Exhibit 23.1 [GRAPHIC OMITTED] CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS To Universal Display Corporation: As independent public accountants, we hereby consent to the incorporation of our report included in this Form 8-K into the Company's previously filed S-8 Registration No. 333-92649, SB-2 Registration No. 333-81983, and S-3 Registration Nos. 333-40760, 333-48810, 333-50990. /s/ Arthur Andersen LLP Philadelphia, Pennsylvania March 20, 2001