Recently, InterDigital filed patent infringement lawsuits against television manufacturers Hisense and TCL in multiple jurisdictions. The specific courts involved include: the Munich District Court of the Unified Patent Court, the Munich Regional Court in Germany, the State Court of Rio de Janeiro in Brazil, and the Delhi High Court in India.

On February 10, 2026, InterDigital formally announced this series of lawsuits. The company stated that Hisense and TCL, both among the world's top five TV manufacturers, utilize its patented foundational technologies without lawful authorization.

According to the company's announcement and court filings, the patents in question primarily cover HEVC/H.265, VP9, AV1 video compression, and high dynamic range (HDR) technologies—widely implemented in modern television products.

HEVC/H.265 technology is typically subject to FRAND (Fair, Reasonable, and Non-Discriminatory) licensing terms for standard-essential patents. While VP9 and AV1 standards are often promoted as “royalty-free,” certain implementation methods may still be constrained by non-standard-essential patents. InterDigital explicitly stated in its announcement that it did not participate in the development of the VP9 and AV1 standards, implying that related patent claims may not be bound by FRAND commitments.

Hisense and TCL have been involved in multiple patent licensing disputes in recent years but have not yet publicly responded to this series of lawsuits.