The complaint
IDUNN IP Holdings LLC v. Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc., No. 2:26-cv-00806 (E.D. Tex., Marshall Division), is a sixty-two-page complaint for patent infringement filed September 10, 2026, ECF No. 1, with eight counts. Idunn alleges that it acquired the patents, with the right to sue for past infringement, by recorded assignments. The complaint alleges, on information and belief, that Samsung Electronics America is a wholly owned subsidiary of Samsung Electronics Co. and acts as its agent for distribution of the accused products in the United States.
What the patents cover
The asserted patents are U.S. Patents 7,445,368 (Backlight module and liquid crystal display using same), 7,760,278 (Liquid crystal display comprising a ground electrode and method for manufacturing the same), 8,047,668 (Display device, backlight module of such display device, and method of fixing circuit board on such backlight module), 8,373,624 (Organic light emitting display (OLED) devise, modules, and electronic devices), 8,956,033 (Display device and backlight module), 9,000,425 (Organic light emitting diode, and panel and display using the same), 9,436,305 (Touch display apparatus), and 9,632,236 (Backlight module and display device using the same).
U.S. Patent 7,445,368, titled Backlight module and liquid crystal display using same, issued November 4, 2008. Claim 1 covers a backlight module with a light guide plate having a light entering surface, an illumination device facing it with a supporting member and at least one light emitting diode formed at and electrically connected to the supporting member, and two reflection sheets formed integrally with both the supporting member and the light guide plate, one directly covering part of the top side of the light guide plate next to the light entering surface and the other directly covering part of the bottom side.
What the lawsuit is about
Idunn alleges, on information and belief, that Samsung makes, uses, sells, offers, and imports display products that practice one or more of the patents, naming the Odyssey G3 G30D and S30GD 24-inch monitors, the Galaxy Book4 15.6-inch laptop, the Galaxy S24, the Galaxy Z Fold3 through Fold7 and Z Flip7 foldables, Galaxy Watch wearables, the QN70H 43-inch television, and a Family Hub refrigerator, with the products accused under each patent identified count by count. The prayer asks for a judgment of infringement, a finding of willfulness, damages of no less than a reasonable royalty, enhanced damages, an accounting and future compensation or permanent injunctive relief, and attorneys' fees.
What to watch next
Samsung was served, its time to answer was extended in early October 2026 (ECF No. 9), and counsel for the parties entered appearances through October 23, 2026. Watch for Samsung's answer or Rule 12 motion.