The story begins at the beginning of this year when I made a video for my friend and used Da Vinci to adjust the color - I feel very satisfied. But when my friend watched this video, he spit out why my color is purple. . .
The monitor he used was the Samsung TN screen many years ago. I used the Dell U2412 bought three years ago and used the spider to teach it. At that time thought: It must be your screen is too hot. However, after comparing with IPHONE (this should be the most appropriate color reference in the hands of ordinary people), we concluded that both of our monitors have turned to their homes - his serious Blueish, and my yellow
From now on, the grass that wants to change the display has long been opened. From March to now, it has grown into a prairie. . .
First of all, my needs1: High resolution. Originally used DELL U2412 is the classic old models, 16:10,1920 * 1200, now must be replaced with newer resolution, so 1080P will be ruled out. As for 2K, it always feels like a transitional product, and it is only 4K.
2:24-27 inches. Because my desk is only 60 degrees deep, and I have experienced 32-inch monitors before, it is too big for me and I need to look up.
3: accurate color, accurate color, accurate color. This is the most direct reason, because it is important, so say three times
4: cost-effective. The reason is simple: one word: poor
Since March, she has been paying attention to Aunt Zhang. At the same time, she has also gone to a lot of reviews to lock in several goals:
LG 27UD68-W 27 inch 4K IPS hard screen love eyes do not flash blue LED backlight LCD monitor 3399 yuan Jingdong direct link LG 27UD68, narrow frame, large amount of possession, one of Kabbah standard, slot: base is unstable, does not support lifting, no USB
LG 27UD58-B 27-inch 4K IPS hard screen love eye does not flash blue LED backlight LCD monitor 2799 yuan LG 27UD58-B is LG entry-level positioning 4K display products, but on the video output port is very conscience, with two HDMI and A DisplayPort interface, with an audio output, allows simultaneous connection of multiple devices for fast switching. 27-inch IPS screen, viewing angle 178°/178°, gray-scale response 5ms, brightness 250cd/m2. The supporting software can be split-screen display Jingdong direct link View Encyclopedia LG 27UD58, poor version upstairs, price is very high, slot: inherit all the shortcomings upstairs, thickened the border, and is my personal very annoying bright face border
Dell (DELL) P2715Q 27 inch 4K ultra-high-definition rotary lift IPS screen display 3999 yuan Jingdong direct link DELL P2715Q, quite satisfactory choice, Dell brand aftermarket bonus, slot: a bit old, HDMI interface is not 2.0, does not support 4K60HZ, means completely insulated with the PS4
AOC Loire series LV273HUPX 27 inch 4K resolution IPS ΔE3799 yuan Jingdong direct link AOC LV273HUPX, high value, the base color value is also high, can be raised and lowered, slot: 4K display actually with VGA interface, too perfunctory
HP ENVY 27S 27-inch 4K UHD HD IPS Narrow bezel large screen 178 degree wide viewing angle FreeSync Support wall-mounted LCD monitor (black) 3199 yuan ENVY 27S is HP's display product launched in the second half of 2016, because the release time happens to be in HP After the mark, so directly behind the HP used in 2016 replaced the LOGO. 27-inch IPS panel, 2mm ultra-narrow frame design, resolution 3840×2160, viewing angle 178°/178°, 99% sRGB wide color gamut, excellent color display. Although gray-scale response time is only IPS common Jingdong direct link to Wikipedia HP 27S, narrow border, high value, slot: like the first floor, and no audio interface, compared to the foreign version of the castrated type-c interface
ViewSonic VP2780 27-inch 4K high resolution IPS wide viewing angle professional photography drawing design computer monitor display 3999 yuan Jingdong direct link The final choice, ViewSonic VP2780, the most complete interface, slot: the appearance of more professional (chou), large base, large frame
BenQ BL2711U 27-inch IPS wide viewing angle 4K resolution 100% sRGB professional design computer monitor display (HDMI/DP/USB3.0 interface) 3999 yuan Jingdong direct link BENQ BL2711U, feel the parameters are all OK, and the difference is that you use the AUO panel, slot: too small, can not find a few evaluation, not as a mouse
PS: As a Yan value party, the landlord first started with 27UD68.
However, the yin and yang of the screen to get the hand is too heavy, the left side of the white background is heavily red, as obsessive-compulsive disorder can not accept, and finally choose to return into the VP2780
(The following will refer to the comparison of two machines)
Appearance out of the boxSaid half a day nonsense, finally entered the topic!
This is the box that the landlord picked up in the security room downstairs. ▼ (Since Tucao, since the start of the Jingdong campaign in June, Jingdong’s uncle Jingdong has never delivered the door to her home. Every time I fling things to the security room , leave a text message to drive straight away)
The outer box is very large, the traditional LOGO of ViewSonic - three birds
The secondary energy efficiency logo should be the level of law-abiding
A warranty card and two numbered test reports are included with the box (in fact, the eggs should be copied in addition to the numbers)
With all the cables that came with it, the power cord was disconnected by me. . . The four data lines are DP-miniDP, HDMI2.0, USB uplink, and MHL-HDMI. That's right. I have confirmed that JD.com has confirmed that only the HDMI cable is packaged. 
Large base, turn on the upper bayonet and tighten the screws, fit together
Oblique 45-degree passport photo, large body appeared
Base can rotate left and right
Behind it, the square is full of horns. It is my dish. There are unopened seals below.
The seal on the base can unlock all the strange poses
For example, like this. . .
There is this. . .
One of the advantages mentioned earlier, among all the options I listed, the VP2780 is the most complete interface.
From left to right are: USB uplink, two USB3.0, two MHL-HDMI, HDMI2.0, DP, mini DP, audio output, power supply
Because of the existence of two DP interfaces, my two hosts can be connected to the monitor at the same time.
There are two other USB ports on the right side, all of 3.0, sitting and reaching out, but not U2412's convenience
Touch buttons, the response is very sensitive, but there is no backlight, so turn off the lights at night will become Han Zong mode, GG
Like to see the machine evaluation
There is no bad point! ! ! This is the first time the landlord has bought a ViewSonic monitor with no bad spots. . . 233
The viewing angle does not seem to be as good as my original U2412. When viewed from a white background, there will be redness. At first, I thought it was yin and yang, but in reality it did not - because it is pure white when we look right. Unlike the previous LG, there was yin and yang no matter what it looked like.
In addition, when the gray background is displayed, the thick vertical lines can be seen on the screen. The photographs cannot be photographed and can not be seen in everyday use, so I chose to forgive it.
The OSD menu is not too good to talk about, the only thing worth mentioning is that it comes with a stuff called the uniformity adjustment technology. It never appeared before in the review. It seems to be a new black technology - I The production date of this screen is March 31. The batch is relatively new.
Because the SRGB mode that comes with the monitor is selected here, this function is turned on by default. 
Then on the guy evaluation - and 2412 to buy the same period of the red spider 4
The test result is for the landlord who has not seen good goods. . . It is not excessive
The color accuracy of the SRGB mode itself is very good, and there is little contrast before and after the color change of the spider. This has never been seen in displays that have been used by the landlord or have been corrected by others.
Attached below is a test report â–¼
Srgb color gamut
The first is the color gamut, which is slightly different from the evaluation report of P2715Q and 27UD68 I have seen before. The measured color gamut (red line) and SRGB (green line) of the VP2780 are almost completely coincident. The standard SRBG was the last time the landlord saw this. The situation is on the top with RMBP15
Then is the tone response curve, perfect!
The color temperature is 6800-6900K, which is slightly cooler than the standard 6500K
note! High energy ahead! â–¼
Screen uniformity test, when I saw this result, my expression is such a surprise! ! !
In order to express my surprise, I think it is necessary to compare the previous map of a friend's product. â–¼ There is no harm without comparison.
Turn on uniformity correction
The answer is contrast! After turning on the uniformity correction function, the maximum brightness is limited to 200 nits and the contrast drops sharply
Compared to a default mode with no uniformity correction, the maximum brightness can reach 375 nits and the contrast almost doubles.
It seems that the degree of homogeneity is based on sacrificing brightness and contrast.
Followed by the color accuracy test, deltaE average 0.77, excellent
Finally, the score given by the spider, the color temperature was deducted by 300 points because of the gap of 300K, the contrast is to sacrifice the screen uniformity, was deducted 2 points, other scores can be used to describe the perfect
Turn off the uniformity correction score
A score that was corrected after the uniformity was turned off was actually quite awesome.
The previous article has been ridiculed, VP2780's base is very. . . Ok. . Gigantic My 60cm small desktop can't hold such a huge triangle base. However, I have already prepared the bracket.
Ergotron LX Display Single Arm Bracket Rotary Holder Desktop Stand Ten Years Original Warranty 10-32 Inch 999 Yuan Jingdong Direct Link A good horse is equipped with a good saddle, and the famous Aegir must come
Don't ask me why I am white. I wouldn’t say I bought it for 27UD68.
Combination success! Next to the original U2412
As the two giants of silly black and thick circles, the thickness of the two is basically the same
However, mention the border width. . . Dell said: ViewSonic, you count!
The measured VP2780's border width exceeds 2 centimeters, compared to DELL U2412's width of 1.7 centimeters.
The same situation occurs in the comparison of the two brackets, left VP2780, right U2412
Previous desktop real shot map, left U2412, right VP2780. Because of the shooting angle, 2780 is a little white. The 2412's screen is a bit yellowish. Don't know if you can see it after uploading and compressing
Shooting parameters aperture F4, ISO125 (hand slide, should have set 100), shutter 1/2S, light leakage, after all, IPS fine tradition can not be lost
Shutter 0.1S
Aperture F4, ISO125, Shutter 1/10S 
Shutter 0.2s
Aperture F4, ISO125, Shutter 1/5S 
Shutter 1/3S
Aperture F4, ISO125, shutter 1/3S
The higher the shutter speed is, let's lose!
I'm sorry the landlord hasn't played the game for a long time, so this part of the content is missing 233~
Moreover, the GTX650 TB graphics card does not allow me to test games other than LOL.
The ViewSonic official uses the word “professional†to introduce this monitor. In fact, after two days of use experience and evaluation, it is indeed worthy of this title, and it is absolutely worth its price! Of course, I personally look forward to ViewSonic can use this screen to make a 4K version of the small black series, so that both resolution, color and value!
advantage4K resolution experience is very good, WIN10 with MACTYPE text display is very delicate, with a long time 4K screen and then turn to look at the next 2412, what stuff, disgusted. . .
The quality of the screen collapsed, the color accuracy was excellent, and the uniformity correction was a pleasant surprise, basically eliminating the yin and yang screen.
DC dimming does not splash screen, it is more comfortable to look at than using PWM dimming 2412
The interface is complete, all of them have
The SRBG color gamut is definitely an advantage for my lazy person. The wide color gamut color management is too troublesome
Shortcomings The appearance (sha) industry (he) is steady (hei) heavy (cu), comforts oneself to look at EIZO and NEC, the professional monitor should be long. . . Ok
The base is ultra-stable and overweight, which occupies space on the desk and is strongly recommended for use with the stand.
The viewing angle is not as good as 2412. When viewed at a large angle, the color will be deviated, and the white background will become red. There will be vertical stripes under the gray background. There is also a common problem in the low-end IPS screen. The black display is not “blackâ€.
Lack of hardware color correction, one step away from true professional grade
No FREESYNC, basically keep up with the game
Compared with Dell, ViewSonic's workmanship is indeed normal, the border is not too detailed, and there are no bad spots to look at. . .
The inductive button has no backlight, and it is easy to touch in the evening, but the problem is not so big. After adjusting the settings, it will not go.
Applicable user
Designers, photography parties, etc. require higher resolution and color occupations, but are not shy to take out a five-digit budget to buy a professional monitor.
Game Party, Home Party, Yan Value Party, because the same level of market has cheaper, more beautiful appearance
Use a screen shot map to make an end, 4K screen is really toxic!
Silently diving in Zhang Aunt more than a year, the first time to send original stickers, no experience, we lightly spray.
Finally, I wish everyone 618 to buy happy, happy!
The short wave pass filter is a cut-off filter in the interference filter. The cut-off filter is divided into long wave pass filter and short wave pass filter, that is, the beam in a certain wavelength range is required to be transmitted, and the beam deviating from this wavelength changes to cut-off, Usually, we call the filter in the reflection (cut-off) short wave area and transmission long wave area as long wave pass filter. On the contrary, the short wave direction is transmitted, while the long wave direction is cut-off. What plays the role of isolating long waves is called short wave pass filter.
short wave pass filter
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