Lindsay Lohan's Parents -- Persona Non Grata on OWN Show

Lindsay Lohan's OWN reality show producers want nothing to do with her parents, and TMZ has learned ... an executive decision was made to ban them from the show.

Michael and Dina Lohan will NOT film a single scene for the upcoming series. No one will even refer to DiLo's DWI arrest earlier this month -- according to production sources.

We're told producers were struggling a few weeks back with the show's direction ... and after intense debate decided to not include the "Lohan family circus."

We're told cameras did capture Michael and Lindsay together on 3 days -- but it's unclear whether that footage will make the final cut ... and there won't be any further shooting with daddy dearest.

Our sources say the show will stick to its original focus -- Lindsay's "comeback and recovery" ... which is what she agreed to from the get go.