DVI-I interface cable, full name Digital Visual Interface-Integrated, is a video interface cable that combines the features of DVI-A (analog signal interface) and DVI-D (digital signal interface), and is compatible with the transmission of both analog and digital signals. The following is a detailed explanation of the DVI-I interface cable:
1. Definition and features
Definition: DVI-I interface cable is an interface cable designed for digital display devices such as LCD monitors. It uses a 24-pin connector and can support the transmission of both analog and digital signals.
Features:
Compatibility: DVI-I interface cable can simultaneously connect VGA devices that support analog signals and DVI-D devices that support digital signals, increasing the flexibility of use.
High quality: Digital signals transmitted through the DVI-I interface cable are directly transmitted to the display device without analog-to-digital conversion, reducing signal loss and improving image quality.
2. Interface classification and pin definition
Interface classification:
DVI-A: can only transmit analog signals, does not support digital signals, and the interface pin definition is similar to the VGA interface.
DVI-D: Only transmits digital signals, does not support analog signals, and has only digital signal jacks on the interface, but no analog signal jacks.
DVI-I: Compatible with both analog and digital signals, with both digital and analog signal jacks on the interface.
Pin definition: The DVI-I interface cable includes 18 or 24 digital signal jacks (used to transmit uncompressed digital video data) and 5 analog signal jacks (corresponding to the red, green, and blue primary color signal lines, as well as horizontal synchronization and vertical synchronization signal lines) in the pin definition. In addition, there is a ground wire jack for connecting the ground wire.
3. Application scenarios
DVI-I interface cables are widely used in the connection of display devices such as computers, LCD monitors, and digital projectors. When a computer needs to be connected to a display that supports both analog and digital signals, the DVI-I interface cable is a good choice. In addition, in order to be compatible with traditional analog display devices, many graphics cards now use DVI-I interfaces.
4. Advantages and disadvantages
Advantages:
* Improved image quality and reduced signal loss.
* Increased flexibility of use, able to connect different types of display devices at the same time.
Disadvantages:
* Compared with newer generation interface standards such as HDMI, the DVI-I interface may be slightly insufficient in terms of functions and supported protocols.
In summary, the DVI-I interface cable is a powerful and compatible video interface cable, which plays an important role in the connection between computers and display devices.