Samsung Electronics Co. Ltd. of Seoul, South Korea, has begun mass production of its 40-in. “optical sensor in pixel” interactive LCD panels, which feature advanced optical sensors. The panels can detect more than 50 touch points simultaneously and can display images with high-definition resolution and wide-angle viewing. The input functions of a keyboard, mouse or scanner can be performed on the panel. In other news, Samsung has renewed its license agreement with miniaturization technologies developer Tessera Technologies Inc. of San Jose, Calif., for another five years. Tessera said Samsung extended its Jan. 1, 2005, license agreement – scheduled to expire May 17, 2012 – to May 17, 2017. According to the agreement, Samsung will pay royalties on a quarterly basis for semiconductor chip-scale package patents owned by Tessera.