CN114816298A - Display device and display method thereof - Google Patents

Display device and display method thereof Download PDF

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Publication number
CN114816298A
CN114816298A CN202210408882.XA CN202210408882A CN114816298A CN 114816298 A CN114816298 A CN 114816298A CN 202210408882 A CN202210408882 A CN 202210408882A CN 114816298 A CN114816298 A CN 114816298A
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China
Prior art keywords
data
display
external communication
module
unit
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CN202210408882.XA
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Chinese (zh)
Inventor
穆欣炬
高裕弟
马中生
杨志豪
张庆成
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Yiwu Qingyue Optoelectronic Technology Research Institute Co Ltd
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Yiwu Qingyue Optoelectronic Technology Research Institute Co Ltd
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Priority to CN202210408882.XA priority Critical patent/CN114816298A/en
Publication of CN114816298A publication Critical patent/CN114816298A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/602—Providing cryptographic facilities or services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0464—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload using hop-by-hop encryption, i.e. wherein an intermediate entity decrypts the information and re-encrypts it before forwarding it
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Software Systems (AREA)
  • Computing Systems (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The embodiment of the invention discloses a display device and a display method of the display device, wherein the display device comprises a display control chip and a display module, and the display control chip is connected with the display module; the display control chip is used for receiving external communication data, decrypting and verifying the external communication data, obtaining decrypted data after the verification is passed, encrypting the decrypted data according to an encryption protocol between the display control chip and the display module to obtain encrypted data, and sending the encrypted data to the display module; the display module is used for decrypting the encrypted data into the safety data and storing and displaying the safety data. The technical scheme of the embodiment of the invention can simplify the whole structure of the display device, reduce the size of the display device, is suitable for thinner and more miniaturized application and increases the data security.

Description

Display device and display method thereof
Technical Field
The embodiment of the invention relates to the technical field of communication verification, in particular to a display device and a display method of the display device.
Background
In the fields of payment, internet of things and the like with certain requirements on data security, when data display is needed generally, the data is usually decrypted by using a security decryption chip and then transmitted back to a main control chip, and then the data is transmitted to a display driving chip through an FPC for display. The external security decryption chip makes the whole system more complicated in size and structure, and the data transmission security cannot be guaranteed. Because the security decryption chips are independent and the data on the FPC are transparent, the data security problem exists.
In the traditional display scheme, because a data transmission link exists between a display control end and a display driving chip, a data potential safety hazard node exists, and the safety requirement of a payment hardware carrier cannot be met.
Disclosure of Invention
The invention provides a display device and a display method of the display device, which can simplify the whole structure of the display device, reduce the size of the display device, be suitable for thinner and more miniaturized application and increase the safety of data.
In a first aspect, an embodiment of the present invention provides a display device, where the display device includes a display control chip and a display module, where the display control chip is connected to the display module;
the display control chip is used for receiving external communication data, carrying out decryption verification on the external communication data, obtaining decrypted data after the verification is passed, carrying out encryption processing on the decrypted data according to an encryption protocol between the display control chip and the display module to obtain encrypted data, and sending the encrypted data to the display module;
the display module is used for decrypting the encrypted data into the safety data and storing and displaying the safety data.
Optionally, the display control chip includes an external communication module, a data processing module and a display driver interface, the external communication module is connected to the data processing module, and the data processing module is connected to the display driver interface; the external communication module is used for communicating with the outside, and the data processing module is used for encrypting and decrypting the external communication data; the display driving interface is used for driving the display module.
Optionally, the external communication module communicates with the outside by at least one of: NET, Bluetooth, NFC and WIFI.
Optionally, the external communication module includes an external communication interface and an external communication control unit;
the external communication interface is used for receiving external communication data and sending the received external communication data to the external communication control unit;
the external communication control unit is used for screening the received external communication data and sending the external communication data to the data processing module.
Optionally, the data processing module includes an interface transceiver unit, a data encryption/decryption processing unit, and a data storage area;
the interface transceiving unit is used for sending the received external communication data from the external communication module to the data encryption and decryption processing unit;
the data storage area is used for storing user identification code information;
the data encryption and decryption processing unit is used for carrying out decryption verification on the external communication data according to the user identification code information, obtaining decrypted data after the verification is passed, carrying out encryption processing on the decrypted data to obtain encrypted data, and sending the encrypted data to the data storage area and the display driving interface;
the data storage area is also used for storing the encrypted data;
the display driving interface is used for sending the encrypted data to the display module.
Optionally, the display module comprises a driving unit, a decoding unit, a display output storage area and a display unit;
the decoding unit is used for decrypting the encrypted data into security data and sending the security data to the display output storage area and the driving unit;
the display output storage area is used for storing the safety data;
the driving unit is used for driving the display unit to enable the display unit to display the safety data.
Optionally, the decoding unit and the driving unit are integrated in a driving chip of the display module.
Optionally, the display control chip further includes a clock management module and a power management module.
Optionally, the display driving interface is connected to the display module through an FPC.
In a second aspect, an embodiment of the present invention further provides a display method of a display device, where the method includes:
the display control chip receives external communication data, decrypts and verifies the external communication data, obtains decrypted data after verification is passed, encrypts the decrypted data according to an encryption protocol between the display control chip and the display module to obtain encrypted data, and sends the encrypted data to the display module;
and the display module decrypts the encrypted data into the safety data and stores and displays the safety data.
According to the technical scheme, the display control chip is used for decrypting and verifying the external communication data, the decrypted data is encrypted after the verification is passed to obtain encrypted data and the encrypted data is sent to the display module, and the display module decrypts the encrypted data into the safety data; the problem of there is data transmission safety in the external safe decryption chip of prior art is solved, integrate two chips of safe decryption chip and main control chip into a display control chip, and single chip just can realize all functions, simplifies display device's overall structure, and the reduction size is fit for more thin, more miniaturized application, through the cooperation that display control chip encrypted and display module decipher, has strengthened data transmission's security.
Drawings
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 4 is a display method of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, and referring to fig. 1, the embodiment of the present invention provides a display device, which includes a display control chip 10 and a display module 20, where the display control chip 10 is connected to the display module 20; the display control chip 10 is used for receiving external communication data, decrypting and verifying the external communication data, obtaining decrypted data after the verification is passed, encrypting the decrypted data according to an encryption protocol between the display module 20 to obtain encrypted data, and sending the encrypted data to the display module 20; the display module 20 is used for decrypting the encrypted data into the security data and storing and displaying the security data.
Specifically, firstly, a user can operate the mobile device to perform request communication, and the display module 20 performs user authentication on a received user request communication signal and preset authentication information; the preset verification information can be a pattern, characters or a digital verification code. The display control chip 10 has a communication function, and can communicate with the outside through WIFI or other modes, after the user verification passes, the display control chip 10 receives external communication data, and can decrypt and verify the received external communication data according to a preset rule, and obtain decrypted data after the verification passes. Because the encryption protocol of the display control chip 10 is matched with the decryption protocol of the display module 20, the display control chip 10 encrypts the decrypted data according to the encryption protocol with the display module 20 to obtain encrypted data, and sends the encrypted data to the display module 20; the driver IC in the display module 20 decrypts the encrypted data into the security data according to the decryption protocol corresponding to the encryption protocol of the display control chip 10, stores the security data, and displays the security data by using the fixed display screen or the detachable display screen.
In the prior art, a secure decryption chip is used for decrypting data, and then the decrypted data is transmitted back to a main control chip, and the main control chip transmits the decrypted data to a display driving chip for display. According to the technical scheme, the display control chip is used for decrypting and verifying the external communication data, the decrypted data is encrypted after the verification is passed to obtain encrypted data and the encrypted data is sent to the display module, and the display module decrypts the encrypted data into the safety data; the problem of there be data transmission safety in the external safe decryption chip of prior art is solved, integrate two chips of safe decryption chip and main control chip into a display control chip, and single chip just can realize all functions, simplifies display device's overall structure, and the reduced size is fit for more thin, more miniaturized application, through the cooperation that display control chip encrypted and display module group decipher, has strengthened data transmission's security.
Fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention, and referring to fig. 2, optionally, the display control chip 10 includes an external communication module 101, a data processing module 102, and a display driver interface 103, where the external communication module 101 is connected to the data processing module 102, and the data processing module 102 is connected to the display driver interface 103; the external communication module 101 is used for communicating with the outside, and the data processing module 102 is used for encrypting and decrypting external communication data; the display driving interface 103 is used for driving the display module 20.
Specifically, external communication module 101 communicates with the outside and receives external communication data, send for data processing module 102 after handling received external communication data, data processing module 102 carries out the decryption verification to external communication data, obtain the decrypted data after the verification passes, carry out encryption processing to the decrypted data and obtain the encrypted data, and send the encrypted data to display driver interface 103, display driver interface 103 can send the encrypted data to display module assembly 20, can also send drive signal and drive display module assembly 20, display module assembly 20 decrypts the encrypted data into safe data, and store and show safe data.
Optionally, the external communication module communicates with the outside by at least one of: NET, Bluetooth, NFC and WIFI.
The device communicating with the external communication module comprises a mobile phone, a tablet computer, a notebook computer and the like, short-range wireless communication is carried out between the external communication module and the external communication device in NET, Bluetooth, NFC and WIFI modes, and then external communication data are obtained.
Fig. 3 is a schematic structural diagram of another display device provided in an embodiment of the present invention, and referring to fig. 3, optionally, the external communication module 101 includes an external communication interface 1011 and an external communication control unit 1012;
the external communication interface 1011 is configured to receive external communication data and transmit the received external communication data to the external communication control unit 1012;
the external communication control unit 1011 is configured to perform filtering processing on the received external communication data and send the external communication data to the data processing module 102.
Specifically, after the user identity authentication is passed, the external communication interface 1011 starts to receive external communication data and send the data to the external communication control unit 1012, and the external communication control unit 1011 performs a screening process on the received external communication data according to a certain rule and finally sends the screened external communication data to the data processing module 102.
With continued reference to fig. 3, optionally, the data processing module 102 includes an interface transceiving unit 1021, a data encryption/decryption processing unit 1022, and a data storage area 1023;
the interface transceiving unit 1021 is configured to send the received external communication data from the external communication module 101 to the data encryption/decryption processing unit 1022;
the data storage area 1023 is used for storing user identification code information;
the data encryption and decryption processing unit 1022 is configured to perform decryption verification on the external communication data according to the user identification code information, obtain decrypted data after the verification is passed, perform encryption processing on the decrypted data to obtain encrypted data, and send the encrypted data to the data storage area 1023 and the display driving interface 103;
the data storage area 1023 is also used for storing encrypted data;
the display driving interface 103 is used for sending the encrypted data to the display module 20.
Specifically, the Subscriber Identity information may be a Mobile Equipment Identity (MEID) or an International Mobile Subscriber Identity (IMSI), where one code corresponds to one Subscriber. The interface transceiving unit 1021 sends the external communication data to the data encryption and decryption processing unit 1022, the data encryption and decryption processing unit 1022 verifies the external communication data and the user identification code information to determine whether the user exists, if so, the verification is passed, the decrypted data is obtained after the verification is passed, the decrypted data is encrypted according to the encryption protocol between the display module 20 to obtain encrypted data, and the encrypted data is sent to the data storage area 1023 for storage; the encrypted data can also be sent to the display driving interface 103, and the display driving interface 103 sends the encrypted data to the display module 20 and drives the display module 20.
With continued reference to fig. 3, optionally, the display module 20 includes a driving unit 201, a decoding unit 202, a display output storage area 203 and a display unit 204;
the decoding unit 202 is configured to decrypt the encrypted data into secure data and send the secure data to the display output storage area 203 and the driving unit 201;
the display output storage area 203 is used for storing security data;
the driving unit 201 is configured to drive the display unit 204, so that the display unit 204 displays the security data.
Specifically, the decoding unit 202 has a decoding function, decrypts encrypted data according to a decryption protocol with the display control chip 10 to obtain secure data, and sends the secure data to the display output storage area 203 for storage, and may also send the secure data to the driving unit 201, and when the secure data is to be displayed, the driving unit 201 drives the display unit 204 to enable the display unit 204 to display the secure data.
With continued reference to fig. 3, optionally, the decoding unit 202 and the driving unit 201 are integrated in a driving chip of the display module 20.
Wherein, with decoding unit 202 and drive unit 201 integrated in display module assembly 20's driver chip, reduced chip area, be favorable to display module assembly 20's miniaturization, and then be favorable to display device's miniaturization.
Optionally, the display control chip 10 further includes a clock management module 104 and a power management module 105.
The clock management module 104 may record real-time including time after the display control chip 10 is powered off, and after the display control chip 10 is powered on again, the clock management module 104 immediately updates the latest time. The power management module 105 is primarily responsible for the conversion, distribution, detection, and other management of power.
Optionally, the display driving interface is connected with the display module through an FPC.
Among them, the Flexible Printed Circuit (FPC) is a Flexible Printed Circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent characteristics. The high-density light-weight LED lamp has the characteristics of high wiring density, light weight, thin thickness and good bending property. The display driving interface is connected with the display module through the FPC, and sends the encrypted data to the display module to realize transmission of the encrypted data.
The embodiment of the invention also provides a display method of the display device, which comprises the following steps:
s310, the display control chip receives external communication data, carries out decryption verification on the external communication data, obtains decrypted data after the verification is passed, carries out encryption processing on the decrypted data according to an encryption protocol between the display module to obtain encrypted data, and sends the encrypted data to the display module.
S320, the display module decrypts the encrypted data into the safety data, and stores and displays the safety data.
The display method of the display device can be executed by the display device provided by any embodiment of the invention, and has the same beneficial effects as the display device.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. The display device is characterized by comprising a display control chip and a display module, wherein the display control chip is connected with the display module;
the display control chip is used for receiving external communication data, carrying out decryption verification on the external communication data, obtaining decrypted data after the verification is passed, carrying out encryption processing on the decrypted data according to an encryption protocol between the display control chip and the display module to obtain encrypted data, and sending the encrypted data to the display module;
the display module is used for decrypting the encrypted data into the safety data and storing and displaying the safety data.
2. The display device according to claim 1, wherein the display control chip comprises an external communication module, a data processing module and a display driver interface, the external communication module is connected with the data processing module, and the data processing module is connected with the display driver interface; the external communication module is used for communicating with the outside, and the data processing module is used for encrypting and decrypting the external communication data; the display driving interface is used for driving the display module.
3. The display device according to claim 2, wherein the external communication module communicates with the outside by at least one of: NET, Bluetooth, NFC and WIFI.
4. The display device according to claim 2, wherein the external communication module includes an external communication interface and an external communication control unit;
the external communication interface is used for receiving external communication data and sending the received external communication data to the external communication control unit;
the external communication control unit is used for screening the received external communication data and sending the external communication data to the data processing module.
5. The display device according to claim 2, wherein the data processing module comprises an interface transceiving unit, a data encryption/decryption processing unit and a data storage area;
the interface transceiving unit is used for sending the received external communication data from the external communication module to the data encryption and decryption processing unit;
the data storage area is used for storing user identification code information;
the data encryption and decryption processing unit is used for carrying out decryption verification on the external communication data according to the user identification code information, obtaining decrypted data after the verification is passed, carrying out encryption processing on the decrypted data to obtain encrypted data, and sending the encrypted data to the data storage area and the display driving interface;
the data storage area is also used for storing the encrypted data;
the display driving interface is used for sending the encrypted data to the display module.
6. The display device according to claim 2, wherein the display module comprises a driving unit, a decoding unit, a display output storage area and a display unit;
the decoding unit is used for decrypting the encrypted data into security data and sending the security data to the display output storage area and the driving unit;
the display output storage area is used for storing the safety data;
the driving unit is used for driving the display unit to enable the display unit to display the safety data.
7. The display device according to claim 6, wherein the decoding unit and the driving unit are integrated in a driving chip of the display module.
8. The display device according to claim 2, wherein the display control chip further comprises a clock management module and a power management module.
9. The display device according to claim 2, wherein the display driver interface is connected to the display module through an FPC.
10. A display method of a display device, comprising:
the display control chip receives external communication data, decrypts and verifies the external communication data, obtains decrypted data after verification is passed, encrypts the decrypted data according to an encryption protocol between the display control chip and the display module to obtain encrypted data, and sends the encrypted data to the display module;
and the display module decrypts the encrypted data into the safety data and stores and displays the safety data.
CN202210408882.XA 2022-04-19 2022-04-19 Display device and display method thereof Pending CN114816298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210408882.XA CN114816298A (en) 2022-04-19 2022-04-19 Display device and display method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210408882.XA CN114816298A (en) 2022-04-19 2022-04-19 Display device and display method thereof

Publications (1)

Publication Number Publication Date
CN114816298A true CN114816298A (en) 2022-07-29

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