CN212086326U

CN212086326U - LED television controller and LED television

Info

Publication number: CN212086326U
Application number: CN202020699706.2U
Authority: CN
Inventors: 吕严冰; 韦桂锋
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-04
Anticipated expiration: 2030-04-29

Abstract

The embodiment of the utility model discloses LED TV controller and applied this LED TV controller's LED TV. LED television controllers include, for example: an input source interface; the television main processing circuit is connected with the input source interface and comprises an audio intelligent processing circuit; the programmable logic device is connected with the television main processing circuit; the microcontroller is connected with the television main processing circuit and the programmable logic device; the video output interface is connected with the programmable logic device; and the audio interface is connected with the audio intelligent processing circuit. The embodiment of the utility model provides a can promote the broadcast effect of audio frequency, promote user experience degree and product competitiveness.

Description

LED television controller and LED television

Technical Field

The utility model relates to a show technical field, especially relate to a LED TV controller and a LED TV.

Background

At present, due to the advantages of high brightness, wide color gamut, long service life and the like of the LED, the spliced LED display screen is gradually used as a large-size LED television to be applied to application occasions such as conference rooms, commercial exhibition halls, home theaters and the like. However, the current input sources of LED televisions have some problems, such as noise in the audio data of the audio and video source. For these problems, the current LED tv usually does not process the problem, so the playing effect of the audio output by the LED tv is not good, and thus the requirements of the user cannot be met, and the user experience is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least part of the problems, the embodiments of the present invention provide an LED tv controller and an LED tv.

Specifically, the embodiment of the utility model provides a LED television controller, include: an input source interface; the television main processing circuit is connected with the input source interface and comprises an audio intelligent processing circuit; the programmable logic device is connected with the television main processing circuit; the microcontroller is connected with the television main processing circuit and the programmable logic device; the video output interface is connected with the programmable logic device; and the audio interface is connected with the audio intelligent processing circuit.

According to the technical scheme, the audio intelligent processing circuit is arranged in the television main processing circuit, so that artificial intelligent self-adaptive processing can be performed on audio data in input audio and video data, the audio playing effect is improved, and the user experience degree and the product competitiveness are improved.

The utility model discloses an in one embodiment, audio frequency intelligence processing circuit includes audio frequency intelligence processing chip and database memory, audio frequency intelligence processing chip connects the audio interface, database memory connects the chip is handled to audio frequency intelligence.

The utility model discloses an in one embodiment, TV main processing circuit still includes the audio and video chip of decoding, the audio and video chip of decoding connects the input source interface with audio frequency intelligence processing circuit with programmable logic device.

In an embodiment of the present invention, the LED tv controller further includes: the input source interfaces are in multiple paths, and the multiple paths of input source interfaces are respectively connected with the television main processing circuit.

In an embodiment of the present invention, the video output interface includes a multi-path network port; the LED television controller also comprises a plurality of Ethernet physical layer transceivers, the plurality of Ethernet physical layer transceivers are respectively connected with the programmable logic device, and the plurality of Ethernet physical layer transceivers are connected with the plurality of network ports in a one-to-one correspondence manner.

In an embodiment of the present invention, the video output interface is a multi-channel digital video interface; the LED television controller also comprises a plurality of paths of video coding chips, the plurality of paths of video coding chips are respectively connected with the programmable logic device, and the plurality of paths of video coding chips are connected with the plurality of paths of digital video interfaces in a one-to-one correspondence manner; the multi-channel video coding chip is also respectively connected with the microcontroller.

In an embodiment of the present invention, the LED tv controller further includes: the remote control interface is connected with the television main processing circuit; the first USB interface is connected with the television main processing circuit; the indicator light is connected with the microcontroller; the multi-path relays are respectively connected with the microcontroller; the Ethernet interface is connected with the microcontroller; the Bluetooth module is connected with the microcontroller; the key is connected with the microcontroller; and the second USB interface is connected with the microcontroller.

On the other hand, the embodiment of the utility model provides a LED TV, include: an LED television controller as described above; the display control card group is connected with the video output interface of the LED television controller, and comprises a plurality of cascaded display control cards; and the LED display screen is connected with the plurality of display control cards of the display control card group.

In an embodiment of the present invention, each of the display control cards is configured with a video input interface and a flat cable interface; the video input interface of a first-stage display control card in the display control card set is connected with the video output interface of the LED television controller, a rear-stage display control card in two adjacent stages of display control cards in the display control card set is connected with a front-stage display control card through the video input interface of the rear-stage display control card, and the flat cable interface of each display control card in the display control card set is connected with the LED display screen.

The utility model discloses an embodiment, the quantity of video output interface is a plurality of, correspondingly the quantity of display control card group is a plurality of, a plurality of display control card group one-to-one connect a plurality of video output interfaces.

The technical scheme can have the following advantages or beneficial effects: the audio intelligent processing circuit is arranged in the television main processing circuit, so that artificial intelligent self-adaptive processing can be performed on audio data in the input audio and video data, the audio and video playing effect is improved, and the user experience degree and the product competitiveness are improved; additionally, the embodiment of the utility model provides a provide and dispose TV main processing circuit's LED TV controller, solved current jumbo size LED concatenation screen and need add technical problem such as video processor or various TV boxes in order to use OSD menu front end, therefore can not need additionally to increase equipment to can reach reduce cost's purpose. Furthermore, the LED television controller provided by the embodiment of the utility model supports an OSD menu, thereby supporting better human-computer interaction; and may also support a single 4K output.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an LED television controller according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the audio intelligent processing circuit in fig. 1.

Fig. 3 is a schematic structural diagram of another LED tv controller according to the first embodiment of the present invention.

Fig. 4a is a schematic diagram of a specific hardware structure of an LED tv controller according to a second embodiment of the present invention.

Fig. 4b is a schematic diagram of a specific hardware structure of an LED tv controller according to a third embodiment of the present invention.

Fig. 5a is a pin schematic diagram of a part of a television main processing circuit in an LED television controller according to an embodiment of the present invention.

Fig. 5b is a schematic pin diagram of another part of the tv main processing circuit in the LED tv controller according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an LED television according to a fourth embodiment of the present invention.

Fig. 7 is a schematic structural diagram of another LED tv according to a fourth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

[ first embodiment ] A method for manufacturing a semiconductor device

As shown in fig. 1, a first embodiment of the present invention provides an LED tv controller 100. The LED television controller 100 includes, for example: input source interface 10, television main processing circuit 20, programmable logic device 30, microcontroller 40, video output interface 50, and audio interface 60. The television main processing circuit 20 is connected to the input source interface 10. The television main processing circuit 20 is also connected with a programmable logic device 30, a microcontroller 40 and an audio interface 60. Programmable logic device 30 is also connected to microcontroller 40 and video output interface 50.

The input source interface 10 is used for receiving externally input audio and video source signals. The input source interface 10 may be, for example, an interface capable of receiving video data and audio data, such as an HDMI interface, a DP interface, or other interfaces, and the like, which is not limited by the invention. Further, the number of the input source interfaces 10 may be plural, and the plural input source interfaces 10 are respectively selected from a part or all of the HDMI interface, the DVI interface, the DP interface, and the like. For example, the input source interface 10 is, for example, a three-way HDMI2.0 interface, and the three-way HDMI2.0 interface is respectively connected to the television main processing circuit 20 for providing audio and video signals to the television main processing circuit 20.

The television main processing circuit 20 is used for decoding, separating, intelligently processing and the like the audio and video source signals input by the input source 10. Specifically, the television main processing circuit 20 includes, for example, an audio smart processing circuit 21. The audio intelligent processing circuit 21 is mainly used for processing audio data in the audio/video signal based on artificial intelligent speech, such as audio data recognition, noise judgment, and denoising processing, and outputting the processed audio data through the audio interface 60, such as outputting to a sound device connected to the audio interface 60. Therefore, the audio data in the input audio and video can be processed in an artificial intelligence mode, the audio playing effect is improved, and the user experience degree and the product competitiveness are improved. Specifically, as shown in fig. 2, the audio smart processing circuit 21 includes an audio smart processing chip 211. The audio intelligent processing chip 211 is connected with the audio interface 60. The audio intelligent processing chip 211 mainly completes recognition and judgment, smooth denoising, deep learning and the like of input audio data. The audio intelligent processing chip 211 may be, for example, a Haisi Hi3559A/C series processor, etc., but may also be other similar artificial intelligence processors, which is not limited herein. As shown in fig. 2, the audio intelligent processing circuit 21 may further include a database memory 213. The database memory 213 is connected with the audio intelligent processing chip 211. The database memory 213 is, for example, a non-volatile memory, such as an EMMC (Embedded multimedia Card), on which a large amount of audio noise sample data included in a recording scene of a related audio file is stored, so that the audio intelligent processing chip 211 can identify, compare and determine the noise. Specifically, the audio intelligent processing chip 211 performs playing effect enhancement processing on the audio data transmitted by the programmable logic device 220, for example, performs sampling on the input audio data according to a noise sample database on the database memory 213, compares the sampled data with a noise sample to perform noise judgment, smooth denoising processing, and the like, and transmits the processed audio data to the audio interface 60 for output; when the intelligent audio processing chip 211 does not find the input audio data to have noise and other problems, no processing is performed. It should be noted here that the audio intelligent processing chip 211 performs artificial intelligence adaptive processing on the received audio data with playing effect, and the processing method and technology thereof may also adopt a mature artificial intelligence audio processing technology in the prior art, which is not described herein again.

The programmable logic device 30 is connected to the television main processing circuit 20 to obtain video data in the input source. The Programmable logic device 30 of the present embodiment is, for example, an FPGA (Field Programmable Gate Array) device, such as a K7-series FPGA chip of Xilinx corporation, for example, a K7160T FPGA chip, and in some other embodiments, an FPGA chip of Altera corporation may also be used.

The microcontroller 40 is connected to the television main processing circuit 20 and the programmable logic device 30. The microcontroller 40 of the present embodiment is an MCU (micro Controller unit), for example, a STM32F4 series MCU chip is used, and in some other embodiments, the cpu (central Processing unit) of the MCU is replaced by an arm (advanced RISC machine), for example, an RK3288 chip, which can be better than the control of the whole system. The microcontroller 40 is used for loading the program of the programmable logic device 30, communicating with other electrical components, and the like, for example, outputting control signals to the programmable logic device 30, the audio intelligent processing circuit 21 of the television main processing circuit 20, and the like.

The video output interface 50 is connected to the programmable logic device 30, which may be a digital video interface, an analog video interface, an ethernet interface, etc., but the present invention is not limited thereto.

The audio interface 60 is, for example, an RCA interface (commonly called a lotus socket, also called an AV interface) or a TRS (Tip-Ring-Sleeve) interface, and the present invention is not limited thereto.

Under the control of the microcontroller 40, the television main processing circuit 20 decodes and separates the audio and video data input through the input source interface 10 to obtain audio data and video data, then transmits the audio data to the audio intelligent processing circuit 21 to perform artificial intelligent processing on the audio data and output the processed audio data through the audio interface 60, and further transmits the video data to the programmable logic device 30 to perform image processing and output the processed video data to a later-stage device, such as an LED display screen, through the video output interface 50. Therefore, after the audio data are obtained through decoding, the audio data are subjected to self-adaptive processing based on an artificial intelligence technology, the audio playing effect is improved, and the product competitiveness and the customer experience degree are also improved.

Further, as shown in fig. 3, the television main processing circuit 20 may further include an audio/video decoding chip 22. The audio and video decoding chip 22 is connected with the input source interface 10, the audio intelligent processing circuit 21, the programmable logic device 30 and the microcontroller 40. For example, the audio/video decoding chip 22 is, for example, a television chip MSD6a938 introduced by a television chip manufacturer MStar, a television chip S905 of the company Amlogic may also be used in some other embodiments, and chips of other television manufacturers having an audio/video decoding function may also be used. Programmable logic device 30 is coupled to audio video decoding chip 22 to obtain video data from the input source. The microcontroller 40 is connected with the audio and video decoding chip 22 of the television main processing circuit 20, the audio intelligent processing circuit 21 and the programmable logic device 30.

The present embodiment provides an LED tv controller configured with a tv main processing circuit 20 to solve the problem that a video processor or various tv boxes are required to be added at the front end of the existing large-sized LED tiled screen to apply an OSD menu, so that additional equipment is not required, the purpose of reducing cost can be achieved, and better human-computer interaction can be supported.

[ second embodiment ]

As shown in fig. 4a, on the basis of the foregoing first embodiment, the LED tv controller 100 in the second embodiment of the present invention further includes, for example: remote control interface 11A, USB interface 12A, LED indicator light 41A, four-way relay 42A, hundred mega ethernet interface 43A, bluetooth module 44A, button 45A, and second USB interface (USB-FS interface) 46A.

The remote control interface 11A is connected to the television main processing circuit 20, and can be connected to a remote control device to perform a remote control function. The USB interface 12A is connected to the television main processing circuit 20 and can be used for connecting USB interface devices. The LED indicator lamp 41A is connected with the GPIO port of the microcontroller 40. The four-way relay 42A is respectively connected with 4 GPIO ports of the microcontroller 40. The hundred mega ethernet interface 43A is connected to the microcontroller 40, for example, the microcontroller 40 through an ethernet PHY chip. The bluetooth module 44A communicates with the microcontroller 40 through UART. Also connected to microcontroller 40 are buttons 45A and USB-FS interface 46A.

It should be noted that the image signal output interface 23A in the LED television controller of this embodiment is a V-By-One interface, which has the characteristics of simple interface, fast speed, few wires, and the like. In other embodiments, the image signal output interface 23A may also be an LVDS interface, and since the LVDS interface can implement point-to-point or point-to-multipoint connection, the LVDS interface has the characteristics of low power consumption, low bit error rate, low crosstalk, low radiation, and the like. Specifically, the audio signal output interface of the present embodiment is an I2S audio bus interface 26A.

In the present embodiment, the input source interface 10 includes, for example, three HDMI2.0 interfaces, and the three HDMI2.0 interfaces are respectively connected to the television main processing circuit 20, so as to provide the television main processing circuit 20 with audio and video signals. The video output interface 50 includes four digital video interfaces, such as four HDMI1.4 interfaces, and the four HDMI1.4 interfaces are respectively connected to the FPGA30A through four video encoding chips to receive the TMDS signals output by the FPGA30A, and the four video encoding chips are also connected to the microcontroller 40, such as the microcontroller 40 through I2C bus respectively. The video coding chip of this embodiment is, for example, ADV 7511. It should be noted that the four HDMI1.4 interfaces are also respectively connected to the microcontroller 40 through a serial bus, such as a UART bus.

In addition, as shown in fig. 4a, the microcontroller 40 may also be provided with some peripheral circuits, such as an SPI flash memory connected through an SPI bus, a temperature detection circuit TEMP, a voltage detection circuit Vol, a real-time clock RTC, a non-volatile memory such as EMMC and a volatile memory such as SDRAM, and an FPGA connected through a CFG bus and an FSMC bus. Furthermore, the FPGA is also connected to volatile memory such as DDR 3.

As mentioned above, the work flow of the LED tv controller 100 in this embodiment is, for example: an audio and video source input through the HDMI2.0 enters the television main processing circuit 20 to be decoded, separated and the like, the processed video data outputs a V-By-One standard signal (V-By-One is a digital interface standard developed specially for image transmission), and is transmitted to the FPGA to perform internal picture segmentation, so as to form a multi-path HDMI output, for example, when four paths of HDMI1.4 interfaces are output, four paths of HDMI signal outputs are formed, and 4 × 1080P is 4K, that is, the output of a 4K video source signal is supported. If output of an 8K video source signal is to be supported, sixteen HDMI1.4 signals, i.e., 16 × 1080P, are required for output. It should be noted that, because the V-By-One has the advantages of simple interface, fast speed, less wiring, etc., the standard HDMI2.0 interface input is converted into the V-By-One interface through the tv main processing circuit 20 in this embodiment. Moreover, in the scheme of the present embodiment, an audio/video decoding chip in the television main processing circuit 20 is used to complete the conversion. In addition, the FPGA30A stores data in the V-By-One format in the DDR3, fetches data from the corresponding space according to the output position of different HDMI signals, fetches the data from the DDR3 and stores the data in the RAM, reads data from the RAM according to the output timing, and outputs video image data at a resolution of 1920 × 1080@60 Hz. This achieves video splitting, resulting in multiple HDMI1.4 outputs. The microcontroller 40 and the television main processing circuit 20 communicate with each other through UART, which is a universal bidirectional communication interface at present, and is easy to develop, dock and integrate in an internal software module. The HDMI1.4 interface is output to the post-stage equipment, but in order to control the post-stage equipment, a UART interface is reserved for the post-stage equipment, and meanwhile, the cascade connection of the post-stage equipment can be supported, and a preset UART communication mode can be adopted when the post-stage equipment needs to be cascaded. Furthermore, since the television main processing circuit 20 belongs to the TV system, for example, an android 6.0 system is built in the television main processing circuit, which can support remote control keys and control modes such as external third party APK.

[ third embodiment ]

As shown in fig. 4b, on the basis of the first embodiment, the LED tv controller in the third embodiment of the present invention further includes: remote control interface 11B, USB interface 12B, LED indicator light 41B, four-way relay 42B, hundred mega Ethernet interface 43B, Bluetooth module 44B, button 44B and USB-FS interface 46B.

The remote control interface 11B is connected to the television main processing circuit 20, and performs a remote control function. The USB interface 12B is connected to the television main processing circuit 20, and can be used for connecting USB interface devices. The LED indicator lamp 41B is connected with the GPIO port of the microcontroller 40. The four-way relay 42B is respectively connected with 4 GPIO ports of the microcontroller 40. The hundred mega ethernet interface 43B is connected to the microcontroller 40, for example, the microcontroller 40 through an ethernet PHY chip. The bluetooth module 44B communicates with the microcontroller 40 through UART. Also connected to the microcontroller 40 are keys 45B, USB-FS interface 46B, temperature sensing circuit TEMP, voltage sensing circuit Vol, real time clock RTC, non-volatile memory such as EMMC and volatile memory such as SDRAM.

In the present embodiment, the input source interface 10 includes, for example, three HDMI2.0 interfaces, and the three HDMI2.0 interfaces are respectively connected to the television main processing circuit 20, so as to provide the television main processing circuit 20 with audio and video signals. The video output interface 50 includes sixteen network ports such as ethernet interface 1-ethernet interface 16, and the sixteen network ports are connected to the FPGA through sixteen ethernet physical layer transceivers, so as to implement output of 4K video source signals. The ethernet physical layer transceiver of the present embodiment is, for example, a PHY AR8033 chip.

Compared with the second embodiment, the embodiment changes the output of the rear-stage HDMI1.4 into the output of the ethernet interface 1 to the ethernet interface 16, so that the existing receiving card products can be compatible to carry out network port cascade to carry the large-size LED mosaic screen.

In addition, refer to fig. 5a and fig. 5b, which are schematic circuit connection diagrams of two parts in the television main processing circuit 20 in the LED television controller 100 according to an embodiment of the present invention.

[ fourth example ] A

Referring to fig. 6, an LED tv provided in a fourth embodiment of the present invention includes: LED TV controller 100, display control card group 300 and LED display screen 500. The LED television controller 100 may adopt, for example, the LED television controller 100 in the foregoing embodiment, which is provided with a video output interface. The display control card set 300 is connected to the video output interface, and the display control card set 300 includes a plurality of cascaded display control cards 301, 302,. 30N, where N is a positive integer. The LED display screen 500 is connected to the display control card set 300.

Specifically, as shown in fig. 7, the number of the display control card sets 300 is, for example, multiple, and correspondingly, the number of the video output interfaces of the LED television controller 100 is also multiple, and the multiple display control card sets 300 are respectively connected to the LED display screens 500. Further, the display control cards, e.g., 301, 302, …, 30N, in each display control card set 300 are configured with a video input interface 3011 and a flex cable interface 3012. The video input interface 3011 of the first-stage display control card 301 in each display control card set 300 is connected to the video output interface of the LED television controller 100, and the subsequent-stage display control card, such as 302, in the two adjacent stages of display control cards in the display control card set 300 is connected to the previous-stage display control card, such as 301, through its own video input interface 3011, thereby implementing cascade connection among the plurality of display control cards 301, 302, …, 30N. It should be noted that the LED display panel 500 typically includes a plurality of LED light panels with LED LEDs as display pixels, and the bus cable of each display control card in the display control card set 300 is connected to the LED light panels on the LED display panel 500, for example, a plurality of LED light panels in cascade.

In the embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices, and/or methods may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An LED television controller, comprising:

an input source interface;

the television main processing circuit is connected with the input source interface and comprises an audio intelligent processing circuit;

the programmable logic device is connected with the television main processing circuit;

the microcontroller is connected with the television main processing circuit and the programmable logic device;

the video output interface is connected with the programmable logic device; and

and the audio interface is connected with the audio intelligent processing circuit.

2. The LED television controller according to claim 1, wherein the audio intelligent processing circuit comprises an audio intelligent processing chip and a database memory, the audio intelligent processing chip is connected with the audio interface, and the database memory is connected with the audio intelligent processing chip.

3. The LED television controller of claim 1, wherein the television main processing circuit further comprises an audio/video decoding chip, the audio/video decoding chip being connected to the input source interface, the audio intelligent processing circuit and the programmable logic device.

4. The LED tv controller according to claim 1, wherein the input source interfaces are multiple paths, and the multiple paths of input source interfaces are respectively connected to the tv main processing circuit.

5. The LED television controller of claim 1, wherein the video output interface comprises a multi-way port; the LED television controller also comprises a plurality of Ethernet physical layer transceivers, the plurality of Ethernet physical layer transceivers are respectively connected with the programmable logic device, and the plurality of Ethernet physical layer transceivers are connected with the plurality of network ports in a one-to-one correspondence manner.

6. The LED television controller of claim 1, wherein the video output interface is a multi-channel digital video interface; the LED television controller also comprises a plurality of paths of video coding chips, the plurality of paths of video coding chips are respectively connected with the programmable logic device, and the plurality of paths of video coding chips are connected with the plurality of paths of digital video interfaces in a one-to-one correspondence manner; the multi-channel video coding chip is also respectively connected with the microcontroller.

7. The LED television controller of claim 1, comprising:

the remote control interface is connected with the television main processing circuit;

the first USB interface is connected with the television main processing circuit;

the indicator light is connected with the microcontroller;

the multi-path relays are respectively connected with the microcontroller;

the Ethernet interface is connected with the microcontroller;

the Bluetooth module is connected with the microcontroller;

the key is connected with the microcontroller; and

and the second USB interface is connected with the microcontroller.

8. An LED television, comprising:

the LED television controller of any one of claims 1 to 7;

the display control card group is connected with the video output interface of the LED television controller, and comprises a plurality of cascaded display control cards; and

and the LED display screen is connected with the plurality of display control cards of the display control card group.

9. The LED television of claim 8, wherein each display control card is configured with a video input interface and a flex cable interface; the video input interface of a first-stage display control card in the display control card set is connected with the video output interface of the LED television controller, a rear-stage display control card in two adjacent stages of display control cards in the display control card set is connected with a front-stage display control card through the video input interface of the rear-stage display control card, and the flat cable interface of each display control card in the display control card set is connected with the LED display screen.

10. The LED tv of claim 8, wherein the number of the video output interfaces is plural, and correspondingly, the number of the display control card sets is plural, and the plurality of display control card sets are connected to the plurality of video output interfaces in a one-to-one correspondence.