ST. PAUL, Minn. & SEOUL, South Korea--(BUSINESS WIRE)--The Intellectual Property Trial and Appeal Board (“IPTAB”) in Daejeon,
South Korea, recently upheld the validity of all claims of 3M’s Korean
Patent No. 1,074,570 titled "Method for Stacking Surface Structured
LMS Co. Ltd. had petitioned the IPTAB to invalidate 3M’s patent in
response to a patent infringement lawsuit that 3M Innovative Properties
Co. and 3M Korea Ltd. filed against LMS on June 19, 2015, in the Seoul
Central District Court.
3M’s patent infringement lawsuit alleges that certain LMS light
management film package products, including a light management film
package product sold under the product name of “XLAS,” infringe 3M’s
3M’s microreplicated stacked prism films, including 3M Advanced
Structured Optical Composites (ASOC), are integrated into LCD displays.
The prism films direct light to enable a thinner and more
energy-efficient electronic display.
3M is committed to vigorously protecting its intellectual property and
investments in optical film technologies.
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