Jordan Nolan had a goal and an assist. Justin Williams and Daniel Carcillo also scored goals for the Kings, who won their third straight game.
Scrivens, acquired in a trade from the Toronto Maple Leafs in June 2013, made his first start of the season as regular goalie Jonathan Quick was given a rest. Scrivens last shutout was on Feb. 18, a 3-0 victory at Florida as a member of the Maple Leafs.
Jacob Markstrom had 26 saves for Florida, which has lost four of its past five games.
Nolan put the Kings ahead 3-0 at 12:28 of the third with a tip-in off a pass from Jarret Stoll.
The Kings went ahead 2-0 at 14:55 of the second. The Panthers tried to get the puck out of their zone but it was intercepted by the Kings. Williams passed to Anze Kopitar near the goal line to the right of the net, then Kopitar pushed the puck back out to Williams. His wrist shot got past an outstretched Markstrom. Kopitar has five assists in six games.
Carcillo's goal gave the Kings a 1-0 lead at 8:46 of the second. Mike Richards passed from behind the net to Carcillo in the bottom of the right circle. His slap shot got past Markstrom. Richards has four assists in his last four games.
NOTES: Williams got his 500th NHL point with his second period goal. ... Kings'defenseman Jake Muzzin was a healthy scratch for the third straight game. ... The Panthers faced a backup goalie in Scrivens for the second straight game. On Friday, the Panthers scored six goals against Pittsburgh rookie Jeff Zatkoff in a 6-2 win. ... Markstrom faced the Kings for the first time.