The discussion about QLEDs and OLEDs (hereafter abbreviated as Q and O) has long been heard. When the two players compete on the same stage, they can't avoid shifting one another. Noise from marketing purposes also intentionally or unintentionally confuses the reality behind the portrait. The 2017 International Quantum Dot Display Industry Forum, which was held in Beijing on April 13th, pulled the deep-seated noise into calmness and reason. It happened to be that the day before, an OLED TV manufacturer just released an amazing one. 3.6mm thickness OLED wallpaper TV. Take advantage of the trend and "be humanistic" The pattern of Q and O seems to have undergone some subtle changes, consumer demand is changing, and the industry trend is changing. Five years ago, the two may not have much comparability. One is very familiar, and one is high-energy and low-yield. Five years later, In the path of compromise and growth, the situation is very different. Therefore, it is very necessary to revisit "the old things again" today. If the success of the product is defined as the acquisition of a large number of markets, then in addition to discussing the technology itself, we must understand the market demand for technology and the industrial alliance for the adoption of technology. Because in addition to taking advantage of the situation, it is also possible to "be humanistic." In September 2015, the LGD Joint TV Upstream and Downstream Industrial Chain and Research Institute jointly established the "China OLED Display Industry Alliance", which includes traditional TV manufacturers such as LG, Skyworth, Konka and Changhong. In 2017, Sony and Panasonic also released OLED TV products. In the smart phone industry, Samsung AMOLED has been mass-produced for 10 years. In recent years, with the appeal of Apple's mobile phone to OLED, many domestic panel makers have also stepped into the OLED field. OLED has always been the first choice in VR and wearable devices. QLED took over almost all the supporting facilities in the LCD era and also inherited its "affordable" features. Has become the most successful LCD improvement. The largest Samsung did not seem to hesitate to take root in the QLED industry with a large screen display. The color TV manufacturers in the Quantum Dot Industry Alliance include Samsung, TCL, and Hisense. Each and every traditional TV manufacturer is involved in more or less Quantum dot industry, including Sony, Panasonic and so on. Samsung also took the lead in introducing QLED technology to the PC display area. From the "trend" point of view, OLED seems very strong; but from the perspective of the overall market supply and demand, QLED still occupy more than half of the country. The reason is also very simple. The operating strategies of the industry giants often become the wind direction of the entire industry. That's right, it's Samsung’s QLED strategy. This global leader in color TV sales for 11 consecutive years, although not the absolute leader in the technical trend, but every wave of technology, Samsung's shadow is absolutely indispensable. The wave of technological change this time is the competition and compromise between Q and O. What kind of experience is called the ultimate visual experience? Everyone should not think that OLED is a better technology than QLED because it changes the mode of light emission. In fact, both QLEDs and OLEDs represent the development direction of future display technologies, but at the same time they are all facing the pressure and constraints of technology and cost games. In the fierce market competition, all seemingly good things may be a product of compromise when presented to you. You should have a deep understanding and technology has been improving, but the quality of the product does not always have to grow, because the cost advantage has affected the survival of the product. Therefore, for the two technologies that have not completely broken out, we need to understand what they are like and what they are in the end. The final form of the QLED should be a quantum dot material that actively emits light, which does not require a backlight source for the display device. The current form is the distribution of quantum dot film in front of the blue LED, resulting in a higher purity backlight, through liquid crystal molecules to bring more "pure" color performance. The final form of the OLED should be an OLED organic material that actively emits light, producing RGB three primary colors that constitute the color. The current form is the use of white light OLED technology, OLED only acts as a self-illumination backlight, also need to filter this process. From a structural point of view, you will find that the two technologies that do not seem to be in the same dimension are so similar, both in their present form and in their future forms. It's just different on luminescent materials. Quantum dots have an interesting property. By changing the size of a quantum dot, it can affect the wavelength difference of its emission, and thus affect the color of its emission. When the size is small, blue light is emitted, and the size becomes larger and greener, yellowish green, then orange, and finally red. This interesting feature makes quantum dots an endorsement of high color gamut. The same material can meet the needs of different color gamuts. The existing color television display technology relies on the combination of three primary colors of red, green, and blue to form a color. The spectrum of the quantum dot film backlight and the OLED technology in the red, green and blue colors is approximately as shown in the following diagram. We can see that both the Q and O of the blue spectrum are Very clear and clear, but between green and red, OLEDs are not as pure as quantum dots. Therefore, in order to obtain more pure three primary colors, OLED will use a stronger filter layer. In turn, this method will reduce its energy efficiency, and color gamut and brightness will not be fully displayed. What kind of experience is called the ultimate visual experience? What kind of effect do we most want to obtain when watching TV movies? In fact, it is just a reproduction of the visual enjoyment we experience in nature. The human eye is very powerful. During the day, you can see a wealth of color information and brightness information. After the pupil is enlarged at night, it is also very sensitive to the capture of light. To use a display device to simulate the world observed by the human eye, you must have three key elements: sharpness, high dynamic range (HDR), and color. Before the evaluation or introduction, the three elements will always be separated. But recently there has been a very popular concept "color rendering volume" in academia and industry. It breaks the inherent thinking of our display effect. If we leave the brightness and talk about color, we will become a pseudo-proposition. For example, watching a picture of a volcanic eruption, or watching a video of a volcanic eruption on a typical display device, is no way to experience the kind of spectacularness that comes to the scene. The reason is that although there is an accurate color of the volcanic eruption on the photo, if the color is not displayed at the proper brightness, there is no way to give you a real feeling. Who is better for the color volume Q and O? There are two types of OLED TVs, one is called RGB OLED and the other is called white OLED. RGB OLEDs cannot be made large because of mass production. White OLEDs are the technologies that you can see on the market for OLED TVs. However, active luminescence is faced with a material failure phenomenon. If the high brightness is maintained for a long time, then the loss of organic materials is very large. In addition to the aforementioned problem of lowering the energy efficiency of OLEDs, the brightness of OLED TVs is generally not too high. High, about 500-600nit. QLED TV adopts the traditional backlight mode, which increases the power consumption of LED and adopts bolder backlight technology, which can make the brightness of the TV higher. Like Sony's Z9D and Samsung QLED TV peak brightness can reach more than 1500nit. The contest under high brightness has come to an end. What about dark field details? It can be said that OLED has the inherent advantage of dark field control, because it can achieve absolute black, infinite contrast. However, the actual situation is not so simple. Actually effective contrast is determined not only by one pixel but also by how much light is reflected by this pixel. Unless you are watching television in a dark room, there will be interference from reflected light. So it is difficult to achieve zero brightness in absolute terms. Therefore, in the case that the overall brightness of the QLED is higher than that of the OLED, the lower the brightness of the TV playback screen is, the more advantageous the OLED is, but the brightness of the screen is continuously enhanced, and the effective contrast advantage of the QLED becomes more pronounced. Another point, OLED in the weak current control, there are still some limitations. Dark detail and color transition issues are a big challenge for both RGB OLEDs and white OLEDs. The adjustment of OLED brightness is controlled by the PWM or DC dimming method. When the color depth reaches 8 bits and 256 levels, the control is very difficult. 10bit, 1024 level, if you can not do a good job, the dark details of the screen may be a dead black. Incidentally, the OLED burning problem in rumors is also mentioned. Since 2016, LGD has used three-color OLEDs to superimpose white light instead of the old blue-and-yellow OLEDs. Moreover, OLED materials use Sumitomo Chemical's most advanced materials. Burning screens are no longer a problem. So Sony and Panasonic dared to adopt the LGD OLED screen this year. After a long period of PK, QLED and OLED did not completely determine the outcome, but have their own different style characteristics. In the path of restoring the real world, everyone has different ways to achieve it, but no one is omnipotent and there is always a certain complementary relationship. Just like online and offline in business, 3D and VR in film and television, traditional Chinese medicine and western medicine in medicine, are all coexisting relationships. Are some of the conditions beyond the picture quality talking about consumer purchases of television just picture quality? Q and O can't just use the picture quality to make a simple brutal comparison. Designing or saying "replacement" has become an unstoppable innovation in the fast food culture of products. After wearing warm clothes, who does not want better clothes? After watching the picture quality of television, who does not want a more beautiful product form? Just like the Xiaomi MIX and the Samsung S8, you will feel that the iPhone is not ugly, but the iPhone is still the best smartphone for interactive experience, but what about it? OLED's greatest admiration should be the unique form of the product. The structural advantage of simplicity derives from the industrial design of the product. It is thought that the most beautiful products nevertheless emerge from the bones and do not require any additional packaging. The elegance of OLED technology is indeed refreshing. For example, OLED can be made into Wallpaper, which can be used to make screen sound, and can be made flexible. These are the new demands that are constantly being cultivated in the consumer TV market, because human nature is constantly pursuing beauty. The most primitive violence appeals of modern people are pinned on various arts. The simple structure of OLED can also be considered as one of the arts. QLEDs can also be ultra-thin, but they must be discounted on the backlight module. So from the structural point of view, we have to admire OLED. There is one more thing that must be mentioned. The price, everything is out of comparison with the price. LG's OLED saw Samsung's QLED cry, did not expect the same size can even be cheaper than I am almost half; immediately saw Sony's 100 å‹ Z9D it laughed again, did not think this guy actually bought 500,000; and Sony to see LG's OLED also laughed, this guy is only 77 inches. In conclusion, QLEDs and OLEDs do not seem to be comparable products in the media mouth. The QLED is more like an honest traveler who has accumulated hundreds of millions of steps and has a vast experience in him. OLED is more like a supermodel who walks in various major shows. He wears thousands of sets of fashion and has unique insights on fashion and beauty. It is not necessary to distinguish the outcome from the outcome. Even if it is a matter of necessity, it is not the technology itself that decides, because it is the efficiency and the cost that the technology is tied up. Therefore, it is still hoped that the two teams will compete on the same stage and continue to collide. Even in the next generation of print display technology, they will be able to flex their muscles. Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
