JP2003291589A - Magnetic panel with display body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a magnetic panel with a display body which enables recognition of the shape of a written line even when the written line formed of a magnetic substance written by a magnetic pen is laid on a display line constituting the display body provided on a surface board. <P>SOLUTION: The display line constituting the display body is formed of a collected body of dots and/or lines which are arranged with gaps provided between them and enabling visual recognition of the magnetic substance in a liquid holding cell. In another way, the display line is formed of a colored transparent substance enabling visual recognition of the magnetic substance laid on the display line. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention stores a dispersion liquid in which a magnetic material is dispersed in a liquid having a yield value containing a dispersion medium and a thickener as main components in a plurality of liquid storage chambers. The present invention relates to a magnetic panel with a display body in which a transparent surface plate provided with a display body is arranged on the display surface side of the liquid storage chamber.

[0002]

2. Description of the Related Art Conventionally, a dispersion liquid prepared by dispersing a black magnetic material in a white liquid having a yield value mainly containing a dispersion medium and a thickener is used to form a plurality of honeycomb cells on a back plate. It is housed in a liquid storage chamber formed by fixing the partition wall that constitutes
A transparent surface plate is fixed to the display surface side of the liquid storage chamber to enclose the dispersion liquid, and a magnetic substance is migrated to the surface side by using a magnetic pen, whereby a black writing line with a white liquid as a background is drawn. A so-called electrophoretic magnetic panel that constitutes the above is known. Alternatively, a transparent material having an S pole and an N pole, for example, a magnetic material in which the S pole side surface portion is colored green and the N pole side surface portion is colored white has a yield value mainly composed of a dispersion medium and a thickener. The dispersed liquid dispersed in the liquid is housed in a liquid storage chamber formed by fixing partition walls forming a plurality of honeycomb cells to the back plate, and a transparent front plate is fixed to the display surface side of the liquid storage chamber. Then, the dispersion liquid is sealed in, and the magnetic substance is inverted by magnetic force by bringing the N pole of the magnetic pen close in a state where the transparent surface plate side is white (the surface of the N pole side). There is also known a so-called magnetic reversal display panel in which a green (S pole side surface portion) writing line is formed on the background of (part).

Since these magnetic panels may be used in a usage such as a blackboard or a whiteboard, recently, it is desired that display bodies such as ruled lines, characters and patterns are provided on the panel surface in advance. . Conventional blackboards and whiteboards are generally provided with a white display on the blackboard and a black display on the whiteboard by silk printing using ink. The ruled lines and the display lines that form the display body such as characters and patterns are provided so as to conceal the writing surface, and the width thereof is several millimeters to several tens of millimeters in order to make it easy to see on a blackboard having a large writing board surface. Most of them are thicker than millimeters.

[0004]

By the way, since the above-mentioned magnetic panel has a structure in which writing lines made of a magnetic material are formed on the back side of the transparent surface plate,
When a display similar to a blackboard or whiteboard is provided, when the writing line overlaps the display lines that make up the display, the writing line is hidden behind the display line, and the written characters are interrupted. There was a problem that the character shape could not be recognized.

In view of these facts, the present invention recognizes the shape of the writing line even when the writing line made of a magnetic material written with a magnetic pen overlaps the display line forming the display body provided on the surface plate. The purpose is to propose a magnetic panel with a display that can be used.

[0006]

Next, the present invention devised to solve the above problems will be described. "1. A dispersion liquid obtained by dispersing a magnetic material in a liquid having a yield value containing a dispersion medium and a thickener as main components is housed in a plurality of liquid storage chambers, and the display surface side of the liquid storage chambers. In a magnetic panel with a display body in which a transparent surface plate provided with a display body is arranged, display lines forming the display body are arranged with a gap in which the magnetic body in the liquid storage chamber is visible. as well as/
Alternatively, it is characterized by being formed of an aggregate of lines. 2. A dispersion liquid obtained by dispersing a magnetic material in a liquid having a yield value containing a dispersion medium and a thickener as main components is housed in a plurality of liquid storage chambers, and a display member is provided on the display surface side of the liquid storage chambers. In a magnetic panel with a display body provided with a transparent surface plate provided with, the display line constituting the display body is formed of a colored transparent body in which the magnetic body overlapping the display line is visible. Is characterized by. "

In the invention according to claim 1, the display line forming the display body is formed of an aggregate of points and / or lines arranged with a gap in which the magnetic material in the liquid storage chamber is visible. , When the writing line overlaps with the display line,
This is because the magnetic substance can be seen from the points where the display line is formed and the gaps between the lines, and the shape of the writing line can be recognized.

In the present invention, the dots or aggregates of lines forming the display line are formed by arranging dots in a polka dot pattern or arranging fine lines in a mesh pattern or a horizontal stripe pattern. However, the size and thickness of the dots and lines may be appropriately set depending on the size of the target magnetic panel or display, the writing line width of the magnetic pen, and the like. The size of the gap between the dots and lines is not particularly limited as long as the magnetic substance forming the writing line can be visually recognized from the gap.

In the case where the display body is a straight line like a ruled line, even if the points forming the display line or the gap between the lines is widened, the line moves regularly in a fixed direction. ,
The viewer perceives the distance between dots or the distance between lines,
It is possible to recognize the existence of ruled lines. In addition, when the gap between dots or lines is widened, the writing lines are less likely to overlap with the dots or lines and easily pass through for easy viewing. The morphology can be recognized. Therefore, if the display is a ruled line,
It is possible to widen the points and the gaps between the lines that form the display lines. If the gaps are widened, the amount of ink and paint used for the display lines can be reduced, leading to cost reductions and relatively high-grade products. It is preferable because a synergistic effect that different inks and paints can be used is produced. In addition, when the display body is non-linear such as characters and patterns, if the points and lines forming the display line are made fine and the gap is narrowed, there are many curves and bends. It is preferable that the characters in the form are easy to see. In addition, when the gap between the points and lines forming the display line is narrowed, the writing line fills the gap between the points and lines, so there is a difference in appearance between the display line and the part where the writing line does not overlap. , It is possible to recognize the shapes such as handwritten characters. The display body may be surrounded by a thin contour line in order to clarify the outer edge portion or the inner edge portion of the display body.

Further, in the magnetic panel with a display body of the present invention, even when the display line forming the display body is thick or has a conspicuous color, the points or lines forming the display line are made smaller or thinner. Alternatively, by widening the intervals between the dots and the lines, it is possible to set the presence of the display body so as not to be overly conspicuous with respect to the writing line.

In the invention according to claim 2, the display line forming the display body is formed of a colored transparent body in which the magnetic material overlapping the display line is visible, and the writing line overlaps with the display line. This is because the magnetic substance can be seen through the display line and the shape of the writing line can be recognized even at this time. The colored transparent body in the present invention means that the display body is printed or coated with a transparent ink or paint having a high light transmittance, or a resin film having colored transparency. There is one that is cut out according to the shape of the display body and attached to the surface plate. It should be noted that the transparency of the transparent body should be understood as the presence of the display body with respect to the background color of the magnetic panel, and for the writing line, when the writing line overlaps the display line, Any magnetic particles can be seen through.

As the ink or paint having high transparency with high light transmittance, pigment-based inks include a medium in which a pigment is added at a low concentration, or a medium in which a pigment having a small particle size is added. Alternatively, the pigment itself may include a pigment having transparency. Further, dye-based ink can also be used. As the colored transparent resin film, a known transparent resin material such as a polyethylene resin, a polypropylene resin, a polyvinyl chloride resin, or a polyethylene terephthalate resin is colored, or the resin material itself has a color. You can use one.
It is also possible to use a transparent resin film whose surface is subjected to mechanical processing such as embossing to adjust the transparency. Alternatively, the display may be obtained by directly subjecting the transparent surface plate of the magnetic panel to the above processing.

Although it is common to claim 1 and claim 2, the display body is a character such as hiragana, alphabet or numeral, and the display body can be traced to the infant with a magnetic pen, so that it can be used as an educational toy. Is. Alternatively, the display body can be a picture of a car, an animal, a doll, etc., and can be used for coloring games. At that time, a transparent surface plate provided with a display body is detachably arranged on the display surface side of the liquid storage chamber, or a first transparent surface plate without a display body is displayed on the liquid storage chamber. When the second transparent surface plate provided with the display body is arranged so as to be superposed on the surface side, the plurality of different surface plates provided with the display body of the desired characters or pictures are provided. ,
It is preferable because it can be used while being replaced if necessary. Further, when the display line is provided on the back surface of the transparent front plate, the display line can be protected from external contact, so that the display line is not rubbed off with a magnetic pen or the like and is not peeled off. It is preferable that the magnetic pen does not stick out and the magnetic pen does not get caught during writing and is smooth.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings in order to facilitate understanding. In the present embodiment, as the magnetic panel with a display, the above-mentioned magnetic reversal display panel provided with a display will be described, but the present invention can also be applied to an electrophoretic magnetic panel.

FIG. 1 is a perspective view of a corner portion of a magnetic panel with a display unit according to the first embodiment, and FIG. 2 is a schematic sectional view of FIG. The internal structure of the magnetic material reversal display panel will be briefly described with reference to FIG. 2. In the magnetic panel 1 with a display body, a liquid container formed by fixing partition walls 4 constituting a plurality of honeycomb cells 3 to a back plate 2 is formed. On the display surface side of the chamber 5, a transparent surface plate 6 is fixedly attached to the partition wall 4 to be integrated. In the liquid storage chamber 5,
A dispersion liquid 9 having a yield value in which a magnetic material 8 having an S pole and an N pole is dispersed in a liquid 7 composed of a dispersion medium and a thickener is contained. The magnetic body 8 has the surface portion on the S pole side colored green,
The surface portion on the N pole side is colored white. To write a writing line on the display-attached magnetic panel 1, for example, the transparent surface plate 6 is white (N-pole side surface portion), and is provided as a magnetic reversal magnetic pole in the front part of the pen-shaped magnetic pen 10. When the N pole magnetic pole part 10a is moved in the direction of the arrow T while being in contact with the transparent surface plate 6, the magnetic force (the one-dot chain line arrow in the figure)
Thus, the green color (surface portion on the S pole side) of the magnetic body 8 is linearly arranged on the transparent surface plate 6 side. In this case, the background is white (N
A green (S pole side surface portion) writing line is written on the transparent surface plate 6 side of the pole side surface portion). Further, the magnetic eraser 11 is used to return the transparent surface plate 6 in which green (the S pole side surface portion) is written on a white background to white. The magnetic eraser 11 is a flat magnet and has an S pole 11a and an N pole.
It has a magnetic material reversal magnetic pole of the pole 11b. When the S pole 11a side of the magnetic eraser 11 is brought into contact with the green (S pole side surface portion) writing line portion of the transparent surface plate 6 of the magnetic reversal display panel 1, the magnetic substance 8 is white (N pole side surface). (Part) is arranged on the side of the transparent front plate 6 and becomes white.

In the magnetic reversal display panel 1 of the present embodiment, the display lines 15a and 15b forming the display 14a, which are the ruled lines 12a and the characters 13a, are provided on the back surface of the transparent front plate 6. The display body will be described in detail with reference to the drawings. FIG. 3 is a schematic plan view of the display body according to the embodiment. Display 14a
Are the display lines 15a, which form the ruled lines 12a and the characters 13a,
15b is formed by arranging dots 16a and 16b in a polka dot pattern on the surface plate 6 by screen printing using a black acrylic paint. Gaps 17a and 17b are provided between adjacent points. In the present embodiment,
The points 16a forming the display line 15a are circular with a diameter of 1.2 mm, and the distance between the points 16a is 2.5 mm. The minute points 16b forming the display line 15b are circular with a diameter of 0.7 mm, and the distance between the points 16b is 1.5 mm.

The written characters 18a and 18b for "rest" and "business trip" shown in FIG. 1 are written lines 18 written by the magnetic pen 10. The written letter 18b that says "Business trip"
Although the lower part thereof overlaps the ruled line 12a of the display body 14a, the shape of the lower part of the handwritten character 18b can be recognized by observing the magnetic body through a polka dot pattern gap (not shown).

FIG. 4 is a schematic plan view showing a modification of the display body of the same embodiment. The display body 14b shown in FIG. 4 has display lines 15c and 15d that form the ruled line 12b and the character 13b.
Is formed by arranging fine lines 19a and 19b in a mesh pattern on the surface plate 6 by screen printing using a black acrylic paint. A gap 17c is formed between the adjacent thin wires,
17d is provided. In this modification, the display line 15c
The line width of the thin wires 19a and 19b forming the is 0.3 mm, and the interval between the parallel thin wires 19a and 19b is 3 m.
It is as m. In the present embodiment, in order to clarify the edge of the display body, the contour line 19 having a line width of 0.3 mm is used.
The ruled line 12b and the character 13b are surrounded by c and 19d.

FIG. 5 is a perspective view of a corner portion of the magnetic panel with a display according to the second embodiment. FIG. 6 is a schematic plan view of the display body of the same embodiment. In the magnetic reversal display panel 1a of the present embodiment, a display 14c having ruled lines 12c and characters 13c is provided on the back surface of the transparent front plate 6. The display body 14c is formed of a transparent polyethylene terephthalate resin colored red and having a thickness of 125 μm. The other points are similar to those of the above-described first embodiment, and thus the description thereof will be omitted.

The handwritten character 18b "Business trip" shown in FIG.
Has its lower portion overlapping with the ruled line 12c of the display body 14c, but since the display line 15e forming the display body 14c is formed of a transparent resin, the magnetic body forming the lower portion of the written character 18b is The shape of the handwritten character 18b can be recognized by seeing the watermark from the display line 15e.

Although the present embodiment has been described in detail above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims. It can be carried out. For example, in a liquid storage chamber that stores a dispersion liquid (a liquid in which a magnetic substance is dispersed in a liquid having a yield value), partition walls that form honeycomb cells are first fixed to a transparent front plate, and the back plate is then used as a partition wall. It may be adhered to and formed. Further, in addition to a magnetic panel having a structure in which a dispersion liquid (a liquid in which a magnetic material is dispersed in a liquid having a yield value) is contained in a liquid storage chamber formed by partitioning a transparent front plate and a back plate between partitions, for example, It is possible to employ a microcapsule containing a dispersed liquid as a liquid storage chamber and a panel structure in which a transparent surface plate is arranged on the display surface side.

[0022]

Since the magnetic panel with a display according to the present invention has the above-described structure, the writing line of the magnetic material written with the magnetic pen overlaps the display line of the display provided on the surface plate. Even now, the shape of the writing line can be recognized.

[Brief description of drawings]

FIG. 1 is a perspective view of a corner portion of a magnetic panel with a display according to a first embodiment.

FIG. 2 is a partial cross-sectional view of FIG.

FIG. 3 is a schematic plan view of a display body according to the same embodiment.

FIG. 4 is a schematic plan view showing a modified example of the display body according to the same embodiment.

FIG. 5 is a perspective view of a corner portion of the magnetic panel with a display unit according to the second embodiment.

FIG. 6 is a schematic plan view of a display body according to the same embodiment.

[Explanation of symbols]

1, 1a ... Magnetic panel with display element, 2 ... Back plate, 3 ... Honeycomb cells, 4 ... Partition walls, 5 ... Liquid storage chamber, 6 ... Transparent surface plate, 7 ... Liquid, 8 ... Magnetic material, 9 ... Dispersed liquid 10 ... Magnetic pen, 11 ... Magnetic eraser, 12a, 12b ... Ruled line,
13a, 13b ... Characters, 14a, 14b ... Display body, 1
5, 15a, 15b, 15c, 15d, 15e ... Display line, 16a, 16b ... Point, 17a, 17b, 17c, 1
7d ... Gap, 18 ... Writing line, 18a, 18b ... Writing character, 19a, 19b ... Thin line, 19c, 19d ... Contour line.

Claims (2)

[Claims] 1. A dispersion liquid obtained by dispersing a magnetic material in a liquid having a yield value mainly containing a dispersion medium and a thickener is contained in a plurality of liquid storage chambers, and the display of the liquid storage chambers is performed. In a magnetic panel with a display body provided with a transparent surface plate provided with a display body on the surface side, display lines forming the display body are arranged with a gap in which the magnetic body in the liquid storage chamber is visible. A magnetic panel with a display body, characterized in that it is formed of an aggregate of points and / or lines. 2. A dispersion liquid obtained by dispersing a magnetic material in a liquid having a yield value, which comprises a dispersion medium and a thickener as main components, is accommodated in a plurality of liquid storage chambers, and the display of the liquid storage chambers is performed. In a magnetic panel with a display body, in which a transparent surface plate provided with a display body on the surface side is arranged, a display line that constitutes the display body is colored transparent so that the magnetic body overlapping the display line can be visually recognized. A magnetic panel with a display body, which is formed of a body.