SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details)			9 Months Ended
	Apr. 22, 2021	Jul. 23, 2012	Sep. 30, 2021
Summary Of Significant Accounting Policies [Line Items]
Recognized income tax positions measured at likelihood of realization description			Recognized income tax positions are measured at the largest amount of which the likelihood of realization is greater than 50%.
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Recognized income tax positions measured at percentage of likelihood of realization			50.00%
Patents [Member] | FUJIFILM [Member]
Summary Of Significant Accounting Policies [Line Items]
OLED patents useful life		10 years	10 years
Patents [Member] | BASF [Member]
Summary Of Significant Accounting Policies [Line Items]
OLED patents useful life			10 years
Other Intangible Assets [Member] | Adesis, Inc. [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period of acquired intangible assets (in years)			10 years
Other Intangible Assets [Member] | Adesis, Inc. [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period of acquired intangible assets (in years)			15 years
Visionox Hefei Technology Co. Ltd [Member]
Summary Of Significant Accounting Policies [Line Items]
Additional agreement duration	5 years