<SEC-DOCUMENT>0001564590-18-009301-index.html : 20180426 <SEC-HEADER>0001564590-18-009301.hdr.sgml : 20180426 <ACCEPTANCE-DATETIME>20180426160426 ACCESSION NUMBER: 0001564590-18-009301 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20180426 DATE AS OF CHANGE: 20180426 EFFECTIVENESS DATE: 20180426 FILER: COMPANY DATA: COMPANY CONFORMED NAME: UNIVERSAL DISPLAY CORP \PA\ CENTRAL INDEX KEY: 0001005284 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRONIC COMPONENTS & ACCESSORIES [3670] IRS NUMBER: 232372688 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: DEFA14A SEC ACT: 1934 Act SEC FILE NUMBER: 001-12031 FILM NUMBER: 18778492 BUSINESS ADDRESS: STREET 1: 375 PHILLIPS BOULEVARD CITY: EWING STATE: NJ ZIP: 08618 BUSINESS PHONE: 6096710980 MAIL ADDRESS: STREET 1: 375 PHILLIPS BOULEVARD STREET 2: 375 PHILLIPS BOULEVARD CITY: EWING STATE: NJ ZIP: 08618 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>oled-defa14a_20180621.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: oled-defa14a_20180621.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g2018042416043470621442.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g2018042416043470621442.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g2018042416043475121444.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g2018042416043475121444.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g2018042416043473621443.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g2018042416043473621443.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g2018042416043468921441.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g2018042416043468921441.jpg
</DOCUMENT> </SEC-DOCUMENT>