UNIVERSAL DISPLAY CORP \PA\ — Director's Dealing 2010

Dec 30, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (PANL)
CIK: 0001005284
Period of Report: 2010-12-28

Reporting Person: ROSENBLATT SIDNEY D (Director, EVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-19	Common Stock	G	160	—	Disposed	531384	Direct
2010-12-28	Common Stock	F	1612	$31.98	Disposed	527982	Direct
2010-12-28	Common Stock	M	5000	$10.3125	Acquired	532982	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-28	Employee Stock Option (right to buy)	$10.3125	M	5000	Disposed	2011-03-30	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1790	Indirect

Footnotes

F1: On December 15, 2010, Mr. Rosenblatt transferred 895 shares to his daughter, and on December 22, 2010, Mr. Rosenblatt transferred 895 shares to his son. Mr. Rosenblatt is continuing to report these shares as beneficially owned by him.