CN114765698A

CN114765698A - Display device and driving method

Info

Publication number: CN114765698A
Application number: CN202110028602.8A
Authority: CN
Inventors: 王昊; 吴燕丽; 卢平光
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2022-07-19
Anticipated expiration: 2041-01-11
Also published as: CN114765698B

Abstract

The invention discloses a display device and a driving method, wherein the display device comprises a display for displaying a user interface, an external device interface for data transmission with the external device, and a controller. The controller may receive a data signal input by the external device from the external device interface, and control the display to display the timing information user interface after receiving the data signal input by the external device from the external device interface, so that the display may implement a function of displaying the timing information user interface.

Description

Display device and driving method

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display device and a driving method thereof.

Background

With the continuous development of science and technology, the display technology is updated very quickly, and the display technology is developed from 2K to 4K and then from 4K to 8K. Taking 4K and 8K as examples, although 8K data signals are currently available, the more mature televisions on the market are typically 4K televisions. Since the display in a 4K television generally supports displaying 4K data signals, the controller generally supports up to decoding of the 4K data signals. Therefore, the 4K television is limited by the specifications of the controller and the display, and the problem of screen splash, screen blackness or no signal occurs when the 8K data signal is accessed, so that a user cannot watch a complete video picture, and the user experience is seriously influenced.

Disclosure of Invention

The display device in some embodiments of the present application may include:

a display configured to display a user interface;

an external device interface configured to perform data transmission with an external apparatus;

and the controller is configured to control the display to display a timing information user interface after receiving the data signal input by the external equipment from the external device interface.

Based on the embodiment, the display equipment can realize the display function of the timing information user interface.

In some exemplary embodiments, the controller includes: the device comprises a first control module and a second control module, wherein the first control module is configured to receive a data signal input by the external equipment from the external device interface and store dimming information corresponding to the data signal. The second control module is configured to acquire the dimming information stored in the first control module, and control the display to display a dimming information user interface based on the acquired dimming information and the dimming information corresponding to the set data format. Therefore, two modules can be opened up in the controller to realize the function of controlling the display to display the timing information user interface.

The display device in some embodiments of the present application may include:

a display configured to display a user interface;

a controller configured to:

when the external equipment is accessed, determining an access mode of the external equipment according to pre-stored port definition information;

when the access mode of the external equipment is determined to be a first access mode, controlling the display to display a timing information user interface based on stored timing information of a data signal input by the external equipment and received from the external device interface and the timing information corresponding to a set data format;

and when the access mode of the external equipment is determined to be the second access mode, controlling the display to display a timing information user interface based on the timing information of the data signal input by the external equipment received from the external device interface.

Based on the embodiment, the function of controlling the display to display the dimming information user interface can be realized through a plurality of access modes.

In some exemplary embodiments, the controller includes: the device comprises a first control module and a second control module, wherein the first control module is configured to receive a data signal input by the external equipment from the external device interface and store dimming information corresponding to the data signal when the access mode of the external equipment is determined to be the first access mode. When the access mode of the external equipment is determined to be the first access mode, the second control module acquires the timing information stored in the first control module, and controls the display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format. And when the access mode of the external equipment is determined to be the second access mode, the second control module receives the data signal input by the external equipment from the external device interface, and controls the display to display the timing information user interface based on the timing information of the data signal input by the external equipment received from the external device interface. Therefore, two modules can be opened up in the controller to realize the function of controlling the display to display the timing information user interface.

The driving method in some embodiments of the present application may include: and after receiving the data signal input by the external equipment from the external device interface, controlling the display to display a timing information user interface. Specifically, after receiving the data signal input by the external device from the external device interface, the method for controlling the display to display the timing information user interface includes: receiving a data signal input by the external equipment from the external device interface, and storing timing information corresponding to the data signal; obtaining the timing information stored in the first control module; and controlling the display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

The driving method in some embodiments of the present application may include: and when the external equipment is accessed, determining the access mode of the external equipment according to the pre-stored port definition information. And when the access mode of the external equipment is determined to be the first access mode, controlling the display to display a timing information user interface based on stored timing information of the data signal input by the external equipment received from the external device interface and the timing information corresponding to the set data format. And when the access mode of the external equipment is determined to be a second access mode, controlling the display to display a timing information user interface based on the timing information of the data signal input by the external equipment received from the external device interface. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation manner in the related art, the drawings used in the description of the embodiments or the related art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 illustrates an operational scenario between a display device and a control apparatus according to some embodiments;

fig. 2 illustrates a block diagram of a hardware configuration of a control device according to some embodiments;

fig. 3 illustrates a hardware configuration block diagram of a display device according to some embodiments;

fig. 4 illustrates a connection relationship diagram of an external device with an FRC chip and an SOC in a display device according to some embodiments;

fig. 5a illustrates a connection relationship diagram of an external device with related pins of an FRC chip and an SOC in a display device according to some embodiments;

FIG. 5b illustrates a connection diagram of an external device to related pins of an FRC chip and SOC in a display device according to still further embodiments;

FIG. 6a illustrates a schematic diagram of a UI interface displayed by a display, according to some embodiments;

FIG. 6b shows a schematic diagram of a UI interface displayed by the display according to yet further embodiments;

FIG. 7a illustrates an interaction diagram according to some embodiments;

FIG. 7b illustrates a flow diagram according to some embodiments;

FIG. 8a shows a schematic diagram of a UI interface displayed by a display according to yet further embodiments;

FIG. 8b shows a schematic diagram of a UI interface displayed by the display according to yet further embodiments;

FIG. 9a shows a schematic view of a UI interface displayed by the display according to yet some embodiments;

FIG. 9b shows a schematic diagram of a UI interface displayed by the display according to yet some embodiments;

FIG. 9c shows a schematic diagram of a UI interface displayed by the display according to yet further embodiments;

FIG. 9d shows a schematic view of a UI interface displayed by the display according to yet further embodiments;

FIG. 10a illustrates an interaction diagram in accordance with yet further embodiments;

FIG. 10b illustrates a flow diagram according to yet further embodiments;

FIG. 11 illustrates a flow diagram in accordance with yet further embodiments;

FIG. 12a shows a schematic diagram of a UI interface displayed by a display according to yet further embodiments;

FIG. 12b shows a schematic view of a UI interface displayed by the display according to yet further embodiments;

FIG. 13 illustrates an interaction diagram in accordance with further embodiments;

FIG. 14 illustrates an interaction diagram in accordance with yet other embodiments.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, and not all the embodiments.

It should be noted that the brief descriptions of the terms in the present application are only for convenience of understanding of the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises" and "comprising," 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 expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

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, the 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 configured to control the display device 200, which may receive an operation instruction input by a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an intermediary for interaction between the user and the display device 200. Such as: the user operates the channel up/down keys of the control device 100, and the display device 200 responds to the channel up/down operation. Illustratively, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. For example: the user may input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right movement keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement a function of controlling the display device 200.

In some embodiments, a smart device 300 (e.g., a mobile terminal, a tablet, a computer, a laptop, etc.) may also be used to control the display device 200. Illustratively, the display device 200 is controlled using an application program running on the smart device 300. The application may provide various controls to the user through an intuitive User Interface (UI) on a screen associated with the smart device 300 through configuration. For example, the mobile terminal may install a software application with the display device 200, implement connection communication through a network communication protocol, and implement the purpose of one-to-one control operation and data communication. Such as: the mobile terminal and the display device 200 may establish a control instruction protocol, and implement the function of the physical keys arranged as a remote controller by operating various function keys or virtual controls of a user interface provided on the mobile terminal. The audio and video content displayed on the mobile terminal can also be transmitted to the display device 200, so that the synchronous display function is realized.

In some embodiments, the display device 200 may also be controlled 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 by a module configured inside the display device 200 to obtain the voice command, or may be received by a voice control device of a device external to the display device 200.

In some embodiments, the display apparatus 200 may have a network television function of a broadcast receiving function and a computer support function. The display device may be implemented as: digital television, web television, Internet Protocol Television (IPTV), and the like.

In some embodiments, the display device 200 may also be in data communication with a server 400. Here, the display apparatus 200 may be allowed to be communicatively connected through 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 apparatus 200. By way of example, the display device 200 may send and receive information such as: receiving Electronic Program Guide (EPG) data, receiving software program updates, or accessing a remotely stored digital media library. The server 300 may be a cluster or a plurality of clusters, and may include one or more types of servers. Other web service contents such as video-on-demand and advertisement services are provided through the server 300.

Fig. 2 exemplarily shows a configuration block diagram of the control apparatus 100. As shown in fig. 2, the control device 100 may include a controller 110, a memory 120, a communicator 130, a user input interface 140, a user output interface 150, and a power supply 160.

The controller 110 includes a Random Access Memory (RAM)111, a Read Only Memory (ROM)112, a processor 113, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components of the communication cooperation, external and internal data processing functions.

Illustratively, when an interaction of a user pressing a key disposed on the remote controller or an interaction of touching a touch panel disposed on the remote controller is detected, the controller 110 may control to generate a signal corresponding to the detected interaction and transmit the signal to the display apparatus 200.

The memory 120 is used to store various operation programs, data, and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 120 may store various control signal instructions input by a user.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the control apparatus 100 transmits a control signal (e.g., a touch signal or a control signal) to the display device 200 via the communicator 130, and the control apparatus 100 may receive the signal transmitted by the display device 200 via the communicator 130. The communicator 130 may include at least one of an infrared signal module 131, a WIFI module 132, a bluetooth communication protocol module 133, a wired ethernet communication protocol module 134, and an NFC module. For example: the infrared signal module 131 converts an operation instruction input by a user into an infrared control signal according to an infrared control protocol, and transmits the infrared control signal to the display device 200 through the infrared transmission module. The following steps are repeated: the bluetooth communication protocol module 133 needs to convert an operation instruction input by a user into a bluetooth signal, and then modulates the bluetooth signal according to a communication protocol of the bluetooth signal, and sends the bluetooth signal to the display device 200.

The user input interface 140 may include at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like, so that a user can input a user operation instruction regarding controlling the display apparatus 200 to the control device 100 through voice, touch, gesture, press, and the like.

The user output interface 150 outputs a user operation instruction received by the user input interface 140 to the display apparatus 200, or outputs an image or voice signal received by the display apparatus 200. Here, the user output interface 150 may include an LED interface 151, a vibration interface 152 generating vibration, a sound output interface 153 outputting sound, a display 154 outputting images, and the like. For example, a remote control may receive an output signal such as audio, video, or data from user output interface 150 and display the output signal as an image on display 154, as an audio on sound output interface 153, or as a vibration on vibration interface 152.

And a power supply 160 for providing operation power support for each element of the control device 100 under the control of the controller 110. In the form of a battery and associated control circuitry.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment. As shown in fig. 3, the display apparatus 200 may include at least one of a tuning demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a memory 260, a user interface 265, a display 275, an audio output interface 280, and a power supply 290.

In some embodiments, the tuner-demodulator 210 may receive broadcast television signals by wired or wireless means, and may perform modulation and demodulation processes such as amplification, mixing, and resonance, so as to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., EPG data). The tuner demodulator 210 is responsive to the frequency of the television channel selected by the user and the television signal carried by the frequency, as selected by the user and controlled by the controller 250. The tuner-demodulator 210 can receive a television signal in various ways according to the broadcasting system of the television signal, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; and according to different modulation types, a digital modulation mode or an analog modulation mode can be provided; and can demodulate the analog signal and the digital signal according to the different kinds of the received television signals.

In some embodiments, communicator 220 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the display apparatus 200 may transmit content data to an external apparatus connected via the communicator 220, or browse and download content data from an external apparatus connected via the communicator 220. Illustratively, the communicator 220 may include at least one of a WIFI module 221, a bluetooth communication protocol module 222, a network communication protocol module such as a wired ethernet communication protocol module 223, or a near field communication protocol module, and an infrared receiver. This may allow the display apparatus 200 to establish transmission and reception of a control signal and a data signal with the external control device 100 or the server 400 through the communicator 220, and implement the control signal as a WIFI signal, a bluetooth signal, a radio frequency signal, or the like.

In some embodiments, the detector 230 is a component of the display device 200 for collecting signals of an external environment or interacting with the outside. Illustratively, the detector 230 may include a sound collector 231, such as a microphone, which may be used to receive a user's sound, such as a voice signal of a control instruction of the user to control the display device 200; alternatively, ambient sounds may be collected that identify the type of ambient scene, enabling the display device 200 to adapt to ambient noise. Illustratively, the detector 230 may further include an image collector 232, such as a camera, a video camera, etc., which may be used to collect external environment scenes to adaptively change the display parameters of the display device 200; and the function of acquiring the attribute of the user or interacting gestures with the user so as to realize the interaction between the display equipment and the user. The detector 230 may also include a light receiver for collecting ambient light intensity to adapt to changes in display parameters of the display device 200, etc. The detector 230 may also include a temperature sensor, such as by sensing ambient temperature, and the display device 200 may adaptively adjust the display color temperature of the image. For example, when the display device 200 is in an environment with a higher temperature, the display device 200 may be adjusted to display an image with a color temperature that is lower than the cold color; when the display device 200 is in a low temperature environment, the display device 200 may be adjusted to display an image with a warm hue.

In some embodiments, the external device interface 240 is a component that provides the controller 250 to control data transmission between the display apparatus 200 and an external apparatus. The external device interface 240 may be connected to an external apparatus such as a set-top box, a game device, a television box, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus. Illustratively, the external device interface 240 may include, but is not limited to, the following: a High Definition Multimedia Interface (HDMI) 241, a Composite Video Broadcast Signal (CVBS) Interface 242, an analog or digital Component Interface 243, a Universal Serial Bus (USB) Interface 244, a Component Interface (Component) Interface (not shown), a red, green, and blue (RGB) Interface (not shown), and the like. Of course, a composite input/output interface formed by the plurality of interfaces may be used.

In some exemplary embodiments, the controller 250 and the modem 210 may be located in different separate devices, for example, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box. In this way, the set-top box outputs a television signal after modulation and demodulation, and inputs the television signal into the display apparatus 200 through the external device interface 240.

In some embodiments, the controller 250 controls the operation of the display device 200 and responds to user operations by running various software control programs (e.g., an operating system and various application programs) stored on the memory 260. The controller 250 may also perform an operation related to the object selected by the control instruction in response to a received user command for selecting a UI object displayed on the display 260.

In some examples, controller 250 may include at least one of a Random Access Memory (RAM) 251, a Read-Only Memory (ROM) 252, a Graphics Processing Unit (GPU) 253, a processor 254 (e.g., a Central Processing Unit (CPU)), a communication interface 255, a video processor 256, an audio processor 257, and a communication bus, among others. Among them, the RAM251, the ROM252, the graphic processor 253, the processor 254, the video processor 256, the audio processor 257, and the communication interface 255 may be connected by a communication bus 256.

Processor 254 may be used to execute operating system and application program instructions stored in memory 260. And according to the received user input instruction, processing of various application programs, data and contents is executed so as to finally display and play various audio-video contents. And controlling the display to display the user interface according to the received control instruction. The processor 254 may comprise a plurality of processors, among others. The plurality of processors may include one main processor and a plurality of or one sub-processor. Wherein the main processor is configured to perform some initialization operations of the display device 200 in the display device preload mode and/or operations of displaying a screen in the normal mode. A plurality of or one sub-processor for performing an operation in a state of a display device standby mode or the like.

Among other things, the communication interface 255 may include a first interface through an nth interface. These interfaces may be network interfaces that are connected to external devices via a network.

In some embodiments, memory 260 may be used to store various types of data, software programs, or applications that drive and control the operation of display device 200. The memory 260 may include volatile and/or nonvolatile memory. For example, the memory 260 may be specifically used to store an operation program for driving the controller 250 of the display device 200; storing various application programs built in the display apparatus 200 and downloaded by a user from an external apparatus; data for configuring various UIs provided by the display 275, various objects related to the UIs, and visual effect images of selectors for selecting UI objects, and the like are stored.

In some embodiments, memory 260 may be specifically configured to store drivers for tuner demodulator 210, communicator 220, detector 230, external device interface 240, video processor 256, display 275, video processor 257, and the like, and related data, such as external data (e.g., audio-visual data) received from the external device interface or user data (e.g., key information, voice information, touch information, etc.) received by the user interface.

In some embodiments, memory 260 may specifically store software and/or programs representing an Operating System (OS), which may include, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. Illustratively, the kernel may control or manage system resources, as well as functions implemented by other programs (e.g., the middleware, APIs, or applications); at the same time, the kernel may provide an interface to allow middleware, APIs, or applications to access the controller to enable control or management of system resources.

In some embodiments, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel starts, activates kernel space, abstracts hardware, initializes hardware parameters, etc., runs and maintains virtual memory, scheduler, signals and inter-process communication (IPC). And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

In some embodiments, the user interface 265 may receive various user interactions. Specifically, the controller 250 is configured to transmit an operation instruction input by a user to the controller 250, or transmit a signal output from the controller 250 to the user. For example, the remote controller may transmit an operation command input by the user, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., to the user interface 265, and then the operation command is forwarded to the controller 250 through the user interface 265; alternatively, the remote controller may receive an output signal such as audio, video, or data output from the user interface 265 via the controller 250, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, the User may input a User operation instruction on a User Interface (UI) displayed on the display 275, and the User Interface 265 receives a User input command through the UI. Specifically, the user interface 265 may receive user operation instructions for controlling the position of a selector in the UI to select different objects or items. Among these, "user interfaces" are media interfaces for interaction and information exchange between an application or operating system and a user, which enable the conversion between an internal form of information and a form acceptable to the user. A commonly used presentation form of the user interface is a Graphical User Interface (GUI), which refers to a user interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display of the electronic device, where the control may include a visual interface element such as an icon, a control, a menu, a tab, a text box, a dialog box, a status bar, a channel bar, a Widget, etc.

Alternatively, the user may input a user operation command by inputting a specific sound or gesture, and the user interface 265 recognizes the sound or gesture through a sensor to receive the user operation command.

In some embodiments, the video processor is configured to perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis on the received external video signal according to a standard codec protocol of the input signal, so as to obtain a signal that can be displayed or played on the display device 200 directly.

Illustratively, in some embodiments, the video processor may include a demultiplexing module, a video decoding module, an image compositing module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. And the video decoding module is used for processing the demultiplexed video signal, including decoding, scaling and the like. And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.

In some embodiments, the audio processor 257 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processes to obtain an audio signal that can be played in the speaker.

Illustratively, the video processor 257 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), high efficiency AAC (HE-AAC), and the like.

In other exemplary embodiments, the video processor 256 may comprise one or more chips. The video processor 257 may also comprise one or more chips. And video processor 256 and video processor 257, may be separate chips or may be integrated together with controller 250 in one or more chips.

In some embodiments, the audio output interface 280 may be used to receive an audio signal output by the video processor 257 under the control of the controller 250, and the audio output interface 280 may include a speaker 286 or an external audio output terminal 287 output to a generating device of an external device, such as a headphone output terminal.

In some embodiments, the display 275 may be configured to receive image signals from the output of the video processor 256 in the controller, display video content, image content, and components of the menu manipulation interface, and user manipulation of the UI interface. The video content may be displayed from the video content in the broadcast signal received by the tuner/demodulator 210, or from the video content input by the communicator 220 or the external device interface 240. The display 275 may simultaneously display a user manipulation UI generated in the display apparatus 200 and used to control the display apparatus 200.

The display 275 may include a display screen assembly for displaying images and a driving assembly for driving the display of images, among other things. The Display 275 may be, for example, a Liquid Crystal Display (LCD), an Organic Light Emitting Diode (OLED) Display, and a projection Display, and may also be a projection device and a projection screen.

In some embodiments, the power supply 290 may be used to provide power supply support for the display device 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display apparatus 200 or may be a power supply installed outside the display apparatus 200.

In practical applications, if the format of the data signal input to the display device (e.g. a television) does not match the format supported by the display device, the display device may be caused to have problems of screen splash, screen blank or no signal. For example, when a 4K tv accesses an 8K data signal, since the 4K tv generally supports displaying the 4K data signal and supports decoding of the highest 4K data signal, a problem of screen splash, screen blank or no signal may occur when accessing the 8K data signal.

In view of this, the display device provided in the embodiment of the present invention, by providing the first control module and the second control module, when the display device inputs a data signal, can implement a normal display function through interaction between the first control module and the second control module.

The present invention will be described in detail with reference to examples. It should be noted that the present embodiment is intended to better explain the present invention, but not to limit the present invention.

1. The incoming call functions.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an external device, a first control module 011 and a second control module 012 according to some embodiments of the present application. The external device 11 may perform data interaction with the first control module 011 through the signal transmission line 12, and the first control module 011 may perform data interaction with the second control module 012 through the

signal transmission lines

13 and 14.

Illustratively, the signal transmission line 12 and the signal transmission line 13 may be HDMI lines. The signal transmission line 14 may be I²And (5) line C. Of course, the signal transmission lines 12 to 14 may be other wires capable of signal transmission, and are not limited herein.

In some examples, the first control module 011 and the second control module 012 can be independently provided in the controller. For example, the first control module 011 can be implemented in the form of a chip, and the second control module 012 can also be implemented in the form of a chip, which are independently disposed in the controller and transmit signals through the signal transmission line.

In some examples, the first control module 011 and the second control module 012 can be integrally provided in a controller. For example, the first control module 011 may be implemented as an integrated circuit, and the second control module 012 may be implemented as a chip, and the first control module 011 is integrated into the second control module 012. Alternatively, the second control module 012 may be implemented as an integrated circuit, or the first control module 011 may be implemented as a chip, and the second control module 012 may be integrated into the first control module 011. Alternatively, the first control module 011 and the second control module 012 are integrated on one circuit board.

Illustratively, the implementation of the first control module 011 can take the form of a hardware embodiment, or an embodiment combining software and hardware aspects. For example, the first control module 011 may be a separately partitioned module in the SOC. Alternatively, the first control module 011 may be provided as a Frame Rate Control (FRC) chip. Alternatively, the first control module 011 may be provided as another chip. The first control module 011 is not limited thereto as long as it satisfies the functions of the present invention.

The implementation of the second control module 012 may also take the form of a hardware embodiment or an embodiment combining software and hardware aspects. For example, the second control module 012 may be a module separately divided in SOC. Alternatively, the second control module 012 may be provided with an SOC. Alternatively, the second control module 012 may be provided as another chip. The second control module 012 is not particularly limited as long as it satisfies the functions of the present invention.

In some examples, the voltage control module is electrically connected to the first pin and the second pin of the first control module, respectively, and the response pin of the second control module is electrically connected to the first pin of the first control module. The first control module is configured to control the second pin to output a first level signal when the external device is connected to the display device and electrically connected with the first control module, and control the second pin to output a second level signal when the external device is disconnected from the display device and the first control module. And the voltage control module is configured to respond to the first level signal, conduct the voltage input end with the first pin of the first control module so as to input a device connection instruction to the response pin of the second control module, and respond to the second level signal, disconnect the voltage input end with the first pin of the first control module so as to input a device extraction instruction to the response pin of the second control module. The second control module can respond to the equipment access instruction of the input response pin and control the display to display equipment to access the UI interface; and controlling the display to display the device pull-out UI interface in response to the device pull-out command input into the response pin.

In some examples, referring to fig. 4 and 5a, the external device 11 may access the first control module 011 through the HDMI 12 for data transmission. For example, the first pin of the first control module may be a pin of an HDMI port, so that a voltage with a positive voltage value is input to the first pin to pull the first pin high. For example, a voltage of 5V (of course, 6V, 8V, etc., without limitation) may be input to the first pin to pull it high, so that the first pin of the first control module may be the 5V pin HDMI _ TX _5V of the HDMI port. Of course, the first pin of the first control module may also be another pin of the HDMI port, which is not limited herein.

In some examples, referring to fig. 4 and 5a, the first control module 011 can access the second control module 012 through HDMI13 for data transmission. For example, the response pin of the second control module may be a pin of an HDMI port to which a voltage of a positive voltage value is input to pull up the response pin. For example, if a voltage of 5V (of course, 6V, 8V, etc., but not limited thereto) may be input to the response pin to pull it high, the response pin of the second control module may be the 5V pin HDMI _ RX _5V of the HDMI port. Of course, the response pin of the second control module may also be another pin of the HDMI port, which is not limited herein.

For example, the first control module may have a plurality of General-purpose input/output (GPIO) pins, and the second pin may be configured as a GPIO pin. In this way, one GPIO pin GPIO _1 of the first control module and the 5V pin HDMI _ TX _5V of the HDMI port HDMITx are electrically connected to the voltage control module, so that the 5V pin HDMI _ TX _5V of the HDMI port HDMITx of the first control module is pulled up or pulled down by the voltage control module, thereby controlling the 5V pin HDMI _ RX _5V of the HDMI port HDMITx of the second control module to be pulled up or pulled down.

For example, the voltage control module may be provided in the first control module. Alternatively, the voltage control module may be provided in the second control module. Alternatively, the voltage control module and the first control module and the second control module may be respectively arranged in different modules. In practical applications, the design may be determined according to the needs of practical applications, and is not limited herein.

In some examples, referring to fig. 4 and 5a, the voltage control module may include: the device comprises a first control submodule, a second control submodule and a voltage division submodule; the first end of the first control submodule is electrically connected with the voltage input end, the second end of the first control submodule is electrically connected with the first pin of the first control module, and the control end of the first control submodule is electrically connected with the second end of the second control submodule; the first control submodule is configured to turn on the voltage input terminal with the first pin of the first control module in response to a signal input to the control terminal thereof, and to turn off the voltage input terminal with the first pin of the first control module in response to a signal input to the control terminal thereof. Illustratively, the first control submodule includes a first switch; the control end of the first switch is used as the control end of the first control submodule, the first end of the first switch is used as the first end of the first control submodule, and the second end of the first switch is used as the second end of the first control submodule. Of course, in practical applications, the implementation form of the first control sub-module may also be other forms, and is not limited herein.

In some examples, referring to fig. 4 and 5a, the control terminal of the second control sub-module is electrically connected to the second pin of the first control module, and the first terminal of the second control sub-module is electrically connected to the ground terminal; the second control sub-module is configured to turn on the ground terminal with the control terminal of the first control sub-module in response to a first level signal input to the control terminal thereof, and to turn off the ground terminal with the control terminal of the first control sub-module in response to a second level signal input to the control terminal thereof. Illustratively, the second control submodule includes a second switch; and the control end of the second switch is used as the control end of the second control submodule, the first end of the second switch is used as the first end of the second control submodule, and the second end of the second switch is used as the second end of the second control submodule. Of course, in practical applications, the implementation form of the second control sub-module may also be other forms, and is not limited herein.

In some examples, referring to fig. 4 and 5a, the voltage divider submodule is connected between the voltage input terminal and the second terminal of the second control submodule and is configured to divide voltage. Illustratively, the voltage divider submodule includes: a first resistor; the first end of the first resistor is electrically connected with the second end of the second control submodule, and the second end of the first resistor is electrically connected with the voltage input end. Of course, in practical applications, the implementation form of the voltage dividing submodule may also be other forms, and is not limited herein.

The following description will be given taking an example in which the first control module 011 is provided as the FRC chip 276 and the second control module 012 is provided as the SOC 278. For example, referring to fig. 4 and 5a, the external device 11 has an HDMI port HDMITx (i.e., HDMI output), the FRC chip 276 has an HDMI port HDMITx (i.e., HDMI sink), an HDMI port HDMITx (i.e., HDMI output), and the SOC has an HDMI port HDMITx (i.e., HDMI sink). The external device 11, the FRC chip, and the SOC have a plurality of other ports, and the present invention is not limited thereto.

Referring to fig. 4 and 5a, HDMI port HDMITx of external device 11 is connected to HDMI port HDMITx of FRC chip 276 through HDMI 12, and HDMI port HDMITx of FRC chip 276 is connected to HDMI port HDMITx of SOC278 through HDMI 13. Since the FRC chip 276 is provided between the external device 11 and the SOC278, the external device 11 cannot be directly connected to the SOC 278. Taking the first pin and the response pin as the 5V pin of the HDMI port as an example, after the external device 11 accesses the display device, the external device 11 cannot directly pull up the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278, so that the SOC278 cannot directly implement the incoming call function. Based on this, by providing the voltage control module 15, the embodiment of the present invention can pull up the 5V pin HDMI _ RX _5V of the HDMIRx of the SOC through the voltage control module 15, so that the SOC realizes the incoming call function.

For example, referring to fig. 5a, the voltage control module 15 may include: a first switch K1, a second switch K2, and a first resistor R1; a first terminal of the first switch K1 is electrically connected to the voltage input terminal VIN _5V (for example, a voltage of 5V may be input to the voltage input terminal VIN _ 5V), a second terminal of the first switch K1 is electrically connected to the 5V pin HDMI _ Rx _5V of the HDMI port HDMIRx of the SOC278, and a control terminal of the first switch K1 is electrically connected to the first terminal of the first resistor R1 and the second terminal of the second switch K2. A second terminal of the first resistor R1 is electrically connected to the voltage input terminal VIN _ 5V. The first end of the second switch K2 is electrically connected to the ground terminal, and the control terminal of the second switch K2 is electrically connected to the GPIO pin GPIO _1 of the FRC chip 276. Illustratively, the first switch K1 and the second switch K2 may be one of a Transistor, a Thin Film Transistor (TFT), and a Metal Oxide semiconductor field effect Transistor (MOS). For example, the second switch K2 is an NPN transistor, and a base of the NPN transistor may serve as a control terminal of the second switch, an emitter of the NPN transistor serves as a first terminal of the second switch, and a collector of the NPN transistor serves as a second terminal of the second switch. The first switch K1 is an N-type MOS transistor, and the gate of the N-type MOS transistor can be used as the control terminal of the first switch, the source of the N-type MOS transistor can be used as the first terminal of the first switch, and the drain of the N-type MOS transistor can be used as the second terminal of the first switch.

Illustratively, the 5V pin HDMI _ TX _5V of the HDMI port HDMITx of the FRC chip 276 is connected to the 5V pin HDMI _ RX _5V of the HDMI port HDMITx of the SOC278 through HDMI 13. Therefore, when the external device is accessed to the display device and electrically connected to the FRC chip in the first control module, a device access instruction (e.g., a voltage of 5V) may be input to a response pin (e.g., a 5V pin of the HDMI) of the SOC in the second control module through the FRC chip 276 in the first control module. This may cause the 5V pin HDMI _ TX _5V of the HDMI port HDMITx of FRC chip 276 to be pulled high to pull up the 5V pin HDMI _ RX _5V of the HDMI port of SOC 278. Since the 5V pin HDMI _ RX _5V of the HDMI port of the SOC in the second control module is pulled high, the display device can be controlled to access the UI interface. And, when the external device is unplugged from the display device and disconnected from the FRC chip in the first control module, a device unplugging instruction (e.g., no voltage input, or a voltage of a negative voltage value input) may be input to a response pin (e.g., a 5V pin of the HDMI) of the SOC in the second control module through the FRC chip 276 in the first control module. This may cause pin HDMI _ TX _5V of HDMI port HDMITx of FRC chip 276 to be pulled low to pull pin HDMI _ RX _5V of HDMI port HDMITx of SOC278 down. Since the 5V pin HDMI _ RX _5V of the HDMI port of the SOC in the second control module is pulled low, the display device can be controlled to pull out the UI interface.

Referring to fig. 4 and 5b, when the external device 11 is connected to the display device: after the external device 11 accesses the HDMI port hdmix of the FRC chip 276 through the HDMI 12, the 5V pin HDMI _ TX5V of the HDMI port hdmix of the external device 11 inputs a voltage of 5V to the 5V pin HRX _5V of the HDMI port hdmix of the FRC chip 276, so as to pull up the 5V pin HRX _5V of the HDMI port hdmix of the FRC chip 276. Data exchange between the external device 11 and the FRC chip 276 then takes place. After the data interaction between the external device 11 and the FRC chip 276 is completed, the FRC chip 276 pulls up the GPIO port GPIO _1, so that a high level can be output to the second switch K2, the second switch K2 is controlled to be turned on, so that an electric field is formed between the source and the gate of the first switch K1, a conductive channel is formed between the source and the drain of the first switch K1, and the 5V voltage of the voltage input terminal VIN _5V is output to the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278, so that the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278 is pulled up, so that the function that the FRC chip pulls up the 5V HDMI pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278 through the pin GPIO _1 and the voltage control module 15 is realized. After that, the SOC278 may determine that the external device 11 is accessed after detecting that the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx is pulled high, so as to control the display to display a UI interface "the external device has accessed", as shown in fig. 6 a.

Referring to fig. 4 and 5b, when the external device 11 is pulled out of the display device: the external device 11 is disconnected from the FRC chip 276 in the first control module, and the 5V pin HDMI _ TX5V of the HDMI port HDMIRx of the external device 11 stops inputting the voltage to the 5V pin HRX _5V of the HDMI port HDMIRx of the FRC chip 276, so that the 5V pin HRX _5V of the HDMI port HDMIRx of the FRC chip 276 is pulled low. The FRC chip 276 pulls the GPIO port GPIO _1 low so as to output a low level to the second switch K2, controls the second switch K2 to be turned off, so that no electric field is formed at the source and the gate of the first switch K1, controls the conductive channel between the source and the drain of the first switch K1 to be not formed, and accordingly disconnects the voltage input terminal VIN _5V and the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278, so that the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278 has no voltage input, and is pulled low, so that the FRC chip 276 pulls the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx of the SOC278 low through the voltage control module 15. After that, the SOC278 detects that the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx is pulled down, it may determine that the external device 11 is pulled out, and may control the display to display the UI interface "external device is pulled out", as shown in fig. 6 b.

In some examples, to improve the stability of the voltage control module, referring to fig. 5b, the voltage control module may further include: at least one of a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4. The second resistor R2 is connected between the second terminal of the second switch K2 and the control terminal of the first switch K1. The third resistor R3 is connected between the GPIO pin GPIO _1 and the control terminal of the second switch K2. The first capacitor C1 is connected between the voltage input terminal VIN _5V and the ground terminal, the second capacitor C2 is connected between the voltage input terminal VIN _5V and the ground terminal, the third capacitor C3 is connected between the voltage input terminal VIN _5V and the control terminal of the first switch K1, and the fourth capacitor C4 is connected between the 5V pin HDMI _ TX _5V of the HDMI port HDMITx of the FRC chip and the ground terminal.

For example, the resistance value of the resistor and the capacitance value of the capacitor may be designed according to the requirements of the practical application, and are not limited herein.

2、EDID。

EDID: extended Display Identification Data (Extended Display Identification Data): and refers to Display device Data transmitted in DDC (Display Data Channel) communication. The DDC is a channel that can be used to transmit EDID information, which can also be said to be transmitted through the DDC.

The EDID contains parameters about the display and its performance including vendor information, maximum image size, color settings, vendor presets, limits on frequency range, and strings of display names and serial numbers, among others. In a descriptive sense, the EDID is a collection of display identification cards, house scripts, skill certificates, and the like.

In practical applications, the EDID of HDMI mainly includes 128 bytes of main block and 128 bytes of extended block, the content of extended block is mainly related to audio attributes, and the extended block data specification is defined by CEA-861x standard, and may be increased to an integer multiple of 512 or 256 in the future.

As shown in table one, a brief description is made for the main block 128 bytes of EDID.

Watch 1

For each HDMI, there is one EDID to tag. For example, to support, for example, a 4K data signal: 3840 and 2160@50Hz/60Hz data signal, the HDMI standard is upgraded from a 1.4 version to a 2.0 version, and correspondingly used EDID versions are also upgraded synchronously. Namely, the EDID version corresponding to the HDMI1.4 version is different from the EDID version corresponding to the HDMI2.0 version.

Due to the wide variety of external devices on the market at present, compatibility problems can be caused to televisions. If the built-in EDID in the television is the 2.0 version, but the external device only supports the EDID1.4 version, and at this time, if the television is connected to the external device, the situation of signal disorder and the like occurs, so that two or three sets of EDID versions are built in the television, and corresponding version switching is performed for different devices, so that compatibility with the external device is realized. For example, the display may be controlled by the controller to display an EDID user interface having function buttons corresponding to a one-to-one correspondence of a plurality of different EDID version types in response to a selection control instruction input from the user interface by the user. And determining the EDID parameter information corresponding to the EDID version type of the corresponding selection control instruction according to the displayed EDID user interface, so that the external equipment accessed to the external device interface can transmit corresponding data signals based on the EDID parameter information corresponding to the EDID version type of the selection control signal, and the external equipment and the display equipment can be compatible with each other.

In some examples, a first control module and a second control module may be provided in the controller to enable an external device accessing the external device interface to transmit a corresponding data signal based on the EDID parameter information of the corresponding selection control signal so that the external device and the display apparatus may be compatible with each other.

In some examples, the display may be controlled by the second control module to present an EDID user interface having function buttons corresponding to a plurality of different EDID version types one-to-one, and the corresponding EDID version type may be selected and presented on the EDID user interface in response to a selection control instruction input from the user interface (e.g., the selection control instruction is input by a key, voice, or touch), and the function button corresponding to the selection control instruction in the EDID user interface is in the currently selected state, for example, the function button in the currently selected state may be highlighted or darkened (e.g., in a shadow) to distinguish other unselected function buttons.

And after the user selects a function button corresponding to a certain EDID version type currently, the second control module further determines whether the EDID version type corresponding to the function button in the currently selected state is the same as the EDID version type corresponding to the function button in the last selected state. And when the EDID version type corresponding to the function button in the current selected state is judged to be different from the EDID version type corresponding to the function button in the last selected state, outputting a write command based on the EDID version type corresponding to the function button in the current selected state to the first control module. The first control module may be caused to update the stored EDID parameter signal in response to a write command. For example, the last stored EDID parameter information may be controlled to be updated to the EDID parameter information corresponding to the function button selected by the user in the current selected state, so that the external device accessed by the external device interface can transmit the corresponding data signal based on the updated EDID parameter information.

And the first control module may receive the write command output by the second control module. After receiving the write command, responding to the write command, performing the operation of writing data to the register capable of storing the write command so as to write the write command in the register. And then controlling the EDID parameter information stored last time to be updated to the EDID parameter information corresponding to the function button in the currently selected state based on the content in the register subjected to the data writing operationAnd recording the updated EDID parameter information in E of the first control module²And the ROM is used for finishing the updating operation of the EDID parameter information in the second control module.

In summary, when the user switches the EDID version, the first control module is set as the FRC chip, and the second control module is set as the SOC. And the second control module can control the display to present an EDID user interface after receiving the display control instruction. And the second control module controls one functional button in the EDID user interface to be in a selected state after receiving the selection control instruction. Thereafter, the second control module determines whether the EDID version type in the currently selected state is the same as the stored EDID version type in the last selected state. When different, the second control module passes through I²And C14, outputting a write command to the first control module, and after receiving the write command, the first control module performs a data writing operation on the register storing the EDID parameter information so as to write the write command into the register. And then, the first control module controls the EDID parameter information stored last time to be updated to the EDID parameter information corresponding to the function button in the current selected state based on the written content in the register, and burns the updated EDID parameter information into an E2ROM of the first control module so as to complete the updating operation of the EDID parameter information stored in the first control module. Therefore, in the embodiment of the invention, the external device can perform data interaction with the second control module through the first control module. The EDID parameter information is stored in the first control module, so that the external equipment can directly acquire the EDID parameter information stored in the first control module, the version type of the EDID corresponding to the display can be known by the external equipment, and the data signal corresponding to the version type of the EDID can be output by the external equipment, so that the compatibility between the external equipment and the display equipment is met.

In some examples, in order to improve the viewing effect of the user, the user may switch the EDID version when the external device is accessed, or may switch the EDID version during a normal use process after the external device is accessed, which is not limited herein.

For example, the first control module is set as an FRC chip, and the second control module is set as an SOC. According to the traditional scheme, the EDID parameter information is built in the SOC, so that when the EDID version type is switched through the UI, the SOC can directly control the stored EDID parameter information to update, and the EDID version type can be directly switched. However, in the embodiment of the present invention, the EDID parameter information is stored in the register of the FRC chip, and since the UI interface is displayed by the SOC control display, the FRC chip cannot be controlled to perform parameter setting on the EDID parameter information directly through the UI interface. Based on this, referring to fig. 4 and 5a, port I of the FRC chip can be used²Port I of CRx and SOC²Between CTx adopt I²C14 is connected, the FRC chip is controlled to realize EDID version type switching through an agreed instruction, and the switched EDID version type is stored in a database of the SOC, so that EDID switching is realized.

For example, when the user switches EDID versions, the first control module is set as an FRC chip, and the second control module is set as an SOC. And the SOC can control the display to present an EDID user interface after receiving the display control instruction. And the SOC controls a function button in the EDID user interface to be in a selected state after receiving the selection control instruction. Thereafter, the SOC determines whether the EDID version type in the currently selected state is the same as the stored EDID version type in the last selected state. When different, SOC passes through I²And the C14 outputs a write command to the FRC chip, and after the FRC chip receives the write command, the FRC chip performs data writing operation on the register for storing the EDID parameter information so as to write the write command into the register. And then, the FRC chip controls the EDID parameter information stored last time to be updated to the EDID parameter information corresponding to the function button in the current selected state based on the written content in the register, and burns the updated EDID parameter information into an E2ROM of the first control module so as to complete the updating operation of the EDID parameter information stored in the FRC chip.

With reference to fig. 4 and fig. 7a and fig. 7b, the flow of switching the EDID version by the user may be specifically as follows.

S701, a user inputs a display control instruction for starting a UI interface having a plurality of different EDID versions from a user interface (for example, a physical key or a shortcut menu on a display), and after receiving the display control instruction, the SOC reads an EDID version type stored in the database, and controls the display to display an EDID UI interface having a plurality of EDID version types, as shown in fig. 8a, where the EDID UI interface may have function buttons corresponding to the different EDID version types one to one, and a product ID of the display. Fig. 8a illustrates function buttons corresponding to the EDID version type with the resolution of 3840 × 2160 and function buttons corresponding to the EDID version type with the resolution of 1920 × 1080.

S702, the user inputs a selection control command for selecting the EDID version type to be switched from the user interface (e.g. a physical button on the display, or through a touch function), and after receiving the selection control command, the SOC may control the UI interface of the EDID version that the function button corresponding to the selection control command is in the currently selected state, as shown in fig. 8b, for example, if the selection control command corresponds to the selected EDID version with the resolution of 3840 × 2160, the function button with the resolution of 3840 × 2160 may be lit or darkened (e.g. in a shadow), which may indicate that the function button with the resolution of 3840 × 2160 has been selected.

And S703, the SOC transmits the EDID version type selected by the user from the application layer to the middleware layer, and judges whether the EDID version type currently selected by the user (namely the EDID version type in the currently selected state) is the same as the EDID version type selected last time by the user and stored in the database (namely the EDID version type selected last time). If the EDID version type currently selected by the user is different from the EDID version type last selected by the user stored in the database, step S704 is performed. If the EDID version type currently selected by the user is the same as the EDID version type last selected by the user and stored in the database, step S707 is executed: and the FRC chip is not controlled to switch the EDID version, so that the EDID version is kept unchanged.

It should be noted that the operating system architecture in the memory of the display device 200 is an application layer, a middleware layer, and a kernel layer from top to bottom. The application layer may include a plurality of applications, such as a setup application, a post application, a media center application, and the like. These applications may be implemented as Web applications that execute based on a WebKit engine, and in particular may be developed and executed based on HTML5, Cascading Style Sheets (CSS), and JavaScript. The middleware layer may provide some standardized interfaces to support the operation of various environments and systems. For example, the middleware layer may be implemented as multimedia and hypermedia information coding experts group (MHEG) middleware related to data broadcasting, DLNA middleware of middleware related to communication with an external device, middleware providing a browser environment in which each application program in the display device operates, and the like. The kernel layer may provide core system services such as: file management, memory management, process management, network management, system security authority management and the like. The kernel layer may be implemented as a kernel based on various operating systems, for example, a kernel based on the Linux operating system.

S704, SOC pass I²The C14 sends a write command based on the EDID version type currently selected by the user (i.e., the EDID version type corresponding to the function button in the currently selected state) to the FRC chip, and the FRC chip receives the write command and informs the FRC chip that the user needs to switch the EDID version, and the SOC is about to write the EDID version currently selected by the user into the FRC chip. The write command may include: the register address for storing data and EDID parameter information to be switched by the user (i.e., EDID parameter information of EDID version type corresponding to the function button of the currently selected state).

For example, as shown in table two, the Register address (Register address) in the write command may be the address of the Register (Register address) in the FRC chip sent by the SOC to the FRC chip, so that the SOC inputs the address of the Register to the FRC chip to inform the FRC chip that the SOC is about to write the EDID version switched by the user into the Register corresponding to the address. The register addresses amount to 32bits (d0-d 31).

For example, as shown in Table two, E in the write commandDID parameter information (Write data) represents specific parameters of SOC written into Register address, and is used for extending the SOC and the HDMI related commands of the FRC chip for subsequent convenience. The EDID parameter information (Write data) may include: 8bits of master command (MainCmd), 8bits of slave command (SubCMd), 8bits of EDID parameter (Value). Wherein the Main command (MainCmd) is Main HDMI, representing AND I²C14 related command. The slave command (subcocmd) is a Sub Set edit Mode, representing a command to perform switching Edid version. The EDID Mode in the EDID parameter (Value) represents the EDID version type to be switched by the user. According to the agreed format, the EDID version type transmission between the SOC and the FRC chip is realized.

Watch two

S705, according to the Write command, performs an operation of writing data, and stores Main HDMI in the master command (MainCmd) in the EDID parameter information (Write data), Sub Set EDID Mode in the slave command (SubCmd), and EDID parameter (Value) to be transferred into the register.

Before the operation of writing data is carried out, the FRC chip can also judge whether the register corresponding to the register address of the write command is free or not. For example, the register corresponding to the register address of the write command in the FRC chip may also store other information, so that the SOC may call the information to perform a corresponding operation, thereby causing the register to be in an operating state. If the write command is directly applied to the register in the active state, program confusion may result. Therefore, when the register of the register address corresponding to the write command of the FRC chip is judged to be idle, the data writing operation can be carried out based on the write command. When the register of the register address of the write command corresponding to the FRC chip is judged to be not idle, the register is waited first, and when the register of the register address of the write command corresponding to the FRC chip is idle, the data writing operation is performed based on the write command.

S706, the FRC chip reads the content of the write command written in the register, and the slave command is sent according to Main HDMI in the Main command (Main cmd)Enabling the SubSet Edid Mode in the (SubCMd) and the EDID parameter (Value) to be transmitted, and burning the corresponding EDID parameter information into the E in the FRC chip²The switching of built-in EDID version types of FRC chips is realized in ROM (Electrically Erasable Programmable Read-Only Memory).

3. And (4) timing information.

In practical application, in order to optimize user experience, the controller sends the recognized timing information of the data signal to the display under the HDMI channel, and the display displays the timing information of the data signal input into the controller by the external equipment. It should be noted that the timing information generally includes the resolution and refresh rate of the data signal. For example, the timing information may be: 7680 4320@60HZ, 3840 @ 2160@60HZ, 1920 x 1080@60HZ, and the like. In some examples, the external device may input a data signal to the controller through the external device interface, and the controller may control the display to display a user UI interface, such as that shown in fig. 9a, according to the data signal input by the external device. Or, the method may further control the display to display a timing information UI interface that identifies the timing information of the input data signal when the display displays, for example, the user UI interface shown in fig. 9a according to the timing information carried in the data signal.

In some examples, a first control module and a second control module may be provided in the controller, so that the display may implement a display timing information UI interface. Illustratively, the first control module receives a data signal input by the external device from the external device interface, and can determine the timing information carried in the data signal and store the timing information. Through data interaction between the first control module and the second control module, the second control module can acquire the timing information of the received data signal stored in the first control module. Therefore, the second control module can control the display to display the timing information user interface based on the timing information acquired from the first control module and the timing information corresponding to the set data format. It should be noted that, for the setting data format in this embodiment, the following description may be referred to, and details are not described herein.

In some examples, the second control module may receive a data signal input by the external device through the first control module, and send a timing acquisition instruction to the first control module after receiving the data signal input by the first control module, so as to acquire timing information corresponding to the data signal input by the external device and stored in the first control module. Because the data signal input by the first control module to the second control module may be down-sampled by the first control module or may be directly sent to the second control module without being processed by the first control module, after the second control module acquires the timing information stored in the first control module, it may be determined whether the acquired timing information is consistent with the timing information corresponding to the set data format. When the acquired timing information is the timing information corresponding to the set data format, that is, the acquired timing information is consistent, whether the timing information acquired from the first control module at this time is consistent with the timing information stored when the external device is inserted last time can be continuously judged, so that whether the timing information needs to be updated or not is determined. If the dimming information acquired from the first control module at this time is judged to be consistent with the dimming information stored when the external device is inserted last time, the display can be controlled to display without updating the dimming information, that is, the display can be controlled to display the dimming information user interface directly based on the dimming information stored when the external device is inserted last time. If the fact that the timing information acquired from the first control module at this time is inconsistent with the timing information stored when the external equipment is inserted last time is judged, the timing information needs to be updated, and then the display is controlled to display. That is to say, the stored timing information is updated to the timing information obtained from the first control module at this time, and the display is controlled to display the timing information user interface based on the timing information obtained from the first control module at this time.

And when the obtained timing information is not the timing information corresponding to the set data format, that is, is inconsistent, the second control module may obtain the timing information of the data signal received from the first control module based on the data signal sent by the first control module. Then, it can be determined whether the timing information of the data signal received from the first control module at this time is consistent with the timing information stored in the external device when the external device was inserted last time, so as to determine whether the timing information needs to be updated. If the timing information of the data signal received from the first control module at this time is judged to be consistent with the timing information stored by the first control module when the external device is inserted last time, the display can be controlled to display without updating the timing information, that is, the display can be controlled to display the timing information user interface directly based on the timing information stored when the external device is inserted last time. If the timing information of the data signal received from the first control module at this time is judged to be inconsistent with the timing information stored by the first control module when the external equipment is inserted last time, the timing information needs to be updated, and then the display is controlled to display. That is to say, the stored timing information may be updated to the timing information of the data signal received from the first control module this time, and the display may be controlled to display the timing information user interface based on the timing information of the data signal received from the first control module this time.

For example, a register storing the timing information may be set in the first control module, and a timing type of the register storing the timing information (timing Info) may be defined. Taking 8K as an example, as shown in table three, 6 types of 8K ticketing information are defined, and the 6 types of ticketing information are all data signals sent by external equipment connected to a common television (EDID of the television also only declares the six ticketing formats). The VIC represents the serial number of the corresponding timing information specified in the CEA. If the FRC chip acquires that the timing information of the data signal input by the external equipment is a signal below 8K, the timing type is set to be 0 in the register, and the type of the timing information can be stored. If the timing information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@24HZ, the timing type is set to 1 in the register, and the type of the timing information can be stored. If the dimming information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@25HZ, the dimming type is set to 2 in the register, and the type of the dimming information can be stored. If the dimming information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@30HZ, the dimming type is set to 3 in the register, and the type of the dimming information can be stored. If the timing information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@48HZ, the timing type is set to 4 in the register, and the type of the timing information can be stored. If the timing information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@50HZ, the timing type is set to 5 in the register, and the type of the timing information can be stored. If the dimming information of the data signal input by the external equipment acquired by the FRC chip is 7680 x 4320@60HZ, the dimming type is set to 6 in the register, and the type of the dimming information can be stored.

Watch III

For example, the second control module may have a plurality of HDMI ports HDMIRx, and a part of the HDMI ports HDMIRx may be defined as ports directly connected to the external device, and another part of the HDMI ports HDMIRx may be defined as ports connected to the first control module, and then the first control module may be directly connected to the external device through the HDMI. In application, the definition of these HDMI ports HDMIRx may be stored in a memory of the second control module, which may have, for example, an HDMI port HDMIRx: HDMI-1-1, HDMI-1-2, HDMI-1-3, HDMI-2-1, HDMI-2-2, and HDMI-2-3, the HDMI port HDMIRx may be: HDMI-1-1, HDMI-1-2 and HDMI-1-3 are defined as ports for directly connecting external devices, and the HDMI port HDMIRx: HDMI-2-1, HDMI-2-2, and HDMI-2-3 are defined as ports directly connected to the first control module. Based on this, in some examples, since the external device is electrically connected to the HDMI port, when the external device is accessed, the controller may determine the access mode of the external device according to the pre-stored definition information of the HDMI port in combination with the HDMI port to which the external device is accessed.

For example, when the controller determines that the access mode of the external device is the first access mode (e.g., the external device is directly connected to the first control module), the display may be controlled to display the timing information user interface based on stored timing information of a data signal input from the external device received from the external device interface and timing information corresponding to the set data format. For example, when it is determined that the access mode of the external device is the first access mode, the first control module may receive a data signal input by the external device from the external device interface, and store the timing information corresponding to the data signal. The second control module can interact with the first control module to acquire the timing information stored in the first control module, and control the display to display the timing information user interface based on the acquired timing information and the timing information corresponding to the set data format.

For example, when the controller determines that the access mode of the external device is the second access mode (e.g., the external device is directly connected to the second control module), the display may be controlled to display the dimming information user interface based on dimming information of a data signal input from the external device received from the external device interface. For example, when it is determined that the access mode of the external device is the second access mode, the second control module may directly receive the data signal input by the external device from the external device interface, and may determine the timing information carried in the data signal received from the external device interface, so that the display may be controlled to display the timing information user interface based on the timing information of the data signal input by the external device received from the external device interface.

Further, when the access mode of the external device is determined to be the second access mode, the second control module may directly determine the timing information of the data signal input by the external device received from the external device interface according to the data signal input by the external device. And then judging whether the timing information of the data signal received this time is consistent with the stored timing information of the data signal received when the external equipment is inserted last time, so as to determine whether to update the stored timing information. When the information is consistent, the stored dimming information does not need to be updated, and the display is controlled to display the dimming information user interface directly based on the dimming information stored when the external equipment is inserted last time. When the data signals are inconsistent, the stored timing information can be updated, that is, the stored timing information can be updated to the timing information of the data signals received this time, and the display is controlled to display the timing information user interface based on the timing information of the data signals received this time.

A dimming information processing mode I:

for example, the first control module is set as an FRC chip, and the second control module is set as an SOC. In the embodiment of the present invention, after the SOC receives the input data signal, the SOC may determine whether the HDMI port receiving the data signal is a port connected with an FRC chip (i.e., a first access mode) according to the pre-stored definition information of the HDMI port. Furthermore, the FRC chip is arranged between the external equipment and the SOC, so that the data signal input into the SOC may be subjected to down-sampling processing, and the timing information acquired by the SOC may be inaccurate, so that the timing information of the data signal output by the external equipment can be stored in a register of the FRC chip firstly, then the timing information of the data signal with a set data format is compared with the timing information stored by the FRC chip by the SOC, and if the timing information is the same, the timing information does not need to be updated. If the difference is not the same, the timing information needs to be updated.

Take the example that the first control module is set as an FRC chip and the second control module is set as an SOC. When the HDMI port for receiving the data signal is determined to be the port (for example, HDMI-2-1) directly connected to the FRC chip, in conjunction with the description of FIGS. 9a to 10b, the display is controlled to display a timing information user interface through the following steps S1001 to S1008.

S1001, SOC pass I²And C14, sending a timing acquisition instruction to the FRC chip in a DDC (direct digital control) mode. For example, the timing fetch instruction may be a register storing timing informationThe register address.

S1002, the FRC chip prepares the timing information corresponding to the data signal input by the external device (i.e., the data signal output by the external device) stored in the register, so that the SOC reads the timing information stored in the FRC register. For example, the timing information corresponding to the data signal input by the external device may be 7680 × 4320@60HZ, that is, the data signal input by the external device is an 8K data signal.

S1003, SOC judges whether the timing information acquired from the FRC chip is the timing information corresponding to the 8K data signal.

When the SOC determines that the dimming information acquired from the FRC chip is the dimming information corresponding to the 8K data signal, for example, if the dimming information acquired from the FRC chip by the SOC is 7680 × 4320@60HZ, it indicates that the dimming information acquired from the FRC chip by the SOC is the dimming information corresponding to the 8K data signal, and then steps S1004 to S1006 are executed.

When the SOC determines that the timing information acquired from the FRC chip is not the timing information corresponding to the 8K data signal, for example, if the timing information acquired from the FRC chip by the SOC is 3840 × 2160@60HZ, it indicates that the timing information acquired from the FRC chip by the SOC is not the timing information corresponding to the 8K data signal, and then steps S1007 to S10010 are executed.

S1004, the SOC judges whether the timing information acquired from the FRC chip at this time is consistent with the timing information stored when the external equipment is inserted last time.

S1005, if the information is consistent, for example, the timing information obtained from the FRC chip this time is 7680 × 4320@60HZ, and the timing information stored when the external device was inserted last time is 7680 × 4320@60HZ, it indicates that the timing information of the two data signals is consistent. The SOC does not update the stored timing information (i.e., the timing information stored the last time the external device was inserted that is still stored), but controls the display to be displayed on the UI interface shown in fig. 9a directly according to the last stored timing information, for example, the timing information user interface TM1 is displayed in the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 9 b.

And S1006, if the data signals are inconsistent, for example, the timing information acquired by the SOC from the FRC chip at this time is 7680 × 4320@60HZ, and the timing information stored when the external device is inserted last time is 7680 × 4320@50HZ, the timing information of the two data signals is inconsistent. The SOC updates the stored dimming information to the dimming information acquired from the FRC chip this time, and controls the display to be displayed on the UI interface shown in fig. 9a according to the updated dimming information, for example, a dimming information user interface TM1 is displayed at the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 9 b.

S1007, the SOC determines the timing information of the data signal received this time. For example, the timing information of the data signal received this time is 3840 × 2160@60 HZ.

S1008, the SOC judges whether the timing information of the data signal received this time is consistent with the timing information of the data signal received when the external equipment is inserted last time.

S1009 shows that the timing information of the two data signals matches, for example, the timing information of the data signal received this time is 3840 × 2160@60HZ, and the timing information of the data signal received when the external device was last inserted is also 3840 × 2160@60 HZ. The SOC does not update the stored timing information but directly controls the display to be displayed on the UI interface shown in fig. 9a according to the stored timing information, for example, the timing information user interface TM2 is displayed in the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 9 c.

S10010, if the data signals are inconsistent, for example, the timing information of the data signal received this time is 3840 × 2160@60HZ, and the timing information of the data signal received when the external device was last inserted is 1920 × 1080@60HZ, it indicates that the timing information of the two data signals is inconsistent. The SOC updates the stored timing information to the timing information of the data signal received this time, and controls the display to be displayed on the UI interface shown in fig. 9a according to the updated timing information, for example, the timing information user interface TM3 is displayed on the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 9 d.

And a second dimming information processing mode:

illustratively, the second control module is set to SOC. In the embodiment of the present invention, after the SOC receives the input data signal, the SOC may determine whether the HDMI port receiving the data signal is a port directly connected to the external device (i.e., the second access mode) according to the pre-stored definition information of the HDMI port. If the HDMI port for receiving the data signal is determined to be a port for directly connecting the external device (i.e. the second access mode), that is, the external device and the SOC are directly electrically connected through the HDMI (e.g. HDMI-1-2), this may enable the SOC to directly receive the data signal input by the external device. For example, with reference to fig. 11 to 12b, the display is controlled to display the timing information user interface through the following steps S1101 to S1104.

S1101, the SOC determines the timing information of the data signal according to the received data signal. The data signal is input into the SOC by an external device directly through the HDMI port HDMI-1-2. For example, the dimming information corresponding to the data signal input by the external device is 7680 × 4320@60 HZ.

S1102, the SOC judges whether the timing information of the data signal received this time is consistent with the stored timing information of the data signal received when the external equipment is inserted last time.

S1103, if the sum is equal, for example, the timing information of the data signal received this time is 7680 × 4320@60HZ, and the timing information of the data signal received last time the external device was inserted is 7680 × 4320@60HZ, it indicates that the timing information of the two data signals is equal. The SOC does not update the stored timing information (i.e., the stored timing information of the data signal received when the external device was last inserted), but directly controls the display to be displayed on the UI interface shown in fig. 9a according to the stored timing information, for example, the timing information user interface TM4 is displayed in the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 12 a.

S1104, if the data signals are inconsistent, for example, the timing information of the data signal received this time is 3840 × 2160@60HZ, and the timing information of the data signal received when the external device was last inserted is 7680 × 4320@60HZ, it indicates that the timing information of the two data signals is inconsistent. The SOC updates the stored timing information to the timing information of the data signal received this time (i.e. the stored timing information of the data signal received when the external device was last inserted is changed to the timing information of the data signal received this time), and controls the display to be displayed on the UI interface shown in fig. 9a according to the updated timing information, for example, the timing information user interface TM5 is displayed on the upper left corner of the UI interface shown in fig. 9a, as shown in fig. 12 b.

4. The display device displays a screen.

In practical applications, if the format of a data signal input to a display device (e.g., a television) does not match the format supported by the display device, the display device may be caused to have problems such as screen splash, screen blackout, or no signal. In the embodiment of the present invention, the format of the data signal that does not match with the display device may be defined as the set data format, that is, the set data format may be a data format that is not supported or matched by the display device. For example, the data format may be set to 8K, and the display device can only support 4K at most, so that after the data signal of 8K is input into the display device, the format may be mismatched, and the display device may have problems of screen omission, screen blackness, or no signal. In view of this, in the display apparatus provided in the embodiment of the present invention, when the data signal input by the external device interface is a data signal with a set data format, the controller may further perform down-sampling processing on the data signal, so that the data signal after the down-sampling processing may be in the data format supported by the display apparatus. Therefore, the display can be controlled to display based on the data signals after the down-sampling processing. For example, when the data signal input from the external device interface is an 8K data signal, the 8K data signal may be down-sampled and then displayed on the display. For example, the setting data format may be 4K/2K, but is not limited thereto.

In some examples, a first control module and a second control module may be provided in the controller to implement a down-sampling process on the data signal so that the external device and the display device may be compatible with each other. The first control module can perform data interaction with an external device through an external device interface, the external device can input a data signal for displaying an image to the first control module through the external device interface, and when the data signal input through the external device interface is a data signal with a set data format, the data signal can be subjected to down-sampling processing so as to meet the requirement of EDID parameter information stored in the data signal, that is, the data signal subjected to down-sampling processing can be in a data format supported by the display device. And the second control module can perform data interaction with the first control module through the signal transmission line, the first control module outputs the data signal subjected to the down-sampling processing to the second control module, and the data signal subjected to the down-sampling processing by the first control module can be in a data format supported by the display device, so that after the second control module receives the data signal output by the first control module, the display can be controlled to display according to the received data signal, so as to realize image display.

In some examples, the first control module may perform data interaction with an external device to receive a data signal input by the external device through an external device interface. The resolution information corresponding to the data signal may be determined according to information carried in the data signal. Therefore, whether the video pixel data in the data signal is subjected to the down-sampling processing can be determined according to the relationship between the determined resolution information of the data signal and the resolution information corresponding to the data signal with the set data format. When the resolution information corresponding to the data signal is determined to be the resolution information corresponding to the data signal with the set data format, it is indicated that the data signal input by the external device is not the data signal which can be supported by the display device, so that the video pixel data in the data signal can be subjected to down-sampling processing, so that the video pixel data subjected to down-sampling processing can meet the data signal supported by the display device, namely, the requirement of the stored EDID parameter information is met. In this way, the data signal after the down-sampling processing is sent to the second control module, so that the second control module can control the display to display based on the data signal. And when the data signal input by the external device interface is not the data signal with the set data format, the data signal input by the external device is the data signal which can be supported by the display equipment, so that the received data signal can be directly output to the second control module without being subjected to down-sampling processing by the first control module, and the second control module controls the display to directly display based on the data signal.

In some examples, the first control module may also detect a state of a set pin in the external device interface in real time. For example, when detecting that the set pin is in an active state (e.g., the set pin is pulled high) based on an access state instruction input by the external device accessed by the external device interface, controlling the hot plug pin of the external device interface to be in an active state (e.g., the hot plug pin is pulled high) so that the external device acquires the E in the first control module²The EDID parameter information stored in the ROM can enable the external equipment to know the EDID version type supported by the display equipment, so that the corresponding data signal can be transmitted based on the obtained EDID parameter information corresponding to the EDID version type. Illustratively, the setting pin may be, for example, a 5V pin in an HDMI port. When the 5V pin inputs a voltage of 5V, it can be said that the setting pin is in an active state. When the hot plug pin inputs 5V voltage, the hot plug pin can be indicated to be in an effective state. Of course, in practical applications, the voltage value of the set pin input and the voltage value of the hot plug pin input may also be set to other values (e.g., 4V, 6V, 8V, etc.), and is not limited herein.

a: when the external device is just connected to the display device, the external device inputs a data signal and the display device displays a picture.

Referring to fig. 4, taking the first control module as an FRC chip and the second control module as an SOC as an example, the FRC chip may communicate with an external device connected to an external device interface, so as to receive a data signal input by the external device to the display apparatus via the external device interface. For example, the FRC chip communicates with a tv box connected to an interface of an external device, and the tv box outputs 8K/4K/2K data signals to the FRC chip through the interface of the external device.

And the FRC chip can also communicate with the SOC, so that when the maximum resolution of the data signal which can be decoded by the SOC is smaller than the resolution of the data signal received by the FRC chip, the received data signal can be subjected to down-sampling processing, the data signal subjected to down-sampling processing can meet the requirement of the maximum resolution of the data signal which can be decoded by the SOC, and the data signal subjected to down-sampling processing is input into the SOC, so that the SOC can control the display to display according to the input data signal. For example, taking 4K and 8K as examples, when the FRC chip receives an 8K data signal, the maximum resolution of the video signal that can be decoded by the SOC is a 4K data signal, and the data signal that can be displayed by the display is also a 4K data signal, the FRC chip may perform down-sampling processing on the received 8K data signal to convert the 8K data signal into a 4K data signal, and then input the 4K data signal into the SOC to satisfy the requirement of the data signal that can be processed by the SOC, so that the SOC can control the display to display the image corresponding to the data signal. This may enable a display device supporting decoding of 4K data signals to eventually enable decoding and display of 8K data signals.

In the embodiment of the invention, the FRC chip is arranged between the external equipment and the SOC, and when the external equipment is accessed to the display equipment, the external equipment realizes data signal transmission through the FRC chip and the SOC. With reference to fig. 4, fig. 5a and fig. 13, taking the data format set as 8K as an example, when the external device is connected to the display device, the interaction process among the external device, the FRC chip and the SOC is as follows:

s1301, the HDMI 12 of the external device 11 is connected to the HDMI port HDMIRx of the FRC chip 276, and the 5V pin HDMI _ TX5V of the HDMI port HDMIRx of the external device 11 inputs a voltage of 5V to the 5V pin HRX _5V of the HDMI port HDMIRx of the FRC chip 276, and pulls up the 5V pin HRX _5V of the HDMI port HDMIRx of the FRC chip 276.

S1302, FRC chip 276 detects that HRX _5V pin is pulled high, and pulls high the pin (see FIG. 5a, HRX _ CN, HRX _ CP, HRX _0N, HRX _0P, HRX _1N, HRX _1P, HRX _2N, HRX _2P) which transmits data signal in TMDS/FRL mode in HDMI port HDMIRx. And pulling high the hot plug pin HDMI _ RX _ HPD of the HDMI port HDMIRx.

S1303, since the hot plug pin HDMI _ RX _ HPD of the HDMI port HDMIRx of the FRC chip 276 is pulled high, the hot plug pin HDMI _ TX _ HPD of the HDMI port HDMITx of the external device 11 is also pulled high, and when the external device 11 detects that the hot plug pin HDMI _ TX _ HPD is pulled high, the external device actively passes through the HDMI port HDMITx of the external device 11DDC pins (see FIG. 5a, HDM1_ TX _ SDA, HDM1_ TX _ SCL) read E burned into FRC chip 276²EDID information in ROM. E.g. E burned into FRC chip²The EDID information in the ROM may be EDID information corresponding to a 4K data signal, such as EDID information corresponding to 3840 × 2160@60 Hz.

S1304, the external device 11 inputs the data signal corresponding to the read EDID information to the FRC chip 276 through the HDMI 12 by using a TMDS (transition minimized differential signaling) method according to the read EDID information. Wherein, the data signal transmitted through TMDS mainly includes: video data period signal (video data period), data island (data island), and control information (preamble). The video data periodic signal mainly comprises video pixel data, the data island mainly comprises an audio data packet and auxiliary information, and the control information comprises a video flag bit for identifying the video data periodic signal and an audio flag bit for identifying the data island, so that whether the signal to be transmitted next is the video data periodic signal or the data island can be controlled through the flag bits.

S1305 and the FRC chip 276 may determine the data island and the video data periodic signal in the input data signal according to the video flag bit and the audio flag bit, respectively. Wherein, the FRC chip does not process the data island. And, the FRC chip 276 may acquire resolution information and dimming information corresponding to the video data periodic signal according to the determined video data periodic signal, and store the acquired dimming information in a corresponding register.

S1306, the FRC chip 276 determines whether the resolution information corresponding to the input data signal is the resolution information corresponding to the 8K data signal according to the resolution information.

S1307, since the resolution of the 8K data signal is 7680 × 4320, and the resolution of the 4K data signal is 3840 × 2160, if the resolution of the data signal input from the external device is 7680 × 4320, it indicates that the data signal input from the external device is the 8K data signal. At the moment, the video pixel data in the video data periodic signal can be subjected to down-sampling processing, so that the video pixel data subjected to down-sampling processing can meet the requirement of EDID information corresponding to the 4K data signal, and the display can normally display the data signal input by the external equipment. For example, the stored EDID information corresponds to a 4K data signal, and the 8K data signal may be processed into the 4K data signal through down-sampling.

For example, the down-sampling process may be to subtract 7680 × 4320 from 3840 × 2160 the video pixel data in the data signal received by the FRC chip, so as to meet the requirement of the 4K data signal. Alternatively, the down-sampling process may be performed by combining 7680 × 4320 video pixel data in the data signal received by the FRC chip into 3840 × 2160, so as to satisfy the requirement of the 4K data signal. Of course, the down-sampling process may be implemented in other ways, and is not limited herein.

If the FRC chip determines that the resolution of the data signal input by the external equipment is 3840 x 2160, the data signal input by the external equipment into the FRC chip is 4K data signal, but not 8K data signal. No processing of the data signal is required. After the determined video data period signal and the data island are packed, they are sent to the SOC through pins (see fig. 5 a: HTX _ CN, HTX _ CP, HTX _0N, HTX _0P, HTX _1N, HTX _1P, HTX _2N, HTX _2P) in TMDS manner, so that the SOC278 can perform corresponding processing on the received data signal, and then control the display to display images and play sound based on the data signal, or control the display to display a user UI interface as shown in fig. 8 a.

S1308 and the FRC chip 276 pull up a 5V pin HDMI _ RX _5V of an HDMI port HDMIRx of the SOC through the GPIO pin GPIO _1 and the voltage control module.

S1309 and the SOC278 detect that the 5V pin HDMI _ RX _5V of the HDMI port HDMIRx is pulled high, and may control the display to display the UI interface shown in fig. 6 a.

S13010 and the FRC chip 276 pack the data islands and the down-sampled video data periodic signal to form an updated data signal, and the updated data signal is sent to the SOC278 through pins (see FIG. 5 a: HTX _ CN, HTX _ CP, HTX _0N, HTX _0P, HTX _1N, HTX _1P, HTX _2N, HTX _2P) in a TMDS manner through the HDMI 13.

S13011 and SOC278 may control the display to display an image and play sound based on the data signal after performing corresponding processing on the received data signal, or control the display to display a user UI interface shown in fig. 8a, for example.

b: after the external equipment is connected with the display equipment, the external equipment inputs data signals and the display equipment displays pictures.

Referring to fig. 4, taking the first control module as an FRC chip, the second control module as an SOC, and setting the data format to be 8K as an example, the FRC chip may communicate with an external device connected to an external device interface, so as to receive a data signal input by the external device to the display apparatus via the external device interface. And when the received data signal is an 8K data signal, down-sampling the data signal. And sending the data signal after the down-sampling processing to the SOC, so that the SOC can control the display panel to display the video picture according to the data signal after the down-sampling processing.

In the embodiment of the invention, the FRC chip is arranged between the external equipment and the SOC, and when the external equipment is accessed into the display equipment, the external equipment realizes data signal transmission through the FRC chip and the SOC. With reference to fig. 4, fig. 5a and fig. 13, taking the data format set as 8K as an example, after the external device has accessed the display device, the interaction process among the external device, the FRC chip and the SOC is as follows:

s1401, the external device 11 reads the E burned into the FRC chip through the DDC pins (HDM1_ TX _ SDA, HDM1_ TX _ SCL) of the HDMI port HDMITx²EDID information in ROM. E.g. E burned into FRC chip²The EDID information in the ROM may be EDID information corresponding to a 4K data signal, such as EDID information corresponding to 3840 × 2160@60 Hz.

S1402, the external device 11 inputs the data signal corresponding to the read EDID information to the FRC chip 276 through the HDMI 12 in the TMDS manner according to the read EDID information.

S1403 and FRC chip 276 can determine the data island and the video data period in the input data signal according to the video flag bit and the audio flag bit, respectively. Wherein, the FRC chip does not process the data island. And the FRC chip 276 may acquire resolution information corresponding to the video data periodic signal according to the determined video data periodic signal, and store the acquired resolution information in a corresponding register.

S1404, the FRC chip 276 determines whether the resolution information corresponding to the input data signal is the resolution information corresponding to the 8K data signal according to the resolution information.

S1405, since the resolution of the 8K data signal is 7680 × 4320, and the resolution of the 4K data signal is 3840 × 2160, if the resolution of the data signal inputted from the external device is 7680 × 4320, it indicates that the data signal inputted from the external device to the FRC chip is the 8K data signal. At the moment, the video pixel data in the video data periodic signal can be subjected to down-sampling processing, so that the video pixel data subjected to down-sampling processing can meet the requirement of EDID information corresponding to the 4K data signal, and the display can normally display the data signal input by the external equipment. For example, the stored EDID information corresponds to a 4K data signal, and the 8K data signal may be processed into the 4K data signal through down-sampling.

If the FRC chip determines that the resolution of the data signal input by the external equipment is 3840 × 2160, the data signal input by the external equipment into the FRC chip is 4K data signal, but not 8K data signal. No processing of the data signal is required. And then packaging the determined video data periodic signal and the determined data island, and sending the video data periodic signal and the data island to the SOC278 by adopting a TMDS (transition minimized differential signaling) mode, so that the SOC278 can perform corresponding processing on the received data signal, and then control a display to display images and play sound based on the data signal.

S1406 and the FRC chip 276 packetize the data island and the down-sampled video data periodic signal to form an updated data signal, and transmit the updated data signal to the SOC278 through the HDMI13 in a TMDS manner.

S1407 and the SOC278 may perform corresponding processing on the received data signal, and control the display to display an image and play sound based on the data signal.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: and after receiving a data signal input by the external equipment from the external device interface, controlling the display to display a timing information user interface. Specifically, after receiving a data signal input by an external device from an external device interface, the method for controlling a display to display a timing information user interface includes: receiving a data signal input by external equipment from an external device interface, and storing timing information corresponding to the data signal; obtaining timeming information stored in a first control module; and controlling a display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format. It should be noted that, for the implementation process of the driving method, reference may be made to the working process of the embodiment of the display device, and details are not repeated here.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: when the external device is accessed, the access mode of the external device is determined according to the pre-stored port definition information. And when the access mode of the external equipment is determined to be the first access mode, controlling a display to display a timing information user interface based on the stored timing information of the data signal input by the external equipment received from the external device interface and the timing information corresponding to the set data format. And when the access mode of the external equipment is determined to be the second access mode, controlling the display to display a timing information user interface based on the timing information of the data signal input by the external equipment received from the external device interface. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: and in response to a selection control instruction input from the user interface, controlling the display to display the EDID user interface so as to update the EDID parameter information, so that an external device accessing the external device interface can transmit a corresponding data signal based on the updated EDID parameter information. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: when the data signal input by the external device interface is the data signal with the set data format, the data signal is subjected to down-sampling processing, and then the display is controlled to display. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: when the external equipment is connected with the display equipment and is electrically connected with the first control module, equipment access instructions are input to the response pins of the second control module through the first control module. And when the display device is pulled out of the external device and is disconnected with the first control module, inputting a device pulling-out instruction to a response pin of the second control module through the first control module. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

Based on the same inventive concept, the driving method in some embodiments of the present application may include: and responding to a device access instruction of the input response pin, and controlling the display to display the device to access the UI interface. And responding to a device pull-out instruction input by the response pin, and controlling the display to display the device to pull out the UI interface. It should be noted that, for implementation of the driving method, reference may be made to working processes of the above embodiments of the display device, which is not described herein again.

The above embodiments are only used for illustrating the technical solutions 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, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart 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

1. A display device, comprising:

a display configured to display a user interface;

2. The display device of claim 1, wherein the controller comprises:

a first control module configured to receive a data signal input by the external device from the external device interface and store trimming information corresponding to the data signal;

and the second control module is configured to acquire the timing information stored in the first control module, and control the display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format.

3. The display device of claim 2, wherein the second control module is further configured to:

receiving a data signal input by the external equipment through the first control module;

sending a timing acquisition instruction to the first control module to acquire timing information stored in the first control module;

when the acquired timing information is the timing information corresponding to the set data format, judging whether the timing information acquired from the first control module at this time is consistent with the timing information stored when the external equipment is inserted last time;

if yes, controlling the display to display a ticketing information user interface directly based on stored ticketing information when the external equipment is inserted last time;

if not, updating the stored dimming information to the dimming information obtained from the first control module, and controlling the display to display a dimming information user interface based on the dimming information obtained from the first control module.

4. The display device of claim 3, wherein the second control module is further configured to:

when the acquired timing information is not the timing information corresponding to the set data format, acquiring the timing information of the data signal received from the first control module;

judging whether the timing information of the data signal received from the first control module at this time is consistent with the timing information stored when the external equipment is inserted last time;

if yes, directly controlling the display to display a dimming information user interface based on the dimming information stored when the external equipment is inserted last time;

if not, updating the stored timing information to the timing information of the data signal received from the first control module at this time, and controlling the display to display a timing information user interface based on the timing information of the data signal received from the first control module at this time.

5. A display device, characterized in that the display device comprises:

a display configured to display a user interface;

a controller configured to:

6. The display device of claim 5, wherein the controller comprises:

the first control module is configured to receive a data signal input by the external device from the external device interface and store dimming information corresponding to the data signal when the access mode of the external device is determined to be the first access mode;

a second control module configured to:

when the access mode of the external equipment is determined to be a first access mode, acquiring the timing information stored in the first control module, and controlling the display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format;

and when the access mode of the external equipment is determined to be a second access mode, receiving a data signal input by the external equipment from the external device interface, and controlling the display to display a timing information user interface based on the timing information of the data signal input by the external equipment received from the external device interface.

7. The display device of claim 6, wherein the second control module is further configured to:

when the access mode of the external equipment is determined to be a second access mode, determining timing information of a data signal input by the external equipment received from the external device interface;

judging whether the timing information of the data signal received this time is consistent with the stored timing information of the data signal received when the external equipment is inserted last time;

if not, updating the stored timing information to the timing information of the data signal received this time, and controlling the display to display a timing information user interface based on the timing information of the data signal received this time.

8. A driving method, characterized by comprising:

and after receiving the data signal input by the external equipment from the external device interface, controlling the display to display a timing information user interface.

9. The driving method according to claim 8, wherein the controlling the display to display a timing information user interface after receiving the data signal input from the external device interface comprises:

receiving a data signal input by the external equipment from the external device interface, and storing timing information corresponding to the data signal;

obtaining the timing information stored in the first control module;

and controlling the display to display a timing information user interface based on the acquired timing information and the timing information corresponding to the set data format.

10. A driving method, characterized by comprising:

when the external device is accessed, determining an access mode of the external device according to pre-stored port definition information: