Patent ID: 11925058
Assignee: AVALON HOLOGRAPHICS INC.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 17:
18. A method for fabricating a microcavity organic light emitting diode (MCOLED) comprising:
depositing a bottom electrode on a substrate;
depositing a filler layer on top of the bottom electrode;
depositing an intermediate electrode on top of the filler layer, the intermediate electrode comprising an overhang region and a connecting area, the connecting area electrically connecting each the intermediate electrode to the bottom electrode;
depositing an organic light emitting diode stack on the intermediate electrode;
depositing a top electrode on the organic light emitting diode stack; and
depositing a distributed Bragg reflector (DBR) on top of the top electrode, the DBR comprising alternate layers of dielectric materials and forming an optical microcavity with a resonance wavelength between the intermediate electrode and the DBR, the DBR having a high reflectivity with dielectric layer thicknesses chosen such that the optical path length of each layer in the DBR is one quarter of the resonance wavelength of the optical microcavity.