Various interfaces on the display

If you are a friend who has just started buying monitors, you can take a look at the most common monitors Interface Introduction. Combined with the devices you own or plan to buy, you can be more secure when buying monitors.

What interfaces are usually on the display?

At present, the new monitors are HDMI, DP, usb-a, usb-c, 3.5mm and power supply Interface , VGA interface, DVI interface and other old school interfaces rarely appear on today's monitors.

Like USB protocol, HDMI Interface There are also different protocols such as hdmi1.1 / 1.2, hdmi1.3, hdmi1.4, hdmi2.0 and hdmi2.1.

The HDMI interface equipped with newer displays is generally above the level of hdmi1.4 protocol. Hdmi1.4 supports 3840x2160p / 30Hz or 4096 of 10.2gbps bandwidth at most × 2160p / 24Hz video specification.

In addition, hdmi2.0 adds 4K / 60Hz video transmission with 18gbps bandwidth, and the latest hdmi2.1 adds 10K / 120Hz video transmission with 48Gbps bandwidth.

DP Interface Since its birth in 2006, it has also evolved 7 generations of update iterations. In 2009, dp1.2 supports 21.6gbps dci-4k (4096x2160) 60Hz video.

Dp1.3 supports 4K (3840x2160) 120Hz, 5K (5120x2880) 60Hz and 8K (7680x4320) 30Hz, and dp1.4 supports 8K level (7680x4320) 60Hz.

The latest dp2.0 is based on the previous generation and supports full-color 4:4:4 resolution, including 30 bits per pixel (BPP) and hdr-10.

The type-C interface is not equivalent to the USB3.0 interface.

Type-C Interface USB3.0 is an interface form and an external physical form. USB3.0 is a transmission protocol and an internal transmission protocol. For example, the type-C interface on many mobile phones still only supports the USB2.0 protocol.

First, let's talk about the most common protocol of USB. It has been 24 years since usb1.0 was published in 1996.

Among the iterations of so many versions, the most common is that USB2.0, USB3.0, usb3.1 and USB2.0 support the transmission speed of 480mbps (now known as hi speed, about 57mb / s).

USB3.0 supports 5Gbps transmission, usb3.1 goes to 10Gbps, and the power supply capacity reaches 100W. It is a fast charging interface. In fact, usb3.1 is divided into GEN1 and Gen2. The speed is slightly different, so I don't talk here.

With so many interfaces, why introduce the transmission speed?

In addition to the computer output terminal, the display terminal such as the display and the wire connecting the computer to the display must meet the corresponding bandwidth and video specifications to ensure that you have a complete use experience.

Since the release of usb-c specification in 2014, many Android mobile phones, laptops, desktops, monitors and even game consoles have begun to use this specification Interface 。

In terms of transmission speed, in addition to the most common USB2.0 and 3.0 mentioned above, the latest usb4.0 supporting 40Gbps large bandwidth and Lei 3 protocol with the same 40Gbps bandwidth can also be integrated into the type-C interface.

In addition to transmitting files and audio and video with large bandwidth, it also supports charging power of up to 100W (20V / 5A), which has the characteristics of small volume and plug-in of front and back sides.

For the display, the most common are several interfaces. In high-end or positioning productivity and commercial displays, it is also equipped with a full-featured type-C interface.

Whether it is to promote Desktop Wireless or improve the productivity of laptops and iPads, the interface is powerful and small.