POWER OF ATTORNEY

     The undersigned hereby constitutes and appoints each of Steven V. Abramson
and Sidney D. Rosenblatt his/her true and lawful attorney-in-fact to:

     (1)  execute for and on behalf of the undersigned, in the undersigned's
          capacity as an officer and/or director of Universal Display
          Corporation (the "Company"), Forms 3, 4 or 5 in accordance with
          Section 16(a) of the Securities Exchange Act of 1934, as amended, and
          the rules thereunder.

     (2)  do and perform any and all acts for and on behalf of the undersigned
          which may be necessary or desirable to complete the execution of any
          such Form 3, 4, or 5 and the timely filing of such form with the
          United States Securities and Exchange Commission and any other
          authority; and

     (3)  take any other action of any type whatsoever in connection with the
          foregoing which, in the opinion of such attorney in fact, may be of
          benefit to, in the best interest of, or legally required by, the
          undersigned, it being understood that the documents executed by such
          attorney-in-fact on behalf of the undersigned pursuant to this Power
          of Attorney shall be in such form and shall contain such terms and
          conditions as such attorney-in-fact may approve in his/her discretion.

     The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform every act and thing whatsoever requisite, necessary
and proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as such attorney-in-fact might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or his/her
substitute or substitutes, shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers herein granted. The undersigned
acknowledges that the foregoing attorney-in-fact, in serving in such capacity at
the request of the undersigned, is not assuming any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934, as amended.








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     This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked in writing.


     IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney on
the 25th day of September, 200_.


                                           /s/ Elizabeth H. Gemmill
                                           ------------------------
                                           Signature


                                           Elizabeth H. Gemmill
                                           ------------------------
                                           Print Name




























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