CN2053149U - Magnetic display board - Google Patents
Magnetic display board Download PDFInfo
- Publication number
- CN2053149U CN2053149U CN 89207405 CN89207405U CN2053149U CN 2053149 U CN2053149 U CN 2053149U CN 89207405 CN89207405 CN 89207405 CN 89207405 U CN89207405 U CN 89207405U CN 2053149 U CN2053149 U CN 2053149U
- Authority
- CN
- China
- Prior art keywords
- liquid
- magnetic
- panel
- display
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000006249 magnetic particle Substances 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000005376 alkyl siloxane group Chemical group 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The utility model discloses a magnetic display board used for writing display or electromagnetic display and is characterized in that at least two kinds of liquid with nonvanishing interfacial tension and magnetic particles with two poles in different colors are sealed between a bottom board and a transparent panel, a kind of transparent liquid in the liquid can completely displace the rest liquid in the inner surface of the panel and the surface of the magnetic particles, and flat magnetic particles with two poles which have short direction can change position and direction through a magnetic field with certain intensity. The utility model is free from interference of the environmental magnetic field. When being used as the writing board, the magnetic display board has larger contrast grade, can easily modify content in small range, and can realize color display.
Description
The utility model relates to a kind of improved magnetic display device, particularly a kind of magnetic display board that can be used to write demonstration or electromagnetism demonstration.
Existing a kind of small-sized magnetic writing board, be to utilize the black magnetic particle that is suspended in the white liquid, sink-float under magneticaction shows the record content, because the white liquid that plays the covering effect is always arranged between magnetic-particle and observer, therefore, the contrast of this magnetic writing board is less, and can't be among a small circle the amendment record content.China's utility model 86205825 disclosed a kind of magnetic writing boards also exist the problem that can not revise among a small circle, and this is extremely inconvenient for teaching, particularly use and show wrong teaching methodology, and are more inconvenient.
Task of the present utility model provides a kind of improved magnetic display board, and it is not disturbed by environmental magnetic field, when using as clipboard, has bigger contrast, can revise content among a small circle easily, can realize colored the demonstration.
Task of the present utility model is finished as follows:
Between base plate and transparent panel, sealing the flat-shaped magnetic-particle that liquid is different with the two poles of the earth color and two extreme directions are short, liquid is made up of at least two kinds of non-vanishing liquid of interfacial tension, and wherein have a kind of transparency liquid can be on the surface of the inner surface of panel and magnetic-particle remaining liquid of displacement fully.Like this, under the situation that does not change displaying contents, magnetic-particle will be attached under the interfacial tension effect on panel or the base plate; When needing to change displaying contents, can change the position or the direction of part or all magnetic-particle by electromagnet or permanent magnet.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is a part sectioned view of the present utility model.
Fig. 2 is the part sectioned view of another embodiment of the utility model.
As shown in Figure 1, sealing liquid (3), colourless transparent liquid (4) magnetic-particle (5) different between base plate (1) and the water white panel (2) with the two poles of the earth color.The shape of magnetic-particle (5) preferably minor axis at the oblate spheroid of two extreme directions, the inner surface of panel is preferably coarse, the proportion of liquid (3), liquid (4) and magnetic-particle (5) should be close, preferably equate, the polarity of liquid (3) is stronger, the polarity of liquid (4) a little less than, make by hydrophobic material on the surface of panel (2) or its inner surface and magnetic-particle (5), base plate (1) or its inner surface are made by hydrophilic material.When using as clipboard, can show writing as long as on panel (2), write with a bar magnet, during modification with another utmost point of permanent magnet wiping on the position accordingly, write again again.Large tracts of land is changed displaying contents can be as the operation of revising, and also can be provided for removing the electromagnet of writing or permanent magnet movably at displaying plate face.AT STATION, in the communal facilitys such as harbour, airport, when showing purposes such as timetable, as long as the electromagnet of settling some independently to control at displaying plate face just can be realized the electromagnetism demonstration.
Fig. 2 is the magnetic writing board that is applicable to the colour the realized demonstration of teaching.Wherein the surface of base plate (1), panel (2) or their inner surface and magnetic-particle (5) is hydrophobic material or is hydrophilic material and makes, and corresponding liquid (3) is the stronger or more weak liquid of polarity, and opaque; Liquid (4) is water white transparency, the liquid that polarity is more weak or stronger.The inner surface of base plate and panel is preferably coarse, and electromagnet or permanent magnet are movably settled in the back side of display board.If liquid (3) is black, the N utmost point of magnetic-particle is white, and the S utmost point is red, and what write out with the S utmost point of bar magnet so is wrongly written or mispronounced character.What write with the N utmost point is exactly The Scarlet Letter, and the available magnet of modification is among a small circle wiped into white plate face, writes The Scarlet Letter again.The effect of Xiu Gaiing has played the effect of emphasizing for teaching like this.Start the electromagnet or the permanent magnet of displaying plate face, just can eliminate writing, form black plate face.
In the foregoing description, hydrophobic material can adopt polypropylene, poly-alkylsiloxane, and hydrophilic material can adopt glass, silica gel.
Claims (2)
1, a kind of by being sealed in the magnetic display device that base plate is different with the two poles of the earth color with the liquid between transparent panel and flat-shaped magnetic-particle that two extreme directions are short is formed, it is characterized in that, liquid is made up of at least two kinds of non-vanishing liquid of interfacial tension, and wherein have a kind of transparency liquid can be on the surface of the inner surface of panel and magnetic-particle remaining liquid of displacement fully.
2, according to the magnetic display device of claim 1, it is characterized in that: the inner surface of panel is coarse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207405 CN2053149U (en) | 1989-05-20 | 1989-05-20 | Magnetic display board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207405 CN2053149U (en) | 1989-05-20 | 1989-05-20 | Magnetic display board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2053149U true CN2053149U (en) | 1990-02-21 |
Family
ID=4864264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89207405 Withdrawn CN2053149U (en) | 1989-05-20 | 1989-05-20 | Magnetic display board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2053149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512166A (en) * | 2013-09-30 | 2015-04-15 | 王震亚 | Magnetic writing board |
| CN106796415A (en) * | 2014-08-06 | 2017-05-31 | 普雷斯弗雷克斯股份公司 | The timing device of the instruction be given including the magnetic-particle by being suspended in the chamber of liquid filling body |
-
1989
- 1989-05-20 CN CN 89207405 patent/CN2053149U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512166A (en) * | 2013-09-30 | 2015-04-15 | 王震亚 | Magnetic writing board |
| CN106796415A (en) * | 2014-08-06 | 2017-05-31 | 普雷斯弗雷克斯股份公司 | The timing device of the instruction be given including the magnetic-particle by being suspended in the chamber of liquid filling body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69315969D1 (en) | Presentation of information in a display system with transparent windows | |
| CA2056030A1 (en) | Tcas view display format with horizontal trend | |
| CA2285833A1 (en) | Magnetophoresis type display device and process of production of same | |
| CA2317911A1 (en) | Magnetophoretic display panel | |
| CN2053149U (en) | Magnetic display board | |
| US5788506A (en) | Apparatus and method for displaying the flow of a solution in response to the movement of magnetic particles | |
| CN86210463U (en) | Arithmetic teaching instrument for children | |
| IE883327L (en) | A method of programming a computer | |
| CN2171146Y (en) | Magnetic force moving digital display device | |
| CN217718955U (en) | Magnetic fluid display container | |
| CN2373849Y (en) | Magnetic intelligent picture-splicing board | |
| CN213211361U (en) | MR holographic electronic reading device | |
| JPH0233263Y2 (en) | ||
| ATE301851T1 (en) | PORTABLE CARD-SHAPED DATA CARRIER HAVING AN OPTICAL DISPLAY DEVICE | |
| CN2145118Y (en) | Magnetic writing apparatus | |
| JPH0343877Y2 (en) | ||
| CN2323427Y (en) | Projection abacus | |
| CN2129708Y (en) | Electronic display screen | |
| CN2042797U (en) | Magnetic blackboard without dust | |
| CN1234286A (en) | Magnetic toy | |
| CN1097692A (en) | Multi-colour blackboard | |
| ATE186147T1 (en) | VARIABLE TRAFFIC SIGNS FOR ROAD TRAFFIC | |
| CN2159882Y (en) | Colour magic picture board | |
| CN2146734Y (en) | New-type abacus with colour beads as boundary | |
| CN2406269Y (en) | Light-blocking teaching projection film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |