LED TV


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LED TV

A flat panel LCD TV set that uses LEDs (light emitting diodes) for its backlight source rather than the earlier cold cathode fluorescent lamps (see CCFL). Smaller, more power efficient and having a greater optical range than the fluorescents, LED TVs produce deeper blacks and more saturated color. In 2005, Sony offered the first LED TV.

Although an LED TV is really an LCD TV with LED backlighting, the industry branded them as LED TVs to avoid monikers such as "LED backlit TV" or "LED-based LCD TV." Today, most TV sets are LED TVs.

White or RGB
White LEDs are less costly, while red, green and blue (RGB) LEDs provide a richer color gamut.

Backlights: Direct Lit, Edge Lit and Full Array
There are three "local dimming" backlight techniques for LED TVs, all of which dynamically dim the light behind the black areas of the image to make them darker.

The more economical direct-lit method uses LEDs in a sparse array across the back. Because the LEDs are farther away from the screen to allow each light to spread to more pixels, direct-lit TVs are as thick as the older CCFL fluorescent lamp LCD TVs.

Edge-lit LED TVs beam light to the back of the screen from the sides and allow for ultra-thin cases. Although some designs provide selective dimming, they are not as effective as the full array. In addition, they have a tendency to be brighter at the edges than at the center.

The full array covers the entire back of the screen with LEDs. Although the case is thicker than edge-lit designs, the full array provides better details in shadows and more contrast than the other methods. See ULED, LED, OLED, LCD, flat panel TV and Dolby HDR.


A 55" Samsung LED TV
Using edge-lit LEDs, this Samsung TV was only 1.2" deep in 2008; amazingly thin compared to previous LCD TVs. (Image courtesy of Samsung Electronics Company, Ltd., www.samsung.com)







More Than Six Feet Wide
In 2012, Sharp introduced a 90" smart LED TV, the world's largest. The 3D set included apps for Netflix, Hulu and other services with Wi-Fi built in. In 2013, Samsung bested this with a 95" model.
References in periodicals archive ?
8cm (55 inch) 4K LED display with support for HDR10 content, Mi LED TV 4 provides more detail and richer colours.
WALMART - Sharp 55-inch 4K UHD Smart LED TV - (https://www.
For new credit cardholders who will not meet the minimum P32,000 spend to qualify for the free LED TV, they have the chance to receive a free iPod shuffle when they spend at least P5,000 on their new card within thirty (30) days from the receipt of new card.
The VIERA TH85X940M's picture quality and broad range of cuttingA[degrees]edge LED TV features are further enhanced by a modA[degrees] ern art design with black and glossy metal, a premium design to give consumers a look that blends harmoniously with their living space.
The range includes the premium flagship X9500B (85-inch screen size) series featuring the new X-tended Dynamic Range PRO technology to offer brilliant pictures, the X9000B (79-inch and 65-inch screen sizes) delivering an innovative design that integrates magnetic fluid speakers, and the X8500B (65-inch and 55-inch screen sizes) series serving as an affordable option in the 4K LED TV range.
The range includes the premium flagship X9500B series, which is available in 85-inch screen size, featuring the new X-tended Dynamic Range PRO technology to offer brilliant pictures, the X9000B - available in 79-inch and 65-inch screen sizes - delivering an innovative design that integrates magnetic fluid speakers, and the X8500B (available in 65-inch and 55-inch screen sizes) series serving as an affordable option in the 4K LED TV range.
Dubai: Samsung is aiming to cash in on the ultra high-definition (UHD) LED TV sets to rejuvenate sales as they are going to grow at a faster pace than the normal resolution LEDs this year.
Not with Sharp: The new BIG LED TV models from the new AQUOS series LED TVs from Sharp not only captivate with almost life-sized pictures in striking quality, they also boast of extra-low energy consumption.
Other prizes include a laptop, a refrigerator, a 37-inch LED TV, a 32-inch LED TV, a 29-inch LED TV, a digital camera, a microwave oven, a DVD player and watches.
LG 42LA860W Smart 3D 42in LED TV - PS1149 from www.