CN115827527A - Display control method and device based on DP connector, electronic equipment and medium - Google Patents
Display control method and device based on DP connector, electronic equipment and medium Download PDFInfo
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Abstract
The invention provides a display control method and device based on a DP connector, an electronic device and a medium. The display control method based on the DP connector comprises the following steps: identifying a target interface of a display that is coupled to the DP connector. And determining a target data channel corresponding to the target interface according to the corresponding relation between the interface and the data channel. And connecting the target data channel with the display through the DP connector. And responding to the connection completion, and sending a target control signal to the display to control the display to display. The invention can enhance the compatibility of the DP interface, and further can realize the targeted effective control of the display without a special external converter, thereby being beneficial to improving the use experience of users.
Description
Technical Field
The invention relates to the field of computers, in particular to a display control method and device based on a DP connector, an electronic device and a medium.
Background
The Interface connected to the display in the electronic device includes a High Definition Multimedia Interface (HDMI) Interface and a DP Interface. The DP interface is a standard interface capable of digital video interface. The user can determine whether the interface to be connected is the HDMI interface or the DP interface according to the target interface of the display. However, when a user needs to connect two external HDMI interface displays, it is impossible to directly provide a control signal for the HDI interface display through the DP interface.
In the related art, in order to enable a display with an HDMI interface to be plugged into a DP interface for normal display, a DP signal provided by the DP interface needs to be converted into an HDMI signal by an external converter (e.g., a portable conversion adapter (Dongle)), so as to achieve the purpose of performing display control on the display screen.
However, the adoption of this method requires the user to carry the external converter, and if the external converter is not available, the use requirement of the user cannot be met.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the DP interface of the desktop computer in the prior art cannot directly perform display control on the display whose interface is the HDMI interface, thereby providing a display control method and apparatus, an electronic device and a medium based on the DP connector.
According to a first aspect, an embodiment of the present invention provides a display control method based on a DP connector, the method including:
identifying a target interface of a display accessed to the DP connector;
determining a target data channel corresponding to the target interface according to the corresponding relation between the interface and the data channel;
connecting the target data channel with the display through the DP connector;
and responding to the completion of the connection, and sending a target control signal to the display to control the display to display.
In this way, the compatibility of the DP interface can be enhanced, and further, the display of the display can be effectively controlled in a targeted manner without a special external converter, so that the user experience can be improved.
With reference to the first aspect, in a first embodiment of the first aspect, the connecting the target data channel with the display through the DP connector includes:
determining a designated control signal corresponding to the target data channel according to the corresponding relation between the data channel and the control signal;
and controlling the target data channel to be connected with the display through the DP connector by the appointed control signal.
With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect, the determining, according to a correspondence between data channels and control signals, a specific control signal corresponding to the target data channel includes:
if the target data channel is a first target data channel, determining that the designated control signal corresponding to the target data channel is a first control signal according to the corresponding relation between the data channel and the control signal;
and if the target data channel is a second target data channel, determining that the designated control signal corresponding to the target data channel is a second control signal according to the corresponding relation between the data channel and the control signal.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the first control signal is a designated control signal whose level state is in a first level state; the second control signal is a designated control signal with a level state in a second level state.
With reference to the second embodiment or the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the controlling the target data channel to be connected to the display through the DP connector includes:
converting a data channel connected with the DP connector into a first target data channel through a built-in data channel switching circuit so as to realize that the first target data channel is connected with the display;
the first target data channel is a data channel of other interfaces which are not DP interfaces.
With reference to the fourth embodiment of the first aspect, in a fifth embodiment of the first aspect, the data channel switching circuit is configured to perform one-to-one data transmission on the first target data channel and the display.
With reference to the second embodiment or the third embodiment of the first aspect, in a sixth embodiment of the first aspect, the controlling the target data channel to be connected to the display through the DP connector includes:
connecting the second targeted data channel directly with the display through the DP connector;
the second target data lane is a data lane connected to the DP connector.
According to a second aspect, an embodiment of the present invention further provides a display control apparatus based on a DP connector, the apparatus including:
the identification unit is used for identifying a target interface of a display accessed to the DP connector;
the first determining unit is used for determining a target data channel corresponding to the target interface according to the corresponding relation between the interface and the data channel;
the execution unit is used for connecting the target data channel with the display through the DP connector and providing a corresponding target control signal for the display;
and the sending unit is used for responding to the completion of the connection and sending a target control signal to the display so as to control the display to display.
According to a third aspect, the present invention further provides an electronic device, which includes a memory and a processor, where the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the DP connector based display control method according to any one of the first aspect and the optional embodiments thereof.
According to a fourth aspect, the embodiments of the present invention further provide a computer-readable storage medium storing computer instructions for causing a computer to execute the DP connector based display control method of the first aspect or any one of its optional embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a display control method based on a DP connector according to an exemplary embodiment.
Fig. 2 is a schematic diagram of a level selection circuit according to an exemplary embodiment.
Fig. 3 is a schematic circuit diagram of a DDC channel according to an exemplary embodiment.
Fig. 4 is a schematic circuit diagram of an AUX channel according to an exemplary embodiment.
Fig. 5 is a schematic circuit diagram of a DP connector according to an exemplary embodiment.
Fig. 6 is a block diagram of a structure of a display control apparatus based on a DP connector according to an exemplary embodiment.
Fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an exemplary embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the related art, in order to enable a display with an HDMI interface to be plugged into a DP interface for normal display, a DP signal provided by the DP interface needs to be converted into an HDMI signal by an external converter (e.g., a portable conversion adapter (Dongle)), so as to achieve the purpose of performing display control on the display screen.
However, the adoption of this method requires the user to carry the external converter, and if the external converter is not available, the use requirement of the user cannot be met.
In order to solve the foregoing problems, an embodiment of the present invention provides a display control method based on a DP connector, which is used in an electronic device, and it should be noted that an execution main body of the display control method may be a display control apparatus based on a DP connector, and the apparatus may be implemented in a software, hardware, or a combination of software and hardware to become a part or all of the electronic device, where the electronic device may be a terminal, a client, or a server, and the server may be a server or a server cluster composed of multiple servers, and the terminal in this embodiment of the present invention may be another intelligent hardware device such as a smart phone, a personal computer, a tablet computer, a wearable device, and an intelligent robot. In the following method embodiments, the execution subject is an electronic device as an example.
In the display control method based on the DP connector, provided by the invention, in the electronic equipment, a target interface of a display accessed into the DP connector is firstly identified, and then a target data channel corresponding to the target interface is determined according to the corresponding relation between the interface and the data channel. And connecting the target data channel with the display through the DP connector. The response connection is accomplished, independently for the display that inserts the DP connector provides correct target control signal, and then need not through peculiar external converter, alright in order to realize carrying out effective control to the demonstration of display to be favorable to promoting user's use and experience.
Fig. 1 is a flowchart of a display control method based on a DP connector according to an exemplary embodiment. As shown in fig. 1, the DP connector-based display control method includes the following steps S101 to S103.
In step S101, a target interface of a display accessing the DP connector is identified.
In the embodiment of the invention, when the display is plugged into the DP interface of the electronic equipment, the target interface of the display connected into the DP interface is identified so as to provide a correct target control signal for the display. The target interface includes, but is not limited to, a DP interface or an HDMI interface, and may be determined according to an actual interface of the display.
In step S102, a target data channel corresponding to the target interface is determined according to the correspondence between the interface and the data channel.
In the embodiment of the invention, in order to ensure that the display can be normally used, the target data channel corresponding to the target interface is determined according to the corresponding relationship between the interface and the data channel, so that the data transmission relationship can be established between the target data channel and the display. For example: if the target interface is an HDMI interface, the corresponding target Data Channel is a Display Data Channel (DDC). If the target interface is a DP interface, the corresponding target data Channel is an audio input Channel (AUX). The AUX channel is an independent bidirectional transmission auxiliary channel.
In step S103, the target data channel is connected to the display through the DP connector.
In step S104, in response to the connection completion, a target control signal is transmitted to the display to control the display to display.
In the embodiment of the invention, the response connection is completed, the target data channel representing the electronic equipment establishes a data transmission relation with the display, data interaction can be carried out, and a target control signal is further sent to the display to control the display to display. The target control signal is understood to be a control signal for controlling the display of the target interface. For example: if the target interface of the display is an HDMI interface, the corresponding target control signal may be a DDC signal. If the target interface of the display is an AUX interface, the corresponding target control signal may be an AUX signal.
Through above-mentioned embodiment, can strengthen the compatibility of DP connector, and then need not through peculiar external converter, alright in order to realize carrying out the effective control of pertinence to the demonstration of display to be favorable to promoting user's use and experience.
The following embodiment will explain a specific process of connecting the target data channel with the display through the DP connector.
In the embodiment of the invention, the target data channel can be controlled to be connected with the display through the DP connector in a data channel switching mode. Specifically, according to the corresponding relationship between the data channel and the control signal, the designated control signal corresponding to the target data channel is determined. Through appointed control signal control target data path pass through the DP connector and be connected with the display, and then need not to use external converter, alright with carry out the control of pertinence according to the target interface of display in electronic equipment inside to the practicality of reinforcing DP connector is favorable to promoting user's use and experiences. In one implementation scenario, the designated control signal controls the transmission of the designated control signal.
In an embodiment, if the target data channel is the first target data channel, the designated control signal corresponding to the target data channel is determined to be the first control signal according to the corresponding relationship between the data channel and the control signal. And determining the designated control signal corresponding to the target data channel as a second control signal according to the corresponding relation between the data channel and the control signal. And when the control target data channel is connected with the display, the targeted control can be carried out.
Preferably, the first control signal is a designated control signal whose level state is in a first level state, and the second control signal is a designated control signal whose level state is in a second level state, so as to improve the reusability of the control signals. For example: the prescribed control signal whose level state is at a high level may be taken as the first control signal, and the prescribed control signal whose level state is at a low level may be taken as the second control signal. In one example, the prescribed control signal may be generated by the DDC channel.
In another embodiment, when the control target data channel is connected to the display through the DP connector, the data channel connected to the DP connector may be converted into the first target data channel through the built-in data channel switching circuit, so as to connect the first target data channel to the display. The first target data channel is a data channel of other interfaces which are not DP interfaces. Specifically, when the target interface is another interface other than the DP interface, it is characterized that data transmission cannot be performed through the data channel connected to the DP connector, and the purpose of connecting the first target data channel to the display can be achieved only by switching the data channel. Therefore, in order to ensure that the display can normally display, the data channel connected with the DP connector is converted into the first target data channel through the data channel switching circuit, so that the first target data channel is connected with the display.
Preferably, the data channel switching circuit is used for one-to-one data transmission between the first target data channel and the display. It is to be understood that the data channel switching circuit is a passive converter.
In yet another embodiment, when the control target data channel is connected to the display through the DP connector, the second target data channel may be directly connected to the display through the DP connector. The second target data channel is a data channel connected to the DP connector. Specifically, when the target interface is a DP interface, the representation can be directly transmitted with a data channel connected to the DP connector, and then the data channel does not need to be switched, and it is sufficient to directly connect the second target data channel with the display through the DP connector.
In one implementation scenario, after detecting that a display is plugged into a DP interface, a target interface of the display is identified. And if the target interface is the DP interface, determining that the target data channel corresponding to the target interface is the AUX channel according to the corresponding relation between the interface and the data channel. And determining the designated control signal corresponding to the AUX channel as the designated control signal with the level state at the low level according to the corresponding relation between the data channel and the control signal. And sending a designated control signal with a low level state to the level selection circuit to control the AUX channel to be connected with the display through the DP connector, and further sending an AUX signal to the display to control the display to display.
And if the target interface is the HDMI, determining that the target data channel corresponding to the target interface is the DDC channel according to the corresponding relation between the interface and the data channel. And determining the appointed control signal corresponding to the DDC channel as the appointed control signal with the level state at high level according to the corresponding relation between the data channel and the control signal. And sending a designated control signal with a high level state to the level selection circuit, converting the data channel connected with the DP connector into a DDC channel through a built-in data channel switching circuit, connecting the DDC channel with the display through the DP connector, and sending a DDC signal to the display to control the display to display.
In another implementation scenario, a level selection circuit, a data channel switching circuit connected to the level selection circuit, and a DP connector may be included on a motherboard of an electronic device. The data channel switching circuit comprises an AUX channel and a DDC channel. In a default state, the AUX channel is a data channel connected to the DP connector.
Wherein the level selection circuit is used for generating a specified control signal of the DDC channel. And when the level state is in the high level designated control signal, controlling the data channel switching circuit to connect the DP connector with the AUX channel. When the level state is a prescribed control signal of a low level, the control data channel switching circuit switches the data channel connected to the DP connector to the DDC channel.
For example: the structure of the level selection circuit may be as shown in fig. 2. The control signal "DD3_ DDC _ AXU _ SEL" is input through the resistor R1641, and the specified control signal corresponding to the target data channel is determined according to the correspondence between the data channel and the control signal. A resistor R1642 and a transistor Q81 for outputting a designated control signal "DP _2 \ device _detect" of a low level to control the AUX channel to establish a connection with the DP connector. A resistor R1802 and a transistor Q158 for outputting a designated control signal 'HDMI _2 \ device _detect' of a high level to control the DDC channel to establish a connection with the DP connector.
The circuit structure of the DDC channel can be as shown in fig. 3. The "DDPC _ CTRLCLK" is a clock pin of the host, "DDPC _ CTRL _ DATA" is a DATA pin of the host, and the "DPD _ AUXP _ CN" and "DPD _ AUXN _ CN" are differential pins for connecting with the AUX channel. The circuit structure of the AUX channel can be as shown in fig. 4. The "DPD _ AUXP _ C" and the "DPD _ AUXN _ C" are respectively connected to the AUX channel. The circuit configuration of the DP connector is shown in fig. 5. Wherein "DPD _ HPD _ SINK" is used to receive handshake signals for interacting with the display. Since the circuit structure is a common structure in the art, detailed descriptions of the layout of the device are omitted.
Based on the same inventive concept, the invention also provides a display control device based on the DP connector.
Fig. 6 is a block diagram of a structure of a DP connector based display control apparatus according to an exemplary embodiment. As shown in fig. 6, the DP connector-based display control apparatus includes a recognition unit 601, a first determination unit 602, an execution unit 603, and a transmission unit 604.
An identification unit 601 for identifying a target interface of a display accessed to the DP connector;
a first determining unit 602, configured to determine, according to a correspondence between an interface and a data channel, a target data channel corresponding to a target interface;
an execution unit 603, configured to connect the target data channel with the display through the DP connector;
a sending unit 604, configured to send a target control signal to the display in response to the connection completion, so as to control the display to display.
In one embodiment, the execution unit 603 includes: the second determining unit is used for determining the appointed control signal corresponding to the target data channel according to the corresponding relation between the data channel and the control signal; and the control unit is used for controlling the target data channel to be connected with the display through the DP connector by a specified control signal.
In another embodiment, the second determination unit includes: the first signal determining unit is used for determining an appointed control signal corresponding to the target data channel as a first control signal according to the corresponding relation between the data channel and the control signal if the target data channel is a first target data channel; and the second signal determining unit is used for determining the appointed control signal corresponding to the target data channel as the second control signal according to the corresponding relation between the data channel and the control signal if the target data channel is the second target data channel.
In yet another embodiment, the first control signal is a designated control signal having a level state in a first level state; the second control signal is a designated control signal whose level state is in a second level state.
In yet another embodiment, the control unit includes: and the first control subunit is used for converting the data channel connected with the DP connector into a first target data channel through a built-in data channel switching circuit so as to realize the connection of the first target data channel with the display, wherein the first target data channel is a data channel of other interfaces which are not DP interfaces.
In yet another embodiment, the data channel switching circuit is configured to perform one-to-one data transmission for the first target data channel and the display.
In yet another embodiment, the control unit includes: a second control subunit, configured to directly connect a second target data channel to the display through the DP connector; the second target data lane is a data lane connected to the DP connector.
The specific limitations and advantageous effects of the display control device based on the DP connector can be referred to the limitations of the display control method based on the DP connector, and are not described herein again. The various modules described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent of a processor in the electronic device, or can be stored in a memory in the electronic device in a software form, so that the processor can call and execute operations corresponding to the modules.
Fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an exemplary embodiment. As shown in fig. 7, the apparatus includes one or more processors 710 and a storage 720, where the storage 720 includes a persistent memory, a volatile memory, and a hard disk, and one processor 710 is taken as an example in fig. 7. The apparatus may further include: an input device 730 and an output device 740.
The processor 710, the memory 720, the input device 730, and the output device 740 may be connected by a bus or other means, such as the bus connection in fig. 7.
The memory 720, serving as a non-transitory computer-readable storage medium, includes a persistent memory, a volatile memory, and a hard disk, and can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the service management method in the embodiment of the present application. The processor 710 executes various functional applications of the server and data processing by running non-transitory software programs, instructions, and modules stored in the memory 720, that is, implements any of the above-described DP connector-based display control methods.
The memory 720 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data used as needed or desired, and the like. Further, the memory 720 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 720 optionally includes memory located remotely from processor 710, which may be connected to a data processing device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 730 may receive input numeric or character information and generate key signal inputs related to user settings and function control. The output device 740 may include a display device such as a display screen.
One or more modules are stored in the memory 720 that, when executed by the one or more processors 710, perform the methods shown in fig. 1-5.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. Details of the technique not described in detail in the present embodiment may be specifically referred to the related description in the embodiments shown in fig. 1 to fig. 5.
Embodiments of the present invention further provide a non-transitory computer storage medium, where a computer-executable instruction is stored in the computer storage medium, and the computer-executable instruction may execute the authentication method in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A display control method based on a DP connector, characterized in that the method comprises:
identifying a target interface of a display accessed to the DP connector;
determining a target data channel corresponding to the target interface according to the corresponding relation between the interface and the data channel;
connecting the target data channel with the display through the DP connector;
and responding to the completion of the connection, and sending a target control signal to the display to control the display to display.
2. The method of claim 1, wherein said connecting said target data channel to said display via said DP connector comprises:
determining a designated control signal corresponding to the target data channel according to the corresponding relation between the data channel and the control signal;
and controlling the target data channel to be connected with the display through the DP connector by the specified control signal.
3. The method according to claim 2, wherein determining the designated control signal corresponding to the target data channel according to the correspondence between the data channel and the control signal comprises:
if the target data channel is a first target data channel, determining that the designated control signal corresponding to the target data channel is a first control signal according to the corresponding relation between the data channel and the control signal;
and if the target data channel is a second target data channel, determining that the designated control signal corresponding to the target data channel is a second control signal according to the corresponding relation between the data channel and the control signal.
4. The method of claim 3, wherein the first control signal is a designated control signal having a level state in a first level state; the second control signal is a designated control signal with a level state in a second level state.
5. The method of claim 3 or 4, wherein said controlling said destination data channel to connect to said display via said DP connector comprises:
converting a data channel connected with the DP connector into a first target data channel through a built-in data channel switching circuit so as to realize that the first target data channel is connected with the display;
the first target data channel is a data channel of other interfaces which are not DP interfaces.
6. The method of claim 5, wherein the data channel switching circuit is configured to perform one-to-one data transmission for the first target data channel and the display.
7. The method of claim 3 or 4, wherein the controlling the target data channel to connect with the display through the DP connector comprises:
connecting the second target data channel directly to the display through the DP connector;
the second target data lane is a data lane connected to the DP connector.
8. A DP connector based display control apparatus, characterized in that said apparatus comprises:
the identification unit is used for identifying a target interface of a display accessed to the DP connector;
the first determining unit is used for determining a target data channel corresponding to the target interface according to the corresponding relation between the interface and the data channel;
the execution unit is used for connecting the target data channel with the display through the DP connector;
and the sending unit is used for responding to the completion of the connection and sending a target control signal to the display so as to control the display to display.
9. An electronic device, comprising a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the DP connector based display control method according to any one of claims 1 to 7.
10. A computer-readable storage medium storing computer instructions for causing a computer to execute the DP connector based display control method according to any one of claims 1 to 7.
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| CN202211489159.5A CN115827527A (en) | 2022-11-25 | 2022-11-25 | Display control method and device based on DP connector, electronic equipment and medium |
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| CN202211489159.5A CN115827527A (en) | 2022-11-25 | 2022-11-25 | Display control method and device based on DP connector, electronic equipment and medium |
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