Do you want to buy a tv more updated? Have you already started your search, but still don’t know which one to choose? Don’t worry, we have come to advise you. Currently there are tvs with various technologies that define its projection and quality, but some of the more popular ones are OLED and LED. Surely in your search you have heard of them. The big question is do you know which is the best?
Televisions, OLEDS are thin, light and offer an incredible contrast that are unmatched in the market. Although the two acronyms, OLED and LED, they only differ grammatically in a letter, in the action, it is much more than that.
When the tvs OLED came for the first time in 2013, were commended for their black levels are perfect and excellent color, but they had little success, mainly due to their brightness levels, which could not compete with the tvs LED/LCD. Also, there was a huge price gap between televisions OLED (don’t confuse it with QLED) and their counterparts, LED/LCD superior.
However, all that has changed. Tvs OLED are much brighter than before, and their prices have gone down. But the LED tvs still have some clear advantages.
Discover in this guide the strengths and weaknesses of these two technologies of television and what is our favorite.
What is LED?
LED means “light emitting diode” (LED, for its acronym in English: light-emitting diode). It is small in solid state devices that generate light due to the movement of electrons through a semiconductor. Preferred option as the backlight for the LCD screens, the LED may have a much smaller size than the compact fluorescent bulbs, and incandescent, but can be extremely bright. Yes, the LEDS are not small enough to be used as individual pixels of a tv: they are too big for that. That is the reason why the LED is only used as backlight for LCD tvs, with each LED illuminating a small group of pixels.
What is OLED?
OLED means diode organic light-emitting diodes (its acronym in English: organic light-emitting diode). In a nutshell, OLEDS are made of organic compounds that light up when supplied with electricity. This may not seem like a big difference in comparison with the LED, but yes, there are: OLEDS can be extremely thin, flexible, and significantly smaller. In fact, the OLED may be so small that they can be used as individual pixels, millions of which occupy the tv screen, flashing on and off completely independently. Due to this flexibility, when a pixel OLED is turned off, it is completely off, completely black.
So, What is better: OLED or LED/LCD?
Now is the time to compare the two technologies with each other and see how they respond when it comes to aspects such as contrast, viewing angle, brightness and other performance considerations.
Note: Because the tvs OLED are a Premium, we have compared only with LED tvs/LCD the best quality.
The ability of a screen to produce deep blacks and dark is possibly the most important factor to achieve an excellent image quality. The deeper blacks allow for higher contrast and richer colors (among other things), enabling a more realistic image and dazzling. When it comes to black levels, OLED reigns as the undisputed champion.
The LED tvs have LED backlights shining behind an LCD panel. Even with the technology of dimming advanced —which attenuates selectively the LED’s do not need to be turned on to stop— the LED tvs have historically had problems to produce dark blacks, and can suffer from an effect called “light bleeding”, in which the sections most brilliant of the screen create a haze or blooming on dark areas adjacent. Even in the models LED to more advanced, these are the problems persist.
Tvs OLED do not suffer from any of these problems. If a pixel OLED does not receive electricity, does not produce any light and, therefore, it is totally black. It seems like an obvious choice for us.
When it comes to brightness, the LED tvs have an advantage considerable. The LED’s were already good-to be extremely bright, but the addition of qds enables them to be even more brilliant. The tvs, OLED can also be quite bright, and with its darker blacks, the contrast is not a problem.
To put the pixels OLED at its maximum brightness for extended periods not only reduces their useful life, but the pixel takes something more in return to total black. With these considerations in mind, it is important to keep in mind that all modern tvs (OLED, LED/LCD, or other) produce a superior brightness to the appropriate. The considerations are carried forward then to the site or the place on where you will use the tv. In a dark room, a flat OLED will work better, while the LED tvs are unsurpassed in environments with lots of light.
OLED used to rule this category, but thanks to quantum dots —that enhance the purity of the light in the background— it has enabled tvs LED/LCD is developed with precision, brilliance and volume to color, putting them on par with the tvs OLED. Those who are looking for tvs with Wide Color Gamut and/or HDR will find both models with OLED as LED that support these features. The better contrast ratio of OLED will give you a slight advantage in terms of HDR when you see in dark rooms, but HDR on a LED screen/LCD Premium has more advantage, as it can produce colors well saturated levels of brightness extremes, a thing that OLED can’t.
Winner: Not decided yet
Response time and delay
The response time refers to the time it takes each individual diode in the switch from “on” to “off”. With a response time faster, they earn less motion blur and more clarity of image.
OLED, with its diodes smaller than function as individual pixels, just “eject” LED tv / LCD of this competition. The diodes of the LED tvs are not only slower, but are located behind the LCD panel and illuminate a set of pixels, never individual pixels. This causes a general shift slower between the states of “on” and “off”. In fact, OLED currently offers the fastest response time of any television technology, making it a clear winner in this respect.
Angles of vision
I say already: OLED is, again, the winner here. With the LED displays, the best viewing angle is in the so-called dead center, and the quality of the image decreases —both in color and contrast— as you move toward each side. While this differs between the different models of television, is something that always happens. LG have produced an LCD panel , known as IPS, which has a slightly better performance in angle the LCD panels of type GOES, but still can’t compete with OLED.
The OLED displays can be viewed without degradation in viewing angles quite drastic: up to 84 degrees. In comparison, the LED tvs have been tested to allow an angle of view of 54 degrees (in the best of cases). OLED has here all the advantage.
OLED has had to go a long way in this category. When the technology was still incipient, the OLED displays were often eclipsed by the enormous LED screens/LCD. As the manufacturing OLED has improved, the number of monitors OLED respectably large has been increased, but are still small in comparison with the LED displays, which can exceed 100 inches in size, and more.
LG ensures that you’d have to look at their tvs OLED 5 hours a day for 54 years before its brightness drops to 50 per cent. Whether or not that is true remains to be seen, because televisions OLED have only been with us since 2013. For this reason —and only for this reason— we give this category to LED/LCD. It pays to have a proven track record.
Winner: LED/LCD (for now)
Screen Burn-in (Burning display)
We include this section reluctantly, both because burn-in is a misnomer and, for most people, this effect will not be a problem.
The effect of burn-in or burn-in screen is the must to the days of CRT TV, when the extended display of a static image where that image “burned” into the screen. What was actually happening was the phosphors that they coated the back of the tv screen shone for long periods of time without rest, causing these desgastasen and create the appearance of a recorded image. We believe that this, in the “jargon” in which we now are imbued with, it should call “burnt”. Sure that we understand.
The same problem is in play with the tvs, OLED and plasma, because the compounds that light up may also degrade with time. If you use a pixel for a long time and strong enough, it will darken prematurely ahead of the rest of the pixels, creating a dark print. However, in reality, it is not very likely that this causes problems to anyone, because you’d have to abuse the tv intentionally for this to happen. Even the “bug” (logo graphic) that use certain channels disappears with sufficient frequency, or it is clarified in order to avoid these problems. You’d have to watch ESPN all day every day (for many days) in your configuration as bright as possible to cause any problem, and even so, it is very likely that this will happen.
That said, the possibility is there, and it must be taken into account. As tvs LED/LCD are not susceptible to burn, winning this fight by technicality.
The panels OLEDS are extremely thin and do not require a backlight. As such, the tvs OLED tend to weigh less than the LED tv/LCD, being considerably thinner. They also require less energy, making them more efficient.
This category, a while ago, it would have been won easily by tvs LED/LCD, but televisions OLED have advanced in the price-performance ratio. However, still today, the tvs OLED are tvs Premium. And point. Practically, there is a level of low budget or mid-range OLED. LED tvs, however, can vary in price from a few hundred dollars to several thousands, making them in general more accessible than the OLED. While the prices of the LED tvs of higher quality are around almost the same price range that the OLED (remains of qualities comparable), when judged only by the price and nothing more for the price, the LED tvs are quite affordable.
We have a winner!
In terms of picture quality, OLED exceeds LED/LCD, despite the fact that this latest technology has experienced many improvements lately. OLED is also lighter, thinner, consumes less energy, offers the best angle of vision and, although still a bit more expensive, has considerably decreased prices. What once was a difficult decision, it has gradually become a decision much more easy: OLED is the technology of tv top today. If this article were only about the price, LED/LCD would win, but OLED has done a good way and in a very short time, so he deserves the crown.
Final winner: OLED
*Updated by Maria Teresa Lopes on 07 September, 2018.
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