OLED microcavity design and optimization method
AssigneeAvalon Holographics Inc.
InventorsJordan Peckham, Jennifer Campbell, Jiaqi Cheng
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Abstract
Control of the emission characteristics of a light source in a light field display poses a significant benefit in the resulting 3D display quality for current and future technologies. A design system for microcavity OLEDs of any wavelength is detailed, which combines theoretical background with FDTD optimizations, permitting microcavity design of any OLED configuration. The resulting output profiles for microcavity OLEDs designed and fabricated with this method are compared to standard OLEDs and provide a reduction in spectral bandwidth, and a decrease in angular output.
Claims11
A method of obtaining fabrication specifications and fabricating a microcavity OLED tuned to emit a specified wavelength of light, the microcavity OLED comprising material layers including microcavity layers and reflective layers, wherein said microcavity layers and reflective layers are configured to provide a cathode and an anode with organic layers disposed there between, an optional filler layer and a Distributed Bragg Reflector (DBR) of the microcavity OLED, the method comprising the computer-implemented steps of:
- calculating optical path length and mirror reflectance approximations for the cathode and DBR for a given set of microcavity OLED emission characteristics;
- applying a FDTD simulation to determine mirror penetration depths required for the microcavity OLED to emit the specified wavelength of light using the optical path length and mirror reflectance approximations;
- applying a FDTD simulation to parameterize one or more of the material layers to be used to form the microcavity layers;
- and
- using the results of the FDTD simulation to parameterize one or more of the material layers to determine the optimized thicknesses for the one or more materials layers and thereby provide fabrication specifications for the microcavity OLED.
Dependencies are inferred from the claim text.