A large number of technologies and marketing chips makes the choice of TV in the near future. There are options that have properties on the quality of the image on the display, its brightness and saturation.
the main parameter that you need to decide before choosing a modern TV is the type of its matrix. Now they note the most common technology for the production of screens, we will analyze their deviations and highlight the best ones.
How TV matrices evolved. From LCD to AMOLED
LCD device and LED matrix
Another 15 years ago LCD-technologies (Liquid crystal display). Liquid crystals or just LCD panels needed additional backlighting, which needed to be illuminated with cold cathode fluorescent lamps.
Probably, diode arrays also appeared due to the increase in the production of diodes. Abbreviation VEL (Light-emitting diode) means conventional LED or diode array. When a current is applied to each pixel of such a matrix, it starts to glow. In LED diodes, inorganic crystals are used, the composition of which is determined by the color of the glow. By themselves, inorganic crystals do not emit light and require additional illumination.
OLED matrix device
The logical evolution was the emergence of technology OLED (organic LED). Organic crystals are already used here, which more actively study light when a current passes through them. But the problem with the first OLED was low power efficiency. Energy was applied immediately to entire strips of diodes to activate one or more points at the intersection.
This technology is the most significant and defined in production. It practically occupied the market of LCD and plasma panels. Fast response time, wide color gamut, high contrast and compact size put other technologies to the fore. OLED manufacturers have long overcome the problems of the first versions, burn-in screens, fading of images and reduction in peak brightness are a thing of the past.
AMOLED matrix device
Most modern gadgets, including our beloved iPhone, use OLED matrices.
The peak of technology development at the moment AMOLED-matrices. From already familiar OLED panels, they require active matrices. This is how the prefix AM stands for (active matrix). Each diode in such a matrix emits light and does not need additional illumination.
Now let’s figure out what is QLED.
What is QLED in TVs?
QLED matrix device
QLED (Light emitting diode with quantum dots) is not some kind of branch in the development VEL-matrix or equivalent OLEDpatented by another company.
This is a fundamentally different type of matrix device, which combines the advantages LCD And VEL. Instead of sampling crystals based on individual doses, which, when exposed to current or light, begin to glow. The color of the dots depends on the material available and its size. For example, a larger dot will emit a red glow, while the smallest one will emit a blue glow.
Such points are immediately sound illumination, and the emitter of the required color.
From a technological point of view, more QLCD. But marketers are extremely fond of and promoted the acronym VELthat they could no longer return to the game LCD.
How is QLED different from OLED? Many benefits
This technology has a number of undeniable advantages.
high brightness. No other technology comes close to, most likely, the QLED matrix. And this, in turn, allows you to make the picture more contrasting and juicy.
energy efficiency. In studies with other technologies, the QLED matrix requires 2-5 times less energy to operate.
Durability. The service life of the quantum surface is longer than that of the OLED matrix. Quantum dots do not burn out when a static image is constantly displayed like diodes.
production cost. QLED screens are half the size of an OLED matrix. This allows you to equip high-quality screens even with models of devices in the middle price segment.
QLED, in short, is the future of most TVs. This technology solves the problem of already existing LCD models and is related to the problems of OLED and AMOLED matrices.
What QLED TV in Russia can be bought inexpensively?
A few years ago, QLED technology was used only in the flagship models of some manufacturers. But now such formations are also in TVs of the middle price segment.
For example, in the new line Sberbank there are three QLED TV models with diagonals at once 50″, 55″ And 60″. All devices are authorized 4K Ultra HDthat is 3840 × 2160 dots.
Other indicators correspond to the standard, worthy for home TV. Screen brightness is 350 cd/m² (at the bottom and middle) and 400 cd/m² in the older model, the contrast is 5000:1.
You can’t meet TVs without smart stuffing now. So here there is a complete system for viewing on-air TV, online cinemas and other sources with connected media. This is an open platform already well known to Russians from SberBox and SberBox Top gadgets – Salyut TV. You can remove the expense using the remote control, through a proprietary application on a smartphone, or simply by voice.
A big plus in the current realities is that you can always install the program or game you need. In the new version of the software, the developers have added the ability to install any Android applications in APK format.
So when buying such a TV, an additional TV set-top box definitely does not happen.
The cost of QLED models Sber starts from 34 990 rubles for a 50 inch device. The older model with a diagonal of 65 inches will cost 55 990 rubles. You can find a suitable QLED TV or other device on the SberDevices website.
Source: Iphones RU
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