QLED and OLED are two screen technologies that offer different advantages and disadvantages. Why an OLED TV should deliver the more intense colors and a QLED device scores in terms of brightness, you can read here.
The terms QLED and OLED refer to two screen technologies that could hardly be more different. Both technologies are closely associated with one manufacturer each. OLED screens for TVs were exclusively produced by LG for a long time, but other manufacturers now also offer OLED TVs, such as Sony, Loewe or Philips. QLED screens can be found at Samsung, Hisense or Tcl. Read here about the technical differences between QLED and OLED and the advantages and disadvantages of the technologies.
What is QLED?
QLED technology is supposed to be the best that LED screens have to offer, as they are considered to be particularly color- and contrast-rich LCD TVs. It is a further development of LCD screens with so-called “quantum dots”, which lend the name the Q. LCD stands for “Liquid Crystal Display.” Electrical pulses change the orientation of the crystals and the amount of light they let through can be varied. In this way, different colors are created. However, since the crystals do not light up themselves, the so-called backlight is needed. The light is generated by LEDs, which give the LCD TV the name LED TV. The further development to QLED TVs mainly concerns the backlight, because in QLED TVs another layer, the quantum dots, is placed over the already existing LED filters. They ensure that the TV can reproduce brighter and more color-intensive pictures.
- Brightness: Thanks to the Quantum Dots, the picture of QLEDs can be even brighter than that of LED screens.
- Contrast: This also increases the contrast because the diodes do not lose any of their color even with more brightness.
- Energy consumption: Since the backlight is permanently lit, the energy consumption of QLED screens can be higher than that of OLEDs.
QLED TV: Samsung Q60R
While there are now several manufacturers of QLED TVs, Samsung is particularly well-known and popular. The manufacturer advertises that Samsung’s QLED sets can upscale the picture to an impressive 8-K with impressive computing power and artificial intelligence. However, the 8-K capable TVs are expensive to buy. If you’re looking for a good entry-level QLED TV, you should check out the Samsung Q60R. The TV features QLED technology and should also convince gamers with a very short latency. The Ambient mode is supposed to adapt the TV pleasantly to the surroundings. The Quantum Processor 4K is supposed to continuously optimize picture and sound with the help of artificial intelligence. The smart TV can also be controlled via voice command and is compatible with Alexa and Google Assistant.
What is OLED?
The most important difference between a QLED and an OLED TV is that OLED does not need a backlight, because it is the pixels themselves that light up. They consist of millions of tiny light-emitting diodes made of organic material – which explains the “O” in the name, it stands for the English word “organic”. An organic light-emitting diode is a luminous thin-film component made of organic semiconducting materials. The technology is used in TV screens because organic light-emitting diodes can be produced cheaply using thin-film technology. Unlike QLED screens, the black is supposed to be particularly intense because it is not brightened by the backlight.
- Contrast: OLED screens are supposed to deliver a high-contrast picture, which comes from the rich blacks. This is due to the self-luminous OLEDs and the lack of backlight.
- Response time: OLED TVs are said to have a faster response time than QLED TVs. This means the diodes take less time to turn on or off. Therefore, a fast response time ensures that the picture looks sharper.
- Viewing angle: The picture is said to be easy to see from almost any angle in the room, since the light is emitted directly by the diodes instead of being blocked by a backlight, as is the case with QLED or LED.
- Energy consumption: Since no backlight is used that has to be permanently lit, the energy consumption for OLED TVs is lower than for QLED screens.
OLED TV: LG OLED55B9SLA
There are various OLED TVs from LG that differ in terms of features and price. The OLED55B9SLA model is equipped with the powerful α7 Gen2 processor, which is supposed to optimize picture, sound and brightness automatically. The device also features Dolby Vision and Dolby Atmos as well as HDR technology, so contrast and colors are supposed to be dynamically adjusted. A 4-K resolution is supposed to enable a sharp picture and the TV is equipped with Google Assistant as well as Alexa. Interesting for gamers: LG’s OLED TV has a response time of one millisecond as well as a low latency, so decisions can be executed within a very short time.
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