Hi,
Not sure if this is all correct, but don't think our current or recent notebooks have used CCFL screens, so would not expect they would use inverters either and assuming they are using something else like LEDs to light the screen now rather than CCFL, but not very sure about all the details.
Anyway, it's been a long time since I've seen a notebook screen using a separate inverter board, so not surprised that you don't see a separate inverter board , but what happened to it or where it is located if it is still around, not able to say.
Below are some third party articles about CCFL screens if you have the interest.
You may want to talk to more people or get more feedback from others.
https://computer.howstuffworks.com/question580.htm
http://www.laptoprepair101.com/replace-laptop-backlight-ccfl-lamp/