Signal processing system and method

Abstract

Embodiments of the present application relate to a signal processing system and method, comprising: a split box, a display terminal, and a connection assembly connecting the split box and the display terminal; the split box is used to receive an external audio and video signal source, and send the external audio and video signal source to the display terminal through the connection assembly; a main board on screen is arranged in the display terminal, and a SOC chip and a timing controller are arranged on the main board on screen; the SOC chip is used to decode and process the external audio and video signal received through the connection assembly, and output a V-by-One image signal to the timing controller, so as to drive the display panel of the display terminal to display images. Thus, by integrating the SOC chip in the display terminal, the V-by-One image signal can be directly transmitted from the SOC chip to the timing controller inside the main board on screen, the circuit complexity is reduced, the signal path is shortened, the transmission delay is reduced, and the dependence on the pairing of specific conversion chips is eliminated.

Description

Technical Field

[0001] This application relates to the field of signal processing technology, and in particular to a signal processing system and method. Background Technology

[0002] With the development of ultra-high-definition display technology, the system architecture of television display devices is also constantly evolving. Current television systems typically employ a split structure, where the signal processing unit is housed in an external enclosure and connected to the display terminal via cables. This external enclosure usually integrates a system-on-a-chip (SOC chip) for decoding and processing audio and video signals from external sources such as HDMI and USB interfaces, and then transmitting the processed image signals to the display terminal for display.

[0003] In existing technologies, since the SOC chip is typically located at the split-type TV box, and the display panel inside the display terminal needs to receive the V-by-One image signal output by the SOC chip through a timing controller for driving, the V-by-One signal output by the SOC chip usually needs to be converted into a long-distance transmission interface signal such as HDMI before being transmitted to the display terminal via cable. After being sent from the split-type TV box to the display terminal, the interface signal is then converted back into a V-by-One image signal by a signal conversion chip on the display terminal side for use by the timing controller. Although this solution can achieve signal transmission for split-type TVs, it introduces multiple interface protocol conversions in the signal transmission link.

[0004] Since the aforementioned multiple signal interface conversions not only increase the complexity of the system structure and hardware costs, but may also lead to problems such as signal delay, increased power consumption, and decreased system reliability, how to reduce the interface conversion of image signals between the split box and the display terminal in a split-type TV system, so as to simplify the signal transmission link and improve the overall system performance, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, in order to solve the above-mentioned technical problems or some of the technical problems, this application provides a signal processing system and method.

[0006] In a first aspect, embodiments of this application provide a signal processing system, including: The separate box, the display terminal, and the connecting component connecting the separate box and the display terminal are physically separated from each other. The connecting component is configured only for transmitting a target signal between the separate box and the display terminal. The target signal includes at least an external audio and video signal source. The split box is used to receive external audio and video signal sources and send the external audio and video signal sources to the display terminal through the connection component; The display terminal is equipped with an on-screen motherboard, and the on-screen motherboard is equipped with a SOC module; The SOC module is used to decode the external audio and video signals received via the connection component and output drive signals to the display panel of the display terminal to drive the display panel to display images.

[0007] In one possible implementation, a first power amplifier group is provided inside the split box, and a second power amplifier group is provided on the motherboard on the screen. The SOC module includes at least: an SOC chip, the SOC chip outputs an audio signal, the audio signal includes a first audio path and a second audio path, the first audio path is that the SOC chip directly outputs the audio signal to the second power amplifier group, and after being amplified by the second power amplifier group, it drives the built-in speaker of the display terminal; The second audio path involves the SOC chip packaging the audio signal into a USB signal, transmitting it to the split box via the connection component, and then amplifying it through the second power amplifier group to drive the external speaker.

[0008] In one possible implementation, a power board is provided inside the split box, and the power board outputs a first DC voltage, a second DC voltage and a third DC voltage; The first DC voltage is transmitted to the display terminal via the connection component and input to the on-screen power supply of the display terminal, and is converted by the on-screen power supply into the driving voltage required by the backlight constant current module of the display terminal; The second DC voltage is transmitted to the display terminal via the connection component and input to the power management module of the on-screen motherboard to provide power supply voltage to the power management module; The third DC voltage is transmitted to the display terminal via the connection component and input to the on-screen motherboard to provide the operating voltage for the SOC chip.

[0009] In one possible implementation, the connection assembly includes a power control signal line; The power control signal line connects the on-screen motherboard and the split box, and the power control signal is output from the on-screen motherboard to the split box; When the power control signal is low, it is used to control the on-screen power supply and the power board to enter standby mode; When the power control signal is high, it is used to control the on-screen power supply and the power board to enter the working state.

[0010] In one possible implementation, the external audio and video signal source includes multiple HDMI signals and USB signals; The split box is equipped with an HDMI signal switching chip and a USB expansion chip. The HDMI signal switching chip is used to select and switch multiple HDMI signals, and transmit the selected HDMI signal to the SOC chip via the connection component; The USB expansion chip is used to expand the interface of the USB signal and transmit the expanded USB signal to the SOC chip via the connection component.

[0011] In one possible implementation, the connection component includes a first connector disposed on the split box, a second connector disposed on the display terminal, and an interconnecting cable connecting the first connector and the second connector, wherein the interconnecting cable includes at least: audio and video signal lines, power supply signal lines, and control signal lines; The first connector and the second connector are multi-pin connectors, wherein some pin definitions have been reconfigured.

[0012] In one possible implementation, the SOC module further includes a timing controller, and the SOC chip is connected to the timing controller via a V-by-One image signal interface; The SOC chip is used to directly convert the decoded external audio and video signals into V-by-One image signals and output them to the timing controller through the image signal interface. The timing controller converts the V-by-One image signals into the driving signals and outputs them to the display panel. The V-by-One image signals are transmitted only within the display terminal.

[0013] In one possible implementation, the SOC module further includes a timing controller integrated on the SOC chip; The SOC chip is used to generate drive signals for driving the display panel directly inside the SOC chip after completing the decoding processing of external audio and video signals, and output the drive signals to the display panel. The generation and transmission of the V-by-One image signal are both completed inside the SOC chip.

[0014] In one possible implementation, the SOC chip is used to generate an HDMI selection control signal according to a signal source selection instruction input by the user, and send the HDMI selection control signal to the HDMI signal switching chip via the connection component to control the HDMI signal switching chip to select the corresponding HDMI signal for output.

[0015] In a second aspect, embodiments of this application provide a signal processing method applied to the display terminal described in the first aspect, comprising: Receives external audio and video signal sources transmitted from the split box via a connection component, wherein the external audio and video signal sources include at least HDMI signals or USB signals; After the external audio and video signal source is decoded by the SOC module in the on-screen motherboard of the display terminal, a driving signal is generated to drive the display panel in the display terminal to drive the display panel to display images. The SOC module includes at least one SOC chip.

[0016] The signal processing system provided in this application includes: a split box, a display terminal, and a connecting component connecting the split box and the display terminal. The split box and the display terminal are physically separated. The connecting component is configured only to transmit a target signal between the split box and the display terminal. The target signal includes at least: an external audio and video signal source. The split box is used to receive the external audio and video signal source and send it to the display terminal through the connecting component. The display terminal has an on-screen motherboard, on which a SOC chip and a timing controller are mounted. The SOC chip is used to decode the external audio and video signal received through the connecting component and output a V-by-One image signal to the timing controller to drive the display panel of the display terminal to display an image. Therefore, by integrating the SOC chip into the display terminal, the V-by-One image signal can be directly transmitted from the SOC chip to the timing controller inside the motherboard on the screen, without the need for cross-end transmission through connecting components. This eliminates the need for signal conversion chips on both sides of the separate box and the display terminal, reduces circuit complexity, shortens the signal path, reduces transmission delay, and eliminates the dependence on pairing specific conversion chips, enabling independent upgrades and mixed use of the host and the display screen. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a signal processing system provided in an embodiment of this application; Figure 2 This is a schematic diagram of another signal processing system provided in an embodiment of this application; Figure 3 This is a schematic diagram of another signal processing system provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a signal processing device provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] To facilitate understanding of the embodiments of this application, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this application.

[0020] Figure 1 This is a schematic diagram of the structure of a signal processing system provided in an embodiment of this application, as shown below. Figure 1 As shown, the system specifically includes: The split box 11, the display terminal 12, and the connecting component connecting the split box and the display terminal are physically separated from each other. The connecting component is configured to be used only for transmitting target signals between the split box and the display terminal. The target signals include at least: external audio and video signal sources. The split box is used to receive external audio and video signal sources and send the external audio and video signal sources to the display terminal through the connection component; The display terminal is equipped with an on-screen motherboard 13, and an SOC module 14 is mounted on the on-screen motherboard; The SOC module is used to decode external audio and video signals received via the connection components and output drive signals to the display panel 15 of the display terminal to drive the display panel to display images.

[0021] The signal processing system provided in this application embodiment is applicable to display terminals, which may include, but are not limited to, ultra-high-definition split-type television display devices. In this application scenario, the display terminal adopts a split structure design, physically separating the split box used for interface access and signal aggregation from the display terminal used for image display. Signal transmission between the two is achieved through connecting components. Users can connect external audio and video devices such as set-top boxes, game consoles, and computers through the split box. After the split box accesses and aggregates the external audio and video signal sources, it transmits the relevant signals to the display terminal, which then completes the subsequent image decoding processing and display driving, thereby realizing the playback of television programs or the display of multimedia content.

[0022] In this embodiment, the split box refers to an independent device equipped with multiple external interfaces for connecting external devices and receiving, aggregating, or preliminarily processing external audio and video signals. It is typically physically separate from the display terminal and connected via a connecting component. The display terminal is a device used to display image content, typically including a display panel (liquid crystal display) and control circuitry for driving the display panel. It receives signals from the split box and performs image decoding, processing, and display. The connecting component is a structural component used to establish an electrical connection and enable signal transmission between the split box and the display terminal. It may include connectors, interconnecting cables, and related interface circuits, used to transmit data signals, power signals, or control signals between the two devices. The target signal refers to the type of signal transmitted between the split box and the display terminal, which includes at least an external audio and video signal source, and may also include control signals or power signals. The external audio and video signal source refers to audio and video data signals output by external devices, such as set-top boxes, game consoles, and computers, outputting audio and video data through one or more of the following interfaces: HDMI, USB, or GPMI. The on-screen motherboard refers to the board set inside the display terminal for installing the SOC module. The SOC module includes at least an SOC chip and may also include a timing controller (TCON) connected to the SOC chip and a circuit board for related control circuits. It is used to realize the electrical connection and signal transmission between various functional modules inside the display terminal.

[0023] A System-on-a-Chip (SoC) is a chip that integrates a central processing unit, an image processing unit, a storage control module, and various interface control modules onto a single chip. It decodes and processes input audio and video signals and outputs corresponding image data. The SoC and timing controller can be configured independently and connected via a V-by-One image signal interface. Alternatively, the timing controller function can be integrated into the SoC. In this case, the SoC module acts as a whole, receiving and processing external audio and video signals, and directly outputting P2P signals to the display panel as drive signals.

[0024] V-by-One image signal refers to an image signal interface protocol based on high-speed differential serial transmission technology. It is typically used within display devices to transmit image data from the image processing chip to the display driver circuit, enabling high-speed image data transmission. The timing controller (TCON) is a control chip that receives image signals and generates display panel driving timing signals. It generates corresponding row scan signals, column drive signals, and synchronization control signals based on the image data, thereby driving the display panel to display the image. The display panel refers to the display component used to display image content, such as a liquid crystal display (LCD) or other types of display devices, which can present the corresponding image after receiving the drive signals.

[0025] The television signal transmission system of this embodiment includes a split box, a display terminal, and a connecting component connecting the split box and the display terminal, wherein the split box and the display terminal are two physically separate independent devices. The connecting component is used to establish a signal transmission channel between the split box and the display terminal and is configured to be used only for transmitting target signals, which include at least an external audio and video signal source.

[0026] In practical applications, the split box is equipped with interface modules for connecting external devices, such as one or more of HDMI, USB, or GPMI interfaces. When an external device inputs audio or video data to the split box, the split box first receives the external audio or video signal source from the external device and then sends the external audio or video signal to the display terminal through the connection component. Since the connection component is mainly used to transmit interface data signals between the split box and the display terminal, the relevant signals can be stably transmitted to the display terminal through interconnecting cables.

[0027] The display terminal internally houses an on-screen motherboard, which integrates a System-on-Chips (SOC) module. The SOC module includes at least an SOC chip and may also include a timing controller. The timing controller can be integrated onto the SOC chip, or the SOC chip and timing controller can be independently configured. The timing controller can be located within the on-screen motherboard or within the display terminal and is connected to the SOC chip via a V-by-One image signal interface. If the SOC chip and timing controller are independently configured, the SOC chip receives external audio and video signals transmitted via the connection components and decodes these signals to obtain corresponding image data. Subsequently, the SOC chip generates a V-by-One image signal based on the decoded image data and outputs the V-by-One image signal to the timing controller. Upon receiving the V-by-One image signal, the timing controller performs timing processing on the signal and generates drive signals to drive the display panel of the display terminal, thereby controlling the display panel to complete image refresh and display.

[0028] In the system architecture described above, the SOC chip is located on the display terminal side, which can directly generate V-by-One image signals inside the display terminal and input them to the timing controller. This avoids cross-device transmission and interface protocol conversion of V-by-One image signals between the split box and the display terminal, making the signal transmission link simpler.

[0029] Figure 2 This is a schematic diagram of another signal processing system provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the system specifically includes: The two modules, the physically separated split box and the display terminal, are directly connected by connector A, connector B and interconnecting cables to achieve direct signal and power transmission. The split box has a built-in power board (1) and a split box function board (2). The split box function board is equipped with a power management module A (11), a power amplifier group A (12), a connector A (13), a signal conversion chip (14), a USB expansion chip (15), an HDMI SWITCH chip (HDMI signal switching chip) (16) and an interface module (including: USB interface (17) and HDMI interface (18)), which are responsible for external signal access, format conversion, audio power amplification and power management. The display terminal is equipped with an on-screen motherboard (3), a timing controller (TCON) (4), an on-screen power supply (5), a constant current module B (6), and an LCD screen (including a backlight module and a glass substrate) (7). The on-screen motherboard integrates an SOC chip (31), a power amplifier group B (32), a power management module B (33), and a connector B (34). The SOC chip directly outputs V-by-One image signals to the timing controller to drive the display screen (display panel) to display images on the glass substrate. The figure also clearly marks multiple signal transmission paths: HDMI / USB signals are connected to the split box and then transmitted to the SOC chip through the connection component; the audio signal is divided into two paths, one of which is directly output by the SOC chip to the on-screen power amplifier group B to drive the built-in speaker, and the other is packaged in the USB signal and transmitted back to the split box power amplifier group A to drive the external speaker; the power path includes the distribution and conversion relationship of the three voltage levels of 390V DC, 20V DC, and 12V DC, as well as the flow of ON / OFF control signals in standby / power-on states. The overall architecture enables V-by-One image signals to be directly connected end-to-end inside the motherboard on the screen, without any protocol conversion.

[0030] In one possible implementation, a first power amplifier group is provided inside the split box, and a second power amplifier group is provided on the motherboard on the screen; the SOC chip outputs an audio signal, which includes a first audio path and a second audio path. The first audio path is that the SOC chip directly outputs the audio signal to the second power amplifier group, which amplifies it and drives the built-in speaker of the display terminal; the second audio path is that the SOC chip packages the audio signal into a USB signal, transmits it to the split box through the connection component, and amplifies it after being amplified by the second power amplifier group to drive the external speaker.

[0031] In this embodiment, the system also includes an audio amplification circuit for audio playback. Specifically, a first power amplifier group (...) is provided inside the separate box. Figure 2 A second power amplifier group (A) is set on the mainboard of the display terminal. Figure 2The power amplifier group (B) in the text refers to an audio amplification module consisting of a power amplifier chip and its peripheral circuits, used to amplify audio signals to drive speakers for sound output.

[0032] In actual operation, when decoding external audio and video signal sources, the SOC chip can generate not only image data for display but also corresponding audio signals. When outputting audio signals, the SOC chip forms two different audio transmission paths: a first audio path and a second audio path, thereby enabling audio output from the display terminal's built-in speakers and external speakers respectively.

[0033] The first audio path drives the internal speakers of the display terminal. In this path, the SOC chip directly outputs the audio signal to the second power amplifier group located on the on-screen motherboard. The second power amplifier group amplifies the audio signal and then sends the amplified audio signal to the built-in speakers of the display terminal, thereby driving the built-in speakers to play sound. Through this path, the display terminal's own audio output function can be realized.

[0034] The second audio path is used to drive the external speaker. In this path, the SOC chip first packages the audio signal into USB data format and sends the USB signal to the separate enclosure via the connection component. After receiving the USB signal, the separate enclosure parses the audio data and inputs the parsed audio signal to the first power amplifier group located inside the separate enclosure. After amplifying the audio signal, the first power amplifier group outputs the amplified audio signal to the external speaker connected to the separate enclosure, thereby driving the external speaker to play sound.

[0035] Through the above dual-audio path design, in this system architecture, the SOC chip can drive the internal speakers of the display terminal through the second power amplifier group on the motherboard, and can also transmit audio data to the split box through USB signal, and use the first power amplifier group in the split box to drive the external speakers, thereby realizing multiple audio output methods and improving the audio expansion capability and usage flexibility of the system.

[0036] In one possible implementation, a power board is provided inside the split box. The power board outputs a first DC voltage, a second DC voltage, and a third DC voltage. The first DC voltage is transmitted to the display terminal via a connection component and input to the on-screen power supply of the display terminal, where it is converted into the driving voltage required by the backlight constant current module of the display terminal. The second DC voltage is transmitted to the display terminal via the connection component and input to the power management module of the on-screen motherboard to provide power supply voltage for the power management module. The third DC voltage is transmitted to the display terminal via the connection component and input to the on-screen motherboard to provide operating voltage for the SOC chip.

[0037] In this embodiment, the system also includes a power supply structure for providing power to the various functional modules of the display terminal. A power board is housed inside the separate box. The power board converts externally input AC or DC power into multiple stable DC voltage outputs and provides the required power supply voltage to the display terminal through connecting components. During actual operation, the power board can output at least three different DC voltage levels: a first DC voltage (390V DC), a second DC voltage (12V DC), and a third DC voltage (20V DC). These three DC voltages are transmitted to the display terminal via power lines in the connecting components, thereby providing corresponding power input to the different functional modules within the display terminal.

[0038] The first DC voltage is transmitted to the display terminal via the connection component and then input to the on-screen power supply inside the display terminal. The on-screen power supply is a power conversion circuit located inside the display terminal, used to further convert and regulate the input DC voltage. The on-screen power supply converts the first DC voltage into a driving voltage suitable for the backlight constant current module. The backlight constant current module provides a stable driving current for the backlight source of the display terminal, thereby ensuring the stability of the display panel (…). Figure 2 The liquid crystal display (LCD) in the device can emit light stably under different brightness conditions.

[0039] Simultaneously, the second DC voltage is transmitted to the display terminal via the connection components and then input to the power management module on the on-screen motherboard. The power management module typically includes a power management chip and its peripheral circuitry, used to distribute, regulate, or step down the input voltage, and to provide a stable power supply for various control circuits on the on-screen motherboard, thereby ensuring the stable operation of the internal circuitry of the display terminal.

[0040] In addition, the third DC voltage is also transmitted to the display terminal through the connection component and directly input to the on-screen motherboard to provide operating voltage for the SOC chip. After receiving the power supply of the third DC voltage, the SOC chip can normally perform decoding processing of external audio and video signal sources and the generation of image and audio data, thereby ensuring the normal operation of the core signal processing functions of the television system.

[0041] Through the above power supply structure design, this application utilizes the power board inside the split box to uniformly generate multiple DC voltages and provides power to the display terminal through the connecting components. This eliminates the need for a complete high-power power supply module inside the display terminal, thereby simplifying the power supply structure inside the display terminal and facilitating the overall structural optimization of the split-type television system.

[0042] In one possible implementation, the connection component includes a power control signal line; the power control signal line connects the motherboard on the screen and the separate box, and the power control signal is output from the motherboard on the screen to the separate box; when the power control signal is low, it is used to control the power supply on the screen and the power board to enter the standby state; when the power control signal is high, it is used to control the power supply on the screen and the power board to enter the working state.

[0043] In this embodiment, the connection component also includes a power control signal line for transmitting power control signals (ON / OFF control signals) between the on-screen motherboard and the split box. The power control signal is generated by the on-screen motherboard on the display terminal side and sent to the power board inside the split box via the power control signal line in the connection component, so as to achieve unified control of the power status of the entire system.

[0044] The SOC chip or power management module on the on-screen motherboard generates a power control signal based on the current operating status of the system and outputs it to the connection component through the control interface of the on-screen motherboard. The connection component transmits this power control signal to the power board control port on the separate box side. The power board switches the mode of the internal power conversion circuit according to the received level. When the power control signal is low, the power board controls the internal power conversion module to enter standby mode, maintaining only basic standby power supply. At the same time, the on-screen power supply enters a light load or low power mode to reduce the overall power consumption. When the power control signal is high, the power board activates each power output module, outputting the first DC voltage, the second DC voltage, and the third DC voltage, and provides the power supply voltage required for normal operation of the display terminal. At the same time, the on-screen power supply enters normal operation mode, providing stable power to the backlight module, the on-screen motherboard, and related functional circuits.

[0045] In this way, the on-screen motherboard on the display terminal side can remotely control the power board inside the split box, enabling unified power supply management for each power supply module under the split structure. This ensures that the system can still achieve stable and reliable power timing control under the split structure condition and reduce the overall standby power consumption.

[0046] In one possible implementation, the external audio and video signal source includes multiple HDMI signals and USB signals; the separate box is equipped with an HDMI signal switching chip and a USB expansion chip; the HDMI signal switching chip is used to select and switch multiple HDMI signals and transmit the selected HDMI signal to the SOC chip via the connection component; the USB expansion chip is used to expand the interface of the USB signal and transmit the expanded USB signal to the SOC chip via the connection component.

[0047] In this embodiment, the external audio and video signal sources include multiple HDMI signals and USB signals. The split box is used to access, manage and aggregate multiple audio, video and data interfaces from external devices, and transmit the processed signals to the SOC chip of the display terminal through the connection component.

[0048] The separate box houses an HDMI signal switching chip and a USB expansion chip. The HDMI signal switching chip connects multiple HDMI input interfaces, each of which can be connected to a set-top box, game console, computer, or other video playback device. When multiple HDMI devices are connected simultaneously, the HDMI signal switching chip detects the multiple HDMI signals and selects one as the currently valid input signal based on the SOC chip or user commands. The selected HDMI signal is then sent to the connection component via signal lines within the separate box, and transmitted to the SOC chip on the display terminal side via a high-speed signal transmission channel within the connection component. The SOC chip decodes the HDMI signal to obtain the corresponding audio and video data.

[0049] Meanwhile, the separate box also houses a USB expansion chip, which connects to multiple USB ports for connecting USB flash drives, external hard drives, cameras, or other USB peripherals. The USB expansion chip expands and manages the data signals from multiple USB ports, converging the data signals from multiple USB devices to the uplink interface and transmitting them to the SOC chip on the display terminal side via the USB signal channel in the connection component. The SOC chip, as the system's main control and processing unit, identifies and manages the received USB data signals, thereby enabling access and control of external storage devices, input devices, or multimedia devices.

[0050] With the above structural setup, the split box mainly undertakes functions such as external interface access, signal selection, and interface expansion, while the SOC chip on the display terminal side is responsible for unified processing of the transmitted audio and video signals and data, thereby achieving efficient access and stable transmission of multiple external audio and video signal sources in the split structure.

[0051] In one possible implementation, the connection component includes a first connector disposed in the split box, a second connector disposed in the display terminal, and an interconnect cable connecting the first connector and the second connector. The interconnect cable includes at least: audio and video signal lines, power supply signal lines, and control signal lines. The first connector and the second connector are multi-pin connectors, wherein some pin definitions are reconfigured.

[0052] In this embodiment, the connection component is used to establish a physical connection channel for signals and power between the split box and the display terminal, so as to realize the unified transmission of audio and video signals, power supply signals, and control signals. Specifically, the connection component includes a first connector disposed on one side of the split box. Figure 2 Connector A in the middle), and the second connector located on one side of the display terminal ( Figure 2 The first connector (B) and the interconnecting cable connecting the first connector and the second connector are respectively installed at the interface positions of the split box and the display terminal, and the electrical connection between the two ends is achieved through the interconnecting cable.

[0053] The interconnect cable contains multiple sets of wires for transmitting different types of signals. The audio / video signal lines transmit high-speed data signals related to external audio / video signal sources between the split box and the display terminal, such as video data output from the HDMI signal switching chip or audio data signals processed by the SOC chip. The power supply signal lines transmit the first, second, and third DC voltages output from the power board inside the split box to the display terminal, providing operating voltage for the on-screen power supply, power management module, and SOC chip circuit modules. The control signal lines transmit system control signals, such as power control signals, interface control signals, or status feedback signals, to achieve coordinated control between the split box and the display terminal.

[0054] Furthermore, both the first and second connectors are multi-pin connectors, with each pin corresponding to a different signal line in the interconnect cable. To accommodate the comprehensive transmission requirements of multiple signal types in a split-type television system, the pin definitions of some pins in the multi-pin connector are reconfigured. Specifically, based on the system's signal distribution scheme, some pins are defined as audio / video signal pins, power supply pins, and control signal pins, enabling a single connection component to simultaneously handle multiple functions such as high-speed data signal transmission, power supply, and control signal interaction. This structural design ensures stable signal transmission while reducing the number of connecting cables required between the split-type box and the display terminal, resulting in a simpler system structure.

[0055] In one possible implementation, the SOC module further includes a timing controller, wherein the SOC chip is connected to the timing controller via a V-by-One image signal interface; When the SOC chip and the timing controller are connected through the V-by-One image signal interface, the SOC chip is used to directly convert the decoded external audio and video signals into V-by-One image signals and output them to the timing controller. The timing controller converts the V-by-One image signals into drive signals and outputs them to the display panel. The V-by-One image signals are transmitted only within the display terminal.

[0056] In this embodiment, with the SOC chip and timing controller configured independently, they are connected via a V-by-One image signal interface. After decoding the external audio and video signal source, the SOC chip formats the obtained video data according to the V-by-One image signal interface protocol and directly generates the corresponding V-by-One image signal. Subsequently, the V-by-One image signal is transmitted to the timing controller through the high-speed signal lines inside the display terminal. The timing controller performs timing control and data allocation on the image data according to the driving timing of the display panel to drive the display panel of the display terminal to display the image. Since the SOC chip is located on the on-screen motherboard of the display terminal, the V-by-One image signal is transmitted only within the display terminal, without the need for image interface protocol conversion between the separate box and the display terminal, thereby reducing signal conversion steps and lowering transmission complexity.

[0057] In one possible implementation, the SOC module further includes a timing controller integrated on the SOC chip; After completing the decoding of external audio and video signals, the SOC chip directly generates drive signals for driving the display panel inside the SOC chip and outputs the drive signals to the display panel. The generation and transmission of V-by-One image signals are both completed inside the SOC chip.

[0058] In this embodiment, when the timing controller is integrated on the SOC chip, the SOC module, as a whole, receives and processes external audio and video signals, and then performs the conversion of the external audio and video signals into drive signals for the display panel for output. That is, the SOC module directly outputs P2P signals to the display panel as drive signals for the display panel.

[0059] In one possible implementation, the SOC chip is used to generate an HDMI selection control signal based on the signal source selection command input by the user, and send the HDMI selection control signal to the HDMI signal switching chip via the connection component to control the HDMI signal switching chip to select the corresponding HDMI signal for output.

[0060] In this embodiment, the SOC chip is also used to control the HDMI signal switching chip inside the split box to achieve selection and switching of multiple HDMI signal sources. When the user inputs a signal source selection command through the remote control or system interface, the SOC chip generates a corresponding HDMI selection control signal according to the signal source selection command. Subsequently, the HDMI selection control signal is transmitted to the control port of the HDMI signal switching chip inside the split box through the control signal line in the connection component. After receiving the HDMI selection control signal, the HDMI signal switching chip selects the corresponding HDMI signal from multiple HDMI input interfaces as the output signal according to the input channel indicated by the control signal, and transmits the HDMI signal to the SOC chip of the display terminal through the connection component for subsequent decoding processing, thereby realizing remote selection and switching of multiple HDMI signal sources.

[0061] The system provided in this application eliminates the signal conversion chip A on the split box side and the signal conversion chip B on the motherboard side of the screen, achieving end-to-end direct connection of V-by-One image signals from the SOC to the TCON. This significantly reduces BOM costs and circuit design complexity while constructing the shortest signal path. The image signal undergoes no protocol conversion throughout, resulting in reduced transmission latency and improved signal integrity. It is particularly suitable for 8K / 120Hz and above ultra-high-definition, low-latency display scenarios. In terms of audio transmission, the same SOC audio source can be flexibly adapted through dual paths. It can directly drive the built-in speakers or use the existing USB signal cable to carry audio data back to the split box to drive external speakers without occupying additional cable cores, achieving lightweight interconnection. At the system level, since it eliminates the dependence on pairing with specific conversion chip models, the host and display can be upgraded independently and used in combination, greatly enhancing supply chain flexibility and product iteration efficiency. In terms of power management, the ON / OFF control signal enables hierarchical power supply management in standby and power-on states, meeting energy efficiency requirements.

[0062] Figure 3 This is a schematic diagram of another signal processing system provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the system specifically includes: exist Figure 2 Based on this, the signal conversion chip uses BP1548C2, the HDMI switch uses ITE6636, and for simplicity, only one USB interface is designed, so no USB expansion chip is needed. The SOC chip uses MT9655. Because of the BP1548C2 chip used, the ITE6636 requires firmware, which is designed to be upgradeable by the SOC host system.

[0063] In this embodiment, Figure 3The split box has a built-in power supply board (1) and a split box function board (2). The split box function board is equipped with a power management module A (11), a power amplifier group A (12), a connector A (13), a signal conversion chip (14), an HDMISWITCH chip (HDMI signal switching chip) (16), and an interface module (including: USB interface (17) and HDMI interface (18)), which is responsible for external signal access, format conversion, audio power amplification and power management. The display terminal is equipped with an on-screen motherboard (3), a timing controller (TCON) (4), an on-screen power supply (5), a constant current module B (6), and an LCD screen (including a backlight module and a glass substrate) (7). The on-screen motherboard integrates a SOC chip (31), a power amplifier group B (32), a power management module B (33), and a connector B (34). The power supply board: inputs AC power and outputs 390VDC, 12VDC and 20VDC provided by the power supply group for conditioning and distribution, and supplies power to each function module of the split box. The 390VDC power supply, after passing through connector A and a cable, is output to connector B of the display terminal, providing the core power source for the on-screen power supply in the display terminal. The 20VDC power supply, after passing through connector A and a cable, is output to connector B of the display terminal, providing power to the control section of the on-screen power supply in the display terminal to meet the system's power supply control logic. The 12VDC power supply, after passing through connector A and a cable, is output to connector B of the display terminal, providing power to the on-screen motherboard with the SOC in the display terminal to meet the system's power supply control logic. The split-box functional board mainly includes connector A, power management module A, signal conversion chip, power amplifier group A, and USB expansion chip. Specifically: Power amplifier group A is powered by the 20VDC output from the split-box power board and is used to drive the external speakers of the split-box; Power management module A has a 12VDC input and outputs 20VDC for power amplifier group A; the signal conversion chip converts USB signals to I2S signals and connects to the I2S input of power amplifier group A; simultaneously, the I2C signal connects to HDMI, USB, and other interface expansion chips to achieve master-slave control. In this scenario, the signal conversion chip needs to have MCU functionality. If it lacks this functionality, an MCU can be added. The chip's USB input terminal, after passing through connector A, connects via a cable to connector B on the on-screen motherboard, and finally to the USB signal pin of the SOC chip. During normal operation, the on-screen motherboard outputs a packaged audio signal through this USB interface.

[0064] Interface module: Includes HDMI interface (multiple channels can be set as needed, such as HDMI 2.1×3) and USB interface for connecting external high-definition signal sources and expansion devices; as described in this patent, the connector is designed with 1 HDMI and 1 USB for port expansion. When the number of HDMI and USB ports of the box exceeds 1, an HDMI SWITCH chip and a USB expansion chip need to be added accordingly.

[0065] Signal switching and expansion chips: including HDMI SWITCH chip and USB expansion chip, used to realize multi-channel HDMI signal switching and USB interface expansion; The separate box does not contain a signal conversion chip A (such as RTD2800) required in the prior art. The V-by-One image signal output by the SOC chip is transmitted directly to the motherboard on the screen through connector A, interconnect cable, and connector B without undergoing any protocol conversion.

[0066] The on-screen motherboard is integrated inside the display terminal, and it integrates: a TCON (Timing Controller): which directly receives V-by-One image signals from the SOC chip in the separate box and drives the glass substrate to display the image; an on-screen power supply: which receives the power supply voltage (20VDC, 390VDC) from the separate box, where the 390VDC is converted into the power supply required by the backlight constant current module B, and the converted 12V_TCON is the logic board operating voltage, etc.; the 12VDC from the separate box provides power to the on-screen motherboard, which is input to the power management module B, and after power conversion and distribution, supplies power to the SOC chip and other power logic. The 20VDC from the separate box provides power to the power management module of the on-screen power supply, realizing the power supply head in standby and power-on states.

[0067] Constant current module B: provides constant current drive for the backlight module; Power amplifier group B: powered by the 20V_AMP output from the on-screen power board, drives the built-in speakers of the display terminal; Power management module B: performs secondary conditioning of the input voltage to meet the power requirements of various modules on the on-screen motherboard; SOC chip: integrates the main control functions of the TV system, directly outputting V-by-One image signals, I²S audio signals, I²C control signals, and USB signals; In addition, the on-screen motherboard provides power ON / OFF control signals for the on-screen power supply and the separate box power board. In standby mode, the ON / OFF control signal is low, and the on-screen power supply and power board are in light-load high-efficiency mode; in power-on mode, the ON / OFF control signal is high, and the on-screen power supply and power board are in working mode. The on-screen motherboard does not have the signal conversion chip B required in existing technologies. The V-by-One image signal from the split box is directly input to the TCON without going through the HDMI protocol restoration process.

[0068] Signal transmission path: HDMI / USB signal from the split box → Connector A → Interconnect cable → Connector B → SOC chip → V-by-One signal (direct output) → On-screen motherboard TCON (direct input). Audio transmission path: SOC chip → I²S audio signal → On-screen motherboard amplifier group B. SOC chip → I²S audio signal (packaged in USB signal) → Connector B → Interconnect cable → Connector A → Split box local amplifier group A.

[0069] Power transmission path: Power supply group → Separate box power board → Connector A → Interconnect cable → Connector B → On-screen motherboard on-screen power supply → Each load module.

[0070] This application also provides a signal processing method, applied to... Figure 1 The display terminal in the system includes: Receives external audio and video signal sources transmitted from the split box via the connection component, wherein the external audio and video signal sources include at least HDMI signals or USB signals; After decoding and processing external audio and video signal sources, the SOC module in the on-screen motherboard of the display terminal generates driving signals to drive the display panel in the display terminal to drive the display panel to display images. The SOC module includes at least: an SOC chip.

[0071] In this embodiment, the signal processing method is executed by the display terminal to process the external audio and video signals transmitted from the split box and drive the display panel to display images. Specifically, the display terminal receives the external audio and video signal source transmitted from the split box through a connection component. The external audio and video signal source includes at least HDMI signals or USB signals. The HDMI signal can originate from external devices such as a set-top box, game console, or computer, while the USB signal can originate from a USB flash drive, external hard drive, or other USB peripherals. These signals are transmitted to the on-screen motherboard of the display terminal via the audio and video signal cable in the connection component.

[0072] Subsequently, the SOC module located on the on-screen motherboard processes the received external audio and video signals. The SOC module includes at least an SOC chip, and may also include a timing controller (TCON) connected to the SOC chip and a circuit board containing related control circuitry. This circuitry is used to establish electrical connections and signal transmission between various functional modules within the display terminal. The SOC chip and timing controller can be independently configured and communicate via a V-by-One image signal interface. Alternatively, the timing controller function can be integrated into the SOC chip. In this case, the SOC module, as a whole, receives and processes external audio and video signals, directly outputting P2P signals to the display panel as driving signals for the display panel.

[0073] With the SOC chip and timing controller configured independently, when the input is an HDMI signal, the SOC chip parses and decodes the video data and extracts the corresponding image data. When the input is a USB signal, the SOC chip first identifies and reads the USB interface data and decodes the multimedia files contained within it to obtain the corresponding video data. After decoding the video data, the SOC chip encapsulates and converts the obtained image data according to the V-by-One interface protocol to generate the corresponding V-by-One image signal.

[0074] Next, the SOC chip transmits the generated V-by-One image signal through the signal lines inside the display terminal to the timing controller located on the on-screen motherboard. The timing controller, based on the display panel's driving timing requirements, performs timing analysis, data allocation, and synchronization control on the received V-by-One image signal, and generates driving signals to drive the display panel. These driving signals are further transmitted to the display panel of the display terminal, causing the display panel to refresh line by line or column by column according to the corresponding image data, thereby completing the image display on the display terminal. Through the above processing flow, the reception, decoding, and display driving of external audio and video signals are realized in a split-type television structure.

[0075] This embodiment sets up a SOC chip on the on-screen motherboard of the display terminal. The SOC chip decodes the external audio and video signal source transmitted by the split box and directly outputs the V-by-One image signal to the timing controller. This allows the image signal to be transmitted only inside the display terminal, thereby avoiding image interface protocol conversion between the split box and the display terminal, reducing signal conversion links and interface circuit complexity, reducing system transmission loss and implementation cost, and improving the stability of image signal transmission and the overall reliability of the display system.

[0076] Figure 4 This application also provides a schematic diagram of the structure of a signal processing device, including: The receiving module 41 is used to receive an external audio and video signal source transmitted by the split box via the connecting component, wherein the external audio and video signal source includes at least an HDMI signal or a USB signal. The processing module 42 is used to decode the external audio and video signal source through the SOC module in the on-screen motherboard of the display terminal, and generate a driving signal for driving the display panel in the display terminal to drive the display panel to display images. The SOC module includes at least an SOC chip.

[0077] The signal processing apparatus provided in this embodiment can execute all the steps of the signal processing method, thereby achieving the technical effect of the signal processing method. For details, please refer to the relevant description of the signal processing method. For the sake of brevity, it will not be elaborated here.

[0078] Figure 5 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 5 The illustrated display device 500 includes at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503. The various components in the display device 500 are coupled together via a bus system 505. It is understood that the bus system 505 is used to implement communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in… Figure 5 The general designated all buses as Bus System 505.

[0079] The user interface 503 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0080] It is understood that the memory 502 in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate Synchronous DRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 502 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0081] In some implementations, memory 502 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 5021 and application program 5022.

[0082] The operating system 5021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 5022 includes various applications, such as a media player and a browser, used to implement various application functions. Programs implementing the methods of this application embodiment can be included in application program 5022.

[0083] In this embodiment, by calling the program or instructions stored in memory 502, specifically the program or instructions stored in application program 5022, processor 501 executes the method steps provided in each method embodiment, including, for example: Receives external audio and video signal sources transmitted from the split box via a connection component, wherein the external audio and video signal sources include at least HDMI signals or USB signals; After the external audio and video signal source is decoded by the SOC module in the on-screen motherboard of the display terminal, a driving signal is generated to drive the display panel in the display terminal to drive the display panel to display images. The SOC module includes at least one SOC chip.

[0084] The methods disclosed in the embodiments of this application can be applied to or implemented by processor 501. Processor 501 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in processor 501. The processor 501 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or can be executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 502. Processor 501 reads the information in memory 502 and, in conjunction with its hardware, completes the steps of the above method.

[0085] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0086] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0087] The display device provided in this embodiment can be as follows: Figure 5 The device shown can perform all the steps of the signal processing method, thereby achieving the technical effect of the signal processing method. For details, please refer to the relevant description of the signal processing method. For the sake of brevity, it will not be elaborated here.

[0088] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A signal processing system, characterized in that, include: The separate box, the display terminal, and the connecting component connecting the separate box and the display terminal are physically separated from each other. The connecting component is configured only for transmitting a target signal between the separate box and the display terminal. The target signal includes at least an external audio and video signal source. The split box is used to receive external audio and video signal sources and send the external audio and video signal sources to the display terminal through the connection component; The display terminal is equipped with an on-screen motherboard, and the on-screen motherboard is equipped with a SOC module; The SOC module is used to decode the external audio and video signals received via the connection component and output drive signals to the display panel of the display terminal to drive the display panel to display images.

2. The system according to claim 1, characterized in that, The split box is equipped with a first power amplifier group, and the motherboard on the screen is equipped with a second power amplifier group. The SOC module includes at least: an SOC chip, the SOC chip outputs an audio signal, the audio signal includes a first audio path and a second audio path, the first audio path is that the SOC chip directly outputs the audio signal to the second power amplifier group, and after being amplified by the second power amplifier group, it drives the built-in speaker of the display terminal; The second audio path involves the SOC chip packaging the audio signal into a USB signal, transmitting it to the split box via the connection component, and then amplifying it through the second power amplifier group to drive the external speaker.

3. The system according to claim 2, characterized in that, The split box is equipped with a power board, which outputs a first DC voltage, a second DC voltage and a third DC voltage. The first DC voltage is transmitted to the display terminal via the connection component and input to the on-screen power supply of the display terminal, and is converted by the on-screen power supply into the driving voltage required by the backlight constant current module of the display terminal; The second DC voltage is transmitted to the display terminal via the connection component and input to the power management module of the on-screen motherboard to provide power supply voltage to the power management module; The third DC voltage is transmitted to the display terminal via the connection component and input to the on-screen motherboard to provide the operating voltage for the SOC chip.

4. The system according to claim 3, characterized in that, The connection component is provided with a power control signal line; The power control signal line connects the on-screen motherboard and the split box, and the power control signal is output from the on-screen motherboard to the split box; When the power control signal is low, it is used to control the on-screen power supply and the power board to enter standby mode; When the power control signal is high, it is used to control the on-screen power supply and the power board to enter the working state.

5. The system according to claim 2, characterized in that, The external audio and video signal sources include multiple HDMI signals and USB signals; The split box is equipped with an HDMI signal switching chip and a USB expansion chip. The HDMI signal switching chip is used to select and switch multiple HDMI signals, and transmit the selected HDMI signal to the SOC chip via the connection component; The USB expansion chip is used to expand the interface of the USB signal and transmit the expanded USB signal to the SOC chip via the connection component.

6. The system according to claim 1, characterized in that, The connection component includes a first connector disposed on the split box, a second connector disposed on the display terminal, and an interconnecting cable connecting the first connector and the second connector. The interconnecting cable includes at least: an audio / video signal line, a power supply signal line, and a control signal line. The first connector and the second connector are multi-pin connectors, wherein some pin definitions have been reconfigured.

7. The system according to claim 2, characterized in that, The SOC module further includes a timing controller, and the SOC chip is connected to the timing controller via a V-by-One image signal interface; The SOC chip is used to directly convert the decoded external audio and video signals into V-by-One image signals and output them to the timing controller through the image signal interface. The timing controller converts the V-by-One image signals into the driving signals and outputs them to the display panel. The V-by-One image signals are transmitted only within the display terminal.

8. The system according to claim 7, characterized in that, The SOC module further includes a timing controller, which is integrated on the SOC chip; The SOC chip is used to generate drive signals for driving the display panel directly inside the SOC chip after completing the decoding processing of external audio and video signals, and output the drive signals to the display panel. The generation and transmission of the V-by-One image signal are both completed inside the SOC chip.

9. The system according to claim 5, characterized in that, The SOC chip is used to generate an HDMI selection control signal according to the signal source selection command input by the user, and send the HDMI selection control signal to the HDMI signal switching chip via the connection component to control the HDMI signal switching chip to select the corresponding HDMI signal for output.

10. A signal processing method, characterized in that, The display terminal described in claim 1 includes: Receives external audio and video signal sources transmitted from the split box via a connection component, wherein the external audio and video signal sources include at least HDMI signals or USB signals; After the external audio and video signal source is decoded by the SOC module in the on-screen motherboard of the display terminal, a driving signal is generated to drive the display panel in the display terminal to drive the display panel to display images. The SOC module includes at least one SOC chip.

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