CN106527007B - Classroom liquid crystal blackboard system, blackboard brush, flexible hand-writing liquid crystal screen and its manufacture method - Google Patents
Classroom liquid crystal blackboard system, blackboard brush, flexible hand-writing liquid crystal screen and its manufacture method Download PDFInfo
- Publication number
- CN106527007B CN106527007B CN201610955951.3A CN201610955951A CN106527007B CN 106527007 B CN106527007 B CN 106527007B CN 201610955951 A CN201610955951 A CN 201610955951A CN 106527007 B CN106527007 B CN 106527007B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- blackboard
- writing
- matrix
- conductive layer
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13718—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a change of the texture state of a cholesteric liquid crystal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention discloses a kind of flexible hand-writing liquid crystal screen, including the first matrix and the second matrix being oppositely arranged, the side of first matrix and the second matrix phase pair is provided with the first conductive layer, relative first conductive layer is provided with the second conductive layer on second matrix, cholesteric liquid crystal phase is filled between first conductive layer and the second conductive layer, the mixture of prepolymer high polymer material and chiral dopant, first matrix, second matrix, first conductive layer, second conductive layer is transparent material, first matrix or the second matrix are set with provided with the relative opposite side in conductive layer side in black；The material of first matrix and the second matrix is PET film.Invention additionally discloses a kind of manufacture method of flexible hand-writing liquid crystal screen, a kind of liquid crystal blackboard and a kind of classroom blackboard system.
Description
Technical field
The present invention relates to teaching aid technical field, more particularly to a kind of classroom liquid crystal blackboard system, blackboard brush, flexible hand-written liquid
Crystalline substance screen and its manufacture method.
Background technology
Blackboard is indispensable educational aid in teaching process.Traditional blackboard is put down for a fixed monoblock on the wall
Plate, it is impossible to it is mobile, and due to needing to use chalk-writing and erasing, easily produce dust.In order to solve the problems, such as dust, research and development
Personnel have developed a kind of electronic blackboard to substitute traditional blackboard, and liquid crystal display device is shown and filled by this kind of electronic blackboard as courseware
Put, courseware storage is connected with liquid crystal display device in the storage device and then by storage device first then exports and show class
Part.Although this kind of blackboard can solve the problems, such as dust, Free Writing can not be realized.In recent years, there is one kind in the market
Liquid crystal handwriting pad, such liquid crystal handwriting pad may be implemented in the liquid crystal hand by the use of liquid crystal material as display ground, user with hard thing
Write and Free Writing is realized on plate, but because technique and material limit, the size of such liquid crystal handwriting pad is smaller, and therefore, it is difficult to apply
Traditional blackboard is substituted in classroom.
The content of the invention
The main object of the present invention is to propose a kind of classroom blackboard system, it is intended to solve the hand-written board size of current liquid crystal compared with
Small technical problem.
To achieve the above object, a kind of flexible hand-writing liquid crystal screen proposed by the present invention, the flexible hand-writing liquid crystal screen include
It is conductive that the side of the first matrix and the second matrix being oppositely arranged, first matrix and the second matrix phase pair is provided with first
Layer, relative first conductive layer is provided with the second conductive layer on second matrix, between first conductive layer and the second conductive layer
It is filled with the mixture of cholesteric liquid crystal phase, prepolymer high polymer material and chiral dopant, first matrix, the second base
Body, the first conductive layer, the second conductive layer are transparent material, and first matrix or the second matrix are relative with provided with conductive layer side
Opposite side in black set, the material of first matrix and the second matrix is PET film.
Preferably, the cholesteric liquid crystal layer also includes chiral dopant, and the chiral dopant is in the cholesteric liquid crystal layer
Account for 5%~40%.
Preferably, the cholesteric liquid crystal phase reflection visible ray temperature of the mixture is less than 45 degrees Celsius.
Preferably, the cholesteric liquid crystal phase is steady with first that black or handwriting pad background color are shown because of scattering
Second stable state of state and reflection writing color；When the cholesteric liquid crystal phase is in the first stable state, the cholesterol phase is incident to
Liquid crystal is in reflective condition and shows person's handwriting in color visible, and the visible ray once passes through first matrix,
One conductive layer, cholesteric liquid crystal phase and the second conductive layer are incident on the second matrix.
Preferably, the writing front is seen as yellow, and side is seen as green；Or the writing front is seen as green, from
Side is seen as blueness.
Preferably, the fast black base bottom is provided with radio receiver and controller；The radio receiver with it is described
The input electrical connection of controller, the output end of the controller electrically connects with the flexible hand-writing liquid crystal screen, and the control
The control instruction that device receives according to the radio receiver controls the "on" position of the flexible hand-writing liquid crystal screen.
Preferably, the radio receiver includes WiFi circuitry, infrared receiving circuit, Bluetooth circuit or NFC circuit.
The present invention also provides a kind of blackboard brush, and for wiping the writing on liquid crystal blackboard, the blackboard brush includes blackboard brush
Body, for the heating module heated to body surface and the power module for being powered to heating module.
Preferably, the heating module includes heater strip and the temperature control circuit being connected with heater strip；The blackboard brush also wraps
The charging module being connected with power module is included, the charging module includes the charging inlet for being arranged on the blackboard brush body, with
And the charging inlet adaptation, the cradle for being charged for power module.
Preferably, the heating module includes carbon fiber exothermic wire；The blackboard brush also includes being arranged on the carbon fiber
The leak-proof device on heating wire periphery.
Preferably, the heating module is used to the body surface temperature being heated to 40 to 75 degrees Celsius.
The present invention also provides a kind of classroom blackboard system, including liquid crystal blackboard and foregoing blackboard brush, the liquid crystal blackboard bag
Include foregoing flexible hand-writing liquid crystal screen and the frame for installing the flexible hand-writing liquid crystal screen.
Preferably, the liquid crystal blackboard is split settings, and quantity is two to six pieces, and the classroom blackboard system also includes using
In the guide rail installed the frame and slided for the frame.
Preferably, the liquid crystal blackboard is two pieces, and the classroom blackboard system also includes being used for the peace for installing liquid crystal blackboard
Frame up, the installing frame is provided centrally with liquid crystal display, and the liquid crystal blackboard is slidably connected with the installation frame, and institute
When stating liquid crystal blackboard and sliding into the installing frame center, the liquid crystal display is blocked.
Preferably, the quantity of the liquid crystal blackboard is two pieces to six pieces.
Preferably, the monoblock of liquid crystal blackboard one is integrally formed, and width dimensions are 2 meters to 6 meters, and is provided with writing erasing
Module.
Preferably, above-mentioned blackboard system also includes being provided for the external light source brightness regulating apparatus for strengthening writing brightness.
Preferably, the brightness regulating apparatus is the LED for being arranged on frame periphery；Or the brightness regulating apparatus is
Light path is directed at the shot-light of liquid crystal blackboard.
The present invention also provides a kind of manufacture method of flexible hand-writing liquid crystal screen, comprises the following steps：
By two layers coiled, surface has in the PET base material of nesa coating and deployed, and filling cholesterol phase is included wherein
The mixture of liquid crystal, prepolymer high polymer material and the chiral dopant for controlling cholesteric liquid crystal phase pitch, is made soft
Property hand-writing liquid crystal screen crude green body；
By the crude green body ultra-violet curing and wind, flexible hand-writing liquid crystal screen semi-finished product are made；
Cut the semi-finished product and electric-controlled plate is installed.
Preferably, it is described by two layers coiled, surface has in the PET base material of nesa coating and deployed and filling wherein
Comprising cholesteric liquid crystal phase, prepolymer high polymer material and for controlling mixing for the chiral dopant of cholesteric liquid crystal phase pitch
Compound, the step of flexible hand-writing liquid crystal screen crude green body is made, include：
Two layers of PET base material with conducting film is placed among two horizontal positioned squeeze-film rollers；
Between the mixture is vertically dropped into two PET base materials, the pressure between two rubber rolls is controlled so that liquid crystal thickness
Degree is uniformly and smooth.
Preferably, the crude green body dried and wound performing, before the step of flexible hand-writing liquid crystal screen semi-finished product are made
Also include：
Measure the flexible hand-writing liquid crystal screen crude green body；
It is flexible hand-written to ensure the flexible hand-writing liquid crystal screen crude green body to be cut, make electrode and carried out edge sealing
The stability of liquid crystal display.
The present invention two by being provided with filling cholesteric liquid crystal phase, prepolymer high polymer material in the PET film of conductive layer
And chiral dopant, and fast black base bottom is set outside PET film, and hand-writing liquid crystal screen can be made to realize large scale, can extensive use
In fields such as classroom blackboards.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the structural representation in the flexible embodiment of hand-writing liquid crystal screen one of the present invention；
Fig. 2 is the structural representation of the flexible another embodiment flexibility hand-writing liquid crystal screen of hand-writing liquid crystal screen of the present invention；
Fig. 3 is the structural representation of the embodiment of classroom blackboard system one of the present invention；
Fig. 4 is the structural representation of the embodiment of blackboard brush one of the present invention；
Fig. 5 is the side structure schematic diagram of blackboard brush shown in Fig. 4 of the present invention；
Fig. 6 is the schematic flow sheet of the embodiment of manufacture method one of the flexible hand-writing liquid crystal screen of the present invention；
Fig. 7 is the schematic flow sheet of the another embodiment of manufacture method of the flexible hand-writing liquid crystal screen of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
The present invention proposes a kind of flexible hand-writing liquid crystal screen, reference picture 1, and the flexible hand-writing liquid crystal screen 100 includes being oppositely arranged
The first matrix 10 and the second matrix 20, first matrix 10 side relative with the second matrix 20 is provided with the first conductive layer
11.Relative first conductive layer 11 is provided with the second conductive layer 21 on second matrix 20, and first conductive layer 11 and second is led
The mixture 30 of cholesteric liquid crystal phase, high polymer material and chiral dopant, first matrix are filled between electric layer 21
10th, the second matrix 20, the first conductive layer 11, the second conductive layer 21 are transparent material, the matrix of the first matrix 11 or second
21 are set with provided with the relative opposite side in conductive layer side in black.Black, which is set, to be coated with by black ink or matrix is straight
It is connected in black matrixes realization.The material of the matrix 20 of first matrix 10 and second is PET film.
In the embodiment of the present invention, conductive layer can be first set in PET film, then will be provided with the PET film of conductive layer
It is opposed, the first matrix 10, the first conductive layer 11 and the second matrix 20, the second conductive layer 21 are formed, it is then filling wherein to include
The mixture 30 of cholesteric liquid crystal phase, prepolymer high polymer material and chiral dopant.PET film is flexible material, one
As set in rolls, size can free building layout.The material of conductive layer can be tin indium oxide, and it adheres to the maturation that technique is this area
Technology, it is not described here in detail.Filling mixture 30 and then the techniques such as UV solidifications are carried out to it, then can be according to set
Blackboard ruler cun is cut out.Finally, fast black base bottom 40 is set in the outside of a PET film as display ground, and set automatically controlled
Plate is to control the "on" position between the first conductive layer 11 and the second conductive layer 21.In the present embodiment, cholesteric liquid crystal phase has
The first stable state of black or handwriting pad background color and the second stable state of reflection writing color are shown because of scattering；When the courage
When sterol phase liquid crystal is in the first stable state, being in reflective condition in color visible and show of the cholesteric liquid crystal phase is incident to
Person's handwriting, and the visible ray is once incident by first matrix, the first conductive layer, cholesteric liquid crystal phase and the second conductive layer
To the second matrix.In the embodiment of the present invention, cholesteric liquid crystal phase has bistable state, in the first conductive layer 11 and the second conductive layer
After 21 are powered, the first stable state will be presented in cholesteric liquid crystal phase；After the compression of the first base layer 11 so that the courage at face compression position
The second stable state is presented in sterol phase liquid crystal.Above-mentioned chiral dopant is specifically used for the rotation pitch of adjustment cholesteric liquid crystal phase, so as to
The wavelength of cholesteric liquid crystal phase reflecting light is controlled, so as to change the color that flexible screen is shown.In the embodiment of the present invention, by
Two are provided with filling cholesteric liquid crystal phase, prepolymer high polymer material and chiral dopant in the PET film of conductive layer, and one
Fast black base bottom is set outside PET film, hand-writing liquid crystal screen can be made to realize large scale application, can be widely applied to the neck such as classroom blackboard
Domain.
In view of the brightness of the handwriting on flexible hand-writing liquid crystal screen 100, the cholesteric liquid crystal layer (mixes in the present invention
Thing) chiral dopant is also included, the chiral dopant accounts for 5%~40% in the cholesteric liquid crystal layer, specifically can be according to chirality
The type of dopant determines.In one embodiment, chiral dopant is S811 (model) or R811 (model), in liquid crystal total amount
In account for 30% or so, now, handwriting is shown as from front in flexible hand-writing liquid crystal screen 100 and is seen as green writing, from side
It is seen as blue writing.It is insensitive to blue writing in view of human eye, consider from definition, large scale liquid crystal blackboard is not recommended typically
Use blue writing.Preferably, in another embodiment, the chiral dopant of another model may be selected, its component accounts for mixture
29% or so of 30 total amounts, now, handwriting are shown as from front in flexible hand-writing liquid crystal screen 100 and are seen as yellow writing, from
Side sees also be green writing.In another embodiment, chiral dopant accounts for the 10% of the total amount of mixture 30, and now back end is white
Color, handwriting are shown as from front in flexible hand-writing liquid crystal screen 100 and are seen as blackness handwriting, are also blackness handwriting from the side.
In another embodiment, chiral dopant is that R1011 and R811 is used in mixed way, and 10% or so, now, book are accounted in liquid crystal total amount
The mark that writes is shown as from front in flexible hand-writing liquid crystal screen 100 is seen as yellow writing.
In the embodiment of the present invention, it can be write by finger, Special writing pen etc. on flexible hand-writing liquid crystal screen 100, book
The writing write can be wiped by changing the flexible "on" position of hand-writing liquid crystal screen 100, for example, above-mentioned flexible hand-writing liquid crystal screen
100 may also include button and the controller for controlling the flexible "on" position of hand-writing liquid crystal screen 100 according to key-press status, by this
Button and controller, can all wipe can also part erasing writing writing.For example, some classroom blackboards are polylith small sizes
Flexible hand-writing liquid crystal screen 100 it is stitched together, if the size of flexible hand-writing liquid crystal screen 100 is smaller, can be set a button, this is pressed
"on" position between key control the first conductive layer 11 and the second conductive layer 21 so that liquid crystal stable state changes, so as to once
Property whole erasing writing writing.Certainly, key erasing mode is also suitable large scale flexibility hand-writing liquid crystal screen 100.In others
In embodiment, if the size of flexible hand-writing liquid crystal screen 100 is larger, can by the first conductive layer 11 and the subregion of the second conductive layer 21 or
Person's piecemeal is correspondingly arranged, and so as to which a monoblock flexibility hand-writing liquid crystal screen 100 is divided into multiple regions, each region sets one and opened
Close, to control the "on" position of each zone conducts current layer so that liquid crystal stable state changes, so as to erasing writing writing.The switch
It can be button, or wireless switching.In addition it is also possible to handwriting is wiped by the way of blackboard brush, should
Mode can realize selective erase, also not change the use habit of Faculty and Students, specifically, erasing and the nothing of blackboard brush
The erasing implementation of wiretap will elaborate in subsequent embodiment.
In a preferred embodiment, above-mentioned flexible hand-writing liquid crystal screen 100 also includes being used for the storage dress for storing written contents
Put and for exporting the coffrets of the written contents.The storage device can store written contents, by written contents to scheme
The mode of piece either document (such as PDF or TXT documents) stores.Coffret can be that the USB being arranged on electric-controlled plate is deposited
Store up interface or TF memory interfaces.Coffret can also be wireless transmission interface, user after writing, can synchronous sharing extremely
Each client.Flexible hand-writing liquid crystal screen 100 can be electrically connected with computer by coffret in the present invention, by what is currently write
It is interior to be accidentally sent to computer, to preserve the content currently write.The content of writing can also be sent to other by the computer
Connected computer, to be shown on other computers, so as to realize remote teaching.
As it was previously stated, in the present invention, both can button in a manner of " key erasing " erasing writing writing, can also
Selective erase handwriting by other means.Shown in reference picture 2, in a preferred embodiment of the present invention, on fast black base bottom 40
Provided with radio receiver 41 and controller 42；Radio receiver 41 electrically connects with the input of the controller 42, described
The output end of controller 42 electrically connects with the flexible hand-writing liquid crystal screen 100, and the controller 42 is according to the wireless receiving
The control instruction that device 41 receives controls the "on" position of the flexible hand-writing liquid crystal screen 100.Radio receiver 41 includes
WIFI circuits, infrared receiving circuit, Bluetooth circuit or NFC circuit.Specifically, the output end of controller 42 and the first conductive layer 11
Or second conductive layer 21 be connected, radio receiver 41 is to receive the erasing instruction that user wirelessly sends, by its turn
Output to controller 42, controller 42 is controlled between the first conductive layer 11 and the second conductive layer 21 according to the erasing instruction after changing
"on" position, so that cholesterol liquid crystal stable state switches, realize the erasing of handwriting.The present embodiment can be realized wirelessly
Erasing, improve the convenience that user uses liquid crystal blackboard.
In the preferred embodiment, handwriting can also be wiped by way of heating, the technical scheme will be
Elaborated in the embodiment of follow-up blackboard brush.
The present invention also provides a kind of classroom blackboard system, and shown in Figure 3, it includes liquid crystal blackboard, the liquid crystal blackboard
Frame 101 including foregoing flexible hand-writing liquid crystal screen 100 and for installing the flexible hand-writing liquid crystal screen 100, in frame 101
Button 102 is provided with, is set for wiping the written contents on flexible hand-writing liquid crystal screen 100 or sharing written contents to outside
It is standby.In the embodiment of the present invention, liquid crystal blackboard could be arranged to a monoblock, it can also be provided that polylith.In one embodiment, liquid crystal
The monoblock of blackboard one is integrally formed, and width dimensions are 2 meters to 6 meters, and is provided with writing erasing module.In the embodiment of the present invention, liquid
Brilliant blackboard is arranged to a monoblock, i.e., flexible hand-written liquid crystal film is global formation, and its width dimensions scope is 2 meters to 6 meters.Another
In embodiment, liquid crystal blackboard is split settings, and quantity is two to six pieces, and the classroom blackboard system also includes described for installing
Frame 101 and the guide rail 200 slided for the frame 101.
It is understood that the structure of above-mentioned guide rail 200 can be configured according to being actually needed, in the present embodiment,
The upper side frame of the in the vertical direction of guide rail 200 and lower frame form chute oppositely facing sunken inside；The liquid crystal blackboard
Two relative edge's frames are respectively in chute.Certainly, the frame of liquid crystal blackboard can also be arranged to chute-like, and the two of guide rail 200
It is located at respectively in the frame of liquid crystal blackboard with respect to frame.
Specifically, the quantity and position correspondence of upper side frame and lower frame chute, the chute quantity on lower frame can be
One can also be two；In the present embodiment, it is preferable that above-mentioned chute is at least two, and two liquid crystal blackboards are located at different cunnings
In groove.
Further, in order to prevent liquid crystal blackboard from being moved during use, in the present embodiment, it is preferable that described to lead
The upper side frame and/or lower frame of rail are provided with buckle position, and the correspondence position of the liquid crystal blackboard is provided with what is be adapted to the buckle position
Detain platform.
In the present embodiment, above-mentioned buckle position can be an elastic button, and above-mentioned button platform can correspond to a hole clipping.Moving
In dynamic process, when buckle position and chuck engage, reach being fixed for liquid crystal blackboard and guide rail 200.
Further, power for convenience, in the present embodiment, power connection preferably is set at the back side of lower frame；Institute
The power line of the power line and liquid crystal display 300 of stating liquid crystal blackboard is connected with the power connection.
In another embodiment, liquid crystal blackboard is two pieces, and the installing frame is provided centrally with liquid crystal display 300 (can
Think TV etc.), the liquid crystal blackboard is slidably connected with the installation frame, and the liquid crystal blackboard slides into the installing frame
During center, blocking the liquid crystal display, to set 3 standby.The embodiment of the present invention is by setting guide rail 200, on the guide rail 200
Two liquid crystal blackboards and the liquid crystal display 300 located at the center of guide rail 200；Wherein described liquid crystal blackboard and the guide rail
200 are slidably connected, and the liquid crystal blackboard blocks the liquid crystal when sliding into 200 center of guide rail on the guide rail 200
Display device 300.During so as to normal use, liquid crystal blackboard can be slid into the both sides of guide rail 200, can be with when unused
Liquid crystal blackboard is slid into the center of guide rail 200, so as to block liquid crystal display 300, avoid liquid crystal display 300 with it is outer
Boundary directly contacts, and can effectively improve the security that liquid crystal display 300 uses, extend making for liquid crystal display 300
Use the life-span.
When liquid crystal blackboard is polylith, each flexible hand-writing liquid crystal screen 100 may be configured as same writing color, may be alternatively provided as
Different writing colors, with enhancing effect, for example, the writing that one piece of flexible hand-writing liquid crystal screen is shown is white, another piece of display
For green or yellow etc..In order to realize different writing effects, the chirality in each flexible hand-writing liquid crystal screen 100 can be mixed
Miscellaneous agent content adjustment.
In the embodiment of the present invention, the effect of above-mentioned liquid crystal display 300 is to play or shows different types of file,
Further, can also be in the surface of liquid crystal display 300 one layer of flexible hand-writing liquid crystal screen of setting to realize Free Writing, this is soft
Property hand-writing liquid crystal screen can work as liquid crystal display by the use of liquid crystal display 300 as fast black base bottom 40.The embodiment of the present invention is led to
Cross and flexible hand-writing liquid crystal screen is set on the surface of liquid crystal display 300, it is possible to achieve the full-scale scope writing of classroom blackboard.
In other embodiment, the liquid crystal display 300 positioned at frame centre position can be replaced with liquid crystal blackboard, the centre position
Liquid crystal blackboard may be configured as being set to activity, may be alternatively provided as fixation, in the present embodiment, the number of liquid crystal blackboard 3
Amount is arranged to three pieces or four pieces or more polylith.
In view of some classroom light reasons spectators may be caused can not to see written contents clearly, in one embodiment of the invention,
Also it is provided for strengthening the brightness regulating apparatus of writing brightness in above-mentioned classroom blackboard system.The brightness regulating apparatus can be to set
Put the LED on frame periphery, or light path is directed at the shot-light of liquid crystal blackboard.
In writing process, it is often necessary to which erasing writing content, based on this, the present invention also provides a kind of blackboard brush 1, is used for
Wipe the writing on liquid crystal blackboard.Described in reference picture 4 and Fig. 5, in the embodiment of the present invention, blackboard brush 1 includes blackboard brush body
1011st, for the heating module 1012 heated to the surface of body 1011 and the power supply mould for being powered to heating module 1012
Block (not shown).In the embodiment of the present invention, its shape of body 1011 can be consistent with existing blackboard brush shape, can be side
Shape or ellipse etc..The erasing surface of body 1011 can be plane, and heating module 1012 can be the materials such as heating wire,
For the body surface temperature to be heated into preset temperature (such as 75 degrees Celsius or 40 degrees Celsius to 45 degrees Celsius etc.).It is logical
Cross research to understand, the cholesteric liquid crystal phase reflection visible ray temperature of mixture is generally 60 degree or so, and can change.If
Writing is wiped by the way of heating, it is necessary to consider environment temperature and safety.The present inventor passes through test of many times, hair
It is the reasonable stagnation temperature that uses that the cholesteric liquid crystal phase of mixture reflection visible ray temperature now is reduced into 40-45 degrees centigrades
Degree.When more than the critical-temperature, cholesterol liquid crystal loses liquid crystal property and becomes the multidirectional same sex and can not reflect, you can will show
Content is wiped.For example, adding more low molecular weight liquid crystal chemical compositions in the mixture, make the flexible hand-writing liquid crystal screen 100
Phase transition temperature reduce.Based on this technical principle, the embodiment of the present invention under the premise of the profile of traditional blackboard brush is not changed substantially,
One heater is set wherein, and liquid crystal blackboard local surface temperature is heated into 40 degrees Celsius to 70 by way of heating takes the photograph
Family name's degree, so as to wipe handwriting.The selection of critical-temperature is, it is necessary to consider the display of writing, storage and safety etc.
Factor, in addition it is also contemplated that some transports and extreme weather or environment.In general, in some environment temperatures lower ground area
(such as maximum temperature is in 20 degree or so area), 40 degrees Celsius of critical-temperatures as cholesterol liquid crystal may be selected；At some
The medium area of environment temperature (such as maximum temperature is in 30 degree or so area), it may be selected 55 degrees Celsius and be used as cholesterol liquid crystal
Critical-temperature；It is and Celsius in the higher area of environment temperature (such as maximum temperature is in 40 degree or so area), optional 70
Spend the critical-temperature as cholesterol liquid crystal.
In the embodiment of the present invention, heating module 1012 includes heater strip and the temperature control circuit being connected with heater strip.Temperature control electricity
The effect on road is the heating-up temperature of detection body 1011, and reaching preset value in heating-up temperature (such as 60 degrees Celsius or 40 takes the photograph
Family name's degree) when, interrupt heating；After default time interval, the temperature of detection body 1011 again, if being less than preset value,
Start heating.
In the embodiment of the present invention, blackboard brush 1 may also include the charging module 1013 being connected with power module, the charging module
1013 can directly be charged by civil power, can also be charged by USB plug receptacles.In other examples, power module is also
Power storage module can be included, the power storage module is used for storing electricity, and the setting of power storage module causes blackboard brush 1 to be easy to carry.
In the embodiment of the present invention, heating module 1012 includes carbon fiber exothermic wire.That is, in the embodiment of the present invention, using carbon
Fiber heating wire is as heating element heater.The heat-radiating properties of carbon fiber exothermic wire are preferable, and heat energy is conducted by medium, but
The inside of liquid crystal blackboard is radiated by far infrared light wave, writing erasing is very clean.Moreover, the electromagnetism spoke of carbon fiber exothermic wire
Penetrate smaller, harm to the human body is smaller, safe and healthy.In addition, carbon fiber exothermic wire also has corrosion-resistant, durable performance, because
This, service life is longer.Because the diameter of carbon fiber exothermic wire is smaller, it is possible to spilt from the periphery of blackboard brush 1, human body is made
Into injury, based on this, in the embodiment of the present invention, blackboard brush also includes the leak-proof device for being arranged on the carbon fiber exothermic wire periphery
1014。
The present invention also provides a kind of manufacture method of flexible hand-writing liquid crystal screen, to be molded foregoing soft hand-writing liquid crystal screen
100.Reference picture 6, in one embodiment, the manufacture method comprise the following steps：
Step S10, by two layers coiled, surface has in the PET base material of nesa coating and deployed, and wherein comprising filling
The mixing of cholesteric liquid crystal phase, prepolymer high polymer material and the chiral dopant for controlling cholesteric liquid crystal phase pitch
Thing, flexible hand-writing liquid crystal screen crude green body is made；In the embodiment of the present invention, two PET base materials are oppositely arranged, nesa coating is foregoing
The conductive layer of the first conductive layer described in embodiment/second.Cholesteric liquid crystal phase, prepolymer high polymer material and for controlling
The mixture of the chiral dopant of cholesteric liquid crystal phase pitch can be filling in two layers of PET base material by way of coating, for example,
One PET base material is deployed, aforementioned mixture is then coated with thereon.In coating, it is necessary to control uniformity of mixture, ensure
The thickness and uniformity of mixture.
Step S20, by the crude green body ultra-violet curing and wind, flexible hand-writing liquid crystal screen semi-finished product are made；It can be consolidated by UV
Makeup, which is put, to be dried and is wound to crude green body, it is necessary to ensure solidification effect in the step, can be adjusted by controlling transfer rate
UV solidifies the residence time, so as to ensure solidification effect.
Step S30, cut the semi-finished product and electric-controlled plate is installed.First, by the coiled semi-finished product of canned mixture,
Required size is cut to, and detects its performance and reaches requirement.Then, by the semi-finished product of size well cutting be assembled into casing or
Frame, achieves the performance of product and outward appearance reaches requirement, and after the assay was approved by non-defective unit packaging and storage.
By flexible hand-writing liquid crystal screen made of the inventive method, size be able to can be applied in classroom, meeting with free building layout
Discuss the places such as room, design studio.Can also realize using flexible hand-writing liquid crystal screen repacking traditional blackboard, and to blackboard reequip after
Blackboard is repaired or replaced.
Shown in Figure 7, in a preferred embodiment of the present invention, abovementioned steps S10 may include：
Step S11, two layers of PET base material with conducting film is placed among two horizontal positioned squeeze-film rollers；This hair
In bright, glue-line can be set on steel cylinder surface to form rubber roll, it is then that two rubber rolls are horizontally-opposed.It is thick to make flexible liquid crystal screen
During base, two layers of PET base material with conducting film is attached on two rubber rolls, rubber roll move toward one another is then driven, is attached to rubber roll
On PET base material i.e. start downwards transmission.It should be noted that in the embodiment of the present invention, the surface quality of rubber roll and two glue
The levelness of roller directly affects the uniformity of thickness of liquid crystal layer, therefore, it is necessary to detect the surface of rubber roll in time, if there is asking
Topic, need to be corrected, to improve product yield in time.In addition, the surface pattern of rubber roll also directly affects the quality of flexible liquid crystal screen, need
Pay special attention to.
Step S12, between the mixture is vertically dropped into two PET base materials, control two rubber rolls between pressure so that
Thickness of liquid crystal layer is uniformly and smooth.Should vertically be considered as herein is substantially vertical, i.e., has deviation, the angle of deviation relative to absolute upright
Degree is considered as not influenceing the techniques such as follow-up leveling processing.After mixture is dropped between two PET base materials, between two rubber rolls of control
Pressure, make PET base material keep it is smooth, and cause mixture thickness it is uniform.Then again by transfer roller by flexible liquid crystal screen
UV solidification equipments are sent to, solidify mixture by ultraviolet irradiation.
In the embodiment of the present invention, two flexible liquid crystal screens, and the filling mixture by the way of drip irrigation, work are pressed by rubber roll
Skill is simple, conveniently, also, the size of flexible liquid crystal screen can be realized by adjusting the size of rubber roll, therefore can realize big
Size application.
In the embodiment of the present invention, different writing display colors can be realized by adjusting the component of chiral dopant.It is preferred that
The percentage that chiral dopant is arranged to account for filling mixture total amount is 5%~40%.In one embodiment, chiral dopant
30% in liquid crystal total amount, now, handwriting is shown as from front in flexible hand-writing liquid crystal screen 100 and is seen as light green color writing,
It is blue writing from the side.Preferably, in another embodiment, chiral dopant accounts for 29% or so of the total amount of mixture 30,
Now, handwriting is shown as from front in flexible hand-writing liquid crystal screen 100 and is seen as yellow writing, is also green word from the side
Mark.In another embodiment, chiral dopant accounts for the 10% of the total amount of mixture 30, and now back end is white, and handwriting is soft
Property hand-writing liquid crystal screen 100 is shown as is seen as blackness handwriting from front, is also blackness handwriting from the side.
In previous embodiment, the crude green body is dried and wound performing, the flexible semi-finished product of hand-writing liquid crystal screen 100 are made
Also include before step：
Measure the flexible hand-writing liquid crystal screen crude green body；
The region highly differed to the flexible hand-writing liquid crystal screen crude green body carries out leveling processing.For example, manual survey can be passed through
The height dimension of crude green body is measured, if crude green body highly differs, leveling processing is carried out by leveling machine.
Abovementioned steps S30 includes：The automatically controlled interface of flexible hand-writing liquid crystal screen is external.The embodiment of the present invention is by flexible hand
It is external to write the automatically controlled interface of liquid crystal display, can be achieved, using flexible hand-writing liquid crystal screen repacking traditional blackboard, to comprise the following steps that：
Remove traditional blackboard frame；
Clear up blackboard surface；
In blackboard surface spraying glue；
Flexible hand-writing liquid crystal screen is covered in blackboard surface；
Connect automatically controlled interface and battery；
Installation switch.
The present invention can be achieved the transformation of various sizes traditional blackboard, solve the hand-written dress of current liquid crystal by above-mentioned technique
The application limitation put.
When failure occurs showing in some region of flexible hand-writing liquid crystal screen, flexible hand-writing liquid crystal screen can be integrally replaced,
The fault zone can also be scratched to excision, then dock conductive layer and liquid crystal layer, it is easy to maintenance quick, reduce flexibility
The use cost of hand-writing liquid crystal screen.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every in the present invention
Inventive concept under, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in the scope of patent protection of the present invention related technical field.
Claims (20)
1. a kind of liquid crystal blackboard, it is characterised in that including flexible hand-writing liquid crystal screen and for installing the flexible hand-writing liquid crystal screen
Frame, the flexible hand-writing liquid crystal screen includes the first matrix and the second matrix that are oppositely arranged, first matrix and second
The side of matrix phase pair is provided with the first conductive layer, and relative first conductive layer is provided with the second conductive layer, institute on second matrix
State and cholesteric liquid crystal phase, prepolymer high polymer material and chiral dopant are filled between the first conductive layer and the second conductive layer
Mixture, first matrix, the second matrix, the first conductive layer, the second conductive layer are transparent material, first matrix
Or second matrix with provided with the relative opposite side in conductive layer side be in black setting, the material of first matrix and the second matrix
PET film, the cholesteric liquid crystal phase is with the first stable state that black or handwriting pad background color are shown because of scattering and instead
Penetrate the second stable state of writing color；When the cholesteric liquid crystal phase is in the second stable state, the cholesteric liquid crystal phase is incident to
Reflective condition is in color visible and shows writing.
2. liquid crystal blackboard as claimed in claim 1, it is characterised in that the cholesteric liquid crystal layer also includes chiral dopant, should
Chiral dopant accounts for 5%~40% in the cholesteric liquid crystal layer.
3. liquid crystal blackboard as claimed in claim 1, it is characterised in that the cholesteric liquid crystal phase reflection visible ray of the mixture
Temperature is less than 45 degrees Celsius.
4. liquid crystal blackboard as claimed in claim 2, it is characterised in that the writing front is seen as yellow, and side is seen as green；
It is from the side blueness or the writing front is seen as green.
5. liquid crystal blackboard as claimed in claim 1, it is characterised in that the fast black base bottom is provided with radio receiver and control
Device processed；The radio receiver electrically connects with the input of the controller, the output end of the controller and the flexibility
Hand-writing liquid crystal screen electrically connects, and the control instruction that the controller receives according to the radio receiver controls the flexible hand
Write the "on" position of liquid crystal display.
6. liquid crystal blackboard as claimed in claim 5, it is characterised in that the radio receiver includes WiFi circuitry, infrared
Receiving circuit, Bluetooth circuit or NFC circuit.
7. the liquid crystal blackboard as any one of claim 1 to 6, it is characterised in that the monoblock of liquid crystal blackboard one one
Shaping, width dimensions are 2 meters to 6 meters, and are provided with writing erasing module.
A kind of 8. blackboard brush, it is characterised in that supported the use with the liquid crystal blackboard any one of claim 1 to 7, it is described
Blackboard brush is used to wipe the writing on liquid crystal blackboard, and the blackboard brush includes blackboard brush body, for adding to body surface
The heating module and the power module for being powered to heating module of heat.
9. blackboard brush as claimed in claim 8, it is characterised in that the heating module includes heater strip and is connected with heater strip
Temperature control circuit；The blackboard brush also includes the charging module being connected with power module, and the charging module includes being arranged on institute
State the charging inlet of blackboard brush body, and charging inlet adaptation, the cradle for being charged for power module.
10. blackboard brush as claimed in claim 8, it is characterised in that the heating module of the blackboard brush includes carbon fiber heating
Silk；The blackboard brush includes the leak-proof device for being arranged on carbon fiber exothermic wire periphery.
11. blackboard brush as claimed in claim 8, it is characterised in that the blackboard brush is provided with the voltage being connected with power module
Generation circuit and the electrode being connected with voltage generation circuit.
12. blackboard brush as claimed in claim 8, it is characterised in that the heating module is used for the body surface temperature
It is heated to 40 to 75 degrees Celsius.
13. a kind of classroom blackboard system, it is characterised in that including liquid crystal blackboard and blackboard brush, the blackboard brush is that right such as will
The blackboard brush any one of 8 to 12 is sought, the liquid crystal blackboard is the liquid crystal blackboard any one of claim 1 to 7.
14. classroom blackboard system as claimed in claim 13, it is characterised in that the liquid crystal blackboard is two pieces, the classroom
Blackboard system also includes being used for the installing frame for installing liquid crystal blackboard, and the installing frame is provided centrally with liquid crystal display, described
Liquid crystal blackboard is slidably connected with the installation frame, and when the liquid crystal blackboard slides into the installing frame center, blocks described
Liquid crystal display.
15. classroom blackboard system as claimed in claim 13, it is characterised in that the liquid crystal blackboard is split settings, quantity
For two to six pieces, the classroom blackboard system also includes being used for the guide rail installed the frame and slided for the frame.
16. classroom blackboard system as claimed in claim 13, it is characterised in that also include being provided for strengthening writing brightness
External light source brightness regulating apparatus.
17. classroom blackboard system as claimed in claim 16, it is characterised in that the brightness regulating apparatus is to be arranged on frame
The LED on periphery, or the brightness regulating apparatus are the shot-light that light path is directed at liquid crystal blackboard.
18. a kind of method of liquid crystal blackboard any one of manufacturing claims 1 to 7, it is characterised in that including following step
Suddenly：
By two layers coiled, surface has in the PET base material of nesa coating and deployed, and filling cholesterol phase liquid is included wherein
The mixture of brilliant, prepolymer high polymer material and the chiral dopant for controlling cholesteric liquid crystal phase pitch, is made flexibility
Hand-writing liquid crystal screen crude green body；
By the crude green body ultra-violet curing and wind, flexible hand-writing liquid crystal screen semi-finished product are made；
Cut the semi-finished product and electric-controlled plate is installed.
19. manufacture method as claimed in claim 18, it is characterised in that described by two layers coiled, there is electrically conducting transparent on surface
Deploy in the PET base material of film, and it is filling comprising cholesteric liquid crystal phase, prepolymer high polymer material and for controlling courage wherein
The mixture of the chiral dopant of sterol phase liquid crystal pitch, the step of flexible hand-writing liquid crystal screen crude green body is made, include：
Two layers of PET base material with conducting film is placed among two horizontal positioned squeeze-film rollers；
Between the mixture is vertically dropped into two PET base materials, the pressure between two rubber rolls is controlled so that thickness of liquid crystal layer is equal
It is uniform smooth.
20. manufacture method as claimed in claim 18, it is characterised in that the crude green body is dried and wound performing, is made
Also include before the step of flexible hand-writing liquid crystal screen semi-finished product：
Measure the flexible hand-writing liquid crystal screen crude green body；
The flexible hand-writing liquid crystal screen crude green body is cut, makes electrode and carried out edge sealing to ensure flexible hand-written liquid crystal
The stability of screen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016106171968 | 2016-07-28 | ||
| CN201610617196 | 2016-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106527007A CN106527007A (en) | 2017-03-22 |
| CN106527007B true CN106527007B (en) | 2017-11-24 |
Family
ID=58325821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610955951.3A Active CN106527007B (en) | 2016-07-28 | 2016-10-27 | Classroom liquid crystal blackboard system, blackboard brush, flexible hand-writing liquid crystal screen and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106527007B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557706B (en) * | 2018-12-03 | 2021-11-23 | 深圳市德安里科技有限公司 | Liquid crystal dust-free blackboard and manufacturing method thereof |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107093334A (en) * | 2017-05-23 | 2017-08-25 | 福建云脉教育科技股份有限公司 | A kind of multi-screen interactive type electronic blackboard |
| CN109116600A (en) * | 2017-06-22 | 2019-01-01 | 深圳市朗得力科技有限公司 | A kind of liquid crystal display with handwriting functions |
| CN109423299B (en) * | 2017-09-04 | 2021-04-02 | 深圳市宝立创科技有限公司 | Polymer dispersed liquid crystal material and preparation method thereof |
| CN107632437B (en) * | 2017-09-29 | 2019-02-26 | 深圳市艾尚写科技有限公司 | A kind of energy-saving liquid crystal display and liquid crystal handwriting device |
| CN107703655B (en) * | 2017-10-19 | 2021-04-30 | 深圳市唯酷光电有限公司 | Projectable liquid crystal blackboard |
| CN107844218B (en) * | 2017-11-14 | 2021-04-30 | 深圳市唯酷光电有限公司 | Liquid crystal writing pad with local erasing function, writing pen and liquid crystal blackboard |
| CN107943346A (en) * | 2017-11-24 | 2018-04-20 | 深圳市唯酷光电有限公司 | Coach of athletes handwriting pad and Coach of athletes hand writing system |
| TWI707786B (en) * | 2019-08-14 | 2020-10-21 | 大陸商深圳市視通聯合電子有限公司 | Whiteboard device |
| CN113072963A (en) * | 2021-04-01 | 2021-07-06 | 江苏集萃智能液晶科技有限公司 | Monochromatic liquid crystal composition, liquid crystal microcapsule, coating and preparation method thereof |
| CN113568213A (en) * | 2021-08-16 | 2021-10-29 | 河北工业大学 | Manufacturing method of polymer honeycomb mesh liquid crystal blackboard |
| CN114114769A (en) * | 2021-11-12 | 2022-03-01 | 深圳市唯酷光电有限公司 | Novel liquid crystal handwriting device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458502C (en) * | 2005-11-23 | 2009-02-04 | 财团法人工业技术研究院 | Reflection liquid crystal display assembly |
| TWI410477B (en) * | 2010-10-29 | 2013-10-01 | Ind Tech Res Inst | Liquid crystal composition and liquid crystal display employing the same |
| US9651813B2 (en) * | 2011-09-16 | 2017-05-16 | Kent Displays Inc. | Liquid crystal paper |
| CN103995398A (en) * | 2014-05-29 | 2014-08-20 | 友达光电股份有限公司 | Cholesterol liquid crystal panel and manufacturing method thereof |
| CN104062797B (en) * | 2014-07-14 | 2017-06-16 | 深圳市唯酷光电有限公司 | Liquid crystal handwriting device |
-
2016
- 2016-10-27 CN CN201610955951.3A patent/CN106527007B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557706B (en) * | 2018-12-03 | 2021-11-23 | 深圳市德安里科技有限公司 | Liquid crystal dust-free blackboard and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106527007A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106527007B (en) | Classroom liquid crystal blackboard system, blackboard brush, flexible hand-writing liquid crystal screen and its manufacture method | |
| CN106168724B (en) | Classroom blackboard system, liquid crystal blackboard, blackboard brush, without electric handwriting screen and manufacture method | |
| US11846838B2 (en) | Electrophoretic device having a transparent light state | |
| CN107844218B (en) | Liquid crystal writing pad with local erasing function, writing pen and liquid crystal blackboard | |
| JP6323154B2 (en) | ELECTROCHROMIC DISPLAY ELEMENT AND METHOD FOR MANUFACTURING THE SAME, DISPLAY DEVICE, INFORMATION DEVICE, AND ELECTROCHROMIC Dimmer | |
| EP3325520B1 (en) | Polymer formulations for use with electro-optic media | |
| CN106200186B (en) | Liquid crystal handwriting device and manufacturing method thereof | |
| TW530185B (en) | Electrochromic assembly based on poly (3,4-ethylenedioxythiophene) derivatives in the electrochromic layer and the ion-storage layer | |
| KR101612228B1 (en) | Film variable of light transmissivity and film assembly | |
| CN107924650A (en) | Display for Application in Building | |
| EP2680068A1 (en) | Electrophoresis device and display | |
| KR20120092247A (en) | Smart blinds | |
| US20070097478A1 (en) | Charge responsive optical material | |
| TW200912717A (en) | Multiple color writing tablet | |
| JP2002541515A (en) | Electro-optic glazing structure with scattering and transmission modes of operation | |
| TW201708902A (en) | Device for the regulation of light transmission | |
| CN105759469A (en) | Multifunctional smart glass and manufacturing method thereof | |
| JP6517338B2 (en) | Dimming system | |
| CN106125358A (en) | A kind of trans dimming glass based on electroresponse and preparation method thereof | |
| CN207965423U (en) | A kind of peep-proof film and peep-proof display screen and the equipment for preparing peep-proof film | |
| CN206057726U (en) | Intelligent handwriting board | |
| CN104880843A (en) | Intelligent glass based on electrical-response liquid crystal materials and light adjusting method thereof | |
| CN108710228A (en) | Write film layer structure and its manufactured projection writing device | |
| CN107703655B (en) | Projectable liquid crystal blackboard | |
| CN108267886A (en) | Liquid crystal light modulation film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |