How do I split my 800x480 5-inch screen into 2 parts

Question

I am building a stand-alone VR headset using Raspberry Pi 3 model b. I am having a problem with splitting the screen as we see on our phone. I am still learning Python so I

Answer 1

Your problem is not splitting a screen, but to display an image on the screen. So you need a library to do that. In your example you are using OpenCV. This is usually a bad choice and only usefull for some simple debugging. You need a proper GUI library.

Here you have a gazillion of options. If you are into games, I would look into moderngl and moderngl-window. This is based on PySide2, and as far as I have seen Raspberry Pi now supports this.