The current generation of the sixties and seventies have members who have already worked in Hungary with so-called punch card computers, such as former engineering students at the Budapest University of Technology, with whom flashing lights let them know if punching was successful or if he had to stop tiring again. operation.
This is how contemporary computers, which filled entire rooms or even entire buildings, could only communicate with users in this way, with no trace of needle-sharp, 4K, or even higher-resolution panoramic monitors, or even smartphones that produce cinematic image quality. Keep us on a short time travel, let’s go through the evolution of displays!
Aunt Cathode
Although the user interface was really only flickering lights for the benefit of punch card machines, towards the middle of the last century there were already plenty of TV screens, as the first TV broadcast took place on September 7, 1927. Of course, this was only a single straight line at the time, but it was a huge scientific breakthrough, as until then they could only transmit text in the form of sound or electrical signals.
The first television required the development of an important component, the cathode ray tube (CRT), which was first introduced in 1897, but was not commercially available until 1922. CRT technology has run a huge career, as it was not until the 1990s that plasma and LCD screens appeared, which pretty slowly pushed the big predecessor out of the market. The essence of CRT is that an electron beam scans a phosphor-coated “projection screen” several times per second, and the flash of colliding electrons creates the visible image.
This is because the dominance of CRT screens could not be broken for a long time by plasma technology, the essence of which is to excite cells containing tiny ionized gas with an electromagnetic field, which produces a plasma that emits light. The first plasma screen was introduced in 1964, but the technology proved to be extremely expensive, even in the twentieth century. towards the end of the century. It is memorable that when one of the large shopping malls in Hungary opened in 1999, one of the electronics store chains offered a plasma TV, for which a car worth HUF 1 million was given as a gift.
LED and OLED
However, plasmas were soon displaced by LED displays, although it is also true that the first LED screens were born as early as 1968, after Nick Holonyak, a General Electric employee, created the first light-emitting diodes (LED stands for light-emitting diode). ). Interestingly, for a long time only red and green LEDs existed, the development of LEDs that emitted blue light had to wait until the 1990s, when Professors Akasaki Izamu, Amano Hirosi and Nakamura Sudji succeeded in making a scientific breakthrough for which they also received the Nobel Prize in Physics. not to mention being embedded in the great display revolution.
Without the development of LEDs, we would not have been able to come up with one of the best image quality technologies available today, OLED. In these tiny diodes, organic matter provides light emission. The first OLED prototype appeared in 1987, but the technology began to spread in the early 2000s, and today it has become the most popular solution for a variety of displays – TV, monitor, smartphone.
What makes OLED better than LCD?
There are few really good comparisons on the internet, however, ASUS is dedicated website they gathered in a simple and straightforward way what significant differences there are between the OLED displays used in ASUS laptops and the laptops fitted with the LCD display, which is slowly becoming an old school.
The most striking difference is the color gamut that the light emitted by each pixel allows. For most LCD laptops, only 50-60 LEDs illuminate the screen from below, giving it a tired, faded color. In contrast, ASUS OLED displays display vivid and true-to-life colors. In the language of numbers, this means that while an LCD’s so-called sRGB is 62.5 percent, ASUS OLED displays are 133 percent powerful. This is most striking for black, as black is displayed on OLED screens by turning off specific pixels. This allows the so-called “true black” color to be displayed, as opposed to LCDs, where the backlight remains perceptible. It’s no coincidence that ASUS technology has been certified under the so-called VESA standard to display true black.
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Another advantage of ASUS OLED displays is the amazing 1,000,000: 1 contrast ratio, which produces amazingly sharp and detailed images even in darker image sequences.
The quality of the manufacturer’s OLED displays is also indicated by the fact that they can display the color gamut seen in the most modern cinemas on portable devices, using up to 1.07 billion color tones. This is guaranteed by its certification, Pantone certification, issued by one of the world’s top companies. Pantone is a well-sounding name in the graphic, printing world, which stands for perfect color fidelity.
ASUS engineers have not only thought about the excellent image quality, but also the health of the users: compared to traditional LCD panels, the spread of OLED technology is indeed a big step forward in terms of maintaining health. We have read many times about the blue light emitted by displays in recent years that it can cause visual discomfort and negatively affect sleep quality after prolonged periods of time. Péter Daghistani, ASUS Communications Specialist, highlighted: “Compared to the average LCD display on the market, ASUS OLED laptops emit up to 70% less harmful blue light. This can be especially important for today’s trends as users sit in front of a machine at a younger age and spend more and more time in front of the display. In the case of a young child, up to three times as much blue light can pass through the retina as in an older user and this can have even more serious consequences in the long run ”.
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Certification by ASUS, two internationally recognized professional certification companies, TÜV Rheinland and SGS, also proves that OLED displays are much more gentle on the eyes.
Gamers and those looking for a high-quality visual experience in particular will appreciate the ultra-fast 0.2 millisecond response time of ASUS OLED panels, which is fifty times faster than laptops with LCD displays. In practice, this means that moving images, especially fast-moving images, appear blur-free and sharp on ASUS OLED displays. In addition, when browsing text content, blur-free scrolling will come in handy for a better reading experience and is eye-saving.
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State-of-the-art technology for the widest audience
Obviously, like all “new” technologies, OLED was the first to have the privilege of machines with more serious price tags and, in parallel, outstanding in some category over the past few years. However, this trend is also evolving and these solutions are available to an ever-widening range of people.
“From the beginning, our goal has been to reach a wide range of users with this truly visible technology. This year, we managed to achieve this, as we were able to incorporate OLED displays into a number of categories that are very popular in Hungary, while retaining the series-specific benefits that have been popular so far, ”says ASUS Communications Specialist.
And what to expect in the near future? The new members of the Zenbook series, the market leader in the premium ultrabook category, will soon be available in Hungary. And for the professional segment, the ProArt Studiobook Pro 16 OLED models take the next step, as the 4K OLED HDR display allows 3D designers, graphic designers and video professionals to work in the best possible visual conditions.
The content was commissioned by ASUS Hungary and produced by HVG BrandLab. The editorial staff of HVG weekly and hvg.hu did not participate in the creation of the article.
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