HDMI or VGA, What Is the Difference?

We need to understand some common terms used in professional hardware facilities. What is the difference between HDMI and VGA?

VGA is an analog signal, HDMI is a digital signal, which can transmit audio and video signals at the same time. The two types of transmitted signals are different. Will their display effects be different? Let’s take a look at the explanation of the terms of the two.

VGA (Video Graphics Array) is a video graphics array, which is a video transmission standard that uses analog signals introduced by IBM in 1987 with PS/2. (PS/2 originally means “Personal System 2”. “Personal System 2” is a personal computer introduced by IBM in 1987.) At that time, it had the advantages of high resolution, fast display speed, and rich colors. It has been widely used in the field of color displays.

The VGA standard is very outdated for today’s personal computer market. Even so, VGA is still a standard supported by most manufacturers. Before loading their own unique drivers, personal computers must support the VGA standard. For example, the startup screen of Microsoft Windows series products still uses VGA display mode, which also shows its importance and compatibility in the display standard.

21.5-inch Industrial Touch Panel PC Cordless 1920*1080 Design for Display (HV-C215B)

Features

● 1. Cordless mainboard design, industrial high-end configuration.
● 2. Rubber ring design on the backside for perfectly embedded mounting.
● 3. Dust-proof, front IP65 waterproof, and shock-proof.
● 4. 9V-36V wide voltage, 6xCOM optional, 3 Pin Phoenix terminal.
● 5. Aluminum alloy shell, fanless design, 7×24 continuous operation.

立即购买

HDMI interface is a high-definition multimedia interface, the English name: High Definition Multimedia Interface. HDMI is a digital video/audio interface technology. It is a dedicated digital interface suitable for image transmission, which can transmit audio and video signals at the same time. The maximum data transmission speed is 5Gbps. In short, HDMI is connected to a monitor or TV, used to receive the HDMI output signal on the graphics card.

I believe that many friends will be very tired after reading so many texts to introduce these two kinds of output. Below, we will compare the difference between HDMI and VGA with an example diagram.

In the industrial control industry, under normal circumstances, the display resolution is relatively not very high-definition. It is sufficient to simulate the information output with VAG. Regarding cables, VGA cables are much cheaper than HDMI cables. In addition, on the interface, the VGA interface is equipped with double screws, and the signal output in the industrial field is much more stable than that of HDMI.

Categories