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 undoubtedly increases research and development expenses, user costs and wiring construction difficulties, and also affects display quality and reduces reliability. not optimal

It can be said that the current LED display control system, especially the short-range dual-port Gigabit network control system, has lagged behind the development of video and communication technology, and cannot meet the higher requirements of the market and users

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