CN117608460A - Display device and extended display identification data setting method - Google Patents

Display device and extended display identification data setting method Download PDF

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Publication number
CN117608460A
CN117608460A CN202310883371.8A CN202310883371A CN117608460A CN 117608460 A CN117608460 A CN 117608460A CN 202310883371 A CN202310883371 A CN 202310883371A CN 117608460 A CN117608460 A CN 117608460A
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CN
China
Prior art keywords
identification data
display
display identification
extended display
display device
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Pending
Application number
CN202310883371.8A
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Chinese (zh)
Inventor
卢平光
何营昊
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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Application filed by Hisense Visual Technology Co Ltd filed Critical Hisense Visual Technology Co Ltd
Priority to CN202310883371.8A priority Critical patent/CN117608460A/en
Publication of CN117608460A publication Critical patent/CN117608460A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
    • 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
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/451—Execution arrangements for user interfaces

Abstract

Some embodiments of the present application provide a display device and an extended display identification data setting method. When the connection of the external device is detected, the display device sets the extended display identification data as initial extended display identification data. After the user instructs to enhance the extended display identification data, the display device acquires the display parameters, generates enhanced extended display identification data according to the display parameters, and switches the extended display identification data to be the enhanced extended display identification data. The display device acquires media information parameters of the external device, and updates and sets the expansion display identification data based on the media information parameters. The display device can generate enhanced EDID according to the display parameters to display self-supported capability information, so that the external device sends high-quality media data, and the use experience of a user is improved. Meanwhile, the EDID can be updated and set according to media information parameters of the external device, so that the external device can read the EDID normally.

Description

Display device and extended display identification data setting method
Technical Field
The application relates to the technical field of display equipment, in particular to display equipment and an extended display identification data setting method.
Background
The display device is a terminal device capable of outputting specific display pictures, along with the rapid development of the display device, the functions of the display device are more and more abundant, the performance is more and more powerful, the bidirectional man-machine interaction function can be realized, and various functions such as video, entertainment and data are integrated, so that the user diversified and personalized requirements are met.
The display device can also be connected with the external device and receives the media data sent by the external device so as to play. For interaction with an external device, extended display identification data (Extended display identification data, EDID) is provided in the display device. EDID is a standard data format of the video electronics standards association (Video Electronics Standards Association, VESA) that contains some information of the display device, such as vendor information of the display device, supported display resolution, supported sound formats, and sound channels, etc. The external device may read the EDID data to determine the characteristics supported by the display device. According to the EDID data, the external device can generate corresponding media data, so that the media data are sent to the display device for playing.
However, EDID can claim limited information. For some capabilities supported by the display, such as the maximum resolution that the display can support or the game optimization related functions supported by the display, the EDID cannot declare, and the external device cannot learn the capability information of the display, so that the corresponding functions cannot be started, and the quality of media data transmitted to the display device is poor. At this time, the display device and the external device cannot exert optimal performance, and experience for users is poor.
Disclosure of Invention
The application provides a display device and an extended display identification data setting method, which are used for solving the problems that in the related art, EDID (electronic data interchange) cannot declare some capabilities supported by a display, so that external equipment cannot start corresponding functions, the quality of media data transmitted to the display device is poor, and the use experience of a user is poor.
In a first aspect, some embodiments of the present application provide a display apparatus including a display, an external device interface, and a controller. The external device interface is configured to be connected with an external device, and the external device is used for sending media information signals to the display device; the controller is configured to:
when detecting that the external device interface is connected with external equipment, setting the expansion display identification data of the display equipment as initial expansion display identification data;
responding to an instruction for enhancing the extended display identification data of the display device, acquiring display parameters, generating enhanced extended display identification data according to the display parameters, and switching the extended display identification data of the display device to be the enhanced extended display identification data;
and acquiring media information parameters of the external equipment, and updating and setting expansion display identification data of the display equipment based on the media information parameters.
In a second aspect, some embodiments of the present application provide an extended display identification data setting method, applied to a display device, the method including:
when detecting that the external device interface is connected with external equipment, setting the expansion display identification data of the display equipment as initial expansion display identification data;
responding to an instruction for enhancing the extended display identification data of the display device, acquiring display parameters, generating enhanced extended display identification data according to the display parameters, and switching the extended display identification data of the display device to be the enhanced extended display identification data;
and acquiring media information parameters of the external equipment, and updating and setting expansion display identification data of the display equipment based on the media information parameters.
According to the technical scheme, some embodiments of the application provide a display device and an extended display identification data setting method. When the connection of the external device is detected, the display device sets the extended display identification data as initial extended display identification data. After the user instructs to enhance the extended display identification data, the display device acquires the display parameters, generates enhanced extended display identification data according to the display parameters, and switches the extended display identification data to be the enhanced extended display identification data. The display device acquires media information parameters of the external device, and updates and sets the expansion display identification data based on the media information parameters. The display device can generate enhanced EDID according to the display parameters to display self-supported capability information, so that the external device sends high-quality media data, and the use experience of a user is improved. Meanwhile, the EDID can be updated and set according to media information parameters of the external device, so that the external device can read the EDID normally.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 illustrates a usage scenario of a display device according to some embodiments;
fig. 2 shows a hardware configuration block diagram of the control apparatus 100 according to some embodiments;
fig. 3 illustrates a hardware configuration block diagram of a display device 200 according to some embodiments;
FIG. 4 illustrates a software configuration diagram in a display device 200 according to some embodiments;
FIG. 5 illustrates a schematic diagram of an application panel in some embodiments;
FIG. 6 illustrates a schematic diagram of the connection of a display device and an external device in some embodiments;
FIG. 7 is a schematic diagram illustrating extended display of identification data adaptive switching mode confirmation information in some embodiments;
FIG. 8 illustrates an interactive flow diagram for components of a display device in some embodiments;
FIG. 9 illustrates a schematic diagram of a first extended display identification data in some embodiments;
FIG. 10 illustrates a schematic diagram of a first extended display identification data in some embodiments;
FIG. 11 is a schematic diagram illustrating a structure of first extended display identification data in some embodiments
FIG. 12 is a schematic diagram illustrating the structure of first extended display identification data in some embodiments;
fig. 13 illustrates a schematic diagram of an initial EDID and a first EDID in some embodiments;
FIG. 14 illustrates a schematic diagram of identifier bytes in some embodiments;
fig. 15 illustrates a schematic diagram of an initial EDID and a second EDID in some embodiments.
Detailed Description
For purposes of clarity and implementation of the present application, the following description will make clear and complete descriptions of exemplary implementations of the present application with reference to the accompanying drawings in which exemplary implementations of the present application are illustrated, it being apparent that the exemplary implementations described are only some, but not all, of the examples of the present application.
It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.
The terms "first," second, "" third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for limiting a particular order or sequence, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The display device provided in the embodiment of the application may have various implementation forms, for example, may be a television, an intelligent television, a laser projection device, a display (monitor), an electronic whiteboard (electronic bulletin board), an electronic desktop (electronic table), and the like. Fig. 1 and 2 are specific embodiments of a display device of the present application.
Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display device 200 through the smart device 300 or the control apparatus 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode. The user may control the display device 200 by inputting user instructions through keys on a remote control, voice input, control panel input, etc.
In some embodiments, a smart device 300 (e.g., mobile terminal, tablet, computer, notebook, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application running on a smart device.
In some embodiments, the display device may receive instructions not using the smart device or control device described above, but rather receive control of the user by touch or gesture, or the like.
In some embodiments, the display device 200 may also perform control in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received through a module configured inside the display device 200 device for acquiring voice commands, or the voice command control of the user may be received through a voice control device configured outside the display device 200 device.
In some embodiments, the display device 200 is also in data communication with a server 400. May be configured to allow the display device 200 to be communicatively coupled via a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.
Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 in accordance with an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction of a user and convert the operation instruction into an instruction recognizable and responsive to the display device 200, and function as an interaction between the user and the display device 200.
As shown in fig. 3, the display apparatus 200 includes at least one of a modem 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, and a user interface.
In some embodiments the controller includes a processor, a video processor, an audio processor, a graphics processor, RAM, ROM, a first interface for input/output to an nth interface.
The display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, a component for receiving an image signal from the controller output, displaying video content, image content, and a menu manipulation interface, and a user manipulation UI interface.
The display 260 may be a liquid crystal display, an OLED display, a projection device, or a projection screen.
The communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver. The display device 200 may establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.
A user interface, which may be used to receive control signals from the control device 100 (e.g., an infrared remote control, etc.).
The detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for capturing the intensity of ambient light; alternatively, the detector 230 includes an image collector such as a camera, which may be used to collect external environmental scenes, user attributes, or user interaction gestures, or alternatively, the detector 230 includes a sound collector such as a microphone, or the like, which is used to receive external sounds.
The external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, or the like. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.
The modem 210 receives broadcast television signals through a wired or wireless reception manner, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.
In some embodiments, the controller 250 and the modem 210 may be located in separate devices, i.e., the modem 210 may also be located in an external device to the main device in which the controller 250 is located, such as an external set-top box or the like.
The controller 250 controls the operation of the display device and responds to the user's operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments the controller includes at least one of a central processing unit (Central Processing Unit, CPU), video processor, audio processor, graphics processor (Graphics Processing Unit, GPU), RAM (Random Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces for input/output, a communication Bus (Bus), etc.
The user may input a user command through a Graphical User Interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through the sensor to receive the user input command.
A "user interface" is a media interface for interaction and exchange of information between an application or operating system and a user, which enables conversion between an internal form of information and a user-acceptable form. A commonly used presentation form of the user interface is a graphical user interface (Graphic User Interface, GUI), which refers to a user interface related to computer operations that is displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in a display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.
As shown in fig. 4, the system of the display device is divided into three layers, an application layer, a middleware layer, and a hardware layer, from top to bottom.
The application layer mainly comprises common applications on the television, and an application framework (Application Framework), wherein the common applications are mainly applications developed based on Browser, such as: HTML5 APPs; native applications (Native APPs);
the application framework (Application Framework) is a complete program model with all the basic functions required by standard application software, such as: file access, data exchange, and the interface for the use of these functions (toolbar, status column, menu, dialog box).
Native applications (Native APPs) may support online or offline, message pushing, or local resource access.
The middleware layer includes middleware such as various television protocols, multimedia protocols, and system components. The middleware can use basic services (functions) provided by the system software to connect various parts of the application system or different applications on the network, so that the purposes of resource sharing and function sharing can be achieved.
The hardware layer mainly comprises a HAL interface, hardware and a driver, wherein the HAL interface is a unified interface for all the television chips to be docked, and specific logic is realized by each chip. The driving mainly comprises: audio drive, display drive, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (e.g., fingerprint sensor, temperature sensor, pressure sensor, etc.), and power supply drive, etc.
The display device 200 may have various functions such as browsing web pages, playing media assets, entertainment games, projecting screens, etc., thereby providing a wide variety of services to users. The user may control the display device 200 to launch a related application program to thereby launch a corresponding function.
In some embodiments, the controller 250 may control the display 260 to display a user interface when the user controls the display device 200 to power on. The user interface may be a specific target image, for example, various media materials obtained from a network signal source, including video, pictures and the like. The user interface may also be some UI interface of the display device 200, such as a system recommendation page or the like.
In some embodiments, a "My applications" control may be included in the user interface. The user may trigger entry into the corresponding application panel by clicking on the My application control to enter a display instruction for the application panel page. It should be noted that, the user may also input the selection operation of the function control in other manners to trigger entering into the application panel. For example, control is entered into the application panel page using a voice control function, a search function, or the like.
A variety of applications may be installed in the display device 200 to implement different functions for use by a user. The user can view an application program that the display device 200 has installed, i.e., functions supported by the display device 200, through the application panel. The user may select one of the applications and open it to implement the functionality of the application. It should be noted that, the application installed in the display device 200 may be a system application or a third party application. Fig. 5 shows a schematic diagram of an application panel in some embodiments. As shown in fig. 5, the application panel includes three controls, namely "web media", "cable tv", and "game". Wherein the user may search for web assets for viewing by clicking on the "web assets" control, using the display device 200. The user may click on the "cable" control to view some of the media channels, including various media programs offered by the cable provider, using display device 200. The user may click on the "game" control to initiate an installed game program for play using the display device 200.
In some embodiments, the display apparatus 200 is further provided with an external device interface 240, where the external device interface 240 is used to connect to an external device, and the external device may be a media device, such as a game device, to implement connection of the display apparatus 200 to the external device. The display device 200 and the external device which establish communication connection are respectively used as a receiving end (Sink end) and a transmitting end (source end), and the external device can perform a data transmission process through the external device interface 240 and the display device 200 to transmit media information signals to the display device 200. For example, in the course of using the game device by the user, it is possible to output video data and audio data in real time for the game process and transmit the video data and audio data to the display device 200 to output the video data and audio data as image pictures and sounds through the display device 200. At this time, the game device serves as a transmitting end, and the display device 200 serves as a receiving end.
The display device 200 and the external device are provided with data interfaces with the same interface specifications and functions. Fig. 6 illustrates a schematic diagram of the connection of the display device 200 and an external device in some embodiments. As shown in fig. 6, HDMI (High Definition Multimedia Interface, high-definition multimedia interface) is provided on both the display device 200 and the external device. The user may insert two ends of the HDMI interface data line on the display device 200 and the external device, respectively, and set the signal source of the display device 200 as the HDMI interface after the external device and the display device 200 are started, thereby realizing data transmission between the display device 200 and the external device.
In order to realize communication connection between the display device 200 and the external device, other connection modes, such as DVI (Digital Visual Interface), VGA (Video Graphics Array), USB (Universal Serial Bus), etc., can be adopted between the display device 200 and the external device; and can also be wireless connection modes, such as wireless local area network, bluetooth connection, infrared connection and the like. Different communication connection modes can adopt different information transfer protocols, for example, when the connection is realized by adopting an HDMI interface, the HDMI transmission protocol can be adopted for data transmission.
After the display device 200 and the asset device are connected through HDMI, the asset device may transmit asset data to the display device 200. The display device 200 may perform decoding on the media data to obtain video data and audio data. The display device 200 may display video data in the display 260 and play audio data through a built-in audio player such as a speaker.
In some embodiments, the display device 200 may be connected to an external device, such as a host computer or a game device, through an HDMI interface. In the process of using the external device, the external device can output video data and audio data by running related programs. The video data and the audio data may be transmitted to the display device 200 through the HDMI protocol, and output through the display 260 and the speaker of the display device 200, playing video and audio of the external device. The external device may perform data transfer based on a specific standard after the display device 200 is connected, so that the display device 200 and the external device may establish mutual identification and establish a data transmission channel. For example, the display device 200 may establish a connection with an external device based on the extended display identification data (Extended Display Identification Data, EDID) and realize mutual identification. The extended display identification data is a standard data format of the video electronics standards association (Video Electronics Standards Association, VESA) that includes parameters relating to the display 260 and its capabilities, including, but not limited to: vendor information, maximum image size, color settings, vendor presets, limits of frequency ranges, display 260 name and serial number.
The external device may perform data transfer based on a specific standard after the display device 200 is connected, so that the display device 200 and the external device may establish mutual identification and establish a data transmission channel. For example, the display device 200 may be recognized by an external device based on EDID.
After the connection relationship between the display device 200 and the external device is established, data transmission between the display device 200 and the external device may be bidirectional, that is, the external device may send media data and other data related to audio/video output to the display device 200; meanwhile, the display device 200 may also send data to an external device, for example, send request data, feedback result data, and the like to the external device. Therefore, in addition to transferring media data between the display device 200 and the external device to complete the playing process, interactive control can be realized by transferring control instructions.
In some embodiments, when detecting that the external device is connected to the external apparatus, the display apparatus 200 may generate the extended display identification data EDID and inform the external apparatus to read the EDID information in order to perform data interaction with the external apparatus. After the external device reads the EDID information, corresponding media data may be generated and sent to the display device 200. It should be noted that, the EDID information mainly defines the image resolution supported by the display device 200, the supported sound format, the sound channel, the 3D information, and the like, and is aimed at telling the external device the characteristics supported by the display device 200, so that the external device outputs the audio and video data supported by the display device 200 according to these characteristics, otherwise, the audio and video data output by the external device is not supported by the display device 200, and the display device 200 cannot normally play the audio and video data. According to the EDID data, the external device may generate corresponding media data, so as to send the media data to the display device 200 for playing.
In some embodiments, the display device 200 may use 256 bytes of EDID for declaring the relevant parameter information of the display device 200. It should be noted that 256 bytes of EDID have limited information that can be stored, resulting in limited parameter information of the display device 200 that can be declared. For some capability information supported by display 260, the EDID may not be fully declared. For example, for a display 260 supporting an output display resolution, there is an upper limit to the display resolution that can be declared by 256 bytes of EDID, and the maximum resolution that can be declared can be 1920×1080@120Hz. However, as display device 200 advances, the display resolution at which display 260 supports output increases, i.e., may exceed the declarative upper limit of EDID, e.g., the display resolution supported by display 260 may be 3840 x 2160@144hz, or even 3840 x 2160@165hz. As another example, the display 260 may support some game optimization related functions, which may be VRR (Variable Refresh Rate ) functions, and the 256 bytes of EDID may not declare that the display 260 supports these functions.
Limited to the declaration capability of EDID, the display device 200 cannot inform the external device of the capability information supported by the display 260. The external device cannot learn all the capability information of the display 260, and the external device recognizes that the capability supported by the display 260 is the parameter data stored in the EDID, so that the data with poor quality can be generated when the media data is generated. At this time, the external device may be able to output higher quality media data, but the output capability is reduced due to the EDID of the display device 200, so that the display device 200 and the external device cannot exert the optimal performance, and the experience of the user is poor.
To solve the above-described problem, the display device 200 provided in the embodiment of the present application may have an extended display identification data adaptive switching function. In view of the limited ability to expand the display identification data EDID claim information, the user may instruct to augment the expanded display identification data. The display device 200 may generate enhanced extended display identification data according to the internal parameter condition, and make the external device read, so that the external device generates high-quality media data. The display device 200 can also update the extended display identification data by itself according to the information fed back by the external device, so that the external device can read the extended display identification data normally.
In some embodiments, the display device 200 may be provided with an extended display identification data adaptive switching mode. When the display apparatus 200 enters the extended display identification data adaptive switching mode, the display apparatus 200 may turn on the extended display identification data adaptive switching function.
The user can transmit the extended display identification data adaptive switching mode instruction to the display device 200 by operating a designated key of the remote controller. And pre-binding the corresponding relation between the expansion display identification data self-adaptive switching mode instruction and the remote controller key in the actual application process. An extended display identification data adaptive switching mode option may also be set in the system UI interface of the display device 200, and when the user clicks the option, the display device 200 may be controlled to enter or exit the extended display identification data adaptive switching mode.
In some embodiments, to prevent the user from false triggering the extended display identification data adaptive switching mode, when the controller 250 receives the extended display identification data adaptive switching mode instruction, the display 260 may be controlled to display extended display identification data adaptive switching mode confirmation information, so that the user performs a secondary confirmation as to whether to control the display device 200 to enter the extended display identification data adaptive switching mode. Fig. 7 is a schematic diagram illustrating extended display of identification data adaptive switching mode confirmation information in some embodiments.
FIG. 8 illustrates an interactive flow diagram of components of display device 200 in some embodiments, including the steps of:
s101, when detecting that an external device is connected to the external device interface, setting the expansion display identification data of the display device 200 as initial expansion display identification data;
s102, in response to an instruction for enhancing the extended display identification data of the display device 200, acquiring display 260 parameters, generating enhanced extended display identification data according to the display 260 parameters, and switching and setting the extended display identification data of the display device 200 as the enhanced extended display identification data;
S103, acquiring media information parameters of the external device, and updating and setting the expansion display identification data of the display device 200 based on the media information parameters.
In some embodiments, when detecting that the external device is connected to the external apparatus, in order to perform data interaction with the external apparatus, the display apparatus 200 may set the extended display identification data of the display apparatus 200 to the initial extended display identification data, so that the external apparatus reads the initial extended display identification data to transmit the media data.
The display device 200 may generate the initial extended display identification data EDID first. The initial extended display identification data in the embodiment of the present application may be 256 bytes of EDID, including two fields, which are a Base field Base Block and an initial extended field CTABlock, respectively, each field being 128 bytes.
Upon generating the initial extended display identification data EDID, the controller 250 may first acquire device information of the display device 200, which may include data such as an ID of the display device 200 and manufacturer information. The controller 250 may generate a base field according to the device information. The basic field may further include information such as a video parameter of the display device 200, where the video parameter is a relevant parameter when the display device 200 plays a video, for example, a display resolution, a color parameter, etc. that the display 260 supports output.
The controller 250 may generate the base field according to the device information and the video parameters. The base field includes 128 bytes. Of these, 00H-07H bytes, representing the header of EDID data, is also the start flag of the base field, and these 8 bytes are fixed, which is equal to 0x00 FFFFFFFFFFFFFF;
08H-09H bytes, representing the ID or name of the manufacturer;
0AH-0BH bytes, representing the product ID;
0CH-0FH bytes, representing the serial number of the production line;
10H-11H bytes, representing production time;
12H-13H bytes, representing a version number, e.g., 1.3 is denoted by 01, 03;
14H bytes, representing the type of video input signal, whether digital or analog;
15H bytes representing the maximum horizontal size;
16H bytes, representing the maximum vertical dimension;
17H bytes representing a version showing the transmission characteristics, i.e. Gamma, such as 2.20;
18 bytes representing HDPMS and supported attributes, such as display type is RGB;
19H-22H bytes, representing chrominance information;
23H bytes representing the underlying timing supported Table 1, such as 640x480@60HZ (IBM, VGA), 800x600@
60HZ(VESA)；
24H bytes, representing supported base timing Table 2, such as 1024x768@60HZ (VESA);
25H bytes representing timing information reserved by the manufacturer;
26H-35H bytes representing a standard timing table supported;
36H-47H bytes, representing detailed information description 1 of timing, this segment is a more detailed description of timing, such as horizontal, vertical image size, whether refresh mode is interlaced or progressive, etc.;
48H-59H bytes, representing detailed information description 2 of timing;
5AH-6BH bytes representing the detailed information description 3 of timing;
6CH-7DH bytes representing detailed information description 4 of timing, the four segments being used to describe detailed information of different timings, description 1 must be present, others may be null;
7EH bytes, representing the flag bit of the extension part, if 0, there is no extension part, and if 1, there is an extension part at the back;
7FH bytes, representing the checkSum check bits, are used to check if the data has been illegally altered or has transmission errors, and are the end flags of the base field.
In some embodiments, since the base field has only 128 bytes, there is limited information that can be stored, some extension information may also be obtained and the initial extension field generated from the extension information.
The controller 250 may acquire the audio play parameters of the display apparatus 200 and generate an initial extension field according to the audio play parameters. The controller 250 may also acquire mode information of the display device 200. The mode information refers to video and audio modes, such as analog or digital. The audio playing parameter is a relevant parameter when the display device 200 plays audio, and may include a sampling frequency of audio, a sampling depth of audio, format information of audio, and the like. The controller 250 may also obtain some other extension information, such as manufacturer information, etc.
The controller 250 may generate an initial extension field according to the extension information. The initial extension field may be a CTA Block, with CTA original name CEA (American Consumer electronics Association), and the initial extension field may be a CEA-861D extension Block. The initial extension field includes 128 bytes. The following extension information is included:
image and sound modes, such as analog or digital. Color mode, such as YCbCr (4:4:4), YCbCr (4:2:2). A brief timing description, here specifying some timing information that is not described within segment 1. Such as 640x480p@60HZ 4:3, etc. Short descriptions of sound such as PCM (2 channels, 32khz,44.1hz,48hz,16bit,20bit,24 bit), AC-3, dolby digital+ (6 channels, 32khz,44.1khz,48khz, maximum bit rate 640 kbps), horn (left and right channels). VSDB: manufacturer specific information, such as CEC physical address, 3D information, deep color information, etc. CheckSum check bit.
The following table shows the structure of the initial extension field in some embodiments
In some embodiments, the controller 250 concatenates the initial extension field with the base field to obtain initial extension display identification data. The initial extension displays the field order in the identification data as a base field-the initial extension field. Each field is 128 bytes, so the initial extended display identification data is 256 bytes of data, which in the embodiment of the present application will be referred to simply as 256 bytes of EDID.
After acquiring the initial extended display identification data, the controller 250 may store the initial extended display identification data in a preset memory module, which may be a register RAM. The controller 250 may send an instruction to the external device to cause the external device to read the initial extended display identification data stored in the register. The external device may determine relevant information of the display device 200, including video parameters and audio parameters, such as display resolution that the display 260 supports for output, based on the initial extended display identification data. The external device may generate corresponding media data, including audio and video data, according to the information, and send the media data to the display device 200. The display device 200 may play the media data transmitted from the external device.
In some embodiments, the user may instruct the display device 200 to enhance the extended display identification data, for example, input an instruction to enhance the extended display identification data to the display device 200, considering that the information of the initial extended display identification data declaration is limited. In response to this instruction, the controller 250 may generate new extended display identification data, referred to as enhanced extended display identification data in the present embodiment, from the parameter information not declared in the 256-byte EDID. The enhanced extended display identification data may be 512 bytes of EDID.
The controller 250 may first acquire the display 260 parameters and may generate enhanced extended display identification data according to the display 260 parameters and switch setting the extended display identification data of the display device 200 to the enhanced extended display identification data.
In some embodiments, the display 260 parameters include resolution parameters and functional parameters of the display 260.
Wherein the resolution parameter may be a physical resolution parameter. There will be a fixed physical resolution for the display 260. The physical resolution represents the maximum display resolution that the display 260 can output. For example, for a display 260 having a resolution of 3840×2160@144hz, the display 260 has a physical resolution of 3840×2160@144hz, and the display 260 is capable of outputting a display having a maximum resolution of 3840×2160 and a maximum refresh frame rate of 144. At the same time, the display 260 may also output images at other resolutions below 3840×2160@144hz, such as 1920×1080@60 hz. The controller 250 may control the display 260 to output images of different resolutions within the physical resolution.
The function parameters refer to parameters corresponding to various functions supported by the display 260, such as game optimization-related functions. In consideration of the media data sent by the external device, in the embodiment of the present application, various functions supported by the display 260 are divided in advance, including a first function and a second function. Among other things, some of the functions supported by the display 260 may be preset, including a VRR (Variable Refresh Rate ) function, a FreeSync (display variable frequency) function, and a Dolby Vision function, referred to as a first function. VRR and FreeSYNC can effectively solve the phenomenon of picture tearing or clamping, and Dolby Vision can improve the image effect by improving brightness and expanding dynamic range.
For functions other than the preset functions supported by the display 260, such as FVA (Fast VActive) functions, a second function is called.
The controller 250 may acquire the first and second functional parameters. The first function parameter is a function parameter corresponding to the first function of the display 260, and the second function parameter is a function parameter corresponding to the second function.
Considering that there are multiple versions of the HDMI interface, such as HDMI 2.0 and HDMI 2.1, the controller 250 may generate multiple enhanced extended display identification data. The enhanced extended display identification data applicable to HDMI 2.1 may be referred to as first extended display identification data, and the enhanced extended display identification data applicable to HDMI 2.0 may be referred to as second extended display identification data. The controller 250 may generate the first extended display identification data and the second extended display identification data, respectively, according to the display 260 parameters. Both EDIDs are 512 bytes of EDID, which may include four fields, each field being 128 bytes. 512 bytes of EDID may be derived from 256 bytes of EDID extension. The controller 250 may perform expansion processing on the initial expanded display identification data to obtain enhanced expanded display identification data.
In some embodiments, the first extended display identification data may include four 128-byte fields, a base field, a first extended field, a second extended field, and a third extended field, respectively. Here, since the Base field is used to declare the device information of the display device 200, the Base field of the first extended display identification data may directly employ the Base field in EDID of 256 bytes, i.e., base Block. The first and second extension fields may be CTABlock and the third extension field may be DisplayID EXT Block.
The controller 250 may modify the initial extension field in the 256-byte EDID to generate the first extension field. The controller 250 may write the first function parameter into the initial extension field to obtain the first extension field. The first extension field may state parameter information corresponding to a first function supported by the display 260. The first function parameters include a VRR function parameter, a Freesync function parameter, and a Dolby Vision function parameter.
Fig. 9 is a schematic diagram illustrating a structure of first extended display identification data in some embodiments. As shown in fig. 9, VRR function parameters may be written in the "Vendor Specific HDMI Forum" data block of the initial extension field to declare VRR function conditions supported by the display 260.
Fig. 10 is a schematic diagram illustrating a structure of first extended display identification data in some embodiments. As shown in fig. 10, the FreeSync function parameters can be written in the "Vendor Specific General" data block of the initial extension field to declare the FreeSync function that is supported by the display 260.
Fig. 11 is a schematic diagram illustrating a structure of first extended display identification data in some embodiments. As shown in fig. 11, dolby Vision function parameters may be written in the "Dolby Vendor Specific Video" data block of the initial extension field to declare Dolby Vision function conditions supported by the display 260.
The controller 250 may write parameters corresponding to the first function supported by the display 260 into the initial extension field, and the first function not supported does not need to write the function parameters.
The first extension field contains the function parameters of vrr\freeync\dolby vision, and can also be used to determine whether the external device can normally parse the EDID. After the external device correctly analyzes the support statement from the EDID of the display device 200, the corresponding function is automatically started, and the display device 200 can determine whether the external device can analyze the current EDID by determining whether the external device enables the VRR and other functions.
In some embodiments, the controller 250 may also add field description information when generating the first extension field.
Fig. 12 is a schematic diagram illustrating a structure of first extended display identification data in some embodiments. As shown in fig. 12, 0xE2, 0x78 in the first extension field represents that the type of the field is "HDMI Forum EDID Extension Override", and 0x03 represents that the number of extension fields is three, that is, the extension fields are the first extension field, the second extension field, and the third extension field.
In some embodiments, the controller 250 may generate the second extension field according to the second function parameter. The second extension field may declare a second function supported by the display 260, such as FVA functions. The second extension field may also declare the resolution case supported by the display 260.
In some embodiments, the controller 250 may generate the third extension field according to the physical resolution parameter. Since there is an upper limit on the resolution that can be declared by the 256-byte EDID, the resolution that can be declared by the 256-byte EDID is referred to as the initial resolution in the embodiment of the present application. The third extension field may be utilized to declare other resolution scenarios supported by the display 260 between the initial resolution and the physical resolution. Wherein a resolution case lower than or equal to the initial resolution supported by the display 260 may be declared by the base field and a resolution case higher than the initial resolution may be declared by the third extension field.
The controller 250 may first generate a 128 byte blank field and obtain all the resolutions that the display 260 supports for output. Of all resolutions, the controller 250 may screen out resolutions between the initial resolution and the physical resolution that are greater than the initial resolution but less than or equal to the physical resolution. The controller 250 may fill these resolutions into blank fields to obtain a third extension field, which may also include some other extension information.
The first byte of the third extension field is a start flag bit, which may be 0X70. The second byte may be major-minor version number information of a third extension field, the third byte may be the number of valid bytes in the third extension field, the fourth byte may be the product type of the display device 200, and the fifth byte may be the number of subsequent extension fields.
The sixth byte to 126 th byte may be a resolution extension unit for characterizing a resolution condition where the display 260 supports an output higher than the initial resolution. In these resolutions, the detailed information of each resolution is represented by a timing, and each timing may occupy several bytes, including the specific resolution and the relevant parameter information corresponding to the resolution. Bytes that do not represent valid information may be padded with 0 s.
Byte 127 may be an end flag bit of the resolution extension unit, which is a CheckSum check bit.
The 128 th byte may be an end flag bit of the entire third extension field, which is a CheckSum check bit.
After acquiring the first extension field, the second extension field, and the third extension field, the controller 250 may sequentially combine the base field, the first extension field, the second extension field, and the third extension field, thereby obtaining the first extended display identification data. The field sequence in the first extended display identification data is: basic field-first extension field-second extension field-third extension field.
Fig. 13 illustrates a schematic diagram of initial EDID and first EDID in some embodiments. As shown in fig. 13, the initial EDID includes a Base field Base Block and an initial extension field CTABlock. The basic field does not need to be changed, and the first extension field is obtained after the initial extension field is modified. Meanwhile, a new CTA Block, i.e., a second extension field, and a third extension field DisplayID EXT Block are generated, resulting in a first EDID.
In some embodiments, the initial extended display identification data may be utilized to generate second extended display identification data.
The second extended display identification data may include four 128-byte fields, a base field, a fourth extended field, a first extended field, and a third extended field, respectively. The Base field is used to declare the device information of the display device 200, so the Base field of the second extended display identification data may directly use the Base field in the EDID of 256 bytes, i.e., base Block. The fourth extension field may be EXT-Block Map, the first extension field may be CTAB, and the third extension field may be DisplayID EXT Block.
The controller 250 may generate the fourth extension field based on a preset extension field order. The preset sequence of the extension fields is the sequence of all the extension fields in the second extension display identification data, and is a fourth extension field, namely the first extension field and the third extension field. Thus, the fourth extension field may characterize the order of all extension fields.
The controller 250 may first generate a 128-byte blank field and obtain the order of all extension fields. The controller 250 may fill the sequence of all the fields into the blank fields, for example, the number of each field and the sequence of each field are sequentially filled into the blank fields, resulting in the fourth extension field.
Considering that the fourth extension field may characterize the order of all extension fields, the order of the fourth extension field may be made the most forward of all extension fields, i.e. the fourth extension field is the first field of all extension fields, the fourth extension field may be continued after the base field. In some embodiments, the order of the fourth extension field is the most forward, so the order of the fourth extension field need not be represented, and only the order of all other extension fields need be represented.
The first byte of the fourth extension field is a start flag bit, which may be 0XF0. Starting from the fourth byte, all bytes up to 127 th byte, the order of all extension fields except the fourth extension field can be characterized.
A set of identifier bytes may be placed in the fourth extension field (Extension Block Tag Table). Fig. 14 illustrates a schematic diagram of identifier bytes in some embodiments. As shown in fig. 14, bytes are used to represent field types. 0X02 is the second byte in the fourth extension field, which is used to represent the first extension field CTABlock.0X70 is the third byte in the fourth extension field, which represents the third extension field DisplayID EXT Block.0X02 may represent that there are two sets of extension fields next, one for each subsequent byte, and bytes may be padded with 0's since no extension field is used for the representation. The last byte of the fourth extension field is an end flag bit, which may be a CheckSum check bit.
In the second extended display identification data, the first extended field and the third extended field may use the same field content as the first extended display identification data, which is not described herein.
The controller 250 may insert a fourth extension field between the base field and the first extension field, and concatenate the third extension field after the first extension field to generate the second extended display identification data.
Fig. 15 illustrates a schematic diagram of an initial EDID and a second EDID in some embodiments. As shown in fig. 15, the initial EDID includes a Base field Base Block and an initial extension field CTABlock. The base field does not need to be changed, and a fourth extension field EXT-Block Map is generated and inserted between the base field and the initial extension field. And modifying the initial extension field to obtain a first extension field. Meanwhile, a third extension field DisplayID EXT Block is generated, and the second EDID is obtained after continuing with the first extension field.
In some embodiments, the controller 250 may switch the extended display identification data of the display device 200 to be set to enhance the extended display identification data.
The controller 250 may store the enhanced extended display identification data in a preset memory module, such as a register RAM. The controller 250 may send instructions to the external device to cause the external device to read the enhanced extended display identification data stored in the register. The external device may determine relevant information of the display device 200, including video parameters and audio parameters, such as display resolution supported by the display 260, including physical resolution of the display 260, and functions supported by the display 260, based on the enhanced extended display identification data. The external device may generate corresponding media data, including video data of physical resolution or below, according to the information, and send the video data to the display device 200. The display device 200 may play the media data transmitted from the external device.
Note that, the display device 200 may store 512 bytes of EDID or 256 bytes of EDID in the register RAM, thereby declaring the display device 200 parameter information to the external device. However, due to the wide variety of external devices, each external device may have different capabilities for processing data, some external devices may successfully parse 512 bytes of EDID, but some external devices may only parse 256 bytes of EDID or a portion of 512 bytes of EDID. If the connected external device has the capability of resolving 512 bytes of EDID, but at this time, the EDID set by the display device 200 is 256 bytes of EDID, the parameter condition of the external declaration by the display device 200 may be weakened, so that neither the display device 200 nor the external device can exert the optimal performance. If the connected external device does not have the capability of resolving 512-byte EDID, but only has the capability of processing 256-byte EDID, but the EDID set by the display device 200 is 512-byte EDID, the external device cannot read the EDID of the display device 200, so that media data cannot be sent, and user experience is seriously affected. Therefore, the display device 200 needs to obtain the capability of the external device to parse EDID, and reasonably set its EDID.
In some embodiments, the controller 250 may first acquire the enhanced extended display identification data priority, which is used to characterize the priorities of the first and second extended display identification data, when the extended display identification data of the display device 200 is switched to be set as the enhanced extended display identification data.
The controller 250 may switch the extended display identification data of the display device 200 to the enhanced extended display identification data having the highest priority. In the embodiment of the present application, the first extended display identification data may be set to have a higher priority than the second extended display identification data. I.e., the extended display identification data of the display device 200 is switched to be set as the first extended display identification data.
In some embodiments, after setting the EDID, the controller 250 may check whether the external device is able to parse the EDID.
The controller 250 may send an extended display identification data read instruction to the external device. After receiving the instruction for reading the extended display identification data, the external device may read the current extended display identification data of the display device 200, and generate a media asset signal according to the extended display identification data.
It should be noted that, if the external device can normally parse the enhanced extended display identification data, the media information signal may be normally sent to the display device 200.
The controller 250 may parse the media asset signal sent by the external device, where the media asset signal includes media asset data and media asset signal parameters. The media information data is video data and audio data, and the media information parameters can represent the current parameter conditions of the external equipment, such as whether to start certain functions.
Note that, the first EDID is suitable for a device supporting HDMI 2.1, and therefore, the external device may not be able to parse the EDID. The controller 250 may determine whether the media asset signal can be normally parsed, so as to determine that the external device parses the first EDID.
If the media asset signal can be analyzed, the external device can analyze the first EDID. However, considering that the first EDID is 512 bytes, the external device may only parse the preceding fields thereof, for example, the base field, but may not parse all the fields. If the external device cannot parse all the fields, the controller 250 also needs to update the EDID of the setup display device 200. Therefore, the controller 250 may obtain media signal parameters of the external device to detect whether the external device can parse all the fields.
If the media asset signal cannot be parsed, the controller 250 may switch setting the extended display identification data of the display device 200 based on the enhanced extended display identification data priority and re-perform the step of transmitting the extended display identification data read instruction to the external device. In switching the setting EDID, the controller 250 may switch the extended display identification data of the display device 200 to the next enhanced extended display identification data in the priority order.
For example, when the media signal cannot be parsed, the controller 250 may switch the extended display identification data of the display device 200 to the second extended display identification data and control the external device to re-read the EDID. The external device may regenerate media information according to the new EDID and send it to the display device 200. The controller 250 may re-detect whether the media asset signal can be parsed, and if it is still not, the controller 250 may switch the extended display identification data of the display device 200 to be the initial EDID since there is no EDID having a priority lower than that of the second extended display identification data.
In some embodiments, the controller 250 may obtain enhanced extended display identification data parsing capability of the external device based on the media asset signal parameters. The enhancement expansion display identification data resolving capability is used for representing whether the external device can completely resolve the enhancement expansion display identification data resolving capability.
If the external device has enhanced extended display identification data parsing capability, the controller 250 may maintain the extended display identification data of the display device 200 as enhanced extended display identification data without requiring updating.
If the external device does not have enhanced extended display identification data parsing capability, the extended display identification data switch of the display device 200 is set to the initial extended display identification data.
In some embodiments, when obtaining the resolution capability of the enhanced extended display identification data of the external device, the controller 250 may obtain a preset function on state based on the media signal parameter, where the preset function on state is used to characterize whether the external device starts a preset function, including the on condition of the external device for each preset function, which may be the on condition of VRR, freeSync, and Dolby Vision.
The controller 250 may obtain the enhanced extended display identification data parsing capability of the external device based on the preset function on state.
If the preset function starting state is that the external device starts at least one preset function, the external device is determined to have the capability of enhancing the analysis of the expanded display identification data. That is, the external device starts any one function of VRR, freesync and Dolby Vision, which indicates that the external device has the capability of enhancing the analysis of the expanded display identification data.
If the preset function starting state is that the external device does not start the preset function, the external device is determined to not have the capability of enhancing the analysis of the expanded display identification data. I.e. the external device does not turn on the VRR, freesync and Dolby Vision, the external device is not provided with the capability of enhancing the analysis of the expanded display identification data.
The embodiment of the application also provides an extended display identification data setting method, which is applied to the display equipment and comprises the following steps:
step 101, when detecting that the external device interface is connected with an external device, setting the expansion display identification data of the display device as initial expansion display identification data;
102, responding to an instruction for enhancing the expansion display identification data of the display device, acquiring display parameters, generating the enhancement expansion display identification data according to the display parameters, and switching the expansion display identification data of the display device to be the enhancement expansion display identification data;
step 103, acquiring media information parameters of the external device, and updating and setting expansion display identification data of the display device based on the media information parameters.
In some embodiments, before setting the extended display identification data of the display device to the initial extended display identification data, further comprising:
and acquiring the equipment information of the display equipment, and generating a basic field according to the equipment information. And acquiring the audio playing parameters of the display equipment, and generating an initial extension field according to the audio playing parameters. And continuing the initial extension field after the basic field to obtain initial extension display identification data.
In some embodiments, the display parameters include a physical resolution parameter, a first functional parameter, and a second functional parameter. The first function parameter is a function parameter corresponding to a preset function supported by the display, and the second function parameter is a function parameter corresponding to a function other than the preset function supported by the display.
The enhanced extended display identification data includes first extended display identification data. Generating enhanced extended display identification data from the display parameters further comprises:
and writing the first function parameter into the initial extension field to obtain a first extension field. And generating a second extension field according to the second function parameter. A third extension field is generated from the physical resolution parameter. And combining the basic field, the first extension field, the second extension field and the third extension field in sequence to obtain the first extension display identification data.
In some embodiments, the enhanced extended display identification data further comprises second extended display identification data; the controller performs generating enhanced extended display identification data from the display parameters, further comprising:
and generating a fourth extension field based on a preset extension field sequence. The fourth extension field is inserted between the base field and the first extension field, and the third extension field is continued after the first extension field to generate second extension display identification data.
In some embodiments, the switching of the extended display identification data of the display device to enhance the extended display identification data further comprises:
and acquiring the priority of the enhanced extended display identification data, wherein the priority of the enhanced extended display identification data is used for representing the priority of the first extended display identification data and the second extended display identification data. The extended display identification data of the display device is switched to the enhanced extended display identification data with the highest priority.
In some embodiments, after the extended display identification data of the display device is switched to be set to enhance the extended display identification data, the method further includes:
and sending an extended display identification data reading instruction to the external device so that the external device reads the enhanced extended display identification data and generates a media resource signal according to the enhanced extended display identification data. And analyzing the media asset signal sent by the external equipment, wherein the media asset signal comprises media asset data and media asset signal parameters. And if the media information can be analyzed, executing the step of acquiring the media information parameters of the external equipment. If the media information can not be analyzed, the step of switching and setting the expansion display identification data of the display device based on the priority of the expansion display identification data and re-executing the step of sending the reading instruction of the expansion display identification data to the external device.
In some embodiments, updating the extended display identification data of the setup display device based on the media asset signal parameters includes:
and acquiring the enhancement expansion display identification data resolving capability of the external equipment based on the media information parameters. If the external device has the enhanced extended display identification data resolving capability, the extended display identification data of the display device is maintained to be the enhanced extended display identification data. And if the external device does not have the capability of enhancing the analysis of the extended display identification data, switching the extended display identification data of the display device to be the initial extended display identification data.
In some embodiments, the method further includes obtaining an enhanced extended display identification data parsing capability of the external device based on the media asset signal parameter, and further including:
and acquiring a preset function starting state based on the media information parameter, wherein the preset function starting state is used for representing whether the external equipment starts a preset function or not. And acquiring the resolution capability of the enhanced extended display identification data based on the preset function starting state.
In some embodiments, obtaining the enhanced extended display identification data parsing capability of the external device based on the preset function indication state further includes:
if the preset function starting state is that the external device starts at least one preset function, the external device is determined to have the capability of enhancing the analysis of the expanded display identification data. If the preset function starting state is that the external device does not start the preset function, the external device is determined to not have the capability of enhancing the analysis of the expanded display identification data.
The same and similar parts of the embodiments in this specification are referred to each other, and are not described herein.
It will be apparent to those skilled in the art that the techniques of embodiments of the present invention may be implemented in software plus a necessary general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied essentially or in parts contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method of the embodiments or some parts of the embodiments of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. A display device, characterized by comprising:
a display;
an external device interface configured to connect to an external device, the external device configured to send a media asset signal to a display device;
a controller configured to:
when detecting that the external device interface is connected with external equipment, setting the expansion display identification data of the display equipment as initial expansion display identification data;
responding to an instruction for enhancing the extended display identification data of the display device, acquiring display parameters, generating enhanced extended display identification data according to the display parameters, and switching the extended display identification data of the display device to be the enhanced extended display identification data;
And acquiring media information parameters of the external equipment, and updating and setting expansion display identification data of the display equipment based on the media information parameters.
2. The display device of claim 1, wherein before the controller performs setting the extended display identification data of the display device to the initial extended display identification data, the controller is further configured to:
acquiring equipment information of display equipment, and generating a basic field according to the equipment information;
acquiring audio playing parameters of display equipment, and generating an initial extension field according to the audio playing parameters;
and continuing the initial extension field after the basic field to obtain initial extension display identification data.
3. The display device of claim 2, wherein the display parameters include a physical resolution parameter, a first functional parameter, and a second functional parameter; the first functional parameters are functional parameters corresponding to preset functions supported by the display, and the second functional parameters are functional parameters corresponding to functions other than the preset functions supported by the display; the enhanced extended display identification data includes first extended display identification data;
The controller performs generating enhanced extended display identification data from the display parameters, and is further configured to:
writing the first function parameter into the initial extension field to obtain a first extension field;
generating a second extension field according to the second function parameter;
generating a third extension field according to the physical resolution parameter;
and combining the basic field, the first extension field, the second extension field and the third extension field in sequence to obtain first extension display identification data.
4. The display device of claim 3, wherein the enhanced extended display identification data further comprises second extended display identification data; the controller performs generating enhanced extended display identification data from the display parameters, and is further configured to:
generating a fourth extension field based on a preset extension field sequence;
inserting the fourth extension field between the base field and the first extension field, continuing the third extension field after the first extension field to generate second extended display identification data.
5. The display device of claim 4, wherein the controller performs setting of extended display identification data switching of the display device to the enhanced extended display identification data, further configured to:
Acquiring an enhanced extended display identification data priority, wherein the enhanced extended display identification data priority is used for characterizing the priorities of the first extended display identification data and the second extended display identification data;
the extended display identification data of the display device is switched to the enhanced extended display identification data with the highest priority.
6. The display device according to claim 5, wherein after the controller performs switching setting of the extended display identification data of the display device to the enhanced extended display identification data, the controller is further configured to:
transmitting an extended display identification data reading instruction to the external device so that the external device reads the enhanced extended display identification data and generates a media information signal according to the enhanced extended display identification data;
analyzing a media information signal sent by the external equipment, wherein the media information signal comprises media information data and media information parameters;
if the media information can be analyzed, executing the step of acquiring the media information parameters of the external equipment;
and if the media information signal cannot be analyzed, switching and setting the expansion display identification data of the display device based on the priority of the enhancement expansion display identification data, and re-executing the step of sending an expansion display identification data reading instruction to the external device.
7. The display device of claim 3, wherein the controller executing the updating of the extended display identification data of the setup display device based on the media asset signal parameter is further configured to:
acquiring the enhanced extended display identification data analysis capability of the external equipment based on the media information parameters;
if the external device has the enhanced extended display identification data resolving capability, maintaining the extended display identification data of the display device as the enhanced extended display identification data;
and if the external device does not have the capability of enhancing the analysis of the extended display identification data, switching the extended display identification data of the display device to be the initial extended display identification data.
8. The display device of claim 7, wherein the controller performs obtaining enhanced extended display identification data parsing capability of the external device based on the media asset signal parameters, further configured to:
acquiring a preset function starting state based on the media information parameter, wherein the preset function starting state is used for representing whether the external equipment starts the preset function or not;
and acquiring the enhanced extended display identification data resolving capability of the external device based on the preset function starting state.
9. The display device of claim 8, wherein the controller performs obtaining the enhanced extended display identification data parsing capability of the external device based on the preset function indication state, further configured to:
if the preset function starting state is that the external equipment starts at least one preset function, determining that the external equipment has the capability of enhancing the analysis of the expanded display identification data;
if the preset function starting state is that the external device does not start the preset function, determining that the external device does not have the capability of enhancing the analysis of the expanded display identification data.
10. An extended display identification data setting method applied to a display device, the method comprising:
when detecting that the external device interface is connected with external equipment, setting the expansion display identification data of the display equipment as initial expansion display identification data;
responding to an instruction for enhancing the extended display identification data of the display device, acquiring display parameters, generating enhanced extended display identification data according to the display parameters, and switching the extended display identification data of the display device to be the enhanced extended display identification data;
And acquiring media information parameters of the external equipment, and updating and setting expansion display identification data of the display equipment based on the media information parameters.
CN202310883371.8A 2023-07-18 2023-07-18 Display device and extended display identification data setting method Pending CN117608460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310883371.8A CN117608460A (en) 2023-07-18 2023-07-18 Display device and extended display identification data setting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310883371.8A CN117608460A (en) 2023-07-18 2023-07-18 Display device and extended display identification data setting method

Publications (1)

Publication Number Publication Date
CN117608460A true CN117608460A (en) 2024-02-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
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