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

Jan 5, 2010

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: UNIVERSAL DISPLAY CORP \PA\ (PANL)
CIK: 0001005284
Period of Report: 2010-01-01

Reporting Person: Hack Michael G (VP Strategic Product Develop)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10445	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$10.38	2011-02-05	Common Stock (1000)		Direct
Employee Stock Option (right to buy)	$10.3125	2011-03-30	Common Stock (12500)		Direct
Employee Stock Option (right to buy)	$9.94	2012-11-18	Common Stock (500)		Direct
Employee Stock Option (right to buy)	$9.60	2013-06-16	Common Stock (250)		Direct
Employee Stock Option (right to buy)	$9.21	2013-09-15	Common Stock (500)		Direct
Employee Stock Option (right to buy)	$13.92	2013-12-23	Common Stock (15000)		Direct
Employee Stock Option (right to buy)	$13.28	2014-04-20	Common Stock (250)		Direct
Employee Stock Option (right to buy)	$10.62	2014-06-15	Common Stock (250)		Direct
Employee Stock Option (right to buy)	$10.07	2014-11-23	Common Stock (250)		Direct
Employee Stock Option (right to buy)	$8.14	2015-01-18	Common Stock (7000)		Direct
Employee Stock Option (right to buy)	$10.51	2015-12-30	Common Stock (20000)		Direct
Employee Stock Option (right to buy)	$12.40	2016-06-20	Common Stock (750)		Direct

Footnotes

F1: Of these, 9,773 shares are subject to vesting restrictions, with 2,075 shares vesting on January 6, 2010, 2,458 shares vesting on January 9, 2010, 2,075 shares vesting on January 6, 2011, 1,090 shares vesting on January 9, 2011, and 2,075 shares vesting on January 6, 2012.