Interview with Dr. Dipak Chowdhury

OLEDs World Summit 2015 features Dr. Dipak Chowdhury, Division VP and Program Director OLED Lighting, Emerging Innovation Group at Corning Incorporated.  Dr. Chowdhury has over 20 years of experience working as a researcher at Corning where his responsible for bringing flexible glass application in the OLED lighting. Recent Smithers Apex sat down with Dr. Chowdhury to learn more about his latest research and presentation at the OLEDs World Summit.


Smithers Apex: How have you seen the lighting industry change during your tenure?

Dr. Dipak Chowdhury: Technology in lighting industry has not changed significantly for about half a century, until Solid-State Lighting (SSL) technology was introduced about a decade ago. SSL technology (LED) was driven by need to preserve energy and reduce total cost of ownership. We believe OLED lighting is the next phase of this innovation cycle after LED lighting.


Smithers Apex: What are the current challenges you see facing the OLED lighting industry?

 Dr. Dipak Chowdhury: The current challenge for OLED lighting adoption is cost which can be reduced with a low cost integrated substrate that also  provides high light extraction efficiency, as already outlined by Department of Energy analysis.Corning’s 160 years of materials science expertise has helped the company develop a low cost, highly efficient integrated substrate which will enable one of the key attributes of OLED lighting panels – conformability. Conformable panels that are low cost and highly efficient in extracting light from the OLED structures will enable possibilities that designers can now only imagine. These thin, lightweight, low glare, and low heat generating panels are most amenable to architectural integration (building materials and furniture), opening a completely new product and application space. The automotive industry is also planning (considering) to use these same attributes for their internal and external lighting applications in the near future.


Smithers Apex: Can you give us any details about your latest research projects?

Dr. Dipak Chowdhury: Based on our flexible 100 mm thick Corning® Willow® Glass, we developed an integrated substrate that enables 2x (40%) light extraction while providing the best possible transparent barrier for long lifetime OLED lighting panels. Because of the flexible nature of Willow Glass, we are able to make this integrated substrate for panel makers in a roll-to-roll process, significantly lowering manufacturing cost. We believe this efficient and low-cost integrated substrate will reduce the panel cost and drive market adoption for OLED lighting faster than today’s analysts expect.