CN112073774A - Image quality processing method and display device - Google Patents

Abstract

The embodiments of the present application show an image quality processing method and a display device, which are especially suitable for a social TV. The technical solutions shown in the embodiments of the present application, on the premise of distinguishing signal input ends, allocate parameters to be adjusted by different signal input ends, For the wired video input through the first interface, the parameters to be adjusted of the wired video signal are directly adjusted on the second chip, so as to achieve the image quality processing effect of the wired video signal. For the first video signal input through the second interface, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip generates the first chip according to the first parameter to be adjusted and sends it to the second chip The second chip adjusts the video signal received from the first chip according to the second adjustment parameter, and finally sends the adjusted video signal to the display screen. The above-mentioned method effectively avoids the occurrence of the problems of outline and color distortion in the process of image quality processing of the graphics layer signal.

Description

Image quality processing method and display device

This application claims the priority of the Chinese patent application with the application number 201910498198.3 filed with the State Intellectual Property Office on June 10, 2019. The entire contents of which are incorporated herein by reference.

technical field

The embodiments of the present application relate to display technologies. More specifically, it relates to an image quality processing method and a display device.

Background technique

Currently, because the display device can provide users with playback pictures such as audio, video, pictures, etc., it has received widespread attention from users. In recent years, users' demands for functions of display devices are increasing day by day. For example, users want to watch high-definition cable TV through a display device, and sometimes users want to watch Internet TV through a display device.

The video signal of the IPTV can come from the network or the USB. Generally, the video signal of the IPTV includes a graphics layer signal and a video layer signal. Before the set-top box chip superimposes the video layer signal and the graphics layer signal, it will not perform image quality processing on the video signal, but directly mix and superimpose the signal into an HDMI video signal. , because the image quality processing involves the processing of chroma, clarity, and noise reduction, and different video signals have different image quality processing effects, so the graphics layer signal of the set-top box will change with different image quality processing. , and even the outline problem occurs due to the high noise reduction intensity.

Therefore, there is an urgent need for a method for image quality processing, which can ensure that the color of the graphics layer signal does not change while the image quality of the video signal is processed, thereby giving the user a good sense of experience.

SUMMARY OF THE INVENTION

Based on the above technical problems, the purpose of the present application is to provide an image quality processing method and a display device.

A first aspect of an embodiment of the present application shows an image quality processing method, which is applied to a display device. The display device includes a display screen, a second chip connected to the display screen, and a first chip connected to the second chip. The method includes: :

the second chip receives a parameter to be adjusted, and the parameter to be adjusted includes a first parameter to be adjusted and a second parameter to be adjusted;

the second chip determines the channel to which the signal source is connected;

In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, the second chip adjusts the video signal received from the first interface according to the adjustment parameter;

In response to the channel connected to the signal source being the second interface connected to the first chip, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip can A parameter to be adjusted generates a video signal sent by the first chip to the second chip, and the second chip adjusts the video signal received from the first chip according to the second adjustment parameter;

The second chip sends the adjusted video signal to the display screen.

A second aspect of an embodiment of the present application shows an image quality processing method, which is applied to a display device. The display device includes a display screen, a second chip connected to the display screen, and a first chip connected to the second chip. The method includes: :

The second chip receives the first parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust the video layer image signal;

In response to the video signal being sent by the first chip, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip adjusts and sends the parameter to the first chip according to the parameter to be adjusted. The video layer image signal in the video signal of the two chips;

In response to the video signal being directly received by the second chip, the second chip adjusts the video layer image signal in the received video signal according to the parameter to be adjusted.

A third aspect of the embodiments of the present application shows a display device, comprising: a first chip connected to the first chip, a second chip, and a display screen connected to the second chip:

the second chip, configured to receive parameters to be adjusted, the parameters to be adjusted include a first parameter to be adjusted and a second parameter to be adjusted;

The second chip is also used to determine the channel to which the signal source is connected;

In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, the second chip is further configured to adjust the video signal received from the first interface according to the adjustment parameter;

In response to the channel connected to the signal source being the second interface connected to the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first A chip generates a video signal sent by the first chip to the second chip according to the first parameter to be adjusted, and the second chip adjusts the video signal received from the first chip according to the second adjustment parameter;

The second chip is also used for sending the adjusted video signal to the display screen.

A fourth aspect of the embodiments of the present application shows a display device, comprising: a first chip connected to the first chip, a second chip, and a display screen connected to the second chip:

the second chip is configured to receive a first parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust the video layer image signal;

In response to the video signal being sent by the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first chip can be adjusted according to the parameter to be adjusted adjusting the video layer image signal in the video signal sent to the second chip;

In response to the video signal being directly received by the second chip, the second chip is further configured to adjust the video layer image signal in the received video signal according to the parameter to be adjusted.

It can be seen from the above technical solutions that the embodiments of the present application show an image quality processing method and a display device. The technical solutions shown in the embodiments of the present application, on the premise of distinguishing signal input ends, allocate parameters to be adjusted according to the difference of signal input ends. For the wired video input from the first interface, the parameters to be adjusted of the wired video signal are directly adjusted on the second chip, so as to achieve the image quality processing effect of the wired video signal. For the first video signal input through the second interface, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip generates the first chip according to the first parameter to be adjusted and sends it to the second chip The second chip adjusts the video signal received from the first chip according to the second adjustment parameter, and finally sends the adjusted video signal to the display screen. The above-mentioned method effectively avoids the occurrence of the problems of outline and color distortion of the graphics layer signal in the process of image quality processing.

At the same time, the technical solution shown in the embodiment of the present application keeps the adjustment value of the second parameter to be adjusted on the second chip. On the one hand, changing the second parameter to be adjusted of the graphics layer signal will not affect the display of the graphics layer signal , therefore, adjusting the second parameter to be adjusted of the mixed graphics layer signal and the video layer signal on the second chip will not affect the display of the graphics layer signal. On the other hand, the second chip is directly connected to the display screen, and the relevant parameters of the display screen can be transmitted to the second chip in real time. When the relevant parameters of the display screen change, the second chip will also receive the changed data in time. The relevant parameters of the display screen are adjusted accordingly to the adjustment value of the second parameter in time according to the changed relevant parameters of the display screen.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present application. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 exemplarily shows a schematic diagram of an operation scene between a display device and a control device according to an embodiment;

FIG. 2 exemplarily shows a block diagram of the hardware configuration of the control device 100 according to the embodiment;

FIG. 3 exemplarily shows a block diagram of the hardware configuration of the display device 200 according to the embodiment;

FIG. 4 exemplarily shows the hardware architecture block diagram of the display device 200 according to FIG. 3;

FIG. 5 exemplarily shows a schematic diagram of the functional configuration of the display device 200 according to the embodiment;

FIG. 6a exemplarily shows a schematic diagram of the software configuration in the display device 200 according to the embodiment;

FIG. 6b exemplarily shows a schematic diagram of the configuration of the application program in the display device 200 according to the embodiment;

FIG. 7 exemplarily shows a schematic diagram of the user interface in the display device 200 according to the embodiment;

FIG. 8 exemplarily shows a flowchart of an image quality processing method;

FIG. 9 exemplarily shows a flow chart of a method for image quality processing;

FIG. 10 exemplarily shows a structural block diagram of a display device.

Detailed ways

In order to make the objectives, 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 accompanying drawings in the exemplary embodiments of the present application. Obviously, , the described exemplary embodiments are only a part of the embodiments of the present application, but not all of the embodiments.

For the convenience of users, various external device interfaces are usually provided on the display device, so as to connect different peripheral devices or cables to realize corresponding functions. When a high-definition camera is connected to the interface of the display device, if the hardware system of the display device does not have the hardware interface of the high-pixel camera that receives the source code, the data received by the camera cannot be presented to the display of the display device. on the screen.

Moreover, due to the hardware structure, the hardware system of traditional display devices only supports one channel of hard decoding resources, and usually only supports up to 4K resolution video decoding. The resolution of the network video picture requires the use of hard decoding resources (usually the GPU in the hardware system) to decode the network video. The video chat screen is processed by soft decoding.

Using soft decoding to process the video chat screen will greatly increase the data processing burden of the CPU. When the data processing burden of the CPU is too heavy, the picture may be stuck or not smooth. Further, subject to the data processing capability of the CPU, when using the CPU soft decoding to process the video chat screen, it is usually impossible to implement multi-channel video calls. When the user wants to conduct video chat with multiple other users in the same chat scene Access is blocked.

Based on the above considerations, in order to overcome the above shortcomings, the present application discloses a dual hardware system architecture to realize multiple channels of video chatting data (at least one channel of local video).

The concepts involved in the present application are first described below with reference to the accompanying drawings. It should be pointed out here that the following descriptions of various concepts are only for the purpose of making the content of the present application easier to understand, and do not limit the protection scope of the present application.

The term "module" used in the 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 or/and software codes capable of executing the execution associated with the element function.

The term "remote control" used in various embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application), which can usually wirelessly control the electronic device within a short distance range. The component can generally use infrared and/or radio frequency (RF) signals and/or Bluetooth to connect with electronic devices, and may also include functional modules such as WiFi, wireless USB, Bluetooth, and motion sensors. For example, a hand-held touch remote control replaces most of the physical built-in hard keys in a general remote control device with a user interface in a touch screen.

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

The term "hardware system" used in the various embodiments of the present application may refer to a system with computing, A solid component that controls, stores, imports, and exports functionality. In various embodiments of the present application, the hardware system is also generally referred to as a motherboard or a chip.

FIG. 1 exemplarily shows a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in FIG. 1 , a user can operate the display apparatus 200 through the control apparatus 100 .

Wherein, the control device 100 may be a remote controller 100A, which can communicate with the display device 200 through infrared protocol communication, Bluetooth protocol communication, ZigBee protocol communication or other short-distance communication methods, for wireless or other communication The display device 200 is controlled in a wired manner. The user can control the display device 200 by inputting user instructions through keys on the remote control, voice input, control panel input, and the like. For example, the user can control the display device 200 by inputting corresponding control commands through the volume up/down key, channel control key, up/down/left/right movement keys, voice input key, menu key, power-on/off key, etc. on the remote control. function.

The control device 100 can also be a smart device, such as a mobile terminal 100B, a tablet computer, a computer, a notebook computer, etc., which can connect to a local area network (LAN, Local Area Network), a wide area network (WAN, Wide Area Network), a wireless local area network ((WLAN) , Wireless Local Area Network) or other networks and the display device 200, and control the display device 200 through an application program corresponding to the display device 200. For example, use an application program running on a smart device to control the display device 200 .The application can provide users with various controls through an intuitive user interface (UI, User Interface) on the screen associated with the smart device.

For example, software applications can be installed on both the mobile terminal 100B and the display device 200, so that the connection and communication between the two can be realized through a network communication protocol, thereby realizing the purpose of one-to-one control operation and data communication. For example, the mobile terminal 100B and the display device 200 can be made to establish a control instruction protocol, the remote control keyboard can be synchronized to the mobile terminal 100B, and the function of controlling the display device 200 can be realized by controlling the user interface on the mobile terminal 100B; The audio and video content displayed on the display device 200 is transmitted to the display device 200 to realize the synchronous display function.

As shown in FIG. 1 , the display device 200 can also perform data communication with the server 300 through various communication methods. In various embodiments of the present application, the display device 200 may be allowed to communicate with the server 300 through a local area network, a wireless local area network or other networks. The server 300 may provide various contents and interactions to the display device 200 .

For example, the display device 200 interacts with an Electronic Program Guide (EPG) by sending and receiving information, receiving software program updates, or accessing a remotely stored digital media library. The server 300 may be one group or multiple groups, and may be one or more types of servers. Other network service contents such as video-on-demand and advertising services are provided through the server 300 .

The display device 200, on the one hand, can be a liquid crystal display, an OLED (Organic Light Emitting Diode) display, and a projection display device; on the other hand, the display device can be a smart TV or a display system composed of a monitor and a set-top box. The specific display device type, size and resolution are not limited. Those skilled in the art can understand that the display device 200 can make some changes in performance and configuration as required.

The display device 200 may additionally provide an intelligent network television function that provides a computer-supported function in addition to the function of broadcasting and receiving television. Examples include Internet TV, Smart TV, Internet Protocol TV (IPTV), and the like. In some embodiments, the display device may not have broadcast reception television capabilities.

As shown in FIG. 1 , a camera may be connected or set on the display device for presenting the picture captured by the camera on the display interface of the display device or other display devices, so as to realize interactive chat between users. Specifically, the picture captured by the camera may be displayed on the display device in full screen, half screen, or in any optional area.

As an optional connection method, the camera is connected to the rear shell of the display through a connecting plate, and is fixedly installed in the upper middle of the rear shell of the display. It is sufficient that the image acquisition area is not blocked by the back cover. For example, the image acquisition area and the display device have the same display orientation.

As another optional connection method, the camera can be connected to the display back shell through a connecting plate or other conceivable connectors in a liftable manner. A lifting motor is installed on the connector. When the user wants to use the camera or has an application program to use the camera When the camera is not needed, it can be embedded behind the rear case to protect the camera from damage.

As an embodiment, the camera used in this application may be 16 million pixels, so as to achieve the purpose of ultra-high-definition display. In actual use, cameras with higher or lower pixels than 16 megapixels can also be used.

When a camera is installed on the display device, the content displayed in different application scenarios of the display device can be integrated in many different ways, so as to achieve functions that cannot be achieved by traditional display devices.

Exemplarily, a user may video chat with at least one other user while watching a video program. The presentation of the video program can be used as a background image, and the video chat window is displayed on the background image. Visually, this function can be called "watch while chatting".

Optionally, in the scenario of "watching while chatting", at least one video chat is performed across terminals while watching a live video or an online video.

In another example, the user may video chat with at least one other user while entering the educational application for learning. For example, students can interact with teachers remotely while learning content in educational applications. Visually, this function can be called "learning while chatting".

In another example, a user video chats with a player entering the game while playing a card game. For example, when a player enters a game application to participate in the game, he can realize remote interaction with other players. Visually, this function can be called "play while watching".

Optionally, the game scene is integrated with the video screen, and the portraits in the video screen are cut out and displayed on the game screen to improve user experience.

Optionally, in somatosensory games (such as playing, boxing, running, dancing, etc.), the camera is used to obtain human postures and movements, limb detection and tracking, and detection of human skeleton key point data, and then combine them with in-game data. Animation is integrated to realize games such as sports, dance and other scenes.

In another example, the user can perform video and voice interaction with at least one other user in the K song application. Visually, this function can be called "sing while watching". Preferably, when at least one user enters the application in a chatting scenario, multiple users can jointly complete the recording of a song.

In another example, the user can turn on the camera locally to obtain pictures and videos, which can be called "looking in the mirror".

In other examples, more functions may be added or the above functions may be reduced. The present application does not specifically limit the function of the display device.

FIG. 2 exemplarily shows a block diagram of the configuration of the control apparatus 100 according to the exemplary embodiment. As shown in FIG. 2 , the control device 100 includes a controller 110 , a communicator 130 , a user input/output interface 140 , a memory 190 , and a power supply 180 .

The control apparatus 100 is configured to be able to control the display device 200, and to receive the user's input operation instructions, and convert the operation instructions into instructions that the display device 200 can recognize and respond to, so as to serve as an interactive intermediary between the user and the display device 200. effect. For example, the user operates the channel addition and subtraction keys on the control device 100, and the display device 200 responds to the channel addition and subtraction operation.

In some embodiments, the control apparatus 100 may be a smart device. For example, the control apparatus 100 may install various applications for controlling the display device 200 according to user requirements.

In some embodiments, as shown in FIG. 1 , the mobile terminal 100B or other intelligent electronic device may perform a similar function of the control apparatus 100 after installing the application for operating the display device 200 . For example, the user can install the application, various function keys or virtual buttons of the graphical user interface that can be provided on the mobile terminal 100B or other intelligent electronic devices, so as to realize the function of the physical key of the control apparatus 100 .

The controller 110 includes a processor 112, RAM 113 and ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation and operation of the control device 100, as well as the communication and cooperation among the internal components and the external and internal data processing functions.

The communicator 130 implements communication of control signals and data signals with the display device 200 under the control of the controller 110 . For example, the received user input signal is sent to the display device 200 . The communicator 130 may include at least one of communication modules such as a WIFI module 131 , a Bluetooth module 132 , and an NFC module 133 .

The user input/output interface 140, wherein the input interface includes at least one of input interfaces such as a microphone 141, a touch panel 142, a sensor 143, and a key 144. For example, the user can implement the user command input function through actions such as voice, touch, gesture, pressing, etc. The input interface converts the received analog signal into a digital signal, and converts the digital signal into a corresponding command signal, and sends it to the display device 200.

The output interface includes an interface for transmitting received user instructions to the display device 200 . In some embodiments, it may be an infrared interface or a radio frequency interface. For example, when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to the infrared control protocol, and sent to the display device 200 through the infrared sending module. For another example, when a radio frequency signal interface is used, the user input command needs to be converted into a digital signal, and then modulated according to the radio frequency control signal modulation protocol, and then sent to the display device 200 by the radio frequency transmission terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and an output interface. The control device 100 is configured with a communicator 130, such as: WIFI, Bluetooth, NFC and other modules, which can send user input instructions to the display device 200 through WIFI protocol, or Bluetooth protocol, or NFC protocol encoding.

The memory 190 is used to store various operating programs, data and applications for driving and controlling the control device 100 under the control of the controller 110 . The memory 190 can store various control signal instructions input by the user.

The power supply 180 is used to provide operating power support for each element of the control device 100 under the control of the controller 110 . Can battery and related control circuit.

FIG. 3 exemplarily shows a hardware configuration block diagram of a hardware system in the display device 200 according to an exemplary embodiment.

When the dual hardware system architecture is adopted, the institutional relationship of the hardware system can be shown in FIG. 3 . For ease of expression, one hardware system in the dual hardware system architecture is referred to as the first hardware system or A system, A chip, and the other hardware system is referred to as the second hardware system or N system, N chip. The A chip includes the controller of the A chip and various modules connected to the controller of the A chip through various interfaces. The N chip includes the controller of the N chip and various modules connected to the controller of the N chip through various interfaces. . A relatively independent operating system can be installed in the A chip and the N chip. The operating system of the A chip and the operating system of the N chip can communicate with each other through a communication protocol. Exemplary: the framework layer of the operating system of the A chip and the The framework layer of the operating system can communicate to transmit commands and data, so that there are two independent but interrelated subsystems in the display device 200 .

As shown in FIG. 3 , the connection, communication and power supply can be implemented between the A chip and the N chip through a plurality of different types of interfaces. The interface type of the interface between the A chip and the N chip may include a general-purpose input/output interface (General-purpose input/output, GPIO), a USB interface, an HDMI interface, a UART interface, and the like. One or more of these interfaces may be used for communication or power transfer between the A chip and the N chip. For example, as shown in FIG. 3, under the dual hardware system architecture, the N chip can be powered by an external power supply, while the A chip can be powered by the N chip instead of the external power supply.

In addition to the interface for connecting with the N chip, the A chip may also include an interface for connecting other devices or components, such as the MIPI interface shown in FIG. 3 for connecting a camera (Camera), a Bluetooth interface, and the like.

Similarly, in addition to the interface for connecting with the N chip, the N chip may also include a VBY interface for connecting to the display screen TCON (Timer Control Register), for connecting a power amplifier (Amplifier, AMP) and a speaker (Speaker). ) i2S interface; and IR/Key interface, USB interface, Wifi interface, Bluetooth interface, HDMI interface, Tuner interface, etc.

The dual hardware system architecture of the present application will be further described below with reference to FIG. 4 . It should be noted that FIG. 4 is only an exemplary illustration of the dual-hardware system architecture of the present application, and does not represent a limitation on the present application. In practical applications, both hardware systems may contain more or less hardware or interfaces as required.

FIG. 4 exemplarily shows a hardware architecture block diagram of the display device 200 according to FIG. 3 . As shown in FIG. 4 , the hardware system of the display device 200 may include an A chip and an N chip, and modules connected to the A chip or the N chip through various interfaces.

The N chip may include a tuner-demodulator 220, a communicator 230, an external device interface 250, a controller 210, a memory 290, a user input interface, a video processor 260-1, an audio processor 260-2, a display 280, an audio output interface 270. Power supply. In other embodiments, the N chip may also include more or fewer modules.

Among them, the tuner and demodulator 220 is used to perform modulation and demodulation processing such as amplification, frequency mixing and resonance on the broadcast and television signals received by wire or wireless, so as to demodulate the user's data from a plurality of wireless or wire broadcast and TV signals. Audio and video signals carried in the frequencies of the selected TV channels, as well as additional information (eg EPG data signals). According to different TV signal broadcasting standards, the signal paths of the tuner and demodulator 220 can be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting or Internet broadcasting, etc.; and according to different modulation types, the adjustment method of the signal can be digitally modulated The tuner demodulator 220 can demodulate the analog signal and/or the digital signal according to the type of the received TV signal.

The tuner and demodulator 220 is also used for, according to user selection, and controlled by the controller 210, to respond to the television channel frequency selected by the user and the television signal carried by the frequency.

In some other exemplary embodiments, the tuner 220 may also be in an external device, such as an external set-top box or the like. In this way, the set-top box outputs the television audio and video signals after modulation and demodulation, and inputs them into the display device 200 through the external device interface 250 .

The communicator 230 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the communicator 230 may include a WIFI module 231, a Bluetooth communication protocol module 232, a wired Ethernet communication protocol module 233, and an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The display device 200 may establish a connection of control signals and data signals with an external control device or a content providing device through the communicator 230 . For example, the communicator may receive a control signal of the remote controller 100 according to the control of the controller.

The external device interface 250 is a component that provides data transmission between the N-chip controller 210 and the A-chip and other external devices. The external device interface can be connected with external devices such as set-top boxes, game devices, notebook computers, etc. in a wired/wireless manner, and can receive external devices such as video signals (such as moving images), audio signals (such as music), additional information (such as EPG) ) and other data.

The external device interface 250 may include: a high-definition multimedia interface (HDMI) terminal is also called HDMI251, a composite video blanking sync (CVBS) terminal is also called AV252, an analog or digital component terminal is also called component 253, a common Any one or more of serial bus (USB) terminals 254, red, green and blue (RGB) terminals (not shown in the figure). This application does not limit the number and type of external device interfaces.

The controller 210 controls the operation of the display device 200 and responds to user operations by running various software control programs (eg, an operating system and/or various application programs) stored in the memory 290 .

As shown in FIG. 4, the controller 210 includes a read only memory RAM 213, a random access memory ROM 214, a graphics processor 216, a CPU processor 212, a communication interface 218, and a communication bus. Among them, the RAM 213 and the ROM 214, the graphics processor 216, the CPU processor 212, and the communication interface 218 are connected through a bus.

The ROM 213 is used to store various system startup instructions. For example, when the power-on signal is received, the display device 200 is powered on, and the CPU processor 212 executes the system startup instruction in the ROM to copy the operating system stored in the memory 290 to the RAM 214 to start the operating system. After the startup of the operating system is completed, the CPU processor 212 copies various application programs in the memory 290 to the RAM 214, and then starts to run and start various application programs.

The graphics processor 216 is used to generate various graphic objects, such as: icons, operation menus, and user input instructions to display graphics and so on. It includes an operator, which performs operations by receiving various interactive instructions input by the user, and displays various objects according to the display properties. and includes a renderer, generating various objects obtained based on the arithmetic unit, and displaying the result of rendering on the display 280 .

CPU processor 212 for executing operating system and application program instructions stored in memory 290 . And various application programs, data and content are executed according to various interactive instructions received from the external input, so as to finally display and play various audio and video content.

In some exemplary embodiments, CPU processor 212 may include multiple processors. The plurality of processors may include a main processor and multiple or one sub-processors. The main processor is used to perform some operations of the display device 200 in the pre-power-on mode, and/or an operation of displaying a picture in the normal mode. Multiple or one sub-processors for performing an operation in a state such as standby mode.

The communication interface may include a first interface 218-1 to an nth interface 218-n. These interfaces may be network interfaces connected to external devices via a network.

The controller 210 may control the overall operation of the display apparatus 200 . For example, in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

Wherein, the object can be any one of the optional objects, such as a hyperlink or an icon. Actions related to the selected object, such as displaying actions linked to hyperlinked pages, documents, images, etc., or executing actions that correspond to an icon. The user command for selecting the UI object may be an input command through various input devices (eg, a mouse, a keyboard, a touchpad, etc.) connected to the display device 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes storing various software modules for driving and controlling the display device 200 . For example, various software modules stored in the memory 290 include: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules.

The basic module is a low-level software module used for signal communication between various hardwares in the display device 200 and sending processing and control signals to the upper-layer modules. The detection module is a management module used to collect various information from various sensors or user input interfaces, perform digital-to-analog conversion, and analyze and manage.

For example, the speech recognition module includes a speech analysis module and a speech instruction database module. The display control module is a module for controlling the display 280 to display image content, and can be used to play information such as multimedia image content and UI interface. The communication module is a module used for control and data communication with external devices. The browser module is a module for performing data communication between browser servers. Service modules are modules used to provide various services and various applications.

At the same time, the memory 290 is also used for storing received external data and user data, images of various items in various user interfaces, and visual effect diagrams of focal objects.

The user input interface is used to send the user's input signal to the controller 210, or transmit the signal output from the controller to the user. Exemplarily, the control device (such as a mobile terminal or a remote control) can send input signals input by the user, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., to the user input interface, and then the user input interface forwards it to the controller; Alternatively, the control device may receive an output signal such as audio, video or data output from the user input interface through the controller processing, and display the received output signal or output the received output signal in the form of audio or vibration.

In some embodiments, the user may input user commands on a graphical user interface (GUI) displayed on the display 280, and the user input interface receives the user input commands through the graphical user interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface recognizes the sound or gesture through a sensor to receive the user input command.

The video processor 260-1 is used to receive video signals, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to the standard codec protocol of the input signal, and can obtain A video signal that is displayed or played directly on the display 280 .

Exemplarily, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like.

Wherein, the demultiplexing module is used for demultiplexing the input audio and video data stream. For example, if MPEG-2 is input, the demultiplexing module demultiplexes it into video signals and audio signals.

The video decoding module is used to process the demultiplexed video signal, including decoding and scaling.

The image synthesizing module, such as an image synthesizer, is used for superimposing and mixing the GUI signal generated by the graphics generator according to the user's input or itself, and the zoomed video image, so as to generate an image signal that can be displayed.

The frame rate conversion module is used to convert the frame rate of the input video, such as converting the frame rate of the input 24Hz, 25Hz, 30Hz, 60Hz video to the frame rate of 60Hz, 120Hz or 240Hz. The video stream is related, and the output frame rate can be related to the update rate of the display. The input has the usual format, such as frame insertion.

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

The display 280 is configured to receive the image signal input from the video processor 260-1, and to display the video content and images and the menu manipulation interface. The display 280 includes a display component for presenting a picture and a driving component for driving image display. The displayed video content can come from the video in the broadcast signal received by the tuner and demodulator 220, or from the video content input from the communicator or the interface of the external device. The display 280 simultaneously displays a user manipulation interface UI generated in the display device 200 and used to control the display device 200 .

And, depending on the type of the display 280, a driving component for driving the display is also included. Alternatively, if the display 280 is a projection display, it may also include a projection device and a projection screen.

The audio processor 260-2 is used to receive the audio signal, perform decompression and decoding according to the standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing, and obtain a signal that can be displayed in the speaker 272. Played audio signal.

The audio output interface 270 is used to receive the audio signal output by the audio processor 260-2 under the control of the controller 210. The audio output interface may include a speaker 272, or an external audio output terminal 274 of a generating device output to an external device, such as : External audio terminal or headphone output terminal, etc.

In some other exemplary embodiments, the video processor 260-1 may comprise one or more chips. The audio processor 260-2 may also include one or more chips.

And, in some other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips, or may be integrated with the controller 210 in one or more chips.

The power supply is used to provide power supply support for the display device 200 with the power input from the external power supply under the control of the controller 210 . The power supply may include a built-in power supply circuit installed inside the display device 200 , or may be a power supply installed outside the display device 200 , such as a power interface that provides an external power supply in the display device 200 .

Similar to the N chip, as shown in FIG. 4 , the A chip may include a controller 310 , a communicator 330 , a detector 340 , and a memory 390 . A user input interface, video processor, audio processor, display, audio output interface may also be included in some embodiments. In some embodiments, there may also be a power supply that independently supplies power to the A chip.

The communicator 330 is a component for communicating with external devices or external servers according to various communication protocol types. For example, the communicator 330 may include a WIFI module 331, a Bluetooth communication protocol module 332, a wired Ethernet communication protocol module 333, and an infrared communication protocol module and other network communication protocol modules or near field communication protocol modules.

The communicator 330 of the A chip and the communicator 230 of the N chip also interact with each other. For example, the WiFi module 231 in the N-chip hardware system is used to connect to an external network and generate network communication with an external server and the like. The WiFi module 331 in the A-chip hardware system is used to connect to the WiFi module 231 of the N-chip, without directly connecting with the external network, etc. The A-chip is connected to the external network through the N-chip. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the display device A chip used to collect signals from the external environment or interact with the outside. The detector 340 may include a light receiver 342, a sensor used to collect ambient light intensity, and can adapt to changes in display parameters by collecting ambient light; it may also include an image collector 341, such as a camera, a camera, etc., which can be used to collect external The environment scene, as well as the gestures used to collect user attributes or interact with the user, can adaptively change display parameters, and can also recognize user gestures to realize the function of interacting with the user.

The external device interface 350 provides components for data transmission between the controller 310 and the N chip or other external devices. The external device interface can be connected with external devices such as set-top boxes, game devices, notebook computers, etc. in a wired/wireless manner.

The video processor 360 is used for processing related video signals.

The controller 310 controls the operation of the display device 200 and responds to user operations by running various software control programs stored in the memory 390 (eg, using installed third-party applications, etc.) and interacting with the N chip.

As shown in FIG. 4, the controller 310 includes a read-only memory ROM 313, a random access memory RAM 314, a graphics processor 316, a CPU processor 312, a communication interface 318, and a communication bus. Among them, the ROM 313 and the RAM 314, the graphics processor 316, the CPU processor 312, and the communication interface 318 are connected through a bus.

ROM313 is used to store various system startup instructions. The CPU processor 312 executes the system startup instruction in the ROM, and copies the operating system stored in the memory 390 to the RAM 314 to start running the booting operating system. After the startup of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM 314, and then starts to run and start various application programs.

The CPU processor 312 is used to execute the operating system and application program instructions stored in the memory 390, communicate with the N chip, transmit and interact with the N chip, such as signals, data, and instructions, and execute various interactive instructions received from external input. Various applications, data and content for the ultimate display and playback of various audio and video content.

There are multiple communication interfaces 318 . These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the N chip via a network.

The controller 310 may control the overall operation of the display apparatus 200 . For example, in response to receiving a user command for selecting a UI object to be displayed on the display 280, the controller 210 may perform an operation related to the object selected by the user command.

The graphics processor 316 is used to generate various graphic objects, such as: icons, operation menus, and user input instructions to display graphics and so on. It includes an operator, which performs operations by receiving various interactive instructions input by the user, and displays various objects according to the display properties. and includes a renderer, generating various objects obtained based on the arithmetic unit, and displaying the result of rendering on the display 280 .

Both the A-chip graphics processor 316 and the N-chip graphics processor 216 can generate various graphics objects. Differently, if application 1 is installed on the A chip and application 2 is installed on the N chip, when the user is on the interface of application 1 and executes an instruction input by the user in application 1, the graphics object of the A chip is generated by the graphics processor 316 of the A chip. When the user is on the interface of the application 2 and performs an instruction input by the user in the application 2, the graphics object is generated by the graphics processor 216 of the N chip.

FIG. 5 exemplarily shows a functional configuration diagram of a display device according to an exemplary embodiment.

As shown in FIG. 5 , the memory 390 of the A chip and the memory 290 of the N chip are respectively used to store the operating system, application program, content and user data, etc., under the control of the controller 310 of the A chip and the controller 210 of the N chip Various operations that drive the system operation of the display apparatus 200 and respond to the user are performed. The A-chip memory 390 and the N-chip memory 290 may include volatile and/or nonvolatile memory.

For the N chip, the memory 290 is specifically used to store the running program for driving the controller 210 in the display device 200, and to store various application programs built in the display device 200, various application programs downloaded by the user from external devices, and related application programs. Related to various graphical user interfaces, as well as various objects related to graphical user interfaces, user data information, and various internal data supporting applications. The memory 290 is used to store system software such as an operating system (OS) kernel, middleware, and applications, as well as input video data and audio data, and other user data.

The memory 290 is specifically used to store drivers and related data such as the video processor 260-1, the audio processor 260-2, the display 280, the communicator 230, the tuner 220, and the input/output interface.

In some embodiments, memory 290 may store software and/or programs representing an operating system (OS) including, for example, a kernel, middleware, application programming interfaces (APIs) and/or applications. Illustratively, the kernel may control or manage system resources, or functions implemented by other programs (such as the middleware, APIs, or applications), and the kernel may provide interfaces to allow middleware and APIs, or applications, to access the controller , to control or manage system resources.

Exemplarily, the memory 290 includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, a first audio control module 2906, an external command identification module 2907, a communication control module 2908, A light receiving module 2909, a power control module 2910, an operating system 2911, and other application programs 2912, a browser module, and the like. The controller 210 executes various software programs in the memory 290, such as: broadcast TV signal reception and demodulation function, TV channel selection control function, volume selection control function, image control function, display control function, audio control function, external command Various functions such as identification function, communication control function, optical signal receiving function, power control function, software control platform supporting various functions, and browser function.

The memory 390 includes storing various software modules for driving and controlling the display device 200 . For example, various software modules stored in the memory 390 include: a basic module, a detection module, a communication module, a display control module, a browser module, and various service modules. Since the functions of the memory 390 and the memory 290 are relatively similar, reference may be made to the memory 290 for related parts, which will not be repeated here.

Exemplarily, the memory 390 includes an image control module 3904, a second audio control module 3906, an external command recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, other application programs 3912, a browser module, etc. . The controller 210 executes various software programs in the memory 290, such as: image control function, display control function, audio control function, external command recognition function, communication control function, optical signal receiving function, power control function, supporting various Function software control platform, browser function and other functions.

Differently, the external instruction identification module 2907 of the N chip and the external instruction identification module 3907 of the A chip can identify different instructions.

Exemplarily, since an image receiving device such as a camera is connected to the A chip, the external command recognition module 3907 of the A chip may include a graphic recognition module 2907-1, and the graphic recognition module 3907-1 stores a graphic database. When the graphics command is generated, it corresponds to the command in the graphics database, so as to make command control to the display device. Since the voice receiving device and the remote controller are connected to the N chip, the external command recognition module 2907 of the N chip may include a voice recognition module 2907-2. The voice recognition module 2907-2 stores a voice database, and the voice receiving device receives the The external voice command or time corresponds to the command in the voice database, so as to perform command control on the display device. Similarly, the control device 100 such as a remote control is connected to the N chip, and the key command identification module 2907-3 performs command interaction with the control device 100.

FIG. 6a exemplarily shows a configuration block diagram of a software system in the display device 200 according to an exemplary embodiment.

For an N chip, as shown in Figure 6a, an operating system 2911, including execution software for handling various basic system services and performing hardware-related tasks, acts as an intermediary for data processing between applications and hardware components.

In some embodiments, a portion of the operating system kernel may contain a set of software to manage hardware resources of the display device and provide services for other programs or software codes.

In some other embodiments, a portion of the operating system kernel may contain one or more device drivers, and the device drivers may be a set of software codes in the operating system to help operate or control devices or hardware associated with the display device. Drivers may contain code to operate video, audio and/or other multimedia components. Examples include displays, cameras, Flash, WiFi, and audio drivers.

Among them, the accessibility module 2911-1 is used to modify or access the application program, so as to realize the accessibility of the application program and the operability of the displayed content thereof.

The communication module 2911-2 is used to connect with other peripherals via related communication interfaces and communication networks.

The user interface module 2911-3 is used to provide objects for displaying a user interface for each application program to access, which can realize user operability.

The control application 2911-4 is used to control process management, including runtime applications and the like.

The event transmission system 2914 can be implemented in the operating system 2911 or in the application program 2912 . In some embodiments, on the one hand, it is implemented in the operating system 2911, and at the same time, it is implemented in the application program 2912 to monitor various user input events, and will refer to the recognition results in response to various events or sub-events according to various events, Instead, a handler that implements one or more sets of predefined actions.

Among them, the event monitoring module 2914-1 is used to monitor user input interface input events or sub-events.

The event identification module 2914-2 is used to input the definitions of various events to various user input interfaces, identify various events or sub-events, and transmit them to the processing program for executing its corresponding one or more groups .

The event or sub-event refers to the input detected by one or more sensors in the display device 200 and the input of the external control device (eg, the control device 100 , etc.). Such as: various sub-events of voice input, gesture input sub-events of gesture recognition, and sub-events of remote key command input of the control device, etc. Exemplarily, one or more sub-events in the remote control include various forms, including but not limited to one or a combination of key press up/down/left/right/, confirm key, key press and so on. And non-physical button operations, such as move, hold, release and other operations.

The interface layout management module 2913 directly or indirectly receives and monitors each user input event or sub-event from the event transmission system 2914, and is used to update the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the container The size or position, level, etc. of the interface perform various operations related to the interface layout.

Since the functions of the operating system 3911 of the A chip and the operating system 2911 of the N chip are relatively similar, please refer to the operating system 2911 for related parts, which will not be repeated here.

As shown in FIG. 6b , the application layer of the display device contains various applications executable on the display device 200 .

The application layer 2912 of the N-chip may include, but is not limited to, one or more applications, such as video-on-demand applications, application centers, game applications, and the like. The application layer 3912 of the A-chip may include, but is not limited to, one or more applications, such as a live TV application, a media center application, and the like. It should be noted that the application programs contained on the A chip and the N chip respectively are determined according to the operating system and other designs, and the present invention does not need to specifically limit and divide the application programs contained on the A chip and the N chip.

Live TV app that can provide live TV from different sources. For example, a live TV application may provide a TV signal using input from cable, over-the-air, satellite services, or other types of live TV services. And, the live TV application may display the video of the live TV signal on the display device 200 .

Video-on-demand application that can provide video from different storage sources. Unlike live TV applications, video-on-demand provides a display of video from certain storage sources. For example, video-on-demand can come from the server side of cloud storage, from local hard disk storage containing existing video programs.

A media center application that can provide a variety of multimedia content playback applications. For example, a media center may provide services other than live TV or video-on-demand, where users can access various images or audio through a media center application.

The application center can provide storage of various applications. An application can be a game, an application, or some other application that is associated with a computer system or other device but can run on a display device. The application center can obtain these applications from various sources, store them in local storage, and then run them on the display device 200 .

FIG. 7 exemplarily shows a schematic diagram of a user interface in the display device 200 according to an exemplary embodiment. As shown in FIG. 7 , the user interface includes a plurality of view display areas, for example, a first view display area 201 and a play screen 202, wherein the play screen includes layout of one or more different items. And the user interface also includes a selector indicating that an item is selected, and the position of the selector can be moved by user input to change the selection of a different item.

It should be noted that, multiple view display areas can present display images of different levels. For example, the first view display area may present the content of the video chatting item, and the second view display area may present the content of the application layer item (eg, webpage video, VOD display, application screen, etc.).

Optionally, the presentation of different view display areas has different priorities, and between view display areas with different priorities, the display priorities of the view display areas are different. For example, the priority of the system layer is higher than that of the application layer. When the user uses the acquisition selector and screen switching in the application layer, the screen display in the view display area of the system layer is not blocked; When the size and position of the view display area of the system layer are changed, the size and position of the view display area of the system layer are not affected.

Displays of the same level can also be presented. At this time, the selector can switch between the first view display area and the second view display area, and when the size and position of the first view display area changes, the second view The size and position of the display area can be changed accordingly.

Since independent operation display devices may be installed in the first chip and the second chip, respectively, there are two independent but interrelated sub-display devices in the display device 200 . For example, both the first chip and the N can be independently installed with Android (Android) and various APPs, so that each chip can realize a certain function, and the first chip and the second chip can cooperate to realize a certain function.

In the process of practical application, both the second chip and the first chip are used to receive video signals, wherein the video signals include: network video signals and wired video signals. The first chip is used for receiving network video signals. Wherein, the network video signal includes: a video layer signal and a graphics layer signal. Before superimposing the video layer signal and the graphics layer signal, the first chip does not perform image quality processing on the video layer signal, but directly mixes and superimposes the signal into an HDMI video signal. The second chip performs image quality effect processing on the signal input by the HDMI channel. Since the image quality effect processing involves the processing of chroma, clarity, and noise reduction, and different video signals have different image quality processing effects, it will cause graphics The color of the layer signal changes with different image quality processing, and even the outline problem occurs due to the strong noise reduction.

In order to solve the above technical problems, the embodiment of the present application shows an image quality processing method, which is applied to a display device. The display device includes a display screen, a second chip connected to the display screen, and a first chip connected to the second chip. Specifically , please refer to Figure 8, the method includes:

S101, the second chip receives parameters to be adjusted, and the parameters to be adjusted include a first parameter to be adjusted and a second parameter to be adjusted; the parameters to be adjusted in the technical solutions shown in the embodiments of the present application include the first parameter to be adjusted and the second parameter to be adjusted Parameters to be adjusted.

The second chip of the technical solution shown in the embodiment of the present application is used for receiving video signals, wherein one signal source of the video signal is the first video signal transmitted by the first chip through the second interface, and the other signal source is the set-top box through the first video signal. The wired video signal transmitted by the interface. The first video signal includes: a network video signal and a pre-downloaded video signal transmitted through a USB interface. The signal source of the cable video signal is a variety of TV signals received from the air, including satellite TV signals, V-segment, U-segment TV signals, and TV signals transmitted by other cable stations through microwaves (or optical cables). ; Another source of signal is the TV program run by the cable TV display equipment. Its main equipment includes satellite ground stations, microwave stations, V-segment and U-segment receiving antennas, cameras, video recorders, TV broadcast vehicles, broadcast control equipment and display equipment management computers. Cable video only involves video layer signals.

In the technical solutions shown in the embodiments of this application, the first video signal includes: a video layer signal and a graphics layer signal. Among them, the video layer signal is provided by the video website. The video layer signal includes not only video programs such as online movies, TV series, news, variety shows, advertisements, etc., but also video programs such as selfie Dv short films, video chats, and video games. The graphics layer signal is also called OSD (Object Sequence Diagram, on-screen menu adjustment mode) in this embodiment of the present application. The OSD is synchronized with the video to add or change the color of some pixels in the video in real time, so that it can be combined into a human-readable image. Data identified in the video. Display in a fixed or unfixed manner. For example, when playing a video program, you can use characters to superimpose various notifications and other information, which can be called OSD.

In some embodiments, the video signal received by the first chip may include the video layer signal but not the OSD layer signal, the OSD layer signal is generated by the first chip itself, and the first chip may, before the OSD layer signal and the video layer signal are superimposed, The video layer signal is processed by using the first parameter to be adjusted, and the video signal sent to the second chip is generated according to the superposition of the processed video layer signal and the self-generated OSD signal.

In the process of practical application, it is usually necessary to perform image quality processing on the video signal in order to provide users with better visual effects. If the image quality processing is performed directly on the video signal received by the second chip on the second chip, since the image quality processing involves the processing of chroma, sharpness and noise reduction, and different video signals have different image quality processing effects, Therefore, the color of the graphics layer signal in the video signal will change with different image quality processing, and even the outline problem will occur due to the high noise reduction intensity.

Based on the above technical problems, the technical solutions shown in the embodiments of the present application have different sources of the wired video signal and the signal input end of the first video. The embodiments of the present application are based on the premise of distinguishing the signal input ends, and the first chip and the second chip jointly perform Image quality processing to solve the problems existing in the prior art.

The specific processing process is as follows:

The second chip in S102 determines the channel to which the signal source is connected;

In this embodiment of the present application, the second interface between the first chip and the second chip is disabled by default. The default of the second chip in this application is to receive the wired video signal through the first interface. Correspondingly, the second chip of the technical solution shown in the embodiment of the present application opens the adjustment channels corresponding to all the parameters to be adjusted by default. When the second chip determines that the signal source is connected to the second interface, the second chip closes the corresponding first parameter to be adjusted. adjustment channel.

In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, S10311 the second chip adjusts the video signal received from the first interface according to the adjustment parameter;

In a feasible embodiment, the channel to which the second chip is connected in response to the signal source is the first interface through which the second chip is directly connected to the outside of the display device, and the second chip determines that the received video signal is a wired video signal. In this case, the second chip retains the parameter to be adjusted, and adjusts the video signal received from the first interface according to the adjustment parameter.

The specific adjustment process: the second chip adjusts the relevant parameters of the wired video signal according to the parameters to be adjusted, and converts the adjusted wired video signal into a VBY1 signal and sends it to the display screen.

In response to the channel connected to the signal source being the second interface connected to the first chip, S10321 the second chip sends the first parameter to be adjusted to the first chip, so that the first chip The parameters to be adjusted generate a video signal sent by the first chip to the second chip;

S10322, the second chip adjusts the video signal received from the first chip according to the second adjustment parameter;

In a feasible embodiment, the channel connected by the second chip in response to the signal source being the second interface connected to the first chip, the second chip determines that the received video signal is the first video signal, in this case Next, the second chip sends the first parameter to be adjusted to the first chip, and at the same time, the second chip retains the second parameter to be adjusted.

The parameters to be adjusted in the technical solutions shown in the embodiments of the present application are parameters related to image quality processing. The specific parameters to be adjusted include: contrast, brightness, color, hue, sharpness, hue, color temperature, noise reduction, mpeg noise reduction, point noise reduction, white enhancement, color enhancement, red gain, green gain, blue gain, R- Compensation, G-compensation, B-bias, white balance, and a series of parameters related to image quality processing.

In the technical solutions shown in the embodiments of the present application, the first video signal includes: OSD (Object Sequence Diagram, on-screen menu adjustment mode), which is also referred to as a graphics layer signal in the embodiments of the present application. In the technical solutions shown in the embodiments of the present application, all parameters that have a certain influence on the display of the OSD are referred to as first parameters to be processed. Specifically, in this embodiment of the present application, the first parameters to be processed include: contrast, brightness, color, hue, sharpness, hue, color temperature, noise reduction, mpeg noise reduction, point noise reduction, white enhancement, color enhancement, and red gain , green gain, blue gain, R-compensation, G-compensation, B-deviation and a series of parameters that have certain influence on the display of OSD.

In the technical solutions shown in the embodiments of the present application, the second parameter to be processed includes at least one of a white balance parameter and a gamma parameter.

In the embodiment of the present application, the HDMI channel (also referred to as the second interface in the present application) between the first chip and the second chip is closed by default. In the technical solutions shown in the embodiments of the present application, the second chip opens all the parameter channels to be adjusted by default. When the second chip is switching to the signal source, the second chip will determine whether the current channel is the first interface or the second interface. If it is the first interface, the second chip will continue to open all the corresponding adjustment channels to be adjusted, and keep the adjustment channels to be adjusted. Adjust the adjustment value of the parameter; if it is the second interface, close the adjustment channel corresponding to the first parameter to be adjusted, send the adjustment value of the first parameter to be adjusted to the first chip, and retain the adjustment value of the second parameter to be adjusted.

Wherein, the step of the first chip generating the video signal sent by the first chip to the second chip according to the first parameter to be adjusted is as follows:

The first video signal received by the first chip includes: a video layer signal and a graphics layer signal. The first chip adjusts the relevant parameters of the video layer signal according to the first parameter to be adjusted, and generates an adjusted video layer signal; the first chip mixes the adjusted video layer signal and the graphics layer signal to generate and send to the second chip HDMI video signal.

The first chip changes the first to-be-adjusted parameter of the video layer signal based on the first to-be-adjusted parameter, so that the first to-be-adjusted parameter of the video layer signal tends to the first to-be-adjusted parameter sent by the second chip. For example, if the transmission contrast of the second chip is 20, the first chip adjusts the contrast value of the video layer signal so that the contrast value of the video layer signal tends to be 20. The embodiments of the present application merely illustrate an adjustment process of the first parameter to be adjusted. In an actual application process, one or more first parameters to be adjusted may be adjusted simultaneously. The specific adjustment process is similar to the process shown in the foregoing embodiment, and is not introduced one by one here due to limited space.

After the first chip performs image quality processing on the video layer signal, the first chip mixes the graphics layer signal and the adjusted video layer signal to generate an HDMI video signal sent to the second chip.

The second chip adjusting the video signal received from the first chip according to the second adjustment parameter is specifically:

The second chip adjusts the relevant parameters of the HDMI video signal according to the adjustment value of the second parameter to be adjusted.

The second chip receives the HDMI video signal sent by the first chip, then adjusts the relevant parameters of the HDMI video signal according to the adjustment value of the second parameter to be adjusted, and finally converts the adjusted HDMI video signal into a VBY1 signal and sends it to the display screen .

In a feasible embodiment, the second parameter to be adjusted is a white balance parameter. The second chip receives the display screen parameters fed back by the display screen, and then determines the adjustment value of the white balance parameter according to the display screen parameters. In the technical solutions shown in the embodiments of the present application, the design value of the photoelectric conversion of the three primary colors of R, G, and B of the display screen is also referred to as the adjustment value of the white balance in the technical solutions shown in the embodiments of the present application.

Specifically, according to the parameters of the display screen, the process of determining the adjustment value of the white balance parameter is as follows: usually, the white field of the display screen produces white when the driving voltages of red, green and blue are equal. However, because the actual driving voltage and color coordinates of red, green and blue are different from the theoretical values, it is necessary to adjust the white balance for this purpose.

In a feasible embodiment, the adjustment process of the white balance parameter is: adding a white balance signal of half white and half black to the display screen, and the parameters of the display screen are the color coordinates of the bright field and the dark field relative to the standard white field color coordinates. The second chip repeatedly adjusts the cut-off voltage and excitation voltage of the three colors R, G, and B according to the deviation value fed back by the display screen, so that the white point of the display screen at these two brightnesses is consistent with the standard white point, and R, G and B are obtained. The cut-off voltage and excitation voltage of the three colors G and B, that is, the design value of the photoelectric conversion of the three primary colors of R, G, and B, is the adjustment value of the white balance.

According to the adjustment value of the white balance, the process of adjusting the video signal is as follows: the second chip adjusts the white balance of the HDMI video signal, and can control the second chip according to the design value of the photoelectric conversion of the three primary colors of R, G and B stored in the second chip. The size of the analog output of the relevant control unit inside the chip changes, and the values of the three driving voltages of R, G, and B in the HDMI video signal are changed, so that the photoelectric conversion and superposition effect of the three primary colors of R, G, and B tends to be pre-designed. value to achieve white balance.

In some application scenarios that require high image quality, the Gamma parameter of the video signal needs to be adjusted. In order to meet the needs of different users, in the technical solutions shown in the embodiments of the present application, the second parameter to be processed further includes: a Gamma parameter.

The second chip receives the display screen parameters fed back by the display screen, and determines the Gamma parameters according to the display screen parameters. The Gamma value or the Gamma correction table is the adjustment value of the Gamma parameter in the embodiment of the present application.

In a feasible embodiment, the display screen may provide a certain Gamma value to the second chip. In another feasible embodiment, the second chip calls an interface function (Drv Icm Set Device Gamma Ramp) of the driver to call the Gamma correction table, the size of this table is 3*256 items, each item is 16 bytes, corresponding to RGB three channels, each channel has 256 levels. Gamma parameters are then determined based on the display parameters sent by the display and the Gamma correction table.

The second chip corrects the Gamma value of the HDMI video signal according to the Gamma parameter, and finally the second chip converts the adjusted HDMI video signal into a VBY1 signal (low voltage differential signal) and sends it to the display screen.

S104 The second chip sends the adjusted video signal to the display screen.

The technical solutions shown in the embodiments of the present application, on the premise of distinguishing the signal input ends, allocate the parameters to be adjusted according to the difference of the signal input ends. For the wired video input through the first interface, the wired video signal to be adjusted directly on the second chip The parameters can be adjusted to achieve the image quality processing effect of the wired video signal. For the first video signal input through the second interface, firstly, the first chip adjusts the video layer signal through the adjustment value of the first parameter to be adjusted sent by the second chip, and then compares the adjusted video layer signal with the graphics layer signal Mixing is performed to generate HDIM video signals. Then, adjust the HDIM video signal according to the second adjustment parameter, and finally send the adjusted video signal to the display screen. The above-mentioned method effectively avoids the occurrence of the problems of outline and color distortion of the graphics layer signal in the process of image quality processing.

At the same time, the technical solution shown in the embodiment of the present application keeps the adjustment value of the second parameter to be adjusted on the second chip. On the one hand, changing the second parameter to be adjusted of the graphics layer signal will not affect the display of the graphics layer signal , therefore, adjusting the second parameter to be adjusted of the mixed graphics layer signal and the video layer signal on the second chip will not affect the display of the graphics layer signal. On the other hand, the second chip is directly connected to the display screen, and the relevant parameters of the display screen can be transmitted to the second chip in real time. When the relevant parameters of the display screen change, the second chip will also receive the changed data in time. The relevant parameters of the display screen are adjusted accordingly to the adjustment value of the second parameter in time according to the changed relevant parameters of the display screen.

The second aspect of the embodiments of the present application shows an image quality processing method, which is applied to a display device. The display device includes a display screen, a second chip connected to the display screen, and a first chip connected to the second chip. Referring to Figure 9, the method includes:

S201 The second chip receives a parameter to be adjusted, the parameter to be adjusted includes a first parameter to be adjusted and a second parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust a video layer image signal;

In response to the video signal being directly received by the second chip, S202211 the second chip adjusts the video signal received from the first interface according to the adjustment parameter;

In response to the video signal sent by the first chip, S20221 the second chip sends the first parameter to be adjusted to the first chip, so that the first chip adjusts and sends the parameter to the first chip according to the parameter to be adjusted. the video layer image signal in the video signal of the second chip;

S20222 The second chip adjusts the video signal received from the first chip according to the second adjustment parameter; or the second chip directly transparently transmits the video signal received from the first chip to the display screen.

S203 The second chip sends the adjusted video signal to the display screen.

A third aspect of the embodiments of the present application shows a display device, specifically referring to FIG. 10 , including: a first chip connected to the first chip, a second chip, and a display screen connected to the second chip :

In the process of practical application, the first chip and the second chip pass through USB (Universal Serial Bus, Universal Serial Bus), high-definition multimedia interface (HDMI) terminal, composite video blanking synchronization (CVBS) terminal, analog or digital component terminal, red green blue (RGB) terminal and network interface connection, etc. any one or more. This application does not limit the number and type of external device interfaces.

In the technical solutions shown in the embodiments of the present application, the first chip is connected to the camera. During the video chat, the camera is used to collect the user's image information in real time, the first chip obtains the image information, and the USB is mainly used to convert the image of the camera. The data is transferred to the second chip via USB.

The main function of the network cable interface is that the second chip and the first chip can access the Internet at the same time, and the buttons of the remote control are also transmitted to the first chip through the network cable interface.

The second interface mainly sends the signal received by the first chip to the second chip, and the signal includes: first video data, image information collected by the camera, and the like. The signal received by the first chip is transmitted to the second chip through the second communication interface. It should be noted that, in the technical solutions shown in the embodiments of the present application, the second interface is not open to the user.

The first interface is mainly used for an external set-top box and other equipment, and the external set-top box receives a signal and transmits it to the second chip through the first communication interface.

the second chip, configured to receive parameters to be adjusted, the parameters to be adjusted include a first parameter to be adjusted and a second parameter to be adjusted;

The second chip is also used to determine the channel to which the signal source is connected;

In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, the second chip is further configured to adjust the video signal received from the first interface according to the adjustment parameter;

In response to the channel connected to the signal source being the second interface connected to the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first A chip generates a video signal sent by the first chip to the second chip according to the first parameter to be adjusted, and the second chip adjusts the video signal received from the first chip according to the second adjustment parameter;

The second chip is also used for sending the adjusted video signal to the display screen.

A fourth aspect of the embodiments of the present application shows a display device, and for details, please refer to FIG. 10 , including: a first chip connected to the first chip, a second chip, and a second chip connected to the second chip Display:

the second chip is configured to receive a first parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust the video layer image signal;

In response to the video signal being sent by the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first chip can be adjusted according to the parameter to be adjusted adjusting the video layer image signal in the video signal sent to the second chip;

In response to the video signal being directly received by the second chip, the second chip is further configured to adjust the video layer image signal in the received video signal according to the to-be-adjusted parameter, the second chip according to the second adjustment parameter Conditioning the video signal received from the first chip. Direct reception means that the second chip is directly connected to the outside of the display device and receives signals or data from the outside.

It can be seen from the above technical solutions that the embodiments of the present application show an image quality processing method and a display device. The technical solutions shown in the embodiments of the present application, on the premise of distinguishing signal input ends, allocate parameters to be adjusted by different signal input ends, For the wired video input through the first interface, the parameters to be adjusted of the wired video signal are directly adjusted on the second chip, so as to achieve the image quality processing effect of the wired video signal. For the first video signal input through the second interface, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip generates the first chip according to the first parameter to be adjusted and sends it to the second chip The second chip adjusts the video signal received from the first chip according to the second adjustment parameter, and finally sends the adjusted video signal to the display screen. The above-mentioned method effectively avoids the occurrence of the problems of outline and color distortion of the graphics layer signal in the process of image quality processing.

It should be understood that the terms "first", "second", "third", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that data so used may be interchanged under appropriate circumstances, eg, can be implemented according to an order other than those presented in the illustrations or descriptions of the embodiments of the present application.

Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover but not exclusively include, for example, a product or device incorporating a series of components is not necessarily limited to those explicitly listed, but may include No other components are expressly listed or inherent to these products or devices.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Claims (8)

1. An image quality processing method, applied to a display device, the display device comprising a display screen, a second chip connected to the display screen, and a first chip connected to the second chip, wherein the method comprises: the second chip receives a parameter to be adjusted, and the parameter to be adjusted includes a first parameter to be adjusted and a second parameter to be adjusted; the second chip determines the channel to which the signal source is connected; In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, the second chip adjusts the video signal received from the first interface according to the adjustment parameter; In response to the channel connected to the signal source being the second interface connected to the first chip, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip can A parameter to be adjusted generates a video signal sent by the first chip to the second chip, and the second chip adjusts the video signal received from the first chip according to the second adjustment parameter; The second chip sends the adjusted video signal to the display screen. 2. The method according to claim 1, wherein the step of the first chip generating the video signal sent by the first chip to the second chip according to the first parameter to be adjusted is specifically: The first chip receives a first video signal, the first video signal includes a video layer signal and a graphics layer signal, the first chip adjusts the relevant parameters of the video layer signal according to the adjustment value of the first parameter to be adjusted, and generates an adjusted video layer signal; The first chip mixes the graphics layer signal and the adjusted video layer signal to generate an HDMI video signal sent to the second chip; The second chip adjusting the video signal received from the first chip according to the second adjustment parameter is specifically: The second chip adjusts the relevant parameters of the HDMI video signal according to the adjustment value of the second parameter to be adjusted. 3. The method according to claim 1, wherein the first interface is a cable television signal interface, and the step of the second chip adjusting the video signal received from the first interface according to the adjustment parameter is specifically: : The second chip adjusts the relevant parameters of the wired video signal according to the parameter to be adjusted, where the line video signal is the video signal received from the first interface. 4 . The method according to claim 1 , wherein the second parameter to be adjusted is at least one of a white balance parameter and a gamma parameter. 5 . 5. The method according to any one of claims 1-3, wherein the first parameter to be adjusted is a contrast parameter, a brightness parameter, a color parameter, a hue parameter, a sharpness parameter, a hue parameter, and a color temperature parameter, Noise reduction parameters, mpeg noise reduction parameters, point noise reduction parameters, white enhancement parameters, color enhancement parameters, red gain parameters, green gain parameters, blue gain parameters, R-compensation parameters, G-compensation parameters, B-deviation parameters at least one. 6. An image quality processing method, applied to a display device, the display device comprising a display screen, a second chip connected to the display screen, and a first chip connected to the second chip, wherein the method comprises: The second chip receives a parameter to be adjusted, the parameter to be adjusted includes a first parameter to be adjusted and a second parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust the video layer image signal; In response to the video signal being sent by the first chip, the second chip sends the first parameter to be adjusted to the first chip, so that the first chip generates and sends the parameter to the first chip according to the parameter to be adjusted. The video layer image signal in the video signal of the two chips; In response to the video signal being directly received by the second chip, the second chip adjusts the video layer image signal in the received video signal according to the parameter to be adjusted. 7. A display device, comprising: a first chip connected to the first chip, a second chip and a display screen connected to the second chip: the second chip, configured to receive parameters to be adjusted, the parameters to be adjusted include a first parameter to be adjusted and a second parameter to be adjusted; The second chip is also used to determine the channel to which the signal source is connected; In response to the channel connected to the signal source being the first interface directly connected to the outside of the display device by the second chip, the second chip is further configured to adjust the video signal received from the first interface according to the adjustment parameter; In response to the channel connected to the signal source being the second interface connected to the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first A chip generates a video signal sent by the first chip to the second chip according to the first parameter to be adjusted, and the second chip adjusts the video signal received from the first chip according to the second adjustment parameter; The second chip is also used for sending the adjusted video signal to the display screen. 8. A display device, comprising: a first chip connected to the first chip, a second chip and a display screen connected to the second chip: the second chip is configured to receive a first parameter to be adjusted, wherein the first parameter to be adjusted refers to a parameter used to adjust the video layer image signal; In response to the video signal being sent by the first chip, the second chip is further configured to send the first parameter to be adjusted to the first chip, so that the first chip can be adjusted according to the parameter to be adjusted generating a video layer image signal in the video signal sent to the second chip; In response to the video signal being directly received by the second chip, the second chip is further configured to adjust the video layer image signal in the received video signal according to the parameter to be adjusted.

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