Samsung Electronics has filed a lawsuit against LG Display, alleging seven of the latter's patents on organic light-emitting diode (OLED) panel technologies to be invalid as they lack innovation.
South Korea's Yonhap News Agency reported Monday that Samsung filed the suit with a local intellectual property tribunal, seeking LG Display's patents to be declared invalid.
The move comes after LG Display in September sued Samsung over an alleged violation of its OLED patents. That suit claimed five Samsung products, including the Galaxy S smartphone series and Galaxy Tab tablet device, had infringed on LG Display's patents, according to the report. Compared to liquid crystal displays (LCD) which require a backlight, OLED displays enable slimmer designs and more vivid images, and has led TV manufacturers to turn to it amid slowing TV demand.
LG Display, an affiliate of LG Electronics, is the world's No. 2 maker of LCD panels.