New LCD TVs Increase Contrast Ratio
Source: Tom's Guide US | Keywords: samsung, lcd
San Jose (CA) - Samsung released new LED-backlit LCD displays, which are expected to increase the contrast ratio of LCD TVs by a factor of 20.
According to the manufacturer, the new panels enable a jump in the dynamic contrast ratio from a typical 5000:1 and 25,000:1 in today’s LCD TV panels into a range between 100,000:1 and 500,000:1. The displays are available 40”, 46”, 52” and 57” diagonal screen sizes and promise the “clearest images on the market today” in what Samsung calls “premium LCD TVs”.
The panels are using a new LED technology described as local dimming: “Hundreds of wafer-thin diodes about the width of the eye’s 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 most prevalent form of TV backlighting - long, thin fluorescent lamps. In black areas of the picture, the diodes can be completely shut off in order to generate total blackness,” Samsung explained.
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 1000% over the CCFL (cold cathode fluorescent lamp) LCD TVs typically used today, according to the manufacturer.
Samsung said that its “extreme-contrast LCD panels” are now available in Samsung TVs in the U.S. The company expects other manufacturers to adopt the technology for their HDTVs in the future.
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wow, how much does it cost?
wow, how much does it cost?
One LCD TV with 40" screen and contrast of 100.000:1 will cost you 3899 $.
This contrast ratio stats are bogus. If you look at the actual color depth and contrast ratio of a digital image, it is impossible to display 100,000 or 500,000 contrast ratio. The detail is simply not there. Even the 5,000:1 contrast ratio is a joke. When they measure it its actually only 600 or 700 to 1... despite the "minimum" listed by the manufacturer to be 1,000:1 and dynamic is 5,000:1. Its just a phony number game to give the impression their getting more for their money, when, in fact, they are being lied to. 24-bit or 32-bit color makes no difference. Sure some REAL extra contrast does help, but the video signal itself does not contain anywhere near 5,000:1 contrast ratio, let alone 100K or 500K. BOGUS and IRRELEVANT DETAILS.
I'm confused, if these are the 81 series LED televisions, this is OLD news. They came out many months ago, and from what i've seen are not the jump this "advertisements/article" claims them to be. They looked alot like their 71 series, many even think the 71 series is better since it doesnt suffer from some of the setbacks of LED backlighting.
Maybe Toms will wait until spring and talk about how Pioneer releasing their new advanced Kuro display technology....
i agry with MrJustin
Mmmm, plasma technology in a LCD??? Where are the LCD fanatics?
How will this affect power consumption? Will this mean reduced power consumption because areas of the screen not showing full white can use less current to drive the LEDs?
Anyone any idea how these compare to the newer technologies such as the Organic LED technologies. I realise that sony have released the first model.
see http://en.wikipedia.org/wiki/PLED
Does this have anything to do with http://www.bit-tech.net/hardware/2 [...] hdr_edr/1?
Yanko - yes.