Recently, the home has just been renovated and ready to buy TV. Just after the launch of Xiaomi's new TV, it was focused on the next. After reading this book, I created countless curiosity points. Then, I took care to sort it out. Let's take a look at popular knowledge, and let me tell you where it's wrong. The entire conference was not a long time ago. In the past, innovations focused on hardware were transferred from software to software. This time a total of 4 TVs were released, which were 43-inch, 49-inch, 55-inch, and 65-inch TVs. I remember in the news a few days ago that "Millet TV 4" was exhibited at the CES exhibition. Why did it become 4A at home? Listen to a media editor and say that in the future there may be a red rice TV! ! ! Is it true or false? After watching the ad for the first few days, Xiaomi TV 4A's ultra-thin is not very cold. After the conference, the millet official website found that the front-end developers of millet have already helped us to list the “How the Three Generations Shrink†page. This is more intuitive to understand how millet's third-generation television has shrunk. Official website link The developer horizontally listed the 55-inch comparison of all the parameters. The following points were surprisingly discovered: The first is the difference between LCD panels (lists are from left to right, 4A, 3S, 3 from newest to oldest). 1, backlight. The main reason is that the 4A backlight uses direct type, while 3S and 3 are side-type. So what's the difference between the two? In the sidelight backlight light source, the LEDs are distributed on the side of the light guide plate, and the structure thereof is compact. When edge-lit LED backlights are used in medium-to-large size LCDs, the weight and cost of the light guide plate will increase as the size increases, and the brightness and uniformity of light emission are not ideal. One way of this approach is shown in the figure. Direct-type LED backlight direct performance is better, you can achieve regional dynamic control of LCD TVs. Direct-backlight backlight technology is relatively simple and does not require a light guide plate. The light source and the PCB are placed at the bottom of the backlight. Theoretically, under the premise of meeting installation requirements and luminous brightness, the greater the height of the cavity, the better the uniformity of the light emitted from the diffuser plate. As shown below: Many high-end early-stage TVs use direct-lit backlights, but in recent years, with the continuous development of side-entry backlights, side-in backlighting can theoretically be thinner, but this time Xiaomi really made TV so thin. Is the use of a clustered LED structure the same as Sony Dafa to allow light sources to converge at one point? Only the partner who bought 4A knows about the light leakage situation in the all black state. The smart backlight has also been removed, leaving dynamic backlighting intact. 2. Lower color gamut of LCD panel From the chart, 85% of NTSC's TV 3 and 3S's NTSCs were reduced to 75% NTSC by 4A. What about NTSC color gamut? Look at the picture below: You can understand that the higher the color gamut, the better. Of course, if the screen is good or bad, you cannot view a color gamut, but also depends on the color deviation (ΔE). Of course, brightness, contrast, and response time are also key points. So 4A is shrinking compared to 3 and 3S. Is the higher your gamut the more niubi? Still need to look at the color deviation degree, in some places also called (color accuracy), the lower the ΔE average is good, which is why the DELL display U series are a little expensive reasons, most of the ΔE average is below 2 , but television generally does not give this value. 3, motion compensation is still not As you can see from the figure, it was cast from 3S. Motion compensation can greatly reduce the smear, blur, etc. in a fast-moving lens, and is a very useful feature. The best thing that the industry is doing now is Sony Dafa. 4, processor to reduce Do not know whether it is now popular with a TV CPU and GPU excess performance of the wind, making two hardware has been decreasing, maybe watching TV or movies is not using less powerful CPU and GPU, here is no longer a CPU One explained that just inserting Mali-760 has higher processing power than the Mali-T830. Similar to the difference between Core 6 i7 and Core 7 i5m. 5, double antenna tattered castration From the configuration point of view, Xiaomi TV 4A cut off 2*2 dual antennas (double-receive dual transmission) and Beamforming (beamforming technology) than Xiaomi TV 3. So millet 3S is better? Not even hacking 802.11ac, do not know how to think, is WiFi too surplus? 6, degraded HDMI, replace the USB Very unhappy HDMI from 2.0a downgraded to 2.0B this point is really not bad, and most people mistakenly think that B should be a new version better, but it is not true, HDMI2.0A higher level, HDMI 2.0b support 10.2G bandwidth While HDMI 2.0a supports 18G bandwidth, all support 4K@60Hz, but if it is HDMI 2.0b, in the color depth, color bit, it will be a bit worse, borrow a picture on the Internet: USB is changed from the original one 2.0 and one 3.0 to two USB2.0. 7, the support leg from aluminum alloy to plastic. The hardware is not enough software to fill: 1, eye protection mode Believe that fans who are keen to buy desktop monitors are surely not unfamiliar, that is, reduce blue light and protect their eyes. Let me cite the explanation of pin008 in the shell network: Blue light refers to High-energy visible light, which is a high-intensity, high-frequency (wavelength 400-500 nm) blue-violet visible light. Studies have shown that HEV light can damage the human retina. Research from the University of Taiwan Medical School showed that when HEV light hits the eyes of rats and mice, it may cause retinal cell damage. However, throwing doses to talk about harms is all about running hooligans. An important vocabulary for the definition of HEV rays is high intensity. High strength, high strength, high strength, high strength, high strength, and high strength. The object of experimentation at Taiwan University is a mouse, a kind of dark night creature. . . The Comptons University experiment, the blue light metering is equivalent to looking at a white incandescent lamp source of 100W out of 20 cm for 12 hours. . In fact, we all know that many blue light is not in the sunshine, the 400-500nm blue light every day, the sky is blue, and the brightness is very high, if you see a little blue retina burn, this animal has long been extinct. If any blue light is harmful, human beings as evolutionary products, seeing blue things should instinctively hide their eyes. As for the many Blu-ray protection products sold by businesses and pseudo-experts, the blue light that has caused cataract and macular degeneration, leading to nearsightedness, and apparent fatigue are all right. If the dose is sufficient, any light may cause cataract and macular degeneration; Excessive eyes can cause nearsightedness and obvious visual fatigue under any light. Does it have any effect? The benevolent see wise men see wisdom! This Blu-ray reminds me of the feeling that a lot of people had a protective cover in front of a large ass CRT monitor when they were kids, and the screen colors became weird. If you really want to keep your eyes open for blue light, add a cover and your eyes will be finished. 2. Artificial Intelligence Voice Technology This is how to say that some artificial intelligence data is manually entered, so it is not applicable to every movie. The actual user experience remains to be verified. Weibo has already been buzzing but I still support Xiaomi to do artificial intelligence voice technology. The future is no longer an era of pure hardware. to sum up: Millet TV 4A can meet the needs of 80% of TV watching people, the price has been so low above the excess performance is really important? Some people may say that TV should be optimistic for a few years, and how to do it later, you can rest assured that the millet TV 5S, millet TV 6 cost is still very high. but! ! ! ! ! ! If you have money, you can still pay attention to the next Sony Dafa, especially the new 100-inch model Z9D, which is the price of a toilet in Beijing!
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