By PURPLELEC | 20 August 2024 | 0 Comments
What are the types of computer monitor connectors?
Computer monitors have a variety of connector (interface) types to suit different connection requirements and device compatibility. Here are some common monitor connector types:
1. VGA (Video Graphics Array) interface:
Type: Analog signal interface.
Features: Uses a 15-pin D-type interface, supports RGB transmission, and uses the I²C bus as a transmission channel for control signals. The VGA interface was once the mainstream interface in the CRT monitor era, but because it transmits analog signals, the picture quality is relatively poor, and it is now gradually replaced by a digital interface. However, the use of VGA interfaces can still be seen on some old devices.
2. DVI (Digital Visual Interface) interface:
Type: Digital video interface.
Features: Designed to transmit digital video signals, it uses the TMDS (Transition Minimized Differential Signaling) standard. The DVI interface has two main standards, each supporting different signal types: the DVI-A interface is compatible with VGA, but only supports video signals; DVI-D and DVI-I support digital signals, and the latter is also compatible with analog signals. The DVI interface does not support audio transmission.
3. HDMI (High-Definition Multimedia Interface) interface:
Type: High-definition multimedia interface.
Features: Supports synchronous transmission of audio and video signals, and can support up to 4K resolution and 3D visual effects. HDMI interface is widely used in TVs, monitors, projectors, game consoles and other devices. Due to its convenient audio and video integration, it has become the preferred interface for home entertainment devices.
4. DP (DisplayPort) interface:
Type: High-definition digital display interface.
Features: Supports the transmission of high-resolution video and audio signals. The DP interface has a high bandwidth since the first generation. The resolution and refresh rate supported by the DP 1.2, 1.3, 1.4 and other versions on the market are getting higher and higher. The latest DP 1.4 even supports 8K resolution. DP interface is more common in professional graphic design and high-end display devices.
5. USB-C interface:
Type: A USB standard connector.
Features: Supports multiple protocols, including Thunderbolt 3/4, USB 3.1/3.2, etc., which can be used to connect monitors and transmit data, video and power. With the popularity of devices such as laptops, USB-C interfaces have also begun to be used as one of the interfaces for connecting monitors.
6. Thunderbolt interface:
Type: Interface technology based on PCI Express and DisplayPort protocols.
Features: Combines multiple functions such as data transmission, video transmission and power supply in one. Thunderbolt interface is more common in high-end laptops and monitors.
Each connector type has its specific application scenarios and advantages and disadvantages. When choosing, users should decide based on their own equipment and usage needs. For example, for professional uses that require high-resolution and high-quality output, DP or HDMI interfaces may be preferred; while for old devices, VGA or DVI interfaces may also be required. In addition, with the continuous development of technology, new connector types are constantly emerging. Users should pay attention to industry trends in order to keep abreast of and choose the connector type that best suits their needs.
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