Get the User Display Name from People Picker Control in SharePoint

<SharePoint:PeopleEditor ID="pplControl" runat="server" Rows="1" PlaceButtonsUnderEntityEditor="false" Width="250px" SelectionSet="User" />

public string GetSPUserDisplayName(SPWeb objSPWeb, PeopleEditor pplControl)
{
   try
   {
      string userValue = string.Empty;
      if (pplControl.Entities.Count > 0)
      {
         PickerEntity pplAssigned = (PickerEntity)pplControl.Entities[0];
         SPUser webUser = objSPWeb.EnsureUser(pplAssigned.Key);
         userValue = webUser.Name;
      }
      return userValue;
   }
   catch (Exception ex)
   {
      // Log Exception
   }
}

string userDisName = GetSPUserDisplayName(web, peoplePickerControl);