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ACQUIRED TECHNOLOGY (Details) (USD $)
3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 10, 2011
Jul. 23, 2012
patent
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]          
Acquired technology, gross $ 126,852,000us-gaap_FiniteLivedIntangibleAssetsGross        
Less: Accumulated amortization (46,588,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization       (43,838,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Acquired technology, net 80,264,000us-gaap_FiniteLivedIntangibleAssetsNet       83,014,000us-gaap_FiniteLivedIntangibleAssetsNet
Amortization of intangibles 2,750,000us-gaap_AmortizationOfIntangibleAssets 2,750,000us-gaap_AmortizationOfIntangibleAssets      
PD LD, Inc [Member]          
Finite-Lived Intangible Assets [Line Items]          
Acquired technology, gross 1,481,000us-gaap_FiniteLivedIntangibleAssetsGross
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_PdLdIncMember
       
Motorola [Member]          
Finite-Lived Intangible Assets [Line Items]          
Acquired technology, gross 15,909,000us-gaap_FiniteLivedIntangibleAssetsGross
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_MotorolaMember
       
Motorola [Member] | Licensing Agreements [Member]          
Finite-Lived Intangible Assets [Line Items]          
Number of patents under license agreement 74oled_NumberOfPatentsUnderLicenseAgreement
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_MotorolaMember
       
Amortization period of acquired intangible assets (in years)     7 years 6 months    
FUJIFILM [Member]          
Finite-Lived Intangible Assets [Line Items]          
Acquired technology, gross 109,462,000us-gaap_FiniteLivedIntangibleAssetsGross
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_FujifilmMember
       
FUJIFILM [Member] | Patents [Member]          
Finite-Lived Intangible Assets [Line Items]          
Number of patents acquired (more than)       1,200oled_NumberOfPatentsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_FujifilmMember
 
Assigned value of acquired intangible assets       105,000,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_FujifilmMember
 
Cash paid for OLED patents       $ 4,100,000oled_FiniteLivedIntangibleAssetsAcquiredOtherAcquisitionCosts
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
/ oled_FiniteLivedIntangibleAssetsPurchasedFromAxis
= oled_FujifilmMember
 
OLED patents useful life       10 years