CN107066153A - A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved - Google Patents
A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved Download PDFInfo
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- CN107066153A CN107066153A CN201710266065.4A CN201710266065A CN107066153A CN 107066153 A CN107066153 A CN 107066153A CN 201710266065 A CN201710266065 A CN 201710266065A CN 107066153 A CN107066153 A CN 107066153A
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- China
- Prior art keywords
- liquid crystal
- key
- main control
- erasing
- selective erase
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- B43L1/04—Blackboards
- B43L1/08—Blackboards flexible
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
Abstract
The present invention provide it is a kind of the intelligent flexible liquid crystal blackboard of key erasing and selective erase can be achieved, including housing, infrared type touch-screen and can write liquid crystal display with the flexibility of infrared type touch-screen form fit；Infrared type touch-screen includes frame, the PCB control panels being arranged in frame and the main control panel for being arranged at frame bottom；Be provided with main control panel surface network state lamp, relay indicating light, on electric indicator lamp, battery electric quantity lamp and preserve key, erasing key and power key；Also include setting and the main control chip in main control panel, power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, wireless transmission unit, 74HC595 chips and bridge drive circuit unit；The design can reach good using effect, and structure and principle are relatively easy, and operation is simple, easy to get started, and energy consumption is relatively low, and suitable large-scale popularization is used.
Description
[technical field]
The present invention relates to flexible liquid crystal blackboard product technical field, more particularly to a kind of using effect are good, intelligence degree
The high intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved.
[background technology]
In recent years, with the continuous improvement of people's living standards, the product of all trades and professions all more focuses on actual use
In effect and the degree protected to health of people, traditional teaching environment, typically all write using chalk on blackboard, so
The mode wiped afterwards, can produce a large amount of powder in actual use, if user is used for a long time, can be made to healthy
Into very big influence, based on this, occur in that on the market a kind of can replace the hand-written dress of liquid crystal of traditional blackboard write mode at present
Product is put, the liquid crystal handwriting device product and traditional blackboard have the difference in terms of larger structure and principle, can band
Carry out good using effect, and it is powerful, it is easy to use, it is the developing direction of following blackboard Related product.
However, current liquid crystal blackboard still has more weak point, such as structure design is not reasonable, automates journey
Degree is not high enough, is unfavorable for storing, intelligence degree is not high, it is impossible to flexible to realize key erasing or local quick erasing etc.
Deng govern the larger range of popularization of product and use.
Based on above mentioned problem, those skilled in the art has carried out substantial amounts of research and development and experiment, the specific structure of slave unit
It is improved and improves with being set out in terms of principle, and achieves preferable achievement.
[content of the invention]
To overcome the problems of prior art, the present invention provides that a kind of using effect is good, intelligence degree it is high can
Realize the intelligent flexible liquid crystal blackboard of key erasing and selective erase.
The scheme that the present invention solves technical problem is to provide a kind of intelligent flexible that key erasing and selective erase can be achieved
Liquid crystal blackboard, including housing, infrared type touch-screen and can write liquid crystal display with the flexibility of infrared type touch-screen form fit；Institute
State flexibility and can write liquid crystal display insertion and be arranged on the inside of infrared type touch-screen；The infrared type touch-screen includes frame, is arranged at
PCB control panels in frame and the main control panel for being arranged at frame bottom；The main control panel surface is provided with net
Network status lamp, relay indicating light, upper electric indicator lamp, battery electric quantity lamp and preservation key, erasing key and power key；Also include setting
With the main control chip in main control panel, power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, wireless transmission
Unit, 74HC595 chips and bridge drive circuit unit；The PCB control panels, booster circuit unit, mu balanced circuit unit,
Memory, SD card, wireless transmission unit, 74HC595 chips and bridge drive circuit unit and main control chip are electrically connected with；And
The main control chip is STM32ZET6 control chips；The flexibility, which can write liquid crystal display, includes liquid crystal film and and liquid crystal film
At least two blocks enhancing plates fit together.
Preferably, cell voltage ADC detections are also electrically connected between power supply and the STM32ZET6 control chip single
Member.
Preferably, the frame of the infrared type touch-screen includes upper side frame, left frame, the left frame that clamp-close type is connected
And lower frame, infrared touch panel pcb board is both provided with each upper side frame, left frame, left frame and lower frame.
Preferably, the flexibility can write several phases that liquid crystal display also includes being used to support the liquid crystal film and enhancing plate
The liner plate connected；The middle part of liner plate is set to plane, and the two ends of liner plate are raised；The liner plate edge offers use
The neck of liquid crystal display can be write in connecting and fixing the flexibility.
Preferably, the infrared type touch-screen and flexibility can be write between liquid crystal display top and housing by flexible drawing
Film is connected, and the housing is in cylinder type, and the spool that is connected with flexible drawing film is provided with and for driving in enclosure interior
The column motor of spool rotation；Under the driving effect of column motor, infrared type touch-screen and flexibility can write liquid crystal display and be rolled up
Song is accommodated in inside cylindrical housings.
Preferably, several USB interfaces are further opened with the main control panel.
Preferably, the thin axle that film is drawn for fixing flexible is provided with the spool, and flexible drawing film is relative to volume
The other end of axle and the two sides of liquid crystal film fit together.
Preferably, the wireless transmission unit is ESP8266Wifi modular units.
Preferably, the cylindrical housings also include being arranged at the left cover of cylindrical housings left end and positioned at circular cylindrical shell
The right cover of body right-hand member；Also include the support bar being connected with enclosure interior column motor；The support bar and column motor are all set
In the middle part of spool.
Preferably, the thickness of the enhancing plate is 0.35mm；Column motor one end is connected by bolt with left cover.
Compared with prior art, the intelligent flexible liquid crystal blackboard of a kind of achievable key erasing of the present invention and selective erase leads to
Cross and main control chip be set in main control panel, it is power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, wireless
Transmitting element, 74HC595 chips and bridge drive circuit unit, and network state lamp, work are set on main control panel surface
Make indicator lamp, upper electric indicator lamp, battery electric quantity lamp and preserve key, erasing key and power key, in actual use, press electricity
Source key start, program is initialized, can be write and be write on liquid crystal display working region in flexibility with pen in power supply under normal circumstances
Or picture shape, infrared type touch-screen detects the track of pen writing, track is converted into coordinate data and is transferred to main control chip, main
Control chip is received after coordinate data, and a series of processing are carried out to coordinate data, on the one hand sends out data by transmitting wirelessly unit
High in the clouds is given, for user's remote watching, that is, remote living broadcast is carried out, on the other hand the data after processing are stored in memory,
Press preservation key the data preserved in memory are changed into PDF format picture file to be stored in SD card, while passing through nothing
Line transmitting element uploads high in the clouds storage, when erasing key is pressed, starts booster circuit, main control chip sends erasing signal data,
Bridge drive circuit unit is added to by 74HC595 chips, bridge drive circuit unit action erasing flexibility can write liquid crystal display,
Realize overall erasing；When needing that flexibility can be write liquid crystal display progress selective erase, with the thick one end of pen in selective erase area
A specific action is done in domain, and infrared type touch-screen detects this signal and issues main control chip, and main control chip passes through data processing, starts and rises
Volt circuit, sends selective erase signal data, and bridge drive circuit unit, drive circuit action are added to by 74HC595 chips
Local compliance liquid crystal display is wiped, selective erase is realized, the design can reach good using effect, and structure and principle phase
To simple, simple, easy to get started is operated, and energy consumption is relatively low, suitable large-scale popularization is used.
[brief description of the drawings]
Fig. 1 is a kind of stereoscopic-state knot for the intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved of the present invention
Structure schematic diagram.
Fig. 2 is main control panel in a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved of the present invention
Display structural representation.
Fig. 3 is that a kind of operation principle for the intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved of the present invention is shown
It is intended to.
[embodiment]
To make the purpose of the present invention, technical scheme and advantage are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting this invention.
Refer to Fig. 1 to Fig. 3, a kind of intelligent flexible liquid crystal blackboard 1 that key erasing and selective erase can be achieved of the present invention
Liquid crystal display 15 can be write including housing 11, infrared type touch-screen 13 and with the flexibility of the form fit of infrared type touch-screen 13；Institute
State flexibility and can write the insertion of liquid crystal display 15 and be arranged at the inner side of infrared type touch-screen 13；The infrared type touch-screen 13 include frame,
The PCB control panels that are arranged in frame and the main control panel for being arranged at frame bottom；Set on the main control panel surface
It is equipped with network state lamp, relay indicating light, upper electric indicator lamp, battery electric quantity lamp and preserves key, erasing key and power key；Also wrap
Include and set and the main control chip in main control panel, power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, nothing
Line transmitting element, 74HC595 chips and bridge drive circuit unit；The PCB control panels, booster circuit unit, voltage stabilizing electricity
Road unit, memory, SD card, wireless transmission unit, 74HC595 chips and bridge drive circuit unit and main control chip are electrical
Connection；And the main control chip is STM32ZET6 control chips；The flexibility can write liquid crystal display 15 including liquid crystal film and
At least two blocks enhancing plates fit together with liquid crystal film.
By in main control panel set main control chip, power supply, booster circuit unit, mu balanced circuit unit, memory,
SD card, wireless transmission unit, 74HC595 chips and bridge drive circuit unit, and network is set on main control panel surface
Status lamp, relay indicating light, upper electric indicator lamp, battery electric quantity lamp and preservation key, erasing key and power key, actual use process
In, power key start is pressed, program is initialized, and, the work of liquid crystal display 15 can be write in flexibility with pen in power supply under normal circumstances
Make to write on region or picture shape, infrared type touch-screen 13 detects the track of pen writing, track is converted into coordinate data passes
Main control chip is defeated by, main control chip is received after coordinate data, a series of processing are carried out to coordinate data, on the one hand passed through data
Wireless transmission unit is sent to high in the clouds, for user's remote watching, that is, remote living broadcast is carried out, on the other hand by the data after processing
It is stored in memory, presses preservation key and the data preserved in memory are changed into PDF format picture file be stored in SD card
In, while uploading high in the clouds storage by transmitting wirelessly unit, when erasing key is pressed, start booster circuit, main control chip is sent
Signal data is wiped, bridge drive circuit unit is added to by 74HC595 chips, the action erasing of bridge drive circuit unit is flexible
Liquid crystal display 15 can be write, overall erasing is realized；When need that flexibility can be write liquid crystal display 15 carry out selective erase when, it is thick with pen
One end does a specific action in selective erase region, and infrared type touch-screen 13 detects this signal and issues main control chip, main control chip
By data processing, start booster circuit, send selective erase signal data, bridge-type driving electricity is added to by 74HC595 chips
Road unit, drive circuit action erasing local compliance liquid crystal display, realizes selective erase, and the design can be reached well using effect
Really, and structure and principle are relatively easy, operation is simple, easy to get started, and energy consumption is relatively low, and suitable large-scale popularization is used.
Preferably, cell voltage ADC detections are also electrically connected between power supply and the STM32ZET6 control chip single
Member.
Preferably, the frame of the infrared type touch-screen 13 include clamp-close type be connected upper side frame, left frame, the right
Infrared touch panel pcb board is both provided with frame and lower frame, each upper side frame, left frame, left frame and lower frame.
Preferably, the flexibility can write liquid crystal display 15 and also include being used to support the liquid crystal film and strengthen several of plate
The liner plate 131 of interconnection；The middle part of liner plate 131 is set to plane, and the two ends of liner plate 131 are raised；The side of liner plate 131
Edge position is offered can write the neck of liquid crystal display 15 for connecting and fixing the flexibility.The bulge-structure limit at the edge of liner plate 131
The connection angle of liner plate 131 has been made, and larger angle can not be bent.Remove to limit and be combined into after liner plate 131 in raised part
Outside the degree of bending, when rolling liquid crystal display, the projection at two ends can also play a part of protecting liquid crystal display, it is not touched
Spool surface.
Preferably, the infrared type touch-screen 13 and flexibility can be write between the top of liquid crystal display 15 and housing by flexibility
Film 17 is drawn to be connected, and the housing 11 is in cylinder type, and the spool being connected with flexible drawing film 17 is internally provided with housing 11
And the column motor for driving spool to rotate；Under the driving effect of column motor, infrared type touch-screen 13 and flexibility can
Writing liquid crystal display 15, which is curled, to be accommodated in inside cylindrical housings 11.
Preferably, several USB interfaces are further opened with the main control panel.
Preferably, the thin axle that film 17 is drawn for fixing flexible is provided with the spool, and flexible drawing film 17 is relative
Fit together in the other end of spool and the two sides of liquid crystal film.Each spool is rolled liquid crystal film by flexible drawing film 17
When, liquid crystal film can drive liner plate 131 also to roll.When the rotation of spool opposite direction, i.e., when liquid crystal film is rolled out, the deadweight of liner plate 131
Can haul liquid crystal film from housing 11 it is sagging out.
Preferably, the wireless transmission unit is ESP8266Wifi modular units.
Preferably, the cylindrical housings 11 also include being arranged at the left cover of the left end of cylindrical housings 11 and positioned at cylinder
The right cover of the right-hand member of shape housing 11；Also include the support bar being connected with the inner cylindrical motor of housing 11；The support bar and column horse
Up to the middle part for being all arranged at spool.
Preferably, the thickness of the enhancing plate is 0.35mm；Column motor one end is connected by bolt with left cover.
Flexibility can be write when liquid crystal layer is planar texture P states inside liquid crystal film in liquid crystal display 15 (when having writing), when
Applied field voltage is reached after certain numerical value, and liquid crystal molecule will be changed into conical texture from planar texture, then display device
It is changed into dark-state from state of.If further increasing voltage of electric field, after certain threshold value is reached, cholesteric liquid crystal will undergo phase transition effect
Should, it is changed into vertical orientated, mutually row phase (H states) is caused as so-called field.Vertical orientated is not the stable texture of cholesteric liquid crystal,
When voltage drops to zero rapidly, liquid crystal molecule becomes planar texture P states again；When voltage is slowly reduced, liquid crystal molecule becomes coking cone
Texture FC states.P states and FC states are stable state under null field.So, scattering states during reflection state and FC states during P states are formed pair
It is exactly the operation principle that contrast bistable display is realized in reflective cholesteric liquid crystal display than state.
In practical application, the voltage for first applying on liquid crystal display and being slightly above liquid crystal threshold value can be used, is kept for a period of time, will
The liquid crystal of plane state (P states) first switchs to so-called field and causes mutually to arrange to (H states).Then voltage is reduced again and removes electric field, at this moment liquid crystal
Molecule returns to the stable state of Focal conic state (FC states).Still show dark-state.It can wipe dry completely in order to ensure the writing of writing
Only, it may proceed to apply reverse voltage on liquid crystal display, kept for a period of time remove again.In actual applications, it can be repeated twice
The step of to more than three times, to ensure the thorough of writing erasing.After repeating two to three times, the writing of writing is wiped free of.
Compared with prior art, a kind of intelligent flexible liquid crystal blackboard 1 that key erasing and selective erase can be achieved of the present invention
By setting main control chip, power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, nothing in main control panel
Line transmitting element, 74HC595 chips and bridge drive circuit unit, and set on main control panel surface network state lamp,
Relay indicating light, upper electric indicator lamp, battery electric quantity lamp and preservation key, erasing key and power key, in actual use, are pressed
Power key is started shooting, and program is initialized, can write on the working region of liquid crystal display 15 in flexibility with pen in power supply under normal circumstances
Write or picture shape, infrared type touch-screen 13 detects the track of pen writing, and track is converted into coordinate data and is transferred to master control
Chip, main control chip is received after coordinate data, and a series of processing are carried out to coordinate data, and data on the one hand are passed through into wireless transmission
Unit is sent to high in the clouds, for user's remote watching, that is, carries out remote living broadcast, is on the other hand stored in the data after processing and stores
In device, press preservation key and the data preserved in memory are changed into PDF format picture file be stored in SD card, it is simultaneously logical
Cross wireless transmission unit and upload high in the clouds storage, when erasing key is pressed, start booster circuit, main control chip sends erasing signal number
According to being added to bridge drive circuit unit by 74HC595 chips, bridge drive circuit unit action erasing flexibility can write liquid crystal
Screen 15, realizes overall erasing；When needing that flexibility can be write the progress selective erase of liquid crystal display 15, with the thick one end of pen in part
A specific action is done in erasing region, and infrared type touch-screen 13 detects this signal and issues main control chip, and main control chip is by data
Reason, starts booster circuit, sends selective erase signal data, bridge drive circuit unit is added to by 74HC595 chips, drives
Circuit operation wipes local compliance liquid crystal display, realizes selective erase, and the design can reach good using effect, and structure with
And principle is relatively easy, operation is simple, easy to get started, and energy consumption is relatively low, and suitable large-scale popularization is used.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (10)
1. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved, it is characterised in that：Including housing, infrared
Formula touch-screen and it can write liquid crystal display with the flexibility of infrared type touch-screen form fit；The flexibility can write liquid crystal display insertion
It is arranged on the inside of infrared type touch-screen；The infrared type touch-screen includes frame, the PCB control panels being arranged in frame and set
It is placed in the main control panel of frame bottom；Be provided with the main control panel surface network state lamp, relay indicating light, on electricity
Indicator lamp, battery electric quantity lamp and preservation key, erasing key and power key；Also include setting and the master control core in main control panel
Piece, power supply, booster circuit unit, mu balanced circuit unit, memory, SD card, wireless transmission unit, 74HC595 chips and bridge
Formula drive circuit unit；The PCB control panels, booster circuit unit, mu balanced circuit unit, memory, SD card, wireless transmission are single
Member, 74HC595 chips and bridge drive circuit unit and main control chip are electrically connected with；And the main control chip is
STM32ZET6 control chips；The flexibility can write liquid crystal display including liquid crystal film and be fit together at least with liquid crystal film
Two blocks of enhancing plates.
2. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 1, its feature
It is：Cell voltage ADC detection units are also electrically connected between power supply and the STM32ZET6 control chip.
3. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 1, its feature
It is：The frame of the infrared type touch-screen includes the upper side frame that clamp-close type is connected, left frame, left frame and following
Infrared touch panel pcb board is both provided with frame, each upper side frame, left frame, left frame and lower frame.
4. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 1, its feature
It is：The flexibility, which can write liquid crystal display, also to be included being used for several linings being connected with each other for supporting the liquid crystal film and enhancing plate
Plate；The middle part of liner plate is set to plane, and the two ends of liner plate are raised；The liner plate edge is offered for connecting and fixing
The flexibility can write the neck of liquid crystal display.
5. a kind of intelligence that key erasing and selective erase can be achieved as described in any one claim in Claims 1-4
Energy flexible liquid crystal blackboard, it is characterised in that：The infrared type touch-screen and flexibility can be write between liquid crystal display top and housing
It is connected by flexible drawing film, and the housing is in cylinder type, and the spool being connected with flexible drawing film is provided with enclosure interior
And the column motor for driving spool to rotate；Under the driving effect of column motor, infrared type touch-screen and flexibility can books
Write liquid crystal display and be curled and be accommodated in inside cylindrical housings.
6. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 1, its feature
It is：Several USB interfaces are further opened with the main control panel.
7. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 5, its feature
It is：The thin axle that film is drawn for fixing flexible is provided with the spool, and flexible drawing film is relative to the other end of spool
Fit together with the two sides of liquid crystal film.
8. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 1, its feature
It is：The wireless transmission unit is ESP8266Wifi modular units.
9. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 5, its feature
It is：The cylindrical housings also include being arranged at the left cover of cylindrical housings left end and the right side positioned at cylindrical housings right-hand member
Lid；Also include the support bar being connected with enclosure interior column motor；The support bar and column motor are all arranged in spool
Between position.
10. a kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved as claimed in claim 9, its feature
It is：The thickness of the enhancing plate is 0.35mm；Column motor one end is connected by bolt with left cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266065.4A CN107066153A (en) | 2017-04-21 | 2017-04-21 | A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266065.4A CN107066153A (en) | 2017-04-21 | 2017-04-21 | A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved |
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| CN107066153A true CN107066153A (en) | 2017-08-18 |
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| CN201710266065.4A Pending CN107066153A (en) | 2017-04-21 | 2017-04-21 | A kind of intelligent flexible liquid crystal blackboard that key erasing and selective erase can be achieved |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844218A (en) * | 2017-11-14 | 2018-03-27 | 深圳市唯酷光电有限公司 | Liquid crystal handwriting pad, lettering pen and liquid crystal blackboard with selective erase function |
| CN109271060A (en) * | 2018-08-29 | 2019-01-25 | 广东小天才科技有限公司 | Selective erase method, apparatus, equipment and the storage medium of bistable liquid crystal screen |
| CN109932834A (en) * | 2017-12-15 | 2019-06-25 | 江苏集萃智能液晶科技有限公司 | A kind of selective erase liquid crystal handwriting board device and forming method thereof |
| CN110888248A (en) * | 2018-09-10 | 2020-03-17 | 江苏集萃智能液晶科技有限公司 | Local erasing device for liquid crystal writing board and writing erasing pen for liquid crystal writing board |
| CN111161636A (en) * | 2020-01-02 | 2020-05-15 | 武汉天马微电子有限公司 | Flexible display device |
| WO2020200164A1 (en) * | 2019-04-03 | 2020-10-08 | Smart Liquid Crystal Technologies Co., Ltd. | A selectively erasable liquid crystal writing board |
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Application publication date: 20170818 |