Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
BROWN JULIA J
   2. Issuer Name and Ticker or Trading Symbol
UNIVERSAL DISPLAY CORP \PA\ [PANL] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Technical Officer
(Last)
(First)
(Middle)
375 PHILLIPS BLVD.		 3. Date of Earliest Transaction (Month/Day/Year)
07/27/2011
(Street)

EWING, NJ 08618		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/27/2011   M   250 A $ 9.1 169,432 D  
Common Stock 07/27/2011   M   10,000 A $ 5.45 179,432 D  
Common Stock 07/27/2011   M   250 A $ 9.94 179,682 D  
Common Stock 07/27/2011   M   250 A $ 9.6 179,932 D  
Common Stock 07/27/2011   M   30,000 A $ 16.94 209,932 D  
Common Stock 07/27/2011   S   40,750 (1) D $ 31.542 (2) 169,182 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy) $ 9.1 07/27/2011   M     250 04/15/2002 04/15/2012 Common Stock 250 $ 0 0 D  
Employee Stock Option (right to buy) $ 5.45 07/27/2011   M     10,000 09/23/2002 09/23/2012 Common Stock 10,000 $ 0 0 D  
Employee Stock Option (right to buy) $ 9.94 07/27/2011   M     250 11/18/2002 11/18/2012 Common Stock 250 $ 0 0 D  
Employee Stock Option (right to buy) $ 9.6 07/27/2011   M     250 06/16/2003 06/16/2013 Common Stock 250 $ 0 0 D  
Employee Stock Option (right to buy) $ 16.94 07/27/2011   M     30,000 01/20/2004 01/20/2014 Common Stock 30,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BROWN JULIA J
375 PHILLIPS BLVD.
EWING, NJ 08618		       Chief Technical Officer  

Signatures

 /s/ Julia J. Brown   07/29/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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).
(1) These shares were sold pursuant to a Rule 10b5-1 Non-Discretionary Trading Plan entered into by Dr. Brown.
(2) Represents the weighted average of a range of sale prices from $31.04 to $32.09 per share. Full information regarding the number of shares sold at each separate price will be provided on request.

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