ITO film patent dispute between LG Chem and Nitto Denko

LG Chem and Nitto Denko are under Indium-Tin Oxide Film patent dispute.

ITO Film is transparent and colorless electricity film.  It is the core material of touch screen panel used in various mart devices including smart phone and Tablet PC.

                 
The quality of Smart devices can be varies by the quality of ITO film and tempered glass.

The ITO film is in great demand in the market domestically and internationally.  It is expected that the demand for ITO film will keep increase as long as the smart devices are manufactured.  

Nitto Denko takes 80% of world ITO film market share, and Korean companies including LG Chem, Hanhwa L&C, and Coorong Industry are just about to break into the ITO film market. 

Korean domestic companies also recognized that ITO film market’s potential.

In July, market number one company Nitto Denko made an action for infringement of patent against LG Chem related to ITO film technology. 

WIPS Global Search Resutl: Nitto Denko's ITO Film patent

LG Chem raised invalidation trial against Nitto Denko to patent tribunal as a response.

LG Chem claimed that there is no reason to protect Nitto Denko’s patent because the technology has long been used and there are many other similar technologies have existed. 

LG Chem also mentioned that they succeed in domestically producing complete its own technology after year of studies.  In addition, LG Chem stated that Nitto Denko is obstructing by its patents which will die soon to prevent competitor’s market advance.

Preoccupied companies raise the patent litigation to maintain its market share is the recent trend.  Hence, it is considered that other companies entered the market also will have chance to get into the patent infringement.

LG Chem and Nitto Denko are also running neck and neck in the large LCT polarized plate market. 

The patent lawsuit between LG Chem and Nitto Denko will be done in August. 

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