CN208636806U - The electronic blackboard and system of one key breath screen - Google Patents
The electronic blackboard and system of one key breath screen Download PDFInfo
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- CN208636806U CN208636806U CN201821197170.3U CN201821197170U CN208636806U CN 208636806 U CN208636806 U CN 208636806U CN 201821197170 U CN201821197170 U CN 201821197170U CN 208636806 U CN208636806 U CN 208636806U
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Abstract
The utility model provides the electronic blackboard and system of a kind of key breath screen, is related to touch screen technology field, including driving plate, relay module, display screen, touch screen, host and breath screen switch；Driving plate is used for the input signal of receiving host, and corresponding control signal is sent to display screen to control the light on and off of display screen, and driving plate is also used to send control signal to relay module；Relay module is used for the on-off according to USB interface power supply on control signal control touch screen；Starting breath screen switch, host enter dormant state, and first control signal is sent to display screen and relay module to control display screen extinguishing and touch screen power-off by driving plate；Breath screen switch is closed, host enters working condition, and second control signal is sent to display screen and relay module to control display screen and light and touch screen work by driving plate.Key breath screen electronic blackboard provided by the utility model and system can promote the efficiency of operation and improve the Experience Degree of user.
Description
Technical field
The utility model relates to electric touch screen technical fields, more particularly, to a kind of electronic blackboard that key breath shields and are
System.
Background technique
Many display class products all have touch function at present, and touch panel usually has USB (Universal Serial
Bus, universal serial bus) interface, which may be coupled on the USB socket on mainboard or host, in touch touch panel
When, it is sent position of touch on mainboard or host by USB line, then mainboard or host are made accordingly according to corresponding position
Reaction or feedback.
On electronic blackboard, there are also one layer of glass before touch screen, write or mark for people, when this function of use
When, display screen is not only closed, so that being more clear with the content of chalk-writing visible.It is also required to close touch function simultaneously,
It avoids during writing or explaining, after hand touches screen, the software or content having already turned in mainboard or host is carried out not
Relevant operation causes some unnecessary troubles.And use OPS (Open Pluggable Specification, it is open
Pluggable specification) electronic blackboard, mainboard is made of 2 parts of host and JAE interface board, this is that Intel is convenient for mainboard
Plug/maintenance and form a kind of standard, JAE interface board is a kind of board of signal converting/processing, the HDMI in host
The signal convertings such as (High Definition Multimedia Interface, high-definition multimedia interface), USB are to JAE
On interface board, JAE interface board is generally fixed to inside electronic blackboard, and host is designed as the structure of plug type.
Inside electronic blackboard, for the HDMI signal exported on JAE interface board to driving plate, driving plate realizes the conversion of signal,
By HDMI signal be converted into the matched signal format of display screen (such as VB1 signal), also have USB interface on JAE interface board, for interior
Portion uses, and usually the USB line of touch screen is connected on the interface, and touching signals are transmitted on mainboard by realization, thus to master
Software/display content on plate is operated and is controlled.
When being write, while closing display screen, it is also desirable to the software in system be allowed not have maloperation, phase
Holding inside the Pass can not change, this will control system and touch screen.Mainly there are following 2 kinds of operations in currently available technology
Mode:
1, it before closing display screen, first shuts down, OPS no longer works after shutdown, the also nonfunctional of the USB interface on OPS, touch screen
It no longer works, drawback is, when reusing, needs to be switched on again, and the software and content operated needed for opening leads to the party
Formula is complex for operation step, frequently switches on machine, inefficient.
2, system is made to enter suspend mode by the switch button on OPS, the time for being again introduced into system is shorter, does not have to again
Opening operation software and content, display screen also enter dormant state, and drawback is, the USB function of the JAE interface board of different manufacturers
It is arranged different, after pressing switch button, the USB interface on the JAE interface board of part is still in working condition, i.e. touch screen
Signal can also be transmitted, accidentally touching can allow OPS to enter normal operating conditions, have picture to show on display screen, influence to write display
Effect and operating experience.
For the problem of above-mentioned cumbersome, inefficiency existing in the prior art and experience sense difference, there is presently no
It puts forward effective solutions.
Utility model content
In view of this, the purpose of this utility model is to provide the electronic blackboard and system of a kind of key breath screen, Ke Yijian
Change operation, the Experience Degree of raising efficiency and user.
In a first aspect, the utility model embodiment provides a kind of electronic blackboard of key breath screen, above-mentioned electronic blackboard packet
It includes: driving plate, relay module, display screen, touch screen, host and breath screen switch；Above-mentioned driving plate, for the defeated of receiving host
Enter signal and corresponding control signal be sent to display screen to control the working condition of display screen, the driving plate be also used to after
Electrical appliance module sends control signal；Above-mentioned relay module, for controlling USB interface electricity on above-mentioned touch screen according to control signal
The on-off in source；When starting above-mentioned breath screen switch, host enters dormant state, and first control signal is sent to display by driving plate
Screen and relay module are extinguished and touch screen power-off with controlling display screen；When closing breath screen switch, host enters working condition,
Second control signal is sent to display screen and relay module to control display screen and light and touch screen work by driving plate.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, above-mentioned driving plate includes suspend mode key；When starting the suspend mode key, driving plate enters dormant state, and first is controlled
Signal is sent to display screen and relay module, and to control, display screen extinguishes and touch screen powers off；When closing suspend mode key, drive
Movable plate enters working condition, and second control signal is sent to display screen and relay module and lights and touches to control display screen
Touch screen work.
With reference to first aspect and its each possible embodiment, the utility model embodiment provide the second of first aspect
The possible embodiment of kind, wherein above-mentioned driving plate is also used to convert signal and exported.
With reference to first aspect and its each possible embodiment, the utility model embodiment provide the third of first aspect
The possible embodiment of kind, wherein there are two pin mouths for above-mentioned driving plate setting, for exporting first control signal or the second control
Signal processed.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, above-mentioned relay module is that high level triggers state of a control.
With reference to first aspect or the 4th kind of possible embodiment of first aspect, the utility model embodiment provide
5th kind of possible embodiment of one side, wherein there are two pin mouth, above-mentioned two pins for above-mentioned relay module setting
Mouth is respectively used to connection supply voltage and 5V voltage.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, above-mentioned host includes JAE interface board and host box；The host box is plug type structure, for outputing signal to JAE
Interface board；The JAE interface board is fixed on inside electronic blackboard, for above-mentioned output signal to be transferred or handled.
With reference to first aspect and its possible embodiment, the utility model embodiment provide the 7th kind of first aspect
Possible embodiment, wherein above-mentioned electronic blackboard, driving plate, relay module and touch screen common ground connection.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, above-mentioned electronic blackboard further includes power panel, for powering for board and display screen.
Second aspect, the utility model embodiment also provide a kind of electronic system of key breath screen, and above system includes glass
The electronic blackboard that any one of glass plate and above-mentioned first aspect and its each possible embodiment provide；Above-mentioned glass plate and the electronics
Blackboard is connected and is arranged in front of the electronic blackboard, and after the electronic blackboard, which ceases, to be shielded, above-mentioned glass plate is for showing that user is written
Written information or markup information.
The utility model embodiment bring it is following the utility model has the advantages that
The electronic blackboard and system of key breath screen provided by the utility model, are opened by moving the breath screen that opens on electronic blackboard
It closes, the host on electronic blackboard is made to enter dormant state, subsequent driving plate detects the input of JAE interface board no signal just by low electricity
Flat control signal is sent to display screen and relay module to control display screen extinguishing and touch screen power-off, so as to realize
The operation that display screen is write or is marked under display screen and the idle state of touch screen.Compared with traditional scheme, this
Scheme is easy to operate, it is only necessary to which starting or closing breath screen switch can reach corresponding purpose, improve operating efficiency and change
Into user experience.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not making the creative labor for those skilled in the art
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the electronic blackboard of key breath screen provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the electronic blackboard of another key breath screen provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the electronic blackboard of another key breath screen provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the electronic blackboard of another key breath screen provided by the embodiment of the utility model.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not making creation
Property labour under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
Currently, electronic blackboard is a kind of high-tech electronic product instead of traditional blackboard, it includes: liquid crystal blank, electronics
Blackboard, liquid crystal interactive mode all-in-one machine liquid crystal blank, electronic blackboard, liquid crystal interactive mode all-in-one machine.Electronic blackboard is using reliable and stable
Infrared induction location technology, liquid crystal display screen technology and computer technology in one, with electronic whiteboard difference, it is integrated with throwing
Many office electronic blackboard functions such as the mechanical, electrical sub- blank of shadow, LCD TV, computer, in addition special writing software, makes at information
It manages more convenient, demonstrates more lively, do not need complicated installation and debugging, reduce system cost.Electronic blackboard is by pervious
Single-touch develops to multiple point touching now, so that computer and the mankind has been done step-by-step by planar development to space in teaching
Be used interchangeably.
In general, using before the touch screen on the electronic blackboard of OPS, there are also one layer of glass, write or mark for people
Note will not only close display screen, so that being more clear with the content of chalk-writing visible when using this function.It also needs simultaneously
Touch function is closed, prevents some unnecessary operations, and currently in order to solve this trouble, take two kinds of solutions
Scheme, the first is first shut down before closing display screen, and touch screen is allowed no longer to work.But such scheme may require that and ceaselessly switch
Machine ability normal use, operation is too frequent, while inefficiency.Second scheme is controlled by the switch key on OPS
System enters suspend mode.Such scheme improves efficiency, but because the USB function on the JAE interface board of different manufacturers is set
It sets not fully identical, leads to press after switch key part USB interface still in working condition, have picture aobvious on display screen
Show, influences the experience effect of user.
Based on this, a kind of electronic blackboard and system of key breath screen provided by the embodiment of the utility model can simplify behaviour
Make, the Experience Degree of raising efficiency and user.
Convenient for understanding the present embodiment, to come to carry out a simple illustration to whole design scheme first, referring to
A key shown in FIG. 1 ceases the structural schematic diagram of the electronic blackboard of screen, shows in figure, which includes display screen, touch
Screen, driving plate, power panel, relay module, JAE interface board, host box and breath screen switch.The relay module has pin 1
With 2 two pin mouths of pin, pin 1 connect with one end of touch screen and provides supply voltage VCC, 2 end of pin and JAE interface
Plate one end connects and is provided with 5V voltage.
When starting above-mentioned breath screen switch, host enters dormant state, and no longer output signal, driving plate is examined on host box
It measures no signal and inputs and send control signals to display screen and relay module to control display screen extinguishing and touch screen and break
Electricity.When closing breath screen switch, host enters working condition, and driving plate is outputed signal on host box, and driving plate will be corresponding
Control signal is sent to display screen and relay module to control display screen and light and touch screen work.
In order to better understand the present embodiment, below to the electricity of the breath screen of one key of one kind disclosed in the utility model embodiment
Sub- blackboard describes in detail.
Embodiment one:
The utility model embodiment provides a kind of electronic blackboard of key breath screen, key breath screen shown in Figure 2
The structural schematic diagram of electronic blackboard shows driving plate 21, relay module 22, display screen 23, touch screen 24, host 25 in figure
Shield switch 26 with breath.
Wherein, above-mentioned host 25 includes JAE interface board and host box；The host box is plug type structure, is used for
JAE interface board is outputed signal to, which is fixed on the inside of electronic blackboard, for turning to above-mentioned output signal
It connects or handles.Specifically, which can use OPS electronic blackboard, and similarly host box can also use OPS host box
Son.
Above-mentioned driving plate 21, for receiving host 25 input signal and corresponding control signal is sent to display screen 23
To control the working condition of display screen 23, which is also used to send control signal to relay module 22.The wherein work
It may include lighting or extinguishing, in work and the various states that do not work as state.
Wherein, above-mentioned driving plate 21 is also used to convert signal and exported.Specifically, main inside electronic blackboard
HDMI signal is exported on machine 25 to driving plate 21, driving plate 21 is converted the HDMI signal, i.e., is converted into HDMI signal
With the matched signal format of display screen 23, such as VB1 signal or other types of signal.In addition, above-mentioned driving plate 21 is provided with
Two pin mouths, for exporting first control signal or second control signal, first control signal can be believed for low level control
Number, second control signal can be high-level control signal.
Above-mentioned relay module 22, for controlling the on-off of USB interface power supply on above-mentioned touch screen 24 according to control signal.
Wherein, above-mentioned relay module 22 is that high level triggers state of a control.Above-mentioned relay module 22 is provided with pin 1 and draws simultaneously
2 two pin mouths of foot, above-mentioned two pin 1 and pin 2 are respectively used to connection supply voltage and 5V voltage.Specifically, relay
The working principle of module 22 is, when the signal for inputting the relay module 22 is high-level control signal, pin 1 and pin 2
Short circuit, i.e. supply voltage VCC and 5V link together, and the connection of touch screen 24 can work normally；When the input relay module 22
Signal when being low level control signal, pin 1 and the open circuit of pin 2, i.e. VCC and 5V are disconnected, and touch screen 24 can not be effectively connected to,
Cisco unity malfunction.In addition, touch screen 24 generally uses USB2.0 signal wire, the definition of signal wire is 5V, D-, D+, GND, is incited somebody to action
The contact pin wiring of USB function on JAE interface board comes out, and D-, D+, GND are connected on touch screen, by the VCC pin of touch screen
It is connected on the pin 1 of relay module 22, the 5V power pins of USB are connected on the pin 2 of relay module 22.
When starting above-mentioned breath screen switch 26, host 25 enters dormant state, and driving plate 21 sends first control signal
Extinguished and the power-off of touch screen 24 to display screen 23 and relay module 22 with controlling display screen 23.
Specifically, in the case where electron blackboard is powered, touch screen 24 is worked normally, and complete machine, which is in, to be worked normally, is aobvious
Show state.In 25 normal course of operation of host, the breath screen switch 26 of OPS electronic blackboard is pressed, host 25 enters dormant state,
HDMI signal is no longer exported, automatically into dormant state, to export in driving plate 21 when driving plate 21 detects no signal input
Control signal becomes low level control signal, and display screen 23 extinguishes, while pin 1 and pin 2 disconnect in relay module 22,
The 5V of JAE interface board and the VCC pin of touch screen 24 are not attached to together, are not powered on touch screen 24, the not work of touch screen 24
Make.
When closing breath screen switch 26, host 25 enters working condition, and second control signal is sent to aobvious by driving plate 21
Display screen 23 and relay module 22 are lighted and the work of touch screen 24 with controlling display screen 23.
Specifically, after closing breath screen switch 26 of electronic blackboard, host 25 enters normal operating conditions, and exports HDMI
Signal is to driving plate 21, and when which has detected signal input, automatically into normal operating conditions, controlling signal becomes
High-level control signal, display screen 23 normally display OPS picture, while relay module 22 be closed, the 5V of JAE interface board and
The VCC pin of touch screen 24 links together, and powers to touch screen 24, and touch screen 24 works normally.In addition, above-mentioned driving plate
21,24 common ground connection of relay module 22 and touch screen.
Further, it is contemplated that the powerup issue of all boards and display screen, the electronics of key breath screen shown in Figure 3
The structural schematic diagram of blackboard, wherein above-mentioned electronic blackboard further includes power panel 31, for powering for board and display screen 23.
The electronic blackboard for one key of one kind breath screen that the utility model embodiment provides, passes through the breath on starting electronic blackboard
Screen switch, makes the host on electronic blackboard enter dormant state, and subsequent driving plate detects no signal input just by the first control
Signal is sent to display screen and relay module to control display screen extinguishing and touch screen power-off, so as to realize in display screen
With the operation write or marked to display screen under the idle state of touch screen.Compared with traditional scheme, this scheme behaviour
Make simple, it is only necessary to which starting or closing breath screen switch can reach corresponding purpose, while also greatly improve the effect of operation
Rate and the Experience Degree for improving user.
In view of the mode directly operated to the host on electronic blackboard, the control of display screen and touch screen is come
It says, is not convenience so between having certain performance reaction time.The structure of the electronic blackboard of key breath screen shown in Figure 4
Schematic diagram shows in the figure, suspend mode key 41 is additionally provided in driving plate, when starting the suspend mode key 41, driving plate
21 enter dormant state, and low level control signal is sent to display screen 23 and relay module 22 and is put out with controlling display screen 23
It goes out and is powered off with touch screen 24.When closing suspend mode key 51, driving plate 21 enters working condition, and high-level control signal is sent out
It send to display screen 23 and relay module 22 and is lighted and the work of touch screen 24 with controlling display screen 23.
Embodiment provided by the utility model, by being provided with suspend mode key in driving plate, direct controlling and driving plate
State shows that the time of picture shortens after can making breath screen, user can be faster compared with above-mentioned embodiment again
Ground obtains a feedback, can further promote the Experience Degree of user.
Embodiment two:
The utility model embodiment provides a kind of key breath screen system, including a key provided by the above embodiment breath screen
Electronic blackboard and glass plate；
Above-mentioned glass plate is connected with the electronic blackboard and is arranged in front of the electronic blackboard, after the electronic blackboard, which ceases, to be shielded,
Above-mentioned glass plate is used to show the written information or markup information of user's write-in.Specifically, when above-mentioned key breath screen keeps electronics black
After plate breath screen, which is equivalent to one piece of common blackboard at this time, and user can be write on the glass plate with chalk
Or it marks.
A key provided by the embodiment of the utility model ceases screen system, black with the electronics of a key provided by the above embodiment breath screen
Plate technical characteristic having the same reaches identical technical effect so also can solve identical technical problem.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.To those skilled in the art, above-mentioned term can be understood in this reality with concrete condition
With the concrete meaning in novel.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that above embodiments, only specific embodiment of the present utility model, to illustrate that this is practical
Novel technical solution, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned implementation
The utility model is described in detail in example, it should be understood by those skilled in the art that: any skill for being familiar with the art
Art personnel within the technical scope disclosed by the utility model, can still carry out technical solution documented by previous embodiment
Modification can readily occur in variation or equivalent replacement of some of the technical features；And these are modified, change or replace
It changes, the spirit and scope for the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution should all cover
It is within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of electronic blackboard of key breath screen, which is characterized in that the electronic blackboard includes: driving plate, relay module, shows
Display screen, touch screen, host and breath screen switch；
The driving plate, for receiving the input signal of the host and corresponding control signal being sent to display screen to control
The working condition of display screen, the driving plate are also used to send control signal to the relay module；
The relay module, for controlling the on-off of USB interface power supply on the touch screen according to the control signal；
When starting the breath screen switch, the host enters dormant state, and first control signal is sent to by the driving plate
The display screen and the relay module are extinguished and touch screen power-off with controlling the display screen；
When closing the breath screen switch, the host enters working condition, and second control signal is sent to by the driving plate
The display screen and the relay module are lighted and touch screen work with controlling the display screen.
2. electronic blackboard according to claim 1, which is characterized in that the driving plate includes suspend mode key；
When starting the suspend mode key, the driving plate enters dormant state, and the first control signal is sent to institute
Stating display screen and the relay module, the display screen extinguishes and the touch screen powers off to control；
When closing the suspend mode key, the driving plate enters working condition, and the second control signal is sent to institute
Display screen and the relay module are stated to control the display screen and light and touch screen work.
3. -2 described in any item electronic blackboards according to claim 1, which is characterized in that the driving plate be also used to signal into
Row is converted and is exported.
4. -2 described in any item electronic blackboards according to claim 1, which is characterized in that there are two pins for the driving plate setting
Mouthful, for exporting the first control signal or the second control signal.
5. electronic blackboard according to claim 1, which is characterized in that the relay module is high level triggering control shape
State.
6. electronic blackboard according to claim 1 or 5, which is characterized in that there are two pins for the relay module setting
Mouthful, described two pin mouths are respectively used to connection supply voltage and 5V voltage.
7. electronic blackboard according to claim 1, which is characterized in that the host includes JAE interface board and host box；
The host box is plug type structure, for outputing signal to the JAE interface board；
The JAE interface board is fixed on inside the electronic blackboard, for the output signal to be transferred or handled.
8. -2 described in any item electronic blackboards according to claim 1, which is characterized in that the electronic blackboard, the driving plate,
The relay module and the touch screen common ground connection.
9. -2 described in any item electronic blackboards according to claim 1, which is characterized in that the electronic blackboard further includes power supply
Plate, for powering for board and display screen.
10. a kind of electronic system of key breath screen, which is characterized in that the system comprises glass plate and claim 1-9 are any
Electronic blackboard described in；
The glass plate is connected with the electronic blackboard and is arranged in front of the electronic blackboard, shields when the electronic blackboard ceases
Afterwards, the glass plate is used to show the written information or markup information of user's write-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821197170.3U CN208636806U (en) | 2018-07-26 | 2018-07-26 | The electronic blackboard and system of one key breath screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821197170.3U CN208636806U (en) | 2018-07-26 | 2018-07-26 | The electronic blackboard and system of one key breath screen |
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| CN208636806U true CN208636806U (en) | 2019-03-22 |
Family
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| CN201821197170.3U Active CN208636806U (en) | 2018-07-26 | 2018-07-26 | The electronic blackboard and system of one key breath screen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862898A (en) * | 2020-07-15 | 2020-10-30 | 宁波视睿迪光电有限公司 | Mirror display device |
| CN113721795A (en) * | 2021-09-24 | 2021-11-30 | 北京德为智慧科技有限公司 | Touch screen control device, touch screen control method and display device |
| CN114464148A (en) * | 2021-12-28 | 2022-05-10 | 深圳市鸿合创新信息技术有限责任公司 | Electronic equipment and method and device for controlling power-on/power-off time sequence thereof |
| CN115171435A (en) * | 2021-04-06 | 2022-10-11 | 广州视源电子科技股份有限公司 | Electronic blackboard |
| CN116185513A (en) * | 2023-04-27 | 2023-05-30 | 北京大上科技有限公司 | Screen locking system and method |
-
2018
- 2018-07-26 CN CN201821197170.3U patent/CN208636806U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862898A (en) * | 2020-07-15 | 2020-10-30 | 宁波视睿迪光电有限公司 | Mirror display device |
| CN115171435A (en) * | 2021-04-06 | 2022-10-11 | 广州视源电子科技股份有限公司 | Electronic blackboard |
| CN115171435B (en) * | 2021-04-06 | 2024-02-23 | 广州视源电子科技股份有限公司 | Electronic blackboard |
| CN113721795A (en) * | 2021-09-24 | 2021-11-30 | 北京德为智慧科技有限公司 | Touch screen control device, touch screen control method and display device |
| CN114464148A (en) * | 2021-12-28 | 2022-05-10 | 深圳市鸿合创新信息技术有限责任公司 | Electronic equipment and method and device for controlling power-on/power-off time sequence thereof |
| CN116185513A (en) * | 2023-04-27 | 2023-05-30 | 北京大上科技有限公司 | Screen locking system and method |
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