CN217587953U - Fingerprint identification portable display with system - Google Patents
Fingerprint identification portable display with system Download PDFInfo
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- CN217587953U CN217587953U CN202220388246.0U CN202220388246U CN217587953U CN 217587953 U CN217587953 U CN 217587953U CN 202220388246 U CN202220388246 U CN 202220388246U CN 217587953 U CN217587953 U CN 217587953U
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Abstract
The utility model discloses a portable display with systematic fingerprint identification, which comprises a display main body, a display screen, a power supply circuit, a power supply switch, a main control device and a system circuit for driving the display screen to work, wherein the input end of the power supply switch is connected with the power supply circuit, the output end of the power supply switch is connected with the system circuit, and the main control device is connected with the controlled end of the power supply switch; the fingerprint identification device is arranged on the display main body and connected with the main control device, and is used for outputting an identification success signal when the acquired fingerprint signal is consistent with a preset fingerprint signal and outputting an identification failure signal when the acquired fingerprint signal is inconsistent with the preset fingerprint signal; the main control device controls the power supply switch to be switched on when receiving the identification success signal output by the fingerprint identification device, and controls the power supply switch to be switched off when receiving the identification failure signal output by the fingerprint identification device. The utility model provides a problem that the inside data of portable display was stolen.
Description
Technical Field
The utility model relates to a display field, in particular to take portable display of fingerprint identification of system.
Background
The portable display has higher operation convenience compared with other displays, and gradually occupies an important position in the display field due to the efficient support of the portable display on activities such as mobile business office, mobile entertainment and the like.
The existing portable display owner can use conveniently, and other 'illegal' users not authorized by the equipment owner can also use conveniently, which becomes the biggest challenge in the security of the portable display.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take portable display of fingerprint identification of system aims at solving the problem that the inside data of portable display was stolen.
In order to achieve the above object, the utility model provides a take portable display of fingerprint identification of system, include:
the display device comprises a display main body, a display control module and a display control module, wherein the display main body is provided with a display screen, a power supply circuit, a power supply switch, a main control device and a system circuit for driving the display screen to work;
the fingerprint identification device is arranged on the display main body, is connected with the main control device and is used for acquiring and identifying a fingerprint signal, outputting an identification success signal when the acquired fingerprint signal is consistent with a preset fingerprint signal and outputting an identification failure signal when the acquired fingerprint signal is inconsistent with the preset fingerprint signal;
the main control device is used for controlling the power supply switch to be switched on when receiving the identification success signal output by the fingerprint identification device, and controlling the power supply switch to be switched off when receiving the identification failure signal output by the fingerprint identification device.
Optionally, the power supply circuit includes a power supply circuit and a plurality of voltage boost circuits, the power supply circuit is connected to the plurality of voltage boost circuits, and the plurality of voltage boost circuits are configured to boost the power supply voltage output by the power supply circuit to different power supply voltages for output.
Optionally, the fingerprint identification apparatus has a receiving port, a sending port and a reset port, and the master control apparatus is connected to the receiving port, the sending port and the reset port respectively.
Optionally, the fingerprint recognition device is a capacitive fingerprint recognition sensor.
Optionally, the fingerprint identification apparatus further has a storage circuit, the storage circuit is configured to store the fingerprint signal collected by the capacitive fingerprint identification sensor, and when the fingerprint identification apparatus triggers a fingerprint identification function, the fingerprint identification apparatus reads the fingerprint signal of the storage circuit.
Optionally, the fingerprint identification portable display further includes a signal receiving port, where the signal receiving port is used to receive an input signal of an external device, so as to implement information interaction with the external device.
Optionally, the portable fingerprint identification display further includes a signal detection circuit, the signal detection circuit is connected to the signal receiving port and the main control device, and when detecting that the input signal of the signal receiving port does not match with the main control device, the main control device controls the power supply switch to be turned off.
The utility model discloses a set up the display main part, have the display screen, supply circuit, power supply switch, master control unit, system circuit, fingerprint identification device, the display main part, have the display screen, supply circuit, power supply switch, master control unit and the system circuit that drives the display screen work, fingerprint identification device, locate the display main part, the input of power supply switch is connected with supply circuit, the output of power supply switch is connected with system circuit, master control unit is connected with the controlled end of power supply switch, fingerprint identification device is connected with master control unit, system circuit is used for driving the display screen work, when power supply switch switches on, system circuit supplies power for the display screen, when power supply switch turns off, system circuit does not supply power for the display screen, the display can not use, fingerprint identification device is used for gathering and discerning fingerprint signal, compare with the fingerprint signal that fingerprint identification device predetermines through the fingerprint signal that gathers, when the collected fingerprint signal is consistent with the preset fingerprint signal, an identification success signal is sent, when the collected fingerprint signal is inconsistent with the preset fingerprint signal, an identification failure signal is sent, when the collected fingerprint signal is started, the fingerprint identification device is controlled to trigger a fingerprint identification function, meanwhile, a fingerprint verification signal is output on a display screen, the display displays the fingerprint verification signal for prompting a user to input the fingerprint signal, after the fingerprint identification device receives the fingerprint signal of the user, the received fingerprint signal is collected and identified, corresponding identification success signal and identification failure signal are output to the main control device according to the identification result, when the main control device receives the identification success signal of the fingerprint identification device, the main control device controls the storage device to be started, when the main control device receives the identification failure signal of the fingerprint identification device, the main control device controls the storage device to be switched off. Compare portable display in the background art, the utility model discloses a set up fingerprint identification device and locked in giving the display, solved the problem that the inside data of portable display was stolen.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of a fingerprint identification portable display with a system according to the present invention;
FIG. 2 is a functional block diagram of an embodiment of the power supply circuit of FIG. 1;
FIG. 3 is a schematic circuit diagram of an embodiment of the power supply circuit of FIG. 1;
FIG. 4 is a schematic diagram of an embodiment of the fingerprint identification device in FIG. 1;
fig. 5 is a schematic circuit diagram of an embodiment of a memory circuit in a fingerprint identification portable display with a system according to the present invention.
The reference numbers illustrate:
| reference numerals | Name(s) | Reference numerals | Name(s) |
| 100 | |
200 | |
| 300 | |
400 | |
| 500 | |
600 | |
| 520 | |
530 | Voltage booster circuit |
| TX | Receiving port | RX | Transmitting port |
| BT_SET | Reset port |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a take portable display of fingerprint identification of system can improve the security of storage device internal information in the display.
Existing display devices can be used by other users not authorized by the device owner, and system layer protected material is susceptible to theft if the device is lost.
Referring to fig. 1, in an embodiment of the present invention, a fingerprint identification portable display with the belt system includes:
a fingerprint recognition device 100 for collecting and recognizing a fingerprint signal, transmitting a recognition success signal when the collected fingerprint signal is consistent with a preset fingerprint signal, and transmitting a recognition failure signal when the collected fingerprint signal is inconsistent with the preset fingerprint signal;
the main control device 200 is respectively connected with the fingerprint identification device 100 and the power supply switch 400, when receiving a starting signal of the system circuit 300, the main control device 200 controls the fingerprint identification device 100 to trigger a fingerprint identification function, when the main control device 200 receives an identification success signal of the fingerprint identification device 100, the power supply switch 400 is controlled to be switched on, and when the main control device 200 receives an identification failure signal of the fingerprint identification device 100, the power supply switch 400 is controlled to be switched off; the power supply switch 400 is used for controlling the power supply circuit 500 to supply power to the system circuit 300, so as to control the operation of the system circuit 300, when the power supply switch 400 is turned on, the system circuit 300 is not powered, the system circuit 300 is not started, and when the power supply switch 400 is turned on, the system circuit 300 is powered, and the system circuit 300 is started.
The system circuit 300 is used for driving the display screen 600, and when the system circuit 300 works, the display screen 600 can be normally used.
Specifically, the fingerprint identification device 100 sets a corresponding fingerprint coded lock for the system circuit 300, when the display starts the system circuit 300 for the first time, the display screen 600 prompts to record a fingerprint signal, the recorded fingerprint signal is a preset value when the fingerprint identification device 100 is directed to the system circuit 300, when the system circuit 300 is started, the system circuit 300 sends a start signal to the main control device 200, the main control device 200 receives the start signal sent by the system circuit 300 and triggers the fingerprint identification device 100 to trigger a fingerprint identification function, the display screen 600 outputs a fingerprint verification signal, the display displays a window for fingerprint verification and prompting a user to perform fingerprint verification, the fingerprint identification device 100 compares an acquired fingerprint signal with a preset fingerprint signal, when the acquired fingerprint signal is consistent with the preset fingerprint signal, an identification success signal is sent to the main control device 200, the main control device 200 controls the power supply switch 400 to be turned on, the power supply circuit 500 supplies power to the system circuit 300, the system circuit 300 is started, the display screen 600 works, at this time, when the acquired fingerprint signal is inconsistent with the preset fingerprint signal, the power supply circuit 200 sends a power supply signal, the power supply circuit 500 fails, the system circuit 300 fails to display screen 600 does not display, and the system circuit 300 fails to display.
In this embodiment, the work of collecting and identifying the fingerprint by the fingerprint identification device 100 is controlled by the main control device 200, which is different from the traditional password, the fingerprint signal collected by the fingerprint identification device 100 belongs to the hardware password, the verification of the password is realized by the main control device 200, rather than by the application, that is, the management authority of the fingerprint identification device 100 is not controlled by the application and software in the system circuit 300, but is controlled by the main control device 200, the main control device 200 receives the corresponding start signal, the fingerprint identification device 100 is activated by the main control device 200, at this time, the fingerprint identification device 100 triggers the fingerprint identification function, collects the fingerprint signal of the user, when the user accesses the display system circuit 300, the start signal of the system circuit 300 is triggered, the behaviors such as accessing a database, logging in some network platforms, even mobile payment and the like are required in the system circuit 300, the fingerprint identification function of the fingerprint identification device 100 can be adopted, so as to improve the safety of the system circuit 300 in the display, meanwhile, the operation of inputting the instruction is very complicated, the frequent behavior of really influencing the experience of the use, and even the display can be realized by setting a large number of the password, and the convenience of unlocking of the display can be realized by only by lightly setting a key, and the convenience of the whole display process of the display can be realized.
When the system circuit 300 is first opened, an application which needs to be locked is selected, the system circuit 300 sends a fingerprint setting request to the main control device 200 through the communication interface, the main control device 200 sends a fingerprint verification request to the fingerprint identification device 100 and prompts a user to confirm a fingerprint, fingerprint setting information is sent to the main control device 200 after the fingerprint is verified, after the main control device 200 receives a fingerprint setting instruction, the instruction is locked to the system circuit 300, and the system circuit 300 is controlled to be locked, so that the setting of a fingerprint password applied to the system circuit 300 is completed, namely, the locking process aiming at the application in the system circuit 300 is performed.
When the locked application needs to be opened, the system circuit 300 sends a fingerprint identification request to the main control device 200 through the communication interface, the main control device 200 sends a fingerprint verification request to the fingerprint identification device 100 and prompts the user to confirm the fingerprint, the verification fingerprint is passed and then information that the verification is passed is sent to the main control device 200, and after the main control device 200 receives the instruction that the verification is passed, the instruction that the verification is passed is sent to the system circuit 300, and the user is allowed to open the application; and if the identification fails, sending an instruction of unsuccessful verification, and not allowing the application to be opened. Or, according to the setting of the user, the system circuit 300 may be forcibly turned off when the identification fails, or the display may be forcibly made to display a black screen, so as to effectively prevent an unauthorized user from stealing application or private information in the system circuit 300.
The fingerprint verification information output by the main control device 200 is displayed on the display screen 600, the user is prompted to set a corresponding fingerprint password in the process of locking the main control device 200 for the system circuit 300, the user is prompted to perform fingerprint verification in the process of unlocking the main control device 200 for the system circuit 300, and the fingerprint identification result of the user is informed after the fingerprint signal of the user is collected.
When the system circuit 300 is started, the main control device 200 prompts a user to input fingerprint information through the display screen 600, the user can input a plurality of pieces of fingerprint information according to own requirements, the application and local files in the system circuit 300 are independently locked, when the display is driven by the system circuit 300, fingerprint identification is required, the system circuit 300 sends a password verification request to the main control device 200, and then the main control device 200 sends a fingerprint verification request to a fingerprint identification system; at this time, the user is prompted to confirm the fingerprint again, and the information of successful identification is sent to the main control device 200 after the fingerprint identification is passed; the main control device 200 turns on the power supply circuit 500 to supply power to the system circuit 300, so that the system circuit 300 is normally turned on, otherwise, signals of other ports are forcibly switched to prevent an unauthorized user from starting the system circuit 300 (the display function and the system application are respectively provided with the use permission, so that other users can be prevented from entering the system circuit 300 layer when only the display is authorized to be used as a signal playing device); in the system circuit 300, when the locked application needs to be opened, the system circuit 300 initiates a start signal to the main control device 200 through the communication interface, the main control device 200 sends a fingerprint verification request to the fingerprint identification device 100 and prompts a user to confirm a fingerprint, the fingerprint identification device 100 triggers an identification function, compares an acquired fingerprint identification signal with a preset fingerprint identification signal, sends an identification success signal to the main control device 200 when the acquired fingerprint identification signal is consistent with the preset fingerprint identification signal, sends an identification failure signal to the main control device 200 when the acquired fingerprint identification signal is inconsistent with the preset fingerprint identification signal, and sends a verification passing instruction to the system circuit 300 when the main control device 200 receives the identification success signal, so that the system circuit 300 is controlled to be opened, and a user is allowed to open the application; when the main control device 200 receives the identification failure signal, it sends an instruction that the verification fails to pass to the system circuit 300, and controls the system circuit 300 to turn off, so that the user is not allowed to open the application, or the system circuit 300 can be forcibly turned off when the identification fails according to the setting of the user, or the display is forcibly made to display a black picture, thereby effectively preventing an unauthorized user from stealing the application or private information in the system circuit 300.
The display screen 600 internally comprises an intelligent system, the display screen 600 respectively sets the use permission for the display function and the application of the intelligent system, so that other users can be prevented from entering an intelligent system layer when only being authorized to use the display as a signal playing device, the system circuit 300 is also used for controlling the internal intelligent system, and when the system circuit 300 controls the display screen 600 to normally work, if the display is required to be switched to the intelligent system for display, fingerprint identification is required to be carried out again. An intelligent system in the display screen 600 sends a password identification request to the main control device 200, and then the main control device 200 sends a fingerprint verification request to the fingerprint identification device 100; at this time, the main control device 200 prompts the user to confirm the fingerprint again, the fingerprint identification is passed, the information of successful identification is sent to the central control, the central control switches on the power supply to the intelligent system, so that the intelligent system is normally started, otherwise, the intelligent system is forcibly switched to signals of other ports, and the unauthorized user is prevented from entering the internal intelligent system.
In the intelligent system, an application lock, such as a photo album, an App, a folder, etc., may be separately set for a software application, and this part is also controlled by the main control apparatus 200, and the intelligent system issues a fingerprint identification request to the main control apparatus 200, and allows a user to open an application for use when identification is successful, and does not allow the application to be opened when identification is failed. And the intelligent system can be forcibly closed or the display is forcibly enabled to display a black picture when the identification fails according to the setting of the user, so that an unauthorized user is effectively prevented from stealing application or private information in the intelligent system in the display screen 600.
The utility model discloses a display main body, which is provided with a display screen, a power supply circuit, a power supply switch, a main control device, a system circuit, a fingerprint identification device, a display main body, a display screen, a power supply circuit, a power supply switch, a main control device and a system circuit for driving the display screen to work, the fingerprint identification device is arranged on the display main body, the input end of the power supply switch is connected with the power supply circuit, the output end of the power supply switch is connected with the system circuit, the main control device is connected with the controlled end of the power supply switch, the fingerprint identification device is connected with the main control device, the system circuit is used for driving the display screen to work, when the power supply switch is switched on, the system circuit does not supply power for the display screen, the display can not be used, the fingerprint identification device is used for collecting and identifying a fingerprint signal, the fingerprint identification device is compared with a fingerprint signal preset by the fingerprint identification device, when the collected fingerprint signal is consistent with the preset fingerprint signal, the collected fingerprint signal is inconsistent with the fingerprint signal, the fingerprint signal is sent out, the display device is used for storing the fingerprint identification signal when the fingerprint identification device is started, the main control device controls the storage device to be turned off. Compare portable display in the background art, the utility model discloses a set up fingerprint identification device and locked in giving the display, solved the problem that the inside data of portable display was stolen.
Referring to fig. 2 and 3, in an embodiment, the power supply circuit 500 includes a power supply circuit 520 and a plurality of voltage boosting circuits 530, the power supply circuit 520 is respectively connected to the plurality of voltage boosting circuits 530, and the plurality of voltage boosting circuits 530 are configured to boost a power supply voltage output by the power supply circuit 520 into different power supply voltage outputs.
In this embodiment, the power circuit 520 supplies power to the entire display system, and for circuits with different voltage requirements, a corresponding boost circuit 530 needs to be additionally configured, and power supply control of different circuits changes synchronously with system power supply, that is, the display is turned on, the power circuit 520 provides basic voltage for all circuits, and supplies power to different circuit parts after passing through the boost circuit 530, so as to ensure normal operation of the system.
Referring to fig. 4, in an embodiment, the fingerprint identification device 100 has a receiving port TX, a transmitting port RX, and a resetting port BT _ SET, and the main control device 200 is connected to the receiving port TX, the transmitting port RX, and the resetting port BT _ SET respectively.
In this embodiment, the receiving port TX of the fingerprint identification device 100 is configured to receive a control signal of the main control device 200, and control the fingerprint identification device 100 to trigger functions of collecting and identifying a fingerprint signal, the transmitting port RX is configured to transmit an identification success signal and an identification failure signal to the main control device 200, the reset port BT _ SET is configured to receive a reset signal of the main control device 200, and the fingerprint identification device 100 is controlled to reset after the main control device 200 receives the identification success signal and the identification failure signal of the fingerprint identification device 100.
In one embodiment, the fingerprint recognition device 100 is a capacitive fingerprint recognition sensor for collecting fingerprint signals.
In this embodiment, the fingerprint identification mainly uses a capacitive fingerprint identification sensor, and the fingerprint sampling uses a matrix scanning identification method, and the fingerprint information is converted into an electrical signal by a silicon cell array up to 19 × 19, and is stored in the fingerprint identification device 100.
Referring to fig. 5, in an embodiment, the fingerprint identification device 100 further has a storage circuit, the storage circuit is used for storing the fingerprint signal collected by the capacitive fingerprint identification sensor, and the fingerprint identification device 100 reads the fingerprint signal of the storage circuit when the fingerprint identification device 100 triggers a fingerprint identification function.
In this embodiment, the fingerprint identification device 100 stores the collected fingerprint information in its internal storage circuit, and when the user needs to record the fingerprint information, the fingerprint identification device 100 stores the collected fingerprint texture as a number in the form of an electrical signal, and stores the number in the storage circuit.
Referring to fig. 4, in an embodiment, the fingerprint identification portable display further includes a signal receiving port, where the signal receiving port is used for receiving an input signal of an external device to enable information interaction with the external device.
In this embodiment, the external device may input a signal to the display through the signal receiving port, and the external device may be a device such as a notebook, a PC, or a mobile phone, and the interface of the input signal has Type C, DP, or HDMI, and is used to project the input signal onto the display.
In an embodiment, the portable fingerprint identification display further includes a signal detection circuit, the signal detection circuit is respectively connected to the signal receiving port and the main control device 200, and when detecting that the input signal of the signal receiving port is not matched with the main control device 200, the main control device controls the power supply switch 400 to be turned off.
In this embodiment, the detection signal mainly reads the state of the input signal, such as HSync, VSync (the signal itself contains the field synchronization signal), etc., the signal input detection module detects whether there is a plugging/unplugging behavior of the signal device, if it detects the signal plugging, it detects whether there are valid HSync, VSync, etc. signals on the Data, and is used to determine whether there is signal transmission, it detects that valid signals are only transmitted to the main control device, and the signals are transmitted to the main control device 200 for scaling processing by using the internal signal high-speed channel of the display chip, when the main control device 200 receives the unmatched signals, the power supply switch 400 is controlled to be turned off, the display cannot be started, and it is avoided to work when the unmatched signals are received.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the conception of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (7)
1. A portable display with system for fingerprint identification, comprising:
the display device comprises a display main body, a display control module and a display control module, wherein the display main body is provided with a display screen, a power supply circuit, a power supply switch, a main control device and a system circuit for driving the display screen to work;
the fingerprint identification device is arranged on the display main body and connected with the main control device, and is used for collecting and identifying fingerprint signals, outputting an identification success signal when the collected fingerprint signals are consistent with preset fingerprint signals, and outputting an identification failure signal when the collected fingerprint signals are inconsistent with the preset fingerprint signals;
the main control device is used for controlling the power supply switch to be switched on when receiving the identification success signal output by the fingerprint identification device, and controlling the power supply switch to be switched off when receiving the identification failure signal output by the fingerprint identification device.
2. A fingerprint identification portable display with system as claimed in claim 1 wherein said power supply circuit comprises a power supply circuit and a plurality of voltage boost circuits, said power supply circuit being connected to a plurality of said voltage boost circuits respectively, a plurality of said voltage boost circuits for boosting a power supply voltage output by said power supply circuit to a different power supply voltage output.
3. A fingerprint identification portable display with system as in claim 2 wherein said fingerprint identification device has a receive port, a transmit port and a reset port, said master control device being connected to said receive port, said transmit port and said reset port respectively.
4. A fingerprint identification portable display with system as in claim 1 wherein said fingerprint identification device is a capacitive fingerprint identification sensor.
5. A fingerprint identification portable display with system according to claim 4 wherein said fingerprint identification device further has a memory circuit for storing fingerprint signals collected by said capacitive fingerprint identification sensor, said fingerprint identification device reading said memory circuit fingerprint signals when said fingerprint identification device activates a fingerprint identification function.
6. A fingerprint identification portable display with system as in claim 5 wherein said fingerprint identification portable display further comprises a signal receiving port for receiving input signals from an external device for enabling information interaction with the external device.
7. A fingerprint identification portable display with system as claimed in claim 6 further comprising signal detection circuit connected to said signal receiving port and said master control device respectively, wherein said master control device controls said power switch to turn off when detecting that the input signal of said signal receiving port does not match said master control device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220388246.0U CN217587953U (en) | 2022-02-24 | 2022-02-24 | Fingerprint identification portable display with system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220388246.0U CN217587953U (en) | 2022-02-24 | 2022-02-24 | Fingerprint identification portable display with system |
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| CN217587953U true CN217587953U (en) | 2022-10-14 |
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| CN202220388246.0U Active CN217587953U (en) | 2022-02-24 | 2022-02-24 | Fingerprint identification portable display with system |
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