an improved electrodeposition method that increases the stability of liquid stirring and allows phosphor particles to be faithfully and densely adhered only to segment electrodes.

(Structure) In order to achieve the above object, the present invention stores an electrodeposition liquid in which phosphor particles are dispersed in a container, and forms an electrodeposition substrate in a polygonal shape around an axis in the container. , a counter electrode is provided opposite to the segment electrodes located on the surface of each electrodeposited substrate, and a power source is connected between the counter electrode and the segment electrode to form an electric field, and the electrodeposition having the polygonal shape is performed. This method is characterized in that fluorescent particles are electrodeposited one by one on the segment electrodes by relatively moving the substrate and the counter electrode in an electrodeposition solution.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention.

Example 1 (see FIGS. 1 and 2).

In the figure, reference numeral 10 indicates a circular conductive container.

This contains an electrodeposition liquid 11 in which fluorescent particles are dispersed.

A rotating shaft 12 rotated by a motor (not shown) is provided in the container 10, and a support 13 in the form of a polygonal column 1, for example, a hexagonal column, is integrally formed on the rotating shaft 12. ing. Six electrodeposited substrates 14 are attached to each surface of the outer periphery of this support body 13 in a polygonal combination to form a cylindrical body, which constitutes a rotating body that rotates together with the rotating shaft 12. do.

Here, segment electrodes 15 are arranged on the electrodeposited substrate 14 at a predetermined pitch depending on the intended function of the fluorescent display tube, and the segment electrodes 15 are arranged in a hexagonal shape with the segment electrodes 15 located on the outside. ing. Therefore, each segment electrode 15 faces the inner wall of the container 10 and is immersed in the electrodeposition liquid 11.

A power source 1 is connected between the container 10 and each segment electrode 15.
6 is connected, and the container 10 is given a function as a counter electrode.

Note that although the state of electrical continuity between the power source 16 and each segment electrode 15 is shown simply in FIG. 1, it is actually the same.

For example, it can be obtained by guiding a conductive wire that commonly connects the segment electrodes to a conductor ring on the circumferential surface of the rotating shaft 12, and pressing one end of the power source 16 into contact with the conductor ring in the form of a motor brush.

A blade 17 is provided at the lower end of the rotating shaft 12 to promote stirring of the electrodeposition liquid 11.

By rotating the rotating shaft 12 in the direction of the arrow, the segment electrodes 15 and the counter electrodes 10 are rotated relative to each other, resulting in appropriate liquid stirring.

Coupled with the rotation of the blades 17, the fluorescent particles are successfully adhered to the segment electrodes 15, which are the surfaces to be electrodeposited.

In the illustrated example, a part of the container IO was used as the counter electrode, but
A counter electrode may be provided separately within the container.

The circumferential speed of the rotating body using the electrodeposited substrate is 10 to 10'mm/se
E is appropriate, and can be easily set from the outer diameter of the polygonal prism and the motor rotation speed.

Furthermore, the adhesion or scraping effect differs depending on the viscosity of the electrodeposition liquid and the amount of charge (mobility, etc.) of the phosphor particles.
Set by considering these factors.

Example 2 (see FIGS. 3 to 7).

In this example, the configuration in which the electrodeposited substrate 14 is assembled into a cylindrical body with its segment electrode forming surface facing outward is the same as in the first embodiment. Further, the structure for rotating the cylindrical body in the electrodeposition liquid 11 in the container 10 is also the same as in the first embodiment. However, in this example, a counter electrode is provided separately within the container 10, and is composed of a mesh-like or perforated cylindrical conductor that covers the cylindrical body.

This cylindrical conductor serving as the counter electrode is shown in Figures 3, 4, and 6.
It is indicated by reference numeral 18 in the figure, is fixedly provided within the container 10, and is connected to one end of the power source 16.

In such a counter electrode, the mesh serves as a filter for the electrodeposition liquid, and has the advantage that in addition to the function of removing aggregated particles and foreign matter, it also has the function of stirring the liquid as the liquid circulates through the mesh.

Examples of devices that are particularly aimed at the effect of stirring the liquid include a perforated type (using a so-called punching metal, etc.) as shown in Figure 7, and a slit type as shown in Figure 5. In addition to its role as a counter electrode,
Embodiment 6 Embodiment 3 has the advantage of also having a stirring function due to the effect of preventing liquid circulation (see FIGS. 8 to 11).

In this example, the configuration in which the electrodeposited substrate 14 is assembled into a cylindrical body with its segment electrode forming surface facing outward is the same as in the first embodiment. Further, the structure for rotating the cylindrical body in the electrodeposition liquid ll in the container 10 is also the same as in the first embodiment. However, in this example, the counter electrode is around the cylindrical body,
They are arranged intermittently for each electrodeposited substrate.

In the example shown in FIG. 8, three opposing electrodes 19 are provided intermittently on every other electrodeposited substrate around the hexagonal combination of six electrodeposited substrates. There is.

A power source 16 is connected between each counter electrode 19 and the segment electrode 15. In this example, when the cylindrical body made of the electrodeposited substrate 14 rotates, the electric field between the counter electrode 19 and the segment electrode 15 changes over time.

Therefore, in this example, in addition to the liquid stirring effect, there is also an electric liquid stirring effect, and unlike the type that always deposits fluorescent particles in one direction, the fluorescent particles are deposited little by little, making the amount of deposition uniform. This is also effective in terms of ease of controlling the amount of adhesion. Regarding this point, the fifth
The same can be said of the counter electrode shown in the figure.

The example shown in FIG. 9 and FIG. 1O is a cylindrical counter electrode 20.
A fin is formed by bending a member to the outside of a cylinder when providing a slit in the cylinder.

Furthermore, as shown in FIG. 11, if the slit of the counter electrode is tilted with respect to the rotational axis of the cylindrical body, the electric field applied to the cylindrical body by the electrodeposited substrate changes over time in the rotational direction and the axial direction. This occurs in both areas, making it even more effective in making the amount of adhesion uniform.

Note that this point can also be applied to the counter electrode shown in FIG. 8, and can be easily implemented by arranging the plate-shaped or square-shaped member serving as the counter electrode at an angle with respect to the rotation axis. .

In the techniques of Examples 1 to 3 described above, by moving the electrodeposited substrate in the electrodeposition liquid, the scraping effect achieved by conventional liquid stirring is achieved, and the movement of the electrodeposition substrate itself provides stability. This method has the advantage that such a scraping effect can be obtained, that the fluorescent particles are faithfully attached to the segment electrode portions, and that almost no particles are attached to areas other than the electrode portions.

Furthermore, it is relatively easy to set the conditions, and the set conditions are also stable.

Example 4 (see No. 12 to FIG. 18).

In each of the embodiments described so far, the cylindrical body formed by each electrodeposited substrate with the segment electrode forming surface facing outward was configured as a rotating body, but in this example, it is configured as a stationary body. The points are distinctive.

Then, the counter electrode is rotated to stir the liquid.

For example, as shown in FIGS. 12 and 13, an electrodeposited substrate 14 having a large number of segment electrodes 15 is formed as a hexagonal cylindrical body around the outer periphery of the support 13 with the segment electrode forming surface facing outward. It is immovably provided in the electrodeposition liquid 11 in the container 10.

The cylindrical body is covered with a cylindrical counter electrode 21.

A rotating shaft 22 where this counter electrode 21 is located at the center of the cylindrical body
It can be rotated by A power source 16 is connected between the segment electrode 15 and the counter electrode 21.

The power supply 16 is connected to the rotating counter electrode 21 by, for example, guiding a part of the counter electrode 21 to the rotating shaft 22 with a conductor and pressing an elastic conductor plate into contact with the rotating counter electrode 21 in accordance with a conductive means such as a brush of a motor.

Note that a part of the inner wall of the counter electrode 21 protrudes convexly inward parallel to the rotating shaft 22 in correspondence with each segment electrode row, and constitutes a stirring blade 23, and as the counter electrode rotates. Makes liquid stirring easy.

In this way, if similar protrusions are provided not only on the inner wall of the counter electrode 21 but also on the outer wall, the stirring and circulation of the electrodeposition liquid will be made more active.

The rotational speed of the counter electrode 21 is approximately 10 to 103 orders of magnitude as estimated by the linear velocity (mm/5ee) of the liquid on the surface to be electrodeposited. It can be easily set by taking into account conditions such as rotation speed, viscosity of the electrodeposition liquid, etc.

In this case, 1. Since the adhesion or scraping effect of the liquid flow on the surface to be electrodeposited varies depending on the charge amount, mobility, etc. of the particles, these factors should be taken into consideration when setting.

Next, in the example shown in FIGS. 14 and 15, the counter electrode 21
The main feature is the shape of 0, and the other configurations are basically the same as those explained in FIGS. 12 and 13 above.

As shown in the cylindrical inner wall of the counter electrode 210,
A protrusion 230 is provided obliquely with respect to the rotation axis of the cylindrical body, and also serves as a stirring blade.

For example, when the counter electrode 210 rotates clockwise as shown by the arrow, the electrodeposition liquid is stirred so as to flow upward, and when the counter electrode 210 rotates counterclockwise, the electrodeposition liquid flows upward. Since the liquid is stirred so as to be moved downward, liquid flow occurs in both directions of the rotation direction of the counter electrode and the direction of the rotation axis, and furthermore, the electric field changes over time in both directions. Therefore, the liquid stirring effect can be obtained both physically and electrically, which is more effective.

The embodiment shown in FIG. It constitutes 26. This counter electrode 24 is also driven once, but the structure of the protrusion 26 and window 25 makes it easy to obtain a desired liquid flow on the surface to be electrodeposited, and the electrodeposition liquid flows inside and outside of the counter electrode Vi 24. By flowing, an even better stirring effect can be obtained.

As an example of forming a window, as shown in FIG.
As shown in FIG. 18, the direction of the slit of the window 250 is parallel to the rotation axis 22.
In addition, although not shown in the figure, there are various patterns such as those that are not slit-shaped but circular and have protrusions bent inward, and those that have a mesh in the window. is possible.

When the mesh is provided, it has the effect of removing aggregated particles and foreign matter.

Windows with these various patterns are appropriately selected in consideration of the difficulty of manufacturing, the quality of adhesion of phosphor particles, etc.

Example 5 (see FIGS. 19 and 20).

In this example, the counter electrode is constructed in accordance with the example shown in FIG. 12 in the previous example, and is rotatable. Therefore,
They are indicated by the same reference numerals as in the figure. As shown in FIGS. 19 and 20, the electrodeposited substrate 14 is formed into a cylindrical shape with the surface to be electrodeposited on the outside. Adjacent electrodeposited substrates are assembled with a gap left between them in order to allow flow into the inside, and a mesh serving as a communication member 260 is provided in this gap. In this manner, by interposing the communication member 260, the electrodeposition liquid flows into the interior of the cylindrical body as shown by the arrow in FIG. 19 in accordance with the rotation of the counter electrode 21. will be carried out effectively.

Note that the communication member is not limited to a mesh, and may be a member with holes formed at appropriate intervals and with an appropriate diameter.

As described above, in Examples 4 and 5, since the counter electrode is moved near the electrodeposited surface of the electrodeposited substrate fixed immovably, the effect of scraping off the phosphor particles by stirring the liquid is reduced. It has the advantage that it can be obtained stably, that the phosphor particles faithfully adhere to the segment electrode portions, and that almost no particles adhere to areas other than the electrode portions.

Example 6 (see FIGS. 21 and 22).

In FIGS. 21 and 22, the electrodeposited substrate 14 is configured as a hexagonal cylindrical body with the surface on which the segment electrodes 15 are formed inside, and is rotatable about a rotating shaft 27.

The electrodeposition substrate 14 is immersed in the electrodeposition liquid 11 in the container 10, and is fixed to a rotating shaft 27 which also serves as a counter electrode.

By rotating the rotating shaft 27, the electrodeposited substrate 14 also rotates at a constant speed.

Therefore, an electric field is generated between the segment electrode 15, which is the surface to be electrodeposited, and the rotating shaft 27, which is the counter electrode, by the action of the power source 16, and the desired adhesion of the phosphor particles is carried out.

As shown in FIG. 22, if a stirring blade 28 is provided at the lower end of the rotating shaft 27, the liquid can be stirred more effectively.

The rotation of the electrodeposited substrate 14 is at a linear velocity (mm/5ee) of lO
~103 order, and this can be easily set based on the configuration of the polygonal cylinder and its rotation speed, but the adhesion or scraping effect will vary depending on the viscosity of the electrodeposition liquid, the amount of charge of the phosphor particles, etc. Therefore, these factors should be taken into consideration when setting.

Example 7 (see FIGS. 23 to 27).

In FIGS. 23 and 24, the structure of the hexagonal cylindrical body by the electrodeposited substrate 14 is distinctive, and the other structures are basically the same as the examples shown in FIGS. 21 and 22.

As shown in the figure, for example, mesh-shaped communication members 29 are interposed upstream and downstream in the rotational direction of the electrodeposited substrate 14,
Since the electrodeposition liquid can be circulated in this part, in addition to the liquid stirring effect, it also functions as a so-called filter to remove aggregated particles, foreign matter, etc.

As the communication member 29, in addition to a mesh shape as shown in FIG. 24, various other shapes such as a hole shape as shown in FIG. 25, and a slit shape as shown in FIGS. 26 and 27 can be applied. . In that case, in order to ensure smooth and stable inflow of the electrodeposited liquid, it is better to bend portions such as holes and slits outward to provide protrusions.

Note that openings such as slits in the communication member 29 do not need to be provided on both bent surfaces, and may be inserted through the arrows shown as inflow paths in FIG. 23, for example, in relation to the rotational direction of the cylindrical body. What is necessary is just to provide it in at least one of the bending parts corresponding to the part.

Example 8 (see FIGS. 28 to 33).

In this example, the counter electrode 30 is configured as a fixed shaft having a regular uneven shape arranged at the center of a cylindrical body, and as the electrodeposited substrate 14 rotates around this, the electric field changes over time. It is configured to do so.

In the illustrated example, counter electrodes 30 are disposed intermittently with respect to each electrodeposited substrate 14.

In this example, in addition to the liquid stirring effect, there is also an electric liquid stirring effect, and furthermore, the particles are not always deposited in one direction, but are deposited little by little, so the amount of deposition can be equalized and controlled. It is also advantageous in terms of ease of use.

Examples of the configuration of the counter electrode 30 include FIGS. 28, 29,
In addition to the example in which three convex portions are formed at equal intervals as shown in FIG.
It can be implemented in various shapes such as a brush shape as shown in the figure or a triangular prism shape as shown in FIG. 33.

Among the above examples, the helical configuration shown in FIG. 31 is more effective because the electric field on the electrodeposited substrate changes over time in both the rotational direction and the axial direction. .

Example 9 (see FIGS. 34 to 38).

In this example, an electrodeposited substrate 1 having a large number of segment electrodes 2 is used.
4 is formed into a hexagonal cylindrical body with the segment electrode forming surface facing inside, and is fixed in the electrodeposition liquid 11 of the container 10 via a support member 31.

A counter electrode 32 is set at the center of the cylindrical body as a rotating shaft. An electric field is created by the power source 16 between the opposing electrode 32 and each segment electrode 2, and this electric field causes the fluorescent particles to adhere to the segment electrodes.

As shown in FIGS. 34 and 36, the counter electrode 32 has six convex stripes at equal intervals corresponding to each electrodeposited substrate. Stirring is performed, resulting in uniform deposition of the phosphor particles.

In addition, also at the lower end of the counter electrode 32 in FIG.

A dedicated stirring blade 33 is attached.

In addition to the example shown in FIG. 36, the counter electrode may have a shape similar to that shown in FIG. 30, FIG. 31, and FIG. There are some types with a 200 mm diameter, and others with a plate shape as shown in FIG. 38.

Among the above examples regarding the shape of the counter electrode, FIGS. 31 and 37
In the example shown in the figure, since the protrusions are formed in a helical shape, the liquid flow and electric field that occur in response to the rotation of the counter electrode change over time in both the rotational direction and the axial direction, resulting in uniform phosphor formation. It becomes more effective in adhesion.

Here, the rotational speed of the counter electrode 32 is estimated from the linear velocity (mm/5ee) of the liquid on the electrodeposition surface, that is, the segment electrode 2, and is suitably about 10 to 103 orders of magnitude.

The above values are easily set by taking into consideration the configuration of the counter electrode, rotational speed, liquid viscosity, etc.; Alternatively, since the scraping effect also differs, these factors are also taken into consideration when setting.

Example 10 (see FIGS. 39 to 43).

This example is similar to Example 9 except that the structure of the cylindrical body in Example 9 is slightly changed.

The change is caused by the liquid communication member 3 between each electrodeposited substrate.
4 is interposed. Examples of the shape of the communication member 34 include a mesh shape shown in FIGS. 39 and 40, a perforated shape shown in FIG. 41, and a slit shape shown in FIGS. 42 and 43.

In the above examples, in the case of holes, slits, etc., forming protrusions by bending the hole portions inward or outward is effective in smoothing the liquid flow.

It is sufficient that these communicating members 34 form a communicating portion on at least one of the bent pieces corresponding to the rotating direction of the counter electrode 320, and there is no need to provide them on both sides. For example, in FIG. 39, a liquid flow is generated in the left communication portion of the bent piece of the communication member 34 as the counter electrode 32 rotates counterclockwise. In addition to the liquid stirring effect, the communication portion also has a so-called filter effect for removing aggregated particles, foreign matter, and the like.

Example 11 (see FIGS. 44 and 45).

In this example, the polygonal electrodeposition substrate constitutes a part of a container containing the electrodeposition liquid.

That is, the electrodeposited substrate constitutes a part of the inner wall of the container, and other points are the same as in Example 9.

(Effects) The present invention performs electrodeposition while relatively moving a counter electrode placed opposite an electrodeposition substrate in an electrodeposition solution, which is a method of electrodepositing fluorescent particles by stirring the liquid in the conventional method. The phosphor particles have a scraping effect, and because they are moved relative to the counter electrode near the surface to be electrodeposited, the above effect can be stably obtained.As a result, even if the arrangement density is high, the phosphor particles are densely attached to the segment electrode part. death,
Moreover, it has the effect that it hardly adheres to areas other than the segment electrode portions.

[Brief explanation of the drawing]

FIG. 1 is an axially perpendicular sectional view of the electrodeposited substrate and the counter electrode in the container, illustrating an example of the structure of the electrodeposited substrate suitable for carrying out the present invention, FIG. 2 is a side view corresponding to the above figure, and FIG. FIG. 4 is a side view corresponding to the above figure, and FIG. 5 to FIG. FIG. 8 is a perspective view of a cylindrical counter electrode, and FIG. FIG. 9 is a perspective view of the counter electrode in FIG. 10, FIG. 11 is a side view illustrating another example of the counter electrode in the same figure, and FIG. 12 is a diagram illustrating an example of the configuration of an electrodeposited substrate suitable for carrying out the present invention. FIG. 13 is a side view corresponding to the above figure, and FIG. 14 illustrates an example of the configuration of an electrodeposited substrate suitable for carrying out the present invention together with a counter electrode. Axis-perpendicular sectional view, No. 15
The figure is a side view of the same figure as above, FIG. 16 is an axis-perpendicular sectional view illustrating an example of the structure of an electrodeposited substrate suitable for carrying out the present invention together with a counter electrode, FIG. 17 is a side view corresponding to the same figure as above, and FIG. 19 is a side view illustrating the case where the window direction is inclined in the same figure as above, FIG. 19 is a cross-sectional view perpendicular to the axis illustrating an example of the configuration of an electrodeposited substrate suitable for carrying out the present invention together with a counter electrode, and FIG. A perspective view illustrating the structure of the electrodeposited substrate in the same figure as above.
Fig. 1 is an axis-perpendicular sectional view illustrating a configuration example of an electrodeposited substrate suitable for carrying out the present invention, Fig. 22 is a side view corresponding to the above figure of the electrodeposited substrate in a container, and Fig. 23 is a diagram illustrating an example of the structure of an electrodeposited substrate suitable for carrying out the present invention. FIG. 24 is a perspective view of the above figure, FIGS. 25 to 27 are perspective views explaining various aspects of the communication member, and FIG. FIG. 29 is a side view corresponding to the above figure of the electrodeposited substrate in the container; FIG. 30 to FIG. FIG. 34 is a perspective view illustrating various aspects of the counter electrode, FIG. 34 is a cross-sectional view perpendicular to the axis of the electrodeposited substrate and the counter electrode, explaining an example of the structure of the electrodeposited substrate suitable for implementing the present invention, and FIG. 35 is a perspective view illustrating various aspects of the counter electrode. 36 to 38 are perspective views illustrating configuration examples of various counter electrodes, and FIG. 39 illustrates a configuration example of an electrodeposition substrate suitable for carrying out the present invention. FIGS. 40 to 43 are perspective views illustrating various aspects of the communicating member, and FIG. 44 illustrates an example of the configuration of an electrodeposited substrate suitable for carrying out the present invention. FIG. 45 is a side view corresponding to the above figure, and FIG. 46 is an explanatory diagram of the prior art. DESCRIPTION OF SYMBOLS 10... Container, 11... Electrodeposition liquid, 14... Electrodeposition substrate, 15... Segment electrode, 16... Electrodeposition g. Figure 1 2rl! :i Figure 4 Figure 5 Figure 1 Figure 7 Figure 3 Figure 1 Figure 8 Figure zj Figure 27 Figure 29 Figure 3e Figure y @Jz Figure, f3 Figure Fig. 41 Fig. 42 rM Fig. 4y

Claims (1)

[Claims] 1. A method for electrodepositing phosphor particles on a large number of segment electrodes arranged in an array on an electrodeposition substrate, the method comprising storing an electrodeposition liquid in which phosphor particles are dispersed in a container. The electrodeposited substrates are arranged in a polygonal shape around the axis in this container, and counter electrodes are provided to face the segment electrodes located on the surface of each electrodeposited substrate, and a power source is connected between the counter electrodes and the segment electrodes. connecting the electrodes to form an electric field, and electrodepositing phosphor particles on the segment electrodes while relatively moving the polygonal electrodeposited substrate and the counter electrode in an electrodeposition solution. An electrodeposition method characterized by: 2. The electrodeposition method according to claim 1, characterized in that each electrodeposition substrate formed in a polygonal shape is configured as a rotating body with the segment electrode forming surface of each electrodeposition substrate facing outside. . 3. The electrodeposition method according to claim 2, characterized in that the counter electrode is constituted by the inner wall of a container containing an electrodeposition liquid. 4. The electrodeposition method according to claim 2, wherein the counter electrode is composed of a mesh-like or perforated conductor that covers the outer periphery of each electrodeposited substrate having a polygonal shape. 5. The electrodeposition method according to claim 2, characterized in that a counter electrode is disposed intermittently on each electrodeposition substrate. 6. The electrodeposition according to claim 1, wherein each electrodeposition substrate having a polygonal shape is constructed as a stationary body with the segment electrode forming surface of each electrodeposition substrate facing outside. Method. 7. The electrodeposition method according to claim 6, wherein the counter electrode is a part of the inner wall of a rotating body that covers the outer periphery of each electrodeposition substrate having a polygonal shape. 8. The electrodeposition method according to claim 7, characterized in that the counter electrode protrudes from the inner wall of the rotating body and also serves as a stirring blade for the electrodeposition liquid. 9. The electrodeposition method according to claim 8, wherein the counter electrode is arranged around each electrodeposition substrate having a polygonal shape and inclined with respect to the rotation axis. 10. In claim 6 or motion 7,
An electrodeposition method characterized in that a communication member is interposed between each of the electrodeposition substrates having a polygonal shape. 11. The electrodeposition according to claim 1, wherein each electrodeposition substrate having a polygonal shape is configured as a rotating body with the segment electrode forming surface of each electrodeposition substrate facing inside. Method. 12. In claim 11, the counter electrode is
An electrodeposition method characterized by a fixed shaft or a rotating shaft placed at the center of a polygonal shape formed by an electrodeposition substrate. 13. The electrodeposition method according to claim 1, characterized in that each polygonal electrodeposited substrate is constructed as an immovable body with the segment electrode forming surface of each electrodeposited substrate inside. . 14. In claim 13, the counter electrode is
An electrodeposition method characterized in that a rotation axis is placed at the center of a polygonal shape formed by an electrodeposition substrate. 15. The electrodeposition method according to claim 11 or claim 13, characterized in that a communicating member is interposed between each electrodeposition substrate of the polygonal electrodeposition substrate. 16. The electrodeposition method according to claim 12 or claim 14, characterized in that the counter electrode is intermittently arranged in a convex manner around the axis with respect to each electrodeposition substrate. 17. The electrodeposition method according to claim 14, characterized in that the counter electrode protrudes from the circumferential surface of the shaft and also serves as a stirring blade for the electrodeposition liquid. 18. The electrodeposition method according to claim 17, characterized in that a communicating member is interposed between each of the electrodeposition substrates having a polygonal shape. 19. The electrodeposition method according to claim 17, wherein the polygonal electrodeposition substrate constitutes a part of the inner wall of a container containing an electrodeposition solution.