The Kings' last game at the arena was the clinching Game 6 victory over the New Jersey Devils in June.
Fans arrived hours before the opening faceoff in anticipation of the raising of the championship banner and the awarding of championship rings to the players.
The previous banners and the retired jersey numbers were moved from the west wall and hanged from the rafters at the east end.
It created a new look for the arena, with the Lakers' 16 championship banners and their retired jersey numbers at one end of the building and the Kings' now at the opposite end. Now there is plenty of room for more championship banners and more retired jerseys.
The Kings took the ice with a new look, too. Center Anze Kopitar and defenseman Willie Mitchell, two key figures during their run to the Cup last spring, did not dress because of knee injuries. Kopitar has a sprained knee and Mitchell underwent offseason surgery.
The Blackhawks won the Stanley Cup two seasons ago.