Display Color Calibration

[Alessio_841]

I have now an X Compact black and the lucid plastic used for it is the same ofthe two lateral sides of XZ Premium. Objectively, is a good material, has its benefits for cellular waves but it is clearly that feels not premium as metal when hold it. However the build quality is superb.

Again, I like so much the design of XZ Premium, bezels are useful when holding the device landscape and to have inside the stereo speakers.

What disappoint me is the calibration of the display. As showed into PhoneArena.com review, the color chart is worse compared to XZ and X Compact ones, especially the white point. XZ and X Compact match so much the DCI-P3 standard while XZ Premium matches it less. I hoping a better calibration for the premium standard od the display and device. And the display is more and more important compared to materials used.

Edit: This topic was moved from the off topic thread since it turned out to be relevant by itself.  // JensG

[MarlonUk1]

all your discussions are really enganging ,,, I want to know if you can like show something different compared to other oems with simillar display panels or real world impact of the the kinks that you found due to the way the screen is calibrated,  :smileyyahoo::smileymrgreen:

[Alessio_841]

@nolramlb

This is not a discussion but only an explanation about the latest flagship.

About the daily impact of the not well calibrated screen, colors not calibrated affect, for example, the manual exposure to take good shots. More, the representation of media, via Netflix for example, are not the same, in color rendering, of what intended. More, the greyand whites have a pronunced bluish tint and this is evident through the camera when tergeting white objects. Little details but important when talking about a FLAGSHIP. Samsung S8 has a PERFECT calibrated DCI-P3 color chart and is certified by UHS! Why Sony not? Today the most users (not fan) before buy a big amount of cash, evaluate all and compare all to have the best. These aspects are too poor for you? If yes, it means that you are only a fanboy, sorry.

@Thelastoforus

Excellent display because the tech of the display is excellent. However the colors are not well calibrated, magenta is wrong respect P3, yellow also, cyan, red and green so so. XZ/XC also have most color off respect P3 but they match better the standard DCI-P3. However the XZP display remains an excellent display.

[Thelastofus]

Sony never was good at mobile display they are always behind the competition unfortunatly ...

I still think plastic frame was a wrong choice by SONY ! You said that's because SONY used 8 anttena in xzp to get better reception!But it's not a good reason that's SONY engineer problem not customers !

[JensG]

@Alessio_84 thank you for sharing additional details on the color calibration you want.

> The XZP compared is the Standard display option.

Where did you read that? If confirmed, it would also confirm that the measurement used in the review is not very relevant as a sign of how good the phone/display is calibrated compared to spec. The "professional mode" is specifically to be used if you want a stricter spec colors.

Have you read that DCI-P3 is the color spec the XZ Premium aims for, or is that just your preference?

> less calibrated respect XZ/XC ones, especially magenta and white point (bluish).

The instructions on the http://www.phonearena.com/phones/benchmarks says for "Color gamut":
"The small squares across the boundaries of the triangle are the reference points for the various colors, while the small dots are the actual measurements. Ideally, each dot should be positioned on top of its respective square."

According to the "Screen Measurements" table:
DELTA E RGBCMY (LOWER IS BETTER) has 4.49 XZP and 5.67 for XZ.

With that information I find it hard to say that XZP is less calibrated than XZ.

For example, the DCI-P3 can be used with different white points.
https://en.wikipedia.org/wiki/DCI-P3#System_colorimetry

[Qatrium]

---

@Thelastofus wrote:

Sony never was good at mobile display they are always behind the competition unfortunatly ...

I still think plastic frame was a wrong choice by SONY ! You said that's because SONY used 8 anttena in xzp to get better reception!But it's not a good reason that's SONY engineer problem not customers !

---

@Thelastofus

With all my due respect, that's still your personal opinion that you don't like what Sony did in their XZP. You must understand that every creation has its limitations, and I'm sure that those engineers that you are criticizing while sitting behind your keyboard had their share of studying all the possible options they could use. The final product might not be perfect, because there's nothing perfect in this world after all.

A healthy argument should be based on knowledge and should have at least some logic when giving opinions on technical stuff. Personal taste is another thing, and from what I read from your posts I clearly see that XZP is not suiting your personal taste in many ways, that's your right and you're free to express it as you wish. But when it comes to technical aspects, you just use "it's not my problem it's Sony engineers' problem", then read a bit or study engineering and try to give ideas to the hopeless engineers over there, that would be more helpful.

[Alessio_841]

@JensG

I suggest you to read something about the color spaces and the mean of different values and parameters before answer without know about in detail. 

About your first doubt, I suggest you to read the review on GSMArena to find the answer. In days will arrive another detailed review in color charts on Notebookcheck.net.

The XZP has a DCI-P3 color space according to charts, coordinates of primary and secondary colors and triangle according to PhotoShop. And if you don't trust these, if you had seen the S8+ chart, you would have seen that the charts are very similar. As before, I suggest you to detail the argument. :smileysmileythumbsup:

The instructions reported on PhoneArena.com refer to sRGB color gamut because they use it to compare with other charts. Is it clear? :smileysmileythumbsup:

According to "screen measurements", the values reported refer to sRGB and not to DCI-P3 chart. It is simple to notice however: If you had seen the S8+, you would have seen that it has bigger values because exceed from sRGB. :smileysmileythumbsup:

Considering the fact that you don't know more about the color calibration and charts, for you is natural say that the XZP's display is better calibrated than XZ one.

More, according to GSMArena (and Notebookcheck then), XZ has better blacks and contrast than XZP; are you sure about XZP has better display than XZ one!? 

Finally, it is very cute you report a Wikipedia article, but the articles must be included. However, have you tried to take the XZP chart and measure with the ruler the values? I think not, otherwise you wouldn't have reported the article. :smileysmileythumbsup:

However, I will not answer more about because there is nothing to add and the theme is off the thread. Personally, I answer only when I know something, I don't want to do look bad.

[JensG]

I moved this topic into a new thread so it's now on topic!

@Alessio_84 I think you've misunderstood my agenda entirely. I've been open with myself not being any color expert, and I welcome this chance if you are willing to engage in a discussion where we can all learn in the community.

> Considering the fact that you don't know more about the color calibration and charts,

> for you is natural say that the XZP's display is better calibrated than XZ one.

I don't think I've said anything like that, actually the comparison isn't that interesting to me in itself. I've only been trying to learn how you see the opposite relation. With the information I find in the article it's hard to say that XZP is less calibrated than XZ.

With reference to the article you read about the Xperia XZ Premium, I did however quote this passage: "it's hard to find something not to like about it." This is not a comparison, just a quote that I happen to agree with.

I've further learned that the graphs you quoted from the article are indeed from the default color mode. The default setting is not aiming mainly for color accuracy, but for a good user experience. For those that want accuracy, try the "professional mode", but you should know that this mode aims for sRGB color gamut. Even if you prefer DCI-P3, it is not the color spec the XZ Premium aims for.

> In days will arrive another detailed review in color charts on Notebookcheck.net.

If you can provide a link, that could be interesting.

> However, have you tried to take the XZP chart and measure with the ruler the values?

I didn't understand how to measure for DCI-P3 reference in the graphs given. Would you mind sharing the graph again with markings for how to measure?

[azzido]

I still hope Sony can update the white color to be more white with the software update. 

Definitely it would be nice to hear from Sony representative whether it is a hardware limitation or just software related. Maybe they did not have enough time to callibrate it? You know when you want to do things in a hurry. 

Can someone please pass this feedback to Sony internally? 

[Alessio_841]

I agree. 

The Standard mode of XZ Premium is not well balanced, especially the white point that clearly tends to cyan. Plus, the temperature of the display is too cold, blacks are not deep as XZ ones and contrast too.

I like too much this device, also if bigger, but from a display with this technology I would have see an extremely calibrated display as Samsung S8 that perfectly matches the DCI-P3 gamut for video contents.

[Alessio_841]

@JenG

The Standard profile is intended to match the DCI-P3 gamut as the RGB values (measured in the chart) suggest. This make sense because the device is voted to consumes video contents.

Opposite that I wrote before, the RGB values quite well match the DCI-P3 standard ones (I well measured them). Secondary colors, especially magenta, don't match so well as RGB the DCI-P3 standards. Samsung S8, as stated by DisplayMatch, has perfect match, in Cinema Mode, with the DCI-P3 standard. In PhoneArena review, they make confusion because compare the XZP standard profile (matching the DCI-P3) with the Photo Mode of S8/S8+ (that matches the Adobe RGB 1998). This explains the difference in DeltaE values in favor of XZP.

Clarify this, S8/S8+ has better color accuracy compared to XZP in the same profile. 

Despite this, can you tell me about the cold XZP display and, especially, the bluish tint in greyscale that affect the color accuracy? If you are a seriuos person as I think, is it well to see a bluish whites? 

You can also see this in the gamut of XZP where the white point is far from the D65 reference.

Also, which are the ipothetic advantages to have the bluish gray and whites (and colors not properly real)?

Always from PhoneArena:

"We have only one complaint about the panel – its colors are somewhat unrealistic."

I hope you really could answer me very well about the questions I posted to you especially the bluish whites that affects color accuracy.

Thanks.