Conforming to the completion of the new home renovation, home appliances purchase on the agenda, as game and movie lovers, for me, TV shopping is undoubtedly the highest priority. (It's simply out of the box, simple evaluation, very amateur, light spray must change) For the purchase of a category of goods, the clear need is the first step. It lists all kinds of conditions and undergoes heavy screening. The “she†that satisfies all your illusions is in the dim light. Take a look at my "mate selection" criteria. There have always been two views on the choice of TV size: the scientific theorists who must determine the optimal viewing distance and the optimal size, and the SIZE group that "the TV is not too big, the screen is smaller, and it is hard to buy and buy." . HDR: This concept was quite hot last year, and this year's major brands have begun to promote and popularize. Without referring to the boring standards, according to my more shallow understanding - the wider color gamut and higher brightness bring closer to the real picture quality, darker darker and brighter, the picture shown With more details and layers. HDR's peak brightness standard also rose from 800nit to 1000nit last year, while the 75Z9D's peak brightness reached nearly 3000nit (this is why many of the z9d's single photos in the photos are all over-exposed, and bright. ). But this kind of brightness is very unacceptable and it is not. It can be seen that according to the online science map, the dynamic range of the human eye is 10^5, which is 100,000 nits, and the 75Z9D 3000 is only the peak brightness, which is certainly not so high. The data comes from a home appliance bbs, anyway, you know what it is What is more, Sony also conducted line calibration of led light to reduce light diffusion and mutual interference. This knowledge is from the owner of Sony TV. In this case, only the belief is in line with the standard, 75X9400D or 75Z9D, think about how hot the district, decisive 75Z9D (Of course, there are some parameters that I don't value very much, such as the 14bit smooth gradient and the ability to handle the doubler of the 1080P video.) When the 75Z9D was purchased, A1E was already launched. A1E was sony's first civilian oled TV work. I still believe it's level. But at the same time, I have a lot of concerns. First of all, A1E has just been listed, and the price does not have to be self-evident (there is an original direct Taobao bargain 5000 is also convinced). The second is the size, now launched 55 "and 65" can not meet my needs, and 77-inch it, using LG's oled panel, the current OLED maximum cutting size is the upcoming 77-inch, when the price will not have to say It Third, there is no 3D, nothing to say, E is not all across the board. Fifth, for the fear of burning screen, this is my prejudice, according to LGD's argument oled technology has matured, but there are also arguments at the expense of color reproduction degree, please understand the God added it Six. The black is really black, but it is awkward. Black is a place where oled still needs improvement. Shop No. 1 buys its own products, orders arrive on the fourth day (now it costs less than one thousand when I buy, waiting for the results) At this point, the movie is 1080P, 4K, 3D, and mastered in 4K. color Nothing can compare the screen color things, just take the previous paragraph just bought ipad air2 to charge, and both sides are open to the maximum brightness, feeling Z9D not air2 bright, and later found that the option to turn off the light sensor is lit up, so Take two sets. A group of light sensor turned off, all passed up, everyone compares themselves, there is no hand-held camera equipment, take 6SP photos Advantages: The detail is relatively high under high brightness, especially the dark scene shows good picture quality. The color control is very good, even lighting, so many bad 3D effects of home TV playback under the remarks of 3D unexpectedly good, after all, active 3D. For the support of the standard can be automatically identified, the end of the rest of the HDR and Avatar 3D will be direct Tip, with Sony device synchronization more convenient, press the handle to turn on the TV, open the TV selected ps4 interface can open PS4. However, a bad point does not meet the return criteria (the state stipulates that more than three can be done), taking into account the relatively bad position (5-6cm from the right border), the 75-inch good product rate, and the bad news on the Internet. (Baidu z9d, the bad point will be able to see). It is interesting that I also found A1E bad posts. So say sony, quality control, quality control New sun drying, seeking encouragement and support
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According to the official website positioning Z9D is still the flagship, it is recommended with the ST9 (however there is no money)
However, after actual experience, I feel that I can support bigger and better views on the basis of quality assurance. Almost a year ago, I was wondering what TV to buy if it was finished. At that time, Toshiba was considered a 65-inch block. One day later, when I went to visit my relatives, I discovered new equipment for people—a 75-inch three-bar. The first feeling is "not really small," and the second is "but not too great." The final conclusion is "a very good size." Of course, I also considered the KD-85X8500D, but one is over a lot of budget, and second, although it is said that 85-inch screen quality is better than the Z9D but it is still inside the technology 8500D ah, the third is not satisfied with my other "spouse standards." 
Sony (SONY) KD-85X8500D HD 4K (3840*2160) LCD TV Black 53,999 yuan 75-inch 75X8500D as a 75-inch entry is only 20,000, but 85-inch due to yield problems and other issues already started with 5 Gome Online direct link 
Brightness in everyday life 
Human eye sensing brightness range
Direct-type backlight: Direct-type backlight is theoretically to control the light-off of each led unit, that is how many sub-led lights there are partitions, but limited to the cost of manufacturers or subdivision, the general more than 100 areas is very good, but this Back to Z9D finally applied the theory to reality. Each led unit can individually control the light off. The 65Z9D is a 648 partition. The 75Z9D is a 2312 partition. The 100Z9D is a 27280 partition.
3D: I have been using this feature for some time. Although there are all sorts of speeches that are "poorly effective," "less sourced," and "not necessary," I still don't change my mind. I just want to try and satisfy my curiosity. But this is facing a very embarrassing situation --------- C series already out of the market can not buy, D series shrink large and only 9300D up 3D function, the new product line E series is not small but Already cut all 3D (including A1E)
Fourth, the lack of brightness, this problem is actually not great, 800nit is very bright, and because of the self-luminous characteristics of oled, in the case of their own black is particularly dark, the brightness will feel quite enough. 
SONY Sony 75-inch 4K HD HDR Android Smart Network LED LCD TV KD-75Z9D Black 36999 yuan 1st store direct link 
Head is still not small, is not put into the elevator, vertical up (not recommended) 
Weight 59KG, 17th April Fool's Day production side of the paper shell handle has been split when the receipt 
Sony and one shop recommended receipt on the demolition, logistics recommended Sony after sales 
Didn't buy the TV cabinet, the base was removed, directly on the wall 
BRAVIA in the upper left corner 
The faith mark in the middle of the bottom 
I am very active in 3D glasses 
TDG-BT500A | Sony Accessories official website sony mall official price 299 direct link
Because of the high brightness caused by my broken mobile phone is often not well, we forgive me. Typical scenes give a few examples
the film 
Biohazard 1080p: Curse (PS4 Play) 
3D Avatar, I haven't seen it before. This time, I specially bought Avatar + Titanic. 
4K deadpool, this is hard to solve the hard disk TV. Ps4 cannot broadcast 4k 
Spider-Man 3, favorite old version 3, blackened. Mastered in 4K TV hard solution
Since I haven't moved the PC yet, I can't measure the 4K game quality. Only a few PS4 games can be measured. 
PS4 edition witcher3 
PS4 version THE LAST OF US 
DRIVE CLUB encounters a problem, it seems to be exposed 
This was later bought a TV cabinet, and then specifically take the seat, or quite cool
There is a wooden network with a wooden set-top box just here, let's take charge of the downloaded game
The first two 1080P two 720P 
open 
turn off 
open 
turn off 
open 
turn off 
open 
turn off 
open 
turn off
It can be seen that the control of the color sensor is very good when the light sensor is turned on, and the problem of brightness is raised when the light sensor is turned off. Red and blue can clearly see that the color near the border is dark, but the white and green colors remain very good. The black light is more uniform and does not show a large area of ​​light leakage. It is also dark enough (see the air2 is bright). The quality is good.
The test has some flaws: 1.air2 is not perpendicular to the desktop but the protective sleeve support, there is a small angle, so in fact, then the two camera angles are slightly different (remember the old Luo and Wang freely)2 . Put near convenient, but also because of the near, the light has some interference with each other, this point to see the two red air2 can see it, obviously the air2 is the same brightness as the picture, but the above color is positive Obviously it was interfered by the light of Z9D.
Smooth transition 
It should be because it is far away and it feels like air2 can be seen as excellent. In fact, there is no problem.
Disadvantages: General price, quality control needs to be strengthened. As for many old birds, they say that they are shrinking, not as good as the B-series, and plasma super-things. After all, I haven't seen the previous God Machine and I just don't comment on myself.
One point
That's right, I didn't mean to make a big splash. After arriving, I checked the machine screen for the first time after installing the master's watch.
There is a bad point! A bad point! Bad points! Bad point! Point... really is "a little bit of awkward" 
September 15, 2022