Multifunctional control system for light-emitting diode (LED) display screen

Abstract

The invention provides a multifunctional control system for a light-emitting diode (LED) display screen. The system comprises a transmitting control part on a computer and a receiving processing part on a screen body, wherein the transmitting control part on the computer comprises a high-definition multimedia interface (HDMI) video processing and transmitting module, an HDMI strobe, a microprogrammed control unit (MCU), a 100-megabyte network physical layer (PHY), an audio communication module and a monitoring output module which are connected with the HDMI video processing and transmitting module, a universal serial bus-recommended standard 232 (USB-RS232) conversion module which is connected with the MCU, and a network power supply module which is connected with a network transformer; the receiving processing part on the screen body comprises a 1000-megabyte network matrix, a network power receiving module, an HDMI video processing and receiving module, and a HDMI decoding module, a programmable control module, an infrared receiving module, an audio communication module, a monitoring input module and a network transformer module which are connected with the HDMI video processing and receiving module; the HDMI video processing and transmitting module and the HDMI video processing and receiving module transmit high-definition video and audio signals and infrared information, RS232 information, audio communication information and video monitoring information through network cables, and a network power supply function is supported.

Description

technical field [0001] The invention relates to the field of LED display screens, in particular to a multifunctional control system for LED display screens. Background technique [0002] At present, the high-definition digital movie standard has already entered the era of 3G-SDI (SMPTE 424M-2006 standard). The total bandwidth of 2.97Gbps not only supports 1920×1080p / 60Hz audio and video playback, but also is moving towards higher resolution and richer With the development of color (such as SMPTE 428-1K PGYQR 4096×2160 4:4:4 / X'Y'Z' / 12-bit24p), 1.3K digital movies, 2K2D or 3D digital movies, and 4K3D digital movies have appeared one after another. [0003] The performance and resolution of computer graphics cards are rapidly improving. At present, all mainstream graphics cards can at least reach a maximum resolution of 2048×1536, and the maximum resolution of the latest generation of graphics cards is as high as WQXGA (Wide Quad-XGA) 2560×1600. 4K2K (4096×2048) development. ...

AI Technical Summary

Problems solved by technology

However, when the video signal bandwidth exceeds 3Gbps-10Gbps, not only the dual-port Gigabit network transmission card is far from the target requirements, even the single-channel 3.125Gbps optical fiber communication card is helpless

Of course, the use of multi-channel dual-port Gigabit network transmission technology or multi-3.125Gbps optical fiber communication technology can partially solve this problem, but it undoubt...

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