High-performance OLED microdisplays made with multi-stack OLED formulations on CMOS backplanes

John Hamer; Marina Kondakova; Jeffrey Spindler; Robert Cupello; Suzannah Hamer; Michael Andre; Scott McClurg; Anatole Pleten; Bruno Primerano; David Scott; George Scherer; Scott Stickel

doi:10.1117/12.2569848

20 August 2020 High-performance OLED microdisplays made with multi-stack OLED formulations on CMOS backplanes

John Hamer, Marina Kondakova, Jeffrey Spindler, Robert Cupello, Suzannah Hamer, Michael Andre, Scott McClurg, Anatole Pleten, Bruno Primerano, David Scott, George Scherer, Scott Stickel

Author Affiliations +

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 114730F (2020) https://doi.org/10.1117/12.2569848
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

High-performance OLED microdisplays on CMOS backplanes have been developed using multi-stack white OLED architectures for higher brightness and longer lifetime – the expected benefits from stacked architectures. Unlike OLED lighting, which is bottom emission, the top-emitting OLED on the silicon backplane has a Fabry–Pérot parallel plate microcavity. The combination of the multi-stack approach and the cavity provides additional degrees of design freedom which can be used to optimize the interaction between the OLED formulation and optics of the device. This combination allows reduced power, balanced sub-pixel currents, and increased color gamut. Examples are shown of full color microdisplays made with 3, 4, and 5 stacks that are capable of 5,000 cd/m² peak luminance with an OLED power consumption for normal video of approximately 150-175mW per square cm of active area. We also show examples of low persistence displays operating at 10% duty cycles with peak luminance of 10,000 cd/m² and power consumption with normal video of less than 50 mW per square cm of active area. The broad toolkit demonstrated here enables the design optimization of multi-stack OLED microdisplays for many different product requirements spanning AR, VR and other near-eye applications.

Conference Presentation

Citation Download Citation

John Hamer, Marina Kondakova, Jeffrey Spindler, Robert Cupello, Suzannah Hamer, Michael Andre, Scott McClurg, Anatole Pleten, Bruno Primerano, David Scott, George Scherer, and Scott Stickel "High-performance OLED microdisplays made with multi-stack OLED formulations on CMOS backplanes", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 114730F (20 August 2020); https://doi.org/10.1117/12.2569848

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