LIGHT EMITTING DEVICE HAVING DOPANTS IN A LIGHT EMITTING LAYER

摘要

A light emitting device comprises a pair of electrodes and an organic light emitting layer between the electrodes. The organic light emitting layer includes a host material, a first phosphorescent dopant, and a second dopant different from the first phosphorescent dopant. The amount of the second dopant is greater than the amount of the first dopant in the organic light emitting layer. The host material, the first phosphorescent dopant and the second dopant are mixed throughout the organic light emitting layer.