EXHIBIT 1
JOINT FILING AGREEMENT
The undersigned hereby agree that this Statement on Schedule 13G with
respect to the beneficial ownership of shares of Common Stock, par value $0.01
per share, of Universal Display Corporation is filed jointly, on behalf of each
of them.
This Agreement may be executed in multiple counterparts, each of which
shall be deemed to be an original as against the other parties whose signatures
appear hereon, and each of which shall together constitute one and the same
instrument. If executed in multiple counterparts, this Agreement shall become
binding when any counterpart or counterparts hereof, individually or taken
together, bear the signatures of all parties reflected hereon as the
signatories.
Xxxxxxx X. Xxxxxxxxx Irrevocable Indenture
of Trust dated 7/29/93 FBO Xxxxx Xxxxxxxxx
Dated: February 9, 2004 By: /s/ Xxxxx Xxxxxxxxx
-------------------
Xxxxx Xxxxxxxxx, Co-Trustee
Dated: February 7, 2004 By: /s/ Xxxx X. Xxxxxxxxxx
----------------------
Xxxx X. Xxxxxxxxxx, Co-Trustee
Dated: January 21, 2004 By: /s/ Xxxxxxxx X. Xxxxxxxxxxx
---------------------------
Xxxxxxxx X. Xxxxxxxxxxx, Co-Trustee
Xxxxxxx X. Xxxxxxxxx Irrevocable Indenture
of Trust dated 7/29/93 FBO Xxxx X. Xxxxxxxxxx
Dated: February 9, 2004 By: /s/ Xxxxx Xxxxxxxxx
-------------------
Xxxxx Xxxxxxxxx, Co-Trustee
Dated: February 7, 2004 By: /s/ Xxxx X. Xxxxxxxxxx
----------------------
Xxxx X. Xxxxxxxxxx, Co-Trustee
Dated: January 21, 2004 By: /s/ Xxxxxxxx X. Xxxxxxxxxxx
---------------------------
Xxxxxxxx X. Xxxxxxxxxxx, Co-Trustee
Dated: February 9, 2004 /s/ Xxxxx Xxxxxxxxx
-------------------
Xxxxx Xxxxxxxxx
Dated: February 7, 2004 /s/ Xxxx X. Xxxxxxxxxx
----------------------
Xxxx X. Xxxxxxxxxx
Dated: January 21, 2004 /s/ Xxxxxxxx X. Xxxxxxxxxxx
---------------------------
Xxxxxxxx X. Xxxxxxxxxxx