CN208092390U - A kind of liquid crystal board - Google Patents
A kind of liquid crystal board Download PDFInfo
- Publication number
- CN208092390U CN208092390U CN201820678608.3U CN201820678608U CN208092390U CN 208092390 U CN208092390 U CN 208092390U CN 201820678608 U CN201820678608 U CN 201820678608U CN 208092390 U CN208092390 U CN 208092390U
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- Prior art keywords
- liquid crystal
- crystal board
- signal
- sensor
- written trace
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Abstract
The utility model embodiment discloses a kind of liquid crystal board, including：Liquid crystal layer between first electrode layer, the second electrode lay and the first electrode layer and the second electrode lay；It is provided at least one sensor, signal projector and controller on the liquid crystal board, the controller is connect with the sensor and the signal projector, the sensor is used to written trace being converted to written trace signal, and exports written trace signal to the controller；The signal projector is used to written trace signal and the written trace signal being wiped free of being sent to external equipment.The technical solution that the utility model embodiment provides can solve the problems, such as available liquid crystal board can not carry out written trace and part is wiped free of written trace record and storage.
Description
Technical field
The utility model embodiment is related to technical field of liquid crystal display more particularly to a kind of liquid crystal board.
Background technology
Liquid crystal board is widely used as an office and study ancillary equipment, facilitates the life of people
It is living.For example, when carrying out minutes, it may be unnecessary to be recorded using paper document, only be write in liquid crystal by writing pencil
It is recorded on plate, avoids paper document and preserve inconvenient problem.Alternatively, when working out a draft, existed using writing pencil
It calculates on liquid crystal board, avoids the waste of paper.
And existing liquid crystal board can only play the function of display written trace, not any miscellaneous function is given
The use of user brings inconvenience, for example, cannot be satisfied record and storage demand of the user to written trace, cannot be satisfied user
To the selective erase demand etc. of written trace.
Utility model content
The utility model provides a kind of liquid crystal board, and written trace drawn game can not be carried out to solve available liquid crystal board
Portion is wiped free of the problem of record and storage of written trace.
The utility model embodiment provides a kind of liquid crystal board, including：First electrode layer, the second electrode lay and institute
State the liquid crystal layer between first electrode layer and the second electrode lay；
Be provided at least one sensor, signal projector and controller on the liquid crystal board, the controller with
The sensor and signal projector connection, the sensor are used to written trace being converted to written trace signal,
And written trace signal is exported to the controller；
The signal projector is used to written trace signal and the written trace signal being wiped free of being sent to external equipment.
Optionally, at least one sensor is set to side of the first electrode layer far from the liquid crystal layer, and/
Or at least one sensor is set to side of the second electrode lay far from the liquid crystal layer.
Optionally, the number of the sensor is multiple, and multiple sensors are arranged in array.
Optionally, the liquid crystal board includes power receiving coil, and the power receiving coil is connect with the first electrode layer, institute
Power receiving coil is stated for being acted on the power transmission coil on external equipment, generates alternating current；The liquid crystal board further includes second
Power supply circuit, second power supply circuit are electrically connected with the second electrode lay, for exporting second voltage to second electricity
Pole layer.
Optionally, second power supply circuit is also electrically connected with the first electrode layer, for exporting tertiary voltage to institute
State first electrode layer.
Optionally, the outside is set as writing pencil, and signal receiver is provided on the writing pencil, and the signal receives
Device is communicated to connect with the signal projector.
Optionally, side of the first electrode layer far from the liquid crystal layer is provided with transparent protective film.
Optionally, side of the second electrode lay far from the liquid crystal layer is provided with black protective film.
Optionally, the liquid crystal layer is cholesteric crystal layer.
Optionally, the sensor is voltage sensitive sensor.
The liquid crystal board that the utility model embodiment provides, including first electrode layer, the second electrode lay and the first electricity
Liquid crystal layer between pole layer and the second electrode lay.Liquid crystal board further includes at least one sensor, signal projector and control
Device, sensor are used to obtain the written trace of writing pencil writing end, and written trace is converted to written trace signal, sensor
Above-mentioned written trace signal is sent to controller, written trace signal is sent to signal projector, signal transmitting by controller
Written trace signal is sent to external equipment and stored by device, is convenient for the inquiry and review of user.When user wrongly writes in part
To hold, when written trace being carried out selective erase by writing pencil, sensor can equally obtain the written trace of writing pencil erasing,
And the written trace signal being wiped free of is sent to by host computer by signal projector, to be carried out to the written trace signal of storage
Adjustment.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for liquid crystal board that the utility model embodiment provides；
Fig. 2 is the liquid crystal board internal circuit configuration schematic diagram that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram of liquid crystal board and writing pencil that the utility model embodiment provides；
Fig. 4 is a kind of vertical view for liquid crystal board that the utility model embodiment provides；
Fig. 5 is the structural schematic diagram of another liquid crystal board and writing pencil that the utility model embodiment provides.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, it illustrates only for ease of description, in attached drawing and the relevant part of the utility model rather than entire infrastructure.
The utility model embodiment provides a kind of liquid crystal board, is that the utility model is implemented with reference to figure 1 and Fig. 2, Fig. 1
A kind of structural schematic diagram for liquid crystal board that example provides, Fig. 2 are inside the liquid crystal board that the utility model embodiment provides
Electrical block diagram, the liquid crystal board include：First electrode layer 23, the second electrode lay 24 and first electrode layer 23 and
Liquid crystal layer 25 between two electrode layers 24；
With reference to figure 2, it is provided at least one sensor 21, signal projector 29 and controller 20 on liquid crystal board 2, controls
Device 20 processed is connect with sensor 21 and signal projector 29, and at least one sensor 21 is used to written trace being converted to book
Trace signal is write, and exports written trace signal to controller 20；
Signal projector 29 is used to written trace signal and the written trace signal being wiped free of being sent to external equipment (figure
It is not shown in 1 and Fig. 2).
Optionally, external setting can be writing pencil, and with reference to figure 3, Fig. 3 is that the liquid crystal that the utility model embodiment provides is write
The structural schematic diagram of letter stencil and writing pencil is provided with signal receiver 14, signal receiver 14 and signal projector on writing pencil 1
29 communication connections.The written trace signal of writing pencil 1 is sent to the signal receiver 14 of writing pencil 1 by signal projector 29, is made
Writing pencil 1 is obtained to store written trace signal.Signal projector 29 and signal receiver 14 all can be radio communication molds
Block.
Optionally, writing pencil 1 includes penholder 11, is respectively arranged at writing end 12 and the erasing end 13 at 11 both ends of penholder；Pen
It is provided with signal receiver 14 in bar 11, and is also provided with transmission module 15 in penholder 11, transmission module 15 and signal
Receiver 14 is electrically connected, and is used for written trace signal transmission to the host computers such as such as computer, mobile phone.
Accessory of the writing pencil 1 as liquid crystal board 2 writes out writing for passing through writing end 12 on liquid crystal board 2
Trace, liquid crystal board includes first electrode layer 23, liquid crystal layer 25 and the second electrode lay 24 successively, by controlling first electrode
Voltage value on layer 23 and the second electrode lay 24 can control the dispaly state of liquid crystal molecule in liquid crystal layer 25.For example, can lead to
It crosses first electrode layer 12 and the second electrode lay 13 controls the content of 2 display of liquid crystal board.Wherein, first electrode layer 23 and second
Electrode layer 24 is made of multiple strip shaped electric poles respectively, by controlling the voltage on each strip shaped electric poles, at one
Different states is shown on liquid crystal board 2, forms word or pattern.Similarly, because first electrode layer 23 is by multiple strips electricity
Pole is constituted, and the erasing end 13 of writing pencil 1 can realize selective erase to liquid crystal board 2.Optionally, the material at the erasing end 13
Material is flexible material, such as rubber etc..Erasing end 13 flexible can protect liquid crystal board 2, prevent liquid crystal board 2 from being damaged
It is bad.Certainly, first electrode layer 23 and the second electrode lay 24 is not given to power, by the writing end 12 of writing pencil 1 to liquid crystal board 2
It is pressed, the variation of mesomorphic state can also occur under the pressure more than threshold value for liquid crystal layer 25, to show written trace.
Sensor 21 is for being acquired writing pencil 1 for the written trace on liquid crystal board 2.Optionally, at least
One sensor 21 is set to side and/or at least one sensor 21 of the first electrode layer 23 far from liquid crystal layer 25 and is set to
Side of the second electrode lay 24 far from liquid crystal layer 25.It, can will at least because liquid crystal board 2 is relatively thin display structure
One sensor 21 is set to side of the first electrode layer 23 far from liquid crystal layer 25, i.e. the write-in side of liquid crystal board 2；It can also
At least one sensor 21 is set to side of the second electrode lay 24 far from liquid crystal layer 25；Alternatively, more accurate in order to obtain
Written trace, it is equal in side and the second electrode lay 24 side far from liquid crystal layer 25 of the first electrode layer 23 far from liquid crystal layer 25
Sensor 21 is set.As shown in Figure 1, Fig. 1 is by taking sensor 21 is set to side of the second electrode lay 24 far from liquid crystal layer 25 as an example.
Optionally, with reference to figure 4, Fig. 4 is a kind of vertical view for liquid crystal board that the utility model embodiment provides, sensing
The number of device 21 is multiple, and multiple sensors 21 are arranged in array.It is recorded by the composite measurement result of multiple sensors 21
The written trace of the writing end 12 of writing pencil 1, enhances the accuracy of the written trace of acquisition.Optionally, sensor 21 is pressure-sensitive
Sensor, according to 1 writing end 12 of writing pencil to the position of the pressure detecting writing end 12 of liquid crystal board 2, multiple pressure-responsives
Device can realize the positioning of the writing end 12 of writing pencil 1 on two dimensional surface.By the continuous record to 12 position of writing end, obtain
Written trace.
The liquid crystal board that the utility model embodiment provides, including first electrode layer, the second electrode lay and the first electricity
Liquid crystal layer between pole layer and the second electrode lay.Liquid crystal board further includes at least one sensor, signal projector and control
Device, sensor are used to obtain the written trace of writing pencil writing end, and written trace is converted to written trace signal, sensor
Above-mentioned written trace signal is sent to controller, written trace signal is sent to signal projector, signal transmitting by controller
Written trace signal is sent to external equipment and stored by device, is convenient for the inquiry and review of user.When user wrongly writes in part
To hold, when written trace being carried out selective erase by writing pencil, sensor can equally obtain the written trace of writing pencil erasing,
And the written trace being wiped free of is sent to by host computer by signal projector, it is adjusted with the written trace to storage.
On the basis of the above embodiments, with reference to figure 5, Fig. 5 is that another liquid crystal that the utility model embodiment provides is write
The structural schematic diagram of letter stencil and writing pencil, liquid crystal board 2 include power receiving coil 22, and power receiving coil 22 connects with first electrode layer 23
It connects, power receiving coil 22 is used to act on the power transmission coil 131 on external equipment, generates alternating current；Liquid crystal board 2 further includes
Two power supply circuits (are not shown) in Fig. 4, and the second power supply circuit is electrically connected with the second electrode lay 24, for exporting second voltage to
Two electrode layers 24.
Power transmission coil 131 and the first power supply circuit 17 are provided in the erasing end 13 of writing pencil 1, the first power supply circuit 17 is
Power transmission coil 131 provides electric energy, to interact with power receiving coil 22, generates alternating current.First power supply circuit 17 can be
The power supply of writing pencil 1.
Side of the second electrode lay 24 far from liquid crystal layer 25 is provided with power receiving coil 22, and the power receiving coil 22 is at least set
Set one, it is preferred that multiple power receiving coils 22 are set, multiple power receiving coils 22 are uniformly distributed on entire liquid crystal board 2,
And strip shaped electric poles electrical connection corresponding in first electrode layer 23, when the part at the erasing end 13 and liquid crystal board 2 of writing pencil 1
When position A is contacted, the corresponding power receiving coils 22 of local location A generate alternating current.
Power receiving coil 22 is electrically connected with the strip shaped electric poles in first electrode layer 23 at local location A, can specifically pass through rectification
Circuit is electrically connected with strip shaped electric poles, and the alternating current in power receiving coil 22 is carried out rectification processing by rectified current, generates first voltage,
The strip shaped electric poles being delivered at the local location A of first electrode layer 23, the second power supply circuit 28 can be that the second electrode lay 24 carries
For second voltage, between above-mentioned first voltage and second voltage, there are voltage differences, the voltage difference can make liquid crystal layer 25
Mesomorphic state changes, and realizes the erasing of the written trace of localized region A.Similarly, the second power supply circuit 28 can be liquid
The power supply of brilliant board 2.
Optionally, with reference to figure 5, the second power supply circuit 28 can also be electrically connected with first electrode layer 23, for exporting third
Voltage is to first electrode layer 23.When writing full written trace on liquid crystal board 2, when needing to carry out whole wipe, the second power supply electricity
Road 28 passes to tertiary voltage to first electrode layer 23, and there are voltages between the second voltage on tertiary voltage and the second electrode lay 24
Difference, the voltage difference can on the whole wipe liquid crystal board 2.
Optionally, with reference to figure 5, it is provided with switch 16 on penholder 11, switch 16 is connected to the first power supply circuit 17 and power transmission
Between coil 131, electric energy is exported to power transmission coil 131 for controlling the first power supply circuit 17.When user needs to pass through power transmission line
When circle 131 wipes the written trace of the part on liquid crystal board 2, then lower switch 16 is pressed, powered for power transmission coil 131, when
When erasure completion, trip switch 16, then the first power supply circuit 17 is no longer that power transmission coil 131 provides first voltage, can continue to lead to
It crosses writing pencil 1 to be recorded and calculated, and power consumption can be saved.
Optionally, with reference to figure 5, be provided in penholder 11 and delete content record module 18, respectively with signal receiver 14 and
Transmission module 15 is electrically connected, for the written trace signal for the written trace being wiped free of to be sent to host computer.
Because writing pencil 1 has the function of storage, then before the written trace of mistake is wiped at erasing end 13, hand
It writes pen 1 often the written trace signal of mistake has been obtained and stored, the deletion content record being arranged in penholder 11
Module 18 is electrically connected with signal receiver 14, when signal receiver 14 receives the written trace signal being wiped free of, obtains quilt
Written trace signal is simultaneously sent to host computer by the written trace signal of erasing by transmission module 15 so that host computer is according to quilt
The written trace signal of erasing is modified the written trace signal of preservation, and the written trace signal of mistake is deleted.
Optionally, writing pencil 1 can also include：The memory module 19 being set in penholder 11, is electrically connected with transmission module 15
It connects, the written trace signal for storing written trace signal He being wiped free of.Writing pencil 1 can also be used as storage device in itself,
Written trace signal is stored, when memory capacity has expired, the written trace signal of storage is transmitted to host computer again.
Optionally, writing pencil 1 can also include：The communication antenna 10 being set on penholder 11, is electrically connected with transmission module 15
It connects, for being communicated to connect with host computer, written trace signal is switched to wireless signal, is sent to host computer by communication antenna 10.
Optionally, writing pencil 1 can also include：The usb 1 11 and USB modules 112, USB being set on penholder 11
Module 112 is electrically connected with usb 1 11 and signal receiver 14.When by writing pencil 1 pass through usb 1 11 be inserted into host computer
When, USB module 112 obtains written trace signal and the written trace signal clashed to host computer from signal receiver 14.
Optionally, usb 1 11 is set in penholder 11, by retractable structure (being not shown in Fig. 5) by USB interface
111 are pushed out to 11 outside of penholder.Writing pencil 1 can be used as a USB device, can be accessed in host computer by usb 1 11, and
And by retractable structure, usb 1 11 can be released into 11 outside of penholder, do not made when writing pencil 1 is inserted into host computer
When with usb 1 11, USB interfaces 111 are retracted in penholder 11, do not influence the writing and use of writing pencil 1, telescoping mechanism
The design of the similar structures on existing foldable flash disk may be used.
With reference to figure 1, side of the first electrode layer 23 far from liquid crystal layer 25 is provided with transparent protective film 26, the second electrode lay 24
Side far from liquid crystal layer 25 is provided with black protective film 27.
It is set to the transparent protective film 26 of side of the first electrode layer 23 far from liquid crystal layer 25, first electrode layer 23 is played
Protective effect, the pressure for accepting 1 writing end of writing pencil so that liquid crystal layer 25 is write according to the pressure of the writing end 12
The display of trace.Optionally, transparent protective film is glass or plastic film.The black for being set to 24 lower section of the second electrode lay is protected
Cuticula 27, first electrode layer 23 and the second electrode lay 24 are all transparent electrode layer, are provided with below the second electrode lay 24 black
Color protective film 15, black protective film 24 can be the glass or plastic film for being coated with ink layer, for absorbing some light.
Optionally, liquid crystal layer 25 can be that cholesteric crystal layer can due to the spiral layers structure inside cholesteric crystal layer
To reflect the light of wavelength in a certain range, the light being not reflected can be absorbed by black protective film 27, and the visible center of people is anti-
The very strong reflected light of certain color of the long attachment of ejected wave, referred to as illuminated state, when cholesteric crystal layer is in shape completely at random
When state, cholesteric crystal layer will be very thin, cannot form sufficiently strong selection reflection at this time, most of light is by black protective film 27
It absorbs and black is presented, the state of cholesteric crystal layer herein is referred to as dark-state, and above-mentioned illuminated state and dark-state are in the absence of an electric field
It can be maintained for a long time so that cholesteric crystal layer in the absence of an electric field, passes through pressure change cholesteric crystal layer
Spiral layers structure state, show writing pencil writing end pressing trace.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted, be combined with each other and is substituted without departing from the scope of protection of the utility model.Therefore, although passing through
Above example is described in further detail the utility model, but the utility model is not limited only to the above implementation
Example can also include other more equivalent embodiments in the case where not departing from the utility model design, and the utility model
Range is determined by scope of the appended claims.
Claims (10)
1. a kind of liquid crystal board, which is characterized in that including：First electrode layer, the second electrode lay and the first electrode layer
Liquid crystal layer between the second electrode lay；
Be provided at least one sensor, signal projector and controller on the liquid crystal board, the controller with it is described
Sensor and signal projector connection, the sensor are used to written trace being converted to written trace signal, and defeated
Go out written trace signal to the controller；
The signal projector is used to written trace signal and the written trace signal being wiped free of being sent to external equipment.
2. liquid crystal board according to claim 1, it is characterised in that：
At least one sensor be set to side of the first electrode layer far from the liquid crystal layer and/or it is described at least
One sensor is set to side of the second electrode lay far from the liquid crystal layer.
3. liquid crystal board according to claim 2, it is characterised in that：The number of the sensor be it is multiple,
Multiple sensors are arranged in array.
4. liquid crystal board according to claim 1, it is characterised in that：
The liquid crystal board includes power receiving coil, and the power receiving coil is connect with the first electrode layer, the power receiving coil
For being acted on the power transmission coil on external equipment, alternating current is generated；
The liquid crystal board further includes the second power supply circuit, and second power supply circuit is electrically connected with the second electrode lay,
For exporting second voltage to the second electrode lay.
5. liquid crystal board according to claim 4, it is characterised in that：
Second power supply circuit is also electrically connected with the first electrode layer, for exporting tertiary voltage to the first electrode
Layer.
6. liquid crystal board according to claim 1, which is characterized in that the outside is set as writing pencil, described hand-written
Signal receiver is provided on pen, the signal receiver is communicated to connect with the signal projector.
7. liquid crystal board according to claim 1, it is characterised in that：
Side of the first electrode layer far from the liquid crystal layer is provided with transparent protective film.
8. liquid crystal board according to claim 1, it is characterised in that：
Side of the second electrode lay far from the liquid crystal layer is provided with black protective film.
9. liquid crystal board according to claim 1, it is characterised in that：
The liquid crystal layer is cholesteric crystal layer.
10. liquid crystal board according to claim 1, it is characterised in that：
The sensor is voltage sensitive sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820678608.3U CN208092390U (en) | 2018-05-08 | 2018-05-08 | A kind of liquid crystal board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820678608.3U CN208092390U (en) | 2018-05-08 | 2018-05-08 | A kind of liquid crystal board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208092390U true CN208092390U (en) | 2018-11-13 |
Family
ID=64052241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820678608.3U Expired - Fee Related CN208092390U (en) | 2018-05-08 | 2018-05-08 | A kind of liquid crystal board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208092390U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581719A (en) * | 2019-01-30 | 2019-04-05 | 深圳市恒开源电子有限公司 | With via design can selective erase liquid crystal diaphragm and liquid crystal writing device |
| CN109683372A (en) * | 2019-01-30 | 2019-04-26 | 深圳市恒开源电子有限公司 | A kind of liquid crystal diaphragm and liquid crystal writing device with selective erase function |
| CN110134292A (en) * | 2019-05-24 | 2019-08-16 | 京东方科技集团股份有限公司 | Hand input device and preparation method thereof, handwriting input device |
| CN111399674A (en) * | 2020-03-31 | 2020-07-10 | 京东方科技集团股份有限公司 | Electronic device and electronic system |
| CN111781754A (en) * | 2019-04-03 | 2020-10-16 | 江苏集萃智能液晶科技有限公司 | Liquid crystal handwriting board capable of being partially erased |
| CN113433748A (en) * | 2021-07-07 | 2021-09-24 | 珠海市唯酷科技有限公司 | Liquid crystal handwriting film with local erasing function and electronic writing equipment |
-
2018
- 2018-05-08 CN CN201820678608.3U patent/CN208092390U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581719A (en) * | 2019-01-30 | 2019-04-05 | 深圳市恒开源电子有限公司 | With via design can selective erase liquid crystal diaphragm and liquid crystal writing device |
| CN109683372A (en) * | 2019-01-30 | 2019-04-26 | 深圳市恒开源电子有限公司 | A kind of liquid crystal diaphragm and liquid crystal writing device with selective erase function |
| CN111781754A (en) * | 2019-04-03 | 2020-10-16 | 江苏集萃智能液晶科技有限公司 | Liquid crystal handwriting board capable of being partially erased |
| CN111781754B (en) * | 2019-04-03 | 2021-11-09 | 江苏集萃智能液晶科技有限公司 | Liquid crystal handwriting board capable of being partially erased |
| CN110134292A (en) * | 2019-05-24 | 2019-08-16 | 京东方科技集团股份有限公司 | Hand input device and preparation method thereof, handwriting input device |
| CN110134292B (en) * | 2019-05-24 | 2022-12-16 | 京东方科技集团股份有限公司 | Handwriting input device, preparation method thereof and handwriting input equipment |
| CN111399674A (en) * | 2020-03-31 | 2020-07-10 | 京东方科技集团股份有限公司 | Electronic device and electronic system |
| CN113433748A (en) * | 2021-07-07 | 2021-09-24 | 珠海市唯酷科技有限公司 | Liquid crystal handwriting film with local erasing function and electronic writing equipment |
| CN113433748B (en) * | 2021-07-07 | 2023-04-11 | 珠海市唯酷科技有限公司 | Liquid crystal handwriting film with local erasing function and electronic writing equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |