# Original innovator # Bai Yuyou: HKC C340 21:9 3.5K 100Hz curved display

My DELL U2311H worked for almost 6 years and I don't care about it. The conservative estimate also shines for tens of thousands of hours. After spending so long, after all, the old state, CCFL backlight aging brightness decreased, cheap IPS greasy feeling more and more moving, it is time to take care of the eye!

I also used a 27-inch 2.5K cottage screen five years ago. It was called the apple scrap. At that time, it was a perfect screen for a good buddy's eyes, and ¥1100 was actually a cheap chin. He was too big to switch to my U2311H. I used it for six months. The display effect is really powerful. The color feels really translucent. The color level is also more abundant. Take the PS to brush two colors, U2311H can't see the difference. The goods are clearly seen, and then drag a gradient. The gap is even more pronounced. But unfortunately the eyesight has also dropped badly. I can't stand it, and I change it back.

Recently, this buddy's family has added another LG 34UC98-W, which was used to cut the film for his wife. When I went to his home, he strongly suggested that I use it. I use one, oh, 3440x1440px, I like this resolution, and the perception is not inferior to that of the cottage Apple screen. I checked, large size 38UC99 too expensive, high refresh 34UC99 not listed, 34UC98 fruit interface does not have access, then the next LG 34UC88 it!

LG 34UC88-B 34-inch 21:9 super wide screen curved surface high resolution IPS hard screen love eye does not flash filter blue LED backlit LCD monitor 5561 yuan UC88 series is the surface version of UM88 series, other parameters are exactly the same. The LG 34UC88-B 34-inch 21:9 curved display features a 34-inch IPS hard screen, a wide field of view (Field of View), 99% sRGB color space, 3440*1440 resolution, and professional color calibration. Cinema Screen screen allows players to play Jingdong direct links to Wikipedia

Then I discovered HKC C340...


WeChat (HKC) C340 34-inch VA wide viewing angle does not splash screen 100Hz refresh 4K 1800R curved professional gaming monitor (HDMI / DP / DVI interface) 3489 yuan Huike C340 is 2016 launch of e-sports display products, specifications one Such as the HKC past stacking style. VA panel, 85% NTSC, 110% sRGB color gamut. 250cd/m2 brightness, 4ms response time, 1800R curvature, resolution 3440*1440, aspect ratio 21:9. Support FreeSync adaptive synchronization technology, the maximum refresh rate of 100Hz. With PIP Jingdong direct link View Encyclopedia


... Is this road particularly familiar?

The HKC T4000 was selected before the installation of a friend. To be honest, the overall situation is much better than expected. Of course, it is also stronger than U2311H. It is a subversion of my impression of HKC. Now attracted by the C340's parameters and prices, and catch up with Jingdong activities, ¥ 3399 to hand, to happily go to the next single.

Cough, here's a direct question. Skipping the packaging and other aspects, but also skip some standard evaluation, after all, I have no equipment, no professional, to write more practical experience and contrast, map less characters, do not blame.


Assembly


Just after opening the box, I found that there is a hole in the upper right corner of the shell. The problem is not serious.

The base support also did not know how it was electroplated. I saw that other buyers generally found rust. As for fingerprints, they were even more expected, and they did not see it.

The interface part is still quite stable, but the design is a little tricky. The DP line is thicker and the connector is longer. It is blocked by the housing. This is also mentioned in other evaluations.

Generally speaking, work is generally done, and where it is not critical, it can save the province, but there is no problem.

White plastic shells, smokers have to weigh something, this shell is definitely yellow. Of course, still quit early.

When the goods arrived, it was cold. After turning on the machine for half an hour, the plastic case would occasionally sound and heat for a long time. It rang for an hour and resembled a microwave popcorn.

The attached DP cable is about 1.5m long.

The power is plugged in directly, not an external adapter. In turn, you can think of it. Don't expect to hang a wall, no hole.

Although it is a built-in power supply, it doesn't have a lot of heat. It's a bright overnight and it's not cool or hot.

After the installation, it was found that the damping of the pitch joint was not enough, and it was only bent and bowed forever. Although it was the RPWT, the Jingdong Review also had the same situation. The joints were on the monitor, and they couldn't be tampered with. They had to be booked before the sale. The height of the monitor can be used to hold the book pad, and the horizontal rotation can be lifted by hand. It is really incontinent if the pitching is insincere, and it is difficult to find a book with a suitable thickness. Do not worry about the situation around the neck, C340's base is basically not installed in the design.

"Dell's base value of 300 blocks" is a joke, but this time still deep-seated. Display placement has a significant impact on health, long-term use is to consider the quality of seats and ambient lighting, save the money in these places to go to a hospital to make full pay, and in the future still have to remind yourself to pay more attention .

Let's do it this way, the game is walking ~


Thick look



Because it is a mobile phone camera, take the white wall as a reference. The lights are not very bright, the walls are not bright, and the actual walls are close to the top left.

21:9 vision is really wide, the game can support adaptive aspect ratio support 3440x1440 resolution and correct display aspect ratio, after all, the technology has long been linked screen, can not adapt to the window mode / borderless window mode Can also solve some. Not all games are suitable for 21:9, because the two sides of the screen are largely seen by the extra light. If there is more information on both sides, they are more tired. If they sit too far and suspect that the surface is redundant (strange in people's eyes), The same applies to everyday applications. From this point, some game's 16:9 UI layout is rather comfortable.

Looking at the 2.35:1 movie is very happy. If you look at the 16:9 video, both sides are black, and the progress bar becomes longer. Drag it to be more accurate. PS can tile 2 windows or 6-8 windows. Dragging and dropping elements between pictures is really convenient. Adobe PR I use very little, the photo is to highlight the timeline, do not spit out the window layout......

100Hz refresh rate, shaking the mouse to be "visible to the naked eye." In terms of experience, "Dust 3" (racing game) is indeed a bit better, and the "Euro Truck Simulator 2" looks more clear and smooth on both sides. The shutter speed of the camera under low light is relatively slow, and it is not visible on the photo. This is a special contrast. Not A card, so I do not know the effect of FreeSync.

Long time no play FPS, but also forgotten the test smear. Called 4ms gray-scale response, the overall feeling is still very positive, anyway, stronger than the U2311H (this year seems to be a new screen are stronger than the 2311 ah), at the resolution of 3440x1440 nothing worth picking. Of course, when you look at your eyes, you will still feel different from the high-brush TN screen, but this is a bit of a limit.

Incidentally, although the movie is 24 frames per second, each frame has enough exposure time and it seems natural and continuous. Each frame of the game is an instant freeze frame (without turning on motion blur), and the low frame rate will naturally appear incoherent.


Interesting panel


Although not professional, with curiosity I still went to the next screen library and English station information, 34-inch screen only two LG and Samsung, LG are AH-IPS, Samsung are SVA, specific to HKC C340 It should be LTM340YP03.

The nominal parameters of the LTM340YP03 are 1800R curvature, 300 nits brightness, 3000:1 contrast ratio, 8-bit color depth, 100% sRGB color gamut.

Interestingly, Samsung's own monitor, the C34F791, uses this panel, but it has a curvature of 1500R.

SAMSUNG C34F791WQ 34-inch 1500R Shock Curvature 100Hz Quantum Dot Technology Surface Display (Samsung Dafa) 9999 yuan Samsung C34F791WQ is a high-end display using QD quantum dot backlight technology, positioning the flagship level, the advantage of quantum dot backlight is that it can provide more Uniform backlight and better color, light perception. The screen is VA material, 34 inches in size, resolution 3440 x 1440. Aspect ratio of 21:9, which is the so-called fish screen, and with 1500R large curvature, in the 2016 display products, this kind of direct link to the encyclopedia

In contrast, the Samsung models have a brightness of 300 nits, a 3000:1 contrast ratio, and 3440×1440@100Hz, which are all nominal parameters of the panel. In addition, it is 125% sRGB (Samsung's quantum dot backlight technology), while HKC models are 110%. sRGB, 250 nits brightness, only marked dynamic contrast.

There are a lot of differences between the two models, and I don’t list them when it comes to panels. The display panel is worth more than the panel. The driver board is also a gold and precious thing. The design, technology, additional functions, etc. will all affect the cost and eventually be integrated into the brand premium. The Samsung C34F791 has done a good job in all aspects and has also sold a million yuan price. This investigation is also an imaginative link.


Combination, contrast, and mutual injury



Win10 recognizes C340 as a "universal plug-and-play display". After turning off the monitor switch, the DP signal is completely disconnected. The system assumes that the cable is unplugged and the desktop icon goes all the way to the secondary screen. It seems that only the software can shut down the screen. If only one monitor is used, it is not a big problem.

In contrast, DELL U2311H, Win10 automatically identify the model, automatically download the color file, do not disconnect the DP signal after turning off the switch, the big brand is still at ease.


After a certain period of time, the screen is in its best state, and the brightness of the factory is just right (individual subjective).

High-contrast is a feature of the VA panel. This Samsung panel nominally has a contrast ratio of 3000:1, while the IPS is more common at 1000:1, which is true for the target LG panel.

VA feels very comfortable when displaying black and white. Black is dark enough and white is white. (The factory default color temperature is actually blue at first glance. It doesn't feel like it for a while, but it feels good.) The sharpness of the text is also very pleasing, and with the comfortable dot pitch, it seems as if it has once again seen a sharp and bright CRT. However, I have to put it behind the color.

The light leakage control of the VA is generally good and it is not filmed. It is better to say that only the IPS leaks from the headache. Contrast U2311H next to it, um, Huanglian Po, you can almost get out of the table...


Try to adjust the C340's monitor settings, tune in and out, and feel no better. Among the preset modes, the movie and TV mode is the fine tuning of the standard mode, the FPS mode and the RTS mode are the dregs color modes, and the good-looking white girl painted a Matt killer, which really cannot be enjoyed.

Open OSD, restore factory settings, pia, or this science.

When used, the problems of color cast and supersaturation that were previously worried are completely absent. It is difficult to say whether this is a case of production batches. The whitening may be different from the human eye, or the screen is an example. I think it is very slight and totally acceptable. Psychological factors do not rule out, after all, VA screen black look good ... As for the difference in style of expression, this can only see the truth, seen in a different screen heart there is an impression, after all, not a professional display. Take the PS casually to a map, the default setting under the delicate color can only be said to be close to AH-IPS, not enough to tie.

When joking with his buddies, they will be called “Internet cafe screens” with displays that look good, have bright screens at first glance, and are really unbearable for a long time (under different application scenarios). C340 at first glance is a bit of Sense of the Internet cafe screen, rough, pure white shell and high color temperature and high brightness, the difference between a clip camera, but run out of an overnight, feeling or overall better than the Internet cafe screen.


Bad and worse


The intuitive feeling of brightness and color of the entire screen is relatively even, and the four corners mean almost. The phone camera effect is also almost meaning.

Mild greasy feeling, not well described, is almost the feeling of the lower left photo, of course, is still much stronger than the cheap IPS (again to give up 2311).

Daily winning, there is a bright spot.

I forgot to take pictures at the viewing angle, I am sorry. The actual observation is not as good as IPS, and the contrast starts to be dropped above and below 65°, that is, it is stronger than ordinary TN. Originally, this kind of curved screen was only comfortable to face, looked at the awkward posture change, and then with a limited perspective, really change the position of a screen (exaggerated statement). The previous VA screen in the impression is not from the perspective of the left and right, can also be from top to bottom, is it right now this is a new game of turning 90?


What's really bad is the visibility of pixels on the left and right edges of the screen. In the case of a sitting position, you cannot see the Win10 taskbar marking line (2px in width). You must look over the body to see it. This is not a problem of obsessive-compulsive disorder. This is a clear product defect. With Win7 fortunately, with Win10 you have to return to the old style, put the taskbar level. Drunkenly, as if returning to the era of eating CRT, want to retreat.


The HSL diagram (actually the HL diagram, hue-lightness, and saturation of the entire map is full), mainly depends on whether the transition is smooth. On the left is U2311H and on the right is C340.

The hue transition in the horizontal direction of C340 is very good, no problem. After all, the U2311H is just a panel of 6 shakes and the difference in resolution can be seen differently.

Is the brightness (gradation) transition in the vertical direction a thing of the past? The visual sense of segmentation (ripple) is visually measured with 10 pixels. Isn't it better than U2311H? Is it my setting?

At that time, it was late, and it was too late to study the matter. The second day, after waking up, Jingdong came to the market and sent it away. Because I haven’t seen any evaluations to do a complete level test, I’m not sure if it’s a case or setting issue. I’m still waiting for a friend to test it so that I don’t mislead you.

For the knowledge of monitor levels, refer to the EIZO library.


Comfort and practicality


Reference point distance:

The pitch of the 34-inch 3.5K screen is similar to that of the 27-inch 2.5K screen. Both the exquisiteness and the visibility are good. The desktop uses a 100% zoom and feels good. It adapts quickly from the 23-inch 1080P. There is no fatigue due to dot pitch (varies from person to person) for browsing the web for a long time.

There is a sense of dryness after playing the game. It is difficult to say whether it is the adaptation process or the screen itself. The default brightness does not feel harsh.

My table is 65cm deep, and the distance from my eyes to the screen is also about 65cm. There is no problem if I sit a little closer, but if it is less than 50cm, it will definitely be too much.


As for visual proportions, it is said that the greater the degree of immersion is, the stronger the immersive feeling is. The actual use still depends on the depth of the tabletop and the use distance. The 1800R is also the degree of curvature of a circle with a radius of 1.8m. Before the start, you can use a ruler to mark it.

The 34-inch 21:9 1800R, when it is hard to say, the left and right visual fields are full, but the upper and lower visual field is a little empty, and it's slightly more or less blinking (it still differs from person to person).


The viewing angle of this kind of screen is very important. It must not be strange when it is completely perpendicular to the line of sight. Otherwise, the upper and lower angles are a bit off, and the curvature of the screen gives a distinct sense of curvature. Did not try 16:9 curved screen, I do not know if it will be better.

I think most people are accustomed to seeing flat paper, flat whiteboards, and flat displays. They are also accustomed to seeing the perspective ratios when viewing planes from different angles of view. Therefore, when looking at curved screens from an angle of view other than that, they have a sense of distortion. It is particularly unnatural.


In practical use, the secondary screen is of little significance. The 21:9 3.5K is more suitable as an upgrade alternative to the dual 1080P screen, and the space utilization is also more reasonable. If you have a secondary screen, you can use the stand above the main screen to keep it in the easier-to-notice field of view.


Cool time


Add money: all decided to spend ¥ 3400 to buy a monitor, do not have to invest more ¥ 2100 to buy a LG 34UC88, to meet their desire to step in place?

Demand: Do you really need surface 21:9? The cost of the surface fish screen expensive, is not able to buy a good 27-inch 16:9 monitor?


summary


Personal understanding, home monitor applications are more comprehensive, both games, film and television, but also browsing the web and documents, and even some non-professional picture and video editing, the pursuit of a balance of various properties - do not want to play the game Smear and sluggishness; when watching a movie, I don't want the shadows of the highlights to become lumpy; I don't want to distinguish the colors when I'm retouching the picture; I don't want the eyes to feel uncomfortable when I'm typing. If I pursue the ultimate, the budget will rise straight. Left cut right cut, cut to the mainstream level, you will find that manufacturers in fact, very conscientious about consumer psychology. C340 as a whole is such a product on the balance of the squeeze cost-effective products, for picky people in terms of white jade is flawless, is not a picky person is a surprise.

You ask me if HKC C340 is OK or not. I say it well. You ask me if I want to buy it. I can only comment on it.

Finally, please refer to these four reviews before purchasing:

An endless encounter with Zhang Aunt's journey - HKC Week C340 IPS display Ever since I met Zhang Aunt, my unicorn arm couldn't control it. If I didn't do anything, I would have been paralyzed. Has become a residual arm, nothing to love is to see everyone's original, nothing to take a look at work, go home to see a look, more and more things at home, the wallet is getting more and more flat, poor me every month The salary can only stay in the account for 1 minute, haha. When you are in a bad mood, what you love to watch is Auntie Zhang and see what has happened recently to the history of the most diamond macho _| Likes 17 Comments 33 Favorites 28 View Details The end of regret: an infinitely close to winning lottery HKC C340 1800R surface display additional modification (2016-12-3101:59:03): after the color correction screen is not white. Although 6500K is very yellow.. 7500 is too cold according to the comparison The color meter rental shop advises to adjust the target color temperature after 7200K color correction after school color and IPHONE almost. ~ Although the red is still relatively red but more comfortable feeling that this should be caused by the wide use of color gamut ... The feeling of value.. The new problem is. D Xiaochai students | Like43 Comments118 Collection63View details Regret to eat crab: HKC Kay C340 34 inch 21:9 surface FreeSync gaming monitor additional modification (2016-11-1900:25:37):11.18JD replacement perfect screen interface all available native 100HZ refresh rate NICE since UP ten After the new host computer has been installed on the moon, in order to fully utilize the 1080 nuclear bomb, replacing the monitor is a matter of course. The next step is to determine what type of monitor to buy. After visiting Zhang Aunt for a few days, I discovered that the 34-inch octopus screen was really stunning. Ledge| Likes 17 Comments 80 Favorites15View Details

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