Refreshing list viewer data selectively in SAP ABAP

Only refreshing the selected or the modified rows is compatible or supported in EDIT mode but not in the display mode.

As you said, you are using the display mode so I doubt you can do anything. But in case you switch over to EDIT mode from DISPLAY mode, then you can go for and bind the function with the DATA_CHANGED event.

You can use the suggested approach and it should work for you. Hope it helps.