The part you are talking about is the 'Display Name' The second image - Address Book - shows the person you are talking about in the list. I can see that you have edited the 'First' and 'Last' name fields because the information shows in the list under 'Name' / 'Naam' column. However, as the contact has not been selected, the information is not shown in the lower area. Suggest you open the Contact Edit window for that contact to see what is still contained in the 'Display' field.