WO2017076246A1 - Display parameter acquisition method, display device, terminal and storage medium - Google Patents

Display parameter acquisition method, display device, terminal and storage medium Download PDF

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Publication number
WO2017076246A1
WO2017076246A1 PCT/CN2016/103947 CN2016103947W WO2017076246A1 WO 2017076246 A1 WO2017076246 A1 WO 2017076246A1 CN 2016103947 W CN2016103947 W CN 2016103947W WO 2017076246 A1 WO2017076246 A1 WO 2017076246A1
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Prior art keywords
display device
information
audio
edid
display
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PCT/CN2016/103947
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French (fr)
Chinese (zh)
Inventor
万志军
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深圳市中兴微电子技术有限公司
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Publication of WO2017076246A1 publication Critical patent/WO2017076246A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display

Definitions

  • the present invention relates to display technologies, and in particular, to a display parameter acquisition method, a display device, a terminal, and a storage medium.
  • HDMI High Definition Multimedia Interface
  • EDID Extended Display Identification Data
  • the existing EDID information only shows which video formats and frame rates are supported by the display device.
  • the R&D personnel cannot know the audio support capability of the display device, and can not grasp the display effect when the developed terminal sends audio and video data to the display device, which will cause trouble for the entire development process and the use process.
  • the display device does not have the sound signal of receiving certain frequencies, the terminal cannot know the audio capability supported by the display device according to the existing EDID information, and when the display device cannot receive the processed audio signal, the display device cannot play correspondingly. The sound, at this time the display device can not accurately determine the root cause of the problem, can not give a good solution, resulting in extended construction period, user experience is very poor.
  • an embodiment of the present invention provides a display parameter acquisition method, a display device, a terminal, and a storage medium.
  • the set EDID information is transmitted to the terminal using a Display Data Channel (DDC).
  • DDC Display Data Channel
  • the setting the preset byte portion of the EDID information of the display device to the audio information supported by the display device includes:
  • N N bytes of the reserved portion in the EDID information of the display device to the audio information supported by the display device, where N is a positive integer.
  • the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
  • the audio and video data matching the EDID information is sent to the display device for playback.
  • the using the DDC to receive the EDID information sent by the display device includes:
  • the display device After the display device responds to the request signal, receiving EDID information sent by the display device.
  • the sending the audio and video data that matches the EDID information to the display device for playing includes:
  • Audio and video data matching the audio information and the video information is transmitted to the display device for playback.
  • An EDID unit configured to set a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
  • the sending unit is configured to send the set EDID information to the terminal by using a DDC.
  • the EDID unit is further configured to set N bytes of the reserved portion of the EDID information of the display device to audio information supported by the display device, where N is a positive integer .
  • the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
  • a receiving unit configured to receive, by using a DDC, EDID information sent by the display device, where a preset byte portion in the EDID information is set as audio information supported by the display device;
  • a transmission unit configured to send audio and video data matching the EDID information to the display device for playing.
  • the terminal further includes:
  • a sending unit configured to send a request signal to the display device by using a DDC
  • the receiving unit is further configured to: after the display device responds to the request signal, receive EDID information sent by the display device.
  • the electronic device further includes:
  • the parsing unit is configured to parse the EDID information to obtain audio information and video information supported by the display device;
  • the transmission unit is further configured to send audio and video data that matches the audio information and the video information to the display device for playing.
  • the storage medium provided by the embodiment of the present invention stores a computer program for executing the above display parameter acquisition method.
  • a preset byte part in the EDID information of the display device is to be displayed.
  • the bits for example, bits 4 to 11 in the reserved portion, are set to the audio information supported by the display device.
  • the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
  • FIG. 1 is a schematic flowchart of a method for acquiring a display parameter according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for acquiring a display parameter according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the embodiments of the present invention aim to optimize the EDID information in the uncompressed digital video standard D version (CEA-861-D, Consumer Electronics Association-861-D) protocol introduced by the existing American Consumer Electronics Manufacturers Association, and mainly solve the problem.
  • CEA-861-D Consumer Electronics Association-861-D
  • the terminal After the terminal obtains the EDID information of the display device through the DDC, the terminal cannot obtain the problem that the display device has audio processing capability.
  • FIG. 1 is a schematic flowchart of a method for acquiring a display parameter according to a first embodiment of the present invention.
  • the method for obtaining a display parameter in the present example is applied to a display device.
  • the method for obtaining a display parameter includes the following steps:
  • Step 101 Set a preset byte portion in the EDID information of the display device to the display Indicates the audio information supported by the device.
  • the display device may be a display, a television, a projector, or the like.
  • the display device has an HDMI interface.
  • each HDMI interface retains an EDID information.
  • the EDID information is initialized by the system during the startup process, and more commonly, each HDMI interface has an electrical connection.
  • the EDID information is stored in an EEPROM (Electrically Erasable Programmable Read Only Memory) having a size of 256 bytes.
  • Terminals such as the Digital Versatile Disc (DVD) player, read the EDID information through the DDC of the HDMI interface when the HDMI is hot swapped.
  • DVD Digital Versatile Disc
  • the EDID information mainly defines the image resolution, the supported sound format, the sound channel, and the 3D information supported by the display device, and the purpose thereof is to inform the terminal of the characteristics supported by the display device, and let the terminal output a display.
  • the audio and video data supported by the device otherwise the audio and video data output by the terminal is not supported, and the display device cannot play the audio and video data normally.
  • the EDID information includes two parts, the basic EDID information has 128 bytes, and 128 bytes are extended EDID information, and the extended EDID information is not necessarily required.
  • the existing EDID information structure is shown in Table 1:
  • Byte represents a byte
  • Value represents a value
  • Description represents a description
  • Format represents a format.
  • the embodiment of the present invention adds the following information to the EDID information: the audio information supported by the display device; specifically, the sampling frequency of the audio, the sampling depth of the audio, and the format information of the audio. Specifically, N bytes of the reserved portion in the EDID information of the display device are set as audio information supported by the display device, where N is a positive integer.
  • Byte represents a byte
  • Value represents a value
  • Description represents a description
  • Format represents a format.
  • bit 4 to bit 11 of the reserved portion in the EDID information are used as valid information storage portions, and audio information is stored. Embodiments of the present invention do not require the addition of new storage space and hardware logic.
  • Step 102 Send the set EDID information to the terminal by using a DDC.
  • the terminal after obtaining the EDID information sent by the display device, the terminal can obtain the audio information and the video information supported by the display device according to the EDID information, and then send the corresponding audio and video data to the display device for playing.
  • the technical solution of the embodiment of the invention is simple and easy to implement, and the effect is obvious. The invention encounters uncertain items in the research and development process, shortens the research and development process, and improves the user experience.
  • FIG. 2 is a schematic flowchart of a method for acquiring a display parameter according to a second embodiment of the present invention.
  • the method for obtaining a display parameter in the present example is applied to a terminal.
  • the method for obtaining a display parameter includes the following steps:
  • Step 201 Receive, by using a DDC, EDID information sent by a display device, where a preset byte portion in the EDID information is set as audio information supported by the display device.
  • the terminal may be a host, a DVD player, or the like.
  • the audio information supported by the display device includes at least one of the following: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
  • the DDC is used to send a request signal to the display device; after the display device responds to the request signal, the EDID information sent by the display device is received.
  • Step 202 Send audio and video data matching the EDID information to the display device Ready to play.
  • the EDID information is parsed to obtain audio information and video information supported by the display device, and audio and video data matching the audio information and the video information is sent to the display device for playing.
  • FIG. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in FIG. 3, the display device includes:
  • the EDID unit 31 is configured to set a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
  • the sending unit 32 is configured to send the set EDID information to the terminal by using a DDC.
  • the EDID unit 31 is further configured to set N bytes of the reserved portion of the EDID information of the display device to audio information supported by the display device, where N is positive Integer.
  • the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
  • the implementation functions of the units in the display device shown in FIG. 3 can be understood by referring to the related description of the foregoing display parameter acquisition method.
  • the functions of the units in the display device shown in FIG. 3 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
  • each unit in the display device may be implemented by a Central Processing Unit (CPU), a Micro Processor Unit (MPU), or a digital device located in the display device.
  • CPU Central Processing Unit
  • MPU Micro Processor Unit
  • DSP signal processor
  • FPGA Field Programmable Gate Array
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 4, the terminal includes:
  • the receiving unit 41 is configured to receive, by using the DDC, EDID information sent by the display device, where a preset byte portion of the EDID information is set as audio information supported by the display device;
  • the transmitting unit 42 is configured to send audio and video data matching the EDID information to the display device for playing.
  • the terminal further includes:
  • the sending unit 43 is configured to send a request signal to the display device by using a DDC;
  • the receiving unit 41 is further configured to: after the display device responds to the request signal, receive EDID information sent by the display device.
  • the electronic device further includes:
  • the parsing unit 44 is configured to parse the EDID information to obtain audio information and video information supported by the display device.
  • the transmission unit 42 is further configured to send audio and video data that matches the audio information and the video information to the display device for playing.
  • the implementation functions of the units in the terminal shown in FIG. 4 can be understood by referring to the related description of the foregoing display parameter acquisition method.
  • the functions of the units in the terminal shown in FIG. 4 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
  • each unit in the terminal may be processed by a central processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), or a digital signal located in the terminal. (Digital Signal Processor, DSP), or Field Programmable Gate Array (FPGA) implementation.
  • CPU central processing unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • Embodiments of the Invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a software product.
  • the storage medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • the embodiment of the present invention further provides a storage medium, wherein a computer program is stored, and the computer program is used to execute the display parameter acquisition method of the embodiment of the present invention.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • a preset byte portion in the EDID information of the display device is set as the audio information supported by the display device.
  • the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.

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Abstract

Disclosed in the present invention are a display parameter acquisition method, display device, terminal and storage medium, the method comprising: setting a preset byte portion in EDID information of the display device as audio information supported by the display device; transmitting the set EDID information to the terminal by using a DDC.

Description

一种显示参数获取方法、显示设备、终端、存储介质Display parameter acquisition method, display device, terminal, storage medium 技术领域Technical field
本发明涉及显示技术，尤其涉及一种显示参数获取方法、显示设备、终端、存储介质。The present invention relates to display technologies, and in particular, to a display parameter acquisition method, a display device, a terminal, and a storage medium.
背景技术Background technique
目前的显示设备，例如显示器、电视机等都有高清晰度多媒体接口(HDMI，High Definition Multimedia Interface)，通常每个HDMI接口都对应一份扩展显示标识数据(EDID，Extended Display Identification Data)信息，现有的EDID信息只给出了显示设备支持哪些视频格式以及帧率。研发人员无法知道显示设备的音频支持能力，不能很好的把握所研发的终端对显示设备发送音视频数据时，会出现什么样的显示效果，这对整个研发过程及使用过程都会带来麻烦。当显示设备不具备接收某些频率的声音信号时，终端根据现有的EDID信息无法得知显示设备所支持的音频能力，发送了显示设备不能接收处理的音频信号时，显示设备播放不出相应的声音，此时显示设备不能准确地判断出问题的根源，无法给出很好地解决方案，导致工期延长，用户体验极差。Currently, display devices, such as displays and televisions, have a High Definition Multimedia Interface (HDMI). Usually, each HDMI interface corresponds to an Extended Display Identification Data (EDID). The existing EDID information only shows which video formats and frame rates are supported by the display device. The R&D personnel cannot know the audio support capability of the display device, and can not grasp the display effect when the developed terminal sends audio and video data to the display device, which will cause trouble for the entire development process and the use process. When the display device does not have the sound signal of receiving certain frequencies, the terminal cannot know the audio capability supported by the display device according to the existing EDID information, and when the display device cannot receive the processed audio signal, the display device cannot play correspondingly. The sound, at this time the display device can not accurately determine the root cause of the problem, can not give a good solution, resulting in extended construction period, user experience is very poor.
发明内容Summary of the invention
为解决上述技术问题，本发明实施例提供了一种显示参数获取方法、显示设备、终端、存储介质。To solve the above technical problem, an embodiment of the present invention provides a display parameter acquisition method, a display device, a terminal, and a storage medium.
本发明实施例提供的显示参数获取方法，包括：The display parameter obtaining method provided by the embodiment of the invention includes:
将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息； Setting a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
将所设置的EDID信息利用显示数据通道(DDC，Display Data Channel)发送至终端。The set EDID information is transmitted to the terminal using a Display Data Channel (DDC).
本发明实施例中，所述将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息，包括：In the embodiment of the present invention, the setting the preset byte portion of the EDID information of the display device to the audio information supported by the display device includes:
将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。Setting N bytes of the reserved portion in the EDID information of the display device to the audio information supported by the display device, where N is a positive integer.
本发明实施例中，所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。In the embodiment of the present invention, the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
本发明另一实施例提供的显示参数获取方法，包括：A display parameter obtaining method provided by another embodiment of the present invention includes:
利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息；Receiving, by the DDC, EDID information sent by the display device, where a preset byte portion in the EDID information is set as audio information supported by the display device;
将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放。The audio and video data matching the EDID information is sent to the display device for playback.
本发明实施例中，所述利用DDC接收显示设备发送的EDID信息，包括：In the embodiment of the present invention, the using the DDC to receive the EDID information sent by the display device includes:
利用DDC向所述显示设备发送请求信号；Sending a request signal to the display device by using a DDC;
当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。After the display device responds to the request signal, receiving EDID information sent by the display device.
本发明实施例中，所述将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放，包括：In the embodiment of the present invention, the sending the audio and video data that matches the EDID information to the display device for playing, includes:
对所述EDID信息进行解析，得到所述显示设备支持的音频信息和视频信息；Parsing the EDID information to obtain audio information and video information supported by the display device;
将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。Audio and video data matching the audio information and the video information is transmitted to the display device for playback.
本发明实施例提供的显示设备，包括： The display device provided by the embodiment of the invention includes:
EDID单元，配置为将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息；An EDID unit configured to set a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
发送单元，配置为将所设置的EDID信息利用DDC发送至终端。The sending unit is configured to send the set EDID information to the terminal by using a DDC.
本发明实施例中，所述EDID单元，还配置为将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。In the embodiment of the present invention, the EDID unit is further configured to set N bytes of the reserved portion of the EDID information of the display device to audio information supported by the display device, where N is a positive integer .
本发明实施例中，所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。In the embodiment of the present invention, the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
本发明实施例提供的终端，包括：The terminal provided by the embodiment of the present invention includes:
接收单元，配置为利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息；a receiving unit, configured to receive, by using a DDC, EDID information sent by the display device, where a preset byte portion in the EDID information is set as audio information supported by the display device;
传输单元，配置为将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放。And a transmission unit configured to send audio and video data matching the EDID information to the display device for playing.
本发明实施例中，所述终端还包括：In the embodiment of the present invention, the terminal further includes:
发送单元，配置为利用DDC向所述显示设备发送请求信号；a sending unit, configured to send a request signal to the display device by using a DDC;
所述接收单元，还配置为当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。The receiving unit is further configured to: after the display device responds to the request signal, receive EDID information sent by the display device.
本发明实施例中，所述电子设备还包括：In the embodiment of the present invention, the electronic device further includes:
解析单元，配置为对所述EDID信息进行解析，得到所述显示设备支持的音频信息和视频信息；The parsing unit is configured to parse the EDID information to obtain audio information and video information supported by the display device;
所述传输单元，还配置为将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。The transmission unit is further configured to send audio and video data that matches the audio information and the video information to the display device for playing.
本发明实施例提供的存储介质存储有计算机程序，该计算机程序用于执行上述显示参数获取方法。The storage medium provided by the embodiment of the present invention stores a computer program for executing the above display parameter acquisition method.
本发明实施例的技术方案中，将显示设备的EDID信息中的预设字节部 分，例如保留部分中的比特(bit)4至bit11，设置为所述显示设备支持的音频信息。所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。终端获取到显示设备发送的EDID信息后，能够根据EDID信息得到显示设备所支持的音频信息以及视频信息，进而可以将对应的音视频数据发送给显示设备进行播放。本发明实施例的技术方案简单易行，效果明显，减少研发过程中遇到不确定项，缩短研发流程，提升了用户的体验。In the technical solution of the embodiment of the present invention, a preset byte part in the EDID information of the display device is to be displayed. The bits, for example, bits 4 to 11 in the reserved portion, are set to the audio information supported by the display device. The audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio. After acquiring the EDID information sent by the display device, the terminal can obtain the audio information and the video information supported by the display device according to the EDID information, and then send the corresponding audio and video data to the display device for playing. The technical solution of the embodiment of the invention is simple and easy to implement, and the effect is obvious. The invention encounters uncertain items in the research and development process, shortens the research and development process, and improves the user experience.
附图说明DRAWINGS
图1为本发明实施例一的显示参数获取方法的流程示意图；1 is a schematic flowchart of a method for acquiring a display parameter according to Embodiment 1 of the present invention;
图2为本发明实施例二的显示参数获取方法的流程示意图；2 is a schematic flowchart of a method for acquiring a display parameter according to Embodiment 2 of the present invention;
图3为本发明实施例的显示设备的结构组成示意图；3 is a schematic structural diagram of a display device according to an embodiment of the present invention;
图4为本发明实施例的终端的结构组成示意图。FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
具体实施方式detailed description
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。The embodiments of the present invention are described in detail below with reference to the accompanying drawings.
本发明实施例旨在对现有的美国电子消费品制造商协会推出的未压缩数字视频标准D版本(CEA-861-D，Consumer Electronics Association-861-D)协议中的EDID信息进行优化，主要解决终端通过DDC获取显示设备的EDID信息后不能得到显示设备是否具有音频处理能力的问题。The embodiments of the present invention aim to optimize the EDID information in the uncompressed digital video standard D version (CEA-861-D, Consumer Electronics Association-861-D) protocol introduced by the existing American Consumer Electronics Manufacturers Association, and mainly solve the problem. After the terminal obtains the EDID information of the display device through the DDC, the terminal cannot obtain the problem that the display device has audio processing capability.
图1为本发明实施例一的显示参数获取方法的流程示意图，本示例中的显示参数获取方法应用于显示设备，如图1所示，所述显示参数获取方法包括以下步骤：1 is a schematic flowchart of a method for acquiring a display parameter according to a first embodiment of the present invention. The method for obtaining a display parameter in the present example is applied to a display device. As shown in FIG. 1 , the method for obtaining a display parameter includes the following steps:
步骤101：将显示设备的EDID信息中的预设字节部分，设置为所述显 示设备支持的音频信息。Step 101: Set a preset byte portion in the EDID information of the display device to the display Indicates the audio information supported by the device.
本发明实施例中，显示设备可以是显示器、电视机、投影仪等。In the embodiment of the present invention, the display device may be a display, a television, a projector, or the like.
本发明实施例中，显示设备具有HDMI接口，通常每个HDMI接口都保留有一份EDID信息，这个EDID信息以存在程序里面由系统启动过程中来初始化，更常见是每个HDMI接口有一个电可擦可编程只读存储器(EEPROM，Electrically Erasable Programmable Read Only Memory)来保存这份EDID信息，这个EEPROM有256字节(bytes)大小。终端，如数字通用光盘(DVD，Digital Versatile Disc)播放器在HDMI热插拔时，就会通过HDMI接口的DDC来读取EDID信息。In the embodiment of the present invention, the display device has an HDMI interface. Generally, each HDMI interface retains an EDID information. The EDID information is initialized by the system during the startup process, and more commonly, each HDMI interface has an electrical connection. The EDID information is stored in an EEPROM (Electrically Erasable Programmable Read Only Memory) having a size of 256 bytes. Terminals, such as the Digital Versatile Disc (DVD) player, read the EDID information through the DDC of the HDMI interface when the HDMI is hot swapped.
本发明实施例中，EDID信息里主要定义了显示设备所支持的图像分辨率、支持的声音格式、声音通道以及3D信息等，其目的是告诉终端显示设备所支持的特性，让终端输出一个显示设备所支持的音视频数据，否则终端输出的音视频数据不被支持，显示设备不能正常播放音视频数据。In the embodiment of the present invention, the EDID information mainly defines the image resolution, the supported sound format, the sound channel, and the 3D information supported by the display device, and the purpose thereof is to inform the terminal of the characteristics supported by the display device, and let the terminal output a display. The audio and video data supported by the device, otherwise the audio and video data output by the terminal is not supported, and the display device cannot play the audio and video data normally.
本发明实施例中，EDID信息包含两个部分，基本的EDID信息有128个字节，还有128字节为扩展的EDID信息，扩展的EDID信息不是必须有的。现有的EDID信息结构如表1所示：In the embodiment of the present invention, the EDID information includes two parts, the basic EDID information has 128 bytes, and 128 bytes are extended EDID information, and the extended EDID information is not necessarily required. The existing EDID information structure is shown in Table 1:
Figure PCTCN2016103947-appb-000001
Figure PCTCN2016103947-appb-000001
Figure PCTCN2016103947-appb-000002
Figure PCTCN2016103947-appb-000002
表1Table 1
其中，Byte表示字节，Value表示取值，Description表示描述，Format表示格式。Among them, Byte represents a byte, Value represents a value, Description represents a description, and Format represents a format.
本发明实施例在EDID信息中增加以下信息：显示设备支持的音频信息；具体地，音频的采样频率、音频的采样深度、音频的格式信息。具体地，将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。The embodiment of the present invention adds the following information to the EDID information: the audio information supported by the display device; specifically, the sampling frequency of the audio, the sampling depth of the audio, and the format information of the audio. Specifically, N bytes of the reserved portion in the EDID information of the display device are set as audio information supported by the display device, where N is a positive integer.
增加音频信息后的EDID信息结构如表2所示：The structure of the EDID information after adding audio information is shown in Table 2:
Figure PCTCN2016103947-appb-000003
Figure PCTCN2016103947-appb-000003
Figure PCTCN2016103947-appb-000004
Figure PCTCN2016103947-appb-000004
表2Table 2
其中，Byte表示字节，Value表示取值，Description表示描述，Format表示格式。表2中，将EDID信息中的保留(reserved)部分的bit4～bit11作为有效信息存储部分，存储音频信息。本发明实施例无需增加新的存储空间和硬件逻辑。Among them, Byte represents a byte, Value represents a value, Description represents a description, and Format represents a format. In Table 2, bit 4 to bit 11 of the reserved portion in the EDID information are used as valid information storage portions, and audio information is stored. Embodiments of the present invention do not require the addition of new storage space and hardware logic.
步骤102：将所设置的EDID信息利用DDC发送至终端。Step 102: Send the set EDID information to the terminal by using a DDC.
本发明实施例的技术方案，终端获取到显示设备发送的EDID信息后，能够根据EDID信息得到显示设备所支持的音频信息以及视频信息，进而可以将对应的音视频数据发送给显示设备进行播放。本发明实施例的技术方案简单易行，效果明显，减少研发过程中遇到不确定项，缩短研发流程，提升了用户的体验。In the technical solution of the embodiment of the present invention, after obtaining the EDID information sent by the display device, the terminal can obtain the audio information and the video information supported by the display device according to the EDID information, and then send the corresponding audio and video data to the display device for playing. The technical solution of the embodiment of the invention is simple and easy to implement, and the effect is obvious. The invention encounters uncertain items in the research and development process, shortens the research and development process, and improves the user experience.
图2为本发明实施例二的显示参数获取方法的流程示意图，本示例中的显示参数获取方法应用于终端，如图2所示，所述显示参数获取方法包括以下步骤：2 is a schematic flowchart of a method for acquiring a display parameter according to a second embodiment of the present invention. The method for obtaining a display parameter in the present example is applied to a terminal. As shown in FIG. 2, the method for obtaining a display parameter includes the following steps:
步骤201：利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息。Step 201: Receive, by using a DDC, EDID information sent by a display device, where a preset byte portion in the EDID information is set as audio information supported by the display device.
本发明实施例中，终端可以是主机、DVD播放器等。In the embodiment of the present invention, the terminal may be a host, a DVD player, or the like.
本发明实施例中，显示设备支持的音频信息至少包括以下之一：音频的采样频率、音频的采样深度、音频的格式信息。In the embodiment of the present invention, the audio information supported by the display device includes at least one of the following: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
显示设备将EDID信息中的预设字节部分设置为所述显示设备支持的音频信息可参照上述实施例，此处不再赘述。For the display device to set the preset byte portion in the EDID information to the audio information supported by the display device, refer to the foregoing embodiment, and details are not described herein again.
具体地，利用DDC向所述显示设备发送请求信号；当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。Specifically, the DDC is used to send a request signal to the display device; after the display device responds to the request signal, the EDID information sent by the display device is received.
步骤202：将与所述EDID信息相匹配的音视频数据发送至所述显示设 备进行播放。Step 202: Send audio and video data matching the EDID information to the display device Ready to play.
具体地，对所述EDID信息进行解析，得到所述显示设备支持的音频信息和视频信息；将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。Specifically, the EDID information is parsed to obtain audio information and video information supported by the display device, and audio and video data matching the audio information and the video information is sent to the display device for playing.
图3为本发明实施例的显示设备的结构组成示意图，如图3所示，所述显示设备包括：FIG. 3 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in FIG. 3, the display device includes:
EDID单元31，配置为将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息；The EDID unit 31 is configured to set a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
发送单元32，配置为将所设置的EDID信息利用DDC发送至终端。The sending unit 32 is configured to send the set EDID information to the terminal by using a DDC.
本发明实施例中，所述EDID单元31，还配置为将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。In the embodiment of the present invention, the EDID unit 31 is further configured to set N bytes of the reserved portion of the EDID information of the display device to audio information supported by the display device, where N is positive Integer.
本发明实施例中，所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。In the embodiment of the present invention, the audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio.
本领域技术人员应当理解，图3所示的显示设备中各单元的实现功能可参照前述显示参数获取方法的相关描述而理解。图3所示的显示设备中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。It should be understood by those skilled in the art that the implementation functions of the units in the display device shown in FIG. 3 can be understood by referring to the related description of the foregoing display parameter acquisition method. The functions of the units in the display device shown in FIG. 3 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
在实际应用中，所述显示设备中的各个单元所实现的功能，均可由位于显示设备中的中央处理器(Central Processing Unit，CPU)、或微处理器(Micro Processor Unit，MPU)、或数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。In practical applications, the functions implemented by each unit in the display device may be implemented by a Central Processing Unit (CPU), a Micro Processor Unit (MPU), or a digital device located in the display device. Implemented by a signal processor (DSP) or a Field Programmable Gate Array (FPGA).
图4为本发明实施例的终端的结构组成示意图，如图4所示，所述终端包括： FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 4, the terminal includes:
接收单元41，配置为利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息；The receiving unit 41 is configured to receive, by using the DDC, EDID information sent by the display device, where a preset byte portion of the EDID information is set as audio information supported by the display device;
传输单元42，配置为将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放。The transmitting unit 42 is configured to send audio and video data matching the EDID information to the display device for playing.
本发明实施例中，所述终端还包括：In the embodiment of the present invention, the terminal further includes:
发送单元43，配置为利用DDC向所述显示设备发送请求信号；The sending unit 43 is configured to send a request signal to the display device by using a DDC;
所述接收单元41，还配置为当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。The receiving unit 41 is further configured to: after the display device responds to the request signal, receive EDID information sent by the display device.
本发明实施例中，所述电子设备还包括：In the embodiment of the present invention, the electronic device further includes:
解析单元44，配置为对所述EDID信息进行解析，得到所述显示设备支持的音频信息和视频信息；The parsing unit 44 is configured to parse the EDID information to obtain audio information and video information supported by the display device.
所述传输单元42，还配置为将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。The transmission unit 42 is further configured to send audio and video data that matches the audio information and the video information to the display device for playing.
本领域技术人员应当理解，图4所示的终端中各单元的实现功能可参照前述显示参数获取方法的相关描述而理解。图4所示的终端中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。It should be understood by those skilled in the art that the implementation functions of the units in the terminal shown in FIG. 4 can be understood by referring to the related description of the foregoing display parameter acquisition method. The functions of the units in the terminal shown in FIG. 4 can be implemented by a program running on the processor, or can be realized by a specific logic circuit.
在实际应用中，所述终端中的各个单元所实现的功能，均可由位于终端中的中央处理器(Central Processing Unit，CPU)、或微处理器(Micro Processor Unit，MPU)、或数字信号处理器(Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。In practical applications, the functions implemented by each unit in the terminal may be processed by a central processing unit (CPU), a microprocessor (Micro Processor Unit, MPU), or a digital signal located in the terminal. (Digital Signal Processor, DSP), or Field Programmable Gate Array (FPGA) implementation.
本发明实施例上述设备或终端如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一 个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。Embodiments of the Invention The above device or terminal may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a software product. The storage medium includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
相应地，本发明实施例还提供一种存储介质，其中存储有计算机程序，该计算机程序用于执行本发明实施例的显示参数获取方法。Correspondingly, the embodiment of the present invention further provides a storage medium, wherein a computer program is stored, and the computer program is used to execute the display parameter acquisition method of the embodiment of the present invention.
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。The technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。In the several embodiments provided by the present invention, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局 限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not It is to be understood that those skilled in the art are susceptible to variations and substitutions within the scope of the present invention.
工业实用性Industrial applicability
本发明实施例的技术方案，将显示设备的EDID信息中的预设字节部分，例如保留部分中的比特(bit)4至bit11，设置为所述显示设备支持的音频信息。所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。终端获取到显示设备发送的EDID信息后，能够根据EDID信息得到显示设备所支持的音频信息以及视频信息，进而可以将对应的音视频数据发送给显示设备进行播放。本发明实施例的技术方案简单易行，效果明显，减少研发过程中遇到不确定项，缩短研发流程，提升了用户的体验。 In the technical solution of the embodiment of the present invention, a preset byte portion in the EDID information of the display device, for example, bits 4 to 11 in the reserved portion, is set as the audio information supported by the display device. The audio information supported by the display device includes at least one of the following information: a sampling frequency of the audio, a sampling depth of the audio, and format information of the audio. After acquiring the EDID information sent by the display device, the terminal can obtain the audio information and the video information supported by the display device according to the EDID information, and then send the corresponding audio and video data to the display device for playing. The technical solution of the embodiment of the invention is simple and easy to implement, and the effect is obvious. The invention encounters uncertain items in the research and development process, shortens the research and development process, and improves the user experience.

Claims (13)

  1. 一种显示参数获取方法，所述方法包括：A display parameter acquisition method, the method comprising:
    将显示设备的扩展显示标识数据EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息；Setting a preset byte portion in the extended display identification data EDID information of the display device as the audio information supported by the display device;
    将所设置的EDID信息利用显示数据通道DDC发送至终端。The set EDID information is transmitted to the terminal using the display data channel DDC.
  2. 根据权利要求1所述的显示参数获取方法，其中，所述将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息，包括：The display parameter obtaining method according to claim 1, wherein the setting a preset byte portion of the EDID information of the display device to the audio information supported by the display device comprises:
    将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。Setting N bytes of the reserved portion in the EDID information of the display device to the audio information supported by the display device, where N is a positive integer.
  3. 根据权利要求1或2所述的显示参数获取方法，其中，所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。The display parameter acquisition method according to claim 1 or 2, wherein the audio information supported by the display device comprises at least one of the following: a sampling frequency of audio, a sampling depth of audio, and format information of audio.
  4. 一种显示参数获取方法，所述方法包括：A display parameter acquisition method, the method comprising:
    利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息；Receiving, by the DDC, EDID information sent by the display device, where a preset byte portion in the EDID information is set as audio information supported by the display device;
    将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放。The audio and video data matching the EDID information is sent to the display device for playback.
  5. 根据权利要求4所述的显示参数获取方法，其中，所述利用DDC接收显示设备发送的EDID信息，包括：The display parameter obtaining method according to claim 4, wherein the receiving, by the DDC, the EDID information sent by the display device comprises:
    利用DDC向所述显示设备发送请求信号；Sending a request signal to the display device by using a DDC;
    当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。After the display device responds to the request signal, receiving EDID information sent by the display device.
  6. 根据权利要求4或5所述的显示参数获取方法，其中，所述将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放，包括： The display parameter obtaining method according to claim 4 or 5, wherein the transmitting the audio and video data matching the EDID information to the display device for playing comprises:
    对所述EDID信息进行解析，得到所述显示设备支持的音频信息和视频信息；Parsing the EDID information to obtain audio information and video information supported by the display device;
    将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。Audio and video data matching the audio information and the video information is transmitted to the display device for playback.
  7. 一种显示设备，所述显示设备包括：A display device, the display device comprising:
    EDID单元，配置为将显示设备的EDID信息中的预设字节部分，设置为所述显示设备支持的音频信息；An EDID unit configured to set a preset byte portion in the EDID information of the display device to the audio information supported by the display device;
    发送单元，配置为将所设置的EDID信息利用DDC发送至终端。The sending unit is configured to send the set EDID information to the terminal by using a DDC.
  8. 根据权利要求7所述的显示设备，其中，所述EDID单元，还配置为将所述显示设备的EDID信息中的保留部分的其中N个字节，设置为所述显示设备支持的音频信息，其中，N为正整数。The display device according to claim 7, wherein the EDID unit is further configured to set N of the reserved portions of the EDID information of the display device to audio information supported by the display device, Where N is a positive integer.
  9. 根据权利要求7或8所述的显示设备，其中，所述显示设备支持的音频信息至少包括以下信息之一：音频的采样频率、音频的采样深度、音频的格式信息。The display device according to claim 7 or 8, wherein the audio information supported by the display device includes at least one of the following: a sampling frequency of audio, a sampling depth of audio, and format information of audio.
  10. 一种终端，所述终端包括：A terminal, the terminal comprising:
    接收单元，配置为利用DDC接收显示设备发送的EDID信息，其中，所述EDID信息中的预设字节部分被设置为所述显示设备支持的音频信息；a receiving unit, configured to receive, by using a DDC, EDID information sent by the display device, where a preset byte portion in the EDID information is set as audio information supported by the display device;
    传输单元，配置为将与所述EDID信息相匹配的音视频数据发送至所述显示设备进行播放。And a transmission unit configured to send audio and video data matching the EDID information to the display device for playing.
  11. 根据权利要求10所述的终端，其中，所述终端还包括：The terminal of claim 10, wherein the terminal further comprises:
    发送单元，配置为利用DDC向所述显示设备发送请求信号；a sending unit, configured to send a request signal to the display device by using a DDC;
    所述接收单元，还配置为当所述显示设备对所述请求信号进行响应后，接收所述显示设备发送的EDID信息。The receiving unit is further configured to: after the display device responds to the request signal, receive EDID information sent by the display device.
  12. 根据权利要求10或11所述的终端，其中，所述电子设备还包括：The terminal according to claim 10 or 11, wherein the electronic device further comprises:
    解析单元，配置为对所述EDID信息进行解析，得到所述显示设备支持 的音频信息和视频信息；The parsing unit is configured to parse the EDID information to obtain the display device support Audio information and video information;
    所述传输单元，还配置为将与所述音频信息和视频信息相匹配的音视频数据发送至所述显示设备进行播放。The transmission unit is further configured to send audio and video data that matches the audio information and the video information to the display device for playing.
  13. 一种存储介质，所述存储介质中存储有计算机可执行指令，该计算机可执行指令配置为执行权利要求1-6任一项所述的显示参数获取方法。 A storage medium having stored therein computer executable instructions configured to perform the display parameter acquisition method of any of claims 1-6.
PCT/CN2016/103947 2015-11-04 2016-10-31 Display parameter acquisition method, display device, terminal and storage medium WO2017076246A1 (en)

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