<SEC-DOCUMENT>0001564590-19-013034-index.html : 20190425 <SEC-HEADER>0001564590-19-013034.hdr.sgml : 20190425 <ACCEPTANCE-DATETIME>20190425160522 ACCESSION NUMBER: 0001564590-19-013034 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20190425 DATE AS OF CHANGE: 20190425 EFFECTIVENESS DATE: 20190425 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: 19767433 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_20190620.htm <DESCRIPTION>DEFA14A - PROXY FILING WITH NOTICE <TEXT> Document 1 - file: oled-defa14a_20190620.htm
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