CN209265122U - It is a kind of can selective erase liquid crystal blackboard - Google Patents
It is a kind of can selective erase liquid crystal blackboard Download PDFInfo
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- CN209265122U CN209265122U CN201822080183.9U CN201822080183U CN209265122U CN 209265122 U CN209265122 U CN 209265122U CN 201822080183 U CN201822080183 U CN 201822080183U CN 209265122 U CN209265122 U CN 209265122U
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Abstract
The utility model discloses it is a kind of can selective erase liquid crystal blackboard, including the first base and the second base being correspondingly arranged, it further include the first conductive layer, second conductive layer, layer of liquid crystal molecule, power supply and blackboard eraser, first conductive layer is set on the blackboard eraser, second conductive layer is set to second base close to the side of first base, the layer of liquid crystal molecule is set between first base and second conductive layer, the power supply is electrically connected with first conductive layer and the second conductive layer respectively, and first there are voltage differences between conductive layer and the second conductive layer.First conductive layer and the second conductive layer are respectively arranged on the two sides of layer of liquid crystal molecule, utilize the writing on the voltage difference erasing liquid crystal blackboard of the two, first conductive layer, which is set on blackboard eraser, can be neatly realized selective erase, facilitate user to wipe writing in the case that deformation occurs in the first base, is beneficial to extend the service life of liquid crystal blackboard.
Description
Technical field
The utility model relates to liquid crystal handwriting pad technical field, more particularly to it is a kind of can selective erase liquid crystal blackboard.
Background technique
Existing liquid crystal handwriting pad can only realize disposable whole erasing out handwriting mostly, and can not achieve selective erase, such as
Shown in Fig. 1, the power supply 6 of the liquid crystal handwriting pad of some achievable selective erases continues defeated to the first conductive layer 3 and the second conductive layer 4
Enter to be higher than the voltage of normality threshold, then make layer of liquid crystal molecule 5 that elastic force deformation occur by firmly squeezing, to change local liquid
Brilliant threshold voltage, achievees the effect that selective erase.Even if but layer of liquid crystal molecule 5 occurs elastic force deformation and can not wipe completely
Whole writings, and violence will cause the first base 1 damage on surface, and repeated deformation shortens the service life of layer of liquid crystal molecule 5.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of convenient erasing, with long service life can locally wipe
The liquid crystal blackboard removed.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: it is a kind of can selective erase liquid crystal
Blackboard, including the first base and the second base being correspondingly arranged, further include the first conductive layer, the second conductive layer, layer of liquid crystal molecule,
Power supply and blackboard eraser, first conductive layer are set on the blackboard eraser, and second conductive layer is set to second base and leans on
The side of nearly first base, the layer of liquid crystal molecule is set between first base and second conductive layer, described
Power supply is electrically connected with first conductive layer and the second conductive layer respectively, and there is electricity between the first conductive layer and the second conductive layer
Pressure difference.
It further, further include black light-absorption layer, the black light-absorption layer is set to second base far from described second
The side of conductive layer.
Further, the material of first base is PET, PC, TAC or PI, the material of second base be PET,
PC, TAC or PI.
Further, the substrate of first conductive layer be nano-silver conductive film, conductive metal film or ITO film,
The substrate of second conductive layer is nano-silver conductive film, conductive metal film or ito thin film.
Further, the power supply is DC power supply.
Further, the power supply is AC power source.
The utility model has the beneficial effects that: the first conductive layer and the second conductive layer are respectively arranged on the two of layer of liquid crystal molecule
Side, using the writing on the voltage difference erasing liquid crystal blackboard of the two, the first conductive layer, which is set on blackboard eraser, can be neatly realized office
Portion's erasing, facilitates user to wipe writing in the first base in the case that deformation occurs, is beneficial to extend liquid crystal blackboard
Service life.
Detailed description of the invention
Fig. 1 is existing liquid crystal blackboard structural schematic diagram；
Fig. 2 be the utility model embodiment one can selective erase liquid crystal blackboard structural schematic diagram.
Label declaration:
1, the first base；
2, the second base；
3, the first conductive layer；
4, the second conductive layer；
5, layer of liquid crystal molecule；
6, power supply；
7, blackboard eraser；
8, black light-absorption layer.
Specific embodiment
For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is: using can the first conductive layer and liquid crystal on the blackboard eraser of flexible operating
The voltage difference between the second conductive layer on blackboard realizes the writing on freely selective erase liquid crystal blackboard.
Referring to figure 2., it is a kind of can selective erase liquid crystal blackboard, including the first base 1 being correspondingly arranged and the second base
2, it further include the first conductive layer 3, the second conductive layer 4, layer of liquid crystal molecule 5, power supply 6 and blackboard eraser 7, first conductive layer 3 is set
In on the blackboard eraser 7, second conductive layer 4 is set to second base 2 close to the side of first base 1, described
Layer of liquid crystal molecule 5 is set between first base 1 and second conductive layer 4, and the power supply 6 is conductive with described first respectively
Layer 3 and the second conductive layer 4 are electrically connected, and there are voltage differences between the first conductive layer 3 and the second conductive layer 4.
The working principle of the utility model is summarized as follows: the first conductive layer of layer of liquid crystal molecule two sides and the second conductive layer shape
At voltage difference, which, which is converted into light by the plane state that can reflect specific wavelength for the liquid crystal molecule of layer of liquid crystal molecule, to lead to
The Focal conic state crossed, thus wipes the writing on liquid crystal blackboard, and is equipped with the blackboard eraser of the first conductive layer when operating with more
It is easy.
As can be seen from the above description, the utility model has the beneficial effects that: the first conductive layer is set respectively with the second conductive layer
In the two sides of layer of liquid crystal molecule, using the writing on the voltage difference erasing liquid crystal blackboard of the two, the first conductive layer is set to blackboard eraser
On selective erase can be neatly realized, facilitate user to wipe writing in the case that deformation occurs in the first base, have
Beneficial to extending the service life of liquid crystal blackboard.
It further, further include black light-absorption layer 8, the black light-absorption layer 8 is set to second base far from described the
The side of two conductive layers 4.
Seen from the above description, black light-absorption layer absorbs light to make the surface of liquid crystal blackboard that black be presented, and is beneficial to
Increase the contrast with writing.
Further, the material of first base 1 is PET, PC, TAC or PI, and the material of second base 2 is
PET, PC, TAC or PI.
Further, the substrate of first conductive layer 3 is that nano-silver conductive film, conductive metal film or ITO are thin
Film, the substrate of second conductive layer 4 are nano-silver conductive film, conductive metal film or ITO film.
Further, the power supply 6 is DC power supply.
Seen from the above description, the first conductive layer is powered with the second conductive layer by DC power supply, and use is safer.
Further, the power supply 6 is AC power source.
Embodiment one
Referring to figure 2., the embodiments of the present invention one are as follows: it is a kind of can selective erase liquid crystal blackboard, including correspondence sets
The first base 1 and the second base 2 set further include the first conductive layer 3, the second conductive layer 4, layer of liquid crystal molecule 5, power supply 6 and black
Blackboard eraser 7, first conductive layer 3 are set on the blackboard eraser 7, and second conductive layer 4 is set to second base 2 close to institute
The side of the first base 1 is stated, the layer of liquid crystal molecule 5 is set between first base 1 and second conductive layer 4, described
Power supply 6 is electrically connected with first conductive layer 3 and the second conductive layer 4 respectively, and between the first conductive layer 3 and the second conductive layer 4
There are voltage differences, so it is easy to understand that the first base is directly in contact with layer of liquid crystal molecule, is different from available liquid crystal blackboard
Conductive layer is added between one base and layer of liquid crystal molecule, the liquid crystal blackboard of the present embodiment has transmitance height, contrast high and clear
The high feature of clear degree.
In the present embodiment, the layer of liquid crystal molecule 5 is sufficiently stirred mixed by cholesteric liquid crystal, high molecular polymer and space powder
It closes, the ratio of the cholesteric liquid crystal, high molecular polymer and space powder is 75:24:1, and wherein space powder plays support and makees
With high molecular polymer plays the role of bonding.
It further include black light-absorption layer 8, the black light-absorption layer 8 is set to second base far from second conductive layer 4
Side, so it is easy to understand that when not occurring writing on liquid crystal blackboard, the molecule in layer of liquid crystal molecule 5 is in Focal conic state, therefore
Light can directly pass through liquid crystal molecule, and the black light-absorption layer 8 for being set to side of second base far from second conductive layer 4 is inhaled
The light across layer of liquid crystal molecule 5 is received, makes the surface of liquid crystal blackboard that black be presented, the comparison of liquid crystal blackboard and writing can be enhanced
Degree, the more obvious protrusion of writing.
The material of first base 1 is PET, PC, TAC or PI, and the material of second base 2 is PET, PC, TAC
Or PI, the Thickness range of first base 1 are 5-50 microns, in the present embodiment, the material of first base 1 is
PET, it is preferred that the first base 1 with a thickness of 5 microns, the first frivolous base 1 reduces the first conductive layer 3 and second conductive
Spacing between layer 4, convenient for the voltage difference between the second conductive layer 4 on the first conductive layer 3 on blackboard eraser 7 and liquid crystal blackboard
Change the molecular state in layer of liquid crystal molecule 5.
Optionally, the substrate of first conductive layer 3 be nano-silver conductive film, conductive metal film or ITO film,
The substrate of second conductive layer 4 is nano-silver conductive film, conductive metal film or ito thin film, it is preferred that described first leads
The substrate of electric layer 3 and second conductive layer 4 is ito thin film.
Optionally, the power supply 6 is AC power source.
Preferably, the power supply 6 be DC power supply, in the present embodiment, the second conductive layer 4 using 30V direct current
Voltage, it is harmless because the voltage for being loaded into the second conductive layer 4 is consistently less than 36V, and load the first conductive layer 3
Voltage be 10V, the voltage of 10V can form the voltage value in effective 20V voltage difference and blackboard eraser more with the second conductive layer 4
It is small, improve the safety using the blackboard eraser 7.
In conclusion it is provided by the utility model can selective erase liquid crystal blackboard, the first conductive layer and the second conductive layer
The two sides of layer of liquid crystal molecule are respectively arranged on, using the writing on the voltage difference erasing liquid crystal blackboard of the two, the first conductive layer is set to
Selective erase can be neatly realized on blackboard eraser, facilitate user to wipe writing in the case that deformation occurs in the first base
It removes, is beneficial to extend the service life of liquid crystal blackboard.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is also included in the patent protection scope of the utility model.
Claims (6)
1. one kind can selective erase liquid crystal blackboard, including the first base and the second base being correspondingly arranged, it is characterised in that: also
Including the first conductive layer, the second conductive layer, layer of liquid crystal molecule, power supply and blackboard eraser, first conductive layer is set to the blackboard
It smears, second conductive layer is set to second base close to the side of first base, and the layer of liquid crystal molecule is set to
Between first base and second conductive layer, the power supply is electrically connected with first conductive layer and the second conductive layer respectively
It connects, and there are voltage differences between the first conductive layer and the second conductive layer.
2. it is according to claim 1 can selective erase liquid crystal blackboard, it is characterised in that: further include black light-absorption layer, institute
Black light-absorption layer is stated set on side of second base far from second conductive layer.
3. it is according to claim 1 can selective erase liquid crystal blackboard, it is characterised in that: the material of first base is
PET, PC, TAC or PI, the material of second base are PET, PC, TAC or PI.
4. it is according to claim 1 can selective erase liquid crystal blackboard, it is characterised in that: the substrate of first conductive layer
For nano-silver conductive film, conductive metal film or ito thin film, the substrate of second conductive layer be nano-silver conductive film,
Conductive metal film or ito thin film.
5. it is according to claim 1 can selective erase liquid crystal blackboard, it is characterised in that: the power supply be DC power supply.
6. it is according to claim 1 can selective erase liquid crystal blackboard, it is characterised in that: the power supply be AC power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080183.9U CN209265122U (en) | 2018-12-11 | 2018-12-11 | It is a kind of can selective erase liquid crystal blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080183.9U CN209265122U (en) | 2018-12-11 | 2018-12-11 | It is a kind of can selective erase liquid crystal blackboard |
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| CN209265122U true CN209265122U (en) | 2019-08-16 |
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| CN201822080183.9U Active CN209265122U (en) | 2018-12-11 | 2018-12-11 | It is a kind of can selective erase liquid crystal blackboard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684618A (en) * | 2020-11-30 | 2021-04-20 | 山东蓝贝思特教装集团股份有限公司 | Liquid crystal writing device and method for realizing local erasing by utilizing illumination |
-
2018
- 2018-12-11 CN CN201822080183.9U patent/CN209265122U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684618A (en) * | 2020-11-30 | 2021-04-20 | 山东蓝贝思特教装集团股份有限公司 | Liquid crystal writing device and method for realizing local erasing by utilizing illumination |
| CN112684618B (en) * | 2020-11-30 | 2021-07-30 | 山东蓝贝思特教装集团股份有限公司 | Liquid crystal writing device and method for realizing local erasing by utilizing illumination |
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