An organic light emitting device and manufacturing method thereof includes a substrate; a first electrode formed on the substrate; a second electrode formed on the first electrode; an light emitting member interposed between the first electrode and the second electrode; and a photonic crystal member disposed in proximity to the substrate. The invention provides methods to specifically advance or delay the phase of certain circadian rhythms in humans. The outcome may be a credit award, a multiplier, or any other award that provides a player with a benefit, either monetary, or in the context of game play.