From the press release: As the world’s first Full LED 3D TV, the LX9500 uses an innovative backlight structure to deliver spectacular pictures for the ultimate 3D experience. Illuminated by panels of LEDs directly behind the screen (the 55-inch model boasts 1,200 LEDs), the Full LED display provides images of exceptional brightness and clarify for unrivalled picture quality. Complemented by a 10,000,000:1 dynamic contrast ratio and TruMotion 400Hz (480Hz), the LX9500’s mesmerizing 3D picture transports viewers right into the heart of the action.
Available in 47- and 55-inch versions, LG INFINIA 3D TVs will be available to consumers first in Korea followed by North America, Europe, the CIS as well as other key markets by early May
See link for specs and ignore the title of article - It should read LG and not Samsung:
Samsung Announces FULL LED S3DHD Televisions By May!!