Founded in 1998, DTC is an LCD module maker primarily supplying display solutions for mobile handsets and tablet PCs.
The small and mid-size mobile display market has shrunk domestically and abroad as flagship devices shift to AMOLED, though demand persists in low-cost handset markets in China, India, and other emerging economies.
DTC secures cost competitiveness through overseas contract manufacturing and supplies overseas subsidiaries of Samsung Electronics.
Since 2012 the company has also run a real estate rental business, leasing office buildings, factories, and residential studio units concentrated around techno-valley and industrial complex areas in Seongnam, Cheonan, and Anseong.
In January 2025, DTC acquired a 21.97% stake in LED specialist Lumens, becoming its largest shareholder and consolidating Lumens' LED, LGP (light guide plate), and automotive electronics operations as subsidiaries.
In August 2026, however, DTC signed an agreement to sell the Lumens controlling stake to Nexton & Roll Korea, an affiliate of ROA&CO Group, for KRW 28 billion (KRW 2,650 per share), effectively exiting the LED business.
The deal is scheduled to close on September 2, 2026 with the transfer of largest-shareholder status, after which Lumens-related revenue and earnings are likely to be excluded from DTC's consolidated results going forward.
As a result, the company's business structure is returning to its two traditional pillars: LCD module manufacturing and real estate rental.