Sherwin I. Seligsohn - - , Founder and Chairman of the Board of Directors

Sherwin I. Seligsohn is our Founder and has been the Chairman of our Board of Directors since June 1995. He also served as our Chief Executive Officer from June 1995 through December 2007, and as our President from June 1995 through May 1996. Mr. Seligsohn serves as the sole Director, President and Secretary of American Biomimetics Corporation, International Multi-Media Corporation, and Wireless Unified Network Systems Corporation. He was also previously the Chairman of the Board of Directors, President and Chief Executive Officer of NanoFlex Power Corporation (formally known as Global Photonic Energy Corporation) (NanoFlex) since its inception until April 2012, when he resigned from his positions at NanoFlex. Since that time, the only relationship Mr. Seligsohn has had with NanoFlex is as a shareholder and option holder. From June 1990 to October 1991, Mr. Seligsohn was Chairman Emeritus of InterDigital Communications, Inc. (InterDigital), formerly International Mobile Machines Corporation. He founded InterDigital and from August 1972 to June 1990 served as its Chairman of the Board of Directors. Mr. Seligsohn is a member of the Industrial Advisory Board of the Princeton Institute for the Science and Technology of Materials (PRISM) at Princeton.

Steven V. Abramson - - , President, Chief Executive Officer and Director

Mr. Abramson is President and Chief Executive Officer of Universal Display Corporation and has been a member of its Board of Directors since 1996. Universal Display Corporation invented and commercialized energy-efficient phosphorescent OLED technology for a wide range of products including cell phone displays, TVs and lighting. After seventeen years of tenacious development and spending over $250M, Universal Display Corporation is finally seeing significant revenue and earnings growth and at the cusp of broad market penetration to bring their beautiful, crisp, energy efficient colors to smartphones, TVs, new form factors and energy-efficiency to lighting.

Steve has spent most of his career being involved in the creation and growth of new technologies such as digital cellular radio in the 1980s and fostering the development of sustainable environmental technologies in the first half of the 1990s.

Steve received his J.D. from Temple University in Philadelphia, Pennsylvania (1979), his M.A. in International Relations and Philosophy of Science from Ohio State University in Columbus, Ohio (1975), and his B.A. in International Relations from Bucknell University in Lewisburg, Pennsylvania (1973). He also serves on the boards of a number of charitable and educational organizations.

Sidney D. Rosenblatt - - , Executive Vice President, Chief Financial Officer, Treasurer, Secretary and Director

Sidney D. Rosenblatt is an Executive Vice President and has been our Chief Financial Officer, Treasurer and Secretary since June 1995. He also has been a member of our Board of Directors since May 1996. Mr. Rosenblatt was the owner of S. Zitner Company from August 1990 through August 2010 and served as its President from August 1990 through December 1998. From May 1982 to August 1990, Mr. Rosenblatt served as the Senior Vice President, Chief Financial Officer and Treasurer of InterDigital. Mr. Rosenblatt is also a on the Board of Managers of the Overbrook School for the Blind and a member of the Board of the Careers in Culinary Arts Program.

Richard C. Elias - - , Director

Mr. Elias has been a member of our Board of Directors since April 2014. Mr. Elias retired from PPG Industries, Inc. prior to joining our Board. Prior to his retirement, Mr. Elias served as the Senior Vice President - Optical and Specialty Materials of PPG Industries, Inc. from July 2008 through March 30, 2014. From April 2000 through June 2008, Mr. Elias held the position of Vice President, Optical Products of PPG Industries, Inc. Mr. Elias is a director of Black Box Corporation (NASDAQ: “BBOX”) and is a member of its Compensation Committee.

Elizabeth H. Gemmill - - , Director

Ms. Gemmill has been a member of our Board of Directors since April 1997. She is also on the Boards of Beneficial Bancorp, Inc. (NASDAQ: "BNCL") and WHYY, Inc., as well as The Presbyterian Foundation where she serves as the Chairman of the Board. Since March 1999, she has been Managing Trustee and, more recently, President of the Warwick Foundation until the Foundation was dissolved in 2012. From February 1988 to March 1999, Ms. Gemmill was Vice President and Secretary of Tasty Baking Company. Ms. Gemmill is the former Chairman of the Board of Philadelphia University (1998-2009). She previously served as a director of the Philadelphia College of Osteopathic Medicine, the YMCA of Philadelphia and Vicinity, American Water Works Company, Inc. until it was sold in early 2003, and Philadelphia Consolidated Holdings Corporation until it was sold in December 2008. Ms. Gemmill is also a Fellow of the National Association of Corporate Directors.

Rosemarie B. Greco - - , Director

Ms. Greco has been a member of our Board of Directors since March 3, 2015. From approximately 1999 to 2003, Ms. Greco was the founding Principal of Grecoventures Ltd., a business investment and consulting partnership. From 2003 to 2008, she served as the Executive Director of the Pennsylvania Office of Health Care Reform. From 1994 to 1997, she served as the CEO and President of CoreStates Bank, N.A. and the President, CoreStates Financial Corp. from 1996 to 1997. Ms. Greco serves on the Boards of Pennsylvania Real Estate Investment Trust (NYSE: "PEI") and PECO Energy Company, a subsidiary of Exelon Corporation. She is also a member of the Board of Overseers of the University of Pennsylvania School of Nursing and Executive Advisor of Vision 2020, a national coalition of organizations advancing women and leadership.

C. Keith Hartley - - , Director

Mr. Hartley has been a member of our Board of Directors since September 2000. Since June 2000, he has been the President of Hartley Capital Advisors, a merchant banking firm. From August 1995 to May 2000, he was the managing partner of Forum Capital Markets LLC, an investment banking company. In the past, Mr. Hartley held the position of managing partner for Peers & Co. and Drexel Burnham Lambert, Inc. He serves as a director and is on various committees of Swisher International Group, Inc. He also previously served as a director of Idera Pharmaceuticals, Inc.

Lawrence Lacerte - - , Director

Mr. Lacerte has been a member of our Board of Directors since October 1999. Since July 1998, he has been Chairman of the Board of Directors and Chief Executive Officer of Exponent Technologies, Inc., a company specializing in technology and Internet-related ventures. Prior to that time, he was the founder, Chairman of the Board of Directors and Chief Executive Officer of Lacerte Software Corp., which was sold to Intuit Corporation in June 1998.