OLED R&D Challenges

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Challenges in OLED Research and Development

OLEDs are based on organic (carbon-based) materials. Unlike LEDs, which are small point sources, OLEDs are made in sheets that provide a diffuse-area light source. While developing rapidly, OLED technology is less mature than LED technology, whose rapid advancement has created a moving target for OLED products in terms of lighting performance and pricing. Still, OLED manufacturers are optimistic that with a few key breakthroughs, OLEDs will offer a value proposition complementary with LED lighting approaches.

Key Challenges

Challenges in OLED Research and Development: Emitters
View the video about challenges surrounding emitters in OLED research and development.
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Challenges in OLED Research and Development: Light Extraction
View the video about light extraction as a challenge in OLED research and development.
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Challenges in OLED Research and Development: Solution-Based Materials
View the video about challenges surrounding solution-based materials in OLED research and development.
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Innovations are still needed on multiple fronts to increase the efficiency, lifetime, and light output of OLED devices. The development of device architectures and materials systems (particularly blue) that allow for improved stability and efficiency, and methods to extract the light generated by the OLED, remain key challenges.

In addition to increasing the performance of devices, OLED costs need to be simultaneously reduced. Manufacturing technology developments and infrastructure investments will be essential to enable price reductions through improvements in throughput and yield. By improving the yield (panel-to-panel color, brightness consistency) and reliability (premature failure rate) through improved manufacturing processes, costs could be lowered considerably. Another possible route to decreasing production costs is the development of roll-to-roll manufacturing capabilities using printing deposition processes, which may allow for high materials usage efficiency and throughput. What’s more, roll-to-roll manufacturing is well-suited for processing on flexible substrates, and a key differentiating feature of OLEDs is their ability to operate as flexible or conformable devices.

Leveraging the flexibility and other distinctive qualities of OLEDs—e.g., thin, lightweight, large-area, diffuse light source—to create novel luminaires is another key challenge. The purpose of such luminaire concepts is to spur the adoption of OLEDs, promoting consumer interest and familiarity with the technology and generating revenue for continued R&D investment.

  • Learn more about DOE-funded OLED R&D projects
  • Review DOE OLED studies that offer insight on the performance of today’s OLED lighting products and the technology improvements needed for commercial viability. 
  • Find out about OLED testing opportunities to accelerate advances in OLED technology

Industry Input Guides SSL R&D Agenda

The DOE SSL R&D Program is guided by the SSL R&D Opportunities. All funding opportunity announcements (FOAs) and project selections align with this document, which is updated annually in collaboration with industry partners.