LIGHT-EMITTING DEVICE

摘要

The invention relates to a light-emitting device comprising a light emissive layer (E) arranged between an at least semi-transparent first electrode layer (A; C) and an at least semi- reflective second electrode layer (C; A) . The at least semi-transparent first electrode layer is arranged between said light emissive layer and a further at least semi-reflective layer (R) . The further at least semi-reflective layer is separated from said at least semi-transparent first electrode layer by one or more light transparent intermediate layers. By controlling the thickness of the one or more light transparent intermediate layers which are located outside the electrically critical region of the light-emitting device, interference effects of the light- emitting device can be tuned without disturbing the delicate balance of the electrical properties of the device.