Simple desktop must-have: Samsung CH711 Quantum dot monitor evaluation
[PConline Review] Whether it is a TV or a monitor, 2017 is destined to be an extraordinary year, because OLED technology and QLED technology will usher in a positive confrontation this year. Quantum dot technology adopts a brand-new backlight technology and has a confrontation. The strength of OLED, and quantum dot TVs and displays in the market are all at an initial stage. However, as far as practical experience is concerned, Samsung has received a lot of praise as the initiator of QLED. At the CES 2017 at the beginning of this year, Samsung gave us Brought a new Quantum Dot Surface Monitor - CH711, today our evaluation room ushered in this product, so that everyone has a more in-depth understanding of this product's ultra-high value and excellent performance!
Samsung CH711 Reference Price: Loading... Image Reviews
Popular N minutes:Before evaluating this QD monitor, Xiao Bian felt that it was necessary to talk about the QLED QDs first, but it also made it possible for you to better understand the products and gain a long experience. O(∩_∩)O~
What is QLED Quantum Dot Technology:
In fact, quantum dot technology is not a new technology. As early as 1983, scientists at Bell Labs in the United States have studied it. Only a few years later, Mark Reed, a physicist at Yale University in the United States, officially formalized the semiconductor microchip. Named "QDs" and still in use today, this is not a new technology in the strict sense. It is only in recent years that the display giant led by Samsung has developed a keen interest in quantum dot technology.
Quantum dots are actually a kind of nanomaterial made of zinc, cadmium, selenium, sulfur and other elemental synthesis semiconductor materials. The diameter is only 2~10nm. Compared with traditional fluorescent materials, quantum dots have better photoelectric properties. Moreover, the quantum dot nano-particles have good linear optical properties and have high luminous efficiency. By changing the size and chemical composition of the quantum dot material, the fluorescence emission wavelength can cover the entire visible light region.
Comparison of QLED technology with current OLED technology:
As mentioned above, in fact, QLED is a quantum dot backlight technology based on the quantum dot photoluminescence characteristics, and has the following advantages over OLED technology:
1, more energy-efficient. With the same picture quality, QLEDs are more energy-efficient than OLEDs, and their amplitude can reach about 2 times.
2, the color performance is more perfect. The OLED is about 70% under the BT2020 standard, and the QLED covers the same standard and the color gamut coverage can usually reach over 90%. The color gamut coverage of the Samsung CH711 QD display for this experience has exceeded 100%, as high as 125% sRGB.
3, longer life and more stable, the cost is lower. Since organic light-emitting diodes (OLEDs) are made of organic materials, and QDs use quantum dot crystals as non-organic materials, the lifespan of the former three light-emitting materials is insurmountable, and the latter is more stable and long-lived.
4, in addition, quantum dot display technology also has high color purity, high brightness, accurate reduction of color and other advantages.
Appearance & Details Appreciation: The original white can also be done so beautifulAfter introducing the advantages of quantum dot technology, we are now officially entering our evaluation of this QD monitor, the Samsung CH711. First of all, let's make a comment and appreciate it with its first impression of appearance and detail.
Samsung C27H711 QD surface display uses a 27-inch 1800R curved screen (CH711 model also has 31.5 inches), resolution 2560*1440 2K level, you can display a more detailed ultra-high definition image quality, and the use of three narrow borders The design has a width of only 1.2mm.
The back of the monitor has a good echo with the front silver frame. The all-white design is adopted. On the elegant white backboard, there is no trace of superfluous embellishment other than the Samsung logo, which is very beautiful, simple and atmospheric. It is no wonder that even if you look at the value of your monitor, you have to look at Samsung.
Looking from the side of the display, the overall appearance is white, and there is no trace of black elements. The simple style of this QD display is the ultimate, and from the thickness of the entire display, the thinnest point is about 9.9mm. Very slim surface display.
Another highlight of this monitor is its extremely clean back design.
Unlike most displays, the Samsung CH711 QD display uses a unique hidden design for its interface and power supply so that the cable can be completely hidden within the monitor's support, and no redundant cables can be seen from the back. The design of the surface and hidden cables can make the desktop more concise.
On the interface, the Samsung M711's MINI DP interface and HDMI interface also meet the needs of almost all laptops and host computers.
In order to realize the hidden cable design, in addition to the special design of the bracket, the cable is also uniquely designed. Samsung integrates the power cable connecting the monitor with the HDMI cable of the video output, and finally makes the cradle There is only one cable at the exit, which greatly simplifies the cabling layout and lays a foundation for creating a simple desktop.
The cable appears at the bottom of the round hole, while the base of the Samsung CH711 still uses a pure white design, and the strong sense of white round metal chassis, and the entire white display seamless.
OSD button control: one button to control all
The minimalist style not only appears on the cable and design of the Samsung CH711, but even the OSD button uses a "subtractive" design. The entire monitor has a button + remote control at the bottom of the screen.
As long as you gently press the button, you can quickly adjust the display brightness, contrast, and sharpness.
Before opening the main menu, the Samsung CH711 has one more menu selection, namely the button to enter the main menu, the video signal switching button, the eye protection mode switch button, and the switch button.
When the eye protection mode is turned on, the brightness of the entire screen will be reduced, and the color will be yellowish. This kind of hue and brightness can effectively relieve eyestrain of computer work and games for a long time.
After entering the main menu, the adjustment of the display becomes more abundant, and the display supports AMD FreeSync technology, effectively preventing the delay and tear of the picture. The built-in smart mode of the display allows users to quickly switch between different modes for a better visual experience.
Real shot on screen: The color of quantum dot technology is still goodThe front said so many appearances and display settings options, but in the final analysis, the most important thing is a monitor screen, QLED quantum dot technology in the performance of the screen will not surprise us? Here we compare the proofs of our real shot screen with the actual artwork and see if this Samsung CH711 is satisfactory on the screen performance.
PS: Because it is a real shot of the camera on the screen, the displayed effect is still somewhat different from what the naked eye actually sees.
First from the solid color of the real shot and the original comparison point of view, on the above five major color reduction, the Samsung CH711 performance is still very good, after all, the eyes to see and the camera shot out of the gap, the actual display will be better some.
In the 256 grayscale display, the Samsung CH711 has basically reached full coverage, specific performance, we have a detailed introduction on the performance test later.
The Samsung CH711 excels in color gradation. The transition between color and color is natural and there is no stiff transition. On the naked eye, the color reproduction is also more accurate.
Looked at the next test sample, let's take a look at the screen display performance on some wallpapers!
Samsung CH711 comic wallpaper real shot (left shot for the screen, right for the original)
In the performance of the comic wallpaper, the Samsung CH711 performed satisfactorily, and the comparison with the original map was very close, and the details were well preserved.
Samsung CH711 character wallpaper real shot (left for the real shot, right for the original)
From the figure above, it can be seen from the above figure that the original picture and the real shot of the screen, the real color of the real picture on the screen will be more vivid, white is even more bright (the original picture and the real shot are not processed in the later period, this Part of the reason is the problem of the camera. Xiao Bian said in terms of actual feelings, the display of the screen on the characters is more real and the colors will be more vivid.
Samsung CH711 landscape wallpaper real shot (left shot for the screen, the right is the original)
In the landscape view, as shown above, the Samsung CH711 monitor's screen can clearly show the original green lawn. Accurate color reproduction and excellent performance.
Samsung CH711 complex scene wallpaper real shot (left shot for the screen, the right is the original)
Samsung CH711 complex scene wallpaper real shot (left shot for the screen, the right is the original)
In the performance of complex scenes, Samsung CH711 uses a 2K resolution screen, the image is very clear and detailed, many details can be perfectly displayed, the details of the shadows are retained, it is worthy of appreciation.
Samsung CH711 macro photo real shot (left real shot on the screen, the right is the original)
On the macro photos, the picture shows that the red reduction ability is excellent, and the difference from the actual original picture can be said to be very small. Under the blessing of quantum dot technology, the whole screen of the Samsung CH711 curved display is really satisfactory for Xiao Bian. Therefore, for the subjective part of the screen shot, our PConline evaluation room gave a subjective evaluation: Excellent.
Screen really making proofs at a glance:
Here's a photo shoot for real photos and wallpapers for everyone to enjoy!
In the experience of video and games, we chose the TV drama "People's Name" of the latest fire as a test sample, and the FPS's "watch pioneer", "CSGO" and RTS "League of Legends" as the measured game. .
In the video viewing, Xiao Bian's first feeling is comfortable, after all, the 1800R's curved screen can bring wraparound immersion, and 2K resolution performance is much better than 1080P.
In the process of FPS games such as "Beyond the Pioneer" and "CSGO", even if faced with a fierce and complicated shooting interface, the game screen did not appear to be torn or delayed, and the actual experience was excellent.
The experience of "League of Legends" also feels good, the details of the characters can be expressed, and the color of the character environment is accurate.
In general, the Samsung CH711's curved screen can bring a better sense of immersion to the game and video. The real visual effect of the quantum dot screen is very accurate for color restoration, and it supports FreeSync technology, which is very good for A card users. To prevent the delay and tearing of the game screen, the subjective evaluation given by PConline in this link is: Excellent.
Performance Test: Awesome!After speaking about subjective feelings and evaluations, it is still necessary to use objective data to speak. The test instrument we chose this time was the Spyder 5 (5 generations of Red Spider). The color gamut, color reproduction accuracy, color temperature uniformity, chroma uniformity, brightness uniformity, gamma curve, etc. of the monitor were determined for the Samsung CH711. The monitor performs a full test.
· Ambient light color temperature: 6500K
· Ambient light: 51 Lux
·Signal input: HDMI
·According to ISO3664 standard
Color gamut coverage:
From the test results, the color gamut coverage of the Samsung CH711 QD display is excellent, because the software can only display 100% sRGB values, so the result is 100% sRGB color gamut, but in the actual experience will be higher than this range (The official claim is 125% of the sRGB color gamut), while the NTSC color gamut is 83%, and the Adobe RGB color gamut is 85%. From these color gamut results, the Samsung C27H711 is a quantum dot display with very high color performance. Excellent.
So in the evaluation of color gamut, the evaluation that we PConline gives is: Excellent.
Gamma curve:
In the gamma curve test, the value of Samsung CH711 display is in the middle of two curves, which is a better product in terms of brightness and contrast.
So for the performance of this piece, we give the result: excellent.
Color uniformity:
100% color uniformity: Delta E is between 0-5.7
83% color uniformity: Delta E is between 0-5.7
67% color uniformity: Delta E is between 0-4.9
50% color uniformity: Delta E is between 0-4.5
In the color uniformity performance on the display color uniformity in the upper level! So for this part of the test, our evaluation is: good.
Brightness uniformity:
100% brightness uniformity: Delta E is between 0-16
83% brightness uniformity: Delta E is between 0-16
67% brightness uniformity: Delta E is between 0-15
50% brightness uniformity: Delta E is between 0-15
In the brightness uniformity test, the Samsung CH711's performance difference is between 0 and 16, and from the point of view of uniformity under different brightness, the difference in the upper part of the screen is less, gradually to the bottom of the screen, the brightness of the screen The evenness difference starts to increase, and the brightness uniformity layout is still from the top down, more consistent with the user's habits in use, so the test given by this PConline is still good:
Color accuracy:
We tested the Samsung CH711 display with 48 sets of colors. From the ΔE test results of each color in the above figure, the performance is generally very good. Under the blessing of quantum dot technology, most of the 48 test results The ΔE values ​​of the colors are all below 1. In addition to the ΔE value of the color of 1F being 2.94, the ΔE values ​​of the other colors are all within 2 . The average ΔE value is 1.18, the minimum value is 0.4, and the maximum value is 2.94. The performance is very good! After all, with the blessing of quantum dot technology, our PConline's assessment of color accuracy is: Excellent.
For the performance test of the screen, we have all done it. Here's a summary!
To the performance test of the force, plus the previous screen shots, games and video measurement experience, after the discussion in the PConline evaluation room, we gave a comprehensive evaluation of the Samsung CH711 QD surface display: Excellent.
[PConline evaluation room summary]
Quantum dot display can be said to be the main product of Samsung display. Compared with ordinary LED display and liquid crystal display, it has more outstanding color expression. Samsung CH711 Quantum Dot Surface Monitor, whether it is a very immersive viewing and gaming experience, or pure white and simple fashion appearance and unique hidden cable design, are very commendable, can be said to be a simple desktop to create elegant art The display has also been listed on Tmall and Jingdong. Interested friends may wish to learn more about it.
Tmall purchase address: Click here
Cast iron Fire pit size : diameter 60cm 80cm to 100cm .
Thickness of cast iron Fire pit/Fire bowl : 1.2mm
Packing of cast iron Fire pit /Fire bowl : plybag,wooden case or carton
Packing quantity of Fire pit/Fire bowl : 6pcs/ctn ,or put into wooden case .
Fire pit also named Fire bowl ,fire-pit .
Fire pit size: diameter 60cm 80cm to 100cm .
Thickness of cast iron Fire pit/fire bowl : 1.2mm
Packing of cast iron Fire pit/Fire bowl : plybag,wooden case or carton
Packing quantity of Fire pit/Fire bowl : 6pcs/ctn ,or put into wooden case .
Outdoor Fire Pit,Metal Fire Pit,Fire Bowl,Bowl Fire Pit
BAODING JIMAOTONG IMPORT AND EXPORT CO., LTD , https://www.chinagroundscrew.com