What are the advantages and disadvantages of DVI interface?

Advantages of DVI interface:

High quality image transfer:

Digital signal transmission: DVI transmission is a digital signal, compared with analog signals, digital signals in the transmission process is not easy to be disturbed, signal loss is small, to ensure the clarity of the image and detail expression. Avoid the image distortion, color deviation, dragging and other problems that may occur in analog signal transmission, so that the picture is more clear, sharp and colorful.

High-resolution support: In the early days, DVI interface can better support high-resolution display, for example, it can meet the high-definition resolution needs of 1080p, which is an important advantage for users who pursue high image quality, and is suitable for graphic design, video editing, games and other application scenarios with high image quality requirements.

Fast transmission speed: digital image information does not need to go through the tedious digital-analog-digital conversion process, directly from the signal source to the display device, which greatly saves time, effectively eliminates the delay and dragging phenomenon caused by the conversion process, making the real-time and smooth picture better.

Good compatibility: DVI interface has good compatibility to a certain extent, and can be converted with other interfaces such as VGA through adapters or conversion cables, which is convenient for users to connect between different devices.

Relatively low cost: During its popular period, the manufacturing cost of DVI cables and interfaces was relatively low, which made it a high price/performance ratio in the market and a more economical choice for ordinary users and some cost-sensitive projects.

Disadvantages of DVI interface:

Wide range of interfaces: DVI interfaces exist in A variety of specifications, such as DVI-A (analog signals), DVI-D (pure digital signals), DVI-I (compatible with digital and analog signals), as well as single-link and dual-link versions. This makes the user easy to be confused when choosing and using, and needs to be matched according to the specific requirements of the equipment, increasing the complexity of use and the difficulty of purchase.

Does not support audio transmission: DVI interface can only transmit video signals, cannot transmit audio signals at the same time. In some scenarios that require audio output, users also need to connect additional audio cables, increasing the complexity of wiring and the cost of device connection.

Hot swap problem: The early DVI interface does not support hot swap. You need to power off the device before inserting or removing the cable. Otherwise, the circuit may be burned out or the interface may be damaged, which brings inconvenience to users.

Limited transmission distance: The effective transmission distance of DVI cable is relatively short, generally within 8 meters, more than this distance may appear signal attenuation, distortion and other problems, limiting its application in some large display scenes or long-distance transmission needs.

Be phased out: With the continuous development of technology, the emergence of new interfaces such as HDMI and DisplayPort, which are superior to DVI interface in function and performance, and can support higher resolution, refresh rate, audio transmission and more functional characteristics, so DVI interface is gradually eliminated by the market. There may be compatibility and maintenance issues in the future.