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ACCESSION NUMBER:		0001564590-20-012064
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20191231
FILED AS OF DATE:		20200320
DATE AS OF CHANGE:		20200320

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:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12031
		FILM NUMBER:		20732938

	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
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<TYPE>10-K/A
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<FILENAME>oled-10ka_20191231.htm
<DESCRIPTION>10-K/A
<TEXT>
Document 1 - file: oled-10ka_20191231.htm

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<DOCUMENT>
<TYPE>EX-23.1
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<FILENAME>oled-ex231_6.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 2 - file: oled-ex231_6.htm

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<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>3
<FILENAME>oled-ex311_10.htm
<DESCRIPTION>EX-31.1
<TEXT>
Document 3 - file: oled-ex311_10.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>4
<FILENAME>oled-ex312_8.htm
<DESCRIPTION>EX-31.2
<TEXT>
Document 4 - file: oled-ex312_8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>5
<FILENAME>oled-ex321_7.htm
<DESCRIPTION>EX-32.1
<TEXT>
Document 5 - file: oled-ex321_7.htm

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<DOCUMENT>
<TYPE>EX-32.2
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<FILENAME>oled-ex322_9.htm
<DESCRIPTION>EX-32.2
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Document 6 - file: oled-ex322_9.htm

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<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>7
<FILENAME>oled-20191231.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 7 - file: oled-20191231.xsd

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>8
<FILENAME>oled-20191231_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 8 - file: oled-20191231_lab.xml

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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>9
<FILENAME>oled-20191231_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
Document 9 - file: oled-20191231_pre.xml

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Document 10 - file: 0001564590-20-012064-xbrl.zip

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Document 12 - file: Show.js

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<TYPE>XML
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<FILENAME>oled-10ka_20191231_htm.xml
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Document 14 - file: oled-10ka_20191231_htm.html

Document 14 - RAW XML: oled-10ka_20191231_htm.xml

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<TYPE>XML
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<FILENAME>FilingSummary.xml
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<TEXT>
Document 15 - file: FilingSummary.html

Document 15 - RAW XML: FilingSummary.xml

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<DOCUMENT>
<TYPE>JSON
<SEQUENCE>16
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 16 - file: MetaLinks.json

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<TYPE>XML
<SEQUENCE>17
<FILENAME>report.css
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<TEXT>
Document 17 - file: report.css

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<TYPE>XML
<SEQUENCE>18
<FILENAME>R1.htm
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<TEXT>
Document 18 - file: R1.htm

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<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>19
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: Financial_Report.xlsx

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