CN209980225U - Bistable intelligent storage electronic liquid crystal handwriting board device - Google Patents
Bistable intelligent storage electronic liquid crystal handwriting board device Download PDFInfo
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- CN209980225U CN209980225U CN201920156950.1U CN201920156950U CN209980225U CN 209980225 U CN209980225 U CN 209980225U CN 201920156950 U CN201920156950 U CN 201920156950U CN 209980225 U CN209980225 U CN 209980225U
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Abstract
The utility model provides a bistable state intelligence storage electron liquid crystal handwriting pad device, it includes cholesteric liquid crystal handwriting membrane, the electromagnetic screen, electromagnetic pen and circuit unit, the lower floor of cholesteric liquid crystal handwriting membrane is located to the electromagnetic screen, cholesteric liquid crystal handwriting membrane and electromagnetic screen are connected with the circuit unit electricity respectively, when using the electromagnetic pen to write, cholesteric liquid crystal handwriting membrane can demonstrate in real time because of pressure and write the handwriting, the electromagnetic screen can carry out electromagnetic induction with the electromagnetic pen, circuit unit accessible electromagnetic screen and electromagnetic pen between the electromagnetic induction and form the handwriting data of writing of electromagnetic pen, and can write data transmission to intelligent terminal or save. The utility model discloses a cholesteric liquid crystal handwriting screen is as outermost screen to be equipped with the electromagnetic screen, it not only can demonstrate in real time and write the handwriting, can acquire the handwriting data of electromagnetic pen in addition in order to go on further using. The utility model has the characteristics of the function is practical, with low costs, convenient to use, it has very strong practicality, should widely popularize.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a handwriting pad, in particular to bistable state intelligence storage electron liquid crystal handwriting pad device.
[ background of the invention ]
With the progress of science and technology, people gradually use electronic handwriting boards to replace paper books for writing and drawing and the like. Common electronic handwriting boards mainly include electromagnetic screens, resistive screens, capacitive screens, cholesteric liquid crystal handwriting screens and the like.
The resistance screen and the capacitance screen can display writing contents in real time, can also conveniently store writing tracks, are convenient to use, but have high cost, can be generally developed into a tablet personal computer, a mobile phone and the like which have more comprehensive functions to use, and can be rarely developed into a device specially used for handwriting recording or drawing.
The electromagnetic screen and the cholesteric liquid crystal handwriting screen have lower cost and are widely applied to the field of handwriting and recording or drawing at present. For the electromagnetic screen, the position information of the electromagnetic pen is acquired mainly through electromagnetic induction between the electromagnetic pen and the electromagnetic screen, and writing handwriting is formed through calculation. The electromagnetic screen cannot present the handwriting in real time, so that the handwriting is not visual enough, but the handwriting of the electromagnetic pen can be acquired and displayed on a display terminal, such as a computer display, so that the electromagnetic screen is widely applied to a hand drawing board and is mainly used for collecting line drawings for computer drawing. The cholesteric liquid crystal handwriting board is low in power consumption, can present writing handwriting due to pressure, and can present the writing handwriting in real time, but the writing handwriting can not be extracted into electronic data to be stored and can not be further applied on the basis because the presentation of the writing handwriting is realized by the pressure sensed by the cholesteric liquid crystal. Therefore, the existing electronic handwriting board is high in cost, cannot display handwriting in real time, is not visual enough to write, or cannot extract the handwriting for storage or further application.
[ Utility model ] content
The utility model aims at solving the above problem, and provide a bistable state intelligent storage electron liquid crystal handwriting pad device.
In order to realize the above-mentioned purpose, the utility model provides a bistable state intelligent storage electron liquid crystal handwriting pad device, its characterized in that, it includes cholesteric liquid crystal handwriting film, electromagnetic screen, electromagnetic pen and circuit unit, the electromagnetic screen is located the lower floor of cholesteric liquid crystal handwriting film, cholesteric liquid crystal handwriting film and electromagnetic screen respectively with the circuit unit electricity is connected, works as the use the electromagnetic pen is in when writing on the cholesteric liquid crystal handwriting film, cholesteric liquid crystal handwriting film can demonstrate in real time because of pressure and write the handwriting, the electromagnetic screen can carry out electromagnetic induction with the electromagnetic pen, circuit unit accessible electromagnetic induction between electromagnetic screen and the electromagnetic pen and the handwriting data of writing that form the electromagnetic pen to can be with this handwriting data transmission to intelligent terminal.
Furthermore, the circuit unit comprises a main control module, an electromagnetic screen control unit, a handwriting film driving unit, a storage module and a wireless transmission module, wherein the electromagnetic screen control unit is used for acquiring position data of an electromagnetic pen and is respectively connected with the electromagnetic screen and the main control module; the handwriting film driving unit is used for driving the cholesteric liquid crystal handwriting film to clear the screen, and is respectively connected with the cholesteric liquid crystal handwriting film and the main control module; the storage module is connected with the main control module; the wireless transmission module is used for wireless communication with the intelligent terminal and is respectively connected with the storage module and the main control module.
Further, the wireless transmission module comprises one or more of a Bluetooth module and a WIFI module.
Further, the intelligent terminal comprises a smart phone and a tablet computer.
Furthermore, the circuit unit further comprises a USB module, a power management unit and a rechargeable battery, which are respectively connected with the main control module, and when the USB module is connected with an external power charger, the main control module charges the rechargeable battery through the power management unit; when the USB module is connected with an electric device, the main control module controls the rechargeable battery to discharge through the power management unit so as to supply power to the electric device; when the USB module is connected with the reading equipment, the main control module transmits data to the reading equipment and/or charges the rechargeable battery through the USB module.
Furthermore, the rechargeable battery is a lithium battery, the power management unit comprises a power management module and a lithium battery protection module, the power management module is connected with the main control module, and the lithium battery protection module is connected with the power management module.
Furthermore, the circuit unit further comprises a control key and a key circuit, the control key is connected with the key circuit, and the key circuit is electrically connected with the main control module.
Furthermore, the circuit unit further comprises an indicator light and an indicator circuit, the indicator light is connected with the indicator circuit, and the indicator circuit is electrically connected with the main control module.
The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device, because it is equipped with cholesteric liquid crystal handwriting film to inboard at cholesteric liquid crystal handwriting film is equipped with the electromagnetic screen, consequently it not only can demonstrate writing of electromagnetic pen in real time, can acquire writing data of electromagnetic pen moreover, and accessible wireless transmission module will write writing data transmission for intelligent terminal, and then can carry out further application on this basis. The utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device it adopts cholesteric liquid crystal handwriting screen as outermost screen, and it is not dazzling, has the eyeshield function, and what can see in addition is obtained, especially adapted professional demands such as writing, drawing. Furthermore, the utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device still can be used as portable power source, and it can be when intelligent terminal does not have the electricity, and reverse charges for intelligent terminal. The utility model discloses a bistable state intelligent storage electron liquid crystal handwriting pad device has that the function is practical, with low costs, convenient to use's characteristics, and it has very strong practicality, should widely popularize.
[ description of the drawings ]
Fig. 1 is a schematic block diagram of the present invention.
[ detailed description ] embodiments
The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.
The utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device includes cholesteric liquid crystal handwriting film, electromagnetic screen, electromagnetic pen and circuit unit.
The cholesteric liquid crystal handwriting film is used for handwriting to display handwriting in real time, can select a known cholesteric liquid crystal handwriting film, has bistable characteristics, can display pressure handwriting due to pressure, does not consume power for maintaining the pressure handwriting, and only depends on the characteristics of cholesteric liquid crystal, so that the cholesteric liquid crystal handwriting film does not consume power basically when used for writing and maintaining the writing handwriting; and when the full-screen writing handwriting needs to be removed, applying an electric field to the cholesteric liquid crystal handwriting film. Therefore, the cholesteric liquid crystal handwriting film has extremely low power consumption, does not consume power during writing, consumes power during screen clearing, and has little power consumption.
The cholesteric liquid crystal handwriting film is a screen of the handwriting board device located on the outermost side and is used for direct writing. When the electromagnetic pen is used for writing on the bistable intelligent storage electronic liquid crystal handwriting board device, the electromagnetic pen directly writes on the cholesteric liquid crystal handwriting film, and the cholesteric liquid crystal handwriting film presents the handwriting of the electromagnetic pen in real time in response to pressure.
Because the cholesteric liquid crystal handwriting film can only present handwriting in real time due to pressure and cannot extract handwriting data of the electromagnetic pen, an electromagnetic screen is arranged at the lower layer of the cholesteric liquid crystal handwriting film for obtaining the handwriting data of the electromagnetic pen to store and further apply. The electromagnetic screen can be a known electromagnetic screen and is provided with a coil capable of performing electromagnetic induction with the electromagnetic pen. The electromagnetic screen and the cholesteric liquid crystal handwriting film can be directly attached, and can also be separated through a middle frame and other components. For the whole bistable intelligent storage electronic liquid crystal handwriting board device, the electromagnetic screen is positioned inside the handwriting board device. The electromagnetic screen is matched with the electromagnetic pen, electromagnetic induction can be carried out between the electromagnetic screen and the electromagnetic pen to generate induced electromotive force, so that the position of the electromagnetic pen can be determined through the size of the induced electromotive force, and handwriting data of the electromagnetic pen can be acquired.
The electromagnetic pen and the electromagnetic screen can refer to the known technology, wherein the electromagnetic pen can be active or passive. In this embodiment, the electromagnetic pen is preferably active. When the electromagnetic pen writes on the surface of the cholesteric liquid crystal handwriting film, the cholesteric liquid crystal handwriting film directly presents handwriting in real time due to the pressure of the electromagnetic pen, and the electromagnetic screen on the inner side of the cholesteric liquid crystal handwriting film performs electromagnetic induction with the electromagnetic pen to obtain handwriting data of the electromagnetic pen.
The circuit unit is used for connecting the cholesteric liquid crystal handwriting film and the electromagnetic screen, so that corresponding functions are realized. The circuit unit comprises a main control module, an electromagnetic screen control unit, a handwriting film driving unit, a storage module, a wireless transmission module, a USB module, a power management unit, a rechargeable battery and corresponding peripheral circuits such as a key circuit and an indicating circuit.
The handwriting film driving unit is used for driving the cholesteric liquid crystal handwriting film and providing an alternating current control signal for the cholesteric liquid crystal handwriting film to control the cholesteric liquid crystal handwriting film to perform full screen erasing. The input end of the handwriting film driving unit is connected with the main control module, the output end of the handwriting film driving unit is connected with the cholesteric liquid crystal handwriting film, and the known handwriting film driving unit can be selected, for example, the handwriting film driving unit can generally comprise a booster circuit, an alternating current signal control circuit and a feedback circuit, wherein the booster circuit is used for boosting low-voltage direct current into high-voltage direct current required by driving of the cholesteric liquid crystal handwriting film, the alternating current signal control circuit is used for modulating the high-voltage direct current into high-voltage alternating current to drive the cholesteric liquid crystal handwriting film, and the feedback circuit is used for feedback adjustment of the booster circuit and the alternating current signal control circuit.
The electromagnetic screen control unit is used for detecting an induced electromotive force signal generated by the coil of the electromagnetic screen due to the induction with the electromagnetic pen, and calculating the position information of the electromagnetic pen according to the induced electromotive force signal. One end of the electromagnetic screen control unit is electrically connected with the main control module, and one end of the electromagnetic screen control unit is electrically connected with the electromagnetic screen. The electromagnetic screen control unit can be designed according to the prior art by referring to the known technology or by a person skilled in the art.
The storage module is used for storing data, and can be used for storing position data of the electromagnetic pen, namely handwriting data and other related data. The storage module can be a known storage module and is electrically connected with the main control module.
The wireless transmission module is used for communicating with the wireless terminal so as to conveniently send the handwriting of the user to the intelligent terminal or store the handwriting to the cloud. The intelligent terminal comprises a smart phone and a tablet computer, in the embodiment, the wireless transmission module is preferably the Bluetooth module, the smart terminal is preferably the smart phone, the wireless transmission module is communicated with the smart terminal through Bluetooth, and therefore the content written by a user on the bistable intelligent storage electronic liquid crystal handwriting board device through the electromagnetic pen can be sent to the smart terminal, and further application is facilitated. The wireless transmission module is respectively connected with the storage module and the main control module, can wirelessly transmit data to be transmitted of the storage module and the main control module to the intelligent terminal, and can wirelessly receive a control command from the intelligent terminal.
The rechargeable battery is used for providing power to ensure the operation of the whole device and supplying energy to the electric equipment. The rechargeable battery is preferably a lithium battery, which is electrically connected to the main control module in a known manner.
The USB module is used for connecting a USB data line to realize energy and data transmission and can be used as a power input end, a power output end and a data output end. The USB module can be connected with a USB data line to realize the following functions: as a data output end, data is transmitted to the outside in real time through a USB data line, for example, data such as handwriting and the like is transmitted; as a power input end, a rechargeable battery is charged through a power charger with a USB data line; the power output terminal is connected to an external electric device through a USB data line to charge the electric device. The USB module can be a known USB module.
The power management unit is used for managing and controlling the USB module and the rechargeable battery, so that different functions can be realized when the USB module is connected with different devices. The power management unit comprises a power management module and a lithium battery protection module, the power management module is connected with the main control module, and the lithium battery protection module is connected with the power management module. The lithium battery protection module is used for safety protection and avoids overcharge, overvoltage, overdischarge, overload, short circuit and the like. The power management module is used for controlling the storage, charging and power supply of electric energy. When the USB module is connected with an external power supply charger, the power supply management unit can charge the rechargeable battery through the USB module; when the USB module is connected with the external electric equipment, the power management unit can supply power to the external electric equipment through the USB module. When the USB module is connected with a reading device, such as a computer, the main control module can transmit data to the reading device and charge the rechargeable battery through the USB module. When the data is transmitted to the reading device through the USB module, the data can be transmitted to the reading device according to a reading request of the reading device, or the data can be transmitted to the reading device in real time in the writing process of the electromagnetic pen, so that the data stored in the storage module can be transmitted to the reading device through the USB module, and the USB module can also be used as a digital board to transmit the data to the reading device in real time, and can be used as an external input device of the reading device.
The power management unit may refer to a circuit design of a power management unit of a known mobile power supply, or may be designed by a person skilled in the art according to a specific function described in this embodiment, and this embodiment does not limit a specific circuit structure thereof.
In addition, in order to enrich the function of the bistable intelligent storage electronic liquid crystal handwriting board device, the device is also provided with a peripheral circuit. In this embodiment, the peripheral circuit includes a key circuit, a control key, an indicator light, and an indicator circuit.
The control keys are used for performing function control, for example, a switch key, a screen clearing key for controlling the cholesteric liquid crystal film to be cleaned in a full screen mode, an uploading key for controlling the electromagnetic pen to upload handwriting data and the like. The number and functional design of the control keys can be set as required, and are not limited to the specific functions described in this embodiment. The control key is connected with the key circuit, and the key circuit is electrically connected with the main control module. The key circuit may be designed according to the specific functions described in the embodiment by referring to the known technology or by those skilled in the art.
The indicator light is used for functional status indication, for example, an indicator light for indicating a wireless communication status, an indicator light for indicating a charging status, an indicator light for indicating a discharging status, an indicator light for indicating a low circuit. The functions and number of the indicator lights can be set according to the needs, and are not limited to the specific functions described in the embodiment. The indicating lamp is electrically connected with the indicating circuit, and the indicating circuit is electrically connected with the main control module. The indicating circuit can be designed by referring to the known technology or by the skilled person according to the function of the embodiment.
The main control module is used for realizing the control of each module and circuit unit, controlling the storage module to store handwriting data, transmitting the handwriting data to the intelligent terminal through the wireless transmission module, and receiving a control command from the intelligent terminal through the wireless transmission module; the screen cleaning of the cholesteric liquid crystal handwriting film can be controlled by the handwriting film driving unit, handwriting data of an electromagnetic pen can be acquired by the electromagnetic screen control unit, and a power supply can be managed by the power supply management unit so as to realize functions of charging, discharging and the like; it can control the indicator light to make corresponding indication, etc. The main control module can be designed by using a known single chip microcomputer or a known chip.
Therefore, the utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device, because it is equipped with cholesteric liquid crystal handwriting film, and be equipped with the electromagnetic screen in the inboard of cholesteric liquid crystal handwriting film, consequently it not only can demonstrate writing of electromagnetic pen in real time, can acquire writing data of electromagnetic pen in addition, and accessible wireless transmission module will write writing data transmission and give intelligent terminal, and then can go on further application on this basis, for example, carry out social sharing through corresponding APP on the intelligent terminal, the high in the clouds storage, write writing record playback etc.. The utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device it adopts cholesteric liquid crystal handwriting screen as outermost screen, and it is not dazzling, has the eyeshield function, and what can see in addition is obtained, especially adapted professional demands such as writing, drawing. Furthermore, the utility model discloses a bistable state intelligence storage electron liquid crystal handwriting pad device still can be used as portable power source, and it can be when intelligent terminal does not have the electricity, and reverse charges for intelligent terminal.
It should be noted that the main protection point of the present invention lies in the hardware basis, and on the hardware basis, those skilled in the art can perform application development with more functions, for example, develop corresponding application programs to realize more functions.
While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.
Claims (6)
1. A bistable intelligent storage electronic liquid crystal handwriting board device is characterized by comprising a cholesteric liquid crystal handwriting film, an electromagnetic screen, an electromagnetic pen and a circuit unit, wherein the electromagnetic screen is arranged on the lower layer of the cholesteric liquid crystal handwriting film, the cholesteric liquid crystal handwriting film and the electromagnetic screen are respectively electrically connected with the circuit unit, when the electromagnetic pen is used for writing on the cholesteric liquid crystal handwriting film, the cholesteric liquid crystal handwriting film can present writing handwriting in real time due to pressure, the electromagnetic screen can perform electromagnetic induction with the electromagnetic pen, the circuit unit can form writing data of the electromagnetic pen through the electromagnetic induction between the electromagnetic screen and the electromagnetic pen, and the writing data can be transmitted to an intelligent terminal;
the circuit unit comprises a main control module, an electromagnetic screen control unit, a handwriting film driving unit, a storage module, a wireless transmission module, a USB module, a power management unit and a rechargeable battery;
the electromagnetic screen control unit is used for acquiring position data of an electromagnetic pen and is respectively connected with the electromagnetic screen and the main control module;
the handwriting film driving unit is used for driving the cholesteric liquid crystal handwriting film to clear the screen, and is respectively connected with the cholesteric liquid crystal handwriting film and the main control module;
the storage module is connected with the main control module;
the wireless transmission module is used for wireless communication with the intelligent terminal and is respectively connected with the storage module and the main control module;
the USB module, the power management unit and the rechargeable battery are respectively connected with the main control module, and when the USB module is connected with an external power charger, the main control module charges the rechargeable battery through the power management unit; when the USB module is connected with an electric device, the main control module controls the rechargeable battery to discharge through the power management unit so as to supply power to the electric device; when the USB module is connected with the reading equipment, the main control module transmits data to the reading equipment and/or charges the rechargeable battery through the USB module.
2. The bistable smart storage electronic liquid crystal handwriting pad apparatus of claim 1, wherein said wireless transmission module comprises one or more of a bluetooth module, a WIFI module.
3. The bistable smart storage electronic liquid crystal handwriting pad apparatus of claim 1, wherein said smart terminal comprises a smart phone, a tablet computer.
4. The bistable intelligent storage electronic liquid crystal handwriting pad apparatus of claim 1, wherein said rechargeable battery is a lithium battery, said power management unit comprises a power management module and a lithium battery protection module, said power management module is connected with said main control module, said lithium battery protection module is connected with said power management module.
5. The bistable intelligent storage electronic liquid crystal handwriting pad apparatus of claim 1, wherein said circuit unit further comprises a control key and a key circuit, said control key is connected with said key circuit, said key circuit is electrically connected with said main control module.
6. The bistable smart storage electronic liquid crystal handwriting pad apparatus of claim 1, wherein said circuit unit further comprises an indicator light and an indicator circuit, said indicator light is connected with said indicator circuit, said indicator circuit is electrically connected with said main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156950.1U CN209980225U (en) | 2019-01-29 | 2019-01-29 | Bistable intelligent storage electronic liquid crystal handwriting board device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920156950.1U CN209980225U (en) | 2019-01-29 | 2019-01-29 | Bistable intelligent storage electronic liquid crystal handwriting board device |
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| CN209980225U true CN209980225U (en) | 2020-01-21 |
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| CN201920156950.1U Active CN209980225U (en) | 2019-01-29 | 2019-01-29 | Bistable intelligent storage electronic liquid crystal handwriting board device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230808A (en) * | 2020-10-20 | 2021-01-15 | 深圳市宝立创科技有限公司 | Electromagnetic screen liquid crystal handwriting board and preparation method thereof |
| CN112698753A (en) * | 2021-01-05 | 2021-04-23 | 京东方科技集团股份有限公司 | Touch display device, control method and system |
-
2019
- 2019-01-29 CN CN201920156950.1U patent/CN209980225U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230808A (en) * | 2020-10-20 | 2021-01-15 | 深圳市宝立创科技有限公司 | Electromagnetic screen liquid crystal handwriting board and preparation method thereof |
| CN112698753A (en) * | 2021-01-05 | 2021-04-23 | 京东方科技集团股份有限公司 | Touch display device, control method and system |
| CN112698753B (en) * | 2021-01-05 | 2024-04-16 | 京东方科技集团股份有限公司 | Touch display device, control method and system |
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