CN206584357U - Display device with content safety storage and playing function - Google Patents
Display device with content safety storage and playing function Download PDFInfo
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- CN206584357U CN206584357U CN201621295137.5U CN201621295137U CN206584357U CN 206584357 U CN206584357 U CN 206584357U CN 201621295137 U CN201621295137 U CN 201621295137U CN 206584357 U CN206584357 U CN 206584357U
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- display device
- management chip
- safety management
- display
- intrusion
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- 230000001681 protective effect Effects 0.000 claims abstract description 44
- 230000008054 signal transmission Effects 0.000 claims abstract description 25
- 230000006870 function Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 abstract description 2
- 230000009545 invasion Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 4
- 230000009172 bursting Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of display device with content safety storage and playing function, including memory and display device, memory storage encrypted content source.Display device includes display control unit, signal transmission unit and display screen.Display control unit is electrically connected by signal transmission unit with display screen.Display device also includes safety management chip, intrusion detecting unit and protective casing.Safety management chip is electrically connected with display control unit and memory respectively, is stored with for the key for decrypting the encrypted content source.Intrusion detecting unit is electrically connected with safety management chip.Protective casing formation sealing space, display control unit, signal transmission unit, safety management chip and intrusion detecting unit housing are in sealing space.Intrusion detecting unit is used to detect the intrusion event to protective casing.When intrusion detecting unit detects intrusion event, safety management chip controls delete key.The utility model, which can be detected, invades and avoids content source from being copied.
Description
Technical field
The utility model is related to a kind of display device, more particularly to a kind of can ensure that what content source was not copied has content
Safety storage and the display device of playing function.
Background technology
Existing display device, for example, mobile phone, tablet personal computer or head-mounted display apparatus etc., can provide easily interior
Hold display, shown content includes but is not limited to film, TV or document.So, existing display device can not be protected in it
Rong Yuan is not copied so that the interests of content production business receive the infringement of illegal pirated disc copier.
Utility model content
In view of this, it is necessary to a kind of display device with content safety storage and playing function is provided, with solution
State problem.
The utility model provide it is a kind of stored with content safety and playing function display device, including memory and aobvious
Showing device, the memory is used to store encrypted content source to be shown, and the display device includes display control unit, signal
Transmission unit and display screen, the display control unit are electrically connected by the signal transmission unit with the display screen, and it is special
Levy and be, the display device also includes safety management chip, intrusion detecting unit and protective casing, the safety management chip
Be stored with for the key that the encrypted content source is decrypted, the safety management chip respectively with the display control list
First and described memory electrical connection, the intrusion detecting unit is electrically connected with the safety management chip, the protecting crust bodily form
Into a sealing space, the display control unit, signal transmission unit, safety management chip and the intrusion detecting unit housing
In the sealing space, the intrusion detecting unit is used to detect the intrusion event to the protective casing, when the invasion
When detecting unit detects the intrusion event, the safety management chip controls delete the key in the safety management chip
And it is temporarily stored into the key in the corresponding module of display device.
Preferably, when the intrusion detecting unit detects the intrusion event, the safety management chip is also controlled
Send warning signal, interrupt any ongoing service of display device, and delete the encrypted content source in the memory with
And the content source being decrypted in display device, and cut off the transmission of the display signal.
Preferably, when the intrusion detecting unit does not detect intrusion event, the safety management chip is used to control
The encrypted content source of memory storage is decrypted according to the key for system, and controls to carry out the content source after decryption
Decoding, the display control unit is used for according to decryption and the corresponding display signal of decoded content source output, and passes through institute
State signal transmission unit to transmit the display signal to the display screen, to cause the display screen according to the display signal
Play the content source.
Preferably, the display device also include random access memory, decoder and deciphering module, the random access memory,
The decoder and deciphering module are sequentially connected electrically, and the deciphering module is connected with the memory, the random access memory with
The display control unit electrical connection, the deciphering module and the decoder are also electrically connected with the safety management chip, institute
Stating safety management chip is used to keep in key to the deciphering module, controls the deciphering module to be read from the memory
The encrypted content source, and control the deciphering module that the content source is decrypted according to the key, the bursting tube
Reason chip is additionally operable to control the decoder to decode the content source after the decryption, and decoded content source is interim
The random access memory is stored in, the display control unit reads the decoded content source from the random access memory
And corresponding display signal is exported, and transmitted the display signal to the display screen by the signal transmission unit, with
So that the display screen plays the content source according to the display signal.
Preferably, the display device also includes battery, and the battery is electrically connected with the safety management chip, the electricity
Pond is used to be the safety management chip power supply, described when the battery electric quantity is less than preset value or battery missing
Safety management chip is judged as an intrusion event, and controls to delete the content source in the memory, the safety management chip
The key kept in the key of middle storage and the corresponding module of display device.
Preferably, the intrusion detecting unit includes some intrusion detecting circuits, and some flexible PCBs are arranged at
The inner surface of the protective casing.
Preferably, each intrusion detecting circuit includes an at least pressure sensor, and the pressure sensor is applied for sensing
It is added in and believes for sensing the pressure being applied on the protective casing and producing sensing when the pressure is less than a predetermined threshold value
Number, the safety management chip is judged as an intrusion event when receiving the sensing signal, and controls to delete the key,
Or further delete the content source being decrypted in encrypted content source and display device in the memory.
Preferably, the caution signal that the safety management chip is produced is to default a telephone number dialing phone or hair
Send short message.
Preferably, the display device also includes warning circuit, and the warning circuit is produced when receiving caution signal
Alarm sound or alarm indication.
Preferably, the protective casing is made up of opaque or hard material.
Display device of the present utility model, intrusion event is detected by intrusion detecting unit, when detecting intrusion event,
Caution signal is produced in time, can effectively protect its content source not to be copied so that the interests of content production business are obtained effectively
Protection.
Brief description of the drawings
, below will be in the utility model embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The required accompanying drawing used is briefly described, it should be apparent that, drawings described below is only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the module diagram of the display device of the utility model embodiment.
Fig. 2 is content safety storage and the schematic flow diagram of player method of the utility model embodiment.
Embodiment
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Need explanation
, in the case where not conflicting, the feature in embodiments herein and embodiment can be mutually combined.
Many details are elaborated in the following description to fully understand the utility model, described implementation
Example is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
All other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
It should be noted that when a component is considered as " connection " another component, it can be directly to separately
One component may be simultaneously present component placed in the middle.
Fig. 1 is the module diagram of the display device of the utility model embodiment.The display device 100 is that one kind can
Automatic to carry out numerical computations and/or the equipment of information processing according to the instruction for being previously set or storing, its hardware is included but not
It is limited to microprocessor, application specific integrated circuit（Application Specific Integrated Circuit, ASIC）, can compile
Journey gate array（Field-Programmable Gate Array, FPGA）, digital processing unit（Digital Signal
Processor, DSP）, embedded device etc..The display device 100 may be, but not limited to, mobile phone, tablet personal computer, wearing
Formula glasses, VR glasses etc. possess the electronic equipment of display and processing function.The display device 100 is used to be converted to content source
Display signal is simultaneously converted to optical signal output by display signal.
The display device 100 includes memory 10 and display device 20.
Wherein, the memory 10 is used to store encrypted content source to be shown.The memory 10 can be intelligent matchmaker
Body card（Smart media card）, safe digital card（Secure digital card）, flash memory cards（Flash
card）Etc. storage device.Wherein, in certain embodiments, the encrypted content source stored in the memory 10 is by symmetrical
The content source of AES encryption.
The display device 20 includes display control unit 21, signal transmission unit 22 and display screen 23.The display control
Unit 21 processed is electrically connected by the signal transmission unit 22 with the display screen 23.The display control unit 21 is used to read
Encrypted content source in the memory 10 and the display signal for controlling output, and will be described by the signal transmission unit 22
Display signal is transmitted to the display screen 23, to cause the display screen 23 to play the content source according to the display signal.
In the present embodiment, the signal transmission unit 22 can be signal transmssion line etc..In other embodiments, the signal transmission is single
Member 22 is other electronic components with signal transfer functions.
The display device 20 also includes safety management chip 24, intrusion detecting unit 25 and protective casing 26.The peace
Full managing chip 24 is electrically connected with the display control unit 21.The intrusion detecting unit 25 and the safety management chip 24
Electrical connection.It is stored with the safety management chip 24 for the key for decrypting the encrypted content source.In certain embodiments,
The key for decrypting the encrypted content source is the encryption key after being encrypted by rivest, shamir, adelman.When described close
When key is encryption key, also it is stored with the safety management chip 24 or the memory 10 for entering to the encryption key
The private key of row decryption.In further embodiments, the encrypted content source stored in the memory 10 is to be calculated by symmetric cryptography
The key for being used to decrypt the content source stored in the content source of method encryption, the safety management chip 24 is unencryption
Key.
Wherein, the safety management chip 24 can be central processing unit, microprocessor, microcontroller, single-chip microcomputer, numeral letter
Number processor etc..
Wherein, the intrusion detecting unit 25 is arranged on protective casing 26, for whether detecting the protective casing 26
Invaded.Specifically, in one embodiment, the intrusion detecting unit 25 includes some flexible PCBs（It is not shown）And setting
In some intrusion detecting circuits on each flexible PCB（It is not shown）, some flexible PCBs are arranged at the protection
The inner surface of housing 26.In other embodiments, the intrusion detecting unit 25 only includes intrusion detecting circuit, and the invasion is detectd
Slowdown monitoring circuit is directly arranged at the inner surface of the protective casing 26, and some flexible PCBs can be omitted.
Further, in one embodiment, each intrusion detecting circuit includes sensor（It is not shown）, the sensor use
In sensing intrusion event and produce the corresponding invasion signal.The safety management chip 24 is receiving the invasion signal
When, control produces the caution signal.
Further, in one embodiment, the sensor be pressure sensor, for detect protective casing 26 whether by
Open, if protective casing 26 is opened, the pressure that pressure sensor can be caused to sense is reduced or disappeared, therefore, the pressure
Force snesor produces the invasion signal when sensing pressure less than a predetermined threshold value.For example, the pressure sensor is settable
In the interlayer of protective casing 26 and by the clamp pressure of interlayer, when protective casing 26 is not switched on, the pressure sensor
The pressure sensed is more than the predetermined threshold value, and when protective casing 26 is opened, then clamp pressure disappears, the pressure sensing
The pressure that device is sensed will be less than the predetermined threshold value.In other embodiments, the sensor can be but not limited to, and power is quick
Sensor, torque or torque sensor etc..
The protective casing 26 is internally formed a sealing space, is a safety zone in its sealing space.The display
It is empty that control unit 21, signal transmission unit 22, safety management chip 24 and the intrusion detecting unit 25 are contained in the sealing
Between in.The protective casing 26 the display control unit 21, signal transmission unit 22, safety management chip 24 and it is described enter
The outside of detecting unit 25 is invaded, any mode completely cut off by the way of physical protection outside its sealing space is in sealing space
Physical contact.
Wherein, in one embodiment, the protective casing 26 is made up of opaque or hard material, and it can resist one
Determine the drilling invasion of degree, the action of any destruction protective casing 26 can all destroy the integrality of the protective casing 26,
And trigger the intrusion detecting unit 25 being arranged on protective casing 26 and produce invasion signal.Meanwhile, to the protective casing
The display control unit 21 that 26 destruction can be also destroyed inside the protective casing 26, signal transmission unit 22, bursting tube
One or more in chip 24 and the intrusion detecting unit 25 is managed, and leaves expendable vestige.If it is understood that
The protective casing 26 has is provided with anti-tear-off label at openable opening, its opening, and is provided with intrusion detecting unit
25, if there is disabled user to open the opening, the intrusion detecting unit 25 can be triggered and produce invasion signal.
The display control unit 21 is used for when the intrusion detecting unit 25 does not detect intrusion event, according to institute
The display signal of content source control output is stated, and is transmitted the display signal to described aobvious by the signal transmission unit 22
Display screen 23, to cause the display screen 23 to play the content source according to the display signal.
The safety management chip 24 is invaded for detecting the protective casing 26 in the intrusion detecting unit 25
When, produce invasion signal to the safety management chip 24, the safety management chip 24 when receiving the invasion signal,
Control produces caution signal.It is understood that in one embodiment, the caution signal can be to a default telephone number dialing electricity
Words send short message etc., or the display device 20 also includes sound or the warning circuit of display format, and it is being received
Alarm sound or alarm indication are produced during caution signal, such as warning circuit is the voice output unit for exporting sound, or
For LED for flashing alarm etc..
The safety management chip 24 is additionally operable to when the intrusion detecting unit 25 detects the intrusion event, control
Delete the key in the safety management chip 24 and the key being temporarily stored into the corresponding module of display device 20.The safety
Managing chip 24 can also record the intrusion event simultaneously.
So as to, when there is intrusion event generation, key can be deleted in time, even if encrypted content source from memory 10 by him
People illegally obtains, and can not also decrypt, and reaches the purpose of protection content source.
The safety management chip 24 is additionally operable to when the intrusion detecting unit 25 detects the intrusion event, is interrupted
Any ongoing service of display device 20, and the encrypted content source in the memory 10 is deleted, and delete display dress
Put the content source being decrypted in 20.In certain embodiments, the safety management chip 24 is additionally operable in the invasion
When detecting unit 25 detects the intrusion event, delete protection in need security information, and be not limited only to foregoing
Key and the content source of encryption or decryption.
Wherein, the safety management chip 24 is additionally operable to detect the intrusion event in the intrusion detecting unit 25
When, cut off display signal that the signal transmission unit 22 transmitted and record the intrusion event.
So as to, when there is intrusion event generation, the display signal for now having arrived signal transmission unit 22 can be cut off in time,
Prevent content source from illegally being obtained by other people from signal transmission unit 22.
In one embodiment, when the intrusion detecting unit 25 does not detect intrusion event, the safety management core
Piece 24 is used to control that the encrypted content source is decrypted according to the key, and then the content source to decryption is decoded,
The display control unit 21 is used for decrypted according to and decoding the corresponding display signal of content source output, and passes through
The signal transmission unit 22 transmits the display signal to the display screen 23, to cause the display screen 23 according to described
Show that signal plays the content source.
Wherein, in one embodiment, the display device 20 also includes random access memory 27, decoder 28 and deciphering module
201, the random access memory 27 is sequentially connected electrically with the decoder 28 and deciphering module 201, the deciphering module 201 and institute
Memory 10 is stated to connect.The random access memory 27 is electrically connected with the display control unit 21, the deciphering module 201 and institute
Decoder 28 is stated also to electrically connect with the safety management chip 24.The safety management chip 24 is used to keep in key to described
Deciphering module 201, then controls the deciphering module 201 to read the encrypted content source from the memory 10, and control
The content source is decrypted according to the key for the deciphering module 201.Wherein, in one embodiment, when the key
For the key after being encrypted by rivest, shamir, adelman, the safety management chip 24 simultaneously keeps in private key to the decryption mould
Also first the key after the encryption is decrypted according to the private key stored for block 201, the deciphering module 201, then uses
The encrypted content source is decrypted key after decryption.In certain embodiments, the deciphering module 201 can be independent for one
Deciphering chip.In another embodiment, the deciphering module 201 can also be the module being integrated in safety management chip 24.
Wherein, the corresponding module of the temporary key of foregoing display device 20 refers to the deciphering module 201.
The safety management chip 24 simultaneously controls the content source after described 28 pairs of decryption of decoder to decode, and will
Decoded content source is temporarily stored in the random access memory 27, and the display control unit 21 is from the random access memory
The content source decrypted and decode is read in 27 and is exported according to the content source decrypted and decode and is shown accordingly
Signal, and transmitted the display signal to the display screen 23 by the signal transmission unit 22, to cause the display
Screen 23 plays the content source according to the display signal.
In one embodiment, the display device 20 also includes battery 29, the battery 29 and the safety management chip
24 electrical connections, the battery 29 is used to power for the safety management chip 24, when the electricity of battery 29 less than preset value or
When battery 29 described in person is lacked, the safety management chip 24 is judged as an intrusion event, and controls to delete the memory 10
In content source and/or the key in the memory 10.It is understood that the battery 29 may be disposed at the protective casing 26
Either internally or externally, when the battery 29 is arranged at the inside of the protective casing 26, the battery 29 is arranged at the electricity
On road plate 30.Wherein, after the display device 20 is closed, the battery 29 is continuously the safety management chip 24 and invasion
Detecting unit 25 is powered so that the intrusion detecting unit 25 can also detecting real-time be invaded after the display device 20 closing,
And when there is invasion, the safety management chip 24 performs the functions such as foregoing deletion key, content source, has to content source
Effect protection.
In one embodiment, the display device 20 also includes being arranged at the circuit board 30 inside the protective casing 26.
Wherein, the display control unit 21 and the safety management chip 24 are arranged on the circuit board 30.In other embodiments
In, the circuit board 30 can be omitted.
In one embodiment, the memory 10 is arranged at content or the outside of the protective casing 26.Deposited when described
When reservoir 10 is arranged at the inside of the protective casing 26, the memory 10 is arranged on the circuit board 30.
Fig. 2 is content safety storage and the indicative flowchart of player method of the utility model embodiment.The content
Safety storage and player method are applied on display device 100.The display device 100 includes memory 10 and display device
20.The memory 10 is used to store encrypted content source to be shown.The display device 20 includes protective casing 26, positioned at institute
State the intrusion detecting unit 25, the safety management chip 24 inside the protective casing 26 and position of the inner surface of protective casing 26
Display screen 23 outside the protective casing 26, the display screen 23 is electrically connected with the safety management chip 24.The peace
Full managing chip 24 is stored with for the key for decrypting the encrypted content source.Methods described includes：
Step S21, the intrusion detecting unit 25 detects whether the protective casing 26 is invaded, if it is, into
Step S22, otherwise, into step S24.
Step S22, invasion signal, institute are produced when the intrusion detecting unit is detected when the protective casing 26 is invaded
Safety management chip 24 is stated to delete the key in safety management chip 24 according to the invasion signal control and be temporarily stored into display
Key in the corresponding module of device 20.
Step S23, the safety management chip 24 produces caution signal, cut-out display letter according to the invasion signal control
Number transmission and record the intrusion event.
Step S24, when the intrusion detecting unit 25, which detects the protective casing 26, is not invaded, the bursting tube
Reason chip 24 controls that the content source is decrypted according to the key, then the content source after decryption is decoded, institute
Display control unit 21 is stated according to decryption and the corresponding display signal of decoded content source output, and the display signal is led to
Cross signal transmission unit 22 to transmit to the display screen 23, to cause the display screen 23 according to being played the display signal
Content source.
In certain embodiments, when the intrusion detecting unit 25 detects the intrusion event, methods described is also wrapped
Include：The control of safety management chip 24 sends warning signal, and interrupts any ongoing service, deletes in the memory 10
Encrypted content source, and delete the content source being decrypted in display device 20.
Display device 100 of the present utility model detects intrusion event by intrusion detecting unit 25, is detecting invasion thing
During part, caution signal is produced in time, can effectively protect its content source not to be copied so that the interests of content production business are had
The protection of effect.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
Scope of the present utility model.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the device of foregoing description
Specific work process, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
It is described above, only specific embodiment of the utility model, but protection domain of the present utility model is not limited to
This, any one skilled in the art in the technical scope that the utility model is disclosed, can readily occur in change or
Replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with right
It is required that protection domain be defined.
Claims (7)
1. a kind of display device with content safety storage and playing function, including memory and display device, the storage
Device is used to store encrypted content source to be shown, and the display device includes display control unit, signal transmission unit and display
Screen, the display control unit is electrically connected by the signal transmission unit with the display screen, it is characterised in that the display
Device also includes protective casing, for detecting to the intrusion detecting unit of the intrusion event of the protective casing and for described
The key in safety management chip is deleted when intrusion detecting unit detects the intrusion event and display device is temporarily stored into
Key in the safety management chip of key in corresponding module, the safety management chip is used to carry out the encrypted content source
Decryption, the safety management chip is electrically connected with the display control unit and the memory respectively, the intrusion detecting list
It is first to be electrically connected with the safety management chip, one sealing space of the protective casing formation, the display control unit, signal are passed
Defeated unit, safety management chip and the intrusion detecting unit housing are in the sealing space.
2. display device as claimed in claim 1, it is characterised in that the display device also includes random access memory, decoding
Device and deciphering module, the random access memory, the decoder and deciphering module are sequentially connected electrically, the deciphering module with it is described
Memory is connected, and the random access memory is electrically connected with the display control unit, and the deciphering module and the decoder are also
Electrically connected with the safety management chip.
3. the display device as described in any one of claim 1 to 2, it is characterised in that the display device also includes battery, institute
State battery to electrically connect with the safety management chip, the battery is used to be the safety management chip power supply.
4. the display device as described in any one of claim 1 to 2, it is characterised in that the intrusion detecting unit includes some
Intrusion detecting circuit, some flexible PCBs are arranged at the inner surface of the protective casing.
5. display device as claimed in claim 4, it is characterised in that each intrusion detecting circuit includes an at least pressure sensing
Device.
6. display device as claimed in claim 1, it is characterised in that the display device also includes warning circuit, the report
Alert circuit is used to produce alarm sound or alarm indication.
7. the display device as described in any one of claim 1 to 2, it is characterised in that the protective casing by opaque or
Hard material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621295137.5U CN206584357U (en) | 2016-11-29 | 2016-11-29 | Display device with content safety storage and playing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621295137.5U CN206584357U (en) | 2016-11-29 | 2016-11-29 | Display device with content safety storage and playing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206584357U true CN206584357U (en) | 2017-10-24 |
Family
ID=60108892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621295137.5U Expired - Fee Related CN206584357U (en) | 2016-11-29 | 2016-11-29 | Display device with content safety storage and playing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206584357U (en) |
-
2016
- 2016-11-29 CN CN201621295137.5U patent/CN206584357U/en not_active Expired - Fee Related
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Granted publication date: 20171024 |