Electronics noob here, trying to bring an old automotive MD player/graphic equalizer (Sony MDX-700EQ). It came into my hands with all the wires cut off. No big deal, I thought. However I soon found out that this particular model came with an external inverter box, which I am missing. After opening up the MD player and examining it, I now know that two wires from the missing inverter go to the main board, and the remaining two - to the faceplate, which contains an LCD display and some buttons.
Google tells me that LCD displays use AC power, so it makes sense to me that it would require an inverter, as car electronics are ran off 12VDC. Am I on the right track?
In this case the LCD is driven by two LC75822E drivers. I have located its datasheet online, but Idk how to read it. The table says it requires a voltage anywhere from 3 to 6.5V, does that mean I could theoretically rig up a 12VDC to 5VAC inverter (if it's even a thing) and it should work?

Here's the datasheet for the LCD drivers: https://ksp-electronics.com/media/43160/lc75822e_w.pdf