The Company has two operating segments: Driver IC and Non-driver Products. The Driver IC segment generally is engaged in the design, research, development and sale of displays driver for large-sized TFT-LCD panels, which are used in televisions and desktop monitors, and displays driver for small and medium-sized TFT-LCD panels, which are used in mobile handsets and consumer electronics products. The Non-driver segment primarily is engaged in the design, research, manufacturing and sale of non-driver products, such as timing controllers, 3D Sensing Solution, LCoS, CMOS Image Sensors and WLO.


	Year Ended December 31, 2020
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

Segment revenues	$	756,522	130,760		887,282
Segment operating income (loss)	$	98,687	(40,761)		57,926
Non operating loss, net					(1,054)
Consolidated profit before income taxes				$	56,872
Significant noncash items:
Share-based compensation	$	481	282		763
Depreciation and amortization	$	5,959	17,637		23,596


	Year Ended December 31, 2021
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

Segment revenues	$	1,361,442	185,655		1,547,097
Segment operating income (loss)	$	551,943	(6,922)		545,021
Non operating loss, net					(429)
Consolidated profit before income taxes				$	544,592
Significant noncash items:
Share-based compensation	$	424	276		700
Depreciation and amortization	$	5,598	15,744		21,342


	Year Ended December 31, 2022
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

Segment revenues	$	1,042,938	158,401		1,201,339
Segment operating income (loss)	$	275,275	(17,688)		257,587
Non operating income, net					18,978
Consolidated profit before income taxes				$	276,565
Significant noncash items:
Share-based compensation	$	1,655	1,441		3,096
Depreciation and amortization	$	8,261	13,081		21,342

The following tables summarize information pertaining to the segment revenues from customers in different geographic region (based on customer’s headquarter location):


	For the year ended December 31, 2020
			Non-driver	Consolidated
	Driver IC		products	Total

		(in thousands)

China	$	643,527	63,475	707,002
Taiwan		88,001	35,179	123,180
Other Asia Pacific (Philippines, Korea and Japan)		24,964	31,231	56,195
Europe and America		30	875	905
	$	756,522	130,760	887,282


	For the year ended December 31, 2021
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

China	$	1,149,442	111,656	1,261,098
Taiwan		167,728	51,378	219,106
Other Asia Pacific (Philippines, Korea and Japan)		44,272	21,912	66,184
Europe and America		—	709	709
	$	1,361,442	185,655	1,547,097


	For the year ended December 31, 2022
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)
China	$	828,754	96,675	925,429
Taiwan		149,037	26,507	175,544
Other Asia Pacific (Philippines, Korea, Japan and Israel)		64,523	25,735	90,258
Europe and America		624	9,484	10,108
	$	1,042,938	158,401	1,201,339

The following tables summarize information pertaining to the segment revenues from major product lines:


	For the year ended December 31, 2020
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

Display drivers for large-sized applications	$	240,789	—	240,789
Display drivers for small and medium-sized applications		515,733	—	515,733
Non-driver products		—	130,760	130,760
	$	756,522	130,760	887,282


	For the year ended December 31, 2021
			Non-driver	Consolidated
	Driver IC		products	Total

	(in thousands)

Display drivers for large-sized applications	$	397,905	—	397,905
Display drivers for small and medium-sized applications		963,537	—	963,537
Non-driver products		—	185,655	185,655
	$	1,361,442	185,655	1,547,097


	For the year ended December 31, 2022
			Non-driver	Consolidated
		Driver IC	products	Total

	(in thousands)

Display drivers for large-sized applications	$	263,992	—	263,992
Display drivers for small and medium-sized applications		778,946	—	778,946
Non-driver products		—	158,401	158,401
	$	1,042,938	158,401	1,201,339

The carrying values of the Company’s property, plant and equipment are located in the following countries:


	December 31,		December 31,
	2021		2022

	(in thousands)
Taiwan	$	130,951	123,361
U.S.		1,163	1,595
China		662	834
Korea		343	245
Israel		65	—
Japan		52	103
	$	133,236	126,138

Revenues from significant customers, those representing 10% or more of total revenue for the respective periods, are summarized as follows:


	Year ended December 31,
	2020		2021	2022

	(in thousands)
Driver IC segment:
Customer A and its affiliates	$	264,700	443,930	347,794
Customer C		109,911	290,578	112,231
	$	374,611	734,508	460,025
Non-driver products segment:
Customer A and its affiliates	$	24,963	53,153	40,400
Customer C		2,593	4,639	1,165
	$	27,556	57,792	41,565

Accounts receivable from significant customers, those representing 10% or more of total accounts receivable for the respective dates, is summarized as follows:


	December 31,		December 31,
	2021		2022

	(in thousands)
Customer A and its affiliates	$	160,107	82,144
Customer C		49,806	26,838
	$	209,913	108,982

The Company has recognized the following contract liabilities in relation to revenue from contracts with customers:


	December 31,		December 31,
	2021		2022

	(in thousands)
Contract liabilities-current	$	37,663	49,167
Contract liabilities-non-current	$	10,221	—

Revenue recognized in the current reporting period amounted to $30,759 thousand was related to carried-forward contract liabilities for performance obligations not satisfied in prior year.

All of the service contracts are for periods of one year or less. As permitted under IFRS 15, the transaction price allocated to these unsatisfied contracts is not disclosed. As of December 31, 2022, the Company did not recognize an asset in relation to costs to fulfill a service contract.