High-definition digital video interface refers to digital interface technology used to transmit high-definition video signals. They can transmit uncompressed audio and video data between devices to ensure a high-quality audio-visual experience. The following are several common high-definition digital video interfaces:
1.HDMI (High-Definition Multimedia Interface):
HDMI is a widely used fully digital video and audio interface that can simultaneously transmit uncompressed high-definition video and multi-channel audio signals using a single cable. It supports a variety of video formats, including SDTV, HDTV, and with the development of technology, HDMI 2.1 version even supports video transmission up to 4K and 8K resolution. The HDMI interface not only simplifies the connection, but also provides advanced features such as audio return and CEC (Consumer Electronics Control), making communication between devices more intelligent.
2. DisplayPort:
DisplayPort is a digital display interface standard originally developed by the VESA organization for connection between video sources and display devices. It supports the transmission of uncompressed video and audio signals. Like HDMI, DisplayPort has also gone through multiple versions, such as DisplayPort 1.2, 1.3, 1.4 and 2.0, each of which has improved bandwidth, resolution and functionality. A notable feature of DisplayPort is that it supports Multi-Stream Transport (MST), which means that multiple displays can be connected simultaneously through one interface.
3. HD-SDI (High Definition Serial Digital Interface):
HD-SDI is a professional high-definition digital video interface, mainly used in broadcasting and professional video production. It transmits uncompressed high-definition video signals, ensuring the high fidelity of the video. The HD-SDI interface is usually used to connect professional cameras, monitors, switchers and other equipment. It is characterized by fast transmission speed, stable signal quality and low latency, and is suitable for real-time video monitoring and production scenarios.
The emergence of these high-definition digital video interfaces has greatly improved the transmission quality and efficiency of video and audio signals, making the connection between devices easier, and also promoting the popularization and development of high-definition content.
