Add screen driver to Quectel SC66-E

I am tryin to add a new screen driver to my SC66-E which is based on Android kernel.
Do I have to download the AOSP, change the sources, build it and flash it ?
If so, where can I find the Android source used for SC66-E ? and what is the path to the folder that manages the Quectel drivers ?

If you want to bring up LCD screen, there is already LCD driver existing in AOSP.
If you want to develop on SC66-E, you need to download AOSP which contains Quectel SDK.
You can contact Local Sales or FAE for help in your region.