JP2002011996A - Display implement of magnetic substance display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an arbitrary change of a density of display lines in the case of displaying a display implement and easily writing even in the case of writing a new character during closely gathering characters. SOLUTION: In the display implement of a magnetic substance display panel, a magnetic member formed of a magnetic substance is provided at a front part of a display implement body of the implement, an elastic element for elastically rebounding a distal end of the magnetic member so as to separate the distal end of the magnetic member from a distal end of a magnet adjacent to the distal end of the magnetic member and provided to magnetize the distal end of the magnetic member as a pole for a magnetic substance display so that an elastic force of the element is set larger than a magnetizing force of the magnet to the magnetic member and set smaller than a pressing force of the distal end to be elastically deformed at a surface plate, and the distal end of the magnetic member is pressed against the elastic force of the element to thereby increase the magnetic force of the pole of the distal end of the magnetic member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverted display magnetic material having an S pole and an N pole, wherein the S pole side surface portion and the N pole side surface portion are colored in different colors. Reversible magnetic display panel and display in which the magnetic poles of the reversible display magnetic body accommodated between a transparent front plate and a rear plate separated by a predetermined distance and dispersed therein are arranged in a fixed direction to perform display Dispersion liquid in which the display magnetic material is dispersed in a colored liquid having a yield value, the electrophoretic display magnetic material accommodated between the transparent front plate and the back plate separated by a predetermined distance is caused to migrate toward the front plate. The present invention relates to a display device of a magnetophoretic magnetic display panel that performs display by using a display device.

[0002]

2. Description of the Related Art FIG. 7 shows a magnetic material for inversion display having an S pole and an N pole and having the S pole side surface portion and the N pole side surface portion colored differently in a liquid having a yield value. Magnetic inversion type magnetic display panel and magnetic inversion type magnetic display panel, in which the dispersed liquid is provided between a transparent front plate and a back plate spaced apart by a predetermined distance, and the magnetic poles of the reversal display magnetic body are arranged in a certain direction to perform display. It is explanatory drawing of the conventional display tool which writes on a body display panel, and the display erasing member which erases display information. still,
A magnetic reversal type magnetic display panel as shown in FIG. 7 is conventionally known, and is known, for example, from Japanese Patent Publication No. 1982/32796. In FIG. 7, the magnetic inversion type magnetic display panel 01 has a transparent front plate 02, a transparent back plate 03, and a spacer 04 having a honeycomb structure for maintaining an interval between the two plates 02 and 03. . Both boards 02,
The dispersion liquid 06 contained in the space between the liquid crystals 03 is a liquid in which the reversal display magnetic substance 07 is dispersed in the liquid 08 having a yield value, and the reversal display magnetic substance 07 is colored S in green.
It has a pole side surface portion and an N pole side surface portion colored white.

The magnetic reversal type magnetic display panel 0 shown in FIG.
For example, when writing display information to a transparent surface plate 0,
In the case where the N pole side surface portion of the inverted display magnetic material 07 is arranged in a fixed direction in 2, the display surface becomes white, and the tip provided at the front of the pen-shaped display tool 09 has the magnetic material display. When a character is written with the magnetic member 010 magnetized to the N pole as the magnetic pole for use in contact with the surface plate 02, the reversing display magnetic body 07 is inverted and the green S pole side surface portion is disposed on the surface plate 02 side. Is done. In this case, green display is performed on a white background.

A display erasing tool 011 is used to erase the display of the magnetic reversal type magnetic display panel 01 in which green is displayed on the white background to make the display surface white. The display erasing tool 011 is a flat permanent magnet, and is composed of S pole 012 and N pole 013 magnets. As shown in FIG. 7, when the S pole 012 side of the display erasing tool 011 is brought into contact with the surface plate 02 of the magnetic inversion type magnetic display panel 01, the inverted display magnetic substance 07 is inverted and the N pole side surface portion (white portion) ) Is arranged on the surface plate 02 side, and the display surface becomes white.
Incidentally, in FIG. 7, the reversal display magnetic body 0 due to the magnetic force of the magnetic poles
The influence on 7 is indicated by a dashed line with an arrow, the direction of the arrow indicates the direction of the received magnetic force, and the length of the dashed line indicates the magnitude of the magnetic force.

[0005] Fig. 8 shows a magnetic display display material in which a dispersion liquid in which a migration display magnetic material is dispersed in a colored liquid having a yield value is accommodated between a transparent front plate and a rear plate separated by a predetermined distance. FIG. 5 is an explanatory diagram of a magnetophoretic magnetic display panel that migrates to the side to perform display, a conventional display tool that writes on the magnetophoretic magnetic display panel, and a display erasing member that erases display information. Incidentally, a magnetophoretic magnetic display panel as shown in FIG.
No. 47676. In FIG.
The magnetophoretic magnetic display panel 01 'has a transparent surface plate 0'.
2 and a transparent back plate 03, and a honeycomb-structured spacer 04 for maintaining an interval between the two plates 02, 03. Dispersed liquid 0 contained in the space between both plates 02 and 03
6 ′ is a liquid in which a black electrophoretic display magnetic substance 07 ′ is dispersed in a white colored liquid 08 ′ having a yield value.

The magnetic display panel 0 shown in FIG.
When the display information is written in 1 ′, for example, when the electrophoretic display magnetic substance 07 ′ is migrated from the front plate 02 to the rear plate 03, the display surface is in a white state, and the pen-shaped display tool 09 is displayed. When characters are written in a state in which the front end provided at the front portion is in contact with the surface plate 02 with the magnetic member 010 magnetized to the N pole as the magnetic pole for magnetic substance display, the magnetic substance for electrophoretic display 07 'is obtained.
Migrates and is arranged on the surface plate 02 side. In this case, black display is performed on a white background.

When the display of the magnetophoretic magnetic display panel 01 'in which black is displayed on the white background is erased to make the display surface white, a display erasing tool 011 is used. The display erasing tool 011 is a flat permanent magnet, and is composed of S pole 012 and N pole 013 magnets. As shown in FIG. 8, the display erasing device 011 has the S pole 012 side (or N
When the pole 013 side is brought into contact with the back plate 03 of the magnetophoretic magnetic display panel 01 ', the electrophoretic display magnetic body 07' migrates and is arranged on the back plate 03 side, and the display surface becomes white. still,
In FIG. 8, the magnetic substance 07 ′ for electrophoretic display by the magnetic force of the magnetic pole.
The effect of the magnetic force is indicated by a dashed line with an arrow, the direction of the arrow indicates the direction of the received magnetic force, and the length of the dashed line indicates the magnitude of the magnetic force.

[0008]

By the way, the magnetic member 010 provided at the front of the conventional display tool 09 has its tip end magnetized to a N pole with a constant magnetic force as a magnetic display magnetic pole.
Therefore, the display tool 09 could only write the display lines on the display surface with a certain density. When the magnetic member 010 is brought into contact with a target portion of the surface plate 02 in order to write a character with the display tool 09, as shown in FIGS.
However, even if the user merely glazes in front of the target location, the inverted display magnetic material 07 (electrophoretic display magnetic material 07 ′) is affected by the magnetic force of the magnetic member 010, and unnecessary display lines are written thinly on the display surface. In the end (the range of L in the figure), especially when writing a new character while the characters are dense, if the magnetic member 010 is not carefully brought into vertical contact with the intended position, it is already displayed. There is a problem that unnecessary display lines are also written dirty on the characters that are being written.

The present invention has been made in view of the above circumstances and the results of the study.
The following content is an issue. It is necessary to be able to arbitrarily change the density of display lines when displaying with a display tool, and to be able to easily write even when writing new characters while the characters are dense. Make it an issue.

[0010]

Next, the present invention devised to solve the above problems will be described. "1. A dispersion liquid in which a magnetic material for inversion display having an S-pole and an N-pole and having an S-pole side surface portion and a N-pole side surface portion colored differently is dispersed in a liquid having a yield value is predetermined A magnetic inversion type magnetic display panel and a magnetic display display magnetic body which perform display by arranging the magnetic poles of the magnetic material for inversion display housed between the transparent front plate and the back plate spaced apart in a fixed direction and the magnetic material for electrophoretic display have a yield value. Magnetophoretic magnetism in which the dispersed liquid dispersed in the colored liquid having the electrophoretic display magnetic body, which is accommodated between the transparent front plate and the back plate separated by a predetermined distance, migrates to the front plate side to perform display. In the display tool of the body display panel,
The display device is provided with a magnetic member formed of a magnetic material at a front portion of the display device main body, and the tip of the magnetic member is adjacent to the magnetic member, and the tip of the magnetic member is magnetized as a magnetic pole for magnetic material display. An elastic body is provided that repels away from the tip of the magnet provided so that the elastic force of the elastic body is set to be greater than the magnetic adhesion of the magnet to the magnetic member, and that the surface plate has a plasticity. The magnetic force of the magnetic pole at the distal end of the magnetic member is increased by being set to be smaller than the pressing force of the distal end where the deformation occurs, and pressing the distal end of the magnetic member against the elastic force of the elastic body. It is characterized by being performed. 2. The elastic body is formed integrally with a rear part of the magnetic member. 3. The elastic body is formed integrally with a front portion of the display tool main body. "

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Invention and Operation and Effect) First
In the invention, the display device is provided with a magnetic member formed of a magnetic material at a front portion of the display device main body, and the distal end portion of the magnetic member is adjacent to the magnetic member, and the distal end portion of the magnetic member is used for displaying a magnetic material. An elastic body is provided that repels away from the tip of a magnet provided to be magnetized as a magnetic pole, the elasticity of the elastic body is set to be greater than the magnetic adhesion of the magnet to the magnetic member, and It is set smaller than the pressing force of the front end where the plastic deformation of the face plate occurs, and presses the front end of the magnetic member against the resilience of the elastic body, thereby reducing the magnetic pole of the front end of the magnetic member. The magnetic force is increased by adjusting the pressing force when pressing the front end of the magnetic member against the surface plate of the magnetic display panel so that the front end of the magnetic member approaches or moves away from the front end of the magnet. As a result, the magnetic force at the tip of the magnetic member increases and decreases, and the density of the display line can be changed arbitrarily. In addition, the tip of the magnetic member comes into contact with the surface plate of the magnetic display panel and is pressed. Up to this point, the magnetic force at the tip is weak, so when writing a new character while the characters are dense, if the magnetic member just grabs in front of the target location, the magnetic force at the tip will cause the magnetic material for reverse display or migration. This is because the display magnetic body is not affected, and an unnecessary display line is not written on the already displayed character. Also, since the elastic force of the elastic body is set to be larger than the magnetizing force of the magnet with respect to the magnetic member, the magnetic force is generated by the elastic body of the elastic body when the pressing force is released even when the distal end of the magnetic member is pressed. The member can be reliably returned to the original position. In addition, by setting the elastic force of the elastic body to be smaller than the pressing force of the front end where the plastic deformation of the surface plate occurs, the elastic body can be elastically deformed without damaging the surface plate, and the elastic body can be moderately deformed. The writing force can be improved by the resilience.

The display device main body can be formed by appropriately selecting a known material such as resin or metal. However, in consideration of the magnetic field characteristics of the magnet to be provided, a non-magnetic material is used. It is preferable that the magnetic field does not affect the magnetic field. Also, by forming the appearance in the form of a commonly used writing instrument, it is easy to hold by hand during use, which is preferable. Also, the magnetic member can be appropriately selected from a known material such as steel, which is a ferromagnetic material. It is preferable to use a metal wire that can be easily formed into various forms. Conventionally, a magnet was used as a magnetic member even when the line width of the display line was to be reduced.Thus, no matter how thin it was to be formed, a certain thickness was required so that the magnet would not be brittle. In the case where the magnetic member is magnetized by an adjacent magnet as in the embodiment of the present invention, the magnetic member can be formed sufficiently thin by using a metal wire. The magnet is the S pole (or N pole) of the magnet
When the magnetic member is adjacent to the magnetic member, a magnetic member that can magnetize the tip of the magnetic member to the S pole (or the N pole) by the magnetic force of the magnet can be used. In the present invention, the state in which the magnet is adjacent to the magnetic member refers to a state in which the magnet is in contact with or in close proximity with a slight gap. The form and number of the magnets used are not limited, and a plurality of magnets may be used in combination.
Further, the elastic body may be appropriately selected from those having a known elasticity such as a coil spring and a cushion rubber. However, in consideration of the magnetic field characteristics of the magnet to be provided, a non-magnetic material is used. It is preferable that the magnetic field is not affected.

(Second invention and operation and effect) In the second invention, the elastic body is formed integrally with the rear portion of the magnetic member because the number of parts is reduced, the structure is simplified, and the cost is reduced. This is because there is an operational effect of being excellent in terms of performance.

(Third invention and operation and effect) In the third invention, the elastic body is formed integrally with the front portion of the display tool main body because the number of parts is reduced and the structure is simplified. This is because, in addition to being excellent in cost, it is possible to expose the elastic body such as the coil spring shape to the outside, so that a unique appearance can be obtained.

[0015]

Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In this embodiment, the magnetic display panel is S
A transparent surface plate 02 in which a dispersing liquid 08 in which a reversal display magnetic substance 07 colored with a green surface on the pole side and a white color on the N pole side surface is dispersed in a liquid 06 having a yield value is separated by a predetermined distance; The description will be given using a magnetic inversion type magnetic display panel 01 having a structure in which the magnetic poles of the inversion display magnetic material 07 housed between the back plates 03 are arranged in a fixed direction to perform display.

FIG. 1 is an overall side view of a display device according to a first embodiment. 2A and 2B are explanatory views of the internal structure of the display tool and the magnetic display panel shown in FIG. 1. FIG. 2A is a cross-sectional view of the entire structure, FIG. 2B is a side view as viewed from an arrow IIA in FIG. 2A, and FIG. FIG. 2D is a cross-sectional view when the distal end portion of the magnetic member 2A is pressed against the surface plate, and FIG. 2D is a side view as viewed from the arrow IIB in FIG. 2C.

The appearance of the display device according to the first embodiment will be described with reference to FIG. The display tool 1 has a resin base 3 fixed in front of the barrel 2 to form a display tool body 4. A magnetic member 5 formed of a round bar-shaped steel wire is slidably inserted into a round hole 3 a provided at the tip of the base 3. The shaft cylinder 2 is a resin molded body having an outer diameter of 12 mm and a length of 100 mm, and is a bottomed cylinder having a circular cross section.

Next, the internal structure of the display device of the first embodiment will be described with reference to FIG. The display tool body 4 has an empty space 4 inside.
00 is formed. A female screw portion 2 a is formed on a front inner peripheral surface of the barrel 2, and a male screw portion 3 a is formed on a rear outer peripheral surface of the base 3.
b was formed and screwed together and fixed. In addition, shaft cylinder 2
The round bar-shaped magnet 6
Are pressed and fixed by immersing the entire length with the N pole facing forward.

In the empty space 400, a circular intermediate member 7 is provided.
The intermediate portion of the magnetic member 5 is press-fitted and fixed in a round hole 7 a provided in the center of the intermediate member 7.
Further, an elastic body 8 is disposed between a flange 7b formed at the rear of the intermediate member 7 and a step 2c formed at the middle of the inner surface of the barrel 2. The elastic body 8 is made of a magnetic material. Tip 5 of member 5
a is repelled away from the tip 6 a of the magnet 6. Therefore, the display tool 1 in the state of FIG.
Since the N pole of the tip 6a is separated from the rear end 5b of the magnetic member 5 (h0), the tip 5a of the magnetic member 5 is magnetized to the N pole with a weak magnetic force. In addition, the display tool 1 in the state of FIG. 2D presses the tip 5a of the magnet 6 in a state where the tip 5a of the magnetic member 5 in FIG. 2B is pressed against the surface plate 02 against the elastic force of the elastic body 8. The N pole approaches the rear end 5b of the magnetic member 5 (h1), and the front end 5a of the magnetic member 5 is magnetized to the N pole by a strong magnetic force.

Then, when writing was actually performed on the magnetic reversal type magnetic display panel 01 with the display tool 1 of Example 1,
In the display device 1 in the state (h0) of FIG. 2B, a thin green display line could be written on a white background. Further, in the display device 1 in the state (h1) of FIG. 2D, a green display line could be written on a white background darkly. In addition, the distance between the front end 6a of the magnet 6 and the rear end 5b of the magnetic member 5 is different from the state shown in FIG.
When the pressing force was adjusted so as to be in the middle of the state (h1) in the state D, a green display line was displayed on a white background in the state (h1) in FIG.
It was possible to write with the middle density between the display line of (0) and the display line of the state (h1) of FIG. 2D.

That is, in the display device 1 according to the first embodiment, the front end 5 a of the magnetic member 5 is attached to the surface plate 0 against the elastic force of the elastic body 8.
The depth of the display line can be arbitrarily changed by adjusting the pressing force when pressing to 2. Also,
In the state (h0) of FIG. 2B, the magnetic force of the distal end portion 5a of the magnetic member 5 is weak. 07 is not affected, and no unnecessary display line is written on the already displayed character.

(Embodiment 2) FIG. 3 is an overall side view of a display device of Embodiment 2. 4 is an explanatory view of the internal structure of the display tool and the magnetic display panel shown in FIG. 3, FIG. 4A is a cross-sectional view of the entire structure, FIG. 4B is a side view as viewed from an arrow IVA in FIG. 4A, and FIG. FIG. 4D is a cross-sectional view when the tip of the magnetic member of FIG. 4A is pressed against the surface plate, and FIG. 4D is a side view as viewed from the arrow IVB in FIG. 4C.

The appearance of the display device according to the second embodiment will be described with reference to FIG. The display tool 1 has a resin base 3 fixed in front of the barrel 2 to form a display tool body 4. A magnetic member 5 formed of a round bar-shaped steel wire is slidably inserted into a round hole 3 a provided at the tip of the base 3. The shaft cylinder 2 is a resin molded body having an outer diameter of 12 mm and a length of 100 mm, and is a bottomed cylinder having a circular cross section.

Next, the internal structure of the display device according to the second embodiment will be described with reference to FIG. The display tool body 4 has an empty space 4 inside.
00 is formed. A female screw portion 2 a is formed on a front inner peripheral surface of the barrel 2, and a male screw portion 3 a is formed on a rear outer peripheral surface of the base 3.
b was formed and screwed together and fixed. In addition, shaft cylinder 2
The round bar-shaped magnet 6
Are press-fitted and fixed by immersing the rear and middle portions with the N pole facing forward.

The rear portion of the magnetic member 5 slidably inserted into the round hole 3a is formed into a coil spring shape to form an elastic body 8, and the front portion 3c of the inner surface of the base 3 and the inside of the shaft cylinder 2 are formed. The elastic body 8 is disposed between the stepped portion 2 c formed in the middle portion of the side surface and the elastic body 8 resiliently moves the tip 5 a of the magnetic member 5 away from the tip 6 a of the magnet 6. Therefore, the display tool 1 in the state of FIG.
Is separated from the rear end 5b of the front linear portion of the magnetic member 5 (h0), so the front end 5a of the magnetic member 5 is magnetized to the N pole with a weak magnetic force. Further, the display tool 1 in the state of FIG. 4C has a state in which the distal end portion 5a of the magnetic member 5 of FIG. 2A is pressed against the surface plate 02 against the elastic force of the elastic body 8 and the distal end portion 6a of the magnet 6 is pressed. The N pole is the rear end 5 of the front linear portion of the magnetic member 5.
When approaching b (h1), the tip 5a of the magnetic member 5 is magnetized to the N pole by a strong magnetic force.

Then, when writing was actually performed on the magnetic reversal type magnetic display panel 01 with the display tool 1 of Example 2,
In the display tool 1 in the state (h0) in FIG. 4B, a thin green display line could be written on a white background. Further, in the display device 1 in the state (h1) of FIG. 4D, a green display line could be written on a white background darkly. Further, the distance between the front end 6a of the magnet 6 and the rear end 5b of the magnetic member 5 is different from the state (h0) in FIG.
When the pressing force was adjusted so as to be in the middle of the state (h1) in the state D, a green display line was displayed on a white background in the state (h1) in FIG.
It was possible to write with the middle density between the display line of (0) and the display line of the state (h1) of FIG. 4D.

That is, in the display device 1 according to the second embodiment, the front end 5 a of the magnetic member 5 is attached to the surface plate 0 against the elastic force of the elastic body 8.
The depth of the display line can be arbitrarily changed by adjusting the pressing force when pressing to 2. Also,
Since the magnetic force of the distal end portion 5a of the magnetic member 5 in the state (h0) of FIG. 4B is weak, if the distal end portion 5a is slightly grazed in front of a target portion during writing, the magnetic material for inversion display is generated by the magnetic force of the distal end portion 5a. 07 is not affected, and no unnecessary display line is written on the already displayed character.

(Embodiment 3) FIG. 5 is an overall side view of a display device of Embodiment 3. 6 is an explanatory view of the internal structure of the display tool and the magnetic display panel shown in FIG. 5, FIG. 6A is a cross-sectional view of the entire structure, FIG. 6B is a side view as viewed from the arrow VIA in FIG. 6A, and FIG. FIG. 6D is a cross-sectional view when the distal end portion of the magnetic member 6A is pressed against the surface plate, and FIG. 6D is a side view as viewed from the arrow VIB in FIG. 6C.

The appearance of the display device of the third embodiment will be described with reference to FIG. The display tool 1 has a resin base 3 fixed to the front of the barrel 2, and a resin-made spiral elastic body 8 fixed to the front end of the base 3 to form a display tool main body 4. A magnetic member 5 made of a round bar-shaped steel wire is slidably inserted into a round hole 3 a provided at the tip of the base 3, and a round hole provided at the tip of the elastic body 8. The magnetic member 5 is press-fitted and fixed to 8a. The shaft cylinder 2 is a resin molded body having an outer diameter of 12 mm and a length of 100 mm, and is a bottomed cylinder having a circular cross section.

Next, the internal structure of the display device according to the third embodiment will be described with reference to FIG. The display tool body 4 has an empty space 4 inside.
00 is formed. A female screw portion 2 a is formed on a front inner peripheral surface of the barrel 2, and a male screw portion 3 a is formed on a rear outer peripheral surface of the base 3.
b was formed and screwed together and fixed. In addition, shaft cylinder 2
The round bar-shaped magnet 6
Are press-fitted and fixed by immersing the rear and middle portions with the N pole facing forward.

Further, the elastic body 8 to which the magnetic member 5 is fixed resiliently moves the tip 5a of the magnetic member 5 away from the tip 6a of the magnet 6. Therefore, in the display tool 1 in the state of FIG. 6A, since the N pole of the tip 6a of the magnet 6 is separated from the rear end 5b of the magnetic member 5 (h0), the tip 5a of the magnetic member 5 has a weak magnetic force. It is magnetized to the N pole. Further, the display tool 1 in the state of FIG. 6C has the distal end portion 5a of the magnet 6 in a state where the distal end portion 5a of the magnetic member 5 of FIG. 6A is pressed against the surface plate 02 against the elastic force of the elastic body 8. The N pole approaches the rear end 5b of the magnetic member 5 (h1), and the front end 5a of the magnetic member 5 is magnetized to the N pole by a strong magnetic force.

Then, when writing was actually performed on the magnetic reversal type magnetic display panel 01 with the display tool 1 of the third embodiment,
In the display tool 1 in the state (h0) of FIG. 6B, a thin green display line could be written on a white background. Further, in the display tool 1 in the state (h1) of FIG. 6D, a green display line could be written on a white background darkly. Further, the distance between the front end 6a of the magnet 6 and the rear end 5b of the magnetic member 5 is different from the state (h0) in FIG.
When the pressing force was adjusted so as to be in the middle of the state (h1) of D, the green display line on the white background was changed to the state (h) of FIG.
It was possible to write with the middle density between the display line of (0) and the display line of the state (h1) of FIG. 6D.

That is, in the display device 1 of the third embodiment, the pressing force when pressing the distal end portion 5a of the magnetic member 5 against the surface plate 02 of the magnetic display panel 01 against the elastic force of the elastic body 8 is reduced. By adjusting, the density of the display line can be arbitrarily changed. In addition, since the magnetic force of the tip 5a of the magnetic member 5 in the state (h0) of FIG. 6B is weak, the tip 5a is only slightly grazed in front of the target portion when writing.
The magnetic force 07 is not affected by the magnetic material 07 for reverse display, and an unnecessary display line is not written on the already displayed character.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the present invention described in the appended claims. It is possible to make changes. In this embodiment, the magnet 06
Is directed forward, the magnetic pole at the tip 5a becomes an N pole, and a green display line is written on a white background.
The front end 5 of the magnetic member 5
The magnetic pole a is an S pole, and a white display line can be written on a green background. Further, in this embodiment, the description has been made using the magnetic inversion type magnetic display panel as the magnetic display panel, but in the display tool of the present invention, the electrophoretic display magnetic substance is dispersed in the colored liquid having a yield value. A similar effect can be obtained with a magnetophoretic magnetic display panel in which a magnetic substance for electrophoretic display, in which a dispersed liquid is accommodated between a transparent front plate and a rear plate separated by a predetermined distance, migrates to the front plate side for display. be able to. The magnetic display panel usable in the display device of the present invention further includes a honeycomb structured spacer and a dispersion liquid (a liquid in which a magnetic substance is dispersed in a liquid having a yield value) between a transparent front plate and a back plate. Instead, the magnetic display panel structure in which the microcapsules containing the dispersion liquid are disposed between the transparent front plate and the back plate may be used.

[0035]

The display tool of the present invention described above has the following effects. It is possible to arbitrarily change the density of display lines when displaying with a display tool, and to easily write even when writing new characters while the characters are dense. In particular, when the display device of the present invention is used for a magnetic display panel of an educational toy for infants, the sensation of a normal writing device in which the density of a writing line changes according to the strength of writing pressure is naturally increased in infanthood. It has the effect that it can be worn.

[Brief description of the drawings]

FIG. 1 is an overall side view of a display device according to a first embodiment.

2 is an explanatory view of the internal structure of the display tool shown in FIG. 1 and a magnetic display panel. FIG. 2A is a cross-sectional view of the entire structure, FIG. 2B is a side view as viewed from an arrow IIA in FIG. 2A, FIG.
FIG. 2C is a cross-sectional view when the tip of the magnetic member of FIG. 2A is pressed against the surface plate, and FIG. 2D is a side view as viewed from the arrow IIB in FIG. 2C.

FIG. 3 is an overall side view of a display device according to a second embodiment.

4 is an explanatory view of the internal structure of the display tool and the magnetic display panel shown in FIG. 3; FIG. 4A is a cross-sectional view of the entire structure; FIG. 4B is a side view as viewed from an arrow IVA in FIG. 4A; FIG. 4C is a cross-sectional view when the tip of the magnetic member of FIG. 4A is pressed against the surface plate, and FIG. 4D is a side view as viewed from the arrow IVB in FIG. 4C.

FIG. 5 is an overall side view of a display device according to a third embodiment.

6 is an explanatory view of the internal structure of the display tool shown in FIG. 5 and a magnetic display panel, FIG. 6A is a cross-sectional view of the entire structure, FIG. 6B is a side view as viewed from an arrow VIA in FIG. 6A, FIG. 6C is a cross-sectional view when the tip of the magnetic member of FIG. 6A is pressed against the surface plate, and FIG. 6D is a side view as viewed from the arrow VIB in FIG. 6C.

FIG. 7 is an explanatory view of a magnetic reversal type magnetic display panel, a conventional display tool for writing on the magnetic reversal type magnetic display panel, and a display erasing member for erasing display information.

FIG. 8 is an explanatory view of a magnetophoretic magnetic display panel, a conventional display tool for writing on the magnetophoretic magnetic display panel, and a display erasing member for erasing display information.

[Explanation of symbols]

01: Magnetic reversal type magnetic display panel, 01 ': Magnetic reversal type magnetic display panel, 02: Transparent front plate, 03: Transparent back plate, 06 (06'): Dispersion liquid, 07: Magnetic for reversal display 07 ': magnetic substance for electrophoretic display, 08: liquid having a yield value, 08': colored liquid having a yield value, 1 ... display tool, 2 ... shaft cylinder, 3 ... base, 4 ... display tool body, 5 …
Magnetic member, 6: magnet, 8: elastic body.

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[Procedure amendment]

[Submission date] July 31, 2000 (2007.3.
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Invention and Operation and Effect) First
In the invention, the display device is provided with a magnetic member formed of a magnetic material at a front portion of the display device main body, and the distal end portion of the magnetic member is adjacent to the magnetic member, and the distal end portion of the magnetic member is used for displaying a magnetic material. An elastic body is provided that repels away from the tip of a magnet provided to be magnetized as a magnetic pole, the elasticity of the elastic body is set to be greater than the magnetic adhesion of the magnet to the magnetic member, and It is set smaller than the pressing force of the front end where the plastic deformation of the face plate occurs, and presses the front end of the magnetic member against the resilience of the elastic body, thereby reducing the magnetic pole of the front end of the magnetic member. The magnetic force is increased by adjusting the pressing force when pressing the front end of the magnetic member against the surface plate of the magnetic display panel so that the front end of the magnetic member approaches or moves away from the front end of the magnet. As a result, the magnetic force at the tip of the magnetic member increases and decreases, and the density of the display line can be changed arbitrarily. In addition, the tip of the magnetic member comes into contact with the surface plate of the magnetic display panel and is pressed. Up to this point, the magnetic force at the tip is weak, so when writing a new character while the characters are dense, if the magnetic member just grabs in front of the target location, the magnetic force at the tip will cause the magnetic material for reverse display or migration. This is because the display magnetic body is not affected, and an unnecessary display line is not written on the already displayed character. Further, by the elastic force of the elastic body is set larger than the magnetic attraction force of the magnet relative to the magnetic member, when released the pressing force even when pressed the tip of the magnetic member, the elastic force of the elastic body The magnetic member can surely return to the original position. In addition, by setting the elastic force of the elastic body to be smaller than the pressing force of the front end at which the plastic deformation of the surface plate occurs, the elastic body can be elastically deformed without damaging the surface plate, and the elastic body can be moderately deformed. The feeling of writing can be improved by the resilience.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

[0015]

Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In this embodiment, the magnetic display panel is S
A transparent surface plate 02 in which a dispersion liquid 06 in which a reversal display magnetic material 07 colored with a green surface on the pole side and a white color on the N pole side surface is dispersed in a liquid 08 having a yield value is separated by a predetermined distance; The description will be given using a magnetic inversion type magnetic display panel 01 having a structure in which the magnetic poles of the inversion display magnetic material 07 housed between the back plates 03 are arranged in a fixed direction to perform display.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

The rear portion of the magnetic member 5 slidably inserted into the round hole 3a is formed into a coil spring shape to form an elastic body 8, and the front portion 3c of the inner surface of the base 3 and the inside of the shaft cylinder 2 are formed. The elastic body 8 is disposed between the stepped portion 2 c formed in the middle portion of the side surface and the elastic body 8 resiliently moves the tip 5 a of the magnetic member 5 away from the tip 6 a of the magnet 6. Therefore, the display tool 1 in the state of FIG.
Is separated from the rear end 5b of the front linear portion of the magnetic member 5 (h0), so the front end 5a of the magnetic member 5 is magnetized to the N pole with a weak magnetic force. Further, the display tool 1 in the state of FIG. 4D is configured such that the distal end portion 5a of the magnetic member 5 of FIG. 4B is pressed against the surface plate 02 against the elasticity of the elastic body 8 and the distal end portion 6a of the magnet 6 is pressed. The N pole is the rear end 5 of the front linear portion of the magnetic member 5.
When approaching b (h1), the tip 5a of the magnetic member 5 is magnetized to the N pole by a strong magnetic force.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction contents]

Further, the elastic body 8 to which the magnetic member 5 is fixed resiliently moves the tip 5a of the magnetic member 5 away from the tip 6a of the magnet 6. Therefore, in the display tool 1 in the state of FIG. 6B , since the N pole of the tip 6a of the magnet 6 is separated from the rear end 5b of the magnetic member 5 (h0), the tip 5a of the magnetic member 5 has a weak magnetic force. It is magnetized to the N pole. Also figure
6D , the tip 5a of the magnetic member 5 in FIG. 6B is pressed against the surface plate 02 against the resilience of the elastic body 8, and the N pole of the tip 6a of the magnet 6 is turned off. When approaching the rear end 5b of the magnetic member 5 (h1), the front end 5a of the magnetic member 5 is magnetized to the N pole by a strong magnetic force.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction contents]

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the present invention described in the appended claims. It is possible to make changes. Incidentally, the magnetic pole of the distal end portion 5a for directing the N pole of the magnet 6 in front in this embodiment becomes a N pole, but a green display lines a white background has been written, the S pole of the magnet 6 in front The tip 5a of the magnetic member 5
Becomes an S pole, and a white display line can be written on a green background. Further, in this embodiment, the description has been made using the magnetic inversion type magnetic display panel as the magnetic display panel, but in the display tool of the present invention, the electrophoretic display magnetic substance is dispersed in the colored liquid having a yield value. A similar effect can be obtained with a magnetophoretic magnetic display panel in which a magnetic substance for electrophoretic display, in which a dispersed liquid is accommodated between a transparent front plate and a rear plate separated by a predetermined distance, migrates to the front plate side for display. be able to. The magnetic display panel usable in the display device of the present invention further includes a honeycomb structured spacer and a dispersion liquid (a liquid in which a magnetic substance is dispersed in a liquid having a yield value) between a transparent front plate and a back plate. Instead, the magnetic display panel structure in which the microcapsules containing the dispersion liquid are disposed between the transparent front plate and the back plate may be used.

[Procedure amendment 6]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

Claims (3)

[Claims] An S pole side surface portion having an S pole and an N pole;
The inversion display in which a dispersion liquid in which a reversal display magnetic material colored in a color different from the pole side surface portion is dispersed in a liquid having a yield value is accommodated between a transparent front plate and a back plate separated by a predetermined distance. Reversible magnetic display panel for performing display by arranging the magnetic poles of the magnetic material in a fixed direction, and a transparent table in which the dispersed liquid in which the magnetic material for electrophoretic display is dispersed in a colored liquid having a yield value is separated by a predetermined distance. In a display tool of a magnetophoretic magnetic display panel that performs display by causing the magnetic substance for electrophoretic display accommodated between a face plate and a back plate to migrate to the front plate side, the display tool is a front part of a display tool body. A magnetic member formed of a magnetic material, and a tip of a magnet provided such that the tip of the magnetic member is adjacent to the magnetic member and the tip of the magnetic member is magnetized as a magnetic pole for displaying a magnetic material. Keep away from An elastic body that resiliently is provided, the elastic force of the elastic body is set to be greater than the magnetic force of the magnet with respect to the magnetic member, and is smaller than the pressing force of the distal end where the plastic deformation of the surface plate occurs. A magnetic display panel wherein the magnetic force of the magnetic pole at the distal end of the magnetic member is increased by pressing the distal end of the magnetic member against the elastic force of the elastic body. Display tools. 2. The display device according to claim 1, wherein the elastic body is formed integrally with a rear portion of the magnetic member. 3. The display device for a magnetic display panel according to claim 1, wherein the elastic body is formed integrally with a front portion of the display device main body.