| 摘要 |
A display or lighting element (20) is described allowing an enhanced emission intensity to be coupled out. The display or lighting element comprises a first substrate (22) whereon in sequence a bottom electrode (24), a light emitting structure (26) and a top electrode (30) is deposited and whereon a second substrate (34) is mounted on top of the top electrode (30), thereby providing a gap (32) between the second substrate (34) and the top electrode (30). By tuning the thickness of the gap (32), which is vacuum or filled with a material having a low refractive index, the emission intensity can be increased based on microcavity properties like wide angle interference and multiple beam interference. The enhanced emission intensity only has a limited wavelength and angle dependency. |
