CN208922028U - Using organic conductive material as the liquid crystal handwriting pad of conductive layer - Google Patents
Using organic conductive material as the liquid crystal handwriting pad of conductive layer Download PDFInfo
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- CN208922028U CN208922028U CN201821153296.0U CN201821153296U CN208922028U CN 208922028 U CN208922028 U CN 208922028U CN 201821153296 U CN201821153296 U CN 201821153296U CN 208922028 U CN208922028 U CN 208922028U
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Abstract
It is a kind of using organic conductive material as the liquid crystal handwriting pad of conductive layer, it successively includes first substrate, first conductive layer, polymeric layer, cholesteric liquid crystal mixed layer, second conductive layer and the second substrate, first conductive layer is attached on a side surface of first substrate by organic conductive material and is formed, cholesteric liquid crystal mixed layer is solidified to form by liquid-crystal composition, liquid-crystal composition includes cholesteric liquid crystal and polymer monomer, polymeric layer polymerize after mutually being separated by the polymer monomer in liquid-crystal composition with cholesteric liquid crystal and is formed, second conductive layer is attached on a side surface of the second substrate by organic conductive material and/or inorganic conductive material and is formed.The utility model using organic conductive material with the compatibility of polymer monomer and induced polymer monomer is mutually separated with cholesteric liquid crystal, to improve phase separation degree and improve display effect, so that the written handwriting brightness of handwriting pad is brighter.In addition, production cost can also be reduced using organic conductive material.
Description
[technical field]
It is the utility model relates to liquid crystal handwriting pad, in particular to a kind of hand-written using organic conductive material as the liquid crystal of conductive layer
Plate.
[background technique]
Handwriting pad is a kind of electronic equipment that text, pattern and figure are shown by pressure sensitive, and user gently one
Picture can be completed to write.Inside the LCD screen of handwriting pad, in the way of molecules align, liquid crystal can be broadly divided into nematic
Type, smectic type, cholesteric three categories；Wherein, its liquid crystal molecule (cholesteric liquid crystal molecule) of cholesteryl liquid crystal is in flat, arrangement
Stratification, molecule is parallel to each other in layer, and molecular long axis is parallel to layer plane, and the molecular long axis direction of different layers varies slightly, along layer
Normal direction will be arranged in helicoidal structure.Due to the special molecular structure of cholesteric liquid crystal and optical anisotropy,
Determine it have the optical activity of crystal, polarization photodichroism and he itself distinctive selective light dissipate the properties such as color.
For cholesteryl liquid crystal handwriting pad, conductive layer and liquid crystal layer have been generally included.Liquid crystal layer is by liquid-crystal composition shape
At, wherein liquid-crystal composition includes cholesteric liquid crystal and polymer monomer.Cholesteric liquid crystal by liquid crystal and chiral agent allotment and
At, by adjusting chiral agent content may make cholesteric liquid crystal reflection specific wavelength light so that corresponding liquid crystal is hand-written
The writing of plate shows different colors.The polymer monomer can form polymer network by polymerization reaction.For existing
Cholesteric liquid crystal handwriting pad, conductive layer usually formed by inorganic conductive material ITO by sputtering vacuum process, is bent
Shi Rongyi cracking, easily influence electric conductivity；In addition, the equipment for vacuum sputtering is expensive, therefore its production cost is higher.
On the other hand, the colour brightness of existing cholesteryl liquid crystal handwriting pad is lower, and display effect is to be improved, master
Reason is wanted to be in liquid-crystal composition that cholesteric liquid crystal is difficult to mutually separate with polymer monomer, and the display of liquid crystal handwriting pad is imitated
Fruit has larger association with the phase separation degree of liquid-crystal composition, and when phase separation degree is higher, the writing color of handwriting pad can be got over
Pure, brightness can be higher, and when phase separation degree is lower, the display effect of handwriting pad is then poor.
[utility model content]
It is hand-written using organic conductive material as the liquid crystal of conductive layer that the purpose of the utility model is to solve the above problems and to provide a kind of
Plate, cholesteric liquid crystal, which not only can be improved, with polymer monomer phase separation degree improves display effect, but also can reduce production
Cost improves the service performance of conductive layer.
To achieve the above object, the utility model provides a kind of hand-written using organic conductive material as the liquid crystal of conductive layer
Plate, which is characterized in that it successively includes first substrate, the first conductive layer, polymeric layer, cholesteric liquid crystal mixed layer, the second conduction
Layer and the second substrate, first conductive layer are attached on a side surface of the first substrate and shape by organic conductive material
At the cholesteric liquid crystal mixed layer is solidified to form by liquid-crystal composition, and the liquid-crystal composition includes cholesteric liquid crystal and gathers
Monomer adduct, the polymeric layer polymerize and shape after mutually being separated by the polymer monomer in liquid-crystal composition with cholesteric liquid crystal
At second conductive layer is attached to a side surface of the second substrate by organic conductive material and/or inorganic conductive material
Above formed.
Further, the organic conductive material and the polymer list in the liquid-crystal composition for forming first conductive layer
Body is affinity.
Further, first conductive layer is poly- 3,4-rthylene dioxythiophene-polystyrene sulfonate film layer, graphene
One of layer, carbon nanotube layer, polyaniline are a variety of.
Further, second conductive layer is tin indium oxide film layer, poly- 3,4-rthylene dioxythiophene-polystyrene sulphur
One of sorrel layer, graphene layer, carbon nanotube layer, polyaniline are a variety of.
Further, the first substrate and the second substrate are made of PET and PC material.
Further, the cholesteric liquid crystal mixed layer is solidified to form by liquid-crystal composition by UV.
Further, organic conductive material by being coated on a side surface of the first substrate by first conductive layer
Above formed.
Further, organic conductive material by being coated on a side surface of the second substrate by second conductive layer
It is above formed, or by forming inorganic conductive material vacuum sputtering and on a side surface of the second substrate.
The favorable attributes of the utility model are, efficiently solve the above problem.The utility model by organic by leading
Electric material is as conductive layer, induced polymer monomer and cholesteric phase using the compatibility of organic conductive material and polymer monomer
Liquid crystalline phase separation, thus improve phase separation degree and improve display effect, so that the written handwriting color of handwriting pad is purer, brightness
It is brighter.In addition, processing step can also be simplified using organic conductive material, improve the service performance of the first conductive layer and reduce life
Produce cost.The utility model using organic conductive material as the liquid crystal handwriting pad of conductive layer, have display effect more preferably, be easy to real
It applies, be conducive to the characteristics of reducing production cost, it has strong practicality, preferably widelys popularize.
[Detailed description of the invention]
Fig. 1 is the principle schematic diagram of the utility model.
Wherein, first substrate 10, the first conductive layer 20, polymeric layer 30, cholesteric liquid crystal mixed layer 40, cholesteric liquid crystal
41, polymer 42, the second conductive layer 50, the second substrate 60.
[specific embodiment]
The following example is being explained further and supplementing to the utility model, does not constitute any limit to the utility model
System.
The utility model is by the broad outlines of the liquid crystal handwriting pad of conductive layer of organic conductive material, with organic
Conductive material is as conductive layer, so that phase separation degree of the cholesteric liquid crystal 41 with polymer monomer can be improved, to change significantly
The display effect of kind handwriting pad, so that the handwriting color of handwriting pad is purer, brightness is higher.In addition, organic conductive material with
Coating method is attached on first substrate 10, can not only reduce production cost, but also its is flexible and improve its service performance.
Specifically, as shown in Figure 1, the utility model is successively wrapped by the liquid crystal handwriting pad of conductive layer of organic conductive material
Include first substrate 10, the first conductive layer 20, polymeric layer 30, cholesteric liquid crystal mixed layer 40, the second conductive layer 50 and the second substrate
60。
The first substrate 10 and the second substrate 60 can be transparent, and can not also be transparent.In the present embodiment, preferably
To be transparent.The first substrate 10 and the second substrate 60 can be selected the materials such as conventional PET or PC and be made, the present embodiment
In, preferably it is made of PET material.
First conductive layer 20 and the second conductive layer 50 are used to power on and apply electricity to the cholesteric liquid crystal mixed layer 40
It presses and cholesteric liquid crystal molecule is driven to be overturn, cholesteric liquid crystal molecule is made to reset and wipe out written handwriting.
First conductive layer 20 is attached on first substrate 10 by organic conductive material and is formed.The organic conductive material
Material includes poly- 3,4- ethene dioxythiophene-polystyrolsulfon acid (it is referred to as PEDOT:PSS), graphene, carbon nanotube, polyphenyl
One of amine is a variety of.The organic conductive material is with well known coating process coating in the side table of the first substrate 10
The first conductive layer 20 of film-form can be formed on face.In the present embodiment, preferably PEDOT:PSS as organic conductive material,
It is attached on a side surface of the first substrate 10 and forms PEDOT:PSS film, is i.e. first conductive layer of the present embodiment
20。
Second conductive layer 50 is attached in the second substrate 60 by well known conductive material and is formed, both can be by organic
Conductive material is formed, and can also be formed by inorganic conductive material.The organic conductive material includes that PEDOT:PSS, graphene, carbon are received
One of mitron, polyaniline are a variety of.The inorganic conductive material includes tin indium oxide (it is referred to as ITO).When described
When two conductive layers 50 select organic conductive material, can well known coating process coating in the side of the second substrate 60
On surface；When second conductive layer 50 selects inorganic conductive material, when such as ITO, well known vacuum sputtering work can be used
Skill is formed on a side surface of the second substrate 60.In the present embodiment, the preferred PEDOT:PSS of second conductive layer 50 makees
For conductive material.
The cholesteric liquid crystal mixed layer 40 is solidified to form by liquid-crystal composition, in the present embodiment, with the cured side of UV
Formula is solidified to form.The composition of the liquid crystal compound, can refer to well-known technique comprising cholesteric liquid crystal 41 and polymer list
Body.The cholesteric liquid crystal 41 is deployed by liquid crystal and chiral agent.The polymer monomer can refer to well-known technique and select
For the polymer monomer of handwriting pad, such as acrylics etc..Cholesteric liquid crystal point in the cholesteric liquid crystal mixed layer 40
Son is bistable state cholesteric phase liquid crystal molecule, can show two states: pellucidity and color reflection state.Pass through first
Conductive layer 20 and the second conductive layer 50 apply voltage pulse can be by the state of cholesteric liquid crystal molecule electric drive to substantially transparent
Handwriting pad is initialized, to dispose the written handwriting on handwriting pad.When being write, pressure acts on first substrate 10
When, the cholesteric liquid crystal molecule inside corresponding position is flipped under pressure and changes into color from pellucidity
Reflective condition makes handwriting pad show written handwriting so as to reflect color.If not to cholesteric liquid crystal mixed layer 40
If applying voltage, the written handwriting that is formed because pressure is streaked by it is permanent it is retained on the jotting surface；Only when passing through the
When one conductive layer 20 and the second conductive layer 50 apply voltage to cholesteric liquid crystal mixed layer 40, internal cholesteric liquid crystal molecule is
It can overturn to pellucidity and realize the effect for wiping written handwriting.
The polymeric layer 30 polymerize after being separated by the polymer monomer in liquid-crystal composition with 41 phase of cholesteric liquid crystal and
It is formed, is in the nature that polymer monomer is formed by polymerization.
When processing, first organic conductive material is attached on first substrate 10 and forms first base material, by organic conductive material
Material or inorganic conductive material are attached in the second substrate 60 and form the second substrate.Thereafter by polymer monomer and cholesteric liquid crystal
41 are mixed and obtain liquid-crystal composition.Then first base material, liquid-crystal composition, the second substrate three are combined with each other,
Then solidify liquid-crystal composition by the way of UV photocuring.During being somebody's turn to do, since the first conductive layer 20 is by organic conductive
Material is formed, and containing carbon, carbon is also contained in polymer monomer, therefore, the organic conductive in the first conductive layer 20
Material and the polymer monomer in liquid-crystal composition are affinity, can induced polymer monomer towards 20 side of the first conductive layer
The polymeric layer 30 is formed to aggregation.In addition, when using UV photocuring, when UV light irradiates from top to down, due to cholesteric
For phase liquid crystal 41 to the absorption of UV light, the position UV light intensity for causing distance UV light closer is bigger, the position UV far from UV light
Light intensity is smaller, in this way, the polymer monomer reaction speed in liquid-crystal composition at the first conductive layer 20 can faster, to lead
The polymer monomer concentration at the first conductive layer 20 is caused to reduce；And in order to balance the concentration of whole system, it is led far from first
Polymer monomer at electric layer 20 spontaneous will be migrated towards 20 direction of the first conductive layer, so that the polymerization in whole system
Object monomer forms the polymeric layer 30 towards aggregation at the first conductive layer 20.
In this way, in the first conductive layer 20 under the double action of the affine inducing action of organic conductive material and UV irradiation,
Polymer monomer in liquid-crystal composition can preferably assemble towards 20 direction of the first conductive layer and improve polymer monomer with
The phase separation degree of cholesteric liquid crystal 41, so that the written handwriting brightness of handwriting pad is brighter, color is purer, and display effect is more
It is good.
It, can be with it should be noted that the utility model is using organic conductive material as the conductive material of the first conductive layer 20
The phase separation degree of polymer monomer and cholesteric liquid crystal 41 is improved, and for cholesteric liquid crystal mixed layer 40, it is internal big
After partial polymer monomer forms polymeric layer 30 after assembling towards 20 direction of the first conductive layer, still there is partial polymer monomer
It is blended in cholesteric liquid crystal 41 and can not mutually separate completely and form polymer 42, it is poly- in cholesteric liquid crystal mixed layer 40
Closing object 42 should be at the position of polymeric layer 30, and the compound sticking effect between each layer of handwriting pad can be improved.
Just form as a result, the utility model using organic conductive material as the liquid crystal handwriting pad of conductive layer, with organic
Conductive material forms the first conductive layer 20, and cholesteric liquid crystal 41 may make mutually to be separated with polymer monomer more thoroughly, to reach
Color is pure, written handwriting effect of high brightness.In addition, organic conductive material with coating process coating on first substrate 10,
It can be bent in post-production, thus its service performance can be improved, and coating process is compared to sputtering vacuum process, work
Skill is simpler, and production cost is lower, and therefore, the utility model has by the liquid crystal handwriting pad of conductive layer of organic conductive material
Have the characteristics that display effect is more excellent, production cost is lower, easy to implement, it has strong practicality, preferably widelys popularize.
Although being disclosed by above embodiments to the utility model, the scope of the utility model is not limited to
In this, under conditions of conceiving without departing from the utility model, above each component can be understood similar with technical field personnel
Or equivalent element is replaced.
Claims (8)
1. a kind of using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that it successively includes first substrate
(10), the first conductive layer (20), polymeric layer (30), cholesteric liquid crystal mixed layer (40), the second conductive layer (50) and the second substrate
(60), first conductive layer (20) is attached on a side surface of the first substrate (10) and shape by organic conductive material
At the cholesteric liquid crystal mixed layer (40) is solidified to form by liquid-crystal composition, and the liquid-crystal composition includes cholesteric liquid crystal
(41) and polymer monomer, the polymeric layer (30) is by the polymer monomer and cholesteric liquid crystal (41) phase in liquid-crystal composition
It polymerize after separation and is formed, second conductive layer (50) is attached to described by organic conductive material and/or inorganic conductive material
It is formed on one side surface of the second substrate (60).
2. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described in formation
The organic conductive material and the polymer monomer in the liquid-crystal composition of first conductive layer (20) are affinity.
3. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described first
Conductive layer (20) is poly- 3,4- ethene dioxythiophene-polystyrene sulfonate film layer, graphene layer, carbon nanotube layer, polyaniline
One of or it is a variety of.
4. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described second
Conductive layer (50) is tin indium oxide film layer, poly- 3,4- ethene dioxythiophene-polystyrene sulfonate film layer, graphene layer, carbon nanometer
One of tube layer, polyaniline are a variety of.
5. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described first
Substrate (10) and the second substrate (60) are made of PET or PC material.
6. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that the cholesteric
Liquid crystal mixed layer (40) is solidified to form by liquid-crystal composition by UV.
7. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described first
Conductive layer (20) is formed and on the side surface that organic conductive material is coated on to the first substrate (10).
8. as described in claim 1 using organic conductive material as the liquid crystal handwriting pad of conductive layer, which is characterized in that described second
Conductive layer (50) is formed and on the side surface that organic conductive material is coated on to the second substrate (60), or pass through by
Inorganic conductive material vacuum sputtering is formed on a side surface of the second substrate (60).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153296.0U CN208922028U (en) | 2018-07-19 | 2018-07-19 | Using organic conductive material as the liquid crystal handwriting pad of conductive layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821153296.0U CN208922028U (en) | 2018-07-19 | 2018-07-19 | Using organic conductive material as the liquid crystal handwriting pad of conductive layer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297350A (en) * | 2019-08-19 | 2019-10-01 | 安徽方兴光电新材料科技有限公司 | A kind of luminous energy writing device |
| CN111488065A (en) * | 2020-05-26 | 2020-08-04 | 深圳市宝立创科技有限公司 | Cholesteric liquid crystal handwriting board and preparation method thereof |
| CN113050337A (en) * | 2021-04-01 | 2021-06-29 | 深圳市宝立创科技有限公司 | Liquid crystal handwriting board and preparation method thereof |
-
2018
- 2018-07-19 CN CN201821153296.0U patent/CN208922028U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297350A (en) * | 2019-08-19 | 2019-10-01 | 安徽方兴光电新材料科技有限公司 | A kind of luminous energy writing device |
| CN111488065A (en) * | 2020-05-26 | 2020-08-04 | 深圳市宝立创科技有限公司 | Cholesteric liquid crystal handwriting board and preparation method thereof |
| CN113050337A (en) * | 2021-04-01 | 2021-06-29 | 深圳市宝立创科技有限公司 | Liquid crystal handwriting board and preparation method thereof |
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