Samsungs Introduces Premium LCD TVs Featuring Super-Clear, LED-Backlit Panels

Samsung Electronics Co., Ltd. has announced that its new LED-backlit LCD displays are now available in large premium-model, full-HD TVs at major U.S retailers, according to a report by the Society for Information Display.

Available in 40-, 46-, 52- and 57-inch diagonal screen sizes, Samsungs new local dimming, LED (light-emitting diode) technology provides a brightness level of 450nits, and reduces power consumption by as much as 30%, according to a Samsung press release. The new panels feature a jump in the dynamic contrast ratio from between 5,000:1 and 25,000:1, to 100,000:1 and even 500,000:1.

Depending upon the number of LEDs used in a screen panel design, the dynamic contrast ratio can improve the contrast in colors by as much as 1,000% over the CCFL (cold cathode fluorescent lamp) LCD TVs typically used today, according to Samsung. Another significant advantage to Samsungs local dimming technology is that the LED scanning process shuts off the diodes in precise sequences, thereby essentially eliminating any remnants of image ghosting that had previously been a drawback in some LCD TVs.

With local-dimming LEDs, hundreds of wafer-thin diodes about the width of the eyes pupil are electronically turned off and on in exacting sequences that respond to movement on the screen - areas only a fraction of what was previously possible with the long, thin fluorescent lamps that are the most prevalent form of TV backlighting, according to the press release. In black areas of the picture, the diodes can be completely shut off in order to generate total blackness.