Samsung UE40ES7000U E-Manual page 320

Π3D Active Glasses from Samsung's
previous IR type 3D products and 3D
glass from other manufacturers are
not supported.
ΠWhen the TV is initially powered on,
it may take some time until the 3D
display is optimized.
ΠThe 3D Active Glasses may not work
properly if there is any other 3D
product or electronic devices turned
on near the glasses or TV. If there