The hottest microled challenges whether OLED techn

2022-08-17
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Microled challenges OLED Technology: can it shake the market position

at this year's CES exhibition, Samsung launched an amazing product: the wall, a 146 inch Big Mac TV. In addition to the super large size occupying the whole wall, this TV also adopts a new technology we have never seen before: microled

it can be seen that microled intends to challenge the OLED technology that has dominated the TV field in the past few years, but can it really shake the market position of the latter

luminescence is the key word of these two TV technologies. As we all know, the panel of traditional LCD TV will not emit light. It needs to let the light emitted by the LED backlight pass through the quantum dot layer, color filter and many other panel layers to generate images

the pixels on the OLED panel can emit light and color independently, so each pixel can be turned on or off separately, so as to achieve absolute black level and infinite contrast. Samsung's microled technology also has the ability of self illumination, so it can also achieve the perfect black level of OLED and ultra fast response time

however, the brightness of microled is higher than OLED, and its state is more stable because it is not an organic compound. In other words, the red, green and blue pixels of microled will not have the problem of life decay, while the decay rate of different OLED pixels is different

in this way, microled seems to be better than OLED. But although this technology has recently made headlines, OLED will not be replaced

microled: the manufacturing cost and difficulty are too high

several industry giants regard microled as the next general trend in the field of display technology. Samsung has entered the market. Apple also recently acquired luxvue, a microled manufacturer, and even submitted a foldable iPhone patent using microled technology, which makes us look forward to the advent of Le watch and iPhone, which use apps with this panel to improve alloy yield

although the higher brightness, wider color gamut and modular structure of microled look quite attractive, it is still a nascent technology at present. Microled panels are very expensive and difficult to produce, even more than OLED panels. You know, it is definitely not easy to make and place millions of pixel sized LED lights and make them work together

Sony has also begun to explore microled technology for a long time, but they have suspended the research and development of this technology in television. It is reported that the leading generation of microled display produced by Sony in 2012 requires 6.22 million independent LEDs, which not only consumes very high energy, but also has a horribly low yield. Although the problems of opening the oil return valve to make the piston fall back have been improved, it is still extremely difficult to achieve large-scale mass production of microled

it is not easy to reduce the microled panel to the size of mainstream TV. Samsung's the wall is an amazing product experiment, but it is actually derived from the company's theater technology. It is a huge screen for commercial cinemas, which cannot be reduced in size at present

if you observe carefully, you can actually find the splicing gap of each module of the wall. Samsung said that due to the modular design, this technology can be reduced, but they are currently unable to maintain a sufficiently high pixel density for 4K resolution while doing so. But even if Samsung can produce a microled TV with a size suitable for ordinary families, it is unrealistic in terms of cost

oled flexibility

due to the great investment of major manufacturers, OLED technology has made a huge technological breakthrough. We have not only seen the reduction of product prices, but also witnessed more cutting-edge experimental technologies

while Samsung has made a lot of attention with its giant TV, LG display, another South Korean technology giant, has quietly demonstrated its own display technology. This 65 inch crimpable 4K OLED TV does not win by size, but it is still amazing

lg display's TV can be rolled into a cylinder like paper, but you can't see the cylinder, but it is hidden in a long white box slightly larger than the strip speaker. Just like the screen used by the projector, it will retract into the box when not in use and unfold again when necessary

in 2015, Janice Mahon, then senior vice president of technology commercialization at Universal Display Corporation, introduced a magical gadget called "universal communication device (UCD)". It is composed of a thin pen cylinder and a thin, curlable high-resolution OLED touch screen, which allows users to watch videos, get navigation, communicate with friends and colleagues, etc., and its battery life can last for several days

this device is still in the initial stage of research and development, but it really exists, and it may replace your, wearable devices, or other types of electronic products one day in the future

because OLEDs use organic light-emitting materials rather than this semiconductor hardware, OLED panels are more widely used than microleds. For example, transparent OLED (toled) has been used in retail displays and LG's own smart refrigerators, while phosphorescent OLED (PHOLED) can be used to make extremely low-energy displays

in addition, OLED materials can also be printed on plastic to achieve higher flexibility and lower cost

most importantly, the manufacturing difficulty of various OLED displays is much lower than that of microled, and they have been widely used in the commercial market. In a short time, OLED TV will also be popularized on a large scale

in the early years, OLED TV was out of reach for most consumers, but the price of such products has been greatly reduced. In the next year or two, the price of a 55 inch 4K OLED TV is very high, and the amount of die casting accounts for about 80%, which may be less than $1000. If you have experienced the ultra-high image quality of OLED, this is definitely exciting news

of course, the future of OLED technology is not bright. Before these devices are popularized on a large scale, manufacturers still need to overcome some technical obstacles. In addition to the battery problems faced by micro flexible OLED displays, engineers still need to figure out how to miniaturize OLED components

even in the application of traditional TV, OLED still has some worrying aspects, such as screen burning in extreme use cases and uneven color life attenuation during long-term use. In a short time of normal use, the latest batch of OLED TVs did not have these problems, but as a new classification technology of display material testing machine, these concerns will not disappear in a short time

however, the pace of OLED development will not stop. In addition to LG display's 65 inch crimpable OLED TV, LG Electronics' wallpaper OLED TV has also reached the second generation, which can be fixed to the wall through magnetic adsorption, just like a decorative painting

a few years ago, curlable OLED may only exist in people's imagination, but after the on-site experience of this CES, the development of this technology in the next few years is extremely expected

in contrast, although microled is a cool new technology, its maturity and cost are still far from OLED. It does have its own advantages and features, but it is still too early to conclude that it will replace OLED

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