"View mode" refers to a setting or option that allows you to see or look at something without being able to make changes or interact with it. It is like a window through which you can observe something but not modify it. Full definition
When folding back, the front cover holds your device in landscape viewing mode. (gadgetsin.com)
The interface comes with customization options, auto - scrolling, page turning animations, and various view modes for your comfort. (androidauthority.com)
Additionally, if you need to hop into different viewing modes because the screen is too bright for your drive, you can switch to the night mode view from this menu screen. (pcworld.com)