By Kim Yoo-chul
The display panel-making affiliates of Samsung and LG traded barbs over an ongoing police investigation into Samsung's alleged theft of LG's OLED technologies, Wednesday.
Only weeks ago, the CEOs of Samsung Display and LG Display agreed to end the dispute some industry watchers had called "meaningless and ugly" at a meeting arranged by the government.
However, the two have resumed the dispute, each accusing the other of stealing its technologies.
On Tuesday, police raided four factories of Samsung Display to secure evidence for LG's theft claims.
LG Display claimed some of its White OLED (W-OLED) technologies were stolen by Samsung, and asked police to look into what it called a corporate espionage case.
Samsung, however, dismissed LG's claims as groundless, saying it has no reason to steal LG's technologies because it already controls the global demand for OLED displays.
Samsung has also accused LG of similar theft but has not asked police to investigate.
"We believe police will find evidence that can probe Samsung's misconduct. Samsung stole some of our high-end technologies. That's a pity for Samsung," LG said in a statement.
"Samsung brazenly accused us of stealing its OLED technologies. That is hard to understand."
Gary Sohn, public relations chief at LG Display, said the firm will fully cooperate with police.
Samsung Display CEO Kim Ki-nam denied the allegations.
"You should remember that Samsung Display is the only firm that manufactures and sells OLED panels. We have no reason to steal other companies' technologies. Samsung is always worrying about the possible leakage of our patented technologies," he told reporters.
Kim met with Samsung executives and was confident he could prove the company's innocence, said a Samsung spokesman.
Police are investigating whether local partners of LG Display leaked its OLED technologies to Samsung.
In 2010, police secured evidences that LG's two Korean partners leaked the technologies overseas, and Samsung is involved in the case.
Last year, LG launched a damage suit against Samsung, while Samsung attempted to nullify LG's seven OLED patents. They later agreed to seek a compromise. LG is demanding compensation.