Plaintiff
4 cases as plaintiff.
Light Guide Innovations, LLC is a Texas-based limited liability company that engages in patent assertion. It has been identified by industry trackers like Unified Patents and RPX as a non-practicing entity (NPE). Public records indicate Light Guide Innovations is managed by Anjay Technology Partners LLC, which is part of a network of entities associated with Anjay Venture Partners LLC. The company appears to be financed by the litigation funder Longford Capital Management.
Light Guide Innovations does not have its own products or services. Instead, it holds and asserts a portfolio of patents acquired from Suzhou Lekin Semiconductor Co. Ltd. (d/b/a LEKIN) in June 2024. This portfolio generally relates to LED lighting technology, including backlight assemblies, lenses, and components used in televisions and other displays. The patents cover specific designs for LED modules, electrical connectivity, thermal management, and optical performance.
The company's patent-litigation posture is that of an NPE asserting its acquired portfolio. As the authoritative case data shows, Light Guide Innovations has been a plaintiff in three district court cases and a defendant in one PTAB proceeding. All of its plaintiff suits were filed in the U.S. District Court for the Eastern District of Texas, a venue known for patent litigation.
Notable cases initiated by Light Guide Innovations include lawsuits against major electronics manufacturers and retailers. Its campaign began in 2024 with suits against TCL and Hisense, followed by a 2025 suit against Walmart targeting the sale of VIZIO televisions. It has also sued Samsung over its televisions and display products. The asserted patents have been challenged at the Patent Trial and Appeal Board; for example, Hisense has filed for a PTAB review of a patent asserted against it.
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An active lawsuit accusing Samsung's televisions and displays of infringing on a portfolio of patents that includes the '415 patent.
An ongoing lawsuit against Walmart, which was later amended to include various Hisense and TCL entities. The complaint explicitly asserts U.S. Patent No. 7,936,415 as one of the patents-in-suit.
An active and ongoing patent infringement lawsuit filed by Light Guide Innovations against several Hisense entities.
An infringement suit filed by Light Guide Innovations against several TCT and TCL entities. The case is now closed, but the specific reason for the closure is not detailed in the provided records.