What is a QLED Smart TV?
Table of Contents
The smart TV market has a high diversity of brands and models of devices, and one of the main questions when choosing your television is the type of fabric. Currently, in addition to the LED (the most common), there are QLED smart TVs (and its variations) and OLED.
There are some differences between each of them, which can cause some confusion for the consumer. In this article we will explore the universe of smart TVs QLED, an evolution of LED screens that offers a greater range of colors, with high fidelity, through the addition of a layer of quantum dots. Interested? Find out more below!
How does a QLED TV panel work?
A TV panel QLED (acronym for Quantum Dot Light Emitting Diode, or Light Emitting Diode with Quantum Dots in free translation) works using a combination of an LED screen with quantum dots to improve image quality. The base is similar to that of traditional LED TVs, but with an additional layer of quantum dots that significantly improves the color reproduction and brightness.
Like a conventional LED TV, QLED TV also has a backlight panel (backlight) that provides the light necessary to form the images on the screen. However, in this more advanced model, the blue light emitted by the LEDs passes through a layer of quantum dots, which are tiny semiconductor particles that emit specific colors when light passes through them. Depending on the size of the particles, they emit light in different wavelengths, corresponding to different colors of the visible spectrum.
The quantum dot layer converts the blue light from the LED backlight into red and green light, while the blue light also passes through the layer to form the blue color. This combination of red, green and blue (RGB) colors is used to create the images on the screen. The use of quantum dots allows for much greater color accuracy and brighter brightness compared to traditional LED TVs, resulting in superior picture quality.
Additionally, quantum dots are very efficient at converting light, meaning they can produce vibrant colors without needing to increase the energy consumption. This not only improves image quality, but also contributes to better energy efficiency. As a result, QLED TVs are able to achieve higher brightness levels, which is especially beneficial for viewing content on HDR (High Dynamic Range), which requires a wide range of brightness and contrast.
Finally, the durability of quantum dots is another advantage. They are resistant to degradation (or burn-in), which means image quality remains consistent over time. This feature, combined with excellent color accuracy and enhanced brightness, makes QLED TVs an attractive choice for those looking for a high-quality, long-lasting viewing experience.
How are QLED TVs better than traditional LED TVs?
In a very simple way, QLED TVs have superior image quality than conventional LED TVs. See in detail how the quantum dots promotes image improvement:
- Vibrant Colors and Accuracy: Quantum dots, which emit light in specific colors when illuminated, allow for much more accurate and vibrant color reproduction, reaching 100% of the RGB color space. This results in a wider, more realistic color spectrum compared to conventional LED TVs.
- Superior Shine: QLED TVs can achieve higher brightness levels than traditional LED TVs. This is especially advantageous for content in HDR (High Dynamic Range), which require a greater range of brightness to display details in both light and dark areas of the image.
- Enhanced Contrast: With higher brightness and more accurate colors, QLED TVs offer better contrast (especially Neo QLED models), which improves the perception of details in the image, especially in dark or very bright scenes.
- Energy Efficiency: Quantum dots are highly efficient at converting light, allowing QLED TVs to produce vibrant colors and intense brightness without significantly increasing power consumption. This makes QLEDs more energy efficient compared to conventional LEDs.
Types of QLED TVs
As QLED smart TVs They have some variations that go beyond marketing, bringing technical elements to further improve image quality. Understand the differences between QLED, NeoQLED e QENG:
QLED
QLED is the general name for technology that uses quantum dots to increase color fidelity in LED screens. Televisions QLED are common in brands such as Samsung, TCL and also LG, and can be found in sizes starting at 30 inches.
TVs QLED are capable of delivering the color volume in its entirety, that is, a 100% guarantee of more vibrant and firm colors. According to Samsung, an expert on the subject, the QLED achieve more intense brightness, thanks to quantum dots, capable of emitting a spectrum of 1 billion colors.
NeoQLED
More advanced than QLED, NeoQLED da Samsung These are models that receive a backlight panel with mini LEDs, that is, smaller lighting LEDs, but in greater quantity.
By using this lighting arrangement, the smart TV can better control the brightness, balancing the light and dark colors on the screen and increasing the contrast, getting close to the perfect black seen on OLED screens. This technology is also present in the line of smart TVs from TCL, with the name of QLED Mini LED.
The technology NeoQLED was created to revolutionize the image standards delivered by television sets. When replacing LEDs conventional by Mini LEDs, smart TVs that use this technology promise to deliver more accurate blacks, in addition to perfect brightness, responsible for making content more realistic.
Very suitable for the gamer public, the technology NeoQLED from Samsung is present in devices such as the Neo QLED Gaming TV QN90C. Made to meet all the needs of gaming fans, it promises 4K image quality, providing much more brightness and contrast.
QENG
The technology QENG is owned by LG, and combines other technologies: QLED, Mini LEDs and Nanocell. The acronym means Quantum NanoCell Emitting Diode, or Light Emitting Diode with NanoCell in free translation.
In addition to the advantages we have already seen for QLED screens with mini LED backlight, the technology Nanocell from LG adds a nanoparticle filter that helps to display even more vibrant colors and increase the screen's field of vision, without loss. Furthermore, these screens can feature up to 2.500 brightness control zones, reaching a contrast of 1.000.000:1.
QLED vs OLED: which is better?
Both QLED as OLED These are technologies present in televisions sold on the national market. To the Smart TVs who use technology OLED They have a panel of points that are individually illuminated, which allows some control over how the contrast appears in the image.
already the technology QLED stood out in the market for some advantages, which include brighter and more vivid images and the promise of brands like Samsung to deliver 100% of the color volume.
Both technologies have advantages and disadvantages, which can be seen in the following table:
QLED
Benefits
Greater color range;
Greater durability;
Less likelihood of burn-in effect;
Disadvantages
Lower contrast levels (may present grayish blacks);
Smaller viewing angle;
Greater response time.
OLED
Benefits
High level of contrast (infinite black);
Wider viewing angle and more vibrant colors;
Shorter response time.
Disadvantages
Shorter useful life;
Less shine.
Samsung developed another technology, the QD OLED. This hybrid model combines the impressive qualities of the panels OLED, in addition to presenting more brightness and deep colors, thanks to quantum dots.
Televisions that use technology QD OLED They generally present surprising levels of contrast, in addition to perfect blacks. One of the characteristics of these panels is the ability to deliver very bright images, at levels never seen in previous technologies.
Recommendations for QLED smart TVs on the market
There are several models of smart TVs available on the market, and this can raise doubts among those who want to purchase the best screen to use on a daily basis. The technology QLED It is present in brands such as Samsung and TCL and the models meet different needs.
Some models appear as great options and the search for the perfect television takes into account many factors that can vary, depending on what you want to try. Some characteristics are important and must be taken into account, such as size and arrangement in the environment, in addition to other technical resources.
Samsung QLED 4K 55” Q70C
The Samsung model uses quantum dot technology and, like the panels QLED, it promises to deliver 100% of the color volume. This model has a Quantum 4K processor, in addition to the Samsung Gaming Hub, ideal for those who want to experience high performance in games.
Its slim design brings elegance to this model, which has a good refresh rate, which allows for faster responses, with no frame drops. Available in 55 inches, it is also possible to find it in larger sizes.
The Samsung QLED 4K 55” Q70C is available on Samsung's official website for R$3.998,55.
| Córdoba | Samsung Q70C |
| Screen size | 55" |
| panel frequency | 120 Hz |
| Resolution | 3,840 x 2,160 |
| Processor | How much 4K |
| image resources | HDR HDR 10+ Image Upscaling with AI HLG Dual LED Contrast contrast enhancement Smart calibration |
| Speaker power | 20 W |
| audio resources | Anti-noise sound adaptive sound sound sync Bluetooth |
| Adjustable | HDMI 4 2 USB 1 Ethernet 1 digital audio output 1 AV input |
| Smart | tizen smart tv Remote voice control Integrated Alexa Smart Things Audio Mirroring Multitelia |
| Design | Air Slim |
| Dimensions and weight | 1399 x 846 x 148 mm 15.3 kg |
TCL C645 QLED
Another company that bets on televisions with technology QLED, TCL presents its C645 QLED model to the market. This smart TV is available in sizes 50, 55 and 65 inches. The model promises excellent image quality, being able to offer a higher range of colors, around 1 billion possible colors.
This television has HDR10 + (High Dynamic Range), a standard that offers a superior experience to other televisions, with brightness, shadow details and vivid colors that are impressive.
Furthermore, the TCL C645 has technology Dolby Vision, capable of providing the experience of being in a theater, with fascinating scenes unfolding in front of the user. Another component is the sound system, which uses Dolby Atmos, providing three-dimensional audio.
The TCL C645 QLED is available on the official TCL website and costs R$2.549,00.
| Córdoba | C645 QLED |
| Brand | TCL |
| Screen size | 65" |
| Refresh rate | 60 Hz |
| Operational system | Google TV |
| Audio | Dolby Atmos DTS-HD and Virtual-X |
| Speaker power | 20 W |
| Channels | 2 |
| Screen resolution | 3840 x 2160 |
| image resources | 4K HDR 10 HDR 10 + Microphone Dimming |
| Adjustable | Bluetooth Digital audio output USB HDMI 3 freesync |
| Wi-Fi | 2.4G / 5G |
| Alexa | Yes |
| packaging dimensions | 1648 x 999 x 154 |
| Net weight | 15.4 Kg |
Samsung Smart TV 55″ Neo QLED 4K QN85C
The Samsung model is a complete device, which promises to deliver the best experience possible. The sophisticated device, available in 55 inches, uses 40 Mini LEDs that replace the LED conventional. As a result, the smart TV guarantees a more precise black color, as well as perfect brightness, making the content more real. Another feature is the fully immersive sound experience, guaranteed by the Dolby Atmos.
The super-thin screen is part of a bold design, with visible edges. The 4K image quality is also an attraction of the television, which thanks to Samsung technology is capable of emitting 1 billion colors.
If you want to take advantage of the smart TV to play your favorite games, it has a 120Hz refresh rate, providing quick responses without compromising the quality of the game. The Samsung QN85C also has the Samsung Gaming Hub, a platform that guarantees access to more than 1000 available games.
The Samsung QN85C is available on Samsung's official website and costs R$5.651.
| Córdoba | Samsung Neo QLED QN85C |
| Screen size | 55" |
| panel frequency | 120 Hz |
| Resolution | 3.840 x 2.160 |
| Processor | Neural Quantum Processor 4K |
| image resources | HDR HDR 10 + HLG Mini LED Panel Microphone Dimming |
| Dolby Atmos | Yes |
| Modules | 60 W |
| Smart | tizen smart tv Integrated Alexa Samsung TVPlus Smart Things Screen mirroring Audio Mirroring |
| gaming hub | Yes |
| Adjustable | HDMI 4 2 USB ethernet Bluetooth Wi-Fi digital audio output |
| packaging dimensions | 1448 x 833 x 172 mm |
| Net weight | 17.2 Kg |
Smart Gaming TV 65” Neo QLED 4K QN90C
The QN90C is Samsung's model created for the public gamer. It has a refresh rate of 144Hz, which brings faster responses, ensuring the quality of graphic details in games and bringing scenes with better resolution.
The technology NeoQLED guarantees the emission of very vibrant colors, being capable of emitting 1 billion colors. The user can also try playing their favorite game on different screen sizes (21:9 or 32:9, for example).
With images in 4K resolution, the smart TV is equipped with the processor developed by Samsung, which among its innovations, is equipped with a IA to ensure the best possible image quality.
The Samsung Smart Gaming Neo QLED 4K QN90C is available on the Samsung website and costs R$9.475,35.
| Córdoba | Samsung Neo QLED QN90C |
| Screen size | 65" |
| panel frequency | 120 Hz |
| Resolution | 3,840 x 2,160 |
| Processor | Neural Quantum Processor 4K |
| image resources | HDR HDR 10 + HLG Image upscaling with AI Quantum Matrix Contrast Microphone Dimming |
| Dolby Atmos | Yes |
| Modules | 60 W |
| Smart | tizen smart tv Integrated Alexa Smart Things Multitelia Audio Mirroring |
| Game | Super ultra wide screen Game motion plus surround sound gaming hub |
| Adjustable | HDMI 4 2 USB Ethernet digital audio output Wi-Fi Bluetooth |
| packaging dimensions | 1622 x 935 x 185 mm |
| Net weight | 24.2 Kg |
Samsung Smart TV 65″ Neo QLED 8K QN800C
This Samsung model has the Mini LEDs, responsible for high levels of brightness and contrast. The model is a highlight of the Samsung series, and has other features.
The Neural Quantum processor guarantees 8K resolution, bringing details that transform the entire scene. The model has more than 33 million pixels, responsible for reproducing sharper contours, more depth and textures with more details.
The QN800C 65” also guarantees great game play, with quick responses thanks to the device’s 120Hz refresh rate. This model is recommended for people who want to invest a little more for image quality.
The Samsung Neo QLED 65” 8K QN800C is available on the Samsung website and costs R$13.299,05.
| Córdoba | Samsung Neo QLED QN800C |
| Screen size | 65" |
| panel frequency | 120 Hz |
| Resolution | 7.680 x 4.320 |
| Processor | Quantum Neural 8K |
| image resources | HDR HDR 10 + Image Upscaling with AI HLG Contrast Quantum Matrix Pro Ultimate 8K Dimming Pro contrast enhancement |
| Dolby Atmos | Yes |
| Modules | 70 W |
| Smart | tizen smart tv Integrated Alexa Smart Things Multitelia Audio Mirroring |
| Game | Super ultra wide screen Game motion plus surround sound gaming hub |
| Adjustable | HDMI 4 3 USB Ethernet digital audio output Wi-Fi Bluetooth |
| packaging dimensions | 1625 x 947 x 210 mm |
| Net weight | 22.5 kg |
Smart TV 65″ QLED 4K The Frame 65LS03B
In terms of visual innovation, The Frame is the only representative in the smart TV market that is concerned with truly integrating into the environment in which it is located.
The model was created to function as a work of art. To achieve this, it was developed with customizable frames, which puts it on the same level as a painting hanging on the living room wall, for example.
with technology QLED 4K, Samsung The Frame guarantees vibrant and strong colors in scenes. Another strong point of this smart TV is the presence of the anti-glare Matte screen, which works by eliminating light interference in the environment.
The Samsung The Frame 65” QLED 4K smart TV is available on the Samsung website and costs R$8.197,55.
| Córdoba | Samsung QLED The Frame LS03B |
| Screen size | 65" |
| panel frequency | 120 Hz |
| Resolution | 3,840 x 2,160 |
| Processor | How much 4K |
| image resources | HDR HDR 10 + HLG Image upscaling with AI Dual LED Contrast Movie mode |
| Modules | 40 W |
| audio resources | Dolby Digital Plus Anti-noise sound 2.0.2 channels Bluetooth |
| Smart | Tizen Integrated Alexa Smart Things Multitelia |
| Design | Slim Frame |
| Adjustable | HDMI 4 2 USB Ethernet Wi-Fi Bluetooth |
| packaging dimensions | 1614 x 950 x 191 mm |
| Net weight | 22.4 kg |
LG QNED80 75” 4K Smart TV
The technology QENG is developed by LG and promises surprising results with the union of quantum dots and technology Nanocell. Therefore, this model is capable of delivering purer colors, in addition to excellent black control, resulting in excellent contrast, with the presence of sharp and more vibrant colors.
This model is highly recommended for those who want a cinema experience at home. The α7 AI 4K Gen6 processor is the top of the line and the most advanced in technological terms and delivers a powerful experience.
The model promises to guarantee a cinema experience at home. One of the attractions in the image is the presence of the HDR10, capable of improving the contrast and clarity of the displayed content.
The LG QNED80 is available on the LG website and costs R$9.499,00.
| Córdoba | LG QNED80 |
| Screen size | 75" |
| Panel type | 4K QNED |
| panel frequency | 120 Hz |
| Resolution | 3.840 x 2.160 |
| Processor | a7 AI 4K Gen6 |
| image resources | upscaler AI MotionPro HDR HDR 10 + Local Dimming |
| Modules | 20 W |
| audio resources | 2.0 channels Clear Voice Pro Bluetooth AI sound lg sound sync |
| Adjustable | HDMI 4 2 USB Ethernet Wi-Fi |
| packing dimension | 1.820 x 1.115 x 200 |
| Net weight | 33 Kg |
LG QNED85 Mini LED 75” 4K Smart TV
The LG model is part of the Asian manufacturer's main line of smart TVs. The technology combines Quantum Dots with NanoCell and Mini LEDs, a combination that guarantees the display of incredible colors on this type of panel.
The Precision Dimming present in this model is responsible for bringing better contrasts and improved brightness. The result is that the LG QNED85 delivers clear and natural images, transforming the experience at home when watching series and films.
A device on the television ensures the display of previously unseen details. LG guarantees that this model can generate images 64 times better than previous models, with improved detail in shadows and more pronounced definition in dark areas.
Ideal for games, the LG QNED85 has the AMD FreeSync Premium, responsible for reducing crashes when running games. Furthermore, the sound experience is guaranteed with Dolby, which stands out indoors.
The LGQNED85 Mini LED 75” 4K Smart TV is available on the LG website and costs R$12.499,00.
| Córdoba | LG QNED85 |
| Panel type | 4K QNED Mini LED |
| Screen size | 75" |
| panel frequency | 120 Hz |
| Resolution | 3.840 x 2.160 |
| Processor | a7 AI 4K Gen6 |
| image resources | upscaler AI MotionPro HDR HDR 10 + Dolby Vision Precision dimming |
| Modules | 40 W |
| audio resources | 2.2 channels AI SoundPro Bluetooth lg sound sync |
| Adjustable | HDMI 4 2 USB Ethernet Wi-Fi |
| packaging dimensions | 1.820 x 1.115 x 200 |
| Net weight | 41,9 Kg |
Sources: SamMobile, Samsung Newsroom, Samsung, G1
reviewed by Glaucon Vital in 9 / 5 / 24.
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