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Home Reference TV When two closely related, similar-sounding acronyms are bandied about, confusion is bound to ensue. Hence, QLED and OLED are causing some consternation among shoppers, and among some online reports, about what the differences are and which technology is superior.Image credit Tom's Guide/LGSince Samsung's QLED TVs came on the scene in 2015, the technology has improved and expanded to other brands, including several of the best TVs. The refinements of the last several years have made it harder to spot the difference in more premium TVs, narrowing the gap between expensive OLED sets and the sometimes more affordable QLED TVs on the market. And as more manufacturers offer quantum-dot-enhanced displays, the confusion between the two technologies will only tested the leading models, including the Samsung Q90 $2,499 and LG C9 $2,796, and cut away the jargon to set the record straight about QLED and OLED technology – and tell you which is are the players?QLED is an abbreviated form of "quantum-dot LED," and while the term is most closely associated with Samsung TVs – as seen on high-end LCD TVs like the Q90 – the technology and QLED name is by no means proprietary. Quantum-dot technology has been around since 2013, and many manufacturers are already using it on new 4K TVs, including Hisense, TCL and Vizio, in addition to sets are essentially a modification or addendum to conventional LCD TVs, which represent the majority of TVs on the Bravia OLED XBR-65A1E OLED stands for organic light-emitting diode, a very different way of creating a picture. The only company currently making large-panel OLEDs for TVs is LG, which offers a variety of OLEDs, including the LG C9 OLED OLED65C9PUA. Other companies with OLED TVs, such as Philips, Panasonic and Sony – including the Master Series A9F – use LG's do they work?Quantum-dot, or QLED, sets use a conventional LCD liquid-crystal display to which they add another layer of quantum dots of a particular size, which in turn dictates the color those dots emit when hit by light from behind. By adding the extra quantum layer, extra colors a wider color gamut can be displayed.Image credit QLED uses a layer of nano-sized quantum dots that emit particular colors when lit. Credit SamsungHowever, quantum-dot LCDs still require a separate backlight to illuminate the display. That light is created by LEDs behind the panel or along its edge, hence the "LED" part of Samsung's acronym. While there are a handful of TVs on the market that use LEDs for display and color, namely Samsung's MicroLED sets, they are far from mainstream, and LED TVs for the moment almost exclusively refer to LCD sets with LED backlighting.Image credit LCD panels require a separate backlight to illumnate the display. Credit LGLG CX OLED vs. Samsung Q90T QLED Which should you buy?OLED, or organic light-emitting diode, represents a completely different kind of display. No backlight is required because the organic pixels emit their own light when activated. So each pixel can be completely turned on or off separately.Image credit OLED panels can turn each individual pixel on and off. Credit SonyWhich is sharper?In technical terms, OLED is theoretically sharper because it can turn on or off each individual pixel. With quantum-dot sets, because there's an afterglow and light leakage behind the LCD layer caused by the separate backlight, it tends to blur the edges around bright or local dimming on LCD sets helps, but some light leaking still occurs. Consequently, we still commonly see halo effects around bright objects displayed on LCD sets from manufacturers ranging from Samsung to OLEDWhich delivers deeper blacks?When it comes to crisp, clear details and accurate picture reproduction, a key element is the display's black levels. Deeper blacks allow for a sharper-looking picture and a more realistic viewing experience. And when it comes to black levels, there is no debate OLEDs are the only sets that can deliver true LCDs – including Samsung's QLEDs – look grayish next to an OLED set. The backlighting system necessary to make LCD and quantum-dot LCD sets work means it is virtually impossible to completely eliminate light leakage. The result is a glowing grey called "elevated black," and depending upon the set, it can extend a centimeter or two around any bright object on the screen, or even cover the screen from corner to corner. The more premium the TV, the better the black levels, but it's a problem we see on even the best QLED OLEDWhich is brighter?Quantum-dot LCD sets, including Samsung's QLEDs, are brighter than OLEDs. They simply put out more light, making them more appropriate for sunny rooms where brightness counts.Image credit QLEDs like this Samsung offer more brightness. Credit SamsungCompare, for example, our recent brightness test results from an LG C9 with 412 nits to our results from Samsung's Q90 with 1,896 nits. On the other hand, if you tend to watch movies in a dimly lit room, OLEDs can seem brighter because of their more pronounced contrast QLEDWhich has better color?Overall, a well-designed quantum-dot LCD or QLED TV can deliver a wider range of colors than an OLED set. They can also be more accurate, with more faithful reds, for example. But the gap between the two technologies is narrowing, with LG's technology division putting some serious R&D behind improvements to OLED color recent tests, the LG C9 OLED earned a Delta-E color accuracy score of compared with Samsung's Q90 quantum-dot TV, which had a score of lower is better. While the Samsung edged slightly ahead, both offer superb color accuracy.Image credit QLED TVs generally deliver a wider range of colors. Credit SamsungNevertheless, how wide a color gamut or how many colors a display can reproduce still varies from set to set. Some OLEDs, such as Sony's Master Series A9F, can match or best quantum-dot sets in this regard. Recent Tom's Guide tests showed that the Sony OLED, for example, was able to produce % of the Rec. 709 color spectrum, while Samsung's QLED reproduced of the same color video content may not reveal the differences, but as more HDR 4K programming becomes available, the nuances will be easier to TieWhat about contrast?While quantum-dot LCDs struggle with inky blacks, they tend to do better at eliciting the subtle changes between dark and light areas. Overall, top quantum-dot or QLED sets have a wider contrast range and can reveal some picture details OLEDs Your Guide to Cable TV Cord-CuttingConversely, it may look to one's eye that OLEDs deliver better contrast because of the striking differences between light and dark areas. However, OLEDs' contrast range is limited to a narrower-frequency range; as it approaches black, an OLED tends to cut off the light completely, eliminating some shadowy picture details in the process. The result is that dark grays and other near-black shades simply disappear into an undifferentiated, inky mass, an effect known as "crushed blacks."Winner QLEDWhat about viewing angles?Most of us don't sit dead center in front of the TV. We're usually at one end of the couch or the other, which means we're looking at the set off-axis. When viewed off-center, LCD TVs such as Samsung's Q60 QLED sets tend to lose some of their luster; colors look washed out or even strangely skewed. On the other hand, OLEDs such as those from LG and now Sony do not suffer from such shortcomings at least not nearly to the degree that LCDs do.Image credit SamsungSamsung's QLED is definitely an improvement in terms of viewing angles over previous generations of quantum-dot sets and most LCDs. However, LG's OLEDs are still far superior in this regard, holding their images, colors and crispness even if you are sitting a little askew in your bean bag OLEDWhat about burn-in?QLED sets come with the same advisories as OLEDs about burn-in and the dangers of letting a static picture sit on the screen for too long just look in the owner's manual. Personal experience indicates that OLEDs seem slightly more susceptible to the problem, especially in the short term, where the ghost of a logo or other icon may appear to linger a minute or two longer on an OLED than on most LCD TieOverall Winner OLEDSo which is better, QLED or OLED? The differences between the two technologies get smaller every day, with QLED TVs getting better black levels and more precise backlight control, and OLED sets boosting the overall brightness and offering more accurate black levels. But put a QLED set side by side with an OLED TV, and you'll see the reality quantum-dot-enhanced TVs can offer a great and slightly more affordable alternative to OLED, but if a pristine picture is what you want, OLED is the way to said all that, our own Kate Kozuch reckons 2021 was the year QLED finally beat OLED; that's down to how Samsung's Neo QLED took on LG's OLED evo. Best Devices to Sling Your Phone or Tablet to a TV ScreenHow to Watch Live TV OnlineThe best soundbars for small and big TVs Instant access to breaking news, the hottest reviews, great deals and helpful tips. John R. Quain has been reviewing and testing video and audio equipment for more than 20 years. For Tom's Guide, he has reviewed televisions, HDTV antennas, electric bikes, electric cars, as well as other outdoor equipment. He is currently a contributor to The New York Times and the CBS News television program. Most Popular
Meskipunya lini QNED, LG tetap menyebut bahwa panel OLED adalah panel dengan kualitas gambar yang paling bagus. Karena memang tiap pixel di panel ini bisa menghasilkan cahayanya sendiri, jadi tak perlu bergantung pada LED untuk menerangi dari belakang panel gambar. Simak Video "Peneliti di Korea Selatan Kembangkan Tinta Tato Elektronik" (asj/fay)Penggunaanpaparan bagi sesebuah skrin itu mengalami evolusi dan inovasi untuk menghasilkan paparan yang lebih memuaskan dan berkualiti tinggi. +60196000508 [email protected manakala bagi OLED atau AMOLED, pixel hitam itu tidak menyala dan ini membuatkan warna hitam itu seakan-akan tiada, dan menyebabkan warna hitam itu menjadi lebih gelapVeja como escolher entre as smart TVs QLED ou OLEDPublicado 23/03/2020 e atualizado 27/01/2021 6 min. de leituraQuem busca uma smart TV com alta qualidade de imagem pode se deparar com uma dúvida na hora de escolher a melhor tecnologia de tela, é melhor optar pelo QLED ou OLED? Isso porque, embora os dois derivem do LED tradicional, existem algumas diferenças entre você está pesquisando uma smart TV para comprar e não sabe qual a diferença entre QLED e OLED, continue lendo o artigo abaixo. A seguir vamos explicar melhor como funcionam as TVs com cada uma das tecnologias e qual delas vence a disputa QLED vs OLED. Confira para aprender a escolher o melhor produto para sabe como escolher uma TV? Confira nosso guia e aprenda o que considerar na hora da que é OLED?Veja como funcionam as TVs OLED Imagem Divulgação/LGAs TVs OLED foram criadas pela LG e revendidas para outras marcas. Este tipo de televisor é o primeiro passo após o LED e se baseia em diodos orgânicos para emissão de luz, sem a necessidade de uma lâmpada traseira de backlight. Ou seja, os pontos na tela se auto iluminam e isso significa mais qualidade de brilho e contraste mesmo em comparação com as TVs QLED.E não só isso dependendo da imagem, eles são capazes de apagar completamente e, com isso, temos preto bem profundo, com tons extremamente escuros. Mas, um ponto a levar em consideração é que o material orgânico desse televisor estraga mais rápido e pode apresentar algum grau de desgaste com o passar do 2021 confira a nova TV OLED 4K da Panasonic voltada para games e que é QLED?Telas QLED têm iluminação controlada por zonas Imagem Divulgação/SamsungEnquanto LG, Sony e Panasonic, entre outras marcas, apostaram na tecnologia OLED nas suas linhas premium para substituir os aparelhos LED, a Samsung surgiu com um outro tipo de monitor, o QLED. O QLED também é um avanço em relação ao LCD e tem o funcionamento baseado em pontos quânticos, que são pequenas partículas condutoras, com menos de um nanômetro de pontos positivos o gasto de energia é bem menor do que as TVs de LED e há excelente visibilidade das imagens em todos os ângulos, mesmo que você esteja sentado de lado em relação à posição da TV. Por outro lado, como a emissão de luz não é feita pelos próprios pontos quânticos, o tempo de resposta é maior e o brilho não é tão intenso quanto o das TVs vs NanoCell a gente explica a diferença entre essas vs OLED qual é a melhor tecnologia de smart TV?Entenda as diferenças entre as telas QLED e OLED Imagem Divulgação/SamsungPara definir qual das duas tecnologias é a melhor, primeiro é preciso entender as diferenças entre OLED e QLED. Por serem orgânicos, os pontos das telas OLED se autoiluminam, não necessitando de uma display de LCD. Isso garante cores mais reais e tons escuros mais puros que no QLED, que usa uma placa de LCD para iluminar os pontos pontos disputa QLED vs OLED, qual dos dois é a melhor escolha? A resposta para isso vai depender do seu objetivo. Se você deseja a máxima qualidade de imagem, com tons pretos super puros e o maior contraste possível nas imagens, o OLED é a opção outro lado, o as TVs QLED têm custo mais baixo e tem menos chance de sofrer com o efeito burn in - quando algumas imagens ficam "marcadas" na tela ao serem exibidas por muito tempo. Com isso, o QLED tem um melhor custo-benefício que o OLED. A verdade é que ambas têm excelente qualidade e a escolha vai depender das suas as diferenças entre as TVs com tela LCD, LED, QLED e modelos de smart TVs QLEDVeja modelos de smart TVs OLEDVocê sabe o que é HDR? Conheça a tecnologia e como ela interfere na qualidade da saber mais sobre novos produtos? Então se liga no nosso canal no YouTube e também na nossa página especial dedicada às smart TVs. aKPh. 128 205 422 297 33 451 195 90 259