I chose a MIPI interface, a 6-inch, 2k resolution LCD as my display screen. I found that the 6-inch screen can just cover the view of the VR box. In order to make the picture clear and smooth, I originally planned to use a screen with HDMI interface, but I didn't find a 6-inch screen with this interface, so I decided to use a screen with MIPI interface. As for the control chip, I planned to use STM32F469 to control at first, because I only learned how to use STM32 series chips, and it has its own MIPI-DSI interface. But later I found that controlling such a high resolution display beyond its capacity. So I started looking for better performance chips. However, I found that the high-performance chip only has an HDMI interface and no MIPI interface, so the screen I selected comes with an HDMI to MIPI module. As for the self-made module, I did find some open source materials, but this is not so easy for me, because I have never been exposed to the HDMI protocol. I want to finish the functions of this project first, so I don't want to spend time on it for the time being. And such a module is not very expensive, which is acceptable to me. So the problems of the self-made module should be put off until i finish the function