How to Send Video from a Raspberry Pi (HDMI) to 20 pin LVDS
Raspberry Pi uses DSI protocol for LCD displays, which your LCDs don't seem to support.

While making a controller board is possible, it's definitely not an easy project. Not only you will have to interface your LCDs properly, but you'll also have to decode the DSI commands Raspberry Pi sends. HDMI is even more complex to decode and process.

If your goal is to play with the LCDs, you could try to follow the datasheet and see if you can do something simple such as filling all pixels with a given color and see how that goes. If your goal is to get a display for your Pi, just buy one.