FILE NO. 333-101733
                                                      FILED UNDER RULE 424(b)(3)

                              PROSPECTUS SUPPLEMENT

                      To Prospectus dated January 10, 2003

                          UNIVERSAL DISPLAY CORPORATION


         This prospectus supplement supplements the prospectus dated January 10,
2003, relating to the resale of up to 2,020,500 shares of our common stock, par
value $.01 per share, by certain of our shareholders. The prospectus was filed
as part of our Registration Statement on Form S-3 (No. 333-101733).

         No dealer, salesperson or any other person has been authorized to give
any information or make any representations not contained in this prospectus
supplement or the prospectus and, if given or made, the information or
representations must not be relied upon as having been authorized by us or the
selling shareholders. This prospectus supplement and the prospectus do not
constitute an offer to sell, or a solicitation of an offer to buy, any
securities to any person in any jurisdiction where such an offer or solicitation
would be unlawful. Neither the delivery of this prospectus supplement or the
prospectus nor any sale made hereunder or thereunder shall, under any
circumstance, create any implication that the information contained herein or
therein is correct as of any time subsequent to the date hereof.

         Since the date of the prospectus, Sidney D. Rosenblatt, a selling
shareholder named in the "Selling Shareholders" table in the prospectus, has
transferred warrants to purchase an aggregate of 25,000 shares of our common
stock to Lois and Raymond Beamesderfer, Michael and Susan Murphy and Helen
Tallman (each, a "Transferee"), none of whom were named as a selling shareholder
in the prospectus. The Transferees have requested that they be included as
selling shareholders in the prospectus. Accordingly, the "Selling Shareholders"
table of the prospectus is supplemented by the information in the table below to
include the Transferees with respect to the shares that were transferred to
them, as indicated below. The total number of shares of our common stock offered
by the prospectus, as supplemented by this prospectus supplement, remains

                                                             Maximum           Beneficial Ownership
                                    Number of Shares        Number of         After Resale of Shares
            Name of                Beneficially Owned     Shares Being      Number of
      Selling Shareholder          Before Offering(1)        Offered         Shares            Percent
      -------------------          ------------------        -------         ------            -------
 Lois and Raymond Beamesderfer          10,000               10,000            0                  0
 Michael and Susan Murphy               10,000               10,000            0                  0
 Helen Tallman                          5,000                5,000             0                  0

(1) Consists of shares of common stock that may be acquired immediately upon
    exercise of warrants.

                                October 14, 2003