Researchers discovered that a 4:3 aspect ratio screen doubles efficiency.

Let's look at the same image displayed in different aspect ratios:

This is the 16:9 image display effect. It looks very comfortable, and this is the ratio I usually watch in movies. The horizontal field of view is very rich.

This is the image after we adjusted the image to 4:3. Close-up details are much more obvious, the horizontal field of view is weakened considerably, and the vertical visual experience is enhanced. 

This is why many industrial and medical customers still use 4:3 aspect ratio displays. I've included a few examples:

We can clearly see that industry customers want data presentation and control functions. They need to display details + parameters (tables, graphs, etc.) + operation buttons. Vertical display is beneficial for viewing and operation. The flow from top to bottom, after viewing the data, and then operating the system, is more in line with practical applications. Human vision is better suited for "vertical reading," focusing more on browsing information vertically rather than watching a movie horizontally. In this case, a 4:3 aspect ratio display becomes very suitable. We specialize in differentiated display and touch applications, particularly in industries like industrial and medical. 4:3 aspect ratio displays are standard on our products. You can also see the dimensions of our standard 4:3 displays here:

Brightness, interfaces, operating temperature, and lifespan are all customizable. If you use original equipment manufacturer (OEM) screens, we offer a price advantage and can also provide pre-installed touchscreens. If you have any needs for 4:3 aspect ratio displays, please contact us!