LED display screen and intelligent control system for home theater and television terminal

Abstract

The invention relates to the technical field of home theaters and television terminals, and particularly discloses an LED display screen and intelligent control system of a home theater and television terminal, which comprises an audio module, a display control system, an integrated media module (I MB), a source server and a power supply module, the source server inputs external video and audio sources, and the external video and audio sources are transmitted to the LED display screen after being processed by the IMB card main processor; video signals are transmitted to the I MB control card through interfaces such as a USB, a DVI, an HDM I and a DP, and data are processed by adopting a heterogeneous computing architecture in the main processor; after data is processed by the I MB control card, the control system integrates video processing, audio processing, optical fiber transmission and system control functions, and the sending, video processing and system operation capabilities of the control system are realized through a built-in optical fiber module and a main processor, so that the overall system architecture is simplified, multi-stage transmission of the data is avoided, signal delay is shortened, and communication loss is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of home theater and television terminal technology, in particular to a LED display screen and intelligent control system of home theater and television terminal. BACKGROUND

[0002] At present, the projection technology is mainly used in the cinema to realize the display function, but the projector has low brightness, and it is not clear to watch in the daytime or strong light environment. In addition, due to the blocking of the projection screen and the incomplete coverage of the light source, it is easy to cause problems such as poor contrast, color distortion, and uneven display.

[0003] The LED display screen is a direct display device, which has advantages in brightness, contrast, and color gamut. Although the traditional display screen is subject to the resolution problem, by reducing the pitch to form a mini / micro LED display screen, it can meet the needs of indoor scenes such as conferences, homes, and cinemas. The LED display screen is generally a modular structure composed of multiple boxes containing LED modules, and the control mode is generally divided into synchronous and asynchronous control. Each box has a receiving card, and the specific control mode is that the sending card transmits the processed data to each box receiving card, and the receiving card converts the digital signal into an analog voltage through a constant current driving chip to drive the three primary color LED lamp beads to emit light, realizing precise pixel point control. When the LED display screen is applied in the home theater and television scene, there are still problems such as high-density integration difficulty, poor heat dissipation, redundant and complex system wiring, poor data transmission stability and compatibility between the multimedia server and the display screen control system.

[0004] The present application realizes a LED display screen and control system which can be applied in indoor home theater or television scene through the high-density integration of the LED display screen and the design of the intelligent control system in the home theater and television scene. Through the fusion design of packaging process, box structure, heat dissipation, system and communication scheme, the problems of low display resolution, poor heat dissipation, redundant and complex system wiring, poor compatibility between the display control system and the server when the LED display screen is applied in the home theater and television scene are solved, and the LED display integrated control system with simple structure, good control and communication stability is realized. SUMMARY

[0005] The present application relates to the field of home theater and television terminal technology, in particular to a LED display screen and intelligent control system of home theater and television terminal.

[0006] The present application relates to the field of home theater and television terminal technology, in particular to a LED display screen and intelligent control system of home theater and television terminal.

[0007] The intelligent control system of the LED display screen of the home theater and television terminal comprises an audio module, a display control system, an integrated media module, a source server and a power module.

[0008] The source server receives external video and audio sources, which are then processed by the main processor of the integrated media module (IMB) card and transmitted to the LED display screen.

[0009] Video signals are transmitted to the I MB control card via interfaces such as USB, DVI, HDMI, and DP, and the data is processed using a heterogeneous computing architecture in the main processor.

[0010] After the data is processed by the IMB control card, it is transmitted via the LVDS (Low Voltage Differential Signaling) interface, photoelectric conversion by a high-speed fiber optic module, and then transmitted to the receiving card of the LED display screen via the TCP / IP transmission protocol supporting fiber optics and Ethernet. The receiving card is connected to the adapter board via the LVDS interface, and the adapter board is electrically connected to the LED module via multiple female connectors to control the driver IC in the LED module. The LED board driver ICs in each LED cabinet communicate with each other via cascaded SPI interface, and the LED cabinets communicate with each other via cascaded connectors that include the TCP / IP (Transmission Control Protocol / Internet Protocol) communication protocol, thereby driving each pixel to emit light.

[0011] As a further aspect of the present invention: the main processor core is a main processor chip, which is a heterogeneous computing platform, including an FPGA for real-time video processing, encryption and decryption, and coordinate transformation, an ARM for system control and interaction, and a GPU for image rendering.

[0012] As a further aspect of the present invention: the FPGA performs high-speed parallel processing of video pixel-level operations, including format conversion and decoding, point-by-point correction, scaling and stitching control, and image optimization; the ARM processor runs the Android system to handle human-computer interaction, network connection, software APP, and OTA upgrades; and the GPU is used for image processing and rendering, supporting 4K / 8K video decoding.

[0013] As a further aspect of this invention: the video signal processing path for external video is as follows: after the source video is input, it is decrypted, decoded, coordinate format converted, image optimized and scaled by the IMB control card, and then transmitted to the receiving card in the LED display screen through the high-speed fiber optic communication interface and LVDS interface. The receiving card transmits the signal to the adapter board, and then the adapter board transmits the signal to the driver chip and each pixel LED bead through the interface on the LED module. The electrical interface side of the high-speed fiber optic module uses LVDS signal, which is transmitted through fiber optic and Ethernet after photoelectric conversion, and supports the TCP / IP protocol.

[0014] As a further aspect of the present invention: the audio signal processing path of the audio source is to input digital audio through a microphone or peripheral device, perform analog-to-digital conversion after audio processing and decoding, and then transmit it to an external speaker or the built-in speaker of the LED screen.

[0015] As a further embodiment of the present invention: an LED display screen for home theater and television terminal, the LED display screen is used to execute an intelligent control system, a plurality of LED cabinets arranged in a rectangular array behind the display screen, the LED cabinets are provided with a side locking structure, the front of the display screen is a small-pitch LED module with surface potting and encapsulation, and a control box is provided behind one of the LED cabinets.

[0016] The control box includes a metal casing, inside which are a 1 MB control card, a receiver card, and a shielding cover. A fan is located on one side of the metal casing.

[0017] As a further aspect of the present invention: the IMB control card is provided with a main processor chip, a number of high-speed optical fiber communication interfaces are provided on one side of the IMB control card, and a number of LVDS interfaces are provided on the receiving card.

[0018] A heat dissipation channel is provided on one side of the metal casing.

[0019] As a further aspect of the present invention: the LED housing is provided with a plurality of LED modules, the LED module being composed of an LED light board, a driver chip, a housing, and a mask;

[0020] A connector plate is provided on one side of the LED enclosure;

[0021] The LED module is provided with several rows of female interfaces.

[0022] As a further aspect of the present invention: one of the LED housings is provided with a mounting groove 1, the control box is installed in the mounting groove 1, and a mounting groove 2 is provided on one side of the LED housing, and a power supply is provided in the mounting groove 2.

[0023] As a further aspect of the present invention: the side of the LED cabinet is provided with a side locking structure, and adjacent LED cabinets are connected by the side locking structure;

[0024] The LED enclosure is provided with connector interface one and connector interface two on both sides, and two adjacent connector interfaces between two LED enclosures form a connector.

[0025] The beneficial effects of this invention are:

[0026] The control system in this invention integrates video processing, audio processing, fiber optic transmission and system control functions. Its transmission, video processing and system operation capabilities are realized through the built-in fiber optic module and main processor, eliminating the need for separate transmission cards, decoders, video processors and Android control cards, simplifying the overall system architecture, avoiding multi-level data transmission, shortening signal delay and reducing communication loss.

[0027] The IMB control card and receiver card are highly integrated into a single control box for controlling the entire LED display screen. This simple structure, free of complex wiring, lowers the barrier to entry for industrial-grade LED displays in the civilian market, enabling their use in large-screen TVs and home theaters. Compared to traditional TVs, the modular design of LED modules allows for horizontal and vertical scaling, achieving displays exceeding 100 inches in size. Multiple heat dissipation designs ensure the proper functioning of high-data-load chips within the control card.

[0028] The I MB control card integrates multiple functions, including wired and wireless networks, audio, and smart home control. The LED display integrates multiple sensors, which is conducive to receiving video sources from multiple channels and supports human-computer interaction functions such as touch, voice recognition, screen projection, and remote control. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the intelligent control system of the present invention;

[0031] Figure 2 This is a schematic diagram of the back structure of the LED display screen in this invention;

[0032] Figure 3 This is a schematic diagram of the hardware composition of the intelligent control system in this invention;

[0033] Figure 4 This is a schematic diagram of a single LED cabinet structure in this invention;

[0034] Figure 5 This is a schematic diagram of the splicing and connection structure of multiple LED cabinets in this invention.

[0035] In the diagram: 1. Control box; 2. LED enclosure; 3. LED module; 4. Adapter board; 5. Connector; 6. Power supply; 11. IMB control card; 11a. Main processor chip; 11b. High-speed fiber optic communication interface; 12. Receiver card; 12a. LVDS interface; 21. Striped structure; 22. Side lock structure; 23. Mounting slot one; 24. Mounting slot two; 31. Female connector; 51. Connector interface one; 52. Connector interface two. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 As shown, this invention relates to an LED display screen and intelligent control system for home theaters and television terminals, including a small-pitch LED display screen, an audio module, a display control system, an integrated media module (IMB), a source server, and a power supply module. The main operating mode of this control system is to rapidly transmit audio and video data from the source server to the LED display screen for display. Data transmission requires low latency and stability. The specific architecture of the control system is as follows... Figure 1 As shown. The audio-visual platform source server receives external video and audio sources, which are processed by the IMB card main processor and then transmitted to the LED display screen. The main processor is a heterogeneous computing platform, including an FPGA for real-time video processing, encryption / decryption, and coordinate transformation; an ARM for system control and interaction; and a GPU for image rendering. The video signal processing path involves the source video input being decrypted, decoded, having its coordinate format converted, image optimized, and scaled via the IMB card, and then transmitted to the receiver card 12 in the LED display screen via the high-speed fiber optic communication interface 11b. The receiver card 12 then transmits the signal to the adapter board 4, and the adapter board 4 transmits it to the driver chip and each pixel LED bead through the interface on the LED module 3. The electrical interface side of the high-speed fiber optic module uses LVDS signals, which are converted from photoelectric signals and transmitted via fiber optics and Ethernet, supporting the TCP / IP protocol. The audio signal processing path involves digital audio input via a microphone or peripheral device, which is processed and decoded, then converted from analog to digital, and finally transmitted to external speakers or the built-in speakers of the LED screen. The control system in this invention integrates video processing, audio processing, fiber optic transmission, and system control functions. Its transmission capability is achieved through a built-in fiber optic module and main processor, thus eliminating the need for an additional independent transmission card. This integrated design reduces the number of devices, eliminates the need for separate transmission cards and decoders, and lowers wiring complexity. Furthermore, the IMB card integrates video processing and Android system operation functions, eliminating the need for an additional video processor and Android control card. This simplifies the overall system architecture, avoids multi-level data transmission, shortens signal delay, and reduces communication loss.

[0038] The control system in this invention is a comprehensive solution integrating LED display, multimedia processing, network communication, audio processing, and intelligent interaction. It achieves multi-module collaboration through the IMB control card 11, supporting multimedia content display, intelligent control, and environmental adaptation. The core workflow includes data input, processing, output, and human-computer interaction. Video signals are transmitted to the IMB control card 11 via interfaces such as USB, DVI, HDMI, and DP. The main processor employs a heterogeneous computing architecture to process the data. The FPGA (Field-Programmable Gate Array) performs high-speed parallel processing of video pixel-level calculations, including format conversion and decoding, point-by-point correction, scaling and splicing control, and image optimization. The ARM processor runs the Android system, handling human-computer interaction, network connectivity (HTTP / Wi-Fi / Bluetooth / Ethernet / Fiber optic), software APP, and OTA upgrades. The GPU (Graphics Processing Unit) is used for image processing and rendering, supporting 4K / 8K video decoding. Control signals from the projector, remote control, and APP are transmitted to the ARM via MQTT / Bluetooth / Wi-Fi, and then parsed to control the displayed content or system functions. After data is processed by the IMB control card 11, it is transmitted via the LVDS (Low Voltage Differential Signaling, supporting short-distance high-speed transmission) interface, photoelectric conversion by a high-speed fiber optic module, and then transmitted to the receiving card 12 of the LED display screen via the TCP / IP (Transmission Control Protocol / Internet Protocol) transmission protocol supporting fiber optics and Ethernet. The receiving card 12 is connected to the adapter board 4 via the LVDS interface 12a. The adapter board 4 is electrically connected to the LED module 3 via multiple female connectors 31, controlling the driver IC in the LED module 3 (lamp board). The lamp board driver ICs in each LED cabinet 2 communicate in cascade via the SPI interface, and the LED cabinets 2 communicate in cascade via connectors 5 containing the TCP / IP communication protocol, thereby driving each pixel to emit light. Optionally, one or more receiving cards 12 can be set up. Multiple receiving cards 12 communicate with each other via the TCP / IP protocol to receive data transmitted by the IMB control card 11. It is preferred to have 1-2 receiving cards 12 to reduce wiring. The modular design supports large-size splicing display, and each cabinet is driven independently, which is convenient for installation and maintenance. The driver IC precisely controls LED brightness via PWM (Pulse Width Modulation) to achieve high contrast and energy-saving display. Digital audio input via microphone or peripherals is processed, decoded, and converted from analog to digital by the audio DSP (Digital Signal Processing) chip before being transmitted to the power amplifier and speakers. The microphone array collects voice signals, converts them to digital signals via ADC (Analog-to-Digital Converter), performs noise reduction and echo cancellation by the audio DSP chip, and then controls the speaker output via the MCU. The audio module supports Dolby / DTS decoding for high-fidelity audio playback. The microphone array, combined with AI algorithms, enables far-field voice interaction, such as voice control of displayed content.The system receives streaming network data via 100BASE-T1 Ethernet and WiFi / Bluetooth, decodes and processes it, and outputs it to the display and audio modules. It reads video files from the storage chip via SPI / USB interface, supporting offline playback. The ARM processor parses Miracast and NEC infrared protocols, forwarding control commands to the display. An ambient light sensor collects real-time ambient brightness data and dynamically adjusts the LED display brightness to save energy; an infrared sensor detects the presence of a human, supporting touch functionality. Status sensors monitor power supply, temperature, and signal transmission status in real-time, sending security alarms via an encryption module in case of anomalies. Reserved expansion interfaces (such as MIPI_CSI, SPI) support external cameras, sensors, and other devices to meet customized needs.

[0039] The system features high integration and multi-functionality, eliminating the need for additional transmitter cards, video processors, Android control cards, and decoders. By integrating an LED display, audio module, and IMB card, it achieves a unified multimedia experience encompassing display, audio, and control. It supports multiple protocols including HDMI, DP, USB, LVDS, PCIe, WiFi, Bluetooth, and TCP / IP, and supports multi-modal interaction functions such as touch control, voice, screen projection, and infrared remote control. Low-dropout linear regulators (LDOs), DC-DC converters, and power management chips dynamically adjust the voltage of each module, reducing overall heat generation and power consumption. A modular architecture is employed, allowing independent expansion and customization of the LED enclosure, receiver card, IMB control card, and audio module. A heterogeneous computing architecture is used, with a real-time pixel processing FPGA, an ARM processor, and a GPU for image processing, working collaboratively to improve processing efficiency in complex scenarios. This system simplifies the sending card, video processor, and Android control card, and adopts a modular design for the LED display, IMB control card 11, and audio module, reducing system complexity and cost while improving data transmission stability and scalability. It is suitable for mid-to-high-end multimedia scenarios that require sound and light linkage and intelligent interaction, such as a home multimedia center that integrates TV, audio, and smart home control.

[0040] The overall appearance and structure of a high-density integrated LED display screen is as follows: Figure 2 As shown, the back of the display screen has a control box 1 and multiple LED cabinets 2, while the front has small-pitch LED modules 3 with surface-encapsulated potting compound. To improve the heat dissipation and mechanical performance of the display screen, multiple stripe structures 21 and multiple horizontal and side-locking structures 22 are set in the LED cabinets 2 to increase the heat dissipation area. The stripe structures 21 increase the heat dissipation area, and the side-locking structures 22 realize the mechanical interconnection between the cabinets. The control box 1 is fixed to the LED cabinets 2 with screws, and the multiple cabinets are fixedly connected with each other by screws and side locks.

[0041] like Figure 3As shown, the core components of control box 1 are the IMB control card 11 and the receiver card 12. Other components include a fan 13 for heat dissipation, a shielding cover 14, and a metal casing 15. The shielding cover 14 and the metal casing 15 provide both heat dissipation and electromagnetic shielding. The fan 13 and the shielding cover 14 are fixed to the metal casing 15 with screws. The IMB control card 11, receiver card 12, metal casing 15, and LED cabinet 2 are interconnected with screws. The main processor chip 11a on the IMB control card 11, responsible for data calculation and processing, is prone to heat accumulation. Heat dissipation is achieved through the shielding cover 14 and electromagnetic shielding, while the fan 13 provides air cooling. Furthermore, heat dissipation channels 15a are provided on the metal casing to facilitate rapid heat dissipation into the air. The IMB control card 11 is equipped with multiple high-speed fiber optic communication interfaces 11b and other communication interfaces for communication with the internal and external displays. The IMB control card 11 transmits data to the receiving card 12 via the TCP / IP protocol through multiple LVDS interfaces 12a and the high-speed fiber optic module communication interface 11b. The receiving card 12 then transmits data to the adapter board 4 via multiple LVDS interfaces 12a and the TCP / IP protocol. The LVDS interfaces 12a are only used for short-distance communication between control cards and do not support data transmission between multiple enclosures.

[0042] An LED display screen is composed of multiple LED cabinets 2 and modules spliced ​​together. Each LED cabinet 2 contains two or four LED modules 3. The LED modules 3 have a conventional structure, consisting of an LED light board (front LEDs, rear PCB control circuit traces), a driver chip, a housing, and a cover. The LED cabinets 2 are made of die-cast alloy or sheet metal, providing structural support and heat dissipation channels for the LED modules 3. In the spliced ​​LED cabinets 2, a control box 1 is installed in the middle. The core components for controlling the LED display screen, the IMB control card 11 and the receiver card 12, are integrated into the control box 1. Figure 4 As shown, the receiver card 12 in the control box transmits data to the adapter board 4 via multiple LVDS interfaces 12a and a TCP / IP protocol supporting fiber optics and Ethernet. The adapter board 4 is physically connected to the LED housing 2 and the LED module 3 via screws, electrically connected to the receiver card 12 via the LVDS interfaces 12a, and electrically connected to the driver chip on the LED light board via the female connector 31, driving each pixel to emit light. Mounting slots 23 and 24 are provided inside the housing for mounting the power supply 6 and the control box 1.

[0043] In addition to being secured to each LED cabinet 2 by the side locking structure 22 and screws, data is also transmitted through cascaded connectors 5. Connector 5 consists of paired connector interface 1 51 and connector interface 2 52, supporting the TCP / IP protocol, such as... Figure 5As shown, each LED module 3 in each enclosure is equipped with multiple female connectors 31 for connecting to the adapter board 4. After receiving data from the receiving card 12, the adapter board 4 transmits the data to the driver chip through the female connectors 31 and to each enclosure through the connector 5. Optionally, the power supply 6 is provided in each, every two, every four, or every eight LED enclosures 2, depending on its power rating. Optionally, the receiving card 12 is provided in each, every two, or every four enclosures, depending on its data load capacity. The receiving cards 12 communicate with each other via the TCP / IP interface protocol, or only one card is provided in the enclosure containing the control box 1.

[0044] High-density integration of LED displays primarily employs COB (chip on board) or integrated lamp-driver packaging technology, with pixel pitch between P0.1 and P1.2. Due to cost and production yield considerations, mini LEDs with a pitch between 0.5 and 1.2 are mainly used, with an optimal viewing distance of approximately 1.7-6.7 meters, which meets the common viewing distance requirements of home living rooms. Alternatively, micro LEDs with a pixel pitch between P0.05 and P0.5 require mass transfer packaging, resulting in higher costs and lower yields. The optimal viewing distance is 0.2-1.7 meters, which is too short, making them suitable only for consumer electronics such as mobile phones and computers, and not for home theaters and televisions.

[0045] The overall workflow of the LED display screen and intelligent control system for home theaters and television terminals in this invention is as follows: After the audio-visual platform source server transmits audio and video data to the 1MB control card 11, the main processor 11a in the 1MB control card 11 performs image processing, decoding, pixel-level calculation, and coordinate axis transformation, converting it into an RGB data stream. Then, it transmits the data to the receiving card 12 through the LVDS interface 12a, supporting the TCP / IP protocol of fiber optic and Ethernet. The receiving card 12 distributes the data to the adapter board 4. The adapter board 4 transmits the data to the LED module 3 and the driver chip through the female connector 31. On the other hand, the adapter board 4 transmits the data to the adapter board 4 in another LED cabinet 2 through the cascade connector 5 between LED cabinets 2, and then transmits it to the corresponding LED module 3 and driver chip.

[0046] The control system in this invention integrates video processing, audio processing, fiber optic transmission and system control functions. Its transmission, video processing and system operation capabilities are realized through the built-in fiber optic module and main processor, eliminating the need for independent transmission cards, decoders, frequency processors and Android control cards, simplifying the overall system architecture, avoiding multi-level data transmission, shortening signal delay and reducing communication loss.

[0047] The IMB control card 11 and receiver card 12 are highly integrated in the same control box 1, used to control the entire LED display screen. This simple structure, free of complex wiring, lowers the barrier to entry for industrial-grade LED displays in the civilian market, enabling their use in large-screen TVs and home theaters. Compared to traditional TVs, utilizing the splicing capability of LED modules 3, the size can be expanded both horizontally and vertically, achieving displays exceeding 100 inches. Multiple heat dissipation designs ensure the normal operation of chips with high data loads within the control card.

[0048] The I MB control card 11 integrates multiple functions, including wired and wireless networks, audio, and smart home control. The LED display integrates multiple sensors, which is conducive to receiving video sources from multiple channels and supports human-computer interaction functions such as touch, voice recognition, screen projection, and remote control.

[0049] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An intelligent control system for LED displays in home theaters and television terminals, characterized in that, Includes audio module, display control system, integrated media module, source server and power module; The source server receives external video and audio sources, which are then processed by the main processor of the integrated media module (IMB) card and transmitted to the LED display screen. The video signal is transmitted to the I MB control card (11) through interfaces such as USB, DVI, HDMI, and DP, and the data is processed using the heterogeneous computing architecture in the main processor; After the data is processed by the I MB control card (11), it is transmitted to the receiving card (12) of the LED display screen through the LVDS interface (12a), the photoelectric conversion of the high-speed fiber optic module, and the transmission protocol of TCP / IP supporting fiber optic and Ethernet. The receiving card (12) is connected to the adapter board (4) through the LVDS interface (12a). The adapter board (4) is electrically connected to the LED module (3) through multiple female connectors (31) to control the driver IC in the LED module (3). The LED board driver ICs in each LED box (2) communicate in cascade through the SPI interface. The LED boxes (2) communicate in cascade through the connector (5) containing the TCP / IP communication protocol, thereby driving each pixel to emit light.

2. The intelligent control system for the LED display screen of a home theater and television terminal according to claim 1, characterized in that, The I MB control card (11) includes a main processor chip (11a), which is a heterogeneous computing platform, including an FPGA for real-time video processing, encryption and decryption, coordinate transformation, an ARM for system control and interaction, and a GPU for image rendering.

3. The main processor chip (11a) of the LED display screen for home theaters and television terminals according to claim 2, characterized in that, The FPGA performs high-speed parallel processing of video pixel-level operations, including format conversion and decoding, point-by-point correction, scaling and stitching control, and image optimization; the ARM processor runs the Android system, handling human-computer interaction, network connectivity, software APP, and OTA upgrades; and the GPU is used for image processing and rendering, supporting 4K / 8K video decoding.

4. The intelligent control system for the LED display screen of a home theater and television terminal according to claim 1, characterized in that, The video signal processing path of the external video is as follows: after the source video is input, it is decrypted, decoded, coordinate format converted, image optimized and scaled by the I MB control card (11), and then transmitted to the receiving card (12) in the LED display screen through the high-speed optical fiber communication interface (11b) and LVDS interface (12a). The receiving card (12) transmits the signal to the adapter board (4), and then the adapter board (4) transmits the signal to the driver chip and each pixel LED bead through the interface on the LED module (3). The electrical interface side of the high-speed optical fiber module adopts LVDS signal, which is transmitted through optical fiber after photoelectric conversion and supports TCP / IP protocol.

5. The intelligent control system for the LED display screen of a home theater and television terminal according to claim 1, characterized in that, The audio signal processing path of the audio source is as follows: digital audio is input through a microphone or peripheral device, and after audio processing and decoding, analog-to-digital conversion is performed, and then the signal is transmitted to an external speaker or the built-in speaker of the LED screen.

6. An LED display screen for home theaters and television terminals, characterized in that, The LED display screen is used to execute the intelligent control system according to any one of claims 1-5. A plurality of LED cabinets (2) are arranged in a rectangular array behind the display screen. The LED cabinets (2) are provided with a side lock structure (22). The front of the display screen is a small-pitch LED module (3) with surface potting and encapsulation. A control box (1) is provided behind one of the LED cabinets (2). The control box (1) includes a metal casing (15), inside which are installed an 1 MB control card (11), a receiver card (12) and a shield (14), and a fan (13) is provided on one side of the metal casing (15).

7. The LED display screen for a home theater and television terminal according to claim 6, characterized in that, The IMB control card (11) is provided with a main processor chip (11a), and a number of high-speed optical fiber communication interfaces (11b) are provided on one side of the IMB control card (11). The receiver card (12) is provided with a number of LVDS interfaces (12a). A heat dissipation channel (15a) is provided on one side of the metal casing (15).

8. The LED display screen for a home theater and television terminal according to claim 6, characterized in that, The LED housing (2) is provided with several LED modules (3), and the LED module (3) consists of an LED light board, a driver chip, a housing and a mask; A connector plate (4) is provided on one side of the LED housing (2); The LED module (3) is provided with several rows of female interfaces (31).

9. The LED display screen for a home theater and television terminal according to claim 6, characterized in that, One of the LED boxes (2) is provided with a mounting slot 1 (23), and the control box (1) is installed in the mounting slot 1 (23). A mounting slot 2 (24) is provided on one side of the LED box (2), and a power supply (6) is provided in the mounting slot 2 (24).

10. The LED display screen of the home theater and television terminal according to claim 6, characterized in that, The side of the LED cabinet (2) is provided with a side lock structure (22), and adjacent LED cabinets (2) are connected by the side lock structure (22); The LED housing (2) is provided with connector interface one (51) and connector interface two (52) on both sides, and the two adjacent connector interfaces between the two LED housings (2) form a connector (5).

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