CN2838984Y - Liquid crystal blackboard - Google Patents
Liquid crystal blackboard Download PDFInfo
- Publication number
- CN2838984Y CN2838984Y CN 200520098279 CN200520098279U CN2838984Y CN 2838984 Y CN2838984 Y CN 2838984Y CN 200520098279 CN200520098279 CN 200520098279 CN 200520098279 U CN200520098279 U CN 200520098279U CN 2838984 Y CN2838984 Y CN 2838984Y
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- blackboard
- honeycomb
- small magnet
- small
- 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.)
- Expired - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a liquid crystal blackboard, of which the aim is to provide the liquid crystal blackboard without using a chalk as a writing tool. Thus, the utility model provides the liquid crystal blackboard which is characterized in that the blackboard is mainly composed of a honeycomb frame, small magnets in each honeycomb, liquid crystal layers on the surfaces of the small magnets, conducting wires between the small magnets and glass, wherein a small magnet is arranged in each honeycomb lattice of the honeycomb frame, the homopolarity facing of the small magnets is the same, the outer end of each small magnet is provided with the liquid crystal layer on the surface of each small magnet, conducting wires are arranged between every two adjacent small magnets on the transverse side of the honeycomb frame and the conducting wires are pressed on the glass of the honeycomb frame. Chalk dust can not be generated on the liquid crystal blackboard, and the liquid crystal blackboard is environment friendly and more favorable for human health as compared with an ordinary blackboard.
Description
Technical field
The present invention relates to a kind of blackboard of the usefulness of imparting knowledge to students.
Background technology
Existing blackboard is flat board, or with wooden that do or make of cement, its general character is all to need write in the above with chalk, and to absorb chalk dust unhealthful so that the people who writes is bound, simultaneously also contaminated environment of chalk dust.
Summary of the invention
It is a kind of without the liquid crystal blackboard of chalk as writing implement that purpose of the present invention provides.For this reason, the invention provides a kind of liquid crystal blackboard, it is characterized in that: blackboard mainly is made of lead, glass between small magnet in honeycomb frame, the honeycomb, small magnet surface liquid crystal layer, small magnet; Wherein, all be equipped with small magnet in each honeycomb lattice of honeycomb frame, the homopolarity of small magnet is towards identical, and there is small magnet surface liquid crystal layer each small magnet outer end, on the horizontal edge of honeycomb frame, be mounted with lead between every adjacent two small magnets, described lead is pressed on glass by honeycomb frame.The sizableness of the honeycomb lattice of the size of small magnet and honeycomb frame, its length can be inserted small magnet in the honeycomb lattice and activity back and forth in grid less than the length of honeycomb lattice like this.Honeycomb frame is fixed on glass.
The present invention only needs the outstanding stylus in a tip can stay the person's handwriting of writing on glass writing, its principle is: under the attraction of stylus, small magnet outwards moves to the liquid crystal layer contact wire on small magnet surface, lead needs energising in advance, there is voltage between two leads, liquid crystal changes color under voltage, just stay the vestige of writing like this on the blackboard.This blackboard can not produce chalk dust, compares normal blackboard environmental protection and more favourable people's health.
Description of drawings
Fig. 1 is a cross section structure schematic diagram of the present invention.
Fig. 2 is the stereogram of honeycomb frame of the present invention.
The specific embodiment
With reference to a kind of liquid crystal blackboard of figure 1 the present invention, mainly constitute by lead 4, glass 5 between small magnet 2 in honeycomb frame 1, the honeycomb, small magnet surface liquid crystal layer 3, small magnet.All be equipped with small magnet 2 in each honeycomb lattice of honeycomb frame 1, the N of small magnet 2 extremely all to the outside, scribble small magnet surface liquid crystal layer 3 in small magnet 2 outer ends, on the horizontal edge 10 of honeycomb frame, be mounted with lead 4 between every adjacent two small magnets, lead 4 is pressed on the glass 5 by honeycomb frame 1.The sizableness of the honeycomb lattice of the size of small magnet 2 and honeycomb frame, its length can be inserted small magnet in the honeycomb lattice and activity back and forth in grid less than the length of honeycomb lattice like this.Honeycomb frame 1 is fixed on the glass 5.Glass 5 is necessary for transparent.Honeycomb frame 1 can be plastics.
Claims (1)
1. liquid crystal blackboard is characterized in that: blackboard mainly by in honeycomb frame, the honeycomb between small magnet, small magnet surface liquid crystal layer, small magnet lead, glass constitute; Wherein, all be equipped with small magnet in each honeycomb lattice of honeycomb frame, the homopolarity of small magnet is towards identical, and there is small magnet surface liquid crystal layer each small magnet outer end, on the horizontal edge of honeycomb frame, be mounted with lead between every adjacent two small magnets, described lead is pressed on glass by honeycomb frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098279 CN2838984Y (en) | 2005-09-30 | 2005-09-30 | Liquid crystal blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520098279 CN2838984Y (en) | 2005-09-30 | 2005-09-30 | Liquid crystal blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2838984Y true CN2838984Y (en) | 2006-11-22 |
Family
ID=37426969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520098279 Expired - Fee Related CN2838984Y (en) | 2005-09-30 | 2005-09-30 | Liquid crystal blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2838984Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200045A (en) * | 2016-08-12 | 2016-12-07 | 北京科技大学 | A kind of high-resolution magnetic liquid crystal display and preparation method thereof |
-
2005
- 2005-09-30 CN CN 200520098279 patent/CN2838984Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200045A (en) * | 2016-08-12 | 2016-12-07 | 北京科技大学 | A kind of high-resolution magnetic liquid crystal display and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |