Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Winters Steven G
 2. Date of Event Requiring Statement (Month/Day/Year)
03/26/2007		 3. Issuer Name and Ticker or Trading Symbol
UNIVERSAL DISPLAY CORP \PA\ [PANL]
(Last)
(First)
(Middle)
C/O WOLF, BLOCK, SCHORR AND SOLIS-COHEN, 1650 ARCH STREET 22ND FLOOR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PHILADELPHIA, PA 19103		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Winters Steven G
C/O WOLF, BLOCK, SCHORR AND SOLIS-COHEN
1650 ARCH STREET 22ND FLOOR
PHILADELPHIA, PA 19103		     X    

Signatures

/s/ Steven G. Winters 03/26/2007
**Signature of Reporting Person Date

Explanation of Responses:

No securities are beneficially owned

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
 
Remarks:
No securities are beneficially owned.  The undersigned is a Reporting Person as a result of his position as a trustee of The Sherwin I. Seligsohn Irrevocable Indenture of Trust FBO Scott Seligsohn (the "Seligsohn Trust") and The Sherwin I. Seligsohn Irrevocable Indenture of Trust FBO Lori S. Rubenstein  (the "Rubenstein Trust").  The undersigned has replaced Joshua Averill (who resigned as trustee of the Seligsohn Trust and the Rubenstein Trust) as trustee of such trusts.  The Reporting Person does not have a pecuniary interest in any of the shares held by such trusts.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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