Samsung's A950 series of LCD HDTVs has been designed to be the next step in image fidelity for liquid crystal display technology. These home theatre HD TVs use Light Emitting Diodes (LEDs) that can selectively illuminate sections of the screen at a time, which means that they have a wider color gamut and better colour reproduction. They also boast superb black levels, do away with back light bleeding, and offer unbelievable dynamic contrast ratios. The transition from Cold Cathode Florescent Lamp back lights (CCFL) to LED back lights also means that the Samsung 9-series televisions should have noticeably longer life span than previous LCD HDTVs.