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Segment Information
 12 Months Ended
Dec. 31, 2022
Segment Reporting [Abstract]  
Segment Information SEGMENT INFORMATION
We operate in one segment: the design, development, marketing and sale of IC solutions for use in electronic display devices. We generate our revenue from two broad product markets: the Mobile market and the Home & Enterprise market. The chief operating decision maker, or CODM, is our CEO. Our CODM evaluates financial performance and allocates resources using financial information reported on a company-wide basis. The Cinema market does not contribute material revenue and is therefore being included in this one segment.
Geographic Information
Revenue by geographic region, was as follows:
 Year Ended December 31,
 20222021
Japan$37,675 $27,001 
China25,570 23,977 
U.S.3,442 1,624 
Taiwan3,032 2,142 
Korea277 116 
Europe150 242 
$70,146 $55,102 

Significant Customers
 
The percentage of revenue attributable to our distributors, top five end customers, and individual distributors or end customers that represented more than 10% of revenue in at least one of the periods presented, is as follows:
 Year Ended December 31,
 20222021
Distributors:
All distributors57 %56 %
Distributor A29 %27 %
Distributor B17 %13 %
End Customers: 1
Top five end customers76 %76 %
End customer A37 %35 %
End customer B14 %22 %
End customer C13 %8 %
1 End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors.
 
Each of the following accounts represented 10% or more of total accounts receivable in at least one of the periods presented:
 December 31,
 20222021
Account W31 %41 %
Account X27 %27 %
Account Y12 %1 %
Account Z11 %15 %