The difference between optical HDMI cable and ordinary HDMI cable

Since the birth of the HDMI standard, copper-core HDMI cables have achieved effective transmission of audio and video signals due to their excellent performance. However, due to the limitations of the material performance of the copper core, silver-plated copper HDMI cables have appeared in the subsequent development process. Silver HDMI cable, and in the continuous change of the HDMI cable transmission carrier, the HDMI high-definition cable using optical fiber as a carrier suddenly became hot, especially after the recent release of the HDMI2.1 standard, the popularity of optical fiber HDMI cable has been high . So, in the whole process of transition from copper core HDMI cable to optical fiber HDMI cable, what are the advantages of optical fiber HDMI cable? What is the probability that copper cable core HDMI cable will be replaced in the future? We will analyze and compare from three aspects.

1. Optical HDMI cable volume and audio and video transmission advantages

With the increasing demand for audio and video transmission quality, there is a more urgent need for ultra-high-speed and ultra-long-distance optical wave transmission systems. Compared with the conventional copper-core HDMI signal transmission, the optical fiber HDMI signal transmission is distinguished by the ultra-fine fiber optic cable diameter and light weight, which is reduced by up to 60% year-on-year. The raw material is quartz, which saves metal materials and is conducive to the rational use of resources. In terms of audio and video transmission, the optical fiber HDMI cable is completely free of external electromagnetic interference, which can truly achieve lossless transmission, thereby ensuring high fidelity of the signal, especially for the transmission of audio information that requires extremely high material quality. The optical fiber HDMI cable has ultra-low  noise floor, with ultra-high signal-to-noise ratio, guaranteeing the ultimate purity of the sound. And the cinema-level audio-visual effects are here immediately.

At present, 4K TVs and projections have been popularized, and major domestic and foreign manufacturers have also developed 8K TVs, which is only one step away from the final popularization. Due to the bandwidth limitation of the copper core HDMI cable, it is destined not to play much role in the following 8K and HDMI2.1. Therefore, we have reason to believe that in the near future, optical HDMI cable will become a necessary wire for high-definition signal transmission.

2. 100m lossless transmission, optical HDMI cable has the advantage of length

Because the optical fiber HDMI high-definition cable uses optical fiber transmission media, the attenuation of long-distance signal transmission is basically negligible, the relay distance is long, and the longest transmission distance can reach more than 300m. For HIFI, projectors, and video surveillance systems, the long-distance transmission signals of traditional copper cables are easily distorted, and repeaters must be added, which directly leads to unavailability of the equipment or a worse experience. The optical fiber HDMI cable does not need to worry about the attenuation or distortion of the transmission signal when arranging these devices, and the system equipment can be arranged according to the actual needs of users.

The projectors that we are familiar with in daily life require a long transmission cable between the devices. The home wiring may require 5 to 15 meters, and the office is longer. If you use a traditional copper HDMI cable, a signal will appear Distortion is even a problem that cannot be displayed, and only complex signal relays can be used, and the high cost makes this application outweigh the cost. If you use an optical HDMI cable at this time, the problem will be solved.

3. Optical fiber HDMI line 18Gbps ultra-high speed bandwidth

Current games such as "Jedi Survival", "League of Legends", and "Glory of the King" all require high refresh rates and immersive audiovisual effects, which are very demanding for video transmission bandwidth. Nowadays 2K/4K display devices are becoming the first choice of gamers. To ensure the lossless transmission of 2K@60HZ and 4K@60Hz, optical HDMI cable is needed. The traditional HDMI copper cable is subject to signal attenuation, it is difficult to meet the high bandwidth transmission requirements of 18Gbps. The advantages of optical fiber HDMI cable are precisely the transmission frequency bandwidth, large communication capacity, strong insulation and anti-electromagnetic interference performance, which allows you to experience such a strong shock effect perfectly in 3D and 4K games without worrying about transmission bandwidth. Enjoy the multi-level smooth, colorful and colorful game screen.

Summary

In addition to the above three advantages, the optical fiber HDMI cable has many advantages that the copper-core HDMI cable cannot match, such as: strong corrosion resistance, strong radiation resistance, good windability, no electric spark, small leakage, strong confidentiality, etc. . It can even be used in special environments or military. Although the prices of optical fiber HDMI cables are currently high, as many manufacturers have invested in this field, the price has dropped a lot. As the price becomes cheaper, and the optical fiber HDMI cable has strong physical advantages, we have reason to believe that the optical fiber HDMI cable will replace the copper core HDMI cable in the future.