FORM 5 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Form 3 Holdings Reported Form 4 Transactions Reported

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ANNUAL 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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1. Name and Address of Reporting Person * ROSENBLATT SIDNEY D 2. Issuer Name and Ticker or Trading Symbol UNIVERSAL DISPLAY CORP \PA\ [OLED] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP and CFO (Last) (First) (Middle) C/O UNIVERSAL DISPLAY CORPORATION, 375 PHILLIPS BLVD. 3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year) 12/31/2017 (Street) EWING, NJ 08618 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Reporting (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 at end of Issuer's Fiscal Year (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Amount (A) or (D) Price Common Stock 12/01/2017   G 2,000 D $ 0 270,431 D   Common Stock 12/21/2017   G 1,500 D $ 0 268,931 D   Common Stock 12/26/2017   G 5,903 D $ 0 257,028 (1) D   Common Stock 12/31/2017   J(2) 17 A $ 109.5225 257,045 D   Common Stock             72,614 (3) I By Grantor Retained Annuity Trust Common Stock             50,356 (4) I By Family Limited Partnership Common Stock             23,000 (5) I By Spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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SEC 2270 (9-02)

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 at End of Issuer's Fiscal Year (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
ROSENBLATT SIDNEY D C/O UNIVERSAL DISPLAY CORPORATION 375 PHILLIPS BLVD. EWING, NJ 08618	  X	Â	  EVP and CFO	Â

Signatures

/s/ Sidney D. Rosenblatt		02/12/2018
**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)	Reflects transfer of 6,000 shares to Mr. Rosenblatt's Grantor Retained Annity Trust on December 26, 2017.
(2)	These shares were acquired under the Universal Display Corporation Employee Stock Purchase Plan.
(3)	Includes 6,000 shares transferred from Mr. Rosenblatt on December 26, 2017 to the following GRAT: The Sidney Rosenblatt December 2017 Annuity Trust dated as of December 26, 2017. Mr. Rosenblatt is trustee and beneficiary of such Grantor Retained Annity Trust.
(4)	These shares are held by the Rosenblatt Family Limited Partnership, a limited partnership of which he is the sole general partner and he and his children are the sole limited partners.
(5)	These shares are held by Mr. Rosenblatt's spouse and are being reported as beneficially owned by him.

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