The data transmission methods of LED display mainly include HDMI, DisplayPort (DP) and USB 2.0, each of which has its own characteristics and applicable scenarios.
HDMI is a fully digital audio and video interface that supports high-definition video and audio signal transmission from 1080p to 4K or even 8K resolution. It has the characteristics of high bandwidth and single-line transmission, and is suitable for occasions that require high-quality image and sound synchronous transmission. The HDMI interface is widely compatible with modern TVs, projectors and other devices, and supports hot plugging, which is easy to use.
DisplayPort (DP) is another high-definition transmission interface. Similar to HDMI, DP also supports high-resolution and high-refresh rate video transmission, and is constantly evolving in bandwidth and functions to meet higher-level display requirements. The DP interface is usually used in application scenarios that require higher bandwidth and professional graphics processing.
USB 2.0 is a high-speed data transmission interface with a transmission speed of up to 480Mb/s, which is suitable for the rapid transmission of large amounts of data. The USB 2.0 interface has CRC error detection and correction capabilities, supports hot plugging, and can connect multiple peripherals, which is suitable for scenarios that require real-time data updates.
In terms of long-distance transmission, fiber optic transmission is an effective solution. Since LED large-screen devices may be distributed in different geographical locations, fiber optic transmission equipment can provide stable and reliable long-distance data transmission services, which are suitable for display needs that require high definition and low latency.
Choosing the right transmission method depends on the specific application requirements, including factors such as transmission distance, bandwidth requirements, real-time performance, and device compatibility. The parallel transmission method is suitable for environments with short distances and high real-time requirements, while the serial method is suitable for long-distance transmission and scenarios with high anti-interference requirements. The Ethernet method is suitable for scenarios that require remote management and control.
