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What is OLED TV?
Game-changing screen technology produces the best picture we've ever seen
If you’re tuned in to new technology, you’ve probably at least heard of OLED, a new way to display images. It’s been hovering on the horizon for so long it was beginning to seem like a mirage, but the first large-screen OLED TVs are finally here, and they’re pretty impressive. OLED (pronounced “oh-led”) is the first truly new display technology since plasma and LCD arrived in the late '90s. It's a big step beyond both of those TV types — the closest thing we’ve seen to a perfect screen technology.
OLED combines the best performance aspects of all the screen technologies that have come before, and raises the bar for overall TV picture quality to a new level. Even as other screen innovations like 4K are beginning to appear, nothing else matches the "wow" factor of OLED.
How does OLED work?
OLED stands for Organic Light Emitting Diode, and it’s the organic part that is groundbreaking. Traditional light emitting diodes have been used in LED-LCD TVs for years — as the white backlight shining through a layer of LCD pixels and red, green, and blue filters. OLED screens use a completely different panel structure, with a series of organic (carbon–based) thin films forming the pixel layers. These pixel layers are sandwiched between transparent thin-film transistor layers, which contain the circuitry that supplies the tiny electrical currents that cause the pixels to light up.
The OLED pixel material itself is electroluminescent — self-illuminating — so there’s no need for a backlight, with all of its limitations. Since there’s no backlight, when electricity is switched off to a pixel, it turns completely off — goes black. This ability to display absolute black is a first for flat-panel TVs, and it enables OLED TVs to achieve virtually infinite picture contrast.
And how does OLED look?
So, does OLED live up to the hype? Actually, it does. Images seem to pop off the screen with effortless clarity and vibrancy. OLED pictures have the color accuracy and wide viewing angles of the best plasma TVs, plus the brightness and energy efficiency of an LCD. In addition to spectacular picture quality, OLED makes it possible to build TVs that are much thinner and lighter in weight than any previous TVs. LG's 55" OLED is only 1/4" thick at its thinnest, and weighs just 38 lbs.!
Although OLED panels can be made flat like conventional LCD and plasma TVs, the first OLED TVs from Samsung and LG both feature screens that are gently curved, which creates an even more striking look. The curved screen also seems to reduce screen reflections a bit.
Samsung OLED HDTV
The 55” KN55S9C uses Samsung's "Real OLED" technology: red, green, and blue sub-pixels, with no color filters. This is a 3D TV with a difference: Samsung’s unique Multi View feature allows two people to watch different shows on the same screen at the same time!
LG OLED HDTV
LG’s 55” 55EA9800 is the world’s only THX® certified OLED TV. You get an accurate picture that's as close as possible to what the studio intended. LG's 4 Color Pixel technology adds a white sub-pixel to the conventional three colors to enhance both color range and brightness.
These are the first OLED HDTVs available in the U.S., but based on their spectacular performance, it won't be long before more OLED TVs begin to appear.