Hi @reynaldopu61867
Here's a [https://www.youtube.com/watch?v=EvXNYtlHoyU|video] that may help.
At 4:45 minutes into the video, the rear assembly housing the LCD screen can be seen being removed.
Here's the page of the service manual showing an exploded view of the [https://www.manualslib.com/manual/682079/Sony-Dsc-H7.html?page=19#manual|components] in the housing.
Search online for ''Sony DSC-H7 LCD screen'' to find suppliers that suit you best.