CN111064982B

CN111064982B - Display control method, storage medium and display device

Info

Publication number: CN111064982B
Application number: CN201911295609.5A
Authority: CN
Inventors: 秦敬波; 王春晖
Original assignee: Qingdao Hisense Media Network Technology Co Ltd
Current assignee: Vidaa Netherlands International Holdings BV
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2022-03-29
Anticipated expiration: 2039-12-16
Also published as: CN111064982A

Abstract

The application provides a display control method, a storage medium and a display device, and particularly detects the image resolution of a graphic layer signal and a video layer signal when an instruction of superimposing the graphic layer signal on the video layer signal is received, and closes a liquid crystal driving acceleration function in a screen control panel when the graphic layer signal and the video layer signal are both larger than corresponding preset resolution values, namely when the graphic layer signal and the video layer signal are both high-resolution image signals. The liquid crystal driving acceleration technology is an algorithm built in the TCON and is used for accelerating the gray scale response time, the OD function is started to increase the burden of a controller of the display equipment due to the complexity of the control process, the occupation of the controller on hardware resources can be greatly reduced by closing the liquid crystal driving acceleration function, the bandwidth of the controller for user interface display is expanded, and high-definition pictures and video resources can be played smoothly at the same time.

Description

Display control method, storage medium and display device

Technical Field

The present embodiments relate to a display technology, and more particularly, to a display control method, a storage medium, and a display apparatus.

Background

With the continuous development of television technology, the functions of televisions are also more and more powerful, and the original technology that only television programs can be watched is developed to play various video files at present.

For example, televisions offer scenes that play pictures and videos simultaneously to meet user needs. To ensure the exhibition effect, the picture is usually displayed On one side of the tv Screen in an OSD (On Screen Display) manner, and the video is played in a full-Screen loop. However, the above-mentioned way of playing pictures and videos simultaneously increases the data processing amount of the controller of the television and the data interaction amount between the controller and the memory. Therefore, considering the limitation of the processing capability of the current television controller, the resolution of the picture and/or video is reduced to prevent the problem of video screen-splash or picture-jitter in the played picture caused by playing high-definition picture and video simultaneously.

However, the above-mentioned method of reducing the resolution of the picture and/or video has a problem that the picture and font finally displayed are blurred, and the physical examination of the user is poor.

Disclosure of Invention

The embodiment of the application provides a display control method, a storage medium and a display device, so that the display device can smoothly play high-definition pictures and video resources at the same time.

According to a first aspect of embodiments of the present application, there is provided a display apparatus, including:

the display is used for displaying a playing picture;

the user interface is used for receiving instructions input by a user;

a controller for performing:

if an instruction of superposing a graphic layer signal on a video layer signal is received, detecting whether the image resolution of the graphic layer signal is greater than or equal to a first resolution;

detecting whether an image resolution of a video layer signal is greater than or equal to a second resolution if a graphics layer signal having an image resolution greater than or equal to the first resolution is to be superimposed on the video layer signal;

and if the image resolution of the video layer signal is greater than or equal to the second resolution, controlling to close an LCD driving acceleration (OD) function in a screen control panel (TCON, timing controller).

According to a second aspect of embodiments of the present application, there is provided a display control method including:

detecting that an image resolution of a graphics layer signal is greater than or equal to a first resolution if an instruction to superimpose the graphics layer signal on a video layer signal is received;

and if the image resolution of the video layer signal is greater than or equal to the second resolution, controlling to close the liquid crystal driving acceleration function in the screen control panel.

According to a third aspect of embodiments of the present application, there is provided a computer storage medium, which may store a program that, when executed, may implement the method of the second aspect of embodiments of the present application.

As can be seen from the foregoing embodiments, in the display control method, the storage medium, and the display device provided in the embodiments of the present application, when an instruction to superimpose a graphics layer signal on a video layer signal is received, the image resolutions of the graphics layer signal and the video layer signal are detected, and when both of the graphics layer signal and the video layer signal are greater than corresponding preset resolution values, that is, when both of the graphics layer signal and the video layer signal are high-resolution image signals, the liquid crystal driving acceleration function in the screen control board is turned off. The liquid crystal driving acceleration technology is an algorithm built in the TCON and is used for accelerating the gray scale response time, the OD function is started to increase the burden of a controller of the display equipment due to the complexity of the control process, the occupation of the controller on hardware resources can be greatly reduced by closing the liquid crystal driving acceleration function, the bandwidth of the controller for user interface display is expanded, and high-definition pictures and video resources can be played smoothly at the same time.

Therefore, in the embodiment, when the high-definition picture and the video resource are played simultaneously, the OD function is turned off, and compared with the existing mode of reducing the resolution of the picture and/or the video, a clearer playing picture can be provided for the user without reducing the visual experience of the user.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus;

fig. 2 is a block diagram schematically showing a configuration of the control apparatus 100 in fig. 1;

fig. 3 is a block diagram schematically illustrating a configuration of the display device 200 in fig. 1;

a block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 4;

fig. 5 is a schematic view exemplarily showing a user interface provided by the display device 200 by operating the control apparatus 100;

fig. 6a and 6b are schematic views exemplarily showing another user interface provided by the display device 200 by operating the control apparatus 100;

a basic flow diagram of a display control method is illustrated in fig. 7.

Detailed Description

To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the 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, but not all the embodiments.

In order to provide a clear and smooth playing picture for a user, the embodiment provides a display control method, a storage medium and a display device. It should be noted that the method provided in this embodiment is not only applicable to televisions, but also applicable to other display devices, such as computers, tablet computers, and the like.

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only for the purpose of facilitating understanding of the contents of the present application, and do not represent limitations on the scope of the present application.

The term "module," as used in various embodiments of the present application, may refer 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.

The term "remote control" as used in the embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application) that is capable of wirelessly controlling the electronic device, typically over a short distance. The component may typically be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be generally referred to as a motherboard (motherboard) or a host chip or controller.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus. As shown in fig. 1, the control apparatus 100 and the display device 200 may communicate with each other in a wired or wireless manner.

Among them, the control apparatus 100 is 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 key on the control device 100, and the display device 200 responds to the channel up/down operation.

The control device 100 may be a remote controller 100A, which includes infrared protocol communication or bluetooth protocol communication, and other short-distance communication methods, etc. to control the display apparatus 200 in a wireless or other 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. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, and the like. For example, the display device 200 is controlled using an application program running on the smart device. The application program may provide various controls to a user through an intuitive User Interface (UI) on a screen associated with the smart device through configuration.

For example, the mobile terminal 100B may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B may be caused to establish a control instruction protocol with the display device 200 to implement the functions of the physical keys as arranged in the remote control 100A by operating various function keys or virtual buttons of the user interface provided on the mobile terminal 100B. The audio and video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

The display apparatus 200 may provide a network television function of a broadcast receiving function and a computer support function. The display device may be implemented as a digital television, a web television, an Internet Protocol Television (IPTV), or the like.

The display device 200 may be a liquid crystal display, an organic light emitting display, a projection device. The specific display device type, size, resolution, etc. are not limited.

The display apparatus 200 also performs data communication with the server 300 through various communication means. 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 300 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 servers 300 may be a group or groups of servers, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.

Fig. 2 is a block diagram illustrating the configuration of the control device 100. As shown in fig. 2, the control device 100 includes a controller 110, a memory 120, a communicator 130, a user input interface 140, an 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 100A or an interaction of touching a touch panel disposed on the remote controller 100A is detected, the controller 110 may control to generate a signal corresponding to the detected interaction and transmit the signal to the display device 200.

And a memory 120 for storing 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 commands 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 button 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 an infrared signal interface 131 and a radio frequency signal interface 132. For example: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

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 instruction regarding controlling the display apparatus 200 to the control apparatus 100 through voice, touch, gesture, press, and the like.

The output interface 150 outputs a user 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 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 an image, and the like. For example, the remote controller 100A may receive an output signal such as audio, video, or data from the output interface 150, and display the output signal in the form of an image on the display 154, in the form of audio on the sound output interface 153, or in the form of vibration on the 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.

A hardware configuration block diagram of the display device 200 is exemplarily shown in fig. 3. As shown in fig. 3, the display apparatus 200 may include a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a memory 260, a user interface 265, a video processor 270, a display 275, an audio processor 280, an audio output interface 285, and a power supply 290.

The tuner demodulator 210 receives the broadcast television signal in a wired or wireless manner, may perform modulation and demodulation processing such as amplification, mixing, and resonance, and is configured 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 user selected frequency of the television channel 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 adopted; and can demodulate the analog signal and the digital signal according to the different kinds of the received television signals.

In other exemplary embodiments, the tuning demodulator 210 may also be in an external device, 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.

The communicator 220 is a component for communicating with an external device or an external server 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. The communicator 220 may include a network communication protocol module or a near field communication protocol module, such as a WIFI module 221, a bluetooth communication protocol module 222, and a wired ethernet communication protocol module 223, so that the communicator 220 may receive a control signal of the control device 100 according to the control of the controller 250 and implement the control signal as a WIFI signal, a bluetooth signal, a radio frequency signal, and the like.

The detector 230 is a component of the display apparatus 200 for collecting signals of an external environment or interaction with the outside. 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.

In some other exemplary embodiments, the detector 230, which may further include an image collector 232, such as a camera, a video camera, etc., may be configured 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.

In some other exemplary embodiments, the detector 230 may further include a light receiver for collecting the intensity of the ambient light to adapt to the display parameter variation of the display device 200.

In some other exemplary embodiments, the detector 230 may further include a temperature sensor, such as by sensing an ambient temperature, and the display device 200 may adaptively adjust a display color temperature of the image. For example, when the temperature is higher, the display apparatus 200 may be adjusted to display a color temperature of an image that is cooler; when the temperature is lower, the display device 200 may be adjusted to display a warmer color temperature of the image.

The external device interface 240 is a component for providing 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 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.

The external device interface 240 may include: a High Definition Multimedia Interface (HDMI) terminal 241, a Composite Video Blanking Sync (CVBS) terminal 242, an analog or digital Component terminal 243, a Universal Serial Bus (USB) terminal 244, a Component terminal (not shown), a red, green, blue (RGB) terminal (not shown), and the like.

The controller 250 controls the operation of the display device 200 and responds to the operation of the user by running various software control programs (such as an operating system and various application programs) stored on the memory 260.

As shown in fig. 3, the controller 250 includes a Random Access Memory (RAM)251, a Read Only Memory (ROM)252, a graphics processor 253, a CPU processor 254, a communication interface 255, and a communication bus 256. The RAM251, the ROM252, the graphic processor 253, and the CPU processor 254 are connected to each other through a communication bus 256 through a communication interface 255.

The ROM252 stores various system boot instructions. When the display apparatus 200 starts power-on upon receiving the power-on signal, the CPU processor 254 executes a system boot instruction in the ROM252, copies the operating system stored in the memory 260 to the RAM251, and starts running the boot operating system. After the start of the operating system is completed, the CPU processor 254 copies the various application programs in the memory 260 to the RAM251 and then starts running and starting the various application programs.

And a graphic processor 253 for generating various graphic objects such as icons, operation menus, and user input instruction display graphics, etc. The graphic processor 253 may include an operator for performing an operation by receiving various interactive instructions input by a user, and further displaying various objects according to display attributes; and a renderer for generating various objects based on the operator and displaying the rendered result on the display 275.

A CPU processor 254 for executing 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.

In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. A main processor for performing some initialization operations of the display apparatus 200 in the display apparatus 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 standby mode or the like of the display apparatus.

The communication interface 255 may include a first interface to an nth interface. These interfaces may be network interfaces that are connected to external devices via a network.

The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user input command for selecting a GUI object displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user input command.

Where the object may be any one of the selectable objects, such as a hyperlink or an icon. The operation related to the selected object is, for example, an operation of displaying a link to a hyperlink page, document, image, or the like, or an operation of executing a program corresponding to the object. The user input command for selecting the GUI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch panel, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

A memory 260 for storing various types of data, software programs, or applications for driving and controlling the operation of the display device 200. The memory 260 may include volatile and/or nonvolatile memory. And the term "memory" includes the memory 260, the RAM251 and the ROM252 of the controller 250, or a memory card in the display device 200.

In some embodiments, the memory 260 is specifically used for storing an operating 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 such as visual effect images for configuring various GUIs provided by the display 275, various objects related to the GUIs, and selectors for selecting GUI objects are stored.

In some embodiments, memory 260 is specifically configured to store drivers for tuner demodulator 210, communicator 220, detector 230, external device interface 240, video processor 270, display 275, audio processor 280, etc., 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 specifically stores 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.

A block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 4. The operating system architecture comprises an application layer, a middleware layer and a kernel layer from top to bottom.

The application layer, the application programs built in the system and the non-system-level application programs belong to the application layer. Is responsible for direct interaction with the user. 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.

Here, HTML, which is called HyperText Markup Language (HyperText Markup Language), is a standard Markup Language for creating web pages, and describes the web pages by Markup tags, where the HTML tags are used to describe characters, graphics, animation, sound, tables, links, etc., and a browser reads an HTML document, interprets the content of the tags in the document, and displays the content in the form of web pages.

CSS, known as Cascading Style Sheets (Cascading Style Sheets), is a computer language used to represent the Style of HTML documents, and may be used to define Style structures, such as fonts, colors, locations, etc. The CSS style can be directly stored in the HTML webpage or a separate style file, so that the style in the webpage can be controlled.

JavaScript, a language applied to Web page programming, can be inserted into an HTML page and interpreted and executed by a browser. The interaction logic of the Web application is realized by JavaScript. The JavaScript can package a JavaScript extension interface through a browser, realize the communication with the kernel layer,

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 which is middleware related to communication with an external device, middleware which provides a browser environment in which each application program in the display device operates, and the like.

The kernel layer provides 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.

The kernel layer also provides communication between system software and hardware, and provides device driver services for various hardware, such as: provide display driver for the display, provide camera driver for the camera, provide button driver for the remote controller, provide wiFi driver for the WIFI module, provide audio driver for audio output interface, provide power management drive for Power Management (PM) module etc..

A user interface 265 receives various user interactions. Specifically, it is used to transmit an input signal of a user to the controller 250 or transmit an output signal from the controller 250 to the user. For example, the remote controller 100A may transmit an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user interface 265, and then the input signal is transferred to the controller 250 through the user interface 265; alternatively, the remote controller 100A 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, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 receives the user input commands through the GUI. Specifically, the user interface 265 may receive user input commands for controlling the position of a selector in the GUI to select different objects or items.

Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user interface 265 receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 270 is configured to receive an external video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display 275.

Illustratively, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is configured to demultiplex an input audio/video data stream, where, for example, an input MPEG-2 stream (based on a compression standard of a digital storage media moving image and voice), the demultiplexing module demultiplexes the input audio/video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, 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.

The frame rate conversion module is configured to convert a frame rate of an input video, for example, convert a frame rate of an input 60Hz video into a frame rate of 120Hz or 240Hz, where a common format is implemented by using, for example, an interpolation frame method.

And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

A display 275 for receiving the image signal from the video processor 270 and displaying the video content, the image and the menu manipulation interface. The display video content may be 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, while displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, the display 275 may include a display screen assembly for presenting a picture and a driving assembly for driving the display of an image. Alternatively, a projection device and projection screen may be included, provided display 275 is a projection display.

The audio processor 280 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 audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played by the speaker 286.

Illustratively, audio processor 280 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), high efficiency AAC (HE-AAC), and the like.

The audio output interface 285 is used for receiving an audio signal output by the audio processor 280 under the control of the controller 250, and the audio output interface 285 may include a speaker 286 or an external sound output terminal 287, such as an earphone output terminal, for outputting to a generating device of an external device.

In other exemplary embodiments, video processor 270 may comprise one or more chips. Audio processor 280 may also comprise one or more chips.

And, in other exemplary embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated with the controller 250 in one or more chips.

And a power supply 290 for supplying power supply support to the display apparatus 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.

Fig. 5 is a schematic view illustrating a user interface provided by the display device 200 by operating the control apparatus 100. As shown in fig. 5, the display device may provide a playing screen 201, which may be at least one of an image, text, and video content, to the display. When a user inputs an instruction instructing the display device to display its device information by operating the control apparatus 100 while displaying a play screen such as video content on the display of the display device, the display device may superimpose a device information presentation page 202 on the current play screen in response to the input instruction, wherein the device information presentation page 202 may display the device information on the screen for a long time in the manner of an animated version EPOS and present the device information content and the play screen content in turn for a long time.

In the above-mentioned display mode, the user can select whether to independently display the device information display page 202 or the playing screen 201 by operating the control device 100, and the user can exit the display mode to operate other applications installed in the display device, such as opening a streaming media application to experience streaming media video therein.

In addition, the device information presentation page can be displayed at any position of the display, such as at the left side of the screen; the device information presentation page is used for presenting device information, where the device information may include a device brand (e.g., manufacturer AA), a device model, a device price, and a device characteristic (e.g., OLED TV with high definition 4K function), and the device information may be displayed in the form of pictures, characters, and the like. For example, in the display interface shown in fig. 5, the device information display page 202 includes a brand of display device, the display device has a high-definition 4K function, and the screen is an OLED screen and has the characteristics of super local dimming, dolby vision, and super wide color gamut.

The display device may simultaneously display application scenes of the device information display page 202 and the playing screen 201, and may also display a scene in which a menu option page 203 operable by a user is superimposed on the playing screen 201 and is played simultaneously.

Fig. 6a and 6b are schematic views illustrating another user interface provided by the display device 200 by operating the control apparatus 100. For example, as shown in FIG. 6a, by a user pressing a "menu" key on the control device, the display apparatus may provide a GUI to the display in response to the key input instruction, in which a play screen 201 and a menu option page 203 containing a plurality of items 2031 to 2034 are displayed, and a selector 204 indicating that any one item is selected, and the position of the selector in the GUI may be moved by the user's input operating the control device to change the selection of a different item.

It should be noted that an item refers to a visual object displayed in a GUI provided by a display device to represent corresponding content such as an icon, a thumbnail, a link, and the like. The presentation forms of items are often diverse. For example, the items may include text content and/or images for displaying thumbnails related to the text content. As another example, the item may be text and/or an icon of an application.

It should also be noted that the display form of the selector may be the focus object. The movement of the display focus object in the display apparatus 200 may be controlled to select or control items according to an input of a user through the control device 100. Such as: the user may select and control items by controlling the movement of the focus object between items through the direction keys on the control device 100. The identification form of the focus object is not limited. For example, as shown in fig. 6a, the position of the focus object is realized or identified by setting the background color of the item, and the position of the focus object may also be identified by changing the border line, size, transparency, and outline and/or font of the text or image of the focused item.

In fig. 6a, when the user operates the control means to indicate that the selector 204 has selected an item 2034, such as a user pressing a directional key on the control means, as shown in fig. 6b, the display device displays a menu option page 2034 on the display in response to the key input instruction, the menu option page corresponding to detailed menu options of the items, including items 341-346. In FIG. 6b, when the selector 204 selects the item 341, the lower menu options associated with the item 341 and including the items 3411 to 3414 are displayed.

uhuo, the display interface in fig. 5, may provide an item, such as a Store Mode item, in the menu option page 203 provided in fig. 6 by selecting, and further superimpose and display the device information display page 202 shown in fig. 5 on the playing screen, and may also be a Mode of inputting an instruction by operating a shortcut key or voice on the control device 100, which is not limited in this embodiment.

For the implementation method of the display interface provided in fig. 5 and 6, in general, the controller superimposes the graphics layer signal (e.g., the device information presentation page 202 in fig. 5 or the menu option page 203 in fig. 6) on the video layer signal (e.g., the playing screen 201 in fig. 5 and 6), and then sends the superimposed video image signal to the display screen for display.

The video layer signal may be a video signal or an image signal, which may be a video signal derived from a network media or a local media, or an image signal derived from a network media or a local media, and specifically may include video programs such as a network movie, a television show, news, a variety program, and an advertisement; but also self-timer Dv short, video chat, video games and other video programs. The graphics layer signal is also called OSD (on screen menu mode). The graphic layer signal is from a graphic layer signal generator arranged in the display device, and specifically, the OSD layer signal mainly includes user settings, a prompt menu, a third party application layer and the like.

When the display device needs to display the video layer signal and the graphic layer signal at the same time, the controller needs to read related data from the memory at the same time before superimposing the two layers of signals, and perform corresponding operations such as image processing, respectively. Moreover, when the image resolution of the video layer signal and the graphics layer signal is improved, for example, when the 4K video layer signal and the 4K graphics layer signal are selected to be superimposed, the data processing amount of the controller is further increased, and the bandwidth of the controller and the memory of the current display device is usually not enough to process the application form of displaying the high-definition video layer signal and the graphics layer signal simultaneously, so that the problem of screen blurring of the video layer image or image shaking of the graphics layer image is easily caused.

In order to realize that a display device can smoothly display a high-definition video layer signal and a graphic layer signal at the same time, the embodiment provides a display control method. A basic flow diagram of a display control method is illustrated in fig. 7. As shown in fig. 7, the method specifically includes the following steps:

s701: if an instruction to superimpose a graphics layer signal on a video layer signal is received, it is detected whether an image resolution of the graphics layer signal is greater than or equal to a first resolution.

For example, if the display device 200 receives an instruction for displaying device information input by the user through the control device 100, that is, the display device 200 is controlled to enter the display of the device information, after receiving the instruction, the display device 200 converts the instruction into a browser rule code, and sends the browser rule code to a browser in a display device System, the browser sends the browser rule code to a System UI, the System UI generates an instruction for superimposing a graphics layer signal on a video layer signal according to the browser rule code, and then a graphics layer signal generator in the display device 200 outputs the graphics layer signal.

Then, when the graphics layer signal generator has a surface output, namely before the video layer signal and the graphics layer signal are superposed to generate a video image signal, capturing a graphics layer picture frame through the graphics layer signal; then, according to the analysis result of the pixel values of the pixels in the picture frame of the graphics layer, it is determined whether the image resolution of the graphics layer corresponding to the graphics layer signal is greater than or equal to a first resolution, where a specific value of the first resolution may be determined according to a controller of the display device 200 and a Data processing capability of a DDR (Double Data Rate SDRAM), for example, the first resolution is set to 4K for the DDR 3.

If the graphics layer signal with the image resolution being greater than or equal to the first resolution is to be superimposed on the video layer signal, step S702 is executed, otherwise, the graphics layer signal and the video layer signal are directly subjected to processing such as hybrid coding, and the processed video image signal is transmitted to a TCON board of a display in the display device, and after the TCON board performs corresponding processing on the video image signal, the liquid crystal driving acceleration function in the TCON board is kept on, and liquid crystal molecules in the display are driven to display an image.

S702: it is detected whether an image resolution of the video layer signal is greater than or equal to a second resolution.

When a signal source channel has video layer signals output, namely before the video layer signals and the graphic layer signals are superposed to generate video image signals, intercepting video layer picture frames from the video layer signals; then, according to the analysis result of the pixel values of the pixels in the picture frame of the video layer, it is determined whether the image resolution of the video layer corresponding to the video layer signal is greater than or equal to a second resolution, where a specific value of the second resolution may be determined according to a controller of the display device 200 and a Data processing capability of a DDR (Double Data Rate SDRAM). In addition, the first resolution and the second resolution may be set equal, such as both set to 4K.

If the image resolution of the video layer signal is greater than or equal to the second resolution, step S703 is performed. Otherwise, the image layer signal and the video layer signal are directly subjected to processing such as mixed coding, and the processed video image signal is transmitted to a TCON board of a display in the display equipment, and the TCON board drives liquid crystal molecules in the display to display images after correspondingly processing the video image signal.

S703: and controlling to close the liquid crystal driving acceleration function in the screen control panel.

The TCON board is also called a logic board or a screen control board, and functions in a liquid crystal display device as a video display board in a CRT (Cathode Ray Tube) display device, but there is an essential difference that the screen control board is not a pure signal amplifier, and inputs LVDS format signals rather than RGB format signals. The screen control board is used for converting the image video image signals in LVDS or TTL format sent by the digital board into control signal row and column signals which can be identified by the screen, and controlling the work of MOSFET (field effect transistor) tubes in the screen so as to control the torsion degree of liquid crystal molecules.

The OverDrive is an algorithm built in the TCON, the principle is based on increasing the driving voltage of the liquid crystal cell, and the OverDrive technology can deflect the liquid crystal and accelerate the gray scale response time. The maximum inversion voltage of the liquid crystal itself is in the stage of "black → white → black", and the inversion voltages of all gray scale portions are all smaller than those of the portion of "black → white → black", moreover, the premise of the over drive technology is that only the inversion voltage of the gray scale part is boosted, the maximum value of the boosting does not exceed the maximum voltage of the part of black → white → black, but the over drive of the part of black → white → black is not adjusted, therefore, the voltage adjustment of the over drive is completely within the safe range, and the service life of the liquid crystal screen is not influenced, namely the response time of black → white → black of the liquid crystal display is still 8ms when most gray scales respond, the response time of gray scale (GTG) using OD technology is basically less than 4ms, which is also in line with the daily use habit of people, because more than 90% of the images we would realize on a daily basis are color (i.e., gray scale) based.

Based on the above description, the over drive function provided in the panel control board can reduce the liquid crystal response time, and is mainly used to improve the tailing phenomenon of the liquid crystal panel. However, due to the limitation of the over drive itself, the trailing limitation of the liquid crystal is not completely eliminated, but the phenomenon is only alleviated, the improvement of the high-speed moving picture can be visually perceived by the user, but the improvement of the normal moving picture is hardly perceived visually. The high-definition video source played is usually a specially-made high-definition video and cannot be influenced by the over drive function. However, due to the complexity of the control process, the burden of the controller of the display device is increased by starting the over drive function, and when the display device needs to display the video layer signal and the graphic layer signal at the same time, the occupation of the over drive function on the hardware resources of the controller can be greatly reduced, the bandwidth of the controller for displaying the user interface is expanded, and the user interface can be smoothly displayed. Moreover, the over drive function is almost imperceptible to a user visually due to improvement of the trailing problem of the liquid crystal in the high-definition video picture, so that the over drive function is turned off when the high-definition picture and the video resource are played simultaneously, and compared with an existing mode of reducing the resolution of the picture and/or the video, a clearer playing picture can be provided for the user while the visual experience of the user is not reduced.

It should be noted that, in step S701, if an instruction to superimpose the graphics layer signal on the video layer signal is received, it may be detected whether the image resolution of the graphics layer signal is greater than or equal to the first resolution and whether the image resolution of the video layer signal is greater than or equal to the second resolution at the same time, and if both of the image resolution and the image resolution of the video layer signal satisfy the detection condition, the liquid crystal driving acceleration function in the screen control board may be controlled to be turned off.

In addition, in some embodiments, the video layer signal and the graphics layer signal to be displayed may be stored in the display device in advance, and/or the image resolution of the stored video layer signal and the graphics layer signal may also be preset in advance, for example, a 4K picture and a 4K video are stored in the display device in advance. At this time, before receiving the instruction of superimposing the graphics layer signal on the video layer signal, it may also be simultaneously detected whether the image resolution of the graphics layer signal is greater than or equal to the first resolution and whether the image resolution of the video layer signal is greater than or equal to the second resolution, and if both of them meet the detection condition, the liquid crystal driving acceleration function in the screen control board may be controlled to be turned off when receiving the instruction of superimposing the graphics layer signal on the video layer signal. Here, the manner of detecting the signal resolution is not limited.

In addition, in some embodiments, before receiving the instruction of superimposing the graphic layer signal on the video layer signal, whether the image resolution of the video layer signal is greater than or equal to the second resolution may be detected, if so, when receiving the instruction of superimposing the graphic layer signal on the video layer signal, whether the image resolution of the graphic layer signal is greater than or equal to the first resolution may be detected, and if so, the liquid crystal driving acceleration function in the screen control board may be controlled to be turned off.

Further, based on TCON, which is a timer/counter control register, the byte address is usually 88H, and the bit address is 88H-8FH from low to high, wherein the high four bits control the timer 1 and the low four bits control the timer 0. Therefore, the register bit related to the over drive can be set in a software mode, and the purpose of starting or closing the over drive function is achieved.

In this embodiment, a command for setting to turn on or turn off the over drive function is initiated by a System UI process, and the System UI has a lower authority and cannot directly modify the value of the register, so that, when it is required to control the liquid crystal driving acceleration function in the screen turn-off control panel, the embodiment sets the System UI to send a first message for turning off the liquid crystal driving acceleration function in the screen turn-off control panel to a TV Main process with a higher authority so as to operate the register through the TV Main process; then, the TV Main process configures an over drive function register in the TCON board to a first preset value according to the first message, for example, sets a register corresponding to the over drive function to 0, so as to close the over drive function. Wherein, the System UI and the TV Main process may transmit messages by using an RPC (Remote Procedure Call Protocol) inter-process communication mode.

Further, based on the above operation, the user may select whether to individually display the device information display page 202 or the playback screen 201 through the operation control device 100 in the display mode, and may also perform an operation of exiting the display mode, and based on the above operation, this embodiment further provides an implementation scheme for dynamically adjusting the occupancy of the TCON to the hardware bandwidth, that is, after step S703, the method further includes the following steps:

s704: and if an instruction of canceling the superposition of the graphic layer signal on the video layer signal is received, controlling to start a liquid crystal driving acceleration function in the screen control panel.

Specifically, the System UI may send a second message to the TV Main process to turn on the liquid crystal driving acceleration function in the screen control panel; and then, the TV Main process configures an over drive function register in the screen control panel to a second preset value according to the second message, and if the register corresponding to the over drive function is set to be 1, the over drive function is started.

Further, in some working modes of the display device, as shown in fig. 5, in order to improve user experience and prevent blurring of pictures and fonts displayed in correspondence with a picture layer, the image resolution of the picture layer signal is usually set to be high resolution, and the video layer signal is a specially-made high-definition signal that is not affected by the over drive function. While in other modes of operation, the picture layer signal is typically set to a signal with a lower image resolution. In order to reduce the data processing amount, the present embodiment further performs the following steps before step S701:

and detecting whether the working mode of the display equipment is a preset working mode.

For example, the working mode of the display device includes a shop mode and a normal mode, and the shop mode is set as a preset working mode.

If the working mode of the display device is the preset working mode, step S701 is executed, otherwise, the on state of the OverDrive function is maintained.

Based on the same inventive concept as the display control method and the display apparatus described above, the present embodiment also provides a computer storage medium that can store a program that, when executed, can implement the display control method provided in any of the implementations described above.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A display device, comprising:

a display;

the user interface is used for receiving instructions input by a user;

a controller for performing:

2. The display device according to claim 1, wherein controlling a liquid crystal driving acceleration function in the off-screen control board includes:

the System UI sends a first message for closing the liquid crystal driving acceleration function in the screen control panel to the TV Main process;

and the TV Main process configures a register corresponding to a liquid crystal driving acceleration function in the screen control panel to be a first preset value according to the first message so as to close the liquid crystal driving acceleration function.

3. The display device according to claim 1, wherein after controlling turning off the liquid crystal driving acceleration function in the screen control board, the controller is further configured to:

and if an instruction of canceling the superposition of the graphic layer signal on the video layer signal is received, controlling to start a liquid crystal driving acceleration function in the screen control panel.

4. The display device according to claim 3, wherein controlling to turn on a liquid crystal driving acceleration function in the screen control board includes:

the System UI sends a second message for starting a liquid crystal driving acceleration function in the screen control panel to the TV Main process;

and the TV Main process configures a register corresponding to the liquid crystal driving acceleration function in the screen control panel to be a second preset value according to the second message so as to start the liquid crystal driving acceleration function.

5. The display device of claim 1, wherein the controller is further configured to:

detecting whether the working mode of the display equipment is a preset working mode or not;

and if the working mode of the display equipment is a preset working mode, detecting that the image resolution of the graphic layer signal is greater than or equal to a first resolution when an instruction of overlaying the graphic layer signal on the video layer signal is received.

6. The display device according to claim 1, wherein the generation method of the instruction to superimpose the graphics layer signal on the video layer signal comprises:

if an instruction for displaying the device information input by the user is received, an instruction for superimposing the graphic layer signal on the video layer signal is generated.

7. A display control method, characterized in that the method comprises:

8. The method of claim 7, wherein controlling the liquid crystal drive acceleration function in the off screen control panel comprises:

9. The method of claim 7, further comprising:

10. A computer storage medium, characterized in that the computer storage medium can store a program which, when executed, can implement the method of any one of claims 7 to 9.