LED TV

(redirected from LED LCD TV)

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 ?
In addition, Myntra is offering attractive gifts such as Maruti Swift, 55'' LED LCD TV and mobile phones, and digiflop pro tablets for lucky buyers.
While the company is trying to bank of the novelty of the adjustable screen, its model will have to share the CES showroom with Samsung's recently announced bendable LED LCD TV with 4K resolution.
Prize: 47in LG LED LCD TV (47LA620V) (RRP PS765) and YouView+ Box (Humax DTR-1010/500GB) (RRP PS229) delivered within 28 days of competition closing.
Prize: 47" LG LED LCD TV (47LA620V) (RRP PS765) and YouView+ Box (Humax DTR–1010/500GB) (RRP PS229) delivered within 28 days of competition closing.
Sydney, Australia, Dec 12, 2011 - (ABN Newswire) - Skyworth Digital Holdings Limited (HKG:0751) recorded significant year-on-year growth of 188% and 190% in sales volume of LED LCD TV in mainland China in November 2011 and from April to November 2011 respectively.
Our prize includes a 42in Panasonic Viera Full HD LED LCD TV, Blu-ray player, Jamo speaker system plus a copy of The Killing Season 1 on Blu-ray.
Total LED LCD TV unit shipments increased to 15 million units in the first quarter, compared with just three million units a year earlier.
It will also showcase an expansive 72-inch screen, the largest on any LED LCD TV on the market today.
This year's achievements include the world's slimmest LED LCD TV - a 2009 CES Innovations Award honoree - wireless 1080p Full HD TV, broadband enabled TVs and energy saving display products.
Enjoy with the whole family on an amazing 40 inch LG LED LCD TV, an LG DVD player and a state-of-the-art surround sound system
Enjoy it with the whole family on an amazing 40inch LG LED LCD TV, with an LG DVD player and a state-of-theart surround sound system.
LG's CTO In Jae Chung said, " With the development of the world's thinnest LED LCD TV panel that is only 2.