Future color TV shows whether it is the world of OLED, or whether there is another "king". There is no answer to this controversy. Especially in the context of the coexistence of OLED large-scale production cost, brightness, and burning concerns, it has become a more practical option to continuously improve the performance of LCD products. In recent years, the mature OLED-like LCD technology has become a key life-saving straw. OLED shows excellent flexibility What are the advantages and disadvantages of OLED? In the company's promotion, OLED display color TV technology is almost perfect. Including color, contrast, reaction speed, HDR, ultra-thin and flexible, etc., are all mainstream LCD TV products today are difficult to reach, or have a considerable gap. First of all, color, the self-luminous characteristics of OLEDs, and the future of RGB OLEDs to abandon the technology of color filter films, make this product can achieve higher color gamut standards. At the same time, continuously improving OLED material technology can also provide OLED with ever-increasing color performance space. Second, OLEDs are self-illuminated in contrast. Therefore, one pixel can be completely turned off. And then get almost infinite contrast effect. At the same time, in the aspect of ambient light processing, OLED screens do not need to consider the “one-way light transmission†structure of the liquid crystal screen, and more techniques can be adopted, which also enhances the contrast advantages of OLED display in practical application environments. Third, the reaction speed, OLED as semiconductor light-emitting devices, can easily reach the millisecond pressure level; and LCD products can only reach the millimeter level - this is ten times, or even a hundred times the speed difference. Fourth, in support of HDR technology, each point of the OLED emits light independently; the liquid crystals rely on the overall backlight to emit light. This makes theoretically OLEDs always support more partitioned HDR adjustments. Fifth, in terms of thinness, OLED TVs and display products are in the millimeter range, so that even 3-4 millimeters or even thinner TVs are possible. Because LCD TVs must have a backlight structure behind the screen, their overall thickness is always greater than that of OLEDs. Sixth, in terms of flexibility, the OLED can realize organicization from the substrate to the light emitting material, thereby satisfying the need for flexible display. At present, the flexible screen for mobile phones has been mass-produced. Color TV flexible OLED products are also under development. LG is the first to introduce a double curved OLED commercial display product. Of course, after discussing the advantages of many of the above OLEDs, it is also necessary to talk about the shortcomings of OLEDs. First, OLEDs have more expensive temporary costs, poor process stability, and limited production capacity for large-size devices. RGB large-size OLED technology has been slow Breakthroughs - The solution to these problems remains to be ripe for printing OLED processes. Second, the brightness of OLED is not as good as that of LCD. As a backlight-based display technology, liquid crystals easily exceed the limit in brightness specifications. The OLED needs to weigh the brightness, contrast, color, life and other factors, which is a natural weakness of OLED. Third, OLEDs are self-luminous products, and their pixels face more non-uniform aging problems. Including RGB products uneven color aging; And the uneven aging of the local pixel on the entire screen - that burning screen (burn screen, also known as afterimage) problem. Although the following techniques, such as fixed-frame displacement and pixel operating state optimization algorithms, can improve this scenario, OLEDs will always be more serious than liquid crystals in the problem of burning screens. So although OLED is a great new technology, it is not ideally perfect. In particular, the white light OLED+ color filter film technology currently used by color TVs has hindered some of the advantages of OLEDs, and has made liquid crystal displays see the hope of “contending OLEDâ€. Liquid crystal display is not far behind, what progress can counter OLED For liquid crystal display, it also has some natural advantages. These advantages, such as: 1. Cost advantages caused by the maturity of the industry, 2. Do not worry about burning problems, 3. Higher brightness performance and lifetime advantage under LED backlight support - these three advantages are the basic competition of LCD , is the OLED is difficult to comeback aspect. However, in addition to this, the advances in liquid crystal technology have also created many new miracles: First, the improvement of ultra-thin performance. In 2015, Sony launched a 4 mm LCD color TV technology. At present, this level of LCD TV products has gradually matured. The key technology of ultra-thin LCD is ultra-thin backlight and full-fitting backlight-screen combination technology. The former are mainly MINI-led crystals and Chip Scale Packages (CSPs). The CSP technology reduces the backlight thickness by more than one-third. Full-fit technology is developed in touch-screen display products such as mobile phones. At the same time, new backlights also use thinner light guide products, such as Corning's glass light guides. The combination of these new technology processes has enabled at least a sub-cm LCD TV thickness – the OLED ultra-thin advantages are not so obvious. Second, the flexibility of liquid crystals. OLED TVs and display devices can be flexible. This has always been considered a great advantage of OLED display. Because liquid crystal display products need to use a backlight - the flexibility of the backlight source becomes the key to restricting the flexibility of the liquid crystal. From the perspective of screen technology, liquid crystals and OLEDs use resin substrates, and non-glass substrates can be made flexible. However, when the liquid crystal backlight source is flexible, it involves problems such as the flexibility of the PCB circuit board, the flexibility of the light guide plate, the adaptability of the LED crystal particles in the flexible deformation, and the uniformity of the backlight source in the flexible deformation. This makes liquid crystals more flexible than OLEDs. However, with the development of MINI-led crystal technology, the design of a large number of small crystal particles - usually a few tens of crystals of a conventional LED crystal, a few hundredth of a crystal grain - can well solve the problem of LED crystals. Flexibility in adaptive deformation and backlight uniformity issues. Although these new backlight technologies are difficult to support the emergence of foldable liquid crystal display products, after all, OLED foldable products are only a concept, and the future may not be a reality. Especially in color TVs, full-foldable OLEDs are not only far from being realized, but also do not have much practical significance. Third, another advantage that MINI-led crystal backlight products bring to liquid crystal technology is the more refined HDR partition. The scale and sophistication of LCD products in HDR partitions is actually the scale and fineness of backlight brightness area adjustment. MINI-led crystals have turned several dozens of LED lamps on the side backlight into thousands of light bulbs, tens of thousands of lights, and even more. The precision of HDR has reached an unprecedented level - although not The pixel-by-pixel adjustment of the OLED theoretical value, but at least enough to meet the extreme needs of the future HDR image signal to the regulation interval. Fourth, in the contrast index, LCD can not resist the theoretical value of OLED infinity. However, on the one hand, there are ambient light problems in practical applications, and there is no infinity in contrast; on the other hand, the limit of contrast should also be meaningful in the human eye. In this regard, the liquid crystal uses its own higher brightness than the OLED, realizes the adaptation to the ambient light and the improvement of the visual field brightness, and can also create a good picture effect. In fact, the contrast advantage of OLEDs is more of a theoretical limit, not a feeling in real applications. Fifth, in the display color, the current white light + color filter film OLED technology, and QLED backlight LCD technology can not be formed against the advantage. In fact, by continuously improving the color level of the backlight, the color effects of the liquid crystals are consistently improving. Moreover, including the improvement of qled materials, improvement of LED lighting technology, improvement of various optical film effects, it has been proved that the limitation of LCD color is not a “natural bottleneckâ€â€”the color of LCD depends on the backlight rather than the LCD technology itself, using LCD and OLED is not scientific than color, and the real contrast is the color of OLED and LCD backlight who is more powerful. In summary, in the ultra-thin, flexible, HDR, contrast, color and other indicators, the progress of backlight technology can help the LCD is very busy - so, the industry has the concept of OLED-like backlight, that is to make LCD TV The performance of OLED backlight technology. The core of this backlight technology includes fully-fitted, fully chip-scale packaged direct-inverted MINI-led crystals, flexible components, QLED color enhancement technology, higher HDR adjustment and brightness, light efficiency support, ultra-thin design, etc. Wait. In short, under the blessing of new OLED-like technologies, many traditional advantages of OLED may only have one reaction speed; liquid crystals have three inherent advantages of cost-effectiveness, brightness, and non-burning. This makes the acceptability of OLED TVs and LCD TVs in terms of "performance comparison" undergo great changes, even reversed. At the same time, it has brought great uncertainty to the development of OLED large-size products. Who is the future, OLED-like has its huge drawbacks The OLED-like backlight technology enables the liquid crystal display product to have almost the same effect as the OLED display technology in addition to the reaction speed, and can retain the advantages of low-cost LCD industry maturity, high brightness, and no burn screen. This OLED-like looks so perfect! However, this world will not allow "perfect" technology. OLED-like necessarily has his shortcomings - these shortcomings include, OLED-like must be more expensive than traditional LED backlight. For example, the technical difficulty and workload of crystal transfer and installation caused by mini-LED crystals, the increase in the cost of more thin-designed optical components, the need for flexible development, high color design, and the need for more new technologies . These changes all mean the cost increase. That is, OLED-like is not a highly mature and economical technology on the shelf. He and OLED display themselves as a developing technology. The "developing" feature determines that the cost of technology to product realization will inevitably increase. This will damage the cost advantage of the liquid crystal display. At the same time, OLED-like technology cannot change the "problems" of LCD products. In other words, OLED-like products will continue to inherit the inferiority of LCD display in reaction speed. OLED-like is still a backlight technology. He cannot change the complexity, thickness and cost of LCD products because of the backlight. In general, the improvements that OLED-like can bring must be combined with the cost advantages of LCD itself to be competitive. The OLED-like itself is a technology that increases costs. Therefore, the market does not show a complete "recognition" for the development of this new technology route. More people in the industry think that the development of OLED is different from LCD technology in replacing CRT technology: the advantage of LCD contrasting CRT “big ass†is very huge and the application scenarios are completely different. Therefore, the industry is very clear about the future direction, and the industrial investment shows a linear plus code. feature. In OLED products, the current investment is concentrated in the 6th-generation line of small and medium size, and the application is focused on mobile phone products. And most of the investment was formed in the last two years. - The key to this situation is that Samsung has proved the feasibility of OLEDs in small and medium-sized products through an eighty-nine-year period, and has reached a considerable degree of industrial technology maturity, achieving a very high product economy. In other words, the investment of latecomers is not only a “concentrated investment in swarmsâ€, but also has no industrial-oriented technical concerns, but also has a “universal aura†where cost-effectiveness has been achieved. In the application of large-scale color TV products, OLED is also likely to repeat the old road of small and medium size market. More manufacturers will wait until a brand proves technical reliability, maturity, and availability before triggering large-scale investment across the entire industry. Why is industry investment in OLED so cautious? Because the similarity between OLED and liquid crystal is very high, the application substitution is almost 100%. In particular, under the OLED-like concept of blessing, the expected viability of liquid crystals has been significantly enhanced. This will inevitably lead to an increase in the anxiety of the technical route between OLEDs and liquid crystals in large-sized applications such as color TVs. Of course, there is another industry-wide variable in the future display market: the maturity of print display technology. If the printing process is mature, OLED or QLED self-luminous display, you can quickly establish the "cost competitiveness" of "liquid crystal + backlight" products. At that time, no matter how good the backlight source improvement technology is, it will be "the taste of the application market." 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.
